ok  	github.com/google/syzkaller/dashboard/app	(cached)
?   	github.com/google/syzkaller/dashboard/dashapi	[no test files]
ok  	github.com/google/syzkaller/executor	1.117s
ok  	github.com/google/syzkaller/pkg/ast	3.109s
ok  	github.com/google/syzkaller/pkg/bisect	57.180s
ok  	github.com/google/syzkaller/pkg/build	2.522s
?   	github.com/google/syzkaller/pkg/cmdprof	[no test files]
ok  	github.com/google/syzkaller/pkg/compiler	10.546s
ok  	github.com/google/syzkaller/pkg/config	(cached)
?   	github.com/google/syzkaller/pkg/cover	[no test files]
--- FAIL: TestGenerate (6.92s)
    --- FAIL: TestGenerate/freebsd/386 (1.01s)
        csource_test.go:67: seed=1606188029519861735
        --- FAIL: TestGenerate/freebsd/386/12 (1.48s)
            csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:true Trace:false}
                program:
                setsockopt$inet_opts(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000000)="ec04a904b9d2ea02fab2df1d9de39f3f5aa2344397e186204d39d74da156e7c6cd98195b7b83c652b06b6222bdef3363961bf47e9b530fbf65bae3607b60941e2715bd678fcebc5524bcefd3184d", 0x4e)
                ioctl$DIOCSETIFFLAG(0xffffffffffffffff, 0xc0284459, &(0x7f0000000180)={0x10, &(0x7f0000000080)="de11c2a774191d70f51e7c3e375c2814ac72c2d5d0404a2e3d5baf92161f3b451efe9c4c79d7660668f6073e2f76c5f2145195e8c1a4ec34b6f69c1b582768207b28a979f05adc14a3357fe7c493fc81a9177524631bb209be637f8695747fa7cf1c68ac691f169c1b8fb67d7a3776ddfc620ffbe6831f74d2f2d089a4ffecf510a99702258c58ea9e871d4f4ab9a347aabdbb03585b37b5c79436c0c1160a5876b61bbf0c814bb49a27a36082df13cb2f9de2f942b6ac7e158880cfc03cfdccca9fc0f2347eb543a343b4c92707fe736a86a35d58e26f6fd2e9ec8f82", 0x7, 0x5a764000, 0x6})
                recvfrom$inet6(0xffffffffffffff9c, &(0x7f00000001c0)=""/23, 0x17, 0x2, &(0x7f0000000200)={0x1c, 0x1c, 0x3, 0x6, @loopback, 0x2d99}, 0x1c)
                r0 = shm_open2(&(0x7f0000000240)='./file0\x00', 0x800, 0x0, 0x7, &(0x7f0000000280)='\x00')
                sendfile(r0, 0xffffffffffffff9c, 0x8, 0x800, &(0x7f00000015c0)={&(0x7f0000000540)=[{&(0x7f00000002c0)="efacade58ab0192351a102ada32ad1f41e429edf6c4a513ac6d669cadb222eb68297ab8f9f7b3234d0c6cfa280ad14dc1c4c34175119446d79a030d48b57304eb90b428c202382d86cd71e9c1ecc8d3e2d764aae3714cb591eb027e46943e23eb7656875867e603cf13892a74c42bb1844c27f7f454f9661f1dbb35004ada4d6d75b1df342e967493d207d6b8b4edcbf9d1e378445573684ed139b671abf6576edf8d7342cd8649d376970acbde224a7b0b6a975a8ba0a768ed6abe16c1b694f65dd4231f48c2884", 0xc8}, {&(0x7f00000003c0)="a6e4fe186c760ac2ebbcf9efda5e22e2df6f153fccda1c16976037d03ee004c3fbba5d35b6c083130fc705f95889ba6adbe5e3a7a5e70136a0ca085b7e504d0df55fe184a9bd7a82", 0x48}, {&(0x7f0000000440)="c7e00030b3c4541743ee6513", 0xc}, {&(0x7f0000000480)="a4a67a4e72492b9fab6379e4c0f35b22b69b6e7aefc56beefa857ae28543", 0x1e}, {&(0x7f00000004c0)="8f095f8df1c6bc4dfc1d826f02dfa7794bebf9e7ffc7160f276a53d1abc996fca8c8dbc7c79c09cd5f954775c9e8fc1cf2e0e3c054fb54b662d1b45f5235fdbf860c3fed3dc34ceb30c44baa4ded7de7e9533f4dca146db0db35a93ba654d49011d9cb98d1576b731b9c2bb58c0df4edee6ef5ae1f8b6bc9646f5b4ade4dd52a", 0x80}], 0x5, &(0x7f0000001580)=[{&(0x7f0000000580)="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", 0x1000}], 0x1}, &(0x7f0000001600), 0x9)
                ioctl$DIOCXROLLBACK(0xffffffffffffffff, 0xc0104453, &(0x7f0000001640)="6c811ba52c139b40dc5680cb0275fdd440468e4dae07c745ba758cb266742f468fc42da0669f6061cb2c9f921e953451b3135e0174fe8eb1aebb2c3eb8a7fb3fc8dea18e652d01e7184ca65dce04f4679afed2766b067349de7a5ef60b586992919a20382c0a1f20af0c9c7fac61cf18383e36fe56502f5f26b8")
                freebsd10_pipe(&(0x7f00000016c0)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
                setsockopt$inet6_sctp_SCTP_BINDX_REM_ADDR(r2, 0x84, 0x8002, &(0x7f0000001700)=@in={0x10, 0x2, 0x3, @rand_addr=0x7}, &(0x7f0000001740)=0x10)
                getsockopt$inet6_sctp_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000001780), &(0x7f00000017c0)=0x4)
                getsockopt$inet6_sctp_SCTP_HMAC_IDENT(r1, 0x84, 0x14, &(0x7f0000001800)={0x8, [0x1000, 0x0, 0x8000, 0x200, 0x4000, 0x0, 0x1, 0x0]}, &(0x7f0000001840)=0x14)
                syz_emit_ethernet(0x93, &(0x7f0000000000)={@random="c90c8a7c337f", @local, [{}], {@ipv4={0x800, {{0x1c, 0x4, 0x0, 0x0, 0x81, 0x65, 0x5, 0x1, 0x46, 0x0, @broadcast, @remote={0xac, 0x14, 0x0}, {[@end, @timestamp={0x44, 0xc, 0x5, 0x0, 0x3, [{[], 0x9}, {[], 0x4}]}, @lsrr={0x83, 0xb, 0x6, [@multicast1, @broadcast]}, @generic={0x0, 0x4, "a4d4"}, @ssrr={0x89, 0x13, 0x4, [@remote={0xac, 0x14, 0x0}, @broadcast, @remote={0xac, 0x14, 0x0}, @empty]}, @ra={0x94, 0x6, 0x9}, @ra={0x94, 0x6, 0x80000001}, @noop, @lsrr={0x83, 0x1f, 0x2, [@multicast2, @multicast1, @loopback, @empty, @loopback, @loopback, @multicast1]}]}}, @generic="8d862d099b6bb2ba6aeaa6abd3e9d582c9"}}}})
                syz_execute_func(&(0x7f00000000c0)="c4e1f5f37b05c4c2f547525a808f4e00000000660f381dbc6007000000c4e2ad9174ae7e81fe000000008fe9a099d8e4ffc4c1935c17c4c3e141ae2f109dc2d8")
                syz_extract_tcp_res(&(0x7f0000000100), 0x5, 0x7ff)
                
            csource_test.go:124: failed to build program:
                // autogenerated by syzkaller (https://github.com/google/syzkaller)
                
                #define _GNU_SOURCE 
                
                #include <sys/types.h>
                
                #include <dirent.h>
                #include <errno.h>
                #include <pthread.h>
                #include <pwd.h>
                #include <signal.h>
                #include <stdarg.h>
                #include <stdbool.h>
                #include <stdint.h>
                #include <stdio.h>
                #include <stdlib.h>
                #include <string.h>
                #include <sys/endian.h>
                #include <sys/resource.h>
                #include <sys/stat.h>
                #include <sys/syscall.h>
                #include <sys/wait.h>
                #include <time.h>
                #include <unistd.h>
                
                static void kill_and_wait(int pid, int* status)
                {
                	kill(pid, SIGKILL);
                	while (waitpid(-1, status, 0) != pid) {
                	}
                }
                
                static void sleep_ms(uint64_t ms)
                {
                	usleep(ms * 1000);
                }
                
                static uint64_t current_time_ms(void)
                {
                	struct timespec ts;
                	if (clock_gettime(CLOCK_MONOTONIC, &ts))
                	exit(1);
                	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
                }
                
                static void use_temporary_dir(void)
                {
                	char tmpdir_template[] = "./syzkaller.XXXXXX";
                	char* tmpdir = mkdtemp(tmpdir_template);
                	if (!tmpdir)
                	exit(1);
                	if (chmod(tmpdir, 0777))
                	exit(1);
                	if (chdir(tmpdir))
                	exit(1);
                }
                
                static void __attribute__((noinline)) remove_dir(const char* dir)
                {
                	DIR* dp = opendir(dir);
                	if (dp == NULL) {
                		if (errno == EACCES) {
                			if (rmdir(dir))
                	exit(1);
                			return;
                		}
                	exit(1);
                	}
                	struct dirent* ep = 0;
                	while ((ep = readdir(dp))) {
                		if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
                			continue;
                		char filename[FILENAME_MAX];
                		snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
                		struct stat st;
                		if (lstat(filename, &st))
                	exit(1);
                		if (S_ISDIR(st.st_mode)) {
                			remove_dir(filename);
                			continue;
                		}
                		if (unlink(filename))
                	exit(1);
                	}
                	closedir(dp);
                	if (rmdir(dir))
                	exit(1);
                }
                
                static void thread_start(void* (*fn)(void*), void* arg)
                {
                	pthread_t th;
                	pthread_attr_t attr;
                	pthread_attr_init(&attr);
                	pthread_attr_setstacksize(&attr, 128 << 10);
                	int i = 0;
                	for (; i < 100; i++) {
                		if (pthread_create(&th, &attr, fn, arg) == 0) {
                			pthread_attr_destroy(&attr);
                			return;
                		}
                		if (errno == EAGAIN) {
                			usleep(50);
                			continue;
                		}
                		break;
                	}
                	exit(1);
                }
                
                typedef struct {
                	pthread_mutex_t mu;
                	pthread_cond_t cv;
                	int state;
                } event_t;
                
                static void event_init(event_t* ev)
                {
                	if (pthread_mutex_init(&ev->mu, 0))
                	exit(1);
                	if (pthread_cond_init(&ev->cv, 0))
                	exit(1);
                	ev->state = 0;
                }
                
                static void event_reset(event_t* ev)
                {
                	ev->state = 0;
                }
                
                static void event_set(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	if (ev->state)
                	exit(1);
                	ev->state = 1;
                	pthread_mutex_unlock(&ev->mu);
                	pthread_cond_broadcast(&ev->cv);
                }
                
                static void event_wait(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	while (!ev->state)
                		pthread_cond_wait(&ev->cv, &ev->mu);
                	pthread_mutex_unlock(&ev->mu);
                }
                
                static int event_isset(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                static int event_timedwait(event_t* ev, uint64_t timeout)
                {
                	uint64_t start = current_time_ms();
                	uint64_t now = start;
                	pthread_mutex_lock(&ev->mu);
                	for (;;) {
                		if (ev->state)
                			break;
                		uint64_t remain = timeout - (now - start);
                		struct timespec ts;
                		ts.tv_sec = remain / 1000;
                		ts.tv_nsec = (remain % 1000) * 1000 * 1000;
                		pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
                		now = current_time_ms();
                		if (now - start > timeout)
                			break;
                	}
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
                #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
                
                struct csum_inet {
                	uint32_t acc;
                };
                
                static void csum_inet_init(struct csum_inet* csum)
                {
                	csum->acc = 0;
                }
                
                static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
                {
                	if (length == 0)
                		return;
                	size_t i = 0;
                	for (; i < length - 1; i += 2)
                		csum->acc += *(uint16_t*)&data[i];
                	if (length & 1)
                		csum->acc += le16toh((uint16_t)data[length - 1]);
                	while (csum->acc > 0xffff)
                		csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
                }
                
                static uint16_t csum_inet_digest(struct csum_inet* csum)
                {
                	return ~csum->acc;
                }
                
                static void sandbox_common()
                {
                	if (setsid() == -1)
                	exit(1);
                	struct rlimit rlim;
                	rlim.rlim_cur = rlim.rlim_max = 128 << 20;
                	setrlimit(RLIMIT_AS, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 8 << 20;
                	setrlimit(RLIMIT_MEMLOCK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_FSIZE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_STACK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 0;
                	setrlimit(RLIMIT_CORE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 256;
                	setrlimit(RLIMIT_NOFILE, &rlim);
                }
                
                static void loop();
                
                static int do_sandbox_none(void)
                {
                	sandbox_common();
                	loop();
                	return 0;
                }
                
                static long syz_execute_func(volatile long text)
                {
                	((void (*)(void))(text))();
                	return 0;
                }
                
                struct thread_t {
                	int created, call;
                	event_t ready, done;
                };
                
                static struct thread_t threads[16];
                static void execute_call(int call);
                static int running;
                
                static void* thr(void* arg)
                {
                	struct thread_t* th = (struct thread_t*)arg;
                	for (;;) {
                		event_wait(&th->ready);
                		event_reset(&th->ready);
                		execute_call(th->call);
                		__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
                		event_set(&th->done);
                	}
                	return 0;
                }
                
                static void execute_one(void)
                {
                	if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
                	}
                	int i, call, thread;
                	for (call = 0; call < 13; call++) {
                		for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
                			struct thread_t* th = &threads[thread];
                			if (!th->created) {
                				th->created = 1;
                				event_init(&th->ready);
                				event_init(&th->done);
                				event_set(&th->done);
                				thread_start(thr, th);
                			}
                			if (!event_isset(&th->done))
                				continue;
                			event_reset(&th->done);
                			th->call = call;
                			__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
                			event_set(&th->ready);
                			event_timedwait(&th->done, 45);
                			break;
                		}
                	}
                	for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
                		sleep_ms(1);
                }
                
                static void execute_one(void);
                
                #define WAIT_FLAGS 0
                
                static void loop(void)
                {
                	int iter = 0;
                	for (;; iter++) {
                		char cwdbuf[32];
                		sprintf(cwdbuf, "./%d", iter);
                		if (mkdir(cwdbuf, 0777))
                	exit(1);
                		int pid = fork();
                		if (pid < 0)
                	exit(1);
                		if (pid == 0) {
                			if (chdir(cwdbuf))
                	exit(1);
                			execute_one();
                			exit(0);
                		}
                		int status = 0;
                		uint64_t start = current_time_ms();
                		for (;;) {
                			if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
                				break;
                			sleep_ms(1);
                			if (current_time_ms() - start < 5 * 1000)
                				continue;
                			kill_and_wait(pid, &status);
                			break;
                		}
                		remove_dir(cwdbuf);
                	}
                }
                
                uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
                
                void execute_call(int call)
                {
                		intptr_t res = 0;
                	switch (call) {
                	case 0:
                memcpy((void*)0x10000000, "\xec\x04\xa9\x04\xb9\xd2\xea\x02\xfa\xb2\xdf\x1d\x9d\xe3\x9f\x3f\x5a\xa2\x34\x43\x97\xe1\x86\x20\x4d\x39\xd7\x4d\xa1\x56\xe7\xc6\xcd\x98\x19\x5b\x7b\x83\xc6\x52\xb0\x6b\x62\x22\xbd\xef\x33\x63\x96\x1b\xf4\x7e\x9b\x53\x0f\xbf\x65\xba\xe3\x60\x7b\x60\x94\x1e\x27\x15\xbd\x67\x8f\xce\xbc\x55\x24\xbc\xef\xd3\x18\x4d", 78);
                		syscall(SYS_setsockopt, 0xffffff9c, 0, 0, 0x10000000, 0x4e);
                		break;
                	case 1:
                *(uint8_t*)0x10000180 = 0x10;
                *(uint32_t*)0x10000184 = 0x10000080;
                memcpy((void*)0x10000080, "\xde\x11\xc2\xa7\x74\x19\x1d\x70\xf5\x1e\x7c\x3e\x37\x5c\x28\x14\xac\x72\xc2\xd5\xd0\x40\x4a\x2e\x3d\x5b\xaf\x92\x16\x1f\x3b\x45\x1e\xfe\x9c\x4c\x79\xd7\x66\x06\x68\xf6\x07\x3e\x2f\x76\xc5\xf2\x14\x51\x95\xe8\xc1\xa4\xec\x34\xb6\xf6\x9c\x1b\x58\x27\x68\x20\x7b\x28\xa9\x79\xf0\x5a\xdc\x14\xa3\x35\x7f\xe7\xc4\x93\xfc\x81\xa9\x17\x75\x24\x63\x1b\xb2\x09\xbe\x63\x7f\x86\x95\x74\x7f\xa7\xcf\x1c\x68\xac\x69\x1f\x16\x9c\x1b\x8f\xb6\x7d\x7a\x37\x76\xdd\xfc\x62\x0f\xfb\xe6\x83\x1f\x74\xd2\xf2\xd0\x89\xa4\xff\xec\xf5\x10\xa9\x97\x02\x25\x8c\x58\xea\x9e\x87\x1d\x4f\x4a\xb9\xa3\x47\xaa\xbd\xbb\x03\x58\x5b\x37\xb5\xc7\x94\x36\xc0\xc1\x16\x0a\x58\x76\xb6\x1b\xbf\x0c\x81\x4b\xb4\x9a\x27\xa3\x60\x82\xdf\x13\xcb\x2f\x9d\xe2\xf9\x42\xb6\xac\x7e\x15\x88\x80\xcf\xc0\x3c\xfd\xcc\xca\x9f\xc0\xf2\x34\x7e\xb5\x43\xa3\x43\xb4\xc9\x27\x07\xfe\x73\x6a\x86\xa3\x5d\x58\xe2\x6f\x6f\xd2\xe9\xec\x8f\x82", 221);
                *(uint32_t*)0x10000188 = 7;
                *(uint32_t*)0x1000018c = 0x5a764000;
                *(uint32_t*)0x10000190 = 6;
                		syscall(SYS_ioctl, -1, 0xc0284459, 0x10000180);
                		break;
                	case 2:
                *(uint8_t*)0x10000200 = 0x1c;
                *(uint8_t*)0x10000201 = 0x1c;
                *(uint16_t*)0x10000202 = htobe16(0x4e23);
                *(uint32_t*)0x10000204 = 6;
                *(uint64_t*)0x10000208 = htobe64(0);
                *(uint64_t*)0x10000210 = htobe64(1);
                *(uint32_t*)0x10000218 = 0x2d99;
                		syscall(SYS_recvfrom, 0xffffff9c, 0x100001c0, 0x17, 2, 0x10000200, 0x1c);
                		break;
                	case 3:
                memcpy((void*)0x10000240, "./file0\000", 8);
                memcpy((void*)0x10000280, "\000", 1);
                		res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                		if (res != -1)
                				r[0] = res;
                		break;
                	case 4:
                *(uint32_t*)0x100015c0 = 0x10000540;
                *(uint32_t*)0x10000540 = 0x100002c0;
                memcpy((void*)0x100002c0, "\xef\xac\xad\xe5\x8a\xb0\x19\x23\x51\xa1\x02\xad\xa3\x2a\xd1\xf4\x1e\x42\x9e\xdf\x6c\x4a\x51\x3a\xc6\xd6\x69\xca\xdb\x22\x2e\xb6\x82\x97\xab\x8f\x9f\x7b\x32\x34\xd0\xc6\xcf\xa2\x80\xad\x14\xdc\x1c\x4c\x34\x17\x51\x19\x44\x6d\x79\xa0\x30\xd4\x8b\x57\x30\x4e\xb9\x0b\x42\x8c\x20\x23\x82\xd8\x6c\xd7\x1e\x9c\x1e\xcc\x8d\x3e\x2d\x76\x4a\xae\x37\x14\xcb\x59\x1e\xb0\x27\xe4\x69\x43\xe2\x3e\xb7\x65\x68\x75\x86\x7e\x60\x3c\xf1\x38\x92\xa7\x4c\x42\xbb\x18\x44\xc2\x7f\x7f\x45\x4f\x96\x61\xf1\xdb\xb3\x50\x04\xad\xa4\xd6\xd7\x5b\x1d\xf3\x42\xe9\x67\x49\x3d\x20\x7d\x6b\x8b\x4e\xdc\xbf\x9d\x1e\x37\x84\x45\x57\x36\x84\xed\x13\x9b\x67\x1a\xbf\x65\x76\xed\xf8\xd7\x34\x2c\xd8\x64\x9d\x37\x69\x70\xac\xbd\xe2\x24\xa7\xb0\xb6\xa9\x75\xa8\xba\x0a\x76\x8e\xd6\xab\xe1\x6c\x1b\x69\x4f\x65\xdd\x42\x31\xf4\x8c\x28\x84", 200);
                *(uint32_t*)0x10000544 = 0xc8;
                *(uint32_t*)0x10000548 = 0x100003c0;
                memcpy((void*)0x100003c0, "\xa6\xe4\xfe\x18\x6c\x76\x0a\xc2\xeb\xbc\xf9\xef\xda\x5e\x22\xe2\xdf\x6f\x15\x3f\xcc\xda\x1c\x16\x97\x60\x37\xd0\x3e\xe0\x04\xc3\xfb\xba\x5d\x35\xb6\xc0\x83\x13\x0f\xc7\x05\xf9\x58\x89\xba\x6a\xdb\xe5\xe3\xa7\xa5\xe7\x01\x36\xa0\xca\x08\x5b\x7e\x50\x4d\x0d\xf5\x5f\xe1\x84\xa9\xbd\x7a\x82", 72);
                *(uint32_t*)0x1000054c = 0x48;
                *(uint32_t*)0x10000550 = 0x10000440;
                memcpy((void*)0x10000440, "\xc7\xe0\x00\x30\xb3\xc4\x54\x17\x43\xee\x65\x13", 12);
                *(uint32_t*)0x10000554 = 0xc;
                *(uint32_t*)0x10000558 = 0x10000480;
                memcpy((void*)0x10000480, "\xa4\xa6\x7a\x4e\x72\x49\x2b\x9f\xab\x63\x79\xe4\xc0\xf3\x5b\x22\xb6\x9b\x6e\x7a\xef\xc5\x6b\xee\xfa\x85\x7a\xe2\x85\x43", 30);
                *(uint32_t*)0x1000055c = 0x1e;
                *(uint32_t*)0x10000560 = 0x100004c0;
                memcpy((void*)0x100004c0, "\x8f\x09\x5f\x8d\xf1\xc6\xbc\x4d\xfc\x1d\x82\x6f\x02\xdf\xa7\x79\x4b\xeb\xf9\xe7\xff\xc7\x16\x0f\x27\x6a\x53\xd1\xab\xc9\x96\xfc\xa8\xc8\xdb\xc7\xc7\x9c\x09\xcd\x5f\x95\x47\x75\xc9\xe8\xfc\x1c\xf2\xe0\xe3\xc0\x54\xfb\x54\xb6\x62\xd1\xb4\x5f\x52\x35\xfd\xbf\x86\x0c\x3f\xed\x3d\xc3\x4c\xeb\x30\xc4\x4b\xaa\x4d\xed\x7d\xe7\xe9\x53\x3f\x4d\xca\x14\x6d\xb0\xdb\x35\xa9\x3b\xa6\x54\xd4\x90\x11\xd9\xcb\x98\xd1\x57\x6b\x73\x1b\x9c\x2b\xb5\x8c\x0d\xf4\xed\xee\x6e\xf5\xae\x1f\x8b\x6b\xc9\x64\x6f\x5b\x4a\xde\x4d\xd5\x2a", 128);
                *(uint32_t*)0x10000564 = 0x80;
                *(uint32_t*)0x100015c4 = 5;
                *(uint32_t*)0x100015c8 = 0x10001580;
                *(uint32_t*)0x10001580 = 0x10000580;
                memcpy((void*)0x10000580, 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d\x78\x21\x78\x31\x91\xe0\x3b\x56\x82\xae\x7c\x0d\xad\xd4\xa9\x27\x24\xaa\xfc\xe0\x24\xae\x0a\xcc\x8e\x39\xcd\x3e\xaf\x4e\xde\x02\x49\x07\xe5\x09\x77\x22\x8d\xf4\xd3\xa6\xa4\x28\x88\x6f\xb2\x4f\x9a\xa1\x53\x66\xbc\xae\x6e\xbb\x17\x51\x40\x2b\x9f\x34\xa3\x85\x40\xc0\x92\x93\x04\x7f\xe9\x43\x73\xc1\x7a\x9c\xcc\xff\x1a\x1d\xe3\x22\xef\xc3\xfe\x33\x48\x01\xaa\x76\x44\x4d\xd0\xd4\xc0\x17\xfe\xb9\xd4\x53\xeb\x35\xf2\x1e\xfe\x33\x2e\xd9\xae\x75\x57\x1c\xa5\x77\x8e\xb4\xb6\x9d\x94\xf7\x69\xdb\xf0\x8c\xaf\xa0\x7a\x7f\x42\xf1\x2f\x8f\x2a\x9e\x3e\xb6\x97\x6e\x01\x62\xc3\xf2\x34\x51\xd9\x74\xc8\x7f\x60\x63\xbd\x31\xdb\x13\x85\x81\x1b\x55\x4c\x85\x50\xba\x51\x30\xf8\x8d\x79\x7a\x8b\xab\x3e\x01\xb2\x1e\x5f\xeb\xd2\xb0\xf6\x6e\x8f\x58\x42\xc1\x04\x10\x74\x28\x42\x3a\x8c\x8d\x39\x4c\x5e\x19\xea\x71\x75\x87\xa9\x2f\xe0\x70\xe5\xb4\x9e\xc4\xaf\x4b\xc6\x32\xe2\xf3\xe8\x0f\xa6\x51\x16\xf3\x8e\x12\xd8\xa2\x18\xf4\xf2\x36\x10\x5e\x39\x08\x02\xb3\xf9\x92\x16\x50\xba\x41\x81\x77\xf8\x33\x26\x18\x61\xab\xee\xbf\xae\xc3\x19\x89\x49\x2f\x7f\x02\xd1\xb0\x62\x16\x9d\x3b\xee\x9a\xa3\x99\xd3\xdf\xa9\xf9\x8d\x48\x29\xe9\x8f\xe7\x67\x23\x6f\x5d\xd9\x81\x09\x43\x9d\x31\x99\x9c\x03\x51\x9e\xa3\x8d\xe2\x5b\x3f\xe3\x8b\x42\x0f\xbe\x45\x52\xe9\xad\xed\xb3\x07\xfd\xff\xc9\x8e\xa4\x58\x6d\x60\xee\x31\x33\x28\xc5\xb6\xc3\xff\x50\x4e\xbe\xd2\x8f\x56\x69\x80\x16\xdd\x79\x6b\x9b\x9e\x85\x0d\x79\x18\xd8\xb8", 4096);
                *(uint32_t*)0x10001584 = 0x1000;
                *(uint32_t*)0x100015cc = 1;
                		syscall(SYS_sendfile, (intptr_t)r[0], 0xffffff9c, 8, 0x800ull, 0x100015c0, 0x10001600, 9);
                		break;
                	case 5:
                memcpy((void*)0x10001640, "\x6c\x81\x1b\xa5\x2c\x13\x9b\x40\xdc\x56\x80\xcb\x02\x75\xfd\xd4\x40\x46\x8e\x4d\xae\x07\xc7\x45\xba\x75\x8c\xb2\x66\x74\x2f\x46\x8f\xc4\x2d\xa0\x66\x9f\x60\x61\xcb\x2c\x9f\x92\x1e\x95\x34\x51\xb3\x13\x5e\x01\x74\xfe\x8e\xb1\xae\xbb\x2c\x3e\xb8\xa7\xfb\x3f\xc8\xde\xa1\x8e\x65\x2d\x01\xe7\x18\x4c\xa6\x5d\xce\x04\xf4\x67\x9a\xfe\xd2\x76\x6b\x06\x73\x49\xde\x7a\x5e\xf6\x0b\x58\x69\x92\x91\x9a\x20\x38\x2c\x0a\x1f\x20\xaf\x0c\x9c\x7f\xac\x61\xcf\x18\x38\x3e\x36\xfe\x56\x50\x2f\x5f\x26\xb8", 122);
                		syscall(SYS_ioctl, -1, 0xc0104453, 0x10001640);
                		break;
                	case 6:
                		res = syscall(SYS_freebsd10_pipe, 0x100016c0);
                		if (res != -1) {
                r[1] = *(uint32_t*)0x100016c0;
                r[2] = *(uint32_t*)0x100016c4;
                		}
                		break;
                	case 7:
                *(uint8_t*)0x10001700 = 0x10;
                *(uint8_t*)0x10001701 = 2;
                *(uint16_t*)0x10001702 = htobe16(0x4e23);
                *(uint32_t*)0x10001704 = htobe32(7);
                *(uint8_t*)0x10001708 = 0;
                *(uint8_t*)0x10001709 = 0;
                *(uint8_t*)0x1000170a = 0;
                *(uint8_t*)0x1000170b = 0;
                *(uint8_t*)0x1000170c = 0;
                *(uint8_t*)0x1000170d = 0;
                *(uint8_t*)0x1000170e = 0;
                *(uint8_t*)0x1000170f = 0;
                *(uint32_t*)0x10001740 = 0x10;
                		syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x8002, 0x10001700, 0x10001740);
                		break;
                	case 8:
                *(uint32_t*)0x100017c0 = 4;
                		syscall(SYS_getsockopt, -1, 0x84, 0x20, 0x10001780, 0x100017c0);
                		break;
                	case 9:
                *(uint32_t*)0x10001800 = 8;
                *(uint16_t*)0x10001804 = 0x1000;
                *(uint16_t*)0x10001806 = 0;
                *(uint16_t*)0x10001808 = 0x8000;
                *(uint16_t*)0x1000180a = 0x200;
                *(uint16_t*)0x1000180c = 0x4000;
                *(uint16_t*)0x1000180e = 0;
                *(uint16_t*)0x10001810 = 1;
                *(uint16_t*)0x10001812 = 0;
                *(uint32_t*)0x10001840 = 0x14;
                		syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x14, 0x10001800, 0x10001840);
                		break;
                	case 10:
                memcpy((void*)0x10000000, "\xc9\x0c\x8a\x7c\x33\x7f", 6);
                *(uint8_t*)0x10000006 = 0xaa;
                *(uint8_t*)0x10000007 = 0xaa;
                *(uint8_t*)0x10000008 = 0xaa;
                *(uint8_t*)0x10000009 = 0xaa;
                *(uint8_t*)0x1000000a = 0xaa;
                *(uint8_t*)0x1000000b = 0xaa;
                *(uint16_t*)0x1000000c = htobe16(0x8100);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 0, 3);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 3, 1);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 4, 12);
                *(uint16_t*)0x10000010 = htobe16(0x800);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 0x1c, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 4, 4, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 0, 2);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 2, 6);
                *(uint16_t*)0x10000014 = htobe16(0x81);
                *(uint16_t*)0x10000016 = htobe16(0x65);
                *(uint16_t*)0x10000018 = htobe16(5);
                *(uint8_t*)0x1000001a = 1;
                *(uint8_t*)0x1000001b = 0x46;
                *(uint16_t*)0x1000001c = htobe16(0);
                *(uint32_t*)0x1000001e = htobe32(-1);
                *(uint8_t*)0x10000022 = 0xac;
                *(uint8_t*)0x10000023 = 0x14;
                *(uint8_t*)0x10000024 = 0;
                *(uint8_t*)0x10000025 = 0xbb;
                *(uint8_t*)0x10000026 = 0;
                *(uint8_t*)0x10000027 = 0x44;
                *(uint8_t*)0x10000028 = 0xc;
                *(uint8_t*)0x10000029 = 5;
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 0, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 3, 4, 4);
                *(uint32_t*)0x1000002b = htobe32(9);
                *(uint32_t*)0x1000002f = htobe32(4);
                *(uint8_t*)0x10000033 = 0x83;
                *(uint8_t*)0x10000034 = 0xb;
                *(uint8_t*)0x10000035 = 6;
                *(uint32_t*)0x10000036 = htobe32(0xe0000001);
                *(uint32_t*)0x1000003a = htobe32(-1);
                *(uint8_t*)0x1000003e = 0;
                *(uint8_t*)0x1000003f = 4;
                memcpy((void*)0x10000040, "\xa4\xd4", 2);
                *(uint8_t*)0x10000042 = 0x89;
                *(uint8_t*)0x10000043 = 0x13;
                *(uint8_t*)0x10000044 = 4;
                *(uint8_t*)0x10000045 = 0xac;
                *(uint8_t*)0x10000046 = 0x14;
                *(uint8_t*)0x10000047 = 0;
                *(uint8_t*)0x10000048 = 0xbb;
                *(uint32_t*)0x10000049 = htobe32(-1);
                *(uint8_t*)0x1000004d = 0xac;
                *(uint8_t*)0x1000004e = 0x14;
                *(uint8_t*)0x1000004f = 0;
                *(uint8_t*)0x10000050 = 0xbb;
                *(uint32_t*)0x10000051 = htobe32(0);
                *(uint8_t*)0x10000055 = 0x94;
                *(uint8_t*)0x10000056 = 6;
                *(uint32_t*)0x10000057 = htobe32(9);
                *(uint8_t*)0x1000005b = 0x94;
                *(uint8_t*)0x1000005c = 6;
                *(uint32_t*)0x1000005d = htobe32(0x80000001);
                *(uint8_t*)0x10000061 = 1;
                *(uint8_t*)0x10000062 = 0x83;
                *(uint8_t*)0x10000063 = 0x1f;
                *(uint8_t*)0x10000064 = 2;
                *(uint32_t*)0x10000065 = htobe32(0xe0000002);
                *(uint32_t*)0x10000069 = htobe32(0xe0000001);
                *(uint32_t*)0x1000006d = htobe32(0x7f000001);
                *(uint32_t*)0x10000071 = htobe32(0);
                *(uint32_t*)0x10000075 = htobe32(0x7f000001);
                *(uint32_t*)0x10000079 = htobe32(0x7f000001);
                *(uint32_t*)0x1000007d = htobe32(0xe0000001);
                memcpy((void*)0x10000082, "\x8d\x86\x2d\x09\x9b\x6b\xb2\xba\x6a\xea\xa6\xab\xd3\xe9\xd5\x82\xc9", 17);
                		struct csum_inet csum_1;
                		csum_inet_init(&csum_1);
                csum_inet_update(&csum_1, (const uint8_t*)0x10000012, 112);
                *(uint16_t*)0x1000001c = csum_inet_digest(&csum_1);
                		break;
                	case 11:
                memcpy((void*)0x100000c0, "\xc4\xe1\xf5\xf3\x7b\x05\xc4\xc2\xf5\x47\x52\x5a\x80\x8f\x4e\x00\x00\x00\x00\x66\x0f\x38\x1d\xbc\x60\x07\x00\x00\x00\xc4\xe2\xad\x91\x74\xae\x7e\x81\xfe\x00\x00\x00\x00\x8f\xe9\xa0\x99\xd8\xe4\xff\xc4\xc1\x93\x5c\x17\xc4\xc3\xe1\x41\xae\x2f\x10\x9d\xc2\xd8", 64);
                syz_execute_func(0x100000c0);
                		break;
                	case 12:
                		break;
                	}
                
                }
                int main(void)
                {
                		syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
                			use_temporary_dir();
                			do_sandbox_none();
                	return 0;
                }
                
                <stdin>:362:17: error: use of undeclared identifier 'SYS_shm_open2'
                                res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                                              ^
                1 error generated.
                
                compiler invocation: clang [-o /tmp/syz-executor414676226 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow]
        --- FAIL: TestGenerate/freebsd/386/0 (1.64s)
            csource_test.go:123: opts: {Threaded:false Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false}
                program:
                setsockopt$inet_opts(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000000)="ec04a904b9d2ea02fab2df1d9de39f3f5aa2344397e186204d39d74da156e7c6cd98195b7b83c652b06b6222bdef3363961bf47e9b530fbf65bae3607b60941e2715bd678fcebc5524bcefd3184d", 0x4e)
                ioctl$DIOCSETIFFLAG(0xffffffffffffffff, 0xc0284459, &(0x7f0000000180)={0x10, &(0x7f0000000080)="de11c2a774191d70f51e7c3e375c2814ac72c2d5d0404a2e3d5baf92161f3b451efe9c4c79d7660668f6073e2f76c5f2145195e8c1a4ec34b6f69c1b582768207b28a979f05adc14a3357fe7c493fc81a9177524631bb209be637f8695747fa7cf1c68ac691f169c1b8fb67d7a3776ddfc620ffbe6831f74d2f2d089a4ffecf510a99702258c58ea9e871d4f4ab9a347aabdbb03585b37b5c79436c0c1160a5876b61bbf0c814bb49a27a36082df13cb2f9de2f942b6ac7e158880cfc03cfdccca9fc0f2347eb543a343b4c92707fe736a86a35d58e26f6fd2e9ec8f82", 0x7, 0x5a764000, 0x6})
                recvfrom$inet6(0xffffffffffffff9c, &(0x7f00000001c0)=""/23, 0x17, 0x2, &(0x7f0000000200)={0x1c, 0x1c, 0x3, 0x6, @loopback, 0x2d99}, 0x1c)
                r0 = shm_open2(&(0x7f0000000240)='./file0\x00', 0x800, 0x0, 0x7, &(0x7f0000000280)='\x00')
                sendfile(r0, 0xffffffffffffff9c, 0x8, 0x800, &(0x7f00000015c0)={&(0x7f0000000540)=[{&(0x7f00000002c0)="efacade58ab0192351a102ada32ad1f41e429edf6c4a513ac6d669cadb222eb68297ab8f9f7b3234d0c6cfa280ad14dc1c4c34175119446d79a030d48b57304eb90b428c202382d86cd71e9c1ecc8d3e2d764aae3714cb591eb027e46943e23eb7656875867e603cf13892a74c42bb1844c27f7f454f9661f1dbb35004ada4d6d75b1df342e967493d207d6b8b4edcbf9d1e378445573684ed139b671abf6576edf8d7342cd8649d376970acbde224a7b0b6a975a8ba0a768ed6abe16c1b694f65dd4231f48c2884", 0xc8}, {&(0x7f00000003c0)="a6e4fe186c760ac2ebbcf9efda5e22e2df6f153fccda1c16976037d03ee004c3fbba5d35b6c083130fc705f95889ba6adbe5e3a7a5e70136a0ca085b7e504d0df55fe184a9bd7a82", 0x48}, {&(0x7f0000000440)="c7e00030b3c4541743ee6513", 0xc}, {&(0x7f0000000480)="a4a67a4e72492b9fab6379e4c0f35b22b69b6e7aefc56beefa857ae28543", 0x1e}, {&(0x7f00000004c0)="8f095f8df1c6bc4dfc1d826f02dfa7794bebf9e7ffc7160f276a53d1abc996fca8c8dbc7c79c09cd5f954775c9e8fc1cf2e0e3c054fb54b662d1b45f5235fdbf860c3fed3dc34ceb30c44baa4ded7de7e9533f4dca146db0db35a93ba654d49011d9cb98d1576b731b9c2bb58c0df4edee6ef5ae1f8b6bc9646f5b4ade4dd52a", 0x80}], 0x5, &(0x7f0000001580)=[{&(0x7f0000000580)="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", 0x1000}], 0x1}, &(0x7f0000001600), 0x9)
                ioctl$DIOCXROLLBACK(0xffffffffffffffff, 0xc0104453, &(0x7f0000001640)="6c811ba52c139b40dc5680cb0275fdd440468e4dae07c745ba758cb266742f468fc42da0669f6061cb2c9f921e953451b3135e0174fe8eb1aebb2c3eb8a7fb3fc8dea18e652d01e7184ca65dce04f4679afed2766b067349de7a5ef60b586992919a20382c0a1f20af0c9c7fac61cf18383e36fe56502f5f26b8")
                freebsd10_pipe(&(0x7f00000016c0)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
                setsockopt$inet6_sctp_SCTP_BINDX_REM_ADDR(r2, 0x84, 0x8002, &(0x7f0000001700)=@in={0x10, 0x2, 0x3, @rand_addr=0x7}, &(0x7f0000001740)=0x10)
                getsockopt$inet6_sctp_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000001780), &(0x7f00000017c0)=0x4)
                getsockopt$inet6_sctp_SCTP_HMAC_IDENT(r1, 0x84, 0x14, &(0x7f0000001800)={0x8, [0x1000, 0x0, 0x8000, 0x200, 0x4000, 0x0, 0x1, 0x0]}, &(0x7f0000001840)=0x14)
                syz_emit_ethernet(0x93, &(0x7f0000000000)={@random="c90c8a7c337f", @local, [{}], {@ipv4={0x800, {{0x1c, 0x4, 0x0, 0x0, 0x81, 0x65, 0x5, 0x1, 0x46, 0x0, @broadcast, @remote={0xac, 0x14, 0x0}, {[@end, @timestamp={0x44, 0xc, 0x5, 0x0, 0x3, [{[], 0x9}, {[], 0x4}]}, @lsrr={0x83, 0xb, 0x6, [@multicast1, @broadcast]}, @generic={0x0, 0x4, "a4d4"}, @ssrr={0x89, 0x13, 0x4, [@remote={0xac, 0x14, 0x0}, @broadcast, @remote={0xac, 0x14, 0x0}, @empty]}, @ra={0x94, 0x6, 0x9}, @ra={0x94, 0x6, 0x80000001}, @noop, @lsrr={0x83, 0x1f, 0x2, [@multicast2, @multicast1, @loopback, @empty, @loopback, @loopback, @multicast1]}]}}, @generic="8d862d099b6bb2ba6aeaa6abd3e9d582c9"}}}})
                syz_execute_func(&(0x7f00000000c0)="c4e1f5f37b05c4c2f547525a808f4e00000000660f381dbc6007000000c4e2ad9174ae7e81fe000000008fe9a099d8e4ffc4c1935c17c4c3e141ae2f109dc2d8")
                syz_extract_tcp_res(&(0x7f0000000100), 0x5, 0x7ff)
                
            csource_test.go:124: failed to build program:
                // autogenerated by syzkaller (https://github.com/google/syzkaller)
                
                #define _GNU_SOURCE 
                
                #include <sys/types.h>
                
                #include <dirent.h>
                #include <errno.h>
                #include <pwd.h>
                #include <signal.h>
                #include <stdarg.h>
                #include <stdbool.h>
                #include <stdint.h>
                #include <stdio.h>
                #include <stdlib.h>
                #include <string.h>
                #include <sys/endian.h>
                #include <sys/resource.h>
                #include <sys/stat.h>
                #include <sys/syscall.h>
                #include <sys/wait.h>
                #include <time.h>
                #include <unistd.h>
                
                static void kill_and_wait(int pid, int* status)
                {
                	kill(pid, SIGKILL);
                	while (waitpid(-1, status, 0) != pid) {
                	}
                }
                
                static void sleep_ms(uint64_t ms)
                {
                	usleep(ms * 1000);
                }
                
                static uint64_t current_time_ms(void)
                {
                	struct timespec ts;
                	if (clock_gettime(CLOCK_MONOTONIC, &ts))
                	exit(1);
                	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
                }
                
                static void use_temporary_dir(void)
                {
                	char tmpdir_template[] = "./syzkaller.XXXXXX";
                	char* tmpdir = mkdtemp(tmpdir_template);
                	if (!tmpdir)
                	exit(1);
                	if (chmod(tmpdir, 0777))
                	exit(1);
                	if (chdir(tmpdir))
                	exit(1);
                }
                
                static void __attribute__((noinline)) remove_dir(const char* dir)
                {
                	DIR* dp = opendir(dir);
                	if (dp == NULL) {
                		if (errno == EACCES) {
                			if (rmdir(dir))
                	exit(1);
                			return;
                		}
                	exit(1);
                	}
                	struct dirent* ep = 0;
                	while ((ep = readdir(dp))) {
                		if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
                			continue;
                		char filename[FILENAME_MAX];
                		snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
                		struct stat st;
                		if (lstat(filename, &st))
                	exit(1);
                		if (S_ISDIR(st.st_mode)) {
                			remove_dir(filename);
                			continue;
                		}
                		if (unlink(filename))
                	exit(1);
                	}
                	closedir(dp);
                	if (rmdir(dir))
                	exit(1);
                }
                
                #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
                #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
                
                struct csum_inet {
                	uint32_t acc;
                };
                
                static void csum_inet_init(struct csum_inet* csum)
                {
                	csum->acc = 0;
                }
                
                static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
                {
                	if (length == 0)
                		return;
                	size_t i = 0;
                	for (; i < length - 1; i += 2)
                		csum->acc += *(uint16_t*)&data[i];
                	if (length & 1)
                		csum->acc += le16toh((uint16_t)data[length - 1]);
                	while (csum->acc > 0xffff)
                		csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
                }
                
                static uint16_t csum_inet_digest(struct csum_inet* csum)
                {
                	return ~csum->acc;
                }
                
                static void sandbox_common()
                {
                	if (setsid() == -1)
                	exit(1);
                	struct rlimit rlim;
                	rlim.rlim_cur = rlim.rlim_max = 128 << 20;
                	setrlimit(RLIMIT_AS, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 8 << 20;
                	setrlimit(RLIMIT_MEMLOCK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_FSIZE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_STACK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 0;
                	setrlimit(RLIMIT_CORE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 256;
                	setrlimit(RLIMIT_NOFILE, &rlim);
                }
                
                static void loop();
                
                static int do_sandbox_none(void)
                {
                	sandbox_common();
                	loop();
                	return 0;
                }
                
                static long syz_execute_func(volatile long text)
                {
                	((void (*)(void))(text))();
                	return 0;
                }
                
                static void execute_one(void);
                
                #define WAIT_FLAGS 0
                
                static void loop(void)
                {
                	int iter = 0;
                	for (;; iter++) {
                		char cwdbuf[32];
                		sprintf(cwdbuf, "./%d", iter);
                		if (mkdir(cwdbuf, 0777))
                	exit(1);
                		int pid = fork();
                		if (pid < 0)
                	exit(1);
                		if (pid == 0) {
                			if (chdir(cwdbuf))
                	exit(1);
                			execute_one();
                			exit(0);
                		}
                		int status = 0;
                		uint64_t start = current_time_ms();
                		for (;;) {
                			if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
                				break;
                			sleep_ms(1);
                			if (current_time_ms() - start < 5 * 1000)
                				continue;
                			kill_and_wait(pid, &status);
                			break;
                		}
                		remove_dir(cwdbuf);
                	}
                }
                
                uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
                
                void execute_one(void)
                {
                		intptr_t res = 0;
                memcpy((void*)0x10000000, "\xec\x04\xa9\x04\xb9\xd2\xea\x02\xfa\xb2\xdf\x1d\x9d\xe3\x9f\x3f\x5a\xa2\x34\x43\x97\xe1\x86\x20\x4d\x39\xd7\x4d\xa1\x56\xe7\xc6\xcd\x98\x19\x5b\x7b\x83\xc6\x52\xb0\x6b\x62\x22\xbd\xef\x33\x63\x96\x1b\xf4\x7e\x9b\x53\x0f\xbf\x65\xba\xe3\x60\x7b\x60\x94\x1e\x27\x15\xbd\x67\x8f\xce\xbc\x55\x24\xbc\xef\xd3\x18\x4d", 78);
                	syscall(SYS_setsockopt, 0xffffff9c, 0, 0, 0x10000000, 0x4e);
                *(uint8_t*)0x10000180 = 0x10;
                *(uint32_t*)0x10000184 = 0x10000080;
                memcpy((void*)0x10000080, "\xde\x11\xc2\xa7\x74\x19\x1d\x70\xf5\x1e\x7c\x3e\x37\x5c\x28\x14\xac\x72\xc2\xd5\xd0\x40\x4a\x2e\x3d\x5b\xaf\x92\x16\x1f\x3b\x45\x1e\xfe\x9c\x4c\x79\xd7\x66\x06\x68\xf6\x07\x3e\x2f\x76\xc5\xf2\x14\x51\x95\xe8\xc1\xa4\xec\x34\xb6\xf6\x9c\x1b\x58\x27\x68\x20\x7b\x28\xa9\x79\xf0\x5a\xdc\x14\xa3\x35\x7f\xe7\xc4\x93\xfc\x81\xa9\x17\x75\x24\x63\x1b\xb2\x09\xbe\x63\x7f\x86\x95\x74\x7f\xa7\xcf\x1c\x68\xac\x69\x1f\x16\x9c\x1b\x8f\xb6\x7d\x7a\x37\x76\xdd\xfc\x62\x0f\xfb\xe6\x83\x1f\x74\xd2\xf2\xd0\x89\xa4\xff\xec\xf5\x10\xa9\x97\x02\x25\x8c\x58\xea\x9e\x87\x1d\x4f\x4a\xb9\xa3\x47\xaa\xbd\xbb\x03\x58\x5b\x37\xb5\xc7\x94\x36\xc0\xc1\x16\x0a\x58\x76\xb6\x1b\xbf\x0c\x81\x4b\xb4\x9a\x27\xa3\x60\x82\xdf\x13\xcb\x2f\x9d\xe2\xf9\x42\xb6\xac\x7e\x15\x88\x80\xcf\xc0\x3c\xfd\xcc\xca\x9f\xc0\xf2\x34\x7e\xb5\x43\xa3\x43\xb4\xc9\x27\x07\xfe\x73\x6a\x86\xa3\x5d\x58\xe2\x6f\x6f\xd2\xe9\xec\x8f\x82", 221);
                *(uint32_t*)0x10000188 = 7;
                *(uint32_t*)0x1000018c = 0x5a764000;
                *(uint32_t*)0x10000190 = 6;
                	syscall(SYS_ioctl, -1, 0xc0284459, 0x10000180);
                *(uint8_t*)0x10000200 = 0x1c;
                *(uint8_t*)0x10000201 = 0x1c;
                *(uint16_t*)0x10000202 = htobe16(0x4e23);
                *(uint32_t*)0x10000204 = 6;
                *(uint64_t*)0x10000208 = htobe64(0);
                *(uint64_t*)0x10000210 = htobe64(1);
                *(uint32_t*)0x10000218 = 0x2d99;
                	syscall(SYS_recvfrom, 0xffffff9c, 0x100001c0, 0x17, 2, 0x10000200, 0x1c);
                memcpy((void*)0x10000240, "./file0\000", 8);
                memcpy((void*)0x10000280, "\000", 1);
                	res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                	if (res != -1)
                		r[0] = res;
                *(uint32_t*)0x100015c0 = 0x10000540;
                *(uint32_t*)0x10000540 = 0x100002c0;
                memcpy((void*)0x100002c0, "\xef\xac\xad\xe5\x8a\xb0\x19\x23\x51\xa1\x02\xad\xa3\x2a\xd1\xf4\x1e\x42\x9e\xdf\x6c\x4a\x51\x3a\xc6\xd6\x69\xca\xdb\x22\x2e\xb6\x82\x97\xab\x8f\x9f\x7b\x32\x34\xd0\xc6\xcf\xa2\x80\xad\x14\xdc\x1c\x4c\x34\x17\x51\x19\x44\x6d\x79\xa0\x30\xd4\x8b\x57\x30\x4e\xb9\x0b\x42\x8c\x20\x23\x82\xd8\x6c\xd7\x1e\x9c\x1e\xcc\x8d\x3e\x2d\x76\x4a\xae\x37\x14\xcb\x59\x1e\xb0\x27\xe4\x69\x43\xe2\x3e\xb7\x65\x68\x75\x86\x7e\x60\x3c\xf1\x38\x92\xa7\x4c\x42\xbb\x18\x44\xc2\x7f\x7f\x45\x4f\x96\x61\xf1\xdb\xb3\x50\x04\xad\xa4\xd6\xd7\x5b\x1d\xf3\x42\xe9\x67\x49\x3d\x20\x7d\x6b\x8b\x4e\xdc\xbf\x9d\x1e\x37\x84\x45\x57\x36\x84\xed\x13\x9b\x67\x1a\xbf\x65\x76\xed\xf8\xd7\x34\x2c\xd8\x64\x9d\x37\x69\x70\xac\xbd\xe2\x24\xa7\xb0\xb6\xa9\x75\xa8\xba\x0a\x76\x8e\xd6\xab\xe1\x6c\x1b\x69\x4f\x65\xdd\x42\x31\xf4\x8c\x28\x84", 200);
                *(uint32_t*)0x10000544 = 0xc8;
                *(uint32_t*)0x10000548 = 0x100003c0;
                memcpy((void*)0x100003c0, "\xa6\xe4\xfe\x18\x6c\x76\x0a\xc2\xeb\xbc\xf9\xef\xda\x5e\x22\xe2\xdf\x6f\x15\x3f\xcc\xda\x1c\x16\x97\x60\x37\xd0\x3e\xe0\x04\xc3\xfb\xba\x5d\x35\xb6\xc0\x83\x13\x0f\xc7\x05\xf9\x58\x89\xba\x6a\xdb\xe5\xe3\xa7\xa5\xe7\x01\x36\xa0\xca\x08\x5b\x7e\x50\x4d\x0d\xf5\x5f\xe1\x84\xa9\xbd\x7a\x82", 72);
                *(uint32_t*)0x1000054c = 0x48;
                *(uint32_t*)0x10000550 = 0x10000440;
                memcpy((void*)0x10000440, "\xc7\xe0\x00\x30\xb3\xc4\x54\x17\x43\xee\x65\x13", 12);
                *(uint32_t*)0x10000554 = 0xc;
                *(uint32_t*)0x10000558 = 0x10000480;
                memcpy((void*)0x10000480, "\xa4\xa6\x7a\x4e\x72\x49\x2b\x9f\xab\x63\x79\xe4\xc0\xf3\x5b\x22\xb6\x9b\x6e\x7a\xef\xc5\x6b\xee\xfa\x85\x7a\xe2\x85\x43", 30);
                *(uint32_t*)0x1000055c = 0x1e;
                *(uint32_t*)0x10000560 = 0x100004c0;
                memcpy((void*)0x100004c0, "\x8f\x09\x5f\x8d\xf1\xc6\xbc\x4d\xfc\x1d\x82\x6f\x02\xdf\xa7\x79\x4b\xeb\xf9\xe7\xff\xc7\x16\x0f\x27\x6a\x53\xd1\xab\xc9\x96\xfc\xa8\xc8\xdb\xc7\xc7\x9c\x09\xcd\x5f\x95\x47\x75\xc9\xe8\xfc\x1c\xf2\xe0\xe3\xc0\x54\xfb\x54\xb6\x62\xd1\xb4\x5f\x52\x35\xfd\xbf\x86\x0c\x3f\xed\x3d\xc3\x4c\xeb\x30\xc4\x4b\xaa\x4d\xed\x7d\xe7\xe9\x53\x3f\x4d\xca\x14\x6d\xb0\xdb\x35\xa9\x3b\xa6\x54\xd4\x90\x11\xd9\xcb\x98\xd1\x57\x6b\x73\x1b\x9c\x2b\xb5\x8c\x0d\xf4\xed\xee\x6e\xf5\xae\x1f\x8b\x6b\xc9\x64\x6f\x5b\x4a\xde\x4d\xd5\x2a", 128);
                *(uint32_t*)0x10000564 = 0x80;
                *(uint32_t*)0x100015c4 = 5;
                *(uint32_t*)0x100015c8 = 0x10001580;
                *(uint32_t*)0x10001580 = 0x10000580;
                memcpy((void*)0x10000580, 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4096);
                *(uint32_t*)0x10001584 = 0x1000;
                *(uint32_t*)0x100015cc = 1;
                	syscall(SYS_sendfile, (intptr_t)r[0], 0xffffff9c, 8, 0x800ull, 0x100015c0, 0x10001600, 9);
                memcpy((void*)0x10001640, "\x6c\x81\x1b\xa5\x2c\x13\x9b\x40\xdc\x56\x80\xcb\x02\x75\xfd\xd4\x40\x46\x8e\x4d\xae\x07\xc7\x45\xba\x75\x8c\xb2\x66\x74\x2f\x46\x8f\xc4\x2d\xa0\x66\x9f\x60\x61\xcb\x2c\x9f\x92\x1e\x95\x34\x51\xb3\x13\x5e\x01\x74\xfe\x8e\xb1\xae\xbb\x2c\x3e\xb8\xa7\xfb\x3f\xc8\xde\xa1\x8e\x65\x2d\x01\xe7\x18\x4c\xa6\x5d\xce\x04\xf4\x67\x9a\xfe\xd2\x76\x6b\x06\x73\x49\xde\x7a\x5e\xf6\x0b\x58\x69\x92\x91\x9a\x20\x38\x2c\x0a\x1f\x20\xaf\x0c\x9c\x7f\xac\x61\xcf\x18\x38\x3e\x36\xfe\x56\x50\x2f\x5f\x26\xb8", 122);
                	syscall(SYS_ioctl, -1, 0xc0104453, 0x10001640);
                	res = syscall(SYS_freebsd10_pipe, 0x100016c0);
                	if (res != -1) {
                r[1] = *(uint32_t*)0x100016c0;
                r[2] = *(uint32_t*)0x100016c4;
                	}
                *(uint8_t*)0x10001700 = 0x10;
                *(uint8_t*)0x10001701 = 2;
                *(uint16_t*)0x10001702 = htobe16(0x4e23);
                *(uint32_t*)0x10001704 = htobe32(7);
                *(uint8_t*)0x10001708 = 0;
                *(uint8_t*)0x10001709 = 0;
                *(uint8_t*)0x1000170a = 0;
                *(uint8_t*)0x1000170b = 0;
                *(uint8_t*)0x1000170c = 0;
                *(uint8_t*)0x1000170d = 0;
                *(uint8_t*)0x1000170e = 0;
                *(uint8_t*)0x1000170f = 0;
                *(uint32_t*)0x10001740 = 0x10;
                	syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x8002, 0x10001700, 0x10001740);
                *(uint32_t*)0x100017c0 = 4;
                	syscall(SYS_getsockopt, -1, 0x84, 0x20, 0x10001780, 0x100017c0);
                *(uint32_t*)0x10001800 = 8;
                *(uint16_t*)0x10001804 = 0x1000;
                *(uint16_t*)0x10001806 = 0;
                *(uint16_t*)0x10001808 = 0x8000;
                *(uint16_t*)0x1000180a = 0x200;
                *(uint16_t*)0x1000180c = 0x4000;
                *(uint16_t*)0x1000180e = 0;
                *(uint16_t*)0x10001810 = 1;
                *(uint16_t*)0x10001812 = 0;
                *(uint32_t*)0x10001840 = 0x14;
                	syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x14, 0x10001800, 0x10001840);
                memcpy((void*)0x10000000, "\xc9\x0c\x8a\x7c\x33\x7f", 6);
                *(uint8_t*)0x10000006 = 0xaa;
                *(uint8_t*)0x10000007 = 0xaa;
                *(uint8_t*)0x10000008 = 0xaa;
                *(uint8_t*)0x10000009 = 0xaa;
                *(uint8_t*)0x1000000a = 0xaa;
                *(uint8_t*)0x1000000b = 0xaa;
                *(uint16_t*)0x1000000c = htobe16(0x8100);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 0, 3);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 3, 1);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 4, 12);
                *(uint16_t*)0x10000010 = htobe16(0x800);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 0x1c, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 4, 4, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 0, 2);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 2, 6);
                *(uint16_t*)0x10000014 = htobe16(0x81);
                *(uint16_t*)0x10000016 = htobe16(0x65);
                *(uint16_t*)0x10000018 = htobe16(5);
                *(uint8_t*)0x1000001a = 1;
                *(uint8_t*)0x1000001b = 0x46;
                *(uint16_t*)0x1000001c = htobe16(0);
                *(uint32_t*)0x1000001e = htobe32(-1);
                *(uint8_t*)0x10000022 = 0xac;
                *(uint8_t*)0x10000023 = 0x14;
                *(uint8_t*)0x10000024 = 0;
                *(uint8_t*)0x10000025 = 0xbb;
                *(uint8_t*)0x10000026 = 0;
                *(uint8_t*)0x10000027 = 0x44;
                *(uint8_t*)0x10000028 = 0xc;
                *(uint8_t*)0x10000029 = 5;
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 0, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 3, 4, 4);
                *(uint32_t*)0x1000002b = htobe32(9);
                *(uint32_t*)0x1000002f = htobe32(4);
                *(uint8_t*)0x10000033 = 0x83;
                *(uint8_t*)0x10000034 = 0xb;
                *(uint8_t*)0x10000035 = 6;
                *(uint32_t*)0x10000036 = htobe32(0xe0000001);
                *(uint32_t*)0x1000003a = htobe32(-1);
                *(uint8_t*)0x1000003e = 0;
                *(uint8_t*)0x1000003f = 4;
                memcpy((void*)0x10000040, "\xa4\xd4", 2);
                *(uint8_t*)0x10000042 = 0x89;
                *(uint8_t*)0x10000043 = 0x13;
                *(uint8_t*)0x10000044 = 4;
                *(uint8_t*)0x10000045 = 0xac;
                *(uint8_t*)0x10000046 = 0x14;
                *(uint8_t*)0x10000047 = 0;
                *(uint8_t*)0x10000048 = 0xbb;
                *(uint32_t*)0x10000049 = htobe32(-1);
                *(uint8_t*)0x1000004d = 0xac;
                *(uint8_t*)0x1000004e = 0x14;
                *(uint8_t*)0x1000004f = 0;
                *(uint8_t*)0x10000050 = 0xbb;
                *(uint32_t*)0x10000051 = htobe32(0);
                *(uint8_t*)0x10000055 = 0x94;
                *(uint8_t*)0x10000056 = 6;
                *(uint32_t*)0x10000057 = htobe32(9);
                *(uint8_t*)0x1000005b = 0x94;
                *(uint8_t*)0x1000005c = 6;
                *(uint32_t*)0x1000005d = htobe32(0x80000001);
                *(uint8_t*)0x10000061 = 1;
                *(uint8_t*)0x10000062 = 0x83;
                *(uint8_t*)0x10000063 = 0x1f;
                *(uint8_t*)0x10000064 = 2;
                *(uint32_t*)0x10000065 = htobe32(0xe0000002);
                *(uint32_t*)0x10000069 = htobe32(0xe0000001);
                *(uint32_t*)0x1000006d = htobe32(0x7f000001);
                *(uint32_t*)0x10000071 = htobe32(0);
                *(uint32_t*)0x10000075 = htobe32(0x7f000001);
                *(uint32_t*)0x10000079 = htobe32(0x7f000001);
                *(uint32_t*)0x1000007d = htobe32(0xe0000001);
                memcpy((void*)0x10000082, "\x8d\x86\x2d\x09\x9b\x6b\xb2\xba\x6a\xea\xa6\xab\xd3\xe9\xd5\x82\xc9", 17);
                	struct csum_inet csum_1;
                	csum_inet_init(&csum_1);
                csum_inet_update(&csum_1, (const uint8_t*)0x10000012, 112);
                *(uint16_t*)0x1000001c = csum_inet_digest(&csum_1);
                memcpy((void*)0x100000c0, "\xc4\xe1\xf5\xf3\x7b\x05\xc4\xc2\xf5\x47\x52\x5a\x80\x8f\x4e\x00\x00\x00\x00\x66\x0f\x38\x1d\xbc\x60\x07\x00\x00\x00\xc4\xe2\xad\x91\x74\xae\x7e\x81\xfe\x00\x00\x00\x00\x8f\xe9\xa0\x99\xd8\xe4\xff\xc4\xc1\x93\x5c\x17\xc4\xc3\xe1\x41\xae\x2f\x10\x9d\xc2\xd8", 64);
                syz_execute_func(0x100000c0);
                
                }
                int main(void)
                {
                		syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
                			use_temporary_dir();
                			do_sandbox_none();
                	return 0;
                }
                
                <stdin>:213:16: error: use of undeclared identifier 'SYS_shm_open2'
                        res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                                      ^
                1 error generated.
                
                compiler invocation: clang [-o /tmp/syz-executor268348537 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow]
        --- FAIL: TestGenerate/freebsd/386/13 (1.57s)
            csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:true}
                program:
                setsockopt$inet_opts(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000000)="ec04a904b9d2ea02fab2df1d9de39f3f5aa2344397e186204d39d74da156e7c6cd98195b7b83c652b06b6222bdef3363961bf47e9b530fbf65bae3607b60941e2715bd678fcebc5524bcefd3184d", 0x4e)
                ioctl$DIOCSETIFFLAG(0xffffffffffffffff, 0xc0284459, &(0x7f0000000180)={0x10, &(0x7f0000000080)="de11c2a774191d70f51e7c3e375c2814ac72c2d5d0404a2e3d5baf92161f3b451efe9c4c79d7660668f6073e2f76c5f2145195e8c1a4ec34b6f69c1b582768207b28a979f05adc14a3357fe7c493fc81a9177524631bb209be637f8695747fa7cf1c68ac691f169c1b8fb67d7a3776ddfc620ffbe6831f74d2f2d089a4ffecf510a99702258c58ea9e871d4f4ab9a347aabdbb03585b37b5c79436c0c1160a5876b61bbf0c814bb49a27a36082df13cb2f9de2f942b6ac7e158880cfc03cfdccca9fc0f2347eb543a343b4c92707fe736a86a35d58e26f6fd2e9ec8f82", 0x7, 0x5a764000, 0x6})
                recvfrom$inet6(0xffffffffffffff9c, &(0x7f00000001c0)=""/23, 0x17, 0x2, &(0x7f0000000200)={0x1c, 0x1c, 0x3, 0x6, @loopback, 0x2d99}, 0x1c)
                r0 = shm_open2(&(0x7f0000000240)='./file0\x00', 0x800, 0x0, 0x7, &(0x7f0000000280)='\x00')
                sendfile(r0, 0xffffffffffffff9c, 0x8, 0x800, &(0x7f00000015c0)={&(0x7f0000000540)=[{&(0x7f00000002c0)="efacade58ab0192351a102ada32ad1f41e429edf6c4a513ac6d669cadb222eb68297ab8f9f7b3234d0c6cfa280ad14dc1c4c34175119446d79a030d48b57304eb90b428c202382d86cd71e9c1ecc8d3e2d764aae3714cb591eb027e46943e23eb7656875867e603cf13892a74c42bb1844c27f7f454f9661f1dbb35004ada4d6d75b1df342e967493d207d6b8b4edcbf9d1e378445573684ed139b671abf6576edf8d7342cd8649d376970acbde224a7b0b6a975a8ba0a768ed6abe16c1b694f65dd4231f48c2884", 0xc8}, {&(0x7f00000003c0)="a6e4fe186c760ac2ebbcf9efda5e22e2df6f153fccda1c16976037d03ee004c3fbba5d35b6c083130fc705f95889ba6adbe5e3a7a5e70136a0ca085b7e504d0df55fe184a9bd7a82", 0x48}, {&(0x7f0000000440)="c7e00030b3c4541743ee6513", 0xc}, {&(0x7f0000000480)="a4a67a4e72492b9fab6379e4c0f35b22b69b6e7aefc56beefa857ae28543", 0x1e}, {&(0x7f00000004c0)="8f095f8df1c6bc4dfc1d826f02dfa7794bebf9e7ffc7160f276a53d1abc996fca8c8dbc7c79c09cd5f954775c9e8fc1cf2e0e3c054fb54b662d1b45f5235fdbf860c3fed3dc34ceb30c44baa4ded7de7e9533f4dca146db0db35a93ba654d49011d9cb98d1576b731b9c2bb58c0df4edee6ef5ae1f8b6bc9646f5b4ade4dd52a", 0x80}], 0x5, &(0x7f0000001580)=[{&(0x7f0000000580)="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", 0x1000}], 0x1}, &(0x7f0000001600), 0x9)
                ioctl$DIOCXROLLBACK(0xffffffffffffffff, 0xc0104453, &(0x7f0000001640)="6c811ba52c139b40dc5680cb0275fdd440468e4dae07c745ba758cb266742f468fc42da0669f6061cb2c9f921e953451b3135e0174fe8eb1aebb2c3eb8a7fb3fc8dea18e652d01e7184ca65dce04f4679afed2766b067349de7a5ef60b586992919a20382c0a1f20af0c9c7fac61cf18383e36fe56502f5f26b8")
                freebsd10_pipe(&(0x7f00000016c0)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
                setsockopt$inet6_sctp_SCTP_BINDX_REM_ADDR(r2, 0x84, 0x8002, &(0x7f0000001700)=@in={0x10, 0x2, 0x3, @rand_addr=0x7}, &(0x7f0000001740)=0x10)
                getsockopt$inet6_sctp_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000001780), &(0x7f00000017c0)=0x4)
                getsockopt$inet6_sctp_SCTP_HMAC_IDENT(r1, 0x84, 0x14, &(0x7f0000001800)={0x8, [0x1000, 0x0, 0x8000, 0x200, 0x4000, 0x0, 0x1, 0x0]}, &(0x7f0000001840)=0x14)
                syz_emit_ethernet(0x93, &(0x7f0000000000)={@random="c90c8a7c337f", @local, [{}], {@ipv4={0x800, {{0x1c, 0x4, 0x0, 0x0, 0x81, 0x65, 0x5, 0x1, 0x46, 0x0, @broadcast, @remote={0xac, 0x14, 0x0}, {[@end, @timestamp={0x44, 0xc, 0x5, 0x0, 0x3, [{[], 0x9}, {[], 0x4}]}, @lsrr={0x83, 0xb, 0x6, [@multicast1, @broadcast]}, @generic={0x0, 0x4, "a4d4"}, @ssrr={0x89, 0x13, 0x4, [@remote={0xac, 0x14, 0x0}, @broadcast, @remote={0xac, 0x14, 0x0}, @empty]}, @ra={0x94, 0x6, 0x9}, @ra={0x94, 0x6, 0x80000001}, @noop, @lsrr={0x83, 0x1f, 0x2, [@multicast2, @multicast1, @loopback, @empty, @loopback, @loopback, @multicast1]}]}}, @generic="8d862d099b6bb2ba6aeaa6abd3e9d582c9"}}}})
                syz_execute_func(&(0x7f00000000c0)="c4e1f5f37b05c4c2f547525a808f4e00000000660f381dbc6007000000c4e2ad9174ae7e81fe000000008fe9a099d8e4ffc4c1935c17c4c3e141ae2f109dc2d8")
                syz_extract_tcp_res(&(0x7f0000000100), 0x5, 0x7ff)
                
            csource_test.go:124: failed to build program:
                // autogenerated by syzkaller (https://github.com/google/syzkaller)
                
                #define _GNU_SOURCE 
                
                #include <sys/types.h>
                
                #include <dirent.h>
                #include <errno.h>
                #include <pthread.h>
                #include <pwd.h>
                #include <signal.h>
                #include <stdarg.h>
                #include <stdbool.h>
                #include <stdint.h>
                #include <stdio.h>
                #include <stdlib.h>
                #include <string.h>
                #include <sys/endian.h>
                #include <sys/resource.h>
                #include <sys/stat.h>
                #include <sys/syscall.h>
                #include <sys/wait.h>
                #include <time.h>
                #include <unistd.h>
                
                static void kill_and_wait(int pid, int* status)
                {
                	kill(pid, SIGKILL);
                	while (waitpid(-1, status, 0) != pid) {
                	}
                }
                
                static void sleep_ms(uint64_t ms)
                {
                	usleep(ms * 1000);
                }
                
                static uint64_t current_time_ms(void)
                {
                	struct timespec ts;
                	if (clock_gettime(CLOCK_MONOTONIC, &ts))
                	exit(1);
                	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
                }
                
                static void use_temporary_dir(void)
                {
                	char tmpdir_template[] = "./syzkaller.XXXXXX";
                	char* tmpdir = mkdtemp(tmpdir_template);
                	if (!tmpdir)
                	exit(1);
                	if (chmod(tmpdir, 0777))
                	exit(1);
                	if (chdir(tmpdir))
                	exit(1);
                }
                
                static void __attribute__((noinline)) remove_dir(const char* dir)
                {
                	DIR* dp = opendir(dir);
                	if (dp == NULL) {
                		if (errno == EACCES) {
                			if (rmdir(dir))
                	exit(1);
                			return;
                		}
                	exit(1);
                	}
                	struct dirent* ep = 0;
                	while ((ep = readdir(dp))) {
                		if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
                			continue;
                		char filename[FILENAME_MAX];
                		snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
                		struct stat st;
                		if (lstat(filename, &st))
                	exit(1);
                		if (S_ISDIR(st.st_mode)) {
                			remove_dir(filename);
                			continue;
                		}
                		if (unlink(filename))
                	exit(1);
                	}
                	closedir(dp);
                	if (rmdir(dir))
                	exit(1);
                }
                
                static void thread_start(void* (*fn)(void*), void* arg)
                {
                	pthread_t th;
                	pthread_attr_t attr;
                	pthread_attr_init(&attr);
                	pthread_attr_setstacksize(&attr, 128 << 10);
                	int i = 0;
                	for (; i < 100; i++) {
                		if (pthread_create(&th, &attr, fn, arg) == 0) {
                			pthread_attr_destroy(&attr);
                			return;
                		}
                		if (errno == EAGAIN) {
                			usleep(50);
                			continue;
                		}
                		break;
                	}
                	exit(1);
                }
                
                typedef struct {
                	pthread_mutex_t mu;
                	pthread_cond_t cv;
                	int state;
                } event_t;
                
                static void event_init(event_t* ev)
                {
                	if (pthread_mutex_init(&ev->mu, 0))
                	exit(1);
                	if (pthread_cond_init(&ev->cv, 0))
                	exit(1);
                	ev->state = 0;
                }
                
                static void event_reset(event_t* ev)
                {
                	ev->state = 0;
                }
                
                static void event_set(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	if (ev->state)
                	exit(1);
                	ev->state = 1;
                	pthread_mutex_unlock(&ev->mu);
                	pthread_cond_broadcast(&ev->cv);
                }
                
                static void event_wait(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	while (!ev->state)
                		pthread_cond_wait(&ev->cv, &ev->mu);
                	pthread_mutex_unlock(&ev->mu);
                }
                
                static int event_isset(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                static int event_timedwait(event_t* ev, uint64_t timeout)
                {
                	uint64_t start = current_time_ms();
                	uint64_t now = start;
                	pthread_mutex_lock(&ev->mu);
                	for (;;) {
                		if (ev->state)
                			break;
                		uint64_t remain = timeout - (now - start);
                		struct timespec ts;
                		ts.tv_sec = remain / 1000;
                		ts.tv_nsec = (remain % 1000) * 1000 * 1000;
                		pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
                		now = current_time_ms();
                		if (now - start > timeout)
                			break;
                	}
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
                #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
                
                struct csum_inet {
                	uint32_t acc;
                };
                
                static void csum_inet_init(struct csum_inet* csum)
                {
                	csum->acc = 0;
                }
                
                static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
                {
                	if (length == 0)
                		return;
                	size_t i = 0;
                	for (; i < length - 1; i += 2)
                		csum->acc += *(uint16_t*)&data[i];
                	if (length & 1)
                		csum->acc += le16toh((uint16_t)data[length - 1]);
                	while (csum->acc > 0xffff)
                		csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
                }
                
                static uint16_t csum_inet_digest(struct csum_inet* csum)
                {
                	return ~csum->acc;
                }
                
                static void sandbox_common()
                {
                	if (setsid() == -1)
                	exit(1);
                	struct rlimit rlim;
                	rlim.rlim_cur = rlim.rlim_max = 128 << 20;
                	setrlimit(RLIMIT_AS, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 8 << 20;
                	setrlimit(RLIMIT_MEMLOCK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_FSIZE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_STACK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 0;
                	setrlimit(RLIMIT_CORE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 256;
                	setrlimit(RLIMIT_NOFILE, &rlim);
                }
                
                static void loop();
                
                static int do_sandbox_none(void)
                {
                	sandbox_common();
                	loop();
                	return 0;
                }
                
                static long syz_execute_func(volatile long text)
                {
                	((void (*)(void))(text))();
                	return 0;
                }
                
                struct thread_t {
                	int created, call;
                	event_t ready, done;
                };
                
                static struct thread_t threads[16];
                static void execute_call(int call);
                static int running;
                
                static void* thr(void* arg)
                {
                	struct thread_t* th = (struct thread_t*)arg;
                	for (;;) {
                		event_wait(&th->ready);
                		event_reset(&th->ready);
                		execute_call(th->call);
                		__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
                		event_set(&th->done);
                	}
                	return 0;
                }
                
                static void execute_one(void)
                {
                	fprintf(stderr, "### start\n");
                	int i, call, thread;
                	for (call = 0; call < 13; call++) {
                		for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
                			struct thread_t* th = &threads[thread];
                			if (!th->created) {
                				th->created = 1;
                				event_init(&th->ready);
                				event_init(&th->done);
                				event_set(&th->done);
                				thread_start(thr, th);
                			}
                			if (!event_isset(&th->done))
                				continue;
                			event_reset(&th->done);
                			th->call = call;
                			__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
                			event_set(&th->ready);
                			event_timedwait(&th->done, 45);
                			break;
                		}
                	}
                	for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
                		sleep_ms(1);
                }
                
                static void execute_one(void);
                
                #define WAIT_FLAGS 0
                
                static void loop(void)
                {
                	int iter = 0;
                	for (;; iter++) {
                		char cwdbuf[32];
                		sprintf(cwdbuf, "./%d", iter);
                		if (mkdir(cwdbuf, 0777))
                	exit(1);
                		int pid = fork();
                		if (pid < 0)
                	exit(1);
                		if (pid == 0) {
                			if (chdir(cwdbuf))
                	exit(1);
                			execute_one();
                			exit(0);
                		}
                		int status = 0;
                		uint64_t start = current_time_ms();
                		for (;;) {
                			if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
                				break;
                			sleep_ms(1);
                			if (current_time_ms() - start < 5 * 1000)
                				continue;
                			kill_and_wait(pid, &status);
                			break;
                		}
                		remove_dir(cwdbuf);
                	}
                }
                
                uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
                
                void execute_call(int call)
                {
                		intptr_t res = 0;
                	switch (call) {
                	case 0:
                memcpy((void*)0x10000000, "\xec\x04\xa9\x04\xb9\xd2\xea\x02\xfa\xb2\xdf\x1d\x9d\xe3\x9f\x3f\x5a\xa2\x34\x43\x97\xe1\x86\x20\x4d\x39\xd7\x4d\xa1\x56\xe7\xc6\xcd\x98\x19\x5b\x7b\x83\xc6\x52\xb0\x6b\x62\x22\xbd\xef\x33\x63\x96\x1b\xf4\x7e\x9b\x53\x0f\xbf\x65\xba\xe3\x60\x7b\x60\x94\x1e\x27\x15\xbd\x67\x8f\xce\xbc\x55\x24\xbc\xef\xd3\x18\x4d", 78);
                		res = syscall(SYS_setsockopt, 0xffffff9c, 0, 0, 0x10000000, 0x4e);
                		fprintf(stderr, "### call=0 errno=%u\n", res == -1 ? errno : 0);
                		break;
                	case 1:
                *(uint8_t*)0x10000180 = 0x10;
                *(uint32_t*)0x10000184 = 0x10000080;
                memcpy((void*)0x10000080, "\xde\x11\xc2\xa7\x74\x19\x1d\x70\xf5\x1e\x7c\x3e\x37\x5c\x28\x14\xac\x72\xc2\xd5\xd0\x40\x4a\x2e\x3d\x5b\xaf\x92\x16\x1f\x3b\x45\x1e\xfe\x9c\x4c\x79\xd7\x66\x06\x68\xf6\x07\x3e\x2f\x76\xc5\xf2\x14\x51\x95\xe8\xc1\xa4\xec\x34\xb6\xf6\x9c\x1b\x58\x27\x68\x20\x7b\x28\xa9\x79\xf0\x5a\xdc\x14\xa3\x35\x7f\xe7\xc4\x93\xfc\x81\xa9\x17\x75\x24\x63\x1b\xb2\x09\xbe\x63\x7f\x86\x95\x74\x7f\xa7\xcf\x1c\x68\xac\x69\x1f\x16\x9c\x1b\x8f\xb6\x7d\x7a\x37\x76\xdd\xfc\x62\x0f\xfb\xe6\x83\x1f\x74\xd2\xf2\xd0\x89\xa4\xff\xec\xf5\x10\xa9\x97\x02\x25\x8c\x58\xea\x9e\x87\x1d\x4f\x4a\xb9\xa3\x47\xaa\xbd\xbb\x03\x58\x5b\x37\xb5\xc7\x94\x36\xc0\xc1\x16\x0a\x58\x76\xb6\x1b\xbf\x0c\x81\x4b\xb4\x9a\x27\xa3\x60\x82\xdf\x13\xcb\x2f\x9d\xe2\xf9\x42\xb6\xac\x7e\x15\x88\x80\xcf\xc0\x3c\xfd\xcc\xca\x9f\xc0\xf2\x34\x7e\xb5\x43\xa3\x43\xb4\xc9\x27\x07\xfe\x73\x6a\x86\xa3\x5d\x58\xe2\x6f\x6f\xd2\xe9\xec\x8f\x82", 221);
                *(uint32_t*)0x10000188 = 7;
                *(uint32_t*)0x1000018c = 0x5a764000;
                *(uint32_t*)0x10000190 = 6;
                		res = syscall(SYS_ioctl, -1, 0xc0284459, 0x10000180);
                		fprintf(stderr, "### call=1 errno=%u\n", res == -1 ? errno : 0);
                		break;
                	case 2:
                *(uint8_t*)0x10000200 = 0x1c;
                *(uint8_t*)0x10000201 = 0x1c;
                *(uint16_t*)0x10000202 = htobe16(0x4e23);
                *(uint32_t*)0x10000204 = 6;
                *(uint64_t*)0x10000208 = htobe64(0);
                *(uint64_t*)0x10000210 = htobe64(1);
                *(uint32_t*)0x10000218 = 0x2d99;
                		res = syscall(SYS_recvfrom, 0xffffff9c, 0x100001c0, 0x17, 2, 0x10000200, 0x1c);
                		fprintf(stderr, "### call=2 errno=%u\n", res == -1 ? errno : 0);
                		break;
                	case 3:
                memcpy((void*)0x10000240, "./file0\000", 8);
                memcpy((void*)0x10000280, "\000", 1);
                		res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                		fprintf(stderr, "### call=3 errno=%u\n", res == -1 ? errno : 0);
                		if (res != -1)
                				r[0] = res;
                		break;
                	case 4:
                *(uint32_t*)0x100015c0 = 0x10000540;
                *(uint32_t*)0x10000540 = 0x100002c0;
                memcpy((void*)0x100002c0, "\xef\xac\xad\xe5\x8a\xb0\x19\x23\x51\xa1\x02\xad\xa3\x2a\xd1\xf4\x1e\x42\x9e\xdf\x6c\x4a\x51\x3a\xc6\xd6\x69\xca\xdb\x22\x2e\xb6\x82\x97\xab\x8f\x9f\x7b\x32\x34\xd0\xc6\xcf\xa2\x80\xad\x14\xdc\x1c\x4c\x34\x17\x51\x19\x44\x6d\x79\xa0\x30\xd4\x8b\x57\x30\x4e\xb9\x0b\x42\x8c\x20\x23\x82\xd8\x6c\xd7\x1e\x9c\x1e\xcc\x8d\x3e\x2d\x76\x4a\xae\x37\x14\xcb\x59\x1e\xb0\x27\xe4\x69\x43\xe2\x3e\xb7\x65\x68\x75\x86\x7e\x60\x3c\xf1\x38\x92\xa7\x4c\x42\xbb\x18\x44\xc2\x7f\x7f\x45\x4f\x96\x61\xf1\xdb\xb3\x50\x04\xad\xa4\xd6\xd7\x5b\x1d\xf3\x42\xe9\x67\x49\x3d\x20\x7d\x6b\x8b\x4e\xdc\xbf\x9d\x1e\x37\x84\x45\x57\x36\x84\xed\x13\x9b\x67\x1a\xbf\x65\x76\xed\xf8\xd7\x34\x2c\xd8\x64\x9d\x37\x69\x70\xac\xbd\xe2\x24\xa7\xb0\xb6\xa9\x75\xa8\xba\x0a\x76\x8e\xd6\xab\xe1\x6c\x1b\x69\x4f\x65\xdd\x42\x31\xf4\x8c\x28\x84", 200);
                *(uint32_t*)0x10000544 = 0xc8;
                *(uint32_t*)0x10000548 = 0x100003c0;
                memcpy((void*)0x100003c0, "\xa6\xe4\xfe\x18\x6c\x76\x0a\xc2\xeb\xbc\xf9\xef\xda\x5e\x22\xe2\xdf\x6f\x15\x3f\xcc\xda\x1c\x16\x97\x60\x37\xd0\x3e\xe0\x04\xc3\xfb\xba\x5d\x35\xb6\xc0\x83\x13\x0f\xc7\x05\xf9\x58\x89\xba\x6a\xdb\xe5\xe3\xa7\xa5\xe7\x01\x36\xa0\xca\x08\x5b\x7e\x50\x4d\x0d\xf5\x5f\xe1\x84\xa9\xbd\x7a\x82", 72);
                *(uint32_t*)0x1000054c = 0x48;
                *(uint32_t*)0x10000550 = 0x10000440;
                memcpy((void*)0x10000440, "\xc7\xe0\x00\x30\xb3\xc4\x54\x17\x43\xee\x65\x13", 12);
                *(uint32_t*)0x10000554 = 0xc;
                *(uint32_t*)0x10000558 = 0x10000480;
                memcpy((void*)0x10000480, "\xa4\xa6\x7a\x4e\x72\x49\x2b\x9f\xab\x63\x79\xe4\xc0\xf3\x5b\x22\xb6\x9b\x6e\x7a\xef\xc5\x6b\xee\xfa\x85\x7a\xe2\x85\x43", 30);
                *(uint32_t*)0x1000055c = 0x1e;
                *(uint32_t*)0x10000560 = 0x100004c0;
                memcpy((void*)0x100004c0, "\x8f\x09\x5f\x8d\xf1\xc6\xbc\x4d\xfc\x1d\x82\x6f\x02\xdf\xa7\x79\x4b\xeb\xf9\xe7\xff\xc7\x16\x0f\x27\x6a\x53\xd1\xab\xc9\x96\xfc\xa8\xc8\xdb\xc7\xc7\x9c\x09\xcd\x5f\x95\x47\x75\xc9\xe8\xfc\x1c\xf2\xe0\xe3\xc0\x54\xfb\x54\xb6\x62\xd1\xb4\x5f\x52\x35\xfd\xbf\x86\x0c\x3f\xed\x3d\xc3\x4c\xeb\x30\xc4\x4b\xaa\x4d\xed\x7d\xe7\xe9\x53\x3f\x4d\xca\x14\x6d\xb0\xdb\x35\xa9\x3b\xa6\x54\xd4\x90\x11\xd9\xcb\x98\xd1\x57\x6b\x73\x1b\x9c\x2b\xb5\x8c\x0d\xf4\xed\xee\x6e\xf5\xae\x1f\x8b\x6b\xc9\x64\x6f\x5b\x4a\xde\x4d\xd5\x2a", 128);
                *(uint32_t*)0x10000564 = 0x80;
                *(uint32_t*)0x100015c4 = 5;
                *(uint32_t*)0x100015c8 = 0x10001580;
                *(uint32_t*)0x10001580 = 0x10000580;
                memcpy((void*)0x10000580, 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4096);
                *(uint32_t*)0x10001584 = 0x1000;
                *(uint32_t*)0x100015cc = 1;
                		res = syscall(SYS_sendfile, (intptr_t)r[0], 0xffffff9c, 8, 0x800ull, 0x100015c0, 0x10001600, 9);
                		fprintf(stderr, "### call=4 errno=%u\n", res == -1 ? errno : 0);
                		break;
                	case 5:
                memcpy((void*)0x10001640, "\x6c\x81\x1b\xa5\x2c\x13\x9b\x40\xdc\x56\x80\xcb\x02\x75\xfd\xd4\x40\x46\x8e\x4d\xae\x07\xc7\x45\xba\x75\x8c\xb2\x66\x74\x2f\x46\x8f\xc4\x2d\xa0\x66\x9f\x60\x61\xcb\x2c\x9f\x92\x1e\x95\x34\x51\xb3\x13\x5e\x01\x74\xfe\x8e\xb1\xae\xbb\x2c\x3e\xb8\xa7\xfb\x3f\xc8\xde\xa1\x8e\x65\x2d\x01\xe7\x18\x4c\xa6\x5d\xce\x04\xf4\x67\x9a\xfe\xd2\x76\x6b\x06\x73\x49\xde\x7a\x5e\xf6\x0b\x58\x69\x92\x91\x9a\x20\x38\x2c\x0a\x1f\x20\xaf\x0c\x9c\x7f\xac\x61\xcf\x18\x38\x3e\x36\xfe\x56\x50\x2f\x5f\x26\xb8", 122);
                		res = syscall(SYS_ioctl, -1, 0xc0104453, 0x10001640);
                		fprintf(stderr, "### call=5 errno=%u\n", res == -1 ? errno : 0);
                		break;
                	case 6:
                		res = syscall(SYS_freebsd10_pipe, 0x100016c0);
                		fprintf(stderr, "### call=6 errno=%u\n", res == -1 ? errno : 0);
                		if (res != -1) {
                r[1] = *(uint32_t*)0x100016c0;
                r[2] = *(uint32_t*)0x100016c4;
                		}
                		break;
                	case 7:
                *(uint8_t*)0x10001700 = 0x10;
                *(uint8_t*)0x10001701 = 2;
                *(uint16_t*)0x10001702 = htobe16(0x4e23);
                *(uint32_t*)0x10001704 = htobe32(7);
                *(uint8_t*)0x10001708 = 0;
                *(uint8_t*)0x10001709 = 0;
                *(uint8_t*)0x1000170a = 0;
                *(uint8_t*)0x1000170b = 0;
                *(uint8_t*)0x1000170c = 0;
                *(uint8_t*)0x1000170d = 0;
                *(uint8_t*)0x1000170e = 0;
                *(uint8_t*)0x1000170f = 0;
                *(uint32_t*)0x10001740 = 0x10;
                		res = syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x8002, 0x10001700, 0x10001740);
                		fprintf(stderr, "### call=7 errno=%u\n", res == -1 ? errno : 0);
                		break;
                	case 8:
                *(uint32_t*)0x100017c0 = 4;
                		res = syscall(SYS_getsockopt, -1, 0x84, 0x20, 0x10001780, 0x100017c0);
                		fprintf(stderr, "### call=8 errno=%u\n", res == -1 ? errno : 0);
                		break;
                	case 9:
                *(uint32_t*)0x10001800 = 8;
                *(uint16_t*)0x10001804 = 0x1000;
                *(uint16_t*)0x10001806 = 0;
                *(uint16_t*)0x10001808 = 0x8000;
                *(uint16_t*)0x1000180a = 0x200;
                *(uint16_t*)0x1000180c = 0x4000;
                *(uint16_t*)0x1000180e = 0;
                *(uint16_t*)0x10001810 = 1;
                *(uint16_t*)0x10001812 = 0;
                *(uint32_t*)0x10001840 = 0x14;
                		res = syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x14, 0x10001800, 0x10001840);
                		fprintf(stderr, "### call=9 errno=%u\n", res == -1 ? errno : 0);
                		break;
                	case 10:
                memcpy((void*)0x10000000, "\xc9\x0c\x8a\x7c\x33\x7f", 6);
                *(uint8_t*)0x10000006 = 0xaa;
                *(uint8_t*)0x10000007 = 0xaa;
                *(uint8_t*)0x10000008 = 0xaa;
                *(uint8_t*)0x10000009 = 0xaa;
                *(uint8_t*)0x1000000a = 0xaa;
                *(uint8_t*)0x1000000b = 0xaa;
                *(uint16_t*)0x1000000c = htobe16(0x8100);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 0, 3);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 3, 1);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 4, 12);
                *(uint16_t*)0x10000010 = htobe16(0x800);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 0x1c, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 4, 4, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 0, 2);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 2, 6);
                *(uint16_t*)0x10000014 = htobe16(0x81);
                *(uint16_t*)0x10000016 = htobe16(0x65);
                *(uint16_t*)0x10000018 = htobe16(5);
                *(uint8_t*)0x1000001a = 1;
                *(uint8_t*)0x1000001b = 0x46;
                *(uint16_t*)0x1000001c = htobe16(0);
                *(uint32_t*)0x1000001e = htobe32(-1);
                *(uint8_t*)0x10000022 = 0xac;
                *(uint8_t*)0x10000023 = 0x14;
                *(uint8_t*)0x10000024 = 0;
                *(uint8_t*)0x10000025 = 0xbb;
                *(uint8_t*)0x10000026 = 0;
                *(uint8_t*)0x10000027 = 0x44;
                *(uint8_t*)0x10000028 = 0xc;
                *(uint8_t*)0x10000029 = 5;
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 0, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 3, 4, 4);
                *(uint32_t*)0x1000002b = htobe32(9);
                *(uint32_t*)0x1000002f = htobe32(4);
                *(uint8_t*)0x10000033 = 0x83;
                *(uint8_t*)0x10000034 = 0xb;
                *(uint8_t*)0x10000035 = 6;
                *(uint32_t*)0x10000036 = htobe32(0xe0000001);
                *(uint32_t*)0x1000003a = htobe32(-1);
                *(uint8_t*)0x1000003e = 0;
                *(uint8_t*)0x1000003f = 4;
                memcpy((void*)0x10000040, "\xa4\xd4", 2);
                *(uint8_t*)0x10000042 = 0x89;
                *(uint8_t*)0x10000043 = 0x13;
                *(uint8_t*)0x10000044 = 4;
                *(uint8_t*)0x10000045 = 0xac;
                *(uint8_t*)0x10000046 = 0x14;
                *(uint8_t*)0x10000047 = 0;
                *(uint8_t*)0x10000048 = 0xbb;
                *(uint32_t*)0x10000049 = htobe32(-1);
                *(uint8_t*)0x1000004d = 0xac;
                *(uint8_t*)0x1000004e = 0x14;
                *(uint8_t*)0x1000004f = 0;
                *(uint8_t*)0x10000050 = 0xbb;
                *(uint32_t*)0x10000051 = htobe32(0);
                *(uint8_t*)0x10000055 = 0x94;
                *(uint8_t*)0x10000056 = 6;
                *(uint32_t*)0x10000057 = htobe32(9);
                *(uint8_t*)0x1000005b = 0x94;
                *(uint8_t*)0x1000005c = 6;
                *(uint32_t*)0x1000005d = htobe32(0x80000001);
                *(uint8_t*)0x10000061 = 1;
                *(uint8_t*)0x10000062 = 0x83;
                *(uint8_t*)0x10000063 = 0x1f;
                *(uint8_t*)0x10000064 = 2;
                *(uint32_t*)0x10000065 = htobe32(0xe0000002);
                *(uint32_t*)0x10000069 = htobe32(0xe0000001);
                *(uint32_t*)0x1000006d = htobe32(0x7f000001);
                *(uint32_t*)0x10000071 = htobe32(0);
                *(uint32_t*)0x10000075 = htobe32(0x7f000001);
                *(uint32_t*)0x10000079 = htobe32(0x7f000001);
                *(uint32_t*)0x1000007d = htobe32(0xe0000001);
                memcpy((void*)0x10000082, "\x8d\x86\x2d\x09\x9b\x6b\xb2\xba\x6a\xea\xa6\xab\xd3\xe9\xd5\x82\xc9", 17);
                		struct csum_inet csum_1;
                		csum_inet_init(&csum_1);
                csum_inet_update(&csum_1, (const uint8_t*)0x10000012, 112);
                *(uint16_t*)0x1000001c = csum_inet_digest(&csum_1);
                		(void)res;
                		break;
                	case 11:
                memcpy((void*)0x100000c0, "\xc4\xe1\xf5\xf3\x7b\x05\xc4\xc2\xf5\x47\x52\x5a\x80\x8f\x4e\x00\x00\x00\x00\x66\x0f\x38\x1d\xbc\x60\x07\x00\x00\x00\xc4\xe2\xad\x91\x74\xae\x7e\x81\xfe\x00\x00\x00\x00\x8f\xe9\xa0\x99\xd8\xe4\xff\xc4\xc1\x93\x5c\x17\xc4\xc3\xe1\x41\xae\x2f\x10\x9d\xc2\xd8", 64);
                		res = -1;
                		errno = EFAULT;
                res = syz_execute_func(0x100000c0);
                		fprintf(stderr, "### call=11 errno=%u\n", res == -1 ? errno : 0);
                		break;
                	case 12:
                		(void)res;
                		break;
                	}
                
                }
                int main(void)
                {
                		syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
                			use_temporary_dir();
                			do_sandbox_none();
                	return 0;
                }
                
                <stdin>:364:17: error: use of undeclared identifier 'SYS_shm_open2'
                                res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                                              ^
                1 error generated.
                
                compiler invocation: clang [-o /tmp/syz-executor531290899 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow]
        --- FAIL: TestGenerate/freebsd/386/11 (1.48s)
            csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:true Repro:false Trace:false}
                program:
                setsockopt$inet_opts(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000000)="ec04a904b9d2ea02fab2df1d9de39f3f5aa2344397e186204d39d74da156e7c6cd98195b7b83c652b06b6222bdef3363961bf47e9b530fbf65bae3607b60941e2715bd678fcebc5524bcefd3184d", 0x4e)
                ioctl$DIOCSETIFFLAG(0xffffffffffffffff, 0xc0284459, &(0x7f0000000180)={0x10, &(0x7f0000000080)="de11c2a774191d70f51e7c3e375c2814ac72c2d5d0404a2e3d5baf92161f3b451efe9c4c79d7660668f6073e2f76c5f2145195e8c1a4ec34b6f69c1b582768207b28a979f05adc14a3357fe7c493fc81a9177524631bb209be637f8695747fa7cf1c68ac691f169c1b8fb67d7a3776ddfc620ffbe6831f74d2f2d089a4ffecf510a99702258c58ea9e871d4f4ab9a347aabdbb03585b37b5c79436c0c1160a5876b61bbf0c814bb49a27a36082df13cb2f9de2f942b6ac7e158880cfc03cfdccca9fc0f2347eb543a343b4c92707fe736a86a35d58e26f6fd2e9ec8f82", 0x7, 0x5a764000, 0x6})
                recvfrom$inet6(0xffffffffffffff9c, &(0x7f00000001c0)=""/23, 0x17, 0x2, &(0x7f0000000200)={0x1c, 0x1c, 0x3, 0x6, @loopback, 0x2d99}, 0x1c)
                r0 = shm_open2(&(0x7f0000000240)='./file0\x00', 0x800, 0x0, 0x7, &(0x7f0000000280)='\x00')
                sendfile(r0, 0xffffffffffffff9c, 0x8, 0x800, &(0x7f00000015c0)={&(0x7f0000000540)=[{&(0x7f00000002c0)="efacade58ab0192351a102ada32ad1f41e429edf6c4a513ac6d669cadb222eb68297ab8f9f7b3234d0c6cfa280ad14dc1c4c34175119446d79a030d48b57304eb90b428c202382d86cd71e9c1ecc8d3e2d764aae3714cb591eb027e46943e23eb7656875867e603cf13892a74c42bb1844c27f7f454f9661f1dbb35004ada4d6d75b1df342e967493d207d6b8b4edcbf9d1e378445573684ed139b671abf6576edf8d7342cd8649d376970acbde224a7b0b6a975a8ba0a768ed6abe16c1b694f65dd4231f48c2884", 0xc8}, {&(0x7f00000003c0)="a6e4fe186c760ac2ebbcf9efda5e22e2df6f153fccda1c16976037d03ee004c3fbba5d35b6c083130fc705f95889ba6adbe5e3a7a5e70136a0ca085b7e504d0df55fe184a9bd7a82", 0x48}, {&(0x7f0000000440)="c7e00030b3c4541743ee6513", 0xc}, {&(0x7f0000000480)="a4a67a4e72492b9fab6379e4c0f35b22b69b6e7aefc56beefa857ae28543", 0x1e}, {&(0x7f00000004c0)="8f095f8df1c6bc4dfc1d826f02dfa7794bebf9e7ffc7160f276a53d1abc996fca8c8dbc7c79c09cd5f954775c9e8fc1cf2e0e3c054fb54b662d1b45f5235fdbf860c3fed3dc34ceb30c44baa4ded7de7e9533f4dca146db0db35a93ba654d49011d9cb98d1576b731b9c2bb58c0df4edee6ef5ae1f8b6bc9646f5b4ade4dd52a", 0x80}], 0x5, &(0x7f0000001580)=[{&(0x7f0000000580)="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", 0x1000}], 0x1}, &(0x7f0000001600), 0x9)
                ioctl$DIOCXROLLBACK(0xffffffffffffffff, 0xc0104453, &(0x7f0000001640)="6c811ba52c139b40dc5680cb0275fdd440468e4dae07c745ba758cb266742f468fc42da0669f6061cb2c9f921e953451b3135e0174fe8eb1aebb2c3eb8a7fb3fc8dea18e652d01e7184ca65dce04f4679afed2766b067349de7a5ef60b586992919a20382c0a1f20af0c9c7fac61cf18383e36fe56502f5f26b8")
                freebsd10_pipe(&(0x7f00000016c0)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
                setsockopt$inet6_sctp_SCTP_BINDX_REM_ADDR(r2, 0x84, 0x8002, &(0x7f0000001700)=@in={0x10, 0x2, 0x3, @rand_addr=0x7}, &(0x7f0000001740)=0x10)
                getsockopt$inet6_sctp_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000001780), &(0x7f00000017c0)=0x4)
                getsockopt$inet6_sctp_SCTP_HMAC_IDENT(r1, 0x84, 0x14, &(0x7f0000001800)={0x8, [0x1000, 0x0, 0x8000, 0x200, 0x4000, 0x0, 0x1, 0x0]}, &(0x7f0000001840)=0x14)
                syz_emit_ethernet(0x93, &(0x7f0000000000)={@random="c90c8a7c337f", @local, [{}], {@ipv4={0x800, {{0x1c, 0x4, 0x0, 0x0, 0x81, 0x65, 0x5, 0x1, 0x46, 0x0, @broadcast, @remote={0xac, 0x14, 0x0}, {[@end, @timestamp={0x44, 0xc, 0x5, 0x0, 0x3, [{[], 0x9}, {[], 0x4}]}, @lsrr={0x83, 0xb, 0x6, [@multicast1, @broadcast]}, @generic={0x0, 0x4, "a4d4"}, @ssrr={0x89, 0x13, 0x4, [@remote={0xac, 0x14, 0x0}, @broadcast, @remote={0xac, 0x14, 0x0}, @empty]}, @ra={0x94, 0x6, 0x9}, @ra={0x94, 0x6, 0x80000001}, @noop, @lsrr={0x83, 0x1f, 0x2, [@multicast2, @multicast1, @loopback, @empty, @loopback, @loopback, @multicast1]}]}}, @generic="8d862d099b6bb2ba6aeaa6abd3e9d582c9"}}}})
                syz_execute_func(&(0x7f00000000c0)="c4e1f5f37b05c4c2f547525a808f4e00000000660f381dbc6007000000c4e2ad9174ae7e81fe000000008fe9a099d8e4ffc4c1935c17c4c3e141ae2f109dc2d8")
                syz_extract_tcp_res(&(0x7f0000000100), 0x5, 0x7ff)
                
            csource_test.go:124: failed to build program:
                // autogenerated by syzkaller (https://github.com/google/syzkaller)
                
                #define _GNU_SOURCE 
                
                #include <sys/types.h>
                
                #include <dirent.h>
                #include <errno.h>
                #include <pthread.h>
                #include <pwd.h>
                #include <setjmp.h>
                #include <signal.h>
                #include <stdarg.h>
                #include <stdbool.h>
                #include <stdint.h>
                #include <stdio.h>
                #include <stdlib.h>
                #include <string.h>
                #include <sys/endian.h>
                #include <sys/resource.h>
                #include <sys/stat.h>
                #include <sys/syscall.h>
                #include <sys/wait.h>
                #include <time.h>
                #include <unistd.h>
                
                static __thread int skip_segv;
                static __thread jmp_buf segv_env;
                
                static void segv_handler(int sig, siginfo_t* info, void* ctx)
                {
                	uintptr_t addr = (uintptr_t)info->si_addr;
                	const uintptr_t prog_start = 1 << 20;
                	const uintptr_t prog_end = 100 << 20;
                	int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
                	int valid = addr < prog_start || addr > prog_end;
                	if (sig == SIGBUS) {
                		valid = 1;
                	}
                	if (skip && valid) {
                		_longjmp(segv_env, 1);
                	}
                	exit(sig);
                }
                
                static void install_segv_handler(void)
                {
                	struct sigaction sa;
                	memset(&sa, 0, sizeof(sa));
                	sa.sa_sigaction = segv_handler;
                	sa.sa_flags = SA_NODEFER | SA_SIGINFO;
                	sigaction(SIGSEGV, &sa, NULL);
                	sigaction(SIGBUS, &sa, NULL);
                }
                
                #define NONFAILING(...) ({ int ok = 1; __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); if (_setjmp(segv_env) == 0) { __VA_ARGS__; } else ok = 0; __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); ok; })
                
                static void kill_and_wait(int pid, int* status)
                {
                	kill(pid, SIGKILL);
                	while (waitpid(-1, status, 0) != pid) {
                	}
                }
                
                static void sleep_ms(uint64_t ms)
                {
                	usleep(ms * 1000);
                }
                
                static uint64_t current_time_ms(void)
                {
                	struct timespec ts;
                	if (clock_gettime(CLOCK_MONOTONIC, &ts))
                	exit(1);
                	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
                }
                
                static void use_temporary_dir(void)
                {
                	char tmpdir_template[] = "./syzkaller.XXXXXX";
                	char* tmpdir = mkdtemp(tmpdir_template);
                	if (!tmpdir)
                	exit(1);
                	if (chmod(tmpdir, 0777))
                	exit(1);
                	if (chdir(tmpdir))
                	exit(1);
                }
                
                static void __attribute__((noinline)) remove_dir(const char* dir)
                {
                	DIR* dp = opendir(dir);
                	if (dp == NULL) {
                		if (errno == EACCES) {
                			if (rmdir(dir))
                	exit(1);
                			return;
                		}
                	exit(1);
                	}
                	struct dirent* ep = 0;
                	while ((ep = readdir(dp))) {
                		if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
                			continue;
                		char filename[FILENAME_MAX];
                		snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
                		struct stat st;
                		if (lstat(filename, &st))
                	exit(1);
                		if (S_ISDIR(st.st_mode)) {
                			remove_dir(filename);
                			continue;
                		}
                		if (unlink(filename))
                	exit(1);
                	}
                	closedir(dp);
                	if (rmdir(dir))
                	exit(1);
                }
                
                static void thread_start(void* (*fn)(void*), void* arg)
                {
                	pthread_t th;
                	pthread_attr_t attr;
                	pthread_attr_init(&attr);
                	pthread_attr_setstacksize(&attr, 128 << 10);
                	int i = 0;
                	for (; i < 100; i++) {
                		if (pthread_create(&th, &attr, fn, arg) == 0) {
                			pthread_attr_destroy(&attr);
                			return;
                		}
                		if (errno == EAGAIN) {
                			usleep(50);
                			continue;
                		}
                		break;
                	}
                	exit(1);
                }
                
                typedef struct {
                	pthread_mutex_t mu;
                	pthread_cond_t cv;
                	int state;
                } event_t;
                
                static void event_init(event_t* ev)
                {
                	if (pthread_mutex_init(&ev->mu, 0))
                	exit(1);
                	if (pthread_cond_init(&ev->cv, 0))
                	exit(1);
                	ev->state = 0;
                }
                
                static void event_reset(event_t* ev)
                {
                	ev->state = 0;
                }
                
                static void event_set(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	if (ev->state)
                	exit(1);
                	ev->state = 1;
                	pthread_mutex_unlock(&ev->mu);
                	pthread_cond_broadcast(&ev->cv);
                }
                
                static void event_wait(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	while (!ev->state)
                		pthread_cond_wait(&ev->cv, &ev->mu);
                	pthread_mutex_unlock(&ev->mu);
                }
                
                static int event_isset(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                static int event_timedwait(event_t* ev, uint64_t timeout)
                {
                	uint64_t start = current_time_ms();
                	uint64_t now = start;
                	pthread_mutex_lock(&ev->mu);
                	for (;;) {
                		if (ev->state)
                			break;
                		uint64_t remain = timeout - (now - start);
                		struct timespec ts;
                		ts.tv_sec = remain / 1000;
                		ts.tv_nsec = (remain % 1000) * 1000 * 1000;
                		pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
                		now = current_time_ms();
                		if (now - start > timeout)
                			break;
                	}
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
                #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
                
                struct csum_inet {
                	uint32_t acc;
                };
                
                static void csum_inet_init(struct csum_inet* csum)
                {
                	csum->acc = 0;
                }
                
                static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
                {
                	if (length == 0)
                		return;
                	size_t i = 0;
                	for (; i < length - 1; i += 2)
                		csum->acc += *(uint16_t*)&data[i];
                	if (length & 1)
                		csum->acc += le16toh((uint16_t)data[length - 1]);
                	while (csum->acc > 0xffff)
                		csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
                }
                
                static uint16_t csum_inet_digest(struct csum_inet* csum)
                {
                	return ~csum->acc;
                }
                
                static void sandbox_common()
                {
                	if (setsid() == -1)
                	exit(1);
                	struct rlimit rlim;
                	rlim.rlim_cur = rlim.rlim_max = 128 << 20;
                	setrlimit(RLIMIT_AS, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 8 << 20;
                	setrlimit(RLIMIT_MEMLOCK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_FSIZE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_STACK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 0;
                	setrlimit(RLIMIT_CORE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 256;
                	setrlimit(RLIMIT_NOFILE, &rlim);
                }
                
                static void loop();
                
                static int do_sandbox_none(void)
                {
                	sandbox_common();
                	loop();
                	return 0;
                }
                
                static long syz_execute_func(volatile long text)
                {
                	((void (*)(void))(text))();
                	return 0;
                }
                
                struct thread_t {
                	int created, call;
                	event_t ready, done;
                };
                
                static struct thread_t threads[16];
                static void execute_call(int call);
                static int running;
                
                static void* thr(void* arg)
                {
                	struct thread_t* th = (struct thread_t*)arg;
                	for (;;) {
                		event_wait(&th->ready);
                		event_reset(&th->ready);
                		execute_call(th->call);
                		__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
                		event_set(&th->done);
                	}
                	return 0;
                }
                
                static void execute_one(void)
                {
                	int i, call, thread;
                	for (call = 0; call < 13; call++) {
                		for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
                			struct thread_t* th = &threads[thread];
                			if (!th->created) {
                				th->created = 1;
                				event_init(&th->ready);
                				event_init(&th->done);
                				event_set(&th->done);
                				thread_start(thr, th);
                			}
                			if (!event_isset(&th->done))
                				continue;
                			event_reset(&th->done);
                			th->call = call;
                			__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
                			event_set(&th->ready);
                			event_timedwait(&th->done, 45);
                			break;
                		}
                	}
                	for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
                		sleep_ms(1);
                }
                
                static void execute_one(void);
                
                #define WAIT_FLAGS 0
                
                static void loop(void)
                {
                	int iter = 0;
                	for (;; iter++) {
                		char cwdbuf[32];
                		sprintf(cwdbuf, "./%d", iter);
                		if (mkdir(cwdbuf, 0777))
                	exit(1);
                		int pid = fork();
                		if (pid < 0)
                	exit(1);
                		if (pid == 0) {
                			if (chdir(cwdbuf))
                	exit(1);
                			execute_one();
                			exit(0);
                		}
                		int status = 0;
                		uint64_t start = current_time_ms();
                		for (;;) {
                			if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
                				break;
                			sleep_ms(1);
                			if (current_time_ms() - start < 5 * 1000)
                				continue;
                			kill_and_wait(pid, &status);
                			break;
                		}
                		remove_dir(cwdbuf);
                	}
                }
                
                uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
                
                void execute_call(int call)
                {
                		intptr_t res = 0;
                	switch (call) {
                	case 0:
                		NONFAILING(memcpy((void*)0x10000000, "\xec\x04\xa9\x04\xb9\xd2\xea\x02\xfa\xb2\xdf\x1d\x9d\xe3\x9f\x3f\x5a\xa2\x34\x43\x97\xe1\x86\x20\x4d\x39\xd7\x4d\xa1\x56\xe7\xc6\xcd\x98\x19\x5b\x7b\x83\xc6\x52\xb0\x6b\x62\x22\xbd\xef\x33\x63\x96\x1b\xf4\x7e\x9b\x53\x0f\xbf\x65\xba\xe3\x60\x7b\x60\x94\x1e\x27\x15\xbd\x67\x8f\xce\xbc\x55\x24\xbc\xef\xd3\x18\x4d", 78));
                		syscall(SYS_setsockopt, 0xffffff9c, 0, 0, 0x10000000, 0x4e);
                		break;
                	case 1:
                		NONFAILING(*(uint8_t*)0x10000180 = 0x10);
                		NONFAILING(*(uint32_t*)0x10000184 = 0x10000080);
                		NONFAILING(memcpy((void*)0x10000080, "\xde\x11\xc2\xa7\x74\x19\x1d\x70\xf5\x1e\x7c\x3e\x37\x5c\x28\x14\xac\x72\xc2\xd5\xd0\x40\x4a\x2e\x3d\x5b\xaf\x92\x16\x1f\x3b\x45\x1e\xfe\x9c\x4c\x79\xd7\x66\x06\x68\xf6\x07\x3e\x2f\x76\xc5\xf2\x14\x51\x95\xe8\xc1\xa4\xec\x34\xb6\xf6\x9c\x1b\x58\x27\x68\x20\x7b\x28\xa9\x79\xf0\x5a\xdc\x14\xa3\x35\x7f\xe7\xc4\x93\xfc\x81\xa9\x17\x75\x24\x63\x1b\xb2\x09\xbe\x63\x7f\x86\x95\x74\x7f\xa7\xcf\x1c\x68\xac\x69\x1f\x16\x9c\x1b\x8f\xb6\x7d\x7a\x37\x76\xdd\xfc\x62\x0f\xfb\xe6\x83\x1f\x74\xd2\xf2\xd0\x89\xa4\xff\xec\xf5\x10\xa9\x97\x02\x25\x8c\x58\xea\x9e\x87\x1d\x4f\x4a\xb9\xa3\x47\xaa\xbd\xbb\x03\x58\x5b\x37\xb5\xc7\x94\x36\xc0\xc1\x16\x0a\x58\x76\xb6\x1b\xbf\x0c\x81\x4b\xb4\x9a\x27\xa3\x60\x82\xdf\x13\xcb\x2f\x9d\xe2\xf9\x42\xb6\xac\x7e\x15\x88\x80\xcf\xc0\x3c\xfd\xcc\xca\x9f\xc0\xf2\x34\x7e\xb5\x43\xa3\x43\xb4\xc9\x27\x07\xfe\x73\x6a\x86\xa3\x5d\x58\xe2\x6f\x6f\xd2\xe9\xec\x8f\x82", 221));
                		NONFAILING(*(uint32_t*)0x10000188 = 7);
                		NONFAILING(*(uint32_t*)0x1000018c = 0x5a764000);
                		NONFAILING(*(uint32_t*)0x10000190 = 6);
                		syscall(SYS_ioctl, -1, 0xc0284459, 0x10000180);
                		break;
                	case 2:
                		NONFAILING(*(uint8_t*)0x10000200 = 0x1c);
                		NONFAILING(*(uint8_t*)0x10000201 = 0x1c);
                		NONFAILING(*(uint16_t*)0x10000202 = htobe16(0x4e23));
                		NONFAILING(*(uint32_t*)0x10000204 = 6);
                		NONFAILING(*(uint64_t*)0x10000208 = htobe64(0));
                		NONFAILING(*(uint64_t*)0x10000210 = htobe64(1));
                		NONFAILING(*(uint32_t*)0x10000218 = 0x2d99);
                		syscall(SYS_recvfrom, 0xffffff9c, 0x100001c0, 0x17, 2, 0x10000200, 0x1c);
                		break;
                	case 3:
                		NONFAILING(memcpy((void*)0x10000240, "./file0\000", 8));
                		NONFAILING(memcpy((void*)0x10000280, "\000", 1));
                		res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                		if (res != -1)
                				r[0] = res;
                		break;
                	case 4:
                		NONFAILING(*(uint32_t*)0x100015c0 = 0x10000540);
                		NONFAILING(*(uint32_t*)0x10000540 = 0x100002c0);
                		NONFAILING(memcpy((void*)0x100002c0, "\xef\xac\xad\xe5\x8a\xb0\x19\x23\x51\xa1\x02\xad\xa3\x2a\xd1\xf4\x1e\x42\x9e\xdf\x6c\x4a\x51\x3a\xc6\xd6\x69\xca\xdb\x22\x2e\xb6\x82\x97\xab\x8f\x9f\x7b\x32\x34\xd0\xc6\xcf\xa2\x80\xad\x14\xdc\x1c\x4c\x34\x17\x51\x19\x44\x6d\x79\xa0\x30\xd4\x8b\x57\x30\x4e\xb9\x0b\x42\x8c\x20\x23\x82\xd8\x6c\xd7\x1e\x9c\x1e\xcc\x8d\x3e\x2d\x76\x4a\xae\x37\x14\xcb\x59\x1e\xb0\x27\xe4\x69\x43\xe2\x3e\xb7\x65\x68\x75\x86\x7e\x60\x3c\xf1\x38\x92\xa7\x4c\x42\xbb\x18\x44\xc2\x7f\x7f\x45\x4f\x96\x61\xf1\xdb\xb3\x50\x04\xad\xa4\xd6\xd7\x5b\x1d\xf3\x42\xe9\x67\x49\x3d\x20\x7d\x6b\x8b\x4e\xdc\xbf\x9d\x1e\x37\x84\x45\x57\x36\x84\xed\x13\x9b\x67\x1a\xbf\x65\x76\xed\xf8\xd7\x34\x2c\xd8\x64\x9d\x37\x69\x70\xac\xbd\xe2\x24\xa7\xb0\xb6\xa9\x75\xa8\xba\x0a\x76\x8e\xd6\xab\xe1\x6c\x1b\x69\x4f\x65\xdd\x42\x31\xf4\x8c\x28\x84", 200));
                		NONFAILING(*(uint32_t*)0x10000544 = 0xc8);
                		NONFAILING(*(uint32_t*)0x10000548 = 0x100003c0);
                		NONFAILING(memcpy((void*)0x100003c0, "\xa6\xe4\xfe\x18\x6c\x76\x0a\xc2\xeb\xbc\xf9\xef\xda\x5e\x22\xe2\xdf\x6f\x15\x3f\xcc\xda\x1c\x16\x97\x60\x37\xd0\x3e\xe0\x04\xc3\xfb\xba\x5d\x35\xb6\xc0\x83\x13\x0f\xc7\x05\xf9\x58\x89\xba\x6a\xdb\xe5\xe3\xa7\xa5\xe7\x01\x36\xa0\xca\x08\x5b\x7e\x50\x4d\x0d\xf5\x5f\xe1\x84\xa9\xbd\x7a\x82", 72));
                		NONFAILING(*(uint32_t*)0x1000054c = 0x48);
                		NONFAILING(*(uint32_t*)0x10000550 = 0x10000440);
                		NONFAILING(memcpy((void*)0x10000440, "\xc7\xe0\x00\x30\xb3\xc4\x54\x17\x43\xee\x65\x13", 12));
                		NONFAILING(*(uint32_t*)0x10000554 = 0xc);
                		NONFAILING(*(uint32_t*)0x10000558 = 0x10000480);
                		NONFAILING(memcpy((void*)0x10000480, "\xa4\xa6\x7a\x4e\x72\x49\x2b\x9f\xab\x63\x79\xe4\xc0\xf3\x5b\x22\xb6\x9b\x6e\x7a\xef\xc5\x6b\xee\xfa\x85\x7a\xe2\x85\x43", 30));
                		NONFAILING(*(uint32_t*)0x1000055c = 0x1e);
                		NONFAILING(*(uint32_t*)0x10000560 = 0x100004c0);
                		NONFAILING(memcpy((void*)0x100004c0, "\x8f\x09\x5f\x8d\xf1\xc6\xbc\x4d\xfc\x1d\x82\x6f\x02\xdf\xa7\x79\x4b\xeb\xf9\xe7\xff\xc7\x16\x0f\x27\x6a\x53\xd1\xab\xc9\x96\xfc\xa8\xc8\xdb\xc7\xc7\x9c\x09\xcd\x5f\x95\x47\x75\xc9\xe8\xfc\x1c\xf2\xe0\xe3\xc0\x54\xfb\x54\xb6\x62\xd1\xb4\x5f\x52\x35\xfd\xbf\x86\x0c\x3f\xed\x3d\xc3\x4c\xeb\x30\xc4\x4b\xaa\x4d\xed\x7d\xe7\xe9\x53\x3f\x4d\xca\x14\x6d\xb0\xdb\x35\xa9\x3b\xa6\x54\xd4\x90\x11\xd9\xcb\x98\xd1\x57\x6b\x73\x1b\x9c\x2b\xb5\x8c\x0d\xf4\xed\xee\x6e\xf5\xae\x1f\x8b\x6b\xc9\x64\x6f\x5b\x4a\xde\x4d\xd5\x2a", 128));
                		NONFAILING(*(uint32_t*)0x10000564 = 0x80);
                		NONFAILING(*(uint32_t*)0x100015c4 = 5);
                		NONFAILING(*(uint32_t*)0x100015c8 = 0x10001580);
                		NONFAILING(*(uint32_t*)0x10001580 = 0x10000580);
                		NONFAILING(memcpy((void*)0x10000580, 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d\x78\x21\x78\x31\x91\xe0\x3b\x56\x82\xae\x7c\x0d\xad\xd4\xa9\x27\x24\xaa\xfc\xe0\x24\xae\x0a\xcc\x8e\x39\xcd\x3e\xaf\x4e\xde\x02\x49\x07\xe5\x09\x77\x22\x8d\xf4\xd3\xa6\xa4\x28\x88\x6f\xb2\x4f\x9a\xa1\x53\x66\xbc\xae\x6e\xbb\x17\x51\x40\x2b\x9f\x34\xa3\x85\x40\xc0\x92\x93\x04\x7f\xe9\x43\x73\xc1\x7a\x9c\xcc\xff\x1a\x1d\xe3\x22\xef\xc3\xfe\x33\x48\x01\xaa\x76\x44\x4d\xd0\xd4\xc0\x17\xfe\xb9\xd4\x53\xeb\x35\xf2\x1e\xfe\x33\x2e\xd9\xae\x75\x57\x1c\xa5\x77\x8e\xb4\xb6\x9d\x94\xf7\x69\xdb\xf0\x8c\xaf\xa0\x7a\x7f\x42\xf1\x2f\x8f\x2a\x9e\x3e\xb6\x97\x6e\x01\x62\xc3\xf2\x34\x51\xd9\x74\xc8\x7f\x60\x63\xbd\x31\xdb\x13\x85\x81\x1b\x55\x4c\x85\x50\xba\x51\x30\xf8\x8d\x79\x7a\x8b\xab\x3e\x01\xb2\x1e\x5f\xeb\xd2\xb0\xf6\x6e\x8f\x58\x42\xc1\x04\x10\x74\x28\x42\x3a\x8c\x8d\x39\x4c\x5e\x19\xea\x71\x75\x87\xa9\x2f\xe0\x70\xe5\xb4\x9e\xc4\xaf\x4b\xc6\x32\xe2\xf3\xe8\x0f\xa6\x51\x16\xf3\x8e\x12\xd8\xa2\x18\xf4\xf2\x36\x10\x5e\x39\x08\x02\xb3\xf9\x92\x16\x50\xba\x41\x81\x77\xf8\x33\x26\x18\x61\xab\xee\xbf\xae\xc3\x19\x89\x49\x2f\x7f\x02\xd1\xb0\x62\x16\x9d\x3b\xee\x9a\xa3\x99\xd3\xdf\xa9\xf9\x8d\x48\x29\xe9\x8f\xe7\x67\x23\x6f\x5d\xd9\x81\x09\x43\x9d\x31\x99\x9c\x03\x51\x9e\xa3\x8d\xe2\x5b\x3f\xe3\x8b\x42\x0f\xbe\x45\x52\xe9\xad\xed\xb3\x07\xfd\xff\xc9\x8e\xa4\x58\x6d\x60\xee\x31\x33\x28\xc5\xb6\xc3\xff\x50\x4e\xbe\xd2\x8f\x56\x69\x80\x16\xdd\x79\x6b\x9b\x9e\x85\x0d\x79\x18\xd8\xb8", 4096));
                		NONFAILING(*(uint32_t*)0x10001584 = 0x1000);
                		NONFAILING(*(uint32_t*)0x100015cc = 1);
                		syscall(SYS_sendfile, (intptr_t)r[0], 0xffffff9c, 8, 0x800ull, 0x100015c0, 0x10001600, 9);
                		break;
                	case 5:
                		NONFAILING(memcpy((void*)0x10001640, "\x6c\x81\x1b\xa5\x2c\x13\x9b\x40\xdc\x56\x80\xcb\x02\x75\xfd\xd4\x40\x46\x8e\x4d\xae\x07\xc7\x45\xba\x75\x8c\xb2\x66\x74\x2f\x46\x8f\xc4\x2d\xa0\x66\x9f\x60\x61\xcb\x2c\x9f\x92\x1e\x95\x34\x51\xb3\x13\x5e\x01\x74\xfe\x8e\xb1\xae\xbb\x2c\x3e\xb8\xa7\xfb\x3f\xc8\xde\xa1\x8e\x65\x2d\x01\xe7\x18\x4c\xa6\x5d\xce\x04\xf4\x67\x9a\xfe\xd2\x76\x6b\x06\x73\x49\xde\x7a\x5e\xf6\x0b\x58\x69\x92\x91\x9a\x20\x38\x2c\x0a\x1f\x20\xaf\x0c\x9c\x7f\xac\x61\xcf\x18\x38\x3e\x36\xfe\x56\x50\x2f\x5f\x26\xb8", 122));
                		syscall(SYS_ioctl, -1, 0xc0104453, 0x10001640);
                		break;
                	case 6:
                		res = syscall(SYS_freebsd10_pipe, 0x100016c0);
                		if (res != -1) {
                				NONFAILING(r[1] = *(uint32_t*)0x100016c0);
                				NONFAILING(r[2] = *(uint32_t*)0x100016c4);
                		}
                		break;
                	case 7:
                		NONFAILING(*(uint8_t*)0x10001700 = 0x10);
                		NONFAILING(*(uint8_t*)0x10001701 = 2);
                		NONFAILING(*(uint16_t*)0x10001702 = htobe16(0x4e23));
                		NONFAILING(*(uint32_t*)0x10001704 = htobe32(7));
                		NONFAILING(*(uint8_t*)0x10001708 = 0);
                		NONFAILING(*(uint8_t*)0x10001709 = 0);
                		NONFAILING(*(uint8_t*)0x1000170a = 0);
                		NONFAILING(*(uint8_t*)0x1000170b = 0);
                		NONFAILING(*(uint8_t*)0x1000170c = 0);
                		NONFAILING(*(uint8_t*)0x1000170d = 0);
                		NONFAILING(*(uint8_t*)0x1000170e = 0);
                		NONFAILING(*(uint8_t*)0x1000170f = 0);
                		NONFAILING(*(uint32_t*)0x10001740 = 0x10);
                		syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x8002, 0x10001700, 0x10001740);
                		break;
                	case 8:
                		NONFAILING(*(uint32_t*)0x100017c0 = 4);
                		syscall(SYS_getsockopt, -1, 0x84, 0x20, 0x10001780, 0x100017c0);
                		break;
                	case 9:
                		NONFAILING(*(uint32_t*)0x10001800 = 8);
                		NONFAILING(*(uint16_t*)0x10001804 = 0x1000);
                		NONFAILING(*(uint16_t*)0x10001806 = 0);
                		NONFAILING(*(uint16_t*)0x10001808 = 0x8000);
                		NONFAILING(*(uint16_t*)0x1000180a = 0x200);
                		NONFAILING(*(uint16_t*)0x1000180c = 0x4000);
                		NONFAILING(*(uint16_t*)0x1000180e = 0);
                		NONFAILING(*(uint16_t*)0x10001810 = 1);
                		NONFAILING(*(uint16_t*)0x10001812 = 0);
                		NONFAILING(*(uint32_t*)0x10001840 = 0x14);
                		syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x14, 0x10001800, 0x10001840);
                		break;
                	case 10:
                		NONFAILING(memcpy((void*)0x10000000, "\xc9\x0c\x8a\x7c\x33\x7f", 6));
                		NONFAILING(*(uint8_t*)0x10000006 = 0xaa);
                		NONFAILING(*(uint8_t*)0x10000007 = 0xaa);
                		NONFAILING(*(uint8_t*)0x10000008 = 0xaa);
                		NONFAILING(*(uint8_t*)0x10000009 = 0xaa);
                		NONFAILING(*(uint8_t*)0x1000000a = 0xaa);
                		NONFAILING(*(uint8_t*)0x1000000b = 0xaa);
                		NONFAILING(*(uint16_t*)0x1000000c = htobe16(0x8100));
                		NONFAILING(STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 0, 3));
                		NONFAILING(STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 3, 1));
                		NONFAILING(STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 4, 12));
                		NONFAILING(*(uint16_t*)0x10000010 = htobe16(0x800));
                		NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x10000012, 0x1c, 0, 4));
                		NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x10000012, 4, 4, 4));
                		NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 0, 2));
                		NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 2, 6));
                		NONFAILING(*(uint16_t*)0x10000014 = htobe16(0x81));
                		NONFAILING(*(uint16_t*)0x10000016 = htobe16(0x65));
                		NONFAILING(*(uint16_t*)0x10000018 = htobe16(5));
                		NONFAILING(*(uint8_t*)0x1000001a = 1);
                		NONFAILING(*(uint8_t*)0x1000001b = 0x46);
                		NONFAILING(*(uint16_t*)0x1000001c = htobe16(0));
                		NONFAILING(*(uint32_t*)0x1000001e = htobe32(-1));
                		NONFAILING(*(uint8_t*)0x10000022 = 0xac);
                		NONFAILING(*(uint8_t*)0x10000023 = 0x14);
                		NONFAILING(*(uint8_t*)0x10000024 = 0);
                		NONFAILING(*(uint8_t*)0x10000025 = 0xbb);
                		NONFAILING(*(uint8_t*)0x10000026 = 0);
                		NONFAILING(*(uint8_t*)0x10000027 = 0x44);
                		NONFAILING(*(uint8_t*)0x10000028 = 0xc);
                		NONFAILING(*(uint8_t*)0x10000029 = 5);
                		NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x1000002a, 0, 0, 4));
                		NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x1000002a, 3, 4, 4));
                		NONFAILING(*(uint32_t*)0x1000002b = htobe32(9));
                		NONFAILING(*(uint32_t*)0x1000002f = htobe32(4));
                		NONFAILING(*(uint8_t*)0x10000033 = 0x83);
                		NONFAILING(*(uint8_t*)0x10000034 = 0xb);
                		NONFAILING(*(uint8_t*)0x10000035 = 6);
                		NONFAILING(*(uint32_t*)0x10000036 = htobe32(0xe0000001));
                		NONFAILING(*(uint32_t*)0x1000003a = htobe32(-1));
                		NONFAILING(*(uint8_t*)0x1000003e = 0);
                		NONFAILING(*(uint8_t*)0x1000003f = 4);
                		NONFAILING(memcpy((void*)0x10000040, "\xa4\xd4", 2));
                		NONFAILING(*(uint8_t*)0x10000042 = 0x89);
                		NONFAILING(*(uint8_t*)0x10000043 = 0x13);
                		NONFAILING(*(uint8_t*)0x10000044 = 4);
                		NONFAILING(*(uint8_t*)0x10000045 = 0xac);
                		NONFAILING(*(uint8_t*)0x10000046 = 0x14);
                		NONFAILING(*(uint8_t*)0x10000047 = 0);
                		NONFAILING(*(uint8_t*)0x10000048 = 0xbb);
                		NONFAILING(*(uint32_t*)0x10000049 = htobe32(-1));
                		NONFAILING(*(uint8_t*)0x1000004d = 0xac);
                		NONFAILING(*(uint8_t*)0x1000004e = 0x14);
                		NONFAILING(*(uint8_t*)0x1000004f = 0);
                		NONFAILING(*(uint8_t*)0x10000050 = 0xbb);
                		NONFAILING(*(uint32_t*)0x10000051 = htobe32(0));
                		NONFAILING(*(uint8_t*)0x10000055 = 0x94);
                		NONFAILING(*(uint8_t*)0x10000056 = 6);
                		NONFAILING(*(uint32_t*)0x10000057 = htobe32(9));
                		NONFAILING(*(uint8_t*)0x1000005b = 0x94);
                		NONFAILING(*(uint8_t*)0x1000005c = 6);
                		NONFAILING(*(uint32_t*)0x1000005d = htobe32(0x80000001));
                		NONFAILING(*(uint8_t*)0x10000061 = 1);
                		NONFAILING(*(uint8_t*)0x10000062 = 0x83);
                		NONFAILING(*(uint8_t*)0x10000063 = 0x1f);
                		NONFAILING(*(uint8_t*)0x10000064 = 2);
                		NONFAILING(*(uint32_t*)0x10000065 = htobe32(0xe0000002));
                		NONFAILING(*(uint32_t*)0x10000069 = htobe32(0xe0000001));
                		NONFAILING(*(uint32_t*)0x1000006d = htobe32(0x7f000001));
                		NONFAILING(*(uint32_t*)0x10000071 = htobe32(0));
                		NONFAILING(*(uint32_t*)0x10000075 = htobe32(0x7f000001));
                		NONFAILING(*(uint32_t*)0x10000079 = htobe32(0x7f000001));
                		NONFAILING(*(uint32_t*)0x1000007d = htobe32(0xe0000001));
                		NONFAILING(memcpy((void*)0x10000082, "\x8d\x86\x2d\x09\x9b\x6b\xb2\xba\x6a\xea\xa6\xab\xd3\xe9\xd5\x82\xc9", 17));
                		struct csum_inet csum_1;
                		csum_inet_init(&csum_1);
                		NONFAILING(csum_inet_update(&csum_1, (const uint8_t*)0x10000012, 112));
                		NONFAILING(*(uint16_t*)0x1000001c = csum_inet_digest(&csum_1));
                		break;
                	case 11:
                		NONFAILING(memcpy((void*)0x100000c0, "\xc4\xe1\xf5\xf3\x7b\x05\xc4\xc2\xf5\x47\x52\x5a\x80\x8f\x4e\x00\x00\x00\x00\x66\x0f\x38\x1d\xbc\x60\x07\x00\x00\x00\xc4\xe2\xad\x91\x74\xae\x7e\x81\xfe\x00\x00\x00\x00\x8f\xe9\xa0\x99\xd8\xe4\xff\xc4\xc1\x93\x5c\x17\xc4\xc3\xe1\x41\xae\x2f\x10\x9d\xc2\xd8", 64));
                		NONFAILING(syz_execute_func(0x100000c0));
                		break;
                	case 12:
                		break;
                	}
                
                }
                int main(void)
                {
                		syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
                	install_segv_handler();
                			use_temporary_dir();
                			do_sandbox_none();
                	return 0;
                }
                
                <stdin>:392:17: error: use of undeclared identifier 'SYS_shm_open2'
                                res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                                              ^
                1 error generated.
                
                compiler invocation: clang [-o /tmp/syz-executor393138052 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow]
        --- FAIL: TestGenerate/freebsd/386/14 (1.85s)
            csource_test.go:123: opts: {Threaded:true Collide:true Repeat:true RepeatTimes:0 Procs:2 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:true Trace:false}
                program:
                setsockopt$inet_opts(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000000)="ec04a904b9d2ea02fab2df1d9de39f3f5aa2344397e186204d39d74da156e7c6cd98195b7b83c652b06b6222bdef3363961bf47e9b530fbf65bae3607b60941e2715bd678fcebc5524bcefd3184d", 0x4e)
                ioctl$DIOCSETIFFLAG(0xffffffffffffffff, 0xc0284459, &(0x7f0000000180)={0x10, &(0x7f0000000080)="de11c2a774191d70f51e7c3e375c2814ac72c2d5d0404a2e3d5baf92161f3b451efe9c4c79d7660668f6073e2f76c5f2145195e8c1a4ec34b6f69c1b582768207b28a979f05adc14a3357fe7c493fc81a9177524631bb209be637f8695747fa7cf1c68ac691f169c1b8fb67d7a3776ddfc620ffbe6831f74d2f2d089a4ffecf510a99702258c58ea9e871d4f4ab9a347aabdbb03585b37b5c79436c0c1160a5876b61bbf0c814bb49a27a36082df13cb2f9de2f942b6ac7e158880cfc03cfdccca9fc0f2347eb543a343b4c92707fe736a86a35d58e26f6fd2e9ec8f82", 0x7, 0x5a764000, 0x6})
                recvfrom$inet6(0xffffffffffffff9c, &(0x7f00000001c0)=""/23, 0x17, 0x2, &(0x7f0000000200)={0x1c, 0x1c, 0x3, 0x6, @loopback, 0x2d99}, 0x1c)
                r0 = shm_open2(&(0x7f0000000240)='./file0\x00', 0x800, 0x0, 0x7, &(0x7f0000000280)='\x00')
                sendfile(r0, 0xffffffffffffff9c, 0x8, 0x800, &(0x7f00000015c0)={&(0x7f0000000540)=[{&(0x7f00000002c0)="efacade58ab0192351a102ada32ad1f41e429edf6c4a513ac6d669cadb222eb68297ab8f9f7b3234d0c6cfa280ad14dc1c4c34175119446d79a030d48b57304eb90b428c202382d86cd71e9c1ecc8d3e2d764aae3714cb591eb027e46943e23eb7656875867e603cf13892a74c42bb1844c27f7f454f9661f1dbb35004ada4d6d75b1df342e967493d207d6b8b4edcbf9d1e378445573684ed139b671abf6576edf8d7342cd8649d376970acbde224a7b0b6a975a8ba0a768ed6abe16c1b694f65dd4231f48c2884", 0xc8}, {&(0x7f00000003c0)="a6e4fe186c760ac2ebbcf9efda5e22e2df6f153fccda1c16976037d03ee004c3fbba5d35b6c083130fc705f95889ba6adbe5e3a7a5e70136a0ca085b7e504d0df55fe184a9bd7a82", 0x48}, {&(0x7f0000000440)="c7e00030b3c4541743ee6513", 0xc}, {&(0x7f0000000480)="a4a67a4e72492b9fab6379e4c0f35b22b69b6e7aefc56beefa857ae28543", 0x1e}, {&(0x7f00000004c0)="8f095f8df1c6bc4dfc1d826f02dfa7794bebf9e7ffc7160f276a53d1abc996fca8c8dbc7c79c09cd5f954775c9e8fc1cf2e0e3c054fb54b662d1b45f5235fdbf860c3fed3dc34ceb30c44baa4ded7de7e9533f4dca146db0db35a93ba654d49011d9cb98d1576b731b9c2bb58c0df4edee6ef5ae1f8b6bc9646f5b4ade4dd52a", 0x80}], 0x5, &(0x7f0000001580)=[{&(0x7f0000000580)="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", 0x1000}], 0x1}, &(0x7f0000001600), 0x9)
                ioctl$DIOCXROLLBACK(0xffffffffffffffff, 0xc0104453, &(0x7f0000001640)="6c811ba52c139b40dc5680cb0275fdd440468e4dae07c745ba758cb266742f468fc42da0669f6061cb2c9f921e953451b3135e0174fe8eb1aebb2c3eb8a7fb3fc8dea18e652d01e7184ca65dce04f4679afed2766b067349de7a5ef60b586992919a20382c0a1f20af0c9c7fac61cf18383e36fe56502f5f26b8")
                freebsd10_pipe(&(0x7f00000016c0)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
                setsockopt$inet6_sctp_SCTP_BINDX_REM_ADDR(r2, 0x84, 0x8002, &(0x7f0000001700)=@in={0x10, 0x2, 0x3, @rand_addr=0x7}, &(0x7f0000001740)=0x10)
                getsockopt$inet6_sctp_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000001780), &(0x7f00000017c0)=0x4)
                getsockopt$inet6_sctp_SCTP_HMAC_IDENT(r1, 0x84, 0x14, &(0x7f0000001800)={0x8, [0x1000, 0x0, 0x8000, 0x200, 0x4000, 0x0, 0x1, 0x0]}, &(0x7f0000001840)=0x14)
                syz_emit_ethernet(0x93, &(0x7f0000000000)={@random="c90c8a7c337f", @local, [{}], {@ipv4={0x800, {{0x1c, 0x4, 0x0, 0x0, 0x81, 0x65, 0x5, 0x1, 0x46, 0x0, @broadcast, @remote={0xac, 0x14, 0x0}, {[@end, @timestamp={0x44, 0xc, 0x5, 0x0, 0x3, [{[], 0x9}, {[], 0x4}]}, @lsrr={0x83, 0xb, 0x6, [@multicast1, @broadcast]}, @generic={0x0, 0x4, "a4d4"}, @ssrr={0x89, 0x13, 0x4, [@remote={0xac, 0x14, 0x0}, @broadcast, @remote={0xac, 0x14, 0x0}, @empty]}, @ra={0x94, 0x6, 0x9}, @ra={0x94, 0x6, 0x80000001}, @noop, @lsrr={0x83, 0x1f, 0x2, [@multicast2, @multicast1, @loopback, @empty, @loopback, @loopback, @multicast1]}]}}, @generic="8d862d099b6bb2ba6aeaa6abd3e9d582c9"}}}})
                syz_execute_func(&(0x7f00000000c0)="c4e1f5f37b05c4c2f547525a808f4e00000000660f381dbc6007000000c4e2ad9174ae7e81fe000000008fe9a099d8e4ffc4c1935c17c4c3e141ae2f109dc2d8")
                syz_extract_tcp_res(&(0x7f0000000100), 0x5, 0x7ff)
                
            csource_test.go:124: failed to build program:
                // autogenerated by syzkaller (https://github.com/google/syzkaller)
                
                #define _GNU_SOURCE 
                
                #include <sys/types.h>
                
                #include <dirent.h>
                #include <errno.h>
                #include <pthread.h>
                #include <pwd.h>
                #include <signal.h>
                #include <stdarg.h>
                #include <stdbool.h>
                #include <stdint.h>
                #include <stdio.h>
                #include <stdlib.h>
                #include <string.h>
                #include <sys/endian.h>
                #include <sys/resource.h>
                #include <sys/stat.h>
                #include <sys/syscall.h>
                #include <sys/wait.h>
                #include <time.h>
                #include <unistd.h>
                
                static unsigned long long procid;
                
                static void kill_and_wait(int pid, int* status)
                {
                	kill(pid, SIGKILL);
                	while (waitpid(-1, status, 0) != pid) {
                	}
                }
                
                static void sleep_ms(uint64_t ms)
                {
                	usleep(ms * 1000);
                }
                
                static uint64_t current_time_ms(void)
                {
                	struct timespec ts;
                	if (clock_gettime(CLOCK_MONOTONIC, &ts))
                	exit(1);
                	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
                }
                
                static void use_temporary_dir(void)
                {
                	char tmpdir_template[] = "./syzkaller.XXXXXX";
                	char* tmpdir = mkdtemp(tmpdir_template);
                	if (!tmpdir)
                	exit(1);
                	if (chmod(tmpdir, 0777))
                	exit(1);
                	if (chdir(tmpdir))
                	exit(1);
                }
                
                static void __attribute__((noinline)) remove_dir(const char* dir)
                {
                	DIR* dp = opendir(dir);
                	if (dp == NULL) {
                		if (errno == EACCES) {
                			if (rmdir(dir))
                	exit(1);
                			return;
                		}
                	exit(1);
                	}
                	struct dirent* ep = 0;
                	while ((ep = readdir(dp))) {
                		if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
                			continue;
                		char filename[FILENAME_MAX];
                		snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
                		struct stat st;
                		if (lstat(filename, &st))
                	exit(1);
                		if (S_ISDIR(st.st_mode)) {
                			remove_dir(filename);
                			continue;
                		}
                		if (unlink(filename))
                	exit(1);
                	}
                	closedir(dp);
                	if (rmdir(dir))
                	exit(1);
                }
                
                static void thread_start(void* (*fn)(void*), void* arg)
                {
                	pthread_t th;
                	pthread_attr_t attr;
                	pthread_attr_init(&attr);
                	pthread_attr_setstacksize(&attr, 128 << 10);
                	int i = 0;
                	for (; i < 100; i++) {
                		if (pthread_create(&th, &attr, fn, arg) == 0) {
                			pthread_attr_destroy(&attr);
                			return;
                		}
                		if (errno == EAGAIN) {
                			usleep(50);
                			continue;
                		}
                		break;
                	}
                	exit(1);
                }
                
                typedef struct {
                	pthread_mutex_t mu;
                	pthread_cond_t cv;
                	int state;
                } event_t;
                
                static void event_init(event_t* ev)
                {
                	if (pthread_mutex_init(&ev->mu, 0))
                	exit(1);
                	if (pthread_cond_init(&ev->cv, 0))
                	exit(1);
                	ev->state = 0;
                }
                
                static void event_reset(event_t* ev)
                {
                	ev->state = 0;
                }
                
                static void event_set(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	if (ev->state)
                	exit(1);
                	ev->state = 1;
                	pthread_mutex_unlock(&ev->mu);
                	pthread_cond_broadcast(&ev->cv);
                }
                
                static void event_wait(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	while (!ev->state)
                		pthread_cond_wait(&ev->cv, &ev->mu);
                	pthread_mutex_unlock(&ev->mu);
                }
                
                static int event_isset(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                static int event_timedwait(event_t* ev, uint64_t timeout)
                {
                	uint64_t start = current_time_ms();
                	uint64_t now = start;
                	pthread_mutex_lock(&ev->mu);
                	for (;;) {
                		if (ev->state)
                			break;
                		uint64_t remain = timeout - (now - start);
                		struct timespec ts;
                		ts.tv_sec = remain / 1000;
                		ts.tv_nsec = (remain % 1000) * 1000 * 1000;
                		pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
                		now = current_time_ms();
                		if (now - start > timeout)
                			break;
                	}
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
                #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
                
                struct csum_inet {
                	uint32_t acc;
                };
                
                static void csum_inet_init(struct csum_inet* csum)
                {
                	csum->acc = 0;
                }
                
                static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
                {
                	if (length == 0)
                		return;
                	size_t i = 0;
                	for (; i < length - 1; i += 2)
                		csum->acc += *(uint16_t*)&data[i];
                	if (length & 1)
                		csum->acc += le16toh((uint16_t)data[length - 1]);
                	while (csum->acc > 0xffff)
                		csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
                }
                
                static uint16_t csum_inet_digest(struct csum_inet* csum)
                {
                	return ~csum->acc;
                }
                
                static void sandbox_common()
                {
                	if (setsid() == -1)
                	exit(1);
                	struct rlimit rlim;
                	rlim.rlim_cur = rlim.rlim_max = 128 << 20;
                	setrlimit(RLIMIT_AS, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 8 << 20;
                	setrlimit(RLIMIT_MEMLOCK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_FSIZE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_STACK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 0;
                	setrlimit(RLIMIT_CORE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 256;
                	setrlimit(RLIMIT_NOFILE, &rlim);
                }
                
                static void loop();
                
                static int do_sandbox_none(void)
                {
                	sandbox_common();
                	loop();
                	return 0;
                }
                
                static long syz_execute_func(volatile long text)
                {
                	((void (*)(void))(text))();
                	return 0;
                }
                
                struct thread_t {
                	int created, call;
                	event_t ready, done;
                };
                
                static struct thread_t threads[16];
                static void execute_call(int call);
                static int running;
                
                static void* thr(void* arg)
                {
                	struct thread_t* th = (struct thread_t*)arg;
                	for (;;) {
                		event_wait(&th->ready);
                		event_reset(&th->ready);
                		execute_call(th->call);
                		__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
                		event_set(&th->done);
                	}
                	return 0;
                }
                
                static void execute_one(void)
                {
                	if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
                	}
                	int i, call, thread;
                	int collide = 0;
                again:
                	for (call = 0; call < 13; call++) {
                		for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
                			struct thread_t* th = &threads[thread];
                			if (!th->created) {
                				th->created = 1;
                				event_init(&th->ready);
                				event_init(&th->done);
                				event_set(&th->done);
                				thread_start(thr, th);
                			}
                			if (!event_isset(&th->done))
                				continue;
                			event_reset(&th->done);
                			th->call = call;
                			__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
                			event_set(&th->ready);
                			if (collide && (call % 2) == 0)
                				break;
                			event_timedwait(&th->done, 45);
                			break;
                		}
                	}
                	for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
                		sleep_ms(1);
                	if (!collide) {
                		collide = 1;
                		goto again;
                	}
                }
                
                static void execute_one(void);
                
                #define WAIT_FLAGS 0
                
                static void loop(void)
                {
                	int iter = 0;
                	for (;; iter++) {
                		char cwdbuf[32];
                		sprintf(cwdbuf, "./%d", iter);
                		if (mkdir(cwdbuf, 0777))
                	exit(1);
                		int pid = fork();
                		if (pid < 0)
                	exit(1);
                		if (pid == 0) {
                			if (chdir(cwdbuf))
                	exit(1);
                			execute_one();
                			exit(0);
                		}
                		int status = 0;
                		uint64_t start = current_time_ms();
                		for (;;) {
                			if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
                				break;
                			sleep_ms(1);
                			if (current_time_ms() - start < 5 * 1000)
                				continue;
                			kill_and_wait(pid, &status);
                			break;
                		}
                		remove_dir(cwdbuf);
                	}
                }
                
                uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
                
                void execute_call(int call)
                {
                		intptr_t res = 0;
                	switch (call) {
                	case 0:
                memcpy((void*)0x10000000, "\xec\x04\xa9\x04\xb9\xd2\xea\x02\xfa\xb2\xdf\x1d\x9d\xe3\x9f\x3f\x5a\xa2\x34\x43\x97\xe1\x86\x20\x4d\x39\xd7\x4d\xa1\x56\xe7\xc6\xcd\x98\x19\x5b\x7b\x83\xc6\x52\xb0\x6b\x62\x22\xbd\xef\x33\x63\x96\x1b\xf4\x7e\x9b\x53\x0f\xbf\x65\xba\xe3\x60\x7b\x60\x94\x1e\x27\x15\xbd\x67\x8f\xce\xbc\x55\x24\xbc\xef\xd3\x18\x4d", 78);
                		syscall(SYS_setsockopt, 0xffffff9c, 0, 0, 0x10000000, 0x4e);
                		break;
                	case 1:
                *(uint8_t*)0x10000180 = 0x10;
                *(uint32_t*)0x10000184 = 0x10000080;
                memcpy((void*)0x10000080, "\xde\x11\xc2\xa7\x74\x19\x1d\x70\xf5\x1e\x7c\x3e\x37\x5c\x28\x14\xac\x72\xc2\xd5\xd0\x40\x4a\x2e\x3d\x5b\xaf\x92\x16\x1f\x3b\x45\x1e\xfe\x9c\x4c\x79\xd7\x66\x06\x68\xf6\x07\x3e\x2f\x76\xc5\xf2\x14\x51\x95\xe8\xc1\xa4\xec\x34\xb6\xf6\x9c\x1b\x58\x27\x68\x20\x7b\x28\xa9\x79\xf0\x5a\xdc\x14\xa3\x35\x7f\xe7\xc4\x93\xfc\x81\xa9\x17\x75\x24\x63\x1b\xb2\x09\xbe\x63\x7f\x86\x95\x74\x7f\xa7\xcf\x1c\x68\xac\x69\x1f\x16\x9c\x1b\x8f\xb6\x7d\x7a\x37\x76\xdd\xfc\x62\x0f\xfb\xe6\x83\x1f\x74\xd2\xf2\xd0\x89\xa4\xff\xec\xf5\x10\xa9\x97\x02\x25\x8c\x58\xea\x9e\x87\x1d\x4f\x4a\xb9\xa3\x47\xaa\xbd\xbb\x03\x58\x5b\x37\xb5\xc7\x94\x36\xc0\xc1\x16\x0a\x58\x76\xb6\x1b\xbf\x0c\x81\x4b\xb4\x9a\x27\xa3\x60\x82\xdf\x13\xcb\x2f\x9d\xe2\xf9\x42\xb6\xac\x7e\x15\x88\x80\xcf\xc0\x3c\xfd\xcc\xca\x9f\xc0\xf2\x34\x7e\xb5\x43\xa3\x43\xb4\xc9\x27\x07\xfe\x73\x6a\x86\xa3\x5d\x58\xe2\x6f\x6f\xd2\xe9\xec\x8f\x82", 221);
                *(uint32_t*)0x10000188 = 7;
                *(uint32_t*)0x1000018c = 0x5a764000;
                *(uint32_t*)0x10000190 = 6;
                		syscall(SYS_ioctl, -1, 0xc0284459, 0x10000180);
                		break;
                	case 2:
                *(uint8_t*)0x10000200 = 0x1c;
                *(uint8_t*)0x10000201 = 0x1c;
                *(uint16_t*)0x10000202 = htobe16(0x4e23 + procid*4);
                *(uint32_t*)0x10000204 = 6;
                *(uint64_t*)0x10000208 = htobe64(0);
                *(uint64_t*)0x10000210 = htobe64(1);
                *(uint32_t*)0x10000218 = 0x2d99;
                		syscall(SYS_recvfrom, 0xffffff9c, 0x100001c0, 0x17, 2, 0x10000200, 0x1c);
                		break;
                	case 3:
                memcpy((void*)0x10000240, "./file0\000", 8);
                memcpy((void*)0x10000280, "\000", 1);
                		res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                		if (res != -1)
                				r[0] = res;
                		break;
                	case 4:
                *(uint32_t*)0x100015c0 = 0x10000540;
                *(uint32_t*)0x10000540 = 0x100002c0;
                memcpy((void*)0x100002c0, "\xef\xac\xad\xe5\x8a\xb0\x19\x23\x51\xa1\x02\xad\xa3\x2a\xd1\xf4\x1e\x42\x9e\xdf\x6c\x4a\x51\x3a\xc6\xd6\x69\xca\xdb\x22\x2e\xb6\x82\x97\xab\x8f\x9f\x7b\x32\x34\xd0\xc6\xcf\xa2\x80\xad\x14\xdc\x1c\x4c\x34\x17\x51\x19\x44\x6d\x79\xa0\x30\xd4\x8b\x57\x30\x4e\xb9\x0b\x42\x8c\x20\x23\x82\xd8\x6c\xd7\x1e\x9c\x1e\xcc\x8d\x3e\x2d\x76\x4a\xae\x37\x14\xcb\x59\x1e\xb0\x27\xe4\x69\x43\xe2\x3e\xb7\x65\x68\x75\x86\x7e\x60\x3c\xf1\x38\x92\xa7\x4c\x42\xbb\x18\x44\xc2\x7f\x7f\x45\x4f\x96\x61\xf1\xdb\xb3\x50\x04\xad\xa4\xd6\xd7\x5b\x1d\xf3\x42\xe9\x67\x49\x3d\x20\x7d\x6b\x8b\x4e\xdc\xbf\x9d\x1e\x37\x84\x45\x57\x36\x84\xed\x13\x9b\x67\x1a\xbf\x65\x76\xed\xf8\xd7\x34\x2c\xd8\x64\x9d\x37\x69\x70\xac\xbd\xe2\x24\xa7\xb0\xb6\xa9\x75\xa8\xba\x0a\x76\x8e\xd6\xab\xe1\x6c\x1b\x69\x4f\x65\xdd\x42\x31\xf4\x8c\x28\x84", 200);
                *(uint32_t*)0x10000544 = 0xc8;
                *(uint32_t*)0x10000548 = 0x100003c0;
                memcpy((void*)0x100003c0, "\xa6\xe4\xfe\x18\x6c\x76\x0a\xc2\xeb\xbc\xf9\xef\xda\x5e\x22\xe2\xdf\x6f\x15\x3f\xcc\xda\x1c\x16\x97\x60\x37\xd0\x3e\xe0\x04\xc3\xfb\xba\x5d\x35\xb6\xc0\x83\x13\x0f\xc7\x05\xf9\x58\x89\xba\x6a\xdb\xe5\xe3\xa7\xa5\xe7\x01\x36\xa0\xca\x08\x5b\x7e\x50\x4d\x0d\xf5\x5f\xe1\x84\xa9\xbd\x7a\x82", 72);
                *(uint32_t*)0x1000054c = 0x48;
                *(uint32_t*)0x10000550 = 0x10000440;
                memcpy((void*)0x10000440, "\xc7\xe0\x00\x30\xb3\xc4\x54\x17\x43\xee\x65\x13", 12);
                *(uint32_t*)0x10000554 = 0xc;
                *(uint32_t*)0x10000558 = 0x10000480;
                memcpy((void*)0x10000480, "\xa4\xa6\x7a\x4e\x72\x49\x2b\x9f\xab\x63\x79\xe4\xc0\xf3\x5b\x22\xb6\x9b\x6e\x7a\xef\xc5\x6b\xee\xfa\x85\x7a\xe2\x85\x43", 30);
                *(uint32_t*)0x1000055c = 0x1e;
                *(uint32_t*)0x10000560 = 0x100004c0;
                memcpy((void*)0x100004c0, "\x8f\x09\x5f\x8d\xf1\xc6\xbc\x4d\xfc\x1d\x82\x6f\x02\xdf\xa7\x79\x4b\xeb\xf9\xe7\xff\xc7\x16\x0f\x27\x6a\x53\xd1\xab\xc9\x96\xfc\xa8\xc8\xdb\xc7\xc7\x9c\x09\xcd\x5f\x95\x47\x75\xc9\xe8\xfc\x1c\xf2\xe0\xe3\xc0\x54\xfb\x54\xb6\x62\xd1\xb4\x5f\x52\x35\xfd\xbf\x86\x0c\x3f\xed\x3d\xc3\x4c\xeb\x30\xc4\x4b\xaa\x4d\xed\x7d\xe7\xe9\x53\x3f\x4d\xca\x14\x6d\xb0\xdb\x35\xa9\x3b\xa6\x54\xd4\x90\x11\xd9\xcb\x98\xd1\x57\x6b\x73\x1b\x9c\x2b\xb5\x8c\x0d\xf4\xed\xee\x6e\xf5\xae\x1f\x8b\x6b\xc9\x64\x6f\x5b\x4a\xde\x4d\xd5\x2a", 128);
                *(uint32_t*)0x10000564 = 0x80;
                *(uint32_t*)0x100015c4 = 5;
                *(uint32_t*)0x100015c8 = 0x10001580;
                *(uint32_t*)0x10001580 = 0x10000580;
                memcpy((void*)0x10000580, 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d\x78\x21\x78\x31\x91\xe0\x3b\x56\x82\xae\x7c\x0d\xad\xd4\xa9\x27\x24\xaa\xfc\xe0\x24\xae\x0a\xcc\x8e\x39\xcd\x3e\xaf\x4e\xde\x02\x49\x07\xe5\x09\x77\x22\x8d\xf4\xd3\xa6\xa4\x28\x88\x6f\xb2\x4f\x9a\xa1\x53\x66\xbc\xae\x6e\xbb\x17\x51\x40\x2b\x9f\x34\xa3\x85\x40\xc0\x92\x93\x04\x7f\xe9\x43\x73\xc1\x7a\x9c\xcc\xff\x1a\x1d\xe3\x22\xef\xc3\xfe\x33\x48\x01\xaa\x76\x44\x4d\xd0\xd4\xc0\x17\xfe\xb9\xd4\x53\xeb\x35\xf2\x1e\xfe\x33\x2e\xd9\xae\x75\x57\x1c\xa5\x77\x8e\xb4\xb6\x9d\x94\xf7\x69\xdb\xf0\x8c\xaf\xa0\x7a\x7f\x42\xf1\x2f\x8f\x2a\x9e\x3e\xb6\x97\x6e\x01\x62\xc3\xf2\x34\x51\xd9\x74\xc8\x7f\x60\x63\xbd\x31\xdb\x13\x85\x81\x1b\x55\x4c\x85\x50\xba\x51\x30\xf8\x8d\x79\x7a\x8b\xab\x3e\x01\xb2\x1e\x5f\xeb\xd2\xb0\xf6\x6e\x8f\x58\x42\xc1\x04\x10\x74\x28\x42\x3a\x8c\x8d\x39\x4c\x5e\x19\xea\x71\x75\x87\xa9\x2f\xe0\x70\xe5\xb4\x9e\xc4\xaf\x4b\xc6\x32\xe2\xf3\xe8\x0f\xa6\x51\x16\xf3\x8e\x12\xd8\xa2\x18\xf4\xf2\x36\x10\x5e\x39\x08\x02\xb3\xf9\x92\x16\x50\xba\x41\x81\x77\xf8\x33\x26\x18\x61\xab\xee\xbf\xae\xc3\x19\x89\x49\x2f\x7f\x02\xd1\xb0\x62\x16\x9d\x3b\xee\x9a\xa3\x99\xd3\xdf\xa9\xf9\x8d\x48\x29\xe9\x8f\xe7\x67\x23\x6f\x5d\xd9\x81\x09\x43\x9d\x31\x99\x9c\x03\x51\x9e\xa3\x8d\xe2\x5b\x3f\xe3\x8b\x42\x0f\xbe\x45\x52\xe9\xad\xed\xb3\x07\xfd\xff\xc9\x8e\xa4\x58\x6d\x60\xee\x31\x33\x28\xc5\xb6\xc3\xff\x50\x4e\xbe\xd2\x8f\x56\x69\x80\x16\xdd\x79\x6b\x9b\x9e\x85\x0d\x79\x18\xd8\xb8", 4096);
                *(uint32_t*)0x10001584 = 0x1000;
                *(uint32_t*)0x100015cc = 1;
                		syscall(SYS_sendfile, (intptr_t)r[0], 0xffffff9c, 8, 0x800ull, 0x100015c0, 0x10001600, 9);
                		break;
                	case 5:
                memcpy((void*)0x10001640, "\x6c\x81\x1b\xa5\x2c\x13\x9b\x40\xdc\x56\x80\xcb\x02\x75\xfd\xd4\x40\x46\x8e\x4d\xae\x07\xc7\x45\xba\x75\x8c\xb2\x66\x74\x2f\x46\x8f\xc4\x2d\xa0\x66\x9f\x60\x61\xcb\x2c\x9f\x92\x1e\x95\x34\x51\xb3\x13\x5e\x01\x74\xfe\x8e\xb1\xae\xbb\x2c\x3e\xb8\xa7\xfb\x3f\xc8\xde\xa1\x8e\x65\x2d\x01\xe7\x18\x4c\xa6\x5d\xce\x04\xf4\x67\x9a\xfe\xd2\x76\x6b\x06\x73\x49\xde\x7a\x5e\xf6\x0b\x58\x69\x92\x91\x9a\x20\x38\x2c\x0a\x1f\x20\xaf\x0c\x9c\x7f\xac\x61\xcf\x18\x38\x3e\x36\xfe\x56\x50\x2f\x5f\x26\xb8", 122);
                		syscall(SYS_ioctl, -1, 0xc0104453, 0x10001640);
                		break;
                	case 6:
                		res = syscall(SYS_freebsd10_pipe, 0x100016c0);
                		if (res != -1) {
                r[1] = *(uint32_t*)0x100016c0;
                r[2] = *(uint32_t*)0x100016c4;
                		}
                		break;
                	case 7:
                *(uint8_t*)0x10001700 = 0x10;
                *(uint8_t*)0x10001701 = 2;
                *(uint16_t*)0x10001702 = htobe16(0x4e23 + procid*4);
                *(uint32_t*)0x10001704 = htobe32(7);
                *(uint8_t*)0x10001708 = 0;
                *(uint8_t*)0x10001709 = 0;
                *(uint8_t*)0x1000170a = 0;
                *(uint8_t*)0x1000170b = 0;
                *(uint8_t*)0x1000170c = 0;
                *(uint8_t*)0x1000170d = 0;
                *(uint8_t*)0x1000170e = 0;
                *(uint8_t*)0x1000170f = 0;
                *(uint32_t*)0x10001740 = 0x10;
                		syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x8002, 0x10001700, 0x10001740);
                		break;
                	case 8:
                *(uint32_t*)0x100017c0 = 4;
                		syscall(SYS_getsockopt, -1, 0x84, 0x20, 0x10001780, 0x100017c0);
                		break;
                	case 9:
                *(uint32_t*)0x10001800 = 8;
                *(uint16_t*)0x10001804 = 0x1000;
                *(uint16_t*)0x10001806 = 0;
                *(uint16_t*)0x10001808 = 0x8000;
                *(uint16_t*)0x1000180a = 0x200;
                *(uint16_t*)0x1000180c = 0x4000;
                *(uint16_t*)0x1000180e = 0;
                *(uint16_t*)0x10001810 = 1;
                *(uint16_t*)0x10001812 = 0;
                *(uint32_t*)0x10001840 = 0x14;
                		syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x14, 0x10001800, 0x10001840);
                		break;
                	case 10:
                memcpy((void*)0x10000000, "\xc9\x0c\x8a\x7c\x33\x7f", 6);
                *(uint8_t*)0x10000006 = 0xaa;
                *(uint8_t*)0x10000007 = 0xaa;
                *(uint8_t*)0x10000008 = 0xaa;
                *(uint8_t*)0x10000009 = 0xaa;
                *(uint8_t*)0x1000000a = 0xaa;
                *(uint8_t*)0x1000000b = 0xaa;
                *(uint16_t*)0x1000000c = htobe16(0x8100);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 0, 3);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 3, 1);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 4, 12);
                *(uint16_t*)0x10000010 = htobe16(0x800);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 0x1c, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 4, 4, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 0, 2);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 2, 6);
                *(uint16_t*)0x10000014 = htobe16(0x81);
                *(uint16_t*)0x10000016 = htobe16(0x65);
                *(uint16_t*)0x10000018 = htobe16(5);
                *(uint8_t*)0x1000001a = 1;
                *(uint8_t*)0x1000001b = 0x46;
                *(uint16_t*)0x1000001c = htobe16(0);
                *(uint32_t*)0x1000001e = htobe32(-1);
                *(uint8_t*)0x10000022 = 0xac;
                *(uint8_t*)0x10000023 = 0x14;
                *(uint8_t*)0x10000024 = 0 + procid*1;
                *(uint8_t*)0x10000025 = 0xbb;
                *(uint8_t*)0x10000026 = 0;
                *(uint8_t*)0x10000027 = 0x44;
                *(uint8_t*)0x10000028 = 0xc;
                *(uint8_t*)0x10000029 = 5;
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 0, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 3, 4, 4);
                *(uint32_t*)0x1000002b = htobe32(9);
                *(uint32_t*)0x1000002f = htobe32(4);
                *(uint8_t*)0x10000033 = 0x83;
                *(uint8_t*)0x10000034 = 0xb;
                *(uint8_t*)0x10000035 = 6;
                *(uint32_t*)0x10000036 = htobe32(0xe0000001);
                *(uint32_t*)0x1000003a = htobe32(-1);
                *(uint8_t*)0x1000003e = 0;
                *(uint8_t*)0x1000003f = 4;
                memcpy((void*)0x10000040, "\xa4\xd4", 2);
                *(uint8_t*)0x10000042 = 0x89;
                *(uint8_t*)0x10000043 = 0x13;
                *(uint8_t*)0x10000044 = 4;
                *(uint8_t*)0x10000045 = 0xac;
                *(uint8_t*)0x10000046 = 0x14;
                *(uint8_t*)0x10000047 = 0 + procid*1;
                *(uint8_t*)0x10000048 = 0xbb;
                *(uint32_t*)0x10000049 = htobe32(-1);
                *(uint8_t*)0x1000004d = 0xac;
                *(uint8_t*)0x1000004e = 0x14;
                *(uint8_t*)0x1000004f = 0 + procid*1;
                *(uint8_t*)0x10000050 = 0xbb;
                *(uint32_t*)0x10000051 = htobe32(0);
                *(uint8_t*)0x10000055 = 0x94;
                *(uint8_t*)0x10000056 = 6;
                *(uint32_t*)0x10000057 = htobe32(9);
                *(uint8_t*)0x1000005b = 0x94;
                *(uint8_t*)0x1000005c = 6;
                *(uint32_t*)0x1000005d = htobe32(0x80000001);
                *(uint8_t*)0x10000061 = 1;
                *(uint8_t*)0x10000062 = 0x83;
                *(uint8_t*)0x10000063 = 0x1f;
                *(uint8_t*)0x10000064 = 2;
                *(uint32_t*)0x10000065 = htobe32(0xe0000002);
                *(uint32_t*)0x10000069 = htobe32(0xe0000001);
                *(uint32_t*)0x1000006d = htobe32(0x7f000001);
                *(uint32_t*)0x10000071 = htobe32(0);
                *(uint32_t*)0x10000075 = htobe32(0x7f000001);
                *(uint32_t*)0x10000079 = htobe32(0x7f000001);
                *(uint32_t*)0x1000007d = htobe32(0xe0000001);
                memcpy((void*)0x10000082, "\x8d\x86\x2d\x09\x9b\x6b\xb2\xba\x6a\xea\xa6\xab\xd3\xe9\xd5\x82\xc9", 17);
                		struct csum_inet csum_1;
                		csum_inet_init(&csum_1);
                csum_inet_update(&csum_1, (const uint8_t*)0x10000012, 112);
                *(uint16_t*)0x1000001c = csum_inet_digest(&csum_1);
                		break;
                	case 11:
                memcpy((void*)0x100000c0, "\xc4\xe1\xf5\xf3\x7b\x05\xc4\xc2\xf5\x47\x52\x5a\x80\x8f\x4e\x00\x00\x00\x00\x66\x0f\x38\x1d\xbc\x60\x07\x00\x00\x00\xc4\xe2\xad\x91\x74\xae\x7e\x81\xfe\x00\x00\x00\x00\x8f\xe9\xa0\x99\xd8\xe4\xff\xc4\xc1\x93\x5c\x17\xc4\xc3\xe1\x41\xae\x2f\x10\x9d\xc2\xd8", 64);
                syz_execute_func(0x100000c0);
                		break;
                	case 12:
                		break;
                	}
                
                }
                int main(void)
                {
                		syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
                	for (procid = 0; procid < 2; procid++) {
                		if (fork() == 0) {
                			use_temporary_dir();
                			do_sandbox_none();
                		}
                	}
                	sleep(1000000);
                	return 0;
                }
                
                <stdin>:372:17: error: use of undeclared identifier 'SYS_shm_open2'
                                res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                                              ^
                1 error generated.
                
                compiler invocation: clang [-o /tmp/syz-executor346413910 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow]
        --- FAIL: TestGenerate/freebsd/386/4 (1.56s)
            csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:10 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false}
                program:
                setsockopt$inet_opts(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000000)="ec04a904b9d2ea02fab2df1d9de39f3f5aa2344397e186204d39d74da156e7c6cd98195b7b83c652b06b6222bdef3363961bf47e9b530fbf65bae3607b60941e2715bd678fcebc5524bcefd3184d", 0x4e)
                ioctl$DIOCSETIFFLAG(0xffffffffffffffff, 0xc0284459, &(0x7f0000000180)={0x10, &(0x7f0000000080)="de11c2a774191d70f51e7c3e375c2814ac72c2d5d0404a2e3d5baf92161f3b451efe9c4c79d7660668f6073e2f76c5f2145195e8c1a4ec34b6f69c1b582768207b28a979f05adc14a3357fe7c493fc81a9177524631bb209be637f8695747fa7cf1c68ac691f169c1b8fb67d7a3776ddfc620ffbe6831f74d2f2d089a4ffecf510a99702258c58ea9e871d4f4ab9a347aabdbb03585b37b5c79436c0c1160a5876b61bbf0c814bb49a27a36082df13cb2f9de2f942b6ac7e158880cfc03cfdccca9fc0f2347eb543a343b4c92707fe736a86a35d58e26f6fd2e9ec8f82", 0x7, 0x5a764000, 0x6})
                recvfrom$inet6(0xffffffffffffff9c, &(0x7f00000001c0)=""/23, 0x17, 0x2, &(0x7f0000000200)={0x1c, 0x1c, 0x3, 0x6, @loopback, 0x2d99}, 0x1c)
                r0 = shm_open2(&(0x7f0000000240)='./file0\x00', 0x800, 0x0, 0x7, &(0x7f0000000280)='\x00')
                sendfile(r0, 0xffffffffffffff9c, 0x8, 0x800, &(0x7f00000015c0)={&(0x7f0000000540)=[{&(0x7f00000002c0)="efacade58ab0192351a102ada32ad1f41e429edf6c4a513ac6d669cadb222eb68297ab8f9f7b3234d0c6cfa280ad14dc1c4c34175119446d79a030d48b57304eb90b428c202382d86cd71e9c1ecc8d3e2d764aae3714cb591eb027e46943e23eb7656875867e603cf13892a74c42bb1844c27f7f454f9661f1dbb35004ada4d6d75b1df342e967493d207d6b8b4edcbf9d1e378445573684ed139b671abf6576edf8d7342cd8649d376970acbde224a7b0b6a975a8ba0a768ed6abe16c1b694f65dd4231f48c2884", 0xc8}, {&(0x7f00000003c0)="a6e4fe186c760ac2ebbcf9efda5e22e2df6f153fccda1c16976037d03ee004c3fbba5d35b6c083130fc705f95889ba6adbe5e3a7a5e70136a0ca085b7e504d0df55fe184a9bd7a82", 0x48}, {&(0x7f0000000440)="c7e00030b3c4541743ee6513", 0xc}, {&(0x7f0000000480)="a4a67a4e72492b9fab6379e4c0f35b22b69b6e7aefc56beefa857ae28543", 0x1e}, {&(0x7f00000004c0)="8f095f8df1c6bc4dfc1d826f02dfa7794bebf9e7ffc7160f276a53d1abc996fca8c8dbc7c79c09cd5f954775c9e8fc1cf2e0e3c054fb54b662d1b45f5235fdbf860c3fed3dc34ceb30c44baa4ded7de7e9533f4dca146db0db35a93ba654d49011d9cb98d1576b731b9c2bb58c0df4edee6ef5ae1f8b6bc9646f5b4ade4dd52a", 0x80}], 0x5, &(0x7f0000001580)=[{&(0x7f0000000580)="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", 0x1000}], 0x1}, &(0x7f0000001600), 0x9)
                ioctl$DIOCXROLLBACK(0xffffffffffffffff, 0xc0104453, &(0x7f0000001640)="6c811ba52c139b40dc5680cb0275fdd440468e4dae07c745ba758cb266742f468fc42da0669f6061cb2c9f921e953451b3135e0174fe8eb1aebb2c3eb8a7fb3fc8dea18e652d01e7184ca65dce04f4679afed2766b067349de7a5ef60b586992919a20382c0a1f20af0c9c7fac61cf18383e36fe56502f5f26b8")
                freebsd10_pipe(&(0x7f00000016c0)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
                setsockopt$inet6_sctp_SCTP_BINDX_REM_ADDR(r2, 0x84, 0x8002, &(0x7f0000001700)=@in={0x10, 0x2, 0x3, @rand_addr=0x7}, &(0x7f0000001740)=0x10)
                getsockopt$inet6_sctp_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000001780), &(0x7f00000017c0)=0x4)
                getsockopt$inet6_sctp_SCTP_HMAC_IDENT(r1, 0x84, 0x14, &(0x7f0000001800)={0x8, [0x1000, 0x0, 0x8000, 0x200, 0x4000, 0x0, 0x1, 0x0]}, &(0x7f0000001840)=0x14)
                syz_emit_ethernet(0x93, &(0x7f0000000000)={@random="c90c8a7c337f", @local, [{}], {@ipv4={0x800, {{0x1c, 0x4, 0x0, 0x0, 0x81, 0x65, 0x5, 0x1, 0x46, 0x0, @broadcast, @remote={0xac, 0x14, 0x0}, {[@end, @timestamp={0x44, 0xc, 0x5, 0x0, 0x3, [{[], 0x9}, {[], 0x4}]}, @lsrr={0x83, 0xb, 0x6, [@multicast1, @broadcast]}, @generic={0x0, 0x4, "a4d4"}, @ssrr={0x89, 0x13, 0x4, [@remote={0xac, 0x14, 0x0}, @broadcast, @remote={0xac, 0x14, 0x0}, @empty]}, @ra={0x94, 0x6, 0x9}, @ra={0x94, 0x6, 0x80000001}, @noop, @lsrr={0x83, 0x1f, 0x2, [@multicast2, @multicast1, @loopback, @empty, @loopback, @loopback, @multicast1]}]}}, @generic="8d862d099b6bb2ba6aeaa6abd3e9d582c9"}}}})
                syz_execute_func(&(0x7f00000000c0)="c4e1f5f37b05c4c2f547525a808f4e00000000660f381dbc6007000000c4e2ad9174ae7e81fe000000008fe9a099d8e4ffc4c1935c17c4c3e141ae2f109dc2d8")
                syz_extract_tcp_res(&(0x7f0000000100), 0x5, 0x7ff)
                
            csource_test.go:124: failed to build program:
                // autogenerated by syzkaller (https://github.com/google/syzkaller)
                
                #define _GNU_SOURCE 
                
                #include <sys/types.h>
                
                #include <dirent.h>
                #include <errno.h>
                #include <pthread.h>
                #include <pwd.h>
                #include <signal.h>
                #include <stdarg.h>
                #include <stdbool.h>
                #include <stdint.h>
                #include <stdio.h>
                #include <stdlib.h>
                #include <string.h>
                #include <sys/endian.h>
                #include <sys/resource.h>
                #include <sys/stat.h>
                #include <sys/syscall.h>
                #include <sys/wait.h>
                #include <time.h>
                #include <unistd.h>
                
                static void kill_and_wait(int pid, int* status)
                {
                	kill(pid, SIGKILL);
                	while (waitpid(-1, status, 0) != pid) {
                	}
                }
                
                static void sleep_ms(uint64_t ms)
                {
                	usleep(ms * 1000);
                }
                
                static uint64_t current_time_ms(void)
                {
                	struct timespec ts;
                	if (clock_gettime(CLOCK_MONOTONIC, &ts))
                	exit(1);
                	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
                }
                
                static void use_temporary_dir(void)
                {
                	char tmpdir_template[] = "./syzkaller.XXXXXX";
                	char* tmpdir = mkdtemp(tmpdir_template);
                	if (!tmpdir)
                	exit(1);
                	if (chmod(tmpdir, 0777))
                	exit(1);
                	if (chdir(tmpdir))
                	exit(1);
                }
                
                static void __attribute__((noinline)) remove_dir(const char* dir)
                {
                	DIR* dp = opendir(dir);
                	if (dp == NULL) {
                		if (errno == EACCES) {
                			if (rmdir(dir))
                	exit(1);
                			return;
                		}
                	exit(1);
                	}
                	struct dirent* ep = 0;
                	while ((ep = readdir(dp))) {
                		if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
                			continue;
                		char filename[FILENAME_MAX];
                		snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
                		struct stat st;
                		if (lstat(filename, &st))
                	exit(1);
                		if (S_ISDIR(st.st_mode)) {
                			remove_dir(filename);
                			continue;
                		}
                		if (unlink(filename))
                	exit(1);
                	}
                	closedir(dp);
                	if (rmdir(dir))
                	exit(1);
                }
                
                static void thread_start(void* (*fn)(void*), void* arg)
                {
                	pthread_t th;
                	pthread_attr_t attr;
                	pthread_attr_init(&attr);
                	pthread_attr_setstacksize(&attr, 128 << 10);
                	int i = 0;
                	for (; i < 100; i++) {
                		if (pthread_create(&th, &attr, fn, arg) == 0) {
                			pthread_attr_destroy(&attr);
                			return;
                		}
                		if (errno == EAGAIN) {
                			usleep(50);
                			continue;
                		}
                		break;
                	}
                	exit(1);
                }
                
                typedef struct {
                	pthread_mutex_t mu;
                	pthread_cond_t cv;
                	int state;
                } event_t;
                
                static void event_init(event_t* ev)
                {
                	if (pthread_mutex_init(&ev->mu, 0))
                	exit(1);
                	if (pthread_cond_init(&ev->cv, 0))
                	exit(1);
                	ev->state = 0;
                }
                
                static void event_reset(event_t* ev)
                {
                	ev->state = 0;
                }
                
                static void event_set(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	if (ev->state)
                	exit(1);
                	ev->state = 1;
                	pthread_mutex_unlock(&ev->mu);
                	pthread_cond_broadcast(&ev->cv);
                }
                
                static void event_wait(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	while (!ev->state)
                		pthread_cond_wait(&ev->cv, &ev->mu);
                	pthread_mutex_unlock(&ev->mu);
                }
                
                static int event_isset(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                static int event_timedwait(event_t* ev, uint64_t timeout)
                {
                	uint64_t start = current_time_ms();
                	uint64_t now = start;
                	pthread_mutex_lock(&ev->mu);
                	for (;;) {
                		if (ev->state)
                			break;
                		uint64_t remain = timeout - (now - start);
                		struct timespec ts;
                		ts.tv_sec = remain / 1000;
                		ts.tv_nsec = (remain % 1000) * 1000 * 1000;
                		pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
                		now = current_time_ms();
                		if (now - start > timeout)
                			break;
                	}
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
                #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
                
                struct csum_inet {
                	uint32_t acc;
                };
                
                static void csum_inet_init(struct csum_inet* csum)
                {
                	csum->acc = 0;
                }
                
                static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
                {
                	if (length == 0)
                		return;
                	size_t i = 0;
                	for (; i < length - 1; i += 2)
                		csum->acc += *(uint16_t*)&data[i];
                	if (length & 1)
                		csum->acc += le16toh((uint16_t)data[length - 1]);
                	while (csum->acc > 0xffff)
                		csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
                }
                
                static uint16_t csum_inet_digest(struct csum_inet* csum)
                {
                	return ~csum->acc;
                }
                
                static void sandbox_common()
                {
                	if (setsid() == -1)
                	exit(1);
                	struct rlimit rlim;
                	rlim.rlim_cur = rlim.rlim_max = 128 << 20;
                	setrlimit(RLIMIT_AS, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 8 << 20;
                	setrlimit(RLIMIT_MEMLOCK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_FSIZE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_STACK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 0;
                	setrlimit(RLIMIT_CORE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 256;
                	setrlimit(RLIMIT_NOFILE, &rlim);
                }
                
                static void loop();
                
                static int do_sandbox_none(void)
                {
                	sandbox_common();
                	loop();
                	return 0;
                }
                
                static long syz_execute_func(volatile long text)
                {
                	((void (*)(void))(text))();
                	return 0;
                }
                
                struct thread_t {
                	int created, call;
                	event_t ready, done;
                };
                
                static struct thread_t threads[16];
                static void execute_call(int call);
                static int running;
                
                static void* thr(void* arg)
                {
                	struct thread_t* th = (struct thread_t*)arg;
                	for (;;) {
                		event_wait(&th->ready);
                		event_reset(&th->ready);
                		execute_call(th->call);
                		__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
                		event_set(&th->done);
                	}
                	return 0;
                }
                
                static void execute_one(void)
                {
                	int i, call, thread;
                	for (call = 0; call < 13; call++) {
                		for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
                			struct thread_t* th = &threads[thread];
                			if (!th->created) {
                				th->created = 1;
                				event_init(&th->ready);
                				event_init(&th->done);
                				event_set(&th->done);
                				thread_start(thr, th);
                			}
                			if (!event_isset(&th->done))
                				continue;
                			event_reset(&th->done);
                			th->call = call;
                			__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
                			event_set(&th->ready);
                			event_timedwait(&th->done, 45);
                			break;
                		}
                	}
                	for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
                		sleep_ms(1);
                }
                
                static void execute_one(void);
                
                #define WAIT_FLAGS 0
                
                static void loop(void)
                {
                	int iter = 0;
                	for (; iter < 10; iter++) {
                		char cwdbuf[32];
                		sprintf(cwdbuf, "./%d", iter);
                		if (mkdir(cwdbuf, 0777))
                	exit(1);
                		int pid = fork();
                		if (pid < 0)
                	exit(1);
                		if (pid == 0) {
                			if (chdir(cwdbuf))
                	exit(1);
                			execute_one();
                			exit(0);
                		}
                		int status = 0;
                		uint64_t start = current_time_ms();
                		for (;;) {
                			if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
                				break;
                			sleep_ms(1);
                			if (current_time_ms() - start < 5 * 1000)
                				continue;
                			kill_and_wait(pid, &status);
                			break;
                		}
                		remove_dir(cwdbuf);
                	}
                }
                
                uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
                
                void execute_call(int call)
                {
                		intptr_t res = 0;
                	switch (call) {
                	case 0:
                memcpy((void*)0x10000000, "\xec\x04\xa9\x04\xb9\xd2\xea\x02\xfa\xb2\xdf\x1d\x9d\xe3\x9f\x3f\x5a\xa2\x34\x43\x97\xe1\x86\x20\x4d\x39\xd7\x4d\xa1\x56\xe7\xc6\xcd\x98\x19\x5b\x7b\x83\xc6\x52\xb0\x6b\x62\x22\xbd\xef\x33\x63\x96\x1b\xf4\x7e\x9b\x53\x0f\xbf\x65\xba\xe3\x60\x7b\x60\x94\x1e\x27\x15\xbd\x67\x8f\xce\xbc\x55\x24\xbc\xef\xd3\x18\x4d", 78);
                		syscall(SYS_setsockopt, 0xffffff9c, 0, 0, 0x10000000, 0x4e);
                		break;
                	case 1:
                *(uint8_t*)0x10000180 = 0x10;
                *(uint32_t*)0x10000184 = 0x10000080;
                memcpy((void*)0x10000080, "\xde\x11\xc2\xa7\x74\x19\x1d\x70\xf5\x1e\x7c\x3e\x37\x5c\x28\x14\xac\x72\xc2\xd5\xd0\x40\x4a\x2e\x3d\x5b\xaf\x92\x16\x1f\x3b\x45\x1e\xfe\x9c\x4c\x79\xd7\x66\x06\x68\xf6\x07\x3e\x2f\x76\xc5\xf2\x14\x51\x95\xe8\xc1\xa4\xec\x34\xb6\xf6\x9c\x1b\x58\x27\x68\x20\x7b\x28\xa9\x79\xf0\x5a\xdc\x14\xa3\x35\x7f\xe7\xc4\x93\xfc\x81\xa9\x17\x75\x24\x63\x1b\xb2\x09\xbe\x63\x7f\x86\x95\x74\x7f\xa7\xcf\x1c\x68\xac\x69\x1f\x16\x9c\x1b\x8f\xb6\x7d\x7a\x37\x76\xdd\xfc\x62\x0f\xfb\xe6\x83\x1f\x74\xd2\xf2\xd0\x89\xa4\xff\xec\xf5\x10\xa9\x97\x02\x25\x8c\x58\xea\x9e\x87\x1d\x4f\x4a\xb9\xa3\x47\xaa\xbd\xbb\x03\x58\x5b\x37\xb5\xc7\x94\x36\xc0\xc1\x16\x0a\x58\x76\xb6\x1b\xbf\x0c\x81\x4b\xb4\x9a\x27\xa3\x60\x82\xdf\x13\xcb\x2f\x9d\xe2\xf9\x42\xb6\xac\x7e\x15\x88\x80\xcf\xc0\x3c\xfd\xcc\xca\x9f\xc0\xf2\x34\x7e\xb5\x43\xa3\x43\xb4\xc9\x27\x07\xfe\x73\x6a\x86\xa3\x5d\x58\xe2\x6f\x6f\xd2\xe9\xec\x8f\x82", 221);
                *(uint32_t*)0x10000188 = 7;
                *(uint32_t*)0x1000018c = 0x5a764000;
                *(uint32_t*)0x10000190 = 6;
                		syscall(SYS_ioctl, -1, 0xc0284459, 0x10000180);
                		break;
                	case 2:
                *(uint8_t*)0x10000200 = 0x1c;
                *(uint8_t*)0x10000201 = 0x1c;
                *(uint16_t*)0x10000202 = htobe16(0x4e23);
                *(uint32_t*)0x10000204 = 6;
                *(uint64_t*)0x10000208 = htobe64(0);
                *(uint64_t*)0x10000210 = htobe64(1);
                *(uint32_t*)0x10000218 = 0x2d99;
                		syscall(SYS_recvfrom, 0xffffff9c, 0x100001c0, 0x17, 2, 0x10000200, 0x1c);
                		break;
                	case 3:
                memcpy((void*)0x10000240, "./file0\000", 8);
                memcpy((void*)0x10000280, "\000", 1);
                		res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                		if (res != -1)
                				r[0] = res;
                		break;
                	case 4:
                *(uint32_t*)0x100015c0 = 0x10000540;
                *(uint32_t*)0x10000540 = 0x100002c0;
                memcpy((void*)0x100002c0, "\xef\xac\xad\xe5\x8a\xb0\x19\x23\x51\xa1\x02\xad\xa3\x2a\xd1\xf4\x1e\x42\x9e\xdf\x6c\x4a\x51\x3a\xc6\xd6\x69\xca\xdb\x22\x2e\xb6\x82\x97\xab\x8f\x9f\x7b\x32\x34\xd0\xc6\xcf\xa2\x80\xad\x14\xdc\x1c\x4c\x34\x17\x51\x19\x44\x6d\x79\xa0\x30\xd4\x8b\x57\x30\x4e\xb9\x0b\x42\x8c\x20\x23\x82\xd8\x6c\xd7\x1e\x9c\x1e\xcc\x8d\x3e\x2d\x76\x4a\xae\x37\x14\xcb\x59\x1e\xb0\x27\xe4\x69\x43\xe2\x3e\xb7\x65\x68\x75\x86\x7e\x60\x3c\xf1\x38\x92\xa7\x4c\x42\xbb\x18\x44\xc2\x7f\x7f\x45\x4f\x96\x61\xf1\xdb\xb3\x50\x04\xad\xa4\xd6\xd7\x5b\x1d\xf3\x42\xe9\x67\x49\x3d\x20\x7d\x6b\x8b\x4e\xdc\xbf\x9d\x1e\x37\x84\x45\x57\x36\x84\xed\x13\x9b\x67\x1a\xbf\x65\x76\xed\xf8\xd7\x34\x2c\xd8\x64\x9d\x37\x69\x70\xac\xbd\xe2\x24\xa7\xb0\xb6\xa9\x75\xa8\xba\x0a\x76\x8e\xd6\xab\xe1\x6c\x1b\x69\x4f\x65\xdd\x42\x31\xf4\x8c\x28\x84", 200);
                *(uint32_t*)0x10000544 = 0xc8;
                *(uint32_t*)0x10000548 = 0x100003c0;
                memcpy((void*)0x100003c0, "\xa6\xe4\xfe\x18\x6c\x76\x0a\xc2\xeb\xbc\xf9\xef\xda\x5e\x22\xe2\xdf\x6f\x15\x3f\xcc\xda\x1c\x16\x97\x60\x37\xd0\x3e\xe0\x04\xc3\xfb\xba\x5d\x35\xb6\xc0\x83\x13\x0f\xc7\x05\xf9\x58\x89\xba\x6a\xdb\xe5\xe3\xa7\xa5\xe7\x01\x36\xa0\xca\x08\x5b\x7e\x50\x4d\x0d\xf5\x5f\xe1\x84\xa9\xbd\x7a\x82", 72);
                *(uint32_t*)0x1000054c = 0x48;
                *(uint32_t*)0x10000550 = 0x10000440;
                memcpy((void*)0x10000440, "\xc7\xe0\x00\x30\xb3\xc4\x54\x17\x43\xee\x65\x13", 12);
                *(uint32_t*)0x10000554 = 0xc;
                *(uint32_t*)0x10000558 = 0x10000480;
                memcpy((void*)0x10000480, "\xa4\xa6\x7a\x4e\x72\x49\x2b\x9f\xab\x63\x79\xe4\xc0\xf3\x5b\x22\xb6\x9b\x6e\x7a\xef\xc5\x6b\xee\xfa\x85\x7a\xe2\x85\x43", 30);
                *(uint32_t*)0x1000055c = 0x1e;
                *(uint32_t*)0x10000560 = 0x100004c0;
                memcpy((void*)0x100004c0, "\x8f\x09\x5f\x8d\xf1\xc6\xbc\x4d\xfc\x1d\x82\x6f\x02\xdf\xa7\x79\x4b\xeb\xf9\xe7\xff\xc7\x16\x0f\x27\x6a\x53\xd1\xab\xc9\x96\xfc\xa8\xc8\xdb\xc7\xc7\x9c\x09\xcd\x5f\x95\x47\x75\xc9\xe8\xfc\x1c\xf2\xe0\xe3\xc0\x54\xfb\x54\xb6\x62\xd1\xb4\x5f\x52\x35\xfd\xbf\x86\x0c\x3f\xed\x3d\xc3\x4c\xeb\x30\xc4\x4b\xaa\x4d\xed\x7d\xe7\xe9\x53\x3f\x4d\xca\x14\x6d\xb0\xdb\x35\xa9\x3b\xa6\x54\xd4\x90\x11\xd9\xcb\x98\xd1\x57\x6b\x73\x1b\x9c\x2b\xb5\x8c\x0d\xf4\xed\xee\x6e\xf5\xae\x1f\x8b\x6b\xc9\x64\x6f\x5b\x4a\xde\x4d\xd5\x2a", 128);
                *(uint32_t*)0x10000564 = 0x80;
                *(uint32_t*)0x100015c4 = 5;
                *(uint32_t*)0x100015c8 = 0x10001580;
                *(uint32_t*)0x10001580 = 0x10000580;
                memcpy((void*)0x10000580, 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d\x78\x21\x78\x31\x91\xe0\x3b\x56\x82\xae\x7c\x0d\xad\xd4\xa9\x27\x24\xaa\xfc\xe0\x24\xae\x0a\xcc\x8e\x39\xcd\x3e\xaf\x4e\xde\x02\x49\x07\xe5\x09\x77\x22\x8d\xf4\xd3\xa6\xa4\x28\x88\x6f\xb2\x4f\x9a\xa1\x53\x66\xbc\xae\x6e\xbb\x17\x51\x40\x2b\x9f\x34\xa3\x85\x40\xc0\x92\x93\x04\x7f\xe9\x43\x73\xc1\x7a\x9c\xcc\xff\x1a\x1d\xe3\x22\xef\xc3\xfe\x33\x48\x01\xaa\x76\x44\x4d\xd0\xd4\xc0\x17\xfe\xb9\xd4\x53\xeb\x35\xf2\x1e\xfe\x33\x2e\xd9\xae\x75\x57\x1c\xa5\x77\x8e\xb4\xb6\x9d\x94\xf7\x69\xdb\xf0\x8c\xaf\xa0\x7a\x7f\x42\xf1\x2f\x8f\x2a\x9e\x3e\xb6\x97\x6e\x01\x62\xc3\xf2\x34\x51\xd9\x74\xc8\x7f\x60\x63\xbd\x31\xdb\x13\x85\x81\x1b\x55\x4c\x85\x50\xba\x51\x30\xf8\x8d\x79\x7a\x8b\xab\x3e\x01\xb2\x1e\x5f\xeb\xd2\xb0\xf6\x6e\x8f\x58\x42\xc1\x04\x10\x74\x28\x42\x3a\x8c\x8d\x39\x4c\x5e\x19\xea\x71\x75\x87\xa9\x2f\xe0\x70\xe5\xb4\x9e\xc4\xaf\x4b\xc6\x32\xe2\xf3\xe8\x0f\xa6\x51\x16\xf3\x8e\x12\xd8\xa2\x18\xf4\xf2\x36\x10\x5e\x39\x08\x02\xb3\xf9\x92\x16\x50\xba\x41\x81\x77\xf8\x33\x26\x18\x61\xab\xee\xbf\xae\xc3\x19\x89\x49\x2f\x7f\x02\xd1\xb0\x62\x16\x9d\x3b\xee\x9a\xa3\x99\xd3\xdf\xa9\xf9\x8d\x48\x29\xe9\x8f\xe7\x67\x23\x6f\x5d\xd9\x81\x09\x43\x9d\x31\x99\x9c\x03\x51\x9e\xa3\x8d\xe2\x5b\x3f\xe3\x8b\x42\x0f\xbe\x45\x52\xe9\xad\xed\xb3\x07\xfd\xff\xc9\x8e\xa4\x58\x6d\x60\xee\x31\x33\x28\xc5\xb6\xc3\xff\x50\x4e\xbe\xd2\x8f\x56\x69\x80\x16\xdd\x79\x6b\x9b\x9e\x85\x0d\x79\x18\xd8\xb8", 4096);
                *(uint32_t*)0x10001584 = 0x1000;
                *(uint32_t*)0x100015cc = 1;
                		syscall(SYS_sendfile, (intptr_t)r[0], 0xffffff9c, 8, 0x800ull, 0x100015c0, 0x10001600, 9);
                		break;
                	case 5:
                memcpy((void*)0x10001640, "\x6c\x81\x1b\xa5\x2c\x13\x9b\x40\xdc\x56\x80\xcb\x02\x75\xfd\xd4\x40\x46\x8e\x4d\xae\x07\xc7\x45\xba\x75\x8c\xb2\x66\x74\x2f\x46\x8f\xc4\x2d\xa0\x66\x9f\x60\x61\xcb\x2c\x9f\x92\x1e\x95\x34\x51\xb3\x13\x5e\x01\x74\xfe\x8e\xb1\xae\xbb\x2c\x3e\xb8\xa7\xfb\x3f\xc8\xde\xa1\x8e\x65\x2d\x01\xe7\x18\x4c\xa6\x5d\xce\x04\xf4\x67\x9a\xfe\xd2\x76\x6b\x06\x73\x49\xde\x7a\x5e\xf6\x0b\x58\x69\x92\x91\x9a\x20\x38\x2c\x0a\x1f\x20\xaf\x0c\x9c\x7f\xac\x61\xcf\x18\x38\x3e\x36\xfe\x56\x50\x2f\x5f\x26\xb8", 122);
                		syscall(SYS_ioctl, -1, 0xc0104453, 0x10001640);
                		break;
                	case 6:
                		res = syscall(SYS_freebsd10_pipe, 0x100016c0);
                		if (res != -1) {
                r[1] = *(uint32_t*)0x100016c0;
                r[2] = *(uint32_t*)0x100016c4;
                		}
                		break;
                	case 7:
                *(uint8_t*)0x10001700 = 0x10;
                *(uint8_t*)0x10001701 = 2;
                *(uint16_t*)0x10001702 = htobe16(0x4e23);
                *(uint32_t*)0x10001704 = htobe32(7);
                *(uint8_t*)0x10001708 = 0;
                *(uint8_t*)0x10001709 = 0;
                *(uint8_t*)0x1000170a = 0;
                *(uint8_t*)0x1000170b = 0;
                *(uint8_t*)0x1000170c = 0;
                *(uint8_t*)0x1000170d = 0;
                *(uint8_t*)0x1000170e = 0;
                *(uint8_t*)0x1000170f = 0;
                *(uint32_t*)0x10001740 = 0x10;
                		syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x8002, 0x10001700, 0x10001740);
                		break;
                	case 8:
                *(uint32_t*)0x100017c0 = 4;
                		syscall(SYS_getsockopt, -1, 0x84, 0x20, 0x10001780, 0x100017c0);
                		break;
                	case 9:
                *(uint32_t*)0x10001800 = 8;
                *(uint16_t*)0x10001804 = 0x1000;
                *(uint16_t*)0x10001806 = 0;
                *(uint16_t*)0x10001808 = 0x8000;
                *(uint16_t*)0x1000180a = 0x200;
                *(uint16_t*)0x1000180c = 0x4000;
                *(uint16_t*)0x1000180e = 0;
                *(uint16_t*)0x10001810 = 1;
                *(uint16_t*)0x10001812 = 0;
                *(uint32_t*)0x10001840 = 0x14;
                		syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x14, 0x10001800, 0x10001840);
                		break;
                	case 10:
                memcpy((void*)0x10000000, "\xc9\x0c\x8a\x7c\x33\x7f", 6);
                *(uint8_t*)0x10000006 = 0xaa;
                *(uint8_t*)0x10000007 = 0xaa;
                *(uint8_t*)0x10000008 = 0xaa;
                *(uint8_t*)0x10000009 = 0xaa;
                *(uint8_t*)0x1000000a = 0xaa;
                *(uint8_t*)0x1000000b = 0xaa;
                *(uint16_t*)0x1000000c = htobe16(0x8100);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 0, 3);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 3, 1);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 4, 12);
                *(uint16_t*)0x10000010 = htobe16(0x800);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 0x1c, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 4, 4, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 0, 2);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 2, 6);
                *(uint16_t*)0x10000014 = htobe16(0x81);
                *(uint16_t*)0x10000016 = htobe16(0x65);
                *(uint16_t*)0x10000018 = htobe16(5);
                *(uint8_t*)0x1000001a = 1;
                *(uint8_t*)0x1000001b = 0x46;
                *(uint16_t*)0x1000001c = htobe16(0);
                *(uint32_t*)0x1000001e = htobe32(-1);
                *(uint8_t*)0x10000022 = 0xac;
                *(uint8_t*)0x10000023 = 0x14;
                *(uint8_t*)0x10000024 = 0;
                *(uint8_t*)0x10000025 = 0xbb;
                *(uint8_t*)0x10000026 = 0;
                *(uint8_t*)0x10000027 = 0x44;
                *(uint8_t*)0x10000028 = 0xc;
                *(uint8_t*)0x10000029 = 5;
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 0, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 3, 4, 4);
                *(uint32_t*)0x1000002b = htobe32(9);
                *(uint32_t*)0x1000002f = htobe32(4);
                *(uint8_t*)0x10000033 = 0x83;
                *(uint8_t*)0x10000034 = 0xb;
                *(uint8_t*)0x10000035 = 6;
                *(uint32_t*)0x10000036 = htobe32(0xe0000001);
                *(uint32_t*)0x1000003a = htobe32(-1);
                *(uint8_t*)0x1000003e = 0;
                *(uint8_t*)0x1000003f = 4;
                memcpy((void*)0x10000040, "\xa4\xd4", 2);
                *(uint8_t*)0x10000042 = 0x89;
                *(uint8_t*)0x10000043 = 0x13;
                *(uint8_t*)0x10000044 = 4;
                *(uint8_t*)0x10000045 = 0xac;
                *(uint8_t*)0x10000046 = 0x14;
                *(uint8_t*)0x10000047 = 0;
                *(uint8_t*)0x10000048 = 0xbb;
                *(uint32_t*)0x10000049 = htobe32(-1);
                *(uint8_t*)0x1000004d = 0xac;
                *(uint8_t*)0x1000004e = 0x14;
                *(uint8_t*)0x1000004f = 0;
                *(uint8_t*)0x10000050 = 0xbb;
                *(uint32_t*)0x10000051 = htobe32(0);
                *(uint8_t*)0x10000055 = 0x94;
                *(uint8_t*)0x10000056 = 6;
                *(uint32_t*)0x10000057 = htobe32(9);
                *(uint8_t*)0x1000005b = 0x94;
                *(uint8_t*)0x1000005c = 6;
                *(uint32_t*)0x1000005d = htobe32(0x80000001);
                *(uint8_t*)0x10000061 = 1;
                *(uint8_t*)0x10000062 = 0x83;
                *(uint8_t*)0x10000063 = 0x1f;
                *(uint8_t*)0x10000064 = 2;
                *(uint32_t*)0x10000065 = htobe32(0xe0000002);
                *(uint32_t*)0x10000069 = htobe32(0xe0000001);
                *(uint32_t*)0x1000006d = htobe32(0x7f000001);
                *(uint32_t*)0x10000071 = htobe32(0);
                *(uint32_t*)0x10000075 = htobe32(0x7f000001);
                *(uint32_t*)0x10000079 = htobe32(0x7f000001);
                *(uint32_t*)0x1000007d = htobe32(0xe0000001);
                memcpy((void*)0x10000082, "\x8d\x86\x2d\x09\x9b\x6b\xb2\xba\x6a\xea\xa6\xab\xd3\xe9\xd5\x82\xc9", 17);
                		struct csum_inet csum_1;
                		csum_inet_init(&csum_1);
                csum_inet_update(&csum_1, (const uint8_t*)0x10000012, 112);
                *(uint16_t*)0x1000001c = csum_inet_digest(&csum_1);
                		break;
                	case 11:
                memcpy((void*)0x100000c0, "\xc4\xe1\xf5\xf3\x7b\x05\xc4\xc2\xf5\x47\x52\x5a\x80\x8f\x4e\x00\x00\x00\x00\x66\x0f\x38\x1d\xbc\x60\x07\x00\x00\x00\xc4\xe2\xad\x91\x74\xae\x7e\x81\xfe\x00\x00\x00\x00\x8f\xe9\xa0\x99\xd8\xe4\xff\xc4\xc1\x93\x5c\x17\xc4\xc3\xe1\x41\xae\x2f\x10\x9d\xc2\xd8", 64);
                syz_execute_func(0x100000c0);
                		break;
                	case 12:
                		break;
                	}
                
                }
                int main(void)
                {
                		syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
                			use_temporary_dir();
                			do_sandbox_none();
                	return 0;
                }
                
                <stdin>:360:17: error: use of undeclared identifier 'SYS_shm_open2'
                                res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                                              ^
                1 error generated.
                
                compiler invocation: clang [-o /tmp/syz-executor922590397 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow]
        --- FAIL: TestGenerate/freebsd/386/10 (1.74s)
            csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:false HandleSegv:false Repro:false Trace:false}
                program:
                setsockopt$inet_opts(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000000)="ec04a904b9d2ea02fab2df1d9de39f3f5aa2344397e186204d39d74da156e7c6cd98195b7b83c652b06b6222bdef3363961bf47e9b530fbf65bae3607b60941e2715bd678fcebc5524bcefd3184d", 0x4e)
                ioctl$DIOCSETIFFLAG(0xffffffffffffffff, 0xc0284459, &(0x7f0000000180)={0x10, &(0x7f0000000080)="de11c2a774191d70f51e7c3e375c2814ac72c2d5d0404a2e3d5baf92161f3b451efe9c4c79d7660668f6073e2f76c5f2145195e8c1a4ec34b6f69c1b582768207b28a979f05adc14a3357fe7c493fc81a9177524631bb209be637f8695747fa7cf1c68ac691f169c1b8fb67d7a3776ddfc620ffbe6831f74d2f2d089a4ffecf510a99702258c58ea9e871d4f4ab9a347aabdbb03585b37b5c79436c0c1160a5876b61bbf0c814bb49a27a36082df13cb2f9de2f942b6ac7e158880cfc03cfdccca9fc0f2347eb543a343b4c92707fe736a86a35d58e26f6fd2e9ec8f82", 0x7, 0x5a764000, 0x6})
                recvfrom$inet6(0xffffffffffffff9c, &(0x7f00000001c0)=""/23, 0x17, 0x2, &(0x7f0000000200)={0x1c, 0x1c, 0x3, 0x6, @loopback, 0x2d99}, 0x1c)
                r0 = shm_open2(&(0x7f0000000240)='./file0\x00', 0x800, 0x0, 0x7, &(0x7f0000000280)='\x00')
                sendfile(r0, 0xffffffffffffff9c, 0x8, 0x800, &(0x7f00000015c0)={&(0x7f0000000540)=[{&(0x7f00000002c0)="efacade58ab0192351a102ada32ad1f41e429edf6c4a513ac6d669cadb222eb68297ab8f9f7b3234d0c6cfa280ad14dc1c4c34175119446d79a030d48b57304eb90b428c202382d86cd71e9c1ecc8d3e2d764aae3714cb591eb027e46943e23eb7656875867e603cf13892a74c42bb1844c27f7f454f9661f1dbb35004ada4d6d75b1df342e967493d207d6b8b4edcbf9d1e378445573684ed139b671abf6576edf8d7342cd8649d376970acbde224a7b0b6a975a8ba0a768ed6abe16c1b694f65dd4231f48c2884", 0xc8}, {&(0x7f00000003c0)="a6e4fe186c760ac2ebbcf9efda5e22e2df6f153fccda1c16976037d03ee004c3fbba5d35b6c083130fc705f95889ba6adbe5e3a7a5e70136a0ca085b7e504d0df55fe184a9bd7a82", 0x48}, {&(0x7f0000000440)="c7e00030b3c4541743ee6513", 0xc}, {&(0x7f0000000480)="a4a67a4e72492b9fab6379e4c0f35b22b69b6e7aefc56beefa857ae28543", 0x1e}, {&(0x7f00000004c0)="8f095f8df1c6bc4dfc1d826f02dfa7794bebf9e7ffc7160f276a53d1abc996fca8c8dbc7c79c09cd5f954775c9e8fc1cf2e0e3c054fb54b662d1b45f5235fdbf860c3fed3dc34ceb30c44baa4ded7de7e9533f4dca146db0db35a93ba654d49011d9cb98d1576b731b9c2bb58c0df4edee6ef5ae1f8b6bc9646f5b4ade4dd52a", 0x80}], 0x5, &(0x7f0000001580)=[{&(0x7f0000000580)="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", 0x1000}], 0x1}, &(0x7f0000001600), 0x9)
                ioctl$DIOCXROLLBACK(0xffffffffffffffff, 0xc0104453, &(0x7f0000001640)="6c811ba52c139b40dc5680cb0275fdd440468e4dae07c745ba758cb266742f468fc42da0669f6061cb2c9f921e953451b3135e0174fe8eb1aebb2c3eb8a7fb3fc8dea18e652d01e7184ca65dce04f4679afed2766b067349de7a5ef60b586992919a20382c0a1f20af0c9c7fac61cf18383e36fe56502f5f26b8")
                freebsd10_pipe(&(0x7f00000016c0)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
                setsockopt$inet6_sctp_SCTP_BINDX_REM_ADDR(r2, 0x84, 0x8002, &(0x7f0000001700)=@in={0x10, 0x2, 0x3, @rand_addr=0x7}, &(0x7f0000001740)=0x10)
                getsockopt$inet6_sctp_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000001780), &(0x7f00000017c0)=0x4)
                getsockopt$inet6_sctp_SCTP_HMAC_IDENT(r1, 0x84, 0x14, &(0x7f0000001800)={0x8, [0x1000, 0x0, 0x8000, 0x200, 0x4000, 0x0, 0x1, 0x0]}, &(0x7f0000001840)=0x14)
                syz_emit_ethernet(0x93, &(0x7f0000000000)={@random="c90c8a7c337f", @local, [{}], {@ipv4={0x800, {{0x1c, 0x4, 0x0, 0x0, 0x81, 0x65, 0x5, 0x1, 0x46, 0x0, @broadcast, @remote={0xac, 0x14, 0x0}, {[@end, @timestamp={0x44, 0xc, 0x5, 0x0, 0x3, [{[], 0x9}, {[], 0x4}]}, @lsrr={0x83, 0xb, 0x6, [@multicast1, @broadcast]}, @generic={0x0, 0x4, "a4d4"}, @ssrr={0x89, 0x13, 0x4, [@remote={0xac, 0x14, 0x0}, @broadcast, @remote={0xac, 0x14, 0x0}, @empty]}, @ra={0x94, 0x6, 0x9}, @ra={0x94, 0x6, 0x80000001}, @noop, @lsrr={0x83, 0x1f, 0x2, [@multicast2, @multicast1, @loopback, @empty, @loopback, @loopback, @multicast1]}]}}, @generic="8d862d099b6bb2ba6aeaa6abd3e9d582c9"}}}})
                syz_execute_func(&(0x7f00000000c0)="c4e1f5f37b05c4c2f547525a808f4e00000000660f381dbc6007000000c4e2ad9174ae7e81fe000000008fe9a099d8e4ffc4c1935c17c4c3e141ae2f109dc2d8")
                syz_extract_tcp_res(&(0x7f0000000100), 0x5, 0x7ff)
                
            csource_test.go:124: failed to build program:
                // autogenerated by syzkaller (https://github.com/google/syzkaller)
                
                #define _GNU_SOURCE 
                
                #include <sys/types.h>
                
                #include <errno.h>
                #include <pthread.h>
                #include <pwd.h>
                #include <signal.h>
                #include <stdarg.h>
                #include <stdbool.h>
                #include <stdint.h>
                #include <stdio.h>
                #include <stdlib.h>
                #include <string.h>
                #include <sys/endian.h>
                #include <sys/resource.h>
                #include <sys/syscall.h>
                #include <sys/wait.h>
                #include <time.h>
                #include <unistd.h>
                
                static void kill_and_wait(int pid, int* status)
                {
                	kill(pid, SIGKILL);
                	while (waitpid(-1, status, 0) != pid) {
                	}
                }
                
                static void sleep_ms(uint64_t ms)
                {
                	usleep(ms * 1000);
                }
                
                static uint64_t current_time_ms(void)
                {
                	struct timespec ts;
                	if (clock_gettime(CLOCK_MONOTONIC, &ts))
                	exit(1);
                	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
                }
                
                static void thread_start(void* (*fn)(void*), void* arg)
                {
                	pthread_t th;
                	pthread_attr_t attr;
                	pthread_attr_init(&attr);
                	pthread_attr_setstacksize(&attr, 128 << 10);
                	int i = 0;
                	for (; i < 100; i++) {
                		if (pthread_create(&th, &attr, fn, arg) == 0) {
                			pthread_attr_destroy(&attr);
                			return;
                		}
                		if (errno == EAGAIN) {
                			usleep(50);
                			continue;
                		}
                		break;
                	}
                	exit(1);
                }
                
                typedef struct {
                	pthread_mutex_t mu;
                	pthread_cond_t cv;
                	int state;
                } event_t;
                
                static void event_init(event_t* ev)
                {
                	if (pthread_mutex_init(&ev->mu, 0))
                	exit(1);
                	if (pthread_cond_init(&ev->cv, 0))
                	exit(1);
                	ev->state = 0;
                }
                
                static void event_reset(event_t* ev)
                {
                	ev->state = 0;
                }
                
                static void event_set(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	if (ev->state)
                	exit(1);
                	ev->state = 1;
                	pthread_mutex_unlock(&ev->mu);
                	pthread_cond_broadcast(&ev->cv);
                }
                
                static void event_wait(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	while (!ev->state)
                		pthread_cond_wait(&ev->cv, &ev->mu);
                	pthread_mutex_unlock(&ev->mu);
                }
                
                static int event_isset(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                static int event_timedwait(event_t* ev, uint64_t timeout)
                {
                	uint64_t start = current_time_ms();
                	uint64_t now = start;
                	pthread_mutex_lock(&ev->mu);
                	for (;;) {
                		if (ev->state)
                			break;
                		uint64_t remain = timeout - (now - start);
                		struct timespec ts;
                		ts.tv_sec = remain / 1000;
                		ts.tv_nsec = (remain % 1000) * 1000 * 1000;
                		pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
                		now = current_time_ms();
                		if (now - start > timeout)
                			break;
                	}
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
                #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
                
                struct csum_inet {
                	uint32_t acc;
                };
                
                static void csum_inet_init(struct csum_inet* csum)
                {
                	csum->acc = 0;
                }
                
                static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
                {
                	if (length == 0)
                		return;
                	size_t i = 0;
                	for (; i < length - 1; i += 2)
                		csum->acc += *(uint16_t*)&data[i];
                	if (length & 1)
                		csum->acc += le16toh((uint16_t)data[length - 1]);
                	while (csum->acc > 0xffff)
                		csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
                }
                
                static uint16_t csum_inet_digest(struct csum_inet* csum)
                {
                	return ~csum->acc;
                }
                
                static void sandbox_common()
                {
                	if (setsid() == -1)
                	exit(1);
                	struct rlimit rlim;
                	rlim.rlim_cur = rlim.rlim_max = 128 << 20;
                	setrlimit(RLIMIT_AS, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 8 << 20;
                	setrlimit(RLIMIT_MEMLOCK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_FSIZE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_STACK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 0;
                	setrlimit(RLIMIT_CORE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 256;
                	setrlimit(RLIMIT_NOFILE, &rlim);
                }
                
                static void loop();
                
                static int do_sandbox_none(void)
                {
                	sandbox_common();
                	loop();
                	return 0;
                }
                
                static long syz_execute_func(volatile long text)
                {
                	((void (*)(void))(text))();
                	return 0;
                }
                
                struct thread_t {
                	int created, call;
                	event_t ready, done;
                };
                
                static struct thread_t threads[16];
                static void execute_call(int call);
                static int running;
                
                static void* thr(void* arg)
                {
                	struct thread_t* th = (struct thread_t*)arg;
                	for (;;) {
                		event_wait(&th->ready);
                		event_reset(&th->ready);
                		execute_call(th->call);
                		__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
                		event_set(&th->done);
                	}
                	return 0;
                }
                
                static void execute_one(void)
                {
                	int i, call, thread;
                	for (call = 0; call < 13; call++) {
                		for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
                			struct thread_t* th = &threads[thread];
                			if (!th->created) {
                				th->created = 1;
                				event_init(&th->ready);
                				event_init(&th->done);
                				event_set(&th->done);
                				thread_start(thr, th);
                			}
                			if (!event_isset(&th->done))
                				continue;
                			event_reset(&th->done);
                			th->call = call;
                			__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
                			event_set(&th->ready);
                			event_timedwait(&th->done, 45);
                			break;
                		}
                	}
                	for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
                		sleep_ms(1);
                }
                
                static void execute_one(void);
                
                #define WAIT_FLAGS 0
                
                static void loop(void)
                {
                	int iter = 0;
                	for (;; iter++) {
                		int pid = fork();
                		if (pid < 0)
                	exit(1);
                		if (pid == 0) {
                			execute_one();
                			exit(0);
                		}
                		int status = 0;
                		uint64_t start = current_time_ms();
                		for (;;) {
                			if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
                				break;
                			sleep_ms(1);
                			if (current_time_ms() - start < 5 * 1000)
                				continue;
                			kill_and_wait(pid, &status);
                			break;
                		}
                	}
                }
                
                uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
                
                void execute_call(int call)
                {
                		intptr_t res = 0;
                	switch (call) {
                	case 0:
                memcpy((void*)0x10000000, "\xec\x04\xa9\x04\xb9\xd2\xea\x02\xfa\xb2\xdf\x1d\x9d\xe3\x9f\x3f\x5a\xa2\x34\x43\x97\xe1\x86\x20\x4d\x39\xd7\x4d\xa1\x56\xe7\xc6\xcd\x98\x19\x5b\x7b\x83\xc6\x52\xb0\x6b\x62\x22\xbd\xef\x33\x63\x96\x1b\xf4\x7e\x9b\x53\x0f\xbf\x65\xba\xe3\x60\x7b\x60\x94\x1e\x27\x15\xbd\x67\x8f\xce\xbc\x55\x24\xbc\xef\xd3\x18\x4d", 78);
                		syscall(SYS_setsockopt, 0xffffff9c, 0, 0, 0x10000000, 0x4e);
                		break;
                	case 1:
                *(uint8_t*)0x10000180 = 0x10;
                *(uint32_t*)0x10000184 = 0x10000080;
                memcpy((void*)0x10000080, "\xde\x11\xc2\xa7\x74\x19\x1d\x70\xf5\x1e\x7c\x3e\x37\x5c\x28\x14\xac\x72\xc2\xd5\xd0\x40\x4a\x2e\x3d\x5b\xaf\x92\x16\x1f\x3b\x45\x1e\xfe\x9c\x4c\x79\xd7\x66\x06\x68\xf6\x07\x3e\x2f\x76\xc5\xf2\x14\x51\x95\xe8\xc1\xa4\xec\x34\xb6\xf6\x9c\x1b\x58\x27\x68\x20\x7b\x28\xa9\x79\xf0\x5a\xdc\x14\xa3\x35\x7f\xe7\xc4\x93\xfc\x81\xa9\x17\x75\x24\x63\x1b\xb2\x09\xbe\x63\x7f\x86\x95\x74\x7f\xa7\xcf\x1c\x68\xac\x69\x1f\x16\x9c\x1b\x8f\xb6\x7d\x7a\x37\x76\xdd\xfc\x62\x0f\xfb\xe6\x83\x1f\x74\xd2\xf2\xd0\x89\xa4\xff\xec\xf5\x10\xa9\x97\x02\x25\x8c\x58\xea\x9e\x87\x1d\x4f\x4a\xb9\xa3\x47\xaa\xbd\xbb\x03\x58\x5b\x37\xb5\xc7\x94\x36\xc0\xc1\x16\x0a\x58\x76\xb6\x1b\xbf\x0c\x81\x4b\xb4\x9a\x27\xa3\x60\x82\xdf\x13\xcb\x2f\x9d\xe2\xf9\x42\xb6\xac\x7e\x15\x88\x80\xcf\xc0\x3c\xfd\xcc\xca\x9f\xc0\xf2\x34\x7e\xb5\x43\xa3\x43\xb4\xc9\x27\x07\xfe\x73\x6a\x86\xa3\x5d\x58\xe2\x6f\x6f\xd2\xe9\xec\x8f\x82", 221);
                *(uint32_t*)0x10000188 = 7;
                *(uint32_t*)0x1000018c = 0x5a764000;
                *(uint32_t*)0x10000190 = 6;
                		syscall(SYS_ioctl, -1, 0xc0284459, 0x10000180);
                		break;
                	case 2:
                *(uint8_t*)0x10000200 = 0x1c;
                *(uint8_t*)0x10000201 = 0x1c;
                *(uint16_t*)0x10000202 = htobe16(0x4e23);
                *(uint32_t*)0x10000204 = 6;
                *(uint64_t*)0x10000208 = htobe64(0);
                *(uint64_t*)0x10000210 = htobe64(1);
                *(uint32_t*)0x10000218 = 0x2d99;
                		syscall(SYS_recvfrom, 0xffffff9c, 0x100001c0, 0x17, 2, 0x10000200, 0x1c);
                		break;
                	case 3:
                memcpy((void*)0x10000240, "./file0\000", 8);
                memcpy((void*)0x10000280, "\000", 1);
                		res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                		if (res != -1)
                				r[0] = res;
                		break;
                	case 4:
                *(uint32_t*)0x100015c0 = 0x10000540;
                *(uint32_t*)0x10000540 = 0x100002c0;
                memcpy((void*)0x100002c0, "\xef\xac\xad\xe5\x8a\xb0\x19\x23\x51\xa1\x02\xad\xa3\x2a\xd1\xf4\x1e\x42\x9e\xdf\x6c\x4a\x51\x3a\xc6\xd6\x69\xca\xdb\x22\x2e\xb6\x82\x97\xab\x8f\x9f\x7b\x32\x34\xd0\xc6\xcf\xa2\x80\xad\x14\xdc\x1c\x4c\x34\x17\x51\x19\x44\x6d\x79\xa0\x30\xd4\x8b\x57\x30\x4e\xb9\x0b\x42\x8c\x20\x23\x82\xd8\x6c\xd7\x1e\x9c\x1e\xcc\x8d\x3e\x2d\x76\x4a\xae\x37\x14\xcb\x59\x1e\xb0\x27\xe4\x69\x43\xe2\x3e\xb7\x65\x68\x75\x86\x7e\x60\x3c\xf1\x38\x92\xa7\x4c\x42\xbb\x18\x44\xc2\x7f\x7f\x45\x4f\x96\x61\xf1\xdb\xb3\x50\x04\xad\xa4\xd6\xd7\x5b\x1d\xf3\x42\xe9\x67\x49\x3d\x20\x7d\x6b\x8b\x4e\xdc\xbf\x9d\x1e\x37\x84\x45\x57\x36\x84\xed\x13\x9b\x67\x1a\xbf\x65\x76\xed\xf8\xd7\x34\x2c\xd8\x64\x9d\x37\x69\x70\xac\xbd\xe2\x24\xa7\xb0\xb6\xa9\x75\xa8\xba\x0a\x76\x8e\xd6\xab\xe1\x6c\x1b\x69\x4f\x65\xdd\x42\x31\xf4\x8c\x28\x84", 200);
                *(uint32_t*)0x10000544 = 0xc8;
                *(uint32_t*)0x10000548 = 0x100003c0;
                memcpy((void*)0x100003c0, "\xa6\xe4\xfe\x18\x6c\x76\x0a\xc2\xeb\xbc\xf9\xef\xda\x5e\x22\xe2\xdf\x6f\x15\x3f\xcc\xda\x1c\x16\x97\x60\x37\xd0\x3e\xe0\x04\xc3\xfb\xba\x5d\x35\xb6\xc0\x83\x13\x0f\xc7\x05\xf9\x58\x89\xba\x6a\xdb\xe5\xe3\xa7\xa5\xe7\x01\x36\xa0\xca\x08\x5b\x7e\x50\x4d\x0d\xf5\x5f\xe1\x84\xa9\xbd\x7a\x82", 72);
                *(uint32_t*)0x1000054c = 0x48;
                *(uint32_t*)0x10000550 = 0x10000440;
                memcpy((void*)0x10000440, "\xc7\xe0\x00\x30\xb3\xc4\x54\x17\x43\xee\x65\x13", 12);
                *(uint32_t*)0x10000554 = 0xc;
                *(uint32_t*)0x10000558 = 0x10000480;
                memcpy((void*)0x10000480, "\xa4\xa6\x7a\x4e\x72\x49\x2b\x9f\xab\x63\x79\xe4\xc0\xf3\x5b\x22\xb6\x9b\x6e\x7a\xef\xc5\x6b\xee\xfa\x85\x7a\xe2\x85\x43", 30);
                *(uint32_t*)0x1000055c = 0x1e;
                *(uint32_t*)0x10000560 = 0x100004c0;
                memcpy((void*)0x100004c0, "\x8f\x09\x5f\x8d\xf1\xc6\xbc\x4d\xfc\x1d\x82\x6f\x02\xdf\xa7\x79\x4b\xeb\xf9\xe7\xff\xc7\x16\x0f\x27\x6a\x53\xd1\xab\xc9\x96\xfc\xa8\xc8\xdb\xc7\xc7\x9c\x09\xcd\x5f\x95\x47\x75\xc9\xe8\xfc\x1c\xf2\xe0\xe3\xc0\x54\xfb\x54\xb6\x62\xd1\xb4\x5f\x52\x35\xfd\xbf\x86\x0c\x3f\xed\x3d\xc3\x4c\xeb\x30\xc4\x4b\xaa\x4d\xed\x7d\xe7\xe9\x53\x3f\x4d\xca\x14\x6d\xb0\xdb\x35\xa9\x3b\xa6\x54\xd4\x90\x11\xd9\xcb\x98\xd1\x57\x6b\x73\x1b\x9c\x2b\xb5\x8c\x0d\xf4\xed\xee\x6e\xf5\xae\x1f\x8b\x6b\xc9\x64\x6f\x5b\x4a\xde\x4d\xd5\x2a", 128);
                *(uint32_t*)0x10000564 = 0x80;
                *(uint32_t*)0x100015c4 = 5;
                *(uint32_t*)0x100015c8 = 0x10001580;
                *(uint32_t*)0x10001580 = 0x10000580;
                memcpy((void*)0x10000580, 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d\x78\x21\x78\x31\x91\xe0\x3b\x56\x82\xae\x7c\x0d\xad\xd4\xa9\x27\x24\xaa\xfc\xe0\x24\xae\x0a\xcc\x8e\x39\xcd\x3e\xaf\x4e\xde\x02\x49\x07\xe5\x09\x77\x22\x8d\xf4\xd3\xa6\xa4\x28\x88\x6f\xb2\x4f\x9a\xa1\x53\x66\xbc\xae\x6e\xbb\x17\x51\x40\x2b\x9f\x34\xa3\x85\x40\xc0\x92\x93\x04\x7f\xe9\x43\x73\xc1\x7a\x9c\xcc\xff\x1a\x1d\xe3\x22\xef\xc3\xfe\x33\x48\x01\xaa\x76\x44\x4d\xd0\xd4\xc0\x17\xfe\xb9\xd4\x53\xeb\x35\xf2\x1e\xfe\x33\x2e\xd9\xae\x75\x57\x1c\xa5\x77\x8e\xb4\xb6\x9d\x94\xf7\x69\xdb\xf0\x8c\xaf\xa0\x7a\x7f\x42\xf1\x2f\x8f\x2a\x9e\x3e\xb6\x97\x6e\x01\x62\xc3\xf2\x34\x51\xd9\x74\xc8\x7f\x60\x63\xbd\x31\xdb\x13\x85\x81\x1b\x55\x4c\x85\x50\xba\x51\x30\xf8\x8d\x79\x7a\x8b\xab\x3e\x01\xb2\x1e\x5f\xeb\xd2\xb0\xf6\x6e\x8f\x58\x42\xc1\x04\x10\x74\x28\x42\x3a\x8c\x8d\x39\x4c\x5e\x19\xea\x71\x75\x87\xa9\x2f\xe0\x70\xe5\xb4\x9e\xc4\xaf\x4b\xc6\x32\xe2\xf3\xe8\x0f\xa6\x51\x16\xf3\x8e\x12\xd8\xa2\x18\xf4\xf2\x36\x10\x5e\x39\x08\x02\xb3\xf9\x92\x16\x50\xba\x41\x81\x77\xf8\x33\x26\x18\x61\xab\xee\xbf\xae\xc3\x19\x89\x49\x2f\x7f\x02\xd1\xb0\x62\x16\x9d\x3b\xee\x9a\xa3\x99\xd3\xdf\xa9\xf9\x8d\x48\x29\xe9\x8f\xe7\x67\x23\x6f\x5d\xd9\x81\x09\x43\x9d\x31\x99\x9c\x03\x51\x9e\xa3\x8d\xe2\x5b\x3f\xe3\x8b\x42\x0f\xbe\x45\x52\xe9\xad\xed\xb3\x07\xfd\xff\xc9\x8e\xa4\x58\x6d\x60\xee\x31\x33\x28\xc5\xb6\xc3\xff\x50\x4e\xbe\xd2\x8f\x56\x69\x80\x16\xdd\x79\x6b\x9b\x9e\x85\x0d\x79\x18\xd8\xb8", 4096);
                *(uint32_t*)0x10001584 = 0x1000;
                *(uint32_t*)0x100015cc = 1;
                		syscall(SYS_sendfile, (intptr_t)r[0], 0xffffff9c, 8, 0x800ull, 0x100015c0, 0x10001600, 9);
                		break;
                	case 5:
                memcpy((void*)0x10001640, "\x6c\x81\x1b\xa5\x2c\x13\x9b\x40\xdc\x56\x80\xcb\x02\x75\xfd\xd4\x40\x46\x8e\x4d\xae\x07\xc7\x45\xba\x75\x8c\xb2\x66\x74\x2f\x46\x8f\xc4\x2d\xa0\x66\x9f\x60\x61\xcb\x2c\x9f\x92\x1e\x95\x34\x51\xb3\x13\x5e\x01\x74\xfe\x8e\xb1\xae\xbb\x2c\x3e\xb8\xa7\xfb\x3f\xc8\xde\xa1\x8e\x65\x2d\x01\xe7\x18\x4c\xa6\x5d\xce\x04\xf4\x67\x9a\xfe\xd2\x76\x6b\x06\x73\x49\xde\x7a\x5e\xf6\x0b\x58\x69\x92\x91\x9a\x20\x38\x2c\x0a\x1f\x20\xaf\x0c\x9c\x7f\xac\x61\xcf\x18\x38\x3e\x36\xfe\x56\x50\x2f\x5f\x26\xb8", 122);
                		syscall(SYS_ioctl, -1, 0xc0104453, 0x10001640);
                		break;
                	case 6:
                		res = syscall(SYS_freebsd10_pipe, 0x100016c0);
                		if (res != -1) {
                r[1] = *(uint32_t*)0x100016c0;
                r[2] = *(uint32_t*)0x100016c4;
                		}
                		break;
                	case 7:
                *(uint8_t*)0x10001700 = 0x10;
                *(uint8_t*)0x10001701 = 2;
                *(uint16_t*)0x10001702 = htobe16(0x4e23);
                *(uint32_t*)0x10001704 = htobe32(7);
                *(uint8_t*)0x10001708 = 0;
                *(uint8_t*)0x10001709 = 0;
                *(uint8_t*)0x1000170a = 0;
                *(uint8_t*)0x1000170b = 0;
                *(uint8_t*)0x1000170c = 0;
                *(uint8_t*)0x1000170d = 0;
                *(uint8_t*)0x1000170e = 0;
                *(uint8_t*)0x1000170f = 0;
                *(uint32_t*)0x10001740 = 0x10;
                		syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x8002, 0x10001700, 0x10001740);
                		break;
                	case 8:
                *(uint32_t*)0x100017c0 = 4;
                		syscall(SYS_getsockopt, -1, 0x84, 0x20, 0x10001780, 0x100017c0);
                		break;
                	case 9:
                *(uint32_t*)0x10001800 = 8;
                *(uint16_t*)0x10001804 = 0x1000;
                *(uint16_t*)0x10001806 = 0;
                *(uint16_t*)0x10001808 = 0x8000;
                *(uint16_t*)0x1000180a = 0x200;
                *(uint16_t*)0x1000180c = 0x4000;
                *(uint16_t*)0x1000180e = 0;
                *(uint16_t*)0x10001810 = 1;
                *(uint16_t*)0x10001812 = 0;
                *(uint32_t*)0x10001840 = 0x14;
                		syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x14, 0x10001800, 0x10001840);
                		break;
                	case 10:
                memcpy((void*)0x10000000, "\xc9\x0c\x8a\x7c\x33\x7f", 6);
                *(uint8_t*)0x10000006 = 0xaa;
                *(uint8_t*)0x10000007 = 0xaa;
                *(uint8_t*)0x10000008 = 0xaa;
                *(uint8_t*)0x10000009 = 0xaa;
                *(uint8_t*)0x1000000a = 0xaa;
                *(uint8_t*)0x1000000b = 0xaa;
                *(uint16_t*)0x1000000c = htobe16(0x8100);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 0, 3);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 3, 1);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 4, 12);
                *(uint16_t*)0x10000010 = htobe16(0x800);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 0x1c, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 4, 4, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 0, 2);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 2, 6);
                *(uint16_t*)0x10000014 = htobe16(0x81);
                *(uint16_t*)0x10000016 = htobe16(0x65);
                *(uint16_t*)0x10000018 = htobe16(5);
                *(uint8_t*)0x1000001a = 1;
                *(uint8_t*)0x1000001b = 0x46;
                *(uint16_t*)0x1000001c = htobe16(0);
                *(uint32_t*)0x1000001e = htobe32(-1);
                *(uint8_t*)0x10000022 = 0xac;
                *(uint8_t*)0x10000023 = 0x14;
                *(uint8_t*)0x10000024 = 0;
                *(uint8_t*)0x10000025 = 0xbb;
                *(uint8_t*)0x10000026 = 0;
                *(uint8_t*)0x10000027 = 0x44;
                *(uint8_t*)0x10000028 = 0xc;
                *(uint8_t*)0x10000029 = 5;
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 0, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 3, 4, 4);
                *(uint32_t*)0x1000002b = htobe32(9);
                *(uint32_t*)0x1000002f = htobe32(4);
                *(uint8_t*)0x10000033 = 0x83;
                *(uint8_t*)0x10000034 = 0xb;
                *(uint8_t*)0x10000035 = 6;
                *(uint32_t*)0x10000036 = htobe32(0xe0000001);
                *(uint32_t*)0x1000003a = htobe32(-1);
                *(uint8_t*)0x1000003e = 0;
                *(uint8_t*)0x1000003f = 4;
                memcpy((void*)0x10000040, "\xa4\xd4", 2);
                *(uint8_t*)0x10000042 = 0x89;
                *(uint8_t*)0x10000043 = 0x13;
                *(uint8_t*)0x10000044 = 4;
                *(uint8_t*)0x10000045 = 0xac;
                *(uint8_t*)0x10000046 = 0x14;
                *(uint8_t*)0x10000047 = 0;
                *(uint8_t*)0x10000048 = 0xbb;
                *(uint32_t*)0x10000049 = htobe32(-1);
                *(uint8_t*)0x1000004d = 0xac;
                *(uint8_t*)0x1000004e = 0x14;
                *(uint8_t*)0x1000004f = 0;
                *(uint8_t*)0x10000050 = 0xbb;
                *(uint32_t*)0x10000051 = htobe32(0);
                *(uint8_t*)0x10000055 = 0x94;
                *(uint8_t*)0x10000056 = 6;
                *(uint32_t*)0x10000057 = htobe32(9);
                *(uint8_t*)0x1000005b = 0x94;
                *(uint8_t*)0x1000005c = 6;
                *(uint32_t*)0x1000005d = htobe32(0x80000001);
                *(uint8_t*)0x10000061 = 1;
                *(uint8_t*)0x10000062 = 0x83;
                *(uint8_t*)0x10000063 = 0x1f;
                *(uint8_t*)0x10000064 = 2;
                *(uint32_t*)0x10000065 = htobe32(0xe0000002);
                *(uint32_t*)0x10000069 = htobe32(0xe0000001);
                *(uint32_t*)0x1000006d = htobe32(0x7f000001);
                *(uint32_t*)0x10000071 = htobe32(0);
                *(uint32_t*)0x10000075 = htobe32(0x7f000001);
                *(uint32_t*)0x10000079 = htobe32(0x7f000001);
                *(uint32_t*)0x1000007d = htobe32(0xe0000001);
                memcpy((void*)0x10000082, "\x8d\x86\x2d\x09\x9b\x6b\xb2\xba\x6a\xea\xa6\xab\xd3\xe9\xd5\x82\xc9", 17);
                		struct csum_inet csum_1;
                		csum_inet_init(&csum_1);
                csum_inet_update(&csum_1, (const uint8_t*)0x10000012, 112);
                *(uint16_t*)0x1000001c = csum_inet_digest(&csum_1);
                		break;
                	case 11:
                memcpy((void*)0x100000c0, "\xc4\xe1\xf5\xf3\x7b\x05\xc4\xc2\xf5\x47\x52\x5a\x80\x8f\x4e\x00\x00\x00\x00\x66\x0f\x38\x1d\xbc\x60\x07\x00\x00\x00\xc4\xe2\xad\x91\x74\xae\x7e\x81\xfe\x00\x00\x00\x00\x8f\xe9\xa0\x99\xd8\xe4\xff\xc4\xc1\x93\x5c\x17\xc4\xc3\xe1\x41\xae\x2f\x10\x9d\xc2\xd8", 64);
                syz_execute_func(0x100000c0);
                		break;
                	case 12:
                		break;
                	}
                
                }
                int main(void)
                {
                		syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
                			do_sandbox_none();
                	return 0;
                }
                
                <stdin>:307:17: error: use of undeclared identifier 'SYS_shm_open2'
                                res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                                              ^
                1 error generated.
                
                compiler invocation: clang [-o /tmp/syz-executor647851256 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow]
        --- FAIL: TestGenerate/freebsd/386/8 (2.23s)
            csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:setuid Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false}
                program:
                setsockopt$inet_opts(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000000)="ec04a904b9d2ea02fab2df1d9de39f3f5aa2344397e186204d39d74da156e7c6cd98195b7b83c652b06b6222bdef3363961bf47e9b530fbf65bae3607b60941e2715bd678fcebc5524bcefd3184d", 0x4e)
                ioctl$DIOCSETIFFLAG(0xffffffffffffffff, 0xc0284459, &(0x7f0000000180)={0x10, &(0x7f0000000080)="de11c2a774191d70f51e7c3e375c2814ac72c2d5d0404a2e3d5baf92161f3b451efe9c4c79d7660668f6073e2f76c5f2145195e8c1a4ec34b6f69c1b582768207b28a979f05adc14a3357fe7c493fc81a9177524631bb209be637f8695747fa7cf1c68ac691f169c1b8fb67d7a3776ddfc620ffbe6831f74d2f2d089a4ffecf510a99702258c58ea9e871d4f4ab9a347aabdbb03585b37b5c79436c0c1160a5876b61bbf0c814bb49a27a36082df13cb2f9de2f942b6ac7e158880cfc03cfdccca9fc0f2347eb543a343b4c92707fe736a86a35d58e26f6fd2e9ec8f82", 0x7, 0x5a764000, 0x6})
                recvfrom$inet6(0xffffffffffffff9c, &(0x7f00000001c0)=""/23, 0x17, 0x2, &(0x7f0000000200)={0x1c, 0x1c, 0x3, 0x6, @loopback, 0x2d99}, 0x1c)
                r0 = shm_open2(&(0x7f0000000240)='./file0\x00', 0x800, 0x0, 0x7, &(0x7f0000000280)='\x00')
                sendfile(r0, 0xffffffffffffff9c, 0x8, 0x800, &(0x7f00000015c0)={&(0x7f0000000540)=[{&(0x7f00000002c0)="efacade58ab0192351a102ada32ad1f41e429edf6c4a513ac6d669cadb222eb68297ab8f9f7b3234d0c6cfa280ad14dc1c4c34175119446d79a030d48b57304eb90b428c202382d86cd71e9c1ecc8d3e2d764aae3714cb591eb027e46943e23eb7656875867e603cf13892a74c42bb1844c27f7f454f9661f1dbb35004ada4d6d75b1df342e967493d207d6b8b4edcbf9d1e378445573684ed139b671abf6576edf8d7342cd8649d376970acbde224a7b0b6a975a8ba0a768ed6abe16c1b694f65dd4231f48c2884", 0xc8}, {&(0x7f00000003c0)="a6e4fe186c760ac2ebbcf9efda5e22e2df6f153fccda1c16976037d03ee004c3fbba5d35b6c083130fc705f95889ba6adbe5e3a7a5e70136a0ca085b7e504d0df55fe184a9bd7a82", 0x48}, {&(0x7f0000000440)="c7e00030b3c4541743ee6513", 0xc}, {&(0x7f0000000480)="a4a67a4e72492b9fab6379e4c0f35b22b69b6e7aefc56beefa857ae28543", 0x1e}, {&(0x7f00000004c0)="8f095f8df1c6bc4dfc1d826f02dfa7794bebf9e7ffc7160f276a53d1abc996fca8c8dbc7c79c09cd5f954775c9e8fc1cf2e0e3c054fb54b662d1b45f5235fdbf860c3fed3dc34ceb30c44baa4ded7de7e9533f4dca146db0db35a93ba654d49011d9cb98d1576b731b9c2bb58c0df4edee6ef5ae1f8b6bc9646f5b4ade4dd52a", 0x80}], 0x5, &(0x7f0000001580)=[{&(0x7f0000000580)="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", 0x1000}], 0x1}, &(0x7f0000001600), 0x9)
                ioctl$DIOCXROLLBACK(0xffffffffffffffff, 0xc0104453, &(0x7f0000001640)="6c811ba52c139b40dc5680cb0275fdd440468e4dae07c745ba758cb266742f468fc42da0669f6061cb2c9f921e953451b3135e0174fe8eb1aebb2c3eb8a7fb3fc8dea18e652d01e7184ca65dce04f4679afed2766b067349de7a5ef60b586992919a20382c0a1f20af0c9c7fac61cf18383e36fe56502f5f26b8")
                freebsd10_pipe(&(0x7f00000016c0)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
                setsockopt$inet6_sctp_SCTP_BINDX_REM_ADDR(r2, 0x84, 0x8002, &(0x7f0000001700)=@in={0x10, 0x2, 0x3, @rand_addr=0x7}, &(0x7f0000001740)=0x10)
                getsockopt$inet6_sctp_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000001780), &(0x7f00000017c0)=0x4)
                getsockopt$inet6_sctp_SCTP_HMAC_IDENT(r1, 0x84, 0x14, &(0x7f0000001800)={0x8, [0x1000, 0x0, 0x8000, 0x200, 0x4000, 0x0, 0x1, 0x0]}, &(0x7f0000001840)=0x14)
                syz_emit_ethernet(0x93, &(0x7f0000000000)={@random="c90c8a7c337f", @local, [{}], {@ipv4={0x800, {{0x1c, 0x4, 0x0, 0x0, 0x81, 0x65, 0x5, 0x1, 0x46, 0x0, @broadcast, @remote={0xac, 0x14, 0x0}, {[@end, @timestamp={0x44, 0xc, 0x5, 0x0, 0x3, [{[], 0x9}, {[], 0x4}]}, @lsrr={0x83, 0xb, 0x6, [@multicast1, @broadcast]}, @generic={0x0, 0x4, "a4d4"}, @ssrr={0x89, 0x13, 0x4, [@remote={0xac, 0x14, 0x0}, @broadcast, @remote={0xac, 0x14, 0x0}, @empty]}, @ra={0x94, 0x6, 0x9}, @ra={0x94, 0x6, 0x80000001}, @noop, @lsrr={0x83, 0x1f, 0x2, [@multicast2, @multicast1, @loopback, @empty, @loopback, @loopback, @multicast1]}]}}, @generic="8d862d099b6bb2ba6aeaa6abd3e9d582c9"}}}})
                syz_execute_func(&(0x7f00000000c0)="c4e1f5f37b05c4c2f547525a808f4e00000000660f381dbc6007000000c4e2ad9174ae7e81fe000000008fe9a099d8e4ffc4c1935c17c4c3e141ae2f109dc2d8")
                syz_extract_tcp_res(&(0x7f0000000100), 0x5, 0x7ff)
                
            csource_test.go:124: failed to build program:
                // autogenerated by syzkaller (https://github.com/google/syzkaller)
                
                #define _GNU_SOURCE 
                
                #include <sys/types.h>
                
                #include <dirent.h>
                #include <errno.h>
                #include <pthread.h>
                #include <pwd.h>
                #include <signal.h>
                #include <stdarg.h>
                #include <stdbool.h>
                #include <stdint.h>
                #include <stdio.h>
                #include <stdlib.h>
                #include <string.h>
                #include <sys/endian.h>
                #include <sys/resource.h>
                #include <sys/stat.h>
                #include <sys/syscall.h>
                #include <sys/wait.h>
                #include <time.h>
                #include <unistd.h>
                
                static void kill_and_wait(int pid, int* status)
                {
                	kill(pid, SIGKILL);
                	while (waitpid(-1, status, 0) != pid) {
                	}
                }
                
                static void sleep_ms(uint64_t ms)
                {
                	usleep(ms * 1000);
                }
                
                static uint64_t current_time_ms(void)
                {
                	struct timespec ts;
                	if (clock_gettime(CLOCK_MONOTONIC, &ts))
                	exit(1);
                	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
                }
                
                static void use_temporary_dir(void)
                {
                	char tmpdir_template[] = "./syzkaller.XXXXXX";
                	char* tmpdir = mkdtemp(tmpdir_template);
                	if (!tmpdir)
                	exit(1);
                	if (chmod(tmpdir, 0777))
                	exit(1);
                	if (chdir(tmpdir))
                	exit(1);
                }
                
                static void __attribute__((noinline)) remove_dir(const char* dir)
                {
                	DIR* dp = opendir(dir);
                	if (dp == NULL) {
                		if (errno == EACCES) {
                			if (rmdir(dir))
                	exit(1);
                			return;
                		}
                	exit(1);
                	}
                	struct dirent* ep = 0;
                	while ((ep = readdir(dp))) {
                		if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
                			continue;
                		char filename[FILENAME_MAX];
                		snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
                		struct stat st;
                		if (lstat(filename, &st))
                	exit(1);
                		if (S_ISDIR(st.st_mode)) {
                			remove_dir(filename);
                			continue;
                		}
                		if (unlink(filename))
                	exit(1);
                	}
                	closedir(dp);
                	if (rmdir(dir))
                	exit(1);
                }
                
                static void thread_start(void* (*fn)(void*), void* arg)
                {
                	pthread_t th;
                	pthread_attr_t attr;
                	pthread_attr_init(&attr);
                	pthread_attr_setstacksize(&attr, 128 << 10);
                	int i = 0;
                	for (; i < 100; i++) {
                		if (pthread_create(&th, &attr, fn, arg) == 0) {
                			pthread_attr_destroy(&attr);
                			return;
                		}
                		if (errno == EAGAIN) {
                			usleep(50);
                			continue;
                		}
                		break;
                	}
                	exit(1);
                }
                
                typedef struct {
                	pthread_mutex_t mu;
                	pthread_cond_t cv;
                	int state;
                } event_t;
                
                static void event_init(event_t* ev)
                {
                	if (pthread_mutex_init(&ev->mu, 0))
                	exit(1);
                	if (pthread_cond_init(&ev->cv, 0))
                	exit(1);
                	ev->state = 0;
                }
                
                static void event_reset(event_t* ev)
                {
                	ev->state = 0;
                }
                
                static void event_set(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	if (ev->state)
                	exit(1);
                	ev->state = 1;
                	pthread_mutex_unlock(&ev->mu);
                	pthread_cond_broadcast(&ev->cv);
                }
                
                static void event_wait(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	while (!ev->state)
                		pthread_cond_wait(&ev->cv, &ev->mu);
                	pthread_mutex_unlock(&ev->mu);
                }
                
                static int event_isset(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                static int event_timedwait(event_t* ev, uint64_t timeout)
                {
                	uint64_t start = current_time_ms();
                	uint64_t now = start;
                	pthread_mutex_lock(&ev->mu);
                	for (;;) {
                		if (ev->state)
                			break;
                		uint64_t remain = timeout - (now - start);
                		struct timespec ts;
                		ts.tv_sec = remain / 1000;
                		ts.tv_nsec = (remain % 1000) * 1000 * 1000;
                		pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
                		now = current_time_ms();
                		if (now - start > timeout)
                			break;
                	}
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
                #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
                
                struct csum_inet {
                	uint32_t acc;
                };
                
                static void csum_inet_init(struct csum_inet* csum)
                {
                	csum->acc = 0;
                }
                
                static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
                {
                	if (length == 0)
                		return;
                	size_t i = 0;
                	for (; i < length - 1; i += 2)
                		csum->acc += *(uint16_t*)&data[i];
                	if (length & 1)
                		csum->acc += le16toh((uint16_t)data[length - 1]);
                	while (csum->acc > 0xffff)
                		csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
                }
                
                static uint16_t csum_inet_digest(struct csum_inet* csum)
                {
                	return ~csum->acc;
                }
                
                static void sandbox_common()
                {
                	if (setsid() == -1)
                	exit(1);
                	struct rlimit rlim;
                	rlim.rlim_cur = rlim.rlim_max = 128 << 20;
                	setrlimit(RLIMIT_AS, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 8 << 20;
                	setrlimit(RLIMIT_MEMLOCK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_FSIZE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_STACK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 0;
                	setrlimit(RLIMIT_CORE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 256;
                	setrlimit(RLIMIT_NOFILE, &rlim);
                }
                
                static void loop();
                
                static int wait_for_loop(int pid)
                {
                	if (pid < 0)
                	exit(1);
                	int status = 0;
                	while (waitpid(-1, &status, WUNTRACED) != pid) {
                	}
                	return WEXITSTATUS(status);
                }
                
                static int do_sandbox_setuid(void)
                {
                	int pid = fork();
                	if (pid != 0)
                		return wait_for_loop(pid);
                	sandbox_common();
                	char pwbuf[1024];
                	struct passwd *pw, pwres;
                	if (getpwnam_r("nobody", &pwres, pwbuf, sizeof(pwbuf), &pw) != 0 || !pw)
                	exit(1);
                	if (setgroups(0, NULL))
                	exit(1);
                	if (setgid(pw->pw_gid))
                	exit(1);
                	if (setuid(pw->pw_uid))
                	exit(1);
                	loop();
                	exit(1);
                }
                
                static long syz_execute_func(volatile long text)
                {
                	((void (*)(void))(text))();
                	return 0;
                }
                
                struct thread_t {
                	int created, call;
                	event_t ready, done;
                };
                
                static struct thread_t threads[16];
                static void execute_call(int call);
                static int running;
                
                static void* thr(void* arg)
                {
                	struct thread_t* th = (struct thread_t*)arg;
                	for (;;) {
                		event_wait(&th->ready);
                		event_reset(&th->ready);
                		execute_call(th->call);
                		__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
                		event_set(&th->done);
                	}
                	return 0;
                }
                
                static void execute_one(void)
                {
                	int i, call, thread;
                	for (call = 0; call < 13; call++) {
                		for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
                			struct thread_t* th = &threads[thread];
                			if (!th->created) {
                				th->created = 1;
                				event_init(&th->ready);
                				event_init(&th->done);
                				event_set(&th->done);
                				thread_start(thr, th);
                			}
                			if (!event_isset(&th->done))
                				continue;
                			event_reset(&th->done);
                			th->call = call;
                			__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
                			event_set(&th->ready);
                			event_timedwait(&th->done, 45);
                			break;
                		}
                	}
                	for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
                		sleep_ms(1);
                }
                
                static void execute_one(void);
                
                #define WAIT_FLAGS 0
                
                static void loop(void)
                {
                	int iter = 0;
                	for (;; iter++) {
                		char cwdbuf[32];
                		sprintf(cwdbuf, "./%d", iter);
                		if (mkdir(cwdbuf, 0777))
                	exit(1);
                		int pid = fork();
                		if (pid < 0)
                	exit(1);
                		if (pid == 0) {
                			if (chdir(cwdbuf))
                	exit(1);
                			execute_one();
                			exit(0);
                		}
                		int status = 0;
                		uint64_t start = current_time_ms();
                		for (;;) {
                			if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
                				break;
                			sleep_ms(1);
                			if (current_time_ms() - start < 5 * 1000)
                				continue;
                			kill_and_wait(pid, &status);
                			break;
                		}
                		remove_dir(cwdbuf);
                	}
                }
                
                uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
                
                void execute_call(int call)
                {
                		intptr_t res = 0;
                	switch (call) {
                	case 0:
                memcpy((void*)0x10000000, "\xec\x04\xa9\x04\xb9\xd2\xea\x02\xfa\xb2\xdf\x1d\x9d\xe3\x9f\x3f\x5a\xa2\x34\x43\x97\xe1\x86\x20\x4d\x39\xd7\x4d\xa1\x56\xe7\xc6\xcd\x98\x19\x5b\x7b\x83\xc6\x52\xb0\x6b\x62\x22\xbd\xef\x33\x63\x96\x1b\xf4\x7e\x9b\x53\x0f\xbf\x65\xba\xe3\x60\x7b\x60\x94\x1e\x27\x15\xbd\x67\x8f\xce\xbc\x55\x24\xbc\xef\xd3\x18\x4d", 78);
                		syscall(SYS_setsockopt, 0xffffff9c, 0, 0, 0x10000000, 0x4e);
                		break;
                	case 1:
                *(uint8_t*)0x10000180 = 0x10;
                *(uint32_t*)0x10000184 = 0x10000080;
                memcpy((void*)0x10000080, "\xde\x11\xc2\xa7\x74\x19\x1d\x70\xf5\x1e\x7c\x3e\x37\x5c\x28\x14\xac\x72\xc2\xd5\xd0\x40\x4a\x2e\x3d\x5b\xaf\x92\x16\x1f\x3b\x45\x1e\xfe\x9c\x4c\x79\xd7\x66\x06\x68\xf6\x07\x3e\x2f\x76\xc5\xf2\x14\x51\x95\xe8\xc1\xa4\xec\x34\xb6\xf6\x9c\x1b\x58\x27\x68\x20\x7b\x28\xa9\x79\xf0\x5a\xdc\x14\xa3\x35\x7f\xe7\xc4\x93\xfc\x81\xa9\x17\x75\x24\x63\x1b\xb2\x09\xbe\x63\x7f\x86\x95\x74\x7f\xa7\xcf\x1c\x68\xac\x69\x1f\x16\x9c\x1b\x8f\xb6\x7d\x7a\x37\x76\xdd\xfc\x62\x0f\xfb\xe6\x83\x1f\x74\xd2\xf2\xd0\x89\xa4\xff\xec\xf5\x10\xa9\x97\x02\x25\x8c\x58\xea\x9e\x87\x1d\x4f\x4a\xb9\xa3\x47\xaa\xbd\xbb\x03\x58\x5b\x37\xb5\xc7\x94\x36\xc0\xc1\x16\x0a\x58\x76\xb6\x1b\xbf\x0c\x81\x4b\xb4\x9a\x27\xa3\x60\x82\xdf\x13\xcb\x2f\x9d\xe2\xf9\x42\xb6\xac\x7e\x15\x88\x80\xcf\xc0\x3c\xfd\xcc\xca\x9f\xc0\xf2\x34\x7e\xb5\x43\xa3\x43\xb4\xc9\x27\x07\xfe\x73\x6a\x86\xa3\x5d\x58\xe2\x6f\x6f\xd2\xe9\xec\x8f\x82", 221);
                *(uint32_t*)0x10000188 = 7;
                *(uint32_t*)0x1000018c = 0x5a764000;
                *(uint32_t*)0x10000190 = 6;
                		syscall(SYS_ioctl, -1, 0xc0284459, 0x10000180);
                		break;
                	case 2:
                *(uint8_t*)0x10000200 = 0x1c;
                *(uint8_t*)0x10000201 = 0x1c;
                *(uint16_t*)0x10000202 = htobe16(0x4e23);
                *(uint32_t*)0x10000204 = 6;
                *(uint64_t*)0x10000208 = htobe64(0);
                *(uint64_t*)0x10000210 = htobe64(1);
                *(uint32_t*)0x10000218 = 0x2d99;
                		syscall(SYS_recvfrom, 0xffffff9c, 0x100001c0, 0x17, 2, 0x10000200, 0x1c);
                		break;
                	case 3:
                memcpy((void*)0x10000240, "./file0\000", 8);
                memcpy((void*)0x10000280, "\000", 1);
                		res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                		if (res != -1)
                				r[0] = res;
                		break;
                	case 4:
                *(uint32_t*)0x100015c0 = 0x10000540;
                *(uint32_t*)0x10000540 = 0x100002c0;
                memcpy((void*)0x100002c0, "\xef\xac\xad\xe5\x8a\xb0\x19\x23\x51\xa1\x02\xad\xa3\x2a\xd1\xf4\x1e\x42\x9e\xdf\x6c\x4a\x51\x3a\xc6\xd6\x69\xca\xdb\x22\x2e\xb6\x82\x97\xab\x8f\x9f\x7b\x32\x34\xd0\xc6\xcf\xa2\x80\xad\x14\xdc\x1c\x4c\x34\x17\x51\x19\x44\x6d\x79\xa0\x30\xd4\x8b\x57\x30\x4e\xb9\x0b\x42\x8c\x20\x23\x82\xd8\x6c\xd7\x1e\x9c\x1e\xcc\x8d\x3e\x2d\x76\x4a\xae\x37\x14\xcb\x59\x1e\xb0\x27\xe4\x69\x43\xe2\x3e\xb7\x65\x68\x75\x86\x7e\x60\x3c\xf1\x38\x92\xa7\x4c\x42\xbb\x18\x44\xc2\x7f\x7f\x45\x4f\x96\x61\xf1\xdb\xb3\x50\x04\xad\xa4\xd6\xd7\x5b\x1d\xf3\x42\xe9\x67\x49\x3d\x20\x7d\x6b\x8b\x4e\xdc\xbf\x9d\x1e\x37\x84\x45\x57\x36\x84\xed\x13\x9b\x67\x1a\xbf\x65\x76\xed\xf8\xd7\x34\x2c\xd8\x64\x9d\x37\x69\x70\xac\xbd\xe2\x24\xa7\xb0\xb6\xa9\x75\xa8\xba\x0a\x76\x8e\xd6\xab\xe1\x6c\x1b\x69\x4f\x65\xdd\x42\x31\xf4\x8c\x28\x84", 200);
                *(uint32_t*)0x10000544 = 0xc8;
                *(uint32_t*)0x10000548 = 0x100003c0;
                memcpy((void*)0x100003c0, "\xa6\xe4\xfe\x18\x6c\x76\x0a\xc2\xeb\xbc\xf9\xef\xda\x5e\x22\xe2\xdf\x6f\x15\x3f\xcc\xda\x1c\x16\x97\x60\x37\xd0\x3e\xe0\x04\xc3\xfb\xba\x5d\x35\xb6\xc0\x83\x13\x0f\xc7\x05\xf9\x58\x89\xba\x6a\xdb\xe5\xe3\xa7\xa5\xe7\x01\x36\xa0\xca\x08\x5b\x7e\x50\x4d\x0d\xf5\x5f\xe1\x84\xa9\xbd\x7a\x82", 72);
                *(uint32_t*)0x1000054c = 0x48;
                *(uint32_t*)0x10000550 = 0x10000440;
                memcpy((void*)0x10000440, "\xc7\xe0\x00\x30\xb3\xc4\x54\x17\x43\xee\x65\x13", 12);
                *(uint32_t*)0x10000554 = 0xc;
                *(uint32_t*)0x10000558 = 0x10000480;
                memcpy((void*)0x10000480, "\xa4\xa6\x7a\x4e\x72\x49\x2b\x9f\xab\x63\x79\xe4\xc0\xf3\x5b\x22\xb6\x9b\x6e\x7a\xef\xc5\x6b\xee\xfa\x85\x7a\xe2\x85\x43", 30);
                *(uint32_t*)0x1000055c = 0x1e;
                *(uint32_t*)0x10000560 = 0x100004c0;
                memcpy((void*)0x100004c0, "\x8f\x09\x5f\x8d\xf1\xc6\xbc\x4d\xfc\x1d\x82\x6f\x02\xdf\xa7\x79\x4b\xeb\xf9\xe7\xff\xc7\x16\x0f\x27\x6a\x53\xd1\xab\xc9\x96\xfc\xa8\xc8\xdb\xc7\xc7\x9c\x09\xcd\x5f\x95\x47\x75\xc9\xe8\xfc\x1c\xf2\xe0\xe3\xc0\x54\xfb\x54\xb6\x62\xd1\xb4\x5f\x52\x35\xfd\xbf\x86\x0c\x3f\xed\x3d\xc3\x4c\xeb\x30\xc4\x4b\xaa\x4d\xed\x7d\xe7\xe9\x53\x3f\x4d\xca\x14\x6d\xb0\xdb\x35\xa9\x3b\xa6\x54\xd4\x90\x11\xd9\xcb\x98\xd1\x57\x6b\x73\x1b\x9c\x2b\xb5\x8c\x0d\xf4\xed\xee\x6e\xf5\xae\x1f\x8b\x6b\xc9\x64\x6f\x5b\x4a\xde\x4d\xd5\x2a", 128);
                *(uint32_t*)0x10000564 = 0x80;
                *(uint32_t*)0x100015c4 = 5;
                *(uint32_t*)0x100015c8 = 0x10001580;
                *(uint32_t*)0x10001580 = 0x10000580;
                memcpy((void*)0x10000580, 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d\x78\x21\x78\x31\x91\xe0\x3b\x56\x82\xae\x7c\x0d\xad\xd4\xa9\x27\x24\xaa\xfc\xe0\x24\xae\x0a\xcc\x8e\x39\xcd\x3e\xaf\x4e\xde\x02\x49\x07\xe5\x09\x77\x22\x8d\xf4\xd3\xa6\xa4\x28\x88\x6f\xb2\x4f\x9a\xa1\x53\x66\xbc\xae\x6e\xbb\x17\x51\x40\x2b\x9f\x34\xa3\x85\x40\xc0\x92\x93\x04\x7f\xe9\x43\x73\xc1\x7a\x9c\xcc\xff\x1a\x1d\xe3\x22\xef\xc3\xfe\x33\x48\x01\xaa\x76\x44\x4d\xd0\xd4\xc0\x17\xfe\xb9\xd4\x53\xeb\x35\xf2\x1e\xfe\x33\x2e\xd9\xae\x75\x57\x1c\xa5\x77\x8e\xb4\xb6\x9d\x94\xf7\x69\xdb\xf0\x8c\xaf\xa0\x7a\x7f\x42\xf1\x2f\x8f\x2a\x9e\x3e\xb6\x97\x6e\x01\x62\xc3\xf2\x34\x51\xd9\x74\xc8\x7f\x60\x63\xbd\x31\xdb\x13\x85\x81\x1b\x55\x4c\x85\x50\xba\x51\x30\xf8\x8d\x79\x7a\x8b\xab\x3e\x01\xb2\x1e\x5f\xeb\xd2\xb0\xf6\x6e\x8f\x58\x42\xc1\x04\x10\x74\x28\x42\x3a\x8c\x8d\x39\x4c\x5e\x19\xea\x71\x75\x87\xa9\x2f\xe0\x70\xe5\xb4\x9e\xc4\xaf\x4b\xc6\x32\xe2\xf3\xe8\x0f\xa6\x51\x16\xf3\x8e\x12\xd8\xa2\x18\xf4\xf2\x36\x10\x5e\x39\x08\x02\xb3\xf9\x92\x16\x50\xba\x41\x81\x77\xf8\x33\x26\x18\x61\xab\xee\xbf\xae\xc3\x19\x89\x49\x2f\x7f\x02\xd1\xb0\x62\x16\x9d\x3b\xee\x9a\xa3\x99\xd3\xdf\xa9\xf9\x8d\x48\x29\xe9\x8f\xe7\x67\x23\x6f\x5d\xd9\x81\x09\x43\x9d\x31\x99\x9c\x03\x51\x9e\xa3\x8d\xe2\x5b\x3f\xe3\x8b\x42\x0f\xbe\x45\x52\xe9\xad\xed\xb3\x07\xfd\xff\xc9\x8e\xa4\x58\x6d\x60\xee\x31\x33\x28\xc5\xb6\xc3\xff\x50\x4e\xbe\xd2\x8f\x56\x69\x80\x16\xdd\x79\x6b\x9b\x9e\x85\x0d\x79\x18\xd8\xb8", 4096);
                *(uint32_t*)0x10001584 = 0x1000;
                *(uint32_t*)0x100015cc = 1;
                		syscall(SYS_sendfile, (intptr_t)r[0], 0xffffff9c, 8, 0x800ull, 0x100015c0, 0x10001600, 9);
                		break;
                	case 5:
                memcpy((void*)0x10001640, "\x6c\x81\x1b\xa5\x2c\x13\x9b\x40\xdc\x56\x80\xcb\x02\x75\xfd\xd4\x40\x46\x8e\x4d\xae\x07\xc7\x45\xba\x75\x8c\xb2\x66\x74\x2f\x46\x8f\xc4\x2d\xa0\x66\x9f\x60\x61\xcb\x2c\x9f\x92\x1e\x95\x34\x51\xb3\x13\x5e\x01\x74\xfe\x8e\xb1\xae\xbb\x2c\x3e\xb8\xa7\xfb\x3f\xc8\xde\xa1\x8e\x65\x2d\x01\xe7\x18\x4c\xa6\x5d\xce\x04\xf4\x67\x9a\xfe\xd2\x76\x6b\x06\x73\x49\xde\x7a\x5e\xf6\x0b\x58\x69\x92\x91\x9a\x20\x38\x2c\x0a\x1f\x20\xaf\x0c\x9c\x7f\xac\x61\xcf\x18\x38\x3e\x36\xfe\x56\x50\x2f\x5f\x26\xb8", 122);
                		syscall(SYS_ioctl, -1, 0xc0104453, 0x10001640);
                		break;
                	case 6:
                		res = syscall(SYS_freebsd10_pipe, 0x100016c0);
                		if (res != -1) {
                r[1] = *(uint32_t*)0x100016c0;
                r[2] = *(uint32_t*)0x100016c4;
                		}
                		break;
                	case 7:
                *(uint8_t*)0x10001700 = 0x10;
                *(uint8_t*)0x10001701 = 2;
                *(uint16_t*)0x10001702 = htobe16(0x4e23);
                *(uint32_t*)0x10001704 = htobe32(7);
                *(uint8_t*)0x10001708 = 0;
                *(uint8_t*)0x10001709 = 0;
                *(uint8_t*)0x1000170a = 0;
                *(uint8_t*)0x1000170b = 0;
                *(uint8_t*)0x1000170c = 0;
                *(uint8_t*)0x1000170d = 0;
                *(uint8_t*)0x1000170e = 0;
                *(uint8_t*)0x1000170f = 0;
                *(uint32_t*)0x10001740 = 0x10;
                		syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x8002, 0x10001700, 0x10001740);
                		break;
                	case 8:
                *(uint32_t*)0x100017c0 = 4;
                		syscall(SYS_getsockopt, -1, 0x84, 0x20, 0x10001780, 0x100017c0);
                		break;
                	case 9:
                *(uint32_t*)0x10001800 = 8;
                *(uint16_t*)0x10001804 = 0x1000;
                *(uint16_t*)0x10001806 = 0;
                *(uint16_t*)0x10001808 = 0x8000;
                *(uint16_t*)0x1000180a = 0x200;
                *(uint16_t*)0x1000180c = 0x4000;
                *(uint16_t*)0x1000180e = 0;
                *(uint16_t*)0x10001810 = 1;
                *(uint16_t*)0x10001812 = 0;
                *(uint32_t*)0x10001840 = 0x14;
                		syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x14, 0x10001800, 0x10001840);
                		break;
                	case 10:
                memcpy((void*)0x10000000, "\xc9\x0c\x8a\x7c\x33\x7f", 6);
                *(uint8_t*)0x10000006 = 0xaa;
                *(uint8_t*)0x10000007 = 0xaa;
                *(uint8_t*)0x10000008 = 0xaa;
                *(uint8_t*)0x10000009 = 0xaa;
                *(uint8_t*)0x1000000a = 0xaa;
                *(uint8_t*)0x1000000b = 0xaa;
                *(uint16_t*)0x1000000c = htobe16(0x8100);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 0, 3);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 3, 1);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 4, 12);
                *(uint16_t*)0x10000010 = htobe16(0x800);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 0x1c, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 4, 4, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 0, 2);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 2, 6);
                *(uint16_t*)0x10000014 = htobe16(0x81);
                *(uint16_t*)0x10000016 = htobe16(0x65);
                *(uint16_t*)0x10000018 = htobe16(5);
                *(uint8_t*)0x1000001a = 1;
                *(uint8_t*)0x1000001b = 0x46;
                *(uint16_t*)0x1000001c = htobe16(0);
                *(uint32_t*)0x1000001e = htobe32(-1);
                *(uint8_t*)0x10000022 = 0xac;
                *(uint8_t*)0x10000023 = 0x14;
                *(uint8_t*)0x10000024 = 0;
                *(uint8_t*)0x10000025 = 0xbb;
                *(uint8_t*)0x10000026 = 0;
                *(uint8_t*)0x10000027 = 0x44;
                *(uint8_t*)0x10000028 = 0xc;
                *(uint8_t*)0x10000029 = 5;
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 0, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 3, 4, 4);
                *(uint32_t*)0x1000002b = htobe32(9);
                *(uint32_t*)0x1000002f = htobe32(4);
                *(uint8_t*)0x10000033 = 0x83;
                *(uint8_t*)0x10000034 = 0xb;
                *(uint8_t*)0x10000035 = 6;
                *(uint32_t*)0x10000036 = htobe32(0xe0000001);
                *(uint32_t*)0x1000003a = htobe32(-1);
                *(uint8_t*)0x1000003e = 0;
                *(uint8_t*)0x1000003f = 4;
                memcpy((void*)0x10000040, "\xa4\xd4", 2);
                *(uint8_t*)0x10000042 = 0x89;
                *(uint8_t*)0x10000043 = 0x13;
                *(uint8_t*)0x10000044 = 4;
                *(uint8_t*)0x10000045 = 0xac;
                *(uint8_t*)0x10000046 = 0x14;
                *(uint8_t*)0x10000047 = 0;
                *(uint8_t*)0x10000048 = 0xbb;
                *(uint32_t*)0x10000049 = htobe32(-1);
                *(uint8_t*)0x1000004d = 0xac;
                *(uint8_t*)0x1000004e = 0x14;
                *(uint8_t*)0x1000004f = 0;
                *(uint8_t*)0x10000050 = 0xbb;
                *(uint32_t*)0x10000051 = htobe32(0);
                *(uint8_t*)0x10000055 = 0x94;
                *(uint8_t*)0x10000056 = 6;
                *(uint32_t*)0x10000057 = htobe32(9);
                *(uint8_t*)0x1000005b = 0x94;
                *(uint8_t*)0x1000005c = 6;
                *(uint32_t*)0x1000005d = htobe32(0x80000001);
                *(uint8_t*)0x10000061 = 1;
                *(uint8_t*)0x10000062 = 0x83;
                *(uint8_t*)0x10000063 = 0x1f;
                *(uint8_t*)0x10000064 = 2;
                *(uint32_t*)0x10000065 = htobe32(0xe0000002);
                *(uint32_t*)0x10000069 = htobe32(0xe0000001);
                *(uint32_t*)0x1000006d = htobe32(0x7f000001);
                *(uint32_t*)0x10000071 = htobe32(0);
                *(uint32_t*)0x10000075 = htobe32(0x7f000001);
                *(uint32_t*)0x10000079 = htobe32(0x7f000001);
                *(uint32_t*)0x1000007d = htobe32(0xe0000001);
                memcpy((void*)0x10000082, "\x8d\x86\x2d\x09\x9b\x6b\xb2\xba\x6a\xea\xa6\xab\xd3\xe9\xd5\x82\xc9", 17);
                		struct csum_inet csum_1;
                		csum_inet_init(&csum_1);
                csum_inet_update(&csum_1, (const uint8_t*)0x10000012, 112);
                *(uint16_t*)0x1000001c = csum_inet_digest(&csum_1);
                		break;
                	case 11:
                memcpy((void*)0x100000c0, "\xc4\xe1\xf5\xf3\x7b\x05\xc4\xc2\xf5\x47\x52\x5a\x80\x8f\x4e\x00\x00\x00\x00\x66\x0f\x38\x1d\xbc\x60\x07\x00\x00\x00\xc4\xe2\xad\x91\x74\xae\x7e\x81\xfe\x00\x00\x00\x00\x8f\xe9\xa0\x99\xd8\xe4\xff\xc4\xc1\x93\x5c\x17\xc4\xc3\xe1\x41\xae\x2f\x10\x9d\xc2\xd8", 64);
                syz_execute_func(0x100000c0);
                		break;
                	case 12:
                		break;
                	}
                
                }
                int main(void)
                {
                		syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
                			use_temporary_dir();
                			do_sandbox_setuid();
                	return 0;
                }
                
                <stdin>:383:17: error: use of undeclared identifier 'SYS_shm_open2'
                                res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                                              ^
                1 error generated.
                
                compiler invocation: clang [-o /tmp/syz-executor691535594 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow]
        --- FAIL: TestGenerate/freebsd/386/9 (1.72s)
            csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false}
                program:
                setsockopt$inet_opts(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000000)="ec04a904b9d2ea02fab2df1d9de39f3f5aa2344397e186204d39d74da156e7c6cd98195b7b83c652b06b6222bdef3363961bf47e9b530fbf65bae3607b60941e2715bd678fcebc5524bcefd3184d", 0x4e)
                ioctl$DIOCSETIFFLAG(0xffffffffffffffff, 0xc0284459, &(0x7f0000000180)={0x10, &(0x7f0000000080)="de11c2a774191d70f51e7c3e375c2814ac72c2d5d0404a2e3d5baf92161f3b451efe9c4c79d7660668f6073e2f76c5f2145195e8c1a4ec34b6f69c1b582768207b28a979f05adc14a3357fe7c493fc81a9177524631bb209be637f8695747fa7cf1c68ac691f169c1b8fb67d7a3776ddfc620ffbe6831f74d2f2d089a4ffecf510a99702258c58ea9e871d4f4ab9a347aabdbb03585b37b5c79436c0c1160a5876b61bbf0c814bb49a27a36082df13cb2f9de2f942b6ac7e158880cfc03cfdccca9fc0f2347eb543a343b4c92707fe736a86a35d58e26f6fd2e9ec8f82", 0x7, 0x5a764000, 0x6})
                recvfrom$inet6(0xffffffffffffff9c, &(0x7f00000001c0)=""/23, 0x17, 0x2, &(0x7f0000000200)={0x1c, 0x1c, 0x3, 0x6, @loopback, 0x2d99}, 0x1c)
                r0 = shm_open2(&(0x7f0000000240)='./file0\x00', 0x800, 0x0, 0x7, &(0x7f0000000280)='\x00')
                sendfile(r0, 0xffffffffffffff9c, 0x8, 0x800, &(0x7f00000015c0)={&(0x7f0000000540)=[{&(0x7f00000002c0)="efacade58ab0192351a102ada32ad1f41e429edf6c4a513ac6d669cadb222eb68297ab8f9f7b3234d0c6cfa280ad14dc1c4c34175119446d79a030d48b57304eb90b428c202382d86cd71e9c1ecc8d3e2d764aae3714cb591eb027e46943e23eb7656875867e603cf13892a74c42bb1844c27f7f454f9661f1dbb35004ada4d6d75b1df342e967493d207d6b8b4edcbf9d1e378445573684ed139b671abf6576edf8d7342cd8649d376970acbde224a7b0b6a975a8ba0a768ed6abe16c1b694f65dd4231f48c2884", 0xc8}, {&(0x7f00000003c0)="a6e4fe186c760ac2ebbcf9efda5e22e2df6f153fccda1c16976037d03ee004c3fbba5d35b6c083130fc705f95889ba6adbe5e3a7a5e70136a0ca085b7e504d0df55fe184a9bd7a82", 0x48}, {&(0x7f0000000440)="c7e00030b3c4541743ee6513", 0xc}, {&(0x7f0000000480)="a4a67a4e72492b9fab6379e4c0f35b22b69b6e7aefc56beefa857ae28543", 0x1e}, {&(0x7f00000004c0)="8f095f8df1c6bc4dfc1d826f02dfa7794bebf9e7ffc7160f276a53d1abc996fca8c8dbc7c79c09cd5f954775c9e8fc1cf2e0e3c054fb54b662d1b45f5235fdbf860c3fed3dc34ceb30c44baa4ded7de7e9533f4dca146db0db35a93ba654d49011d9cb98d1576b731b9c2bb58c0df4edee6ef5ae1f8b6bc9646f5b4ade4dd52a", 0x80}], 0x5, &(0x7f0000001580)=[{&(0x7f0000000580)="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", 0x1000}], 0x1}, &(0x7f0000001600), 0x9)
                ioctl$DIOCXROLLBACK(0xffffffffffffffff, 0xc0104453, &(0x7f0000001640)="6c811ba52c139b40dc5680cb0275fdd440468e4dae07c745ba758cb266742f468fc42da0669f6061cb2c9f921e953451b3135e0174fe8eb1aebb2c3eb8a7fb3fc8dea18e652d01e7184ca65dce04f4679afed2766b067349de7a5ef60b586992919a20382c0a1f20af0c9c7fac61cf18383e36fe56502f5f26b8")
                freebsd10_pipe(&(0x7f00000016c0)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
                setsockopt$inet6_sctp_SCTP_BINDX_REM_ADDR(r2, 0x84, 0x8002, &(0x7f0000001700)=@in={0x10, 0x2, 0x3, @rand_addr=0x7}, &(0x7f0000001740)=0x10)
                getsockopt$inet6_sctp_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000001780), &(0x7f00000017c0)=0x4)
                getsockopt$inet6_sctp_SCTP_HMAC_IDENT(r1, 0x84, 0x14, &(0x7f0000001800)={0x8, [0x1000, 0x0, 0x8000, 0x200, 0x4000, 0x0, 0x1, 0x0]}, &(0x7f0000001840)=0x14)
                syz_emit_ethernet(0x93, &(0x7f0000000000)={@random="c90c8a7c337f", @local, [{}], {@ipv4={0x800, {{0x1c, 0x4, 0x0, 0x0, 0x81, 0x65, 0x5, 0x1, 0x46, 0x0, @broadcast, @remote={0xac, 0x14, 0x0}, {[@end, @timestamp={0x44, 0xc, 0x5, 0x0, 0x3, [{[], 0x9}, {[], 0x4}]}, @lsrr={0x83, 0xb, 0x6, [@multicast1, @broadcast]}, @generic={0x0, 0x4, "a4d4"}, @ssrr={0x89, 0x13, 0x4, [@remote={0xac, 0x14, 0x0}, @broadcast, @remote={0xac, 0x14, 0x0}, @empty]}, @ra={0x94, 0x6, 0x9}, @ra={0x94, 0x6, 0x80000001}, @noop, @lsrr={0x83, 0x1f, 0x2, [@multicast2, @multicast1, @loopback, @empty, @loopback, @loopback, @multicast1]}]}}, @generic="8d862d099b6bb2ba6aeaa6abd3e9d582c9"}}}})
                syz_execute_func(&(0x7f00000000c0)="c4e1f5f37b05c4c2f547525a808f4e00000000660f381dbc6007000000c4e2ad9174ae7e81fe000000008fe9a099d8e4ffc4c1935c17c4c3e141ae2f109dc2d8")
                syz_extract_tcp_res(&(0x7f0000000100), 0x5, 0x7ff)
                
            csource_test.go:124: failed to build program:
                // autogenerated by syzkaller (https://github.com/google/syzkaller)
                
                #define _GNU_SOURCE 
                
                #include <sys/types.h>
                
                #include <dirent.h>
                #include <errno.h>
                #include <fcntl.h>
                #include <net/ethernet.h>
                #include <net/if.h>
                #include <net/if_arp.h>
                #include <net/if_tun.h>
                #include <netinet/in.h>
                #include <netinet/ip.h>
                #include <netinet/ip6.h>
                #include <netinet/tcp.h>
                #include <pthread.h>
                #include <pwd.h>
                #include <signal.h>
                #include <stdarg.h>
                #include <stdbool.h>
                #include <stdint.h>
                #include <stdio.h>
                #include <stdlib.h>
                #include <string.h>
                #include <sys/endian.h>
                #include <sys/resource.h>
                #include <sys/stat.h>
                #include <sys/syscall.h>
                #include <sys/uio.h>
                #include <sys/wait.h>
                #include <time.h>
                #include <unistd.h>
                
                #include <netinet/if_ether.h>
                
                static unsigned long long procid;
                
                static void kill_and_wait(int pid, int* status)
                {
                	kill(pid, SIGKILL);
                	while (waitpid(-1, status, 0) != pid) {
                	}
                }
                
                static void sleep_ms(uint64_t ms)
                {
                	usleep(ms * 1000);
                }
                
                static uint64_t current_time_ms(void)
                {
                	struct timespec ts;
                	if (clock_gettime(CLOCK_MONOTONIC, &ts))
                	exit(1);
                	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
                }
                
                static void use_temporary_dir(void)
                {
                	char tmpdir_template[] = "./syzkaller.XXXXXX";
                	char* tmpdir = mkdtemp(tmpdir_template);
                	if (!tmpdir)
                	exit(1);
                	if (chmod(tmpdir, 0777))
                	exit(1);
                	if (chdir(tmpdir))
                	exit(1);
                }
                
                static void __attribute__((noinline)) remove_dir(const char* dir)
                {
                	DIR* dp = opendir(dir);
                	if (dp == NULL) {
                		if (errno == EACCES) {
                			if (rmdir(dir))
                	exit(1);
                			return;
                		}
                	exit(1);
                	}
                	struct dirent* ep = 0;
                	while ((ep = readdir(dp))) {
                		if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
                			continue;
                		char filename[FILENAME_MAX];
                		snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
                		struct stat st;
                		if (lstat(filename, &st))
                	exit(1);
                		if (S_ISDIR(st.st_mode)) {
                			remove_dir(filename);
                			continue;
                		}
                		if (unlink(filename))
                	exit(1);
                	}
                	closedir(dp);
                	if (rmdir(dir))
                	exit(1);
                }
                
                static void thread_start(void* (*fn)(void*), void* arg)
                {
                	pthread_t th;
                	pthread_attr_t attr;
                	pthread_attr_init(&attr);
                	pthread_attr_setstacksize(&attr, 128 << 10);
                	int i = 0;
                	for (; i < 100; i++) {
                		if (pthread_create(&th, &attr, fn, arg) == 0) {
                			pthread_attr_destroy(&attr);
                			return;
                		}
                		if (errno == EAGAIN) {
                			usleep(50);
                			continue;
                		}
                		break;
                	}
                	exit(1);
                }
                
                typedef struct {
                	pthread_mutex_t mu;
                	pthread_cond_t cv;
                	int state;
                } event_t;
                
                static void event_init(event_t* ev)
                {
                	if (pthread_mutex_init(&ev->mu, 0))
                	exit(1);
                	if (pthread_cond_init(&ev->cv, 0))
                	exit(1);
                	ev->state = 0;
                }
                
                static void event_reset(event_t* ev)
                {
                	ev->state = 0;
                }
                
                static void event_set(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	if (ev->state)
                	exit(1);
                	ev->state = 1;
                	pthread_mutex_unlock(&ev->mu);
                	pthread_cond_broadcast(&ev->cv);
                }
                
                static void event_wait(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	while (!ev->state)
                		pthread_cond_wait(&ev->cv, &ev->mu);
                	pthread_mutex_unlock(&ev->mu);
                }
                
                static int event_isset(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                static int event_timedwait(event_t* ev, uint64_t timeout)
                {
                	uint64_t start = current_time_ms();
                	uint64_t now = start;
                	pthread_mutex_lock(&ev->mu);
                	for (;;) {
                		if (ev->state)
                			break;
                		uint64_t remain = timeout - (now - start);
                		struct timespec ts;
                		ts.tv_sec = remain / 1000;
                		ts.tv_nsec = (remain % 1000) * 1000 * 1000;
                		pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
                		now = current_time_ms();
                		if (now - start > timeout)
                			break;
                	}
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
                #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
                
                struct csum_inet {
                	uint32_t acc;
                };
                
                static void csum_inet_init(struct csum_inet* csum)
                {
                	csum->acc = 0;
                }
                
                static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
                {
                	if (length == 0)
                		return;
                	size_t i = 0;
                	for (; i < length - 1; i += 2)
                		csum->acc += *(uint16_t*)&data[i];
                	if (length & 1)
                		csum->acc += le16toh((uint16_t)data[length - 1]);
                	while (csum->acc > 0xffff)
                		csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
                }
                
                static uint16_t csum_inet_digest(struct csum_inet* csum)
                {
                	return ~csum->acc;
                }
                
                static int tunfd = -1;
                
                #define MAX_TUN 4
                #define TUN_IFACE "tap%d"
                #define TUN_DEVICE "/dev/tap%d"
                
                #define LOCAL_MAC "aa:aa:aa:aa:aa:aa"
                #define REMOTE_MAC "aa:aa:aa:aa:aa:bb"
                #define LOCAL_IPV4 "172.20.%d.170"
                #define REMOTE_IPV4 "172.20.%d.187"
                #define LOCAL_IPV6 "fe80::%02hxaa"
                #define REMOTE_IPV6 "fe80::%02hxbb"
                
                static void vsnprintf_check(char* str, size_t size, const char* format, va_list args)
                {
                	int rv = vsnprintf(str, size, format, args);
                	if (rv < 0)
                	exit(1);
                	if ((size_t)rv >= size)
                	exit(1);
                }
                
                static void snprintf_check(char* str, size_t size, const char* format, ...)
                {
                	va_list args;
                	va_start(args, format);
                	vsnprintf_check(str, size, format, args);
                	va_end(args);
                }
                
                #define COMMAND_MAX_LEN 128
                #define PATH_PREFIX "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin "
                #define PATH_PREFIX_LEN (sizeof(PATH_PREFIX) - 1)
                
                static void execute_command(bool panic, const char* format, ...)
                {
                	va_list args;
                	va_start(args, format);
                	char command[PATH_PREFIX_LEN + COMMAND_MAX_LEN];
                	memcpy(command, PATH_PREFIX, PATH_PREFIX_LEN);
                	vsnprintf_check(command + PATH_PREFIX_LEN, COMMAND_MAX_LEN, format, args);
                	va_end(args);
                	int rv = system(command);
                	if (rv) {
                		if (panic)
                	exit(1);
                	}
                }
                
                static void initialize_tun(int tun_id)
                {
                	if (tun_id < 0 || tun_id >= MAX_TUN) {
                	exit(1);
                	}
                	char tun_device[sizeof(TUN_DEVICE)];
                	snprintf_check(tun_device, sizeof(tun_device), TUN_DEVICE, tun_id);
                	char tun_iface[sizeof(TUN_IFACE)];
                	snprintf_check(tun_iface, sizeof(tun_iface), TUN_IFACE, tun_id);
                	execute_command(0, "ifconfig %s destroy", tun_device);
                	tunfd = open(tun_device, O_RDWR | O_NONBLOCK);
                	if ((tunfd < 0) && (errno == ENOENT)) {
                		execute_command(0, "kldload -q if_tap");
                		tunfd = open(tun_device, O_RDWR | O_NONBLOCK);
                	}
                	if (tunfd == -1) {
                		printf("tun: can't open %s: errno=%d\n", tun_device, errno);
                		return;
                	}
                	const int kTunFd = 240;
                	if (dup2(tunfd, kTunFd) < 0)
                	exit(1);
                	close(tunfd);
                	tunfd = kTunFd;
                	char local_mac[sizeof(LOCAL_MAC)];
                	snprintf_check(local_mac, sizeof(local_mac), LOCAL_MAC);
                	execute_command(1, "ifconfig %s ether %s", tun_iface, local_mac);
                	char local_ipv4[sizeof(LOCAL_IPV4)];
                	snprintf_check(local_ipv4, sizeof(local_ipv4), LOCAL_IPV4, tun_id);
                	execute_command(1, "ifconfig %s inet %s netmask 255.255.255.0", tun_iface, local_ipv4);
                	char remote_mac[sizeof(REMOTE_MAC)];
                	char remote_ipv4[sizeof(REMOTE_IPV4)];
                	snprintf_check(remote_mac, sizeof(remote_mac), REMOTE_MAC);
                	snprintf_check(remote_ipv4, sizeof(remote_ipv4), REMOTE_IPV4, tun_id);
                	execute_command(0, "arp -s %s %s", remote_ipv4, remote_mac);
                	char local_ipv6[sizeof(LOCAL_IPV6)];
                	snprintf_check(local_ipv6, sizeof(local_ipv6), LOCAL_IPV6, tun_id);
                	execute_command(1, "ifconfig %s inet6 %s", tun_iface, local_ipv6);
                	char remote_ipv6[sizeof(REMOTE_IPV6)];
                	snprintf_check(remote_ipv6, sizeof(remote_ipv6), REMOTE_IPV6, tun_id);
                	execute_command(0, "ndp -s %s%%%s %s", remote_ipv6, tun_iface, remote_mac);
                }
                
                static long syz_emit_ethernet(volatile long a0, volatile long a1)
                {
                	if (tunfd < 0)
                		return (uintptr_t)-1;
                	size_t length = a0;
                	const char* data = (char*)a1;
                	return write(tunfd, data, length);
                }
                
                static int read_tun(char* data, int size)
                {
                	if (tunfd < 0)
                		return -1;
                	int rv = read(tunfd, data, size);
                	if (rv < 0) {
                		if (errno == EAGAIN)
                			return -1;
                	exit(1);
                	}
                	return rv;
                }
                
                struct tcp_resources {
                	uint32_t seq;
                	uint32_t ack;
                };
                
                static long syz_extract_tcp_res(volatile long a0, volatile long a1, volatile long a2)
                {
                	if (tunfd < 0)
                		return (uintptr_t)-1;
                	char data[1000];
                	int rv = read_tun(&data[0], sizeof(data));
                	if (rv == -1)
                		return (uintptr_t)-1;
                	size_t length = rv;
                	if (length < sizeof(struct ether_header))
                		return (uintptr_t)-1;
                	struct ether_header* ethhdr = (struct ether_header*)&data[0];
                	struct tcphdr* tcphdr = 0;
                	if (ethhdr->ether_type == htons(ETHERTYPE_IP)) {
                		if (length < sizeof(struct ether_header) + sizeof(struct ip))
                			return (uintptr_t)-1;
                		struct ip* iphdr = (struct ip*)&data[sizeof(struct ether_header)];
                		if (iphdr->ip_p != IPPROTO_TCP)
                			return (uintptr_t)-1;
                		if (length < sizeof(struct ether_header) + iphdr->ip_hl * 4 + sizeof(struct tcphdr))
                			return (uintptr_t)-1;
                		tcphdr = (struct tcphdr*)&data[sizeof(struct ether_header) + iphdr->ip_hl * 4];
                	} else {
                		if (length < sizeof(struct ether_header) + sizeof(struct ip6_hdr))
                			return (uintptr_t)-1;
                		struct ip6_hdr* ipv6hdr = (struct ip6_hdr*)&data[sizeof(struct ether_header)];
                		if (ipv6hdr->ip6_nxt != IPPROTO_TCP)
                			return (uintptr_t)-1;
                		if (length < sizeof(struct ether_header) + sizeof(struct ip6_hdr) + sizeof(struct tcphdr))
                			return (uintptr_t)-1;
                		tcphdr = (struct tcphdr*)&data[sizeof(struct ether_header) + sizeof(struct ip6_hdr)];
                	}
                	struct tcp_resources* res = (struct tcp_resources*)a0;
                	res->seq = htonl(ntohl(tcphdr->th_seq) + (uint32_t)a1);
                	res->ack = htonl(ntohl(tcphdr->th_ack) + (uint32_t)a2);
                	return 0;
                }
                
                static void sandbox_common()
                {
                	if (setsid() == -1)
                	exit(1);
                	struct rlimit rlim;
                	rlim.rlim_cur = rlim.rlim_max = 128 << 20;
                	setrlimit(RLIMIT_AS, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 8 << 20;
                	setrlimit(RLIMIT_MEMLOCK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_FSIZE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
                	setrlimit(RLIMIT_STACK, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 0;
                	setrlimit(RLIMIT_CORE, &rlim);
                	rlim.rlim_cur = rlim.rlim_max = 256;
                	setrlimit(RLIMIT_NOFILE, &rlim);
                }
                
                static void loop();
                
                static int do_sandbox_none(void)
                {
                	sandbox_common();
                	initialize_tun(procid);
                	loop();
                	return 0;
                }
                
                static long syz_execute_func(volatile long text)
                {
                	((void (*)(void))(text))();
                	return 0;
                }
                
                struct thread_t {
                	int created, call;
                	event_t ready, done;
                };
                
                static struct thread_t threads[16];
                static void execute_call(int call);
                static int running;
                
                static void* thr(void* arg)
                {
                	struct thread_t* th = (struct thread_t*)arg;
                	for (;;) {
                		event_wait(&th->ready);
                		event_reset(&th->ready);
                		execute_call(th->call);
                		__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
                		event_set(&th->done);
                	}
                	return 0;
                }
                
                static void execute_one(void)
                {
                	int i, call, thread;
                	for (call = 0; call < 13; call++) {
                		for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
                			struct thread_t* th = &threads[thread];
                			if (!th->created) {
                				th->created = 1;
                				event_init(&th->ready);
                				event_init(&th->done);
                				event_set(&th->done);
                				thread_start(thr, th);
                			}
                			if (!event_isset(&th->done))
                				continue;
                			event_reset(&th->done);
                			th->call = call;
                			__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
                			event_set(&th->ready);
                			event_timedwait(&th->done, 45);
                			break;
                		}
                	}
                	for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
                		sleep_ms(1);
                }
                
                static void execute_one(void);
                
                #define WAIT_FLAGS 0
                
                static void loop(void)
                {
                	int iter = 0;
                	for (;; iter++) {
                		char cwdbuf[32];
                		sprintf(cwdbuf, "./%d", iter);
                		if (mkdir(cwdbuf, 0777))
                	exit(1);
                		int pid = fork();
                		if (pid < 0)
                	exit(1);
                		if (pid == 0) {
                			if (chdir(cwdbuf))
                	exit(1);
                			execute_one();
                			exit(0);
                		}
                		int status = 0;
                		uint64_t start = current_time_ms();
                		for (;;) {
                			if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
                				break;
                			sleep_ms(1);
                			if (current_time_ms() - start < 5 * 1000)
                				continue;
                			kill_and_wait(pid, &status);
                			break;
                		}
                		remove_dir(cwdbuf);
                	}
                }
                
                uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
                
                void execute_call(int call)
                {
                		intptr_t res = 0;
                	switch (call) {
                	case 0:
                memcpy((void*)0x10000000, "\xec\x04\xa9\x04\xb9\xd2\xea\x02\xfa\xb2\xdf\x1d\x9d\xe3\x9f\x3f\x5a\xa2\x34\x43\x97\xe1\x86\x20\x4d\x39\xd7\x4d\xa1\x56\xe7\xc6\xcd\x98\x19\x5b\x7b\x83\xc6\x52\xb0\x6b\x62\x22\xbd\xef\x33\x63\x96\x1b\xf4\x7e\x9b\x53\x0f\xbf\x65\xba\xe3\x60\x7b\x60\x94\x1e\x27\x15\xbd\x67\x8f\xce\xbc\x55\x24\xbc\xef\xd3\x18\x4d", 78);
                		syscall(SYS_setsockopt, 0xffffff9c, 0, 0, 0x10000000, 0x4e);
                		break;
                	case 1:
                *(uint8_t*)0x10000180 = 0x10;
                *(uint32_t*)0x10000184 = 0x10000080;
                memcpy((void*)0x10000080, "\xde\x11\xc2\xa7\x74\x19\x1d\x70\xf5\x1e\x7c\x3e\x37\x5c\x28\x14\xac\x72\xc2\xd5\xd0\x40\x4a\x2e\x3d\x5b\xaf\x92\x16\x1f\x3b\x45\x1e\xfe\x9c\x4c\x79\xd7\x66\x06\x68\xf6\x07\x3e\x2f\x76\xc5\xf2\x14\x51\x95\xe8\xc1\xa4\xec\x34\xb6\xf6\x9c\x1b\x58\x27\x68\x20\x7b\x28\xa9\x79\xf0\x5a\xdc\x14\xa3\x35\x7f\xe7\xc4\x93\xfc\x81\xa9\x17\x75\x24\x63\x1b\xb2\x09\xbe\x63\x7f\x86\x95\x74\x7f\xa7\xcf\x1c\x68\xac\x69\x1f\x16\x9c\x1b\x8f\xb6\x7d\x7a\x37\x76\xdd\xfc\x62\x0f\xfb\xe6\x83\x1f\x74\xd2\xf2\xd0\x89\xa4\xff\xec\xf5\x10\xa9\x97\x02\x25\x8c\x58\xea\x9e\x87\x1d\x4f\x4a\xb9\xa3\x47\xaa\xbd\xbb\x03\x58\x5b\x37\xb5\xc7\x94\x36\xc0\xc1\x16\x0a\x58\x76\xb6\x1b\xbf\x0c\x81\x4b\xb4\x9a\x27\xa3\x60\x82\xdf\x13\xcb\x2f\x9d\xe2\xf9\x42\xb6\xac\x7e\x15\x88\x80\xcf\xc0\x3c\xfd\xcc\xca\x9f\xc0\xf2\x34\x7e\xb5\x43\xa3\x43\xb4\xc9\x27\x07\xfe\x73\x6a\x86\xa3\x5d\x58\xe2\x6f\x6f\xd2\xe9\xec\x8f\x82", 221);
                *(uint32_t*)0x10000188 = 7;
                *(uint32_t*)0x1000018c = 0x5a764000;
                *(uint32_t*)0x10000190 = 6;
                		syscall(SYS_ioctl, -1, 0xc0284459, 0x10000180);
                		break;
                	case 2:
                *(uint8_t*)0x10000200 = 0x1c;
                *(uint8_t*)0x10000201 = 0x1c;
                *(uint16_t*)0x10000202 = htobe16(0x4e23);
                *(uint32_t*)0x10000204 = 6;
                *(uint64_t*)0x10000208 = htobe64(0);
                *(uint64_t*)0x10000210 = htobe64(1);
                *(uint32_t*)0x10000218 = 0x2d99;
                		syscall(SYS_recvfrom, 0xffffff9c, 0x100001c0, 0x17, 2, 0x10000200, 0x1c);
                		break;
                	case 3:
                memcpy((void*)0x10000240, "./file0\000", 8);
                memcpy((void*)0x10000280, "\000", 1);
                		res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                		if (res != -1)
                				r[0] = res;
                		break;
                	case 4:
                *(uint32_t*)0x100015c0 = 0x10000540;
                *(uint32_t*)0x10000540 = 0x100002c0;
                memcpy((void*)0x100002c0, "\xef\xac\xad\xe5\x8a\xb0\x19\x23\x51\xa1\x02\xad\xa3\x2a\xd1\xf4\x1e\x42\x9e\xdf\x6c\x4a\x51\x3a\xc6\xd6\x69\xca\xdb\x22\x2e\xb6\x82\x97\xab\x8f\x9f\x7b\x32\x34\xd0\xc6\xcf\xa2\x80\xad\x14\xdc\x1c\x4c\x34\x17\x51\x19\x44\x6d\x79\xa0\x30\xd4\x8b\x57\x30\x4e\xb9\x0b\x42\x8c\x20\x23\x82\xd8\x6c\xd7\x1e\x9c\x1e\xcc\x8d\x3e\x2d\x76\x4a\xae\x37\x14\xcb\x59\x1e\xb0\x27\xe4\x69\x43\xe2\x3e\xb7\x65\x68\x75\x86\x7e\x60\x3c\xf1\x38\x92\xa7\x4c\x42\xbb\x18\x44\xc2\x7f\x7f\x45\x4f\x96\x61\xf1\xdb\xb3\x50\x04\xad\xa4\xd6\xd7\x5b\x1d\xf3\x42\xe9\x67\x49\x3d\x20\x7d\x6b\x8b\x4e\xdc\xbf\x9d\x1e\x37\x84\x45\x57\x36\x84\xed\x13\x9b\x67\x1a\xbf\x65\x76\xed\xf8\xd7\x34\x2c\xd8\x64\x9d\x37\x69\x70\xac\xbd\xe2\x24\xa7\xb0\xb6\xa9\x75\xa8\xba\x0a\x76\x8e\xd6\xab\xe1\x6c\x1b\x69\x4f\x65\xdd\x42\x31\xf4\x8c\x28\x84", 200);
                *(uint32_t*)0x10000544 = 0xc8;
                *(uint32_t*)0x10000548 = 0x100003c0;
                memcpy((void*)0x100003c0, "\xa6\xe4\xfe\x18\x6c\x76\x0a\xc2\xeb\xbc\xf9\xef\xda\x5e\x22\xe2\xdf\x6f\x15\x3f\xcc\xda\x1c\x16\x97\x60\x37\xd0\x3e\xe0\x04\xc3\xfb\xba\x5d\x35\xb6\xc0\x83\x13\x0f\xc7\x05\xf9\x58\x89\xba\x6a\xdb\xe5\xe3\xa7\xa5\xe7\x01\x36\xa0\xca\x08\x5b\x7e\x50\x4d\x0d\xf5\x5f\xe1\x84\xa9\xbd\x7a\x82", 72);
                *(uint32_t*)0x1000054c = 0x48;
                *(uint32_t*)0x10000550 = 0x10000440;
                memcpy((void*)0x10000440, "\xc7\xe0\x00\x30\xb3\xc4\x54\x17\x43\xee\x65\x13", 12);
                *(uint32_t*)0x10000554 = 0xc;
                *(uint32_t*)0x10000558 = 0x10000480;
                memcpy((void*)0x10000480, "\xa4\xa6\x7a\x4e\x72\x49\x2b\x9f\xab\x63\x79\xe4\xc0\xf3\x5b\x22\xb6\x9b\x6e\x7a\xef\xc5\x6b\xee\xfa\x85\x7a\xe2\x85\x43", 30);
                *(uint32_t*)0x1000055c = 0x1e;
                *(uint32_t*)0x10000560 = 0x100004c0;
                memcpy((void*)0x100004c0, "\x8f\x09\x5f\x8d\xf1\xc6\xbc\x4d\xfc\x1d\x82\x6f\x02\xdf\xa7\x79\x4b\xeb\xf9\xe7\xff\xc7\x16\x0f\x27\x6a\x53\xd1\xab\xc9\x96\xfc\xa8\xc8\xdb\xc7\xc7\x9c\x09\xcd\x5f\x95\x47\x75\xc9\xe8\xfc\x1c\xf2\xe0\xe3\xc0\x54\xfb\x54\xb6\x62\xd1\xb4\x5f\x52\x35\xfd\xbf\x86\x0c\x3f\xed\x3d\xc3\x4c\xeb\x30\xc4\x4b\xaa\x4d\xed\x7d\xe7\xe9\x53\x3f\x4d\xca\x14\x6d\xb0\xdb\x35\xa9\x3b\xa6\x54\xd4\x90\x11\xd9\xcb\x98\xd1\x57\x6b\x73\x1b\x9c\x2b\xb5\x8c\x0d\xf4\xed\xee\x6e\xf5\xae\x1f\x8b\x6b\xc9\x64\x6f\x5b\x4a\xde\x4d\xd5\x2a", 128);
                *(uint32_t*)0x10000564 = 0x80;
                *(uint32_t*)0x100015c4 = 5;
                *(uint32_t*)0x100015c8 = 0x10001580;
                *(uint32_t*)0x10001580 = 0x10000580;
                memcpy((void*)0x10000580, 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d\x78\x21\x78\x31\x91\xe0\x3b\x56\x82\xae\x7c\x0d\xad\xd4\xa9\x27\x24\xaa\xfc\xe0\x24\xae\x0a\xcc\x8e\x39\xcd\x3e\xaf\x4e\xde\x02\x49\x07\xe5\x09\x77\x22\x8d\xf4\xd3\xa6\xa4\x28\x88\x6f\xb2\x4f\x9a\xa1\x53\x66\xbc\xae\x6e\xbb\x17\x51\x40\x2b\x9f\x34\xa3\x85\x40\xc0\x92\x93\x04\x7f\xe9\x43\x73\xc1\x7a\x9c\xcc\xff\x1a\x1d\xe3\x22\xef\xc3\xfe\x33\x48\x01\xaa\x76\x44\x4d\xd0\xd4\xc0\x17\xfe\xb9\xd4\x53\xeb\x35\xf2\x1e\xfe\x33\x2e\xd9\xae\x75\x57\x1c\xa5\x77\x8e\xb4\xb6\x9d\x94\xf7\x69\xdb\xf0\x8c\xaf\xa0\x7a\x7f\x42\xf1\x2f\x8f\x2a\x9e\x3e\xb6\x97\x6e\x01\x62\xc3\xf2\x34\x51\xd9\x74\xc8\x7f\x60\x63\xbd\x31\xdb\x13\x85\x81\x1b\x55\x4c\x85\x50\xba\x51\x30\xf8\x8d\x79\x7a\x8b\xab\x3e\x01\xb2\x1e\x5f\xeb\xd2\xb0\xf6\x6e\x8f\x58\x42\xc1\x04\x10\x74\x28\x42\x3a\x8c\x8d\x39\x4c\x5e\x19\xea\x71\x75\x87\xa9\x2f\xe0\x70\xe5\xb4\x9e\xc4\xaf\x4b\xc6\x32\xe2\xf3\xe8\x0f\xa6\x51\x16\xf3\x8e\x12\xd8\xa2\x18\xf4\xf2\x36\x10\x5e\x39\x08\x02\xb3\xf9\x92\x16\x50\xba\x41\x81\x77\xf8\x33\x26\x18\x61\xab\xee\xbf\xae\xc3\x19\x89\x49\x2f\x7f\x02\xd1\xb0\x62\x16\x9d\x3b\xee\x9a\xa3\x99\xd3\xdf\xa9\xf9\x8d\x48\x29\xe9\x8f\xe7\x67\x23\x6f\x5d\xd9\x81\x09\x43\x9d\x31\x99\x9c\x03\x51\x9e\xa3\x8d\xe2\x5b\x3f\xe3\x8b\x42\x0f\xbe\x45\x52\xe9\xad\xed\xb3\x07\xfd\xff\xc9\x8e\xa4\x58\x6d\x60\xee\x31\x33\x28\xc5\xb6\xc3\xff\x50\x4e\xbe\xd2\x8f\x56\x69\x80\x16\xdd\x79\x6b\x9b\x9e\x85\x0d\x79\x18\xd8\xb8", 4096);
                *(uint32_t*)0x10001584 = 0x1000;
                *(uint32_t*)0x100015cc = 1;
                		syscall(SYS_sendfile, (intptr_t)r[0], 0xffffff9c, 8, 0x800ull, 0x100015c0, 0x10001600, 9);
                		break;
                	case 5:
                memcpy((void*)0x10001640, "\x6c\x81\x1b\xa5\x2c\x13\x9b\x40\xdc\x56\x80\xcb\x02\x75\xfd\xd4\x40\x46\x8e\x4d\xae\x07\xc7\x45\xba\x75\x8c\xb2\x66\x74\x2f\x46\x8f\xc4\x2d\xa0\x66\x9f\x60\x61\xcb\x2c\x9f\x92\x1e\x95\x34\x51\xb3\x13\x5e\x01\x74\xfe\x8e\xb1\xae\xbb\x2c\x3e\xb8\xa7\xfb\x3f\xc8\xde\xa1\x8e\x65\x2d\x01\xe7\x18\x4c\xa6\x5d\xce\x04\xf4\x67\x9a\xfe\xd2\x76\x6b\x06\x73\x49\xde\x7a\x5e\xf6\x0b\x58\x69\x92\x91\x9a\x20\x38\x2c\x0a\x1f\x20\xaf\x0c\x9c\x7f\xac\x61\xcf\x18\x38\x3e\x36\xfe\x56\x50\x2f\x5f\x26\xb8", 122);
                		syscall(SYS_ioctl, -1, 0xc0104453, 0x10001640);
                		break;
                	case 6:
                		res = syscall(SYS_freebsd10_pipe, 0x100016c0);
                		if (res != -1) {
                r[1] = *(uint32_t*)0x100016c0;
                r[2] = *(uint32_t*)0x100016c4;
                		}
                		break;
                	case 7:
                *(uint8_t*)0x10001700 = 0x10;
                *(uint8_t*)0x10001701 = 2;
                *(uint16_t*)0x10001702 = htobe16(0x4e23);
                *(uint32_t*)0x10001704 = htobe32(7);
                *(uint8_t*)0x10001708 = 0;
                *(uint8_t*)0x10001709 = 0;
                *(uint8_t*)0x1000170a = 0;
                *(uint8_t*)0x1000170b = 0;
                *(uint8_t*)0x1000170c = 0;
                *(uint8_t*)0x1000170d = 0;
                *(uint8_t*)0x1000170e = 0;
                *(uint8_t*)0x1000170f = 0;
                *(uint32_t*)0x10001740 = 0x10;
                		syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x8002, 0x10001700, 0x10001740);
                		break;
                	case 8:
                *(uint32_t*)0x100017c0 = 4;
                		syscall(SYS_getsockopt, -1, 0x84, 0x20, 0x10001780, 0x100017c0);
                		break;
                	case 9:
                *(uint32_t*)0x10001800 = 8;
                *(uint16_t*)0x10001804 = 0x1000;
                *(uint16_t*)0x10001806 = 0;
                *(uint16_t*)0x10001808 = 0x8000;
                *(uint16_t*)0x1000180a = 0x200;
                *(uint16_t*)0x1000180c = 0x4000;
                *(uint16_t*)0x1000180e = 0;
                *(uint16_t*)0x10001810 = 1;
                *(uint16_t*)0x10001812 = 0;
                *(uint32_t*)0x10001840 = 0x14;
                		syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x14, 0x10001800, 0x10001840);
                		break;
                	case 10:
                memcpy((void*)0x10000000, "\xc9\x0c\x8a\x7c\x33\x7f", 6);
                *(uint8_t*)0x10000006 = 0xaa;
                *(uint8_t*)0x10000007 = 0xaa;
                *(uint8_t*)0x10000008 = 0xaa;
                *(uint8_t*)0x10000009 = 0xaa;
                *(uint8_t*)0x1000000a = 0xaa;
                *(uint8_t*)0x1000000b = 0xaa;
                *(uint16_t*)0x1000000c = htobe16(0x8100);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 0, 3);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 3, 1);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 4, 12);
                *(uint16_t*)0x10000010 = htobe16(0x800);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 0x1c, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 4, 4, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 0, 2);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 2, 6);
                *(uint16_t*)0x10000014 = htobe16(0x81);
                *(uint16_t*)0x10000016 = htobe16(0x65);
                *(uint16_t*)0x10000018 = htobe16(5);
                *(uint8_t*)0x1000001a = 1;
                *(uint8_t*)0x1000001b = 0x46;
                *(uint16_t*)0x1000001c = htobe16(0);
                *(uint32_t*)0x1000001e = htobe32(-1);
                *(uint8_t*)0x10000022 = 0xac;
                *(uint8_t*)0x10000023 = 0x14;
                *(uint8_t*)0x10000024 = 0;
                *(uint8_t*)0x10000025 = 0xbb;
                *(uint8_t*)0x10000026 = 0;
                *(uint8_t*)0x10000027 = 0x44;
                *(uint8_t*)0x10000028 = 0xc;
                *(uint8_t*)0x10000029 = 5;
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 0, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 3, 4, 4);
                *(uint32_t*)0x1000002b = htobe32(9);
                *(uint32_t*)0x1000002f = htobe32(4);
                *(uint8_t*)0x10000033 = 0x83;
                *(uint8_t*)0x10000034 = 0xb;
                *(uint8_t*)0x10000035 = 6;
                *(uint32_t*)0x10000036 = htobe32(0xe0000001);
                *(uint32_t*)0x1000003a = htobe32(-1);
                *(uint8_t*)0x1000003e = 0;
                *(uint8_t*)0x1000003f = 4;
                memcpy((void*)0x10000040, "\xa4\xd4", 2);
                *(uint8_t*)0x10000042 = 0x89;
                *(uint8_t*)0x10000043 = 0x13;
                *(uint8_t*)0x10000044 = 4;
                *(uint8_t*)0x10000045 = 0xac;
                *(uint8_t*)0x10000046 = 0x14;
                *(uint8_t*)0x10000047 = 0;
                *(uint8_t*)0x10000048 = 0xbb;
                *(uint32_t*)0x10000049 = htobe32(-1);
                *(uint8_t*)0x1000004d = 0xac;
                *(uint8_t*)0x1000004e = 0x14;
                *(uint8_t*)0x1000004f = 0;
                *(uint8_t*)0x10000050 = 0xbb;
                *(uint32_t*)0x10000051 = htobe32(0);
                *(uint8_t*)0x10000055 = 0x94;
                *(uint8_t*)0x10000056 = 6;
                *(uint32_t*)0x10000057 = htobe32(9);
                *(uint8_t*)0x1000005b = 0x94;
                *(uint8_t*)0x1000005c = 6;
                *(uint32_t*)0x1000005d = htobe32(0x80000001);
                *(uint8_t*)0x10000061 = 1;
                *(uint8_t*)0x10000062 = 0x83;
                *(uint8_t*)0x10000063 = 0x1f;
                *(uint8_t*)0x10000064 = 2;
                *(uint32_t*)0x10000065 = htobe32(0xe0000002);
                *(uint32_t*)0x10000069 = htobe32(0xe0000001);
                *(uint32_t*)0x1000006d = htobe32(0x7f000001);
                *(uint32_t*)0x10000071 = htobe32(0);
                *(uint32_t*)0x10000075 = htobe32(0x7f000001);
                *(uint32_t*)0x10000079 = htobe32(0x7f000001);
                *(uint32_t*)0x1000007d = htobe32(0xe0000001);
                memcpy((void*)0x10000082, "\x8d\x86\x2d\x09\x9b\x6b\xb2\xba\x6a\xea\xa6\xab\xd3\xe9\xd5\x82\xc9", 17);
                		struct csum_inet csum_1;
                		csum_inet_init(&csum_1);
                csum_inet_update(&csum_1, (const uint8_t*)0x10000012, 112);
                *(uint16_t*)0x1000001c = csum_inet_digest(&csum_1);
                syz_emit_ethernet(0x93, 0x10000000);
                		break;
                	case 11:
                memcpy((void*)0x100000c0, "\xc4\xe1\xf5\xf3\x7b\x05\xc4\xc2\xf5\x47\x52\x5a\x80\x8f\x4e\x00\x00\x00\x00\x66\x0f\x38\x1d\xbc\x60\x07\x00\x00\x00\xc4\xe2\xad\x91\x74\xae\x7e\x81\xfe\x00\x00\x00\x00\x8f\xe9\xa0\x99\xd8\xe4\xff\xc4\xc1\x93\x5c\x17\xc4\xc3\xe1\x41\xae\x2f\x10\x9d\xc2\xd8", 64);
                syz_execute_func(0x100000c0);
                		break;
                	case 12:
                syz_extract_tcp_res(0x10000100, 5, 0x7ff);
                		break;
                	}
                
                }
                int main(void)
                {
                		syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
                			use_temporary_dir();
                			do_sandbox_none();
                	return 0;
                }
                
                <stdin>:532:17: error: use of undeclared identifier 'SYS_shm_open2'
                                res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                                              ^
                1 error generated.
                
                compiler invocation: clang [-o /tmp/syz-executor251487735 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow]
        --- FAIL: TestGenerate/freebsd/386/7 (1.79s)
            csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox: Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false}
                program:
                setsockopt$inet_opts(0xffffffffffffff9c, 0x0, 0x0, &(0x7f0000000000)="ec04a904b9d2ea02fab2df1d9de39f3f5aa2344397e186204d39d74da156e7c6cd98195b7b83c652b06b6222bdef3363961bf47e9b530fbf65bae3607b60941e2715bd678fcebc5524bcefd3184d", 0x4e)
                ioctl$DIOCSETIFFLAG(0xffffffffffffffff, 0xc0284459, &(0x7f0000000180)={0x10, &(0x7f0000000080)="de11c2a774191d70f51e7c3e375c2814ac72c2d5d0404a2e3d5baf92161f3b451efe9c4c79d7660668f6073e2f76c5f2145195e8c1a4ec34b6f69c1b582768207b28a979f05adc14a3357fe7c493fc81a9177524631bb209be637f8695747fa7cf1c68ac691f169c1b8fb67d7a3776ddfc620ffbe6831f74d2f2d089a4ffecf510a99702258c58ea9e871d4f4ab9a347aabdbb03585b37b5c79436c0c1160a5876b61bbf0c814bb49a27a36082df13cb2f9de2f942b6ac7e158880cfc03cfdccca9fc0f2347eb543a343b4c92707fe736a86a35d58e26f6fd2e9ec8f82", 0x7, 0x5a764000, 0x6})
                recvfrom$inet6(0xffffffffffffff9c, &(0x7f00000001c0)=""/23, 0x17, 0x2, &(0x7f0000000200)={0x1c, 0x1c, 0x3, 0x6, @loopback, 0x2d99}, 0x1c)
                r0 = shm_open2(&(0x7f0000000240)='./file0\x00', 0x800, 0x0, 0x7, &(0x7f0000000280)='\x00')
                sendfile(r0, 0xffffffffffffff9c, 0x8, 0x800, &(0x7f00000015c0)={&(0x7f0000000540)=[{&(0x7f00000002c0)="efacade58ab0192351a102ada32ad1f41e429edf6c4a513ac6d669cadb222eb68297ab8f9f7b3234d0c6cfa280ad14dc1c4c34175119446d79a030d48b57304eb90b428c202382d86cd71e9c1ecc8d3e2d764aae3714cb591eb027e46943e23eb7656875867e603cf13892a74c42bb1844c27f7f454f9661f1dbb35004ada4d6d75b1df342e967493d207d6b8b4edcbf9d1e378445573684ed139b671abf6576edf8d7342cd8649d376970acbde224a7b0b6a975a8ba0a768ed6abe16c1b694f65dd4231f48c2884", 0xc8}, {&(0x7f00000003c0)="a6e4fe186c760ac2ebbcf9efda5e22e2df6f153fccda1c16976037d03ee004c3fbba5d35b6c083130fc705f95889ba6adbe5e3a7a5e70136a0ca085b7e504d0df55fe184a9bd7a82", 0x48}, {&(0x7f0000000440)="c7e00030b3c4541743ee6513", 0xc}, {&(0x7f0000000480)="a4a67a4e72492b9fab6379e4c0f35b22b69b6e7aefc56beefa857ae28543", 0x1e}, {&(0x7f00000004c0)="8f095f8df1c6bc4dfc1d826f02dfa7794bebf9e7ffc7160f276a53d1abc996fca8c8dbc7c79c09cd5f954775c9e8fc1cf2e0e3c054fb54b662d1b45f5235fdbf860c3fed3dc34ceb30c44baa4ded7de7e9533f4dca146db0db35a93ba654d49011d9cb98d1576b731b9c2bb58c0df4edee6ef5ae1f8b6bc9646f5b4ade4dd52a", 0x80}], 0x5, &(0x7f0000001580)=[{&(0x7f0000000580)="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", 0x1000}], 0x1}, &(0x7f0000001600), 0x9)
                ioctl$DIOCXROLLBACK(0xffffffffffffffff, 0xc0104453, &(0x7f0000001640)="6c811ba52c139b40dc5680cb0275fdd440468e4dae07c745ba758cb266742f468fc42da0669f6061cb2c9f921e953451b3135e0174fe8eb1aebb2c3eb8a7fb3fc8dea18e652d01e7184ca65dce04f4679afed2766b067349de7a5ef60b586992919a20382c0a1f20af0c9c7fac61cf18383e36fe56502f5f26b8")
                freebsd10_pipe(&(0x7f00000016c0)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
                setsockopt$inet6_sctp_SCTP_BINDX_REM_ADDR(r2, 0x84, 0x8002, &(0x7f0000001700)=@in={0x10, 0x2, 0x3, @rand_addr=0x7}, &(0x7f0000001740)=0x10)
                getsockopt$inet6_sctp_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000001780), &(0x7f00000017c0)=0x4)
                getsockopt$inet6_sctp_SCTP_HMAC_IDENT(r1, 0x84, 0x14, &(0x7f0000001800)={0x8, [0x1000, 0x0, 0x8000, 0x200, 0x4000, 0x0, 0x1, 0x0]}, &(0x7f0000001840)=0x14)
                syz_emit_ethernet(0x93, &(0x7f0000000000)={@random="c90c8a7c337f", @local, [{}], {@ipv4={0x800, {{0x1c, 0x4, 0x0, 0x0, 0x81, 0x65, 0x5, 0x1, 0x46, 0x0, @broadcast, @remote={0xac, 0x14, 0x0}, {[@end, @timestamp={0x44, 0xc, 0x5, 0x0, 0x3, [{[], 0x9}, {[], 0x4}]}, @lsrr={0x83, 0xb, 0x6, [@multicast1, @broadcast]}, @generic={0x0, 0x4, "a4d4"}, @ssrr={0x89, 0x13, 0x4, [@remote={0xac, 0x14, 0x0}, @broadcast, @remote={0xac, 0x14, 0x0}, @empty]}, @ra={0x94, 0x6, 0x9}, @ra={0x94, 0x6, 0x80000001}, @noop, @lsrr={0x83, 0x1f, 0x2, [@multicast2, @multicast1, @loopback, @empty, @loopback, @loopback, @multicast1]}]}}, @generic="8d862d099b6bb2ba6aeaa6abd3e9d582c9"}}}})
                syz_execute_func(&(0x7f00000000c0)="c4e1f5f37b05c4c2f547525a808f4e00000000660f381dbc6007000000c4e2ad9174ae7e81fe000000008fe9a099d8e4ffc4c1935c17c4c3e141ae2f109dc2d8")
                syz_extract_tcp_res(&(0x7f0000000100), 0x5, 0x7ff)
                
            csource_test.go:124: failed to build program:
                // autogenerated by syzkaller (https://github.com/google/syzkaller)
                
                #define _GNU_SOURCE 
                
                #include <sys/types.h>
                
                #include <dirent.h>
                #include <errno.h>
                #include <pthread.h>
                #include <pwd.h>
                #include <signal.h>
                #include <stdarg.h>
                #include <stdbool.h>
                #include <stdint.h>
                #include <stdio.h>
                #include <stdlib.h>
                #include <string.h>
                #include <sys/endian.h>
                #include <sys/stat.h>
                #include <sys/syscall.h>
                #include <sys/wait.h>
                #include <time.h>
                #include <unistd.h>
                
                static void kill_and_wait(int pid, int* status)
                {
                	kill(pid, SIGKILL);
                	while (waitpid(-1, status, 0) != pid) {
                	}
                }
                
                static void sleep_ms(uint64_t ms)
                {
                	usleep(ms * 1000);
                }
                
                static uint64_t current_time_ms(void)
                {
                	struct timespec ts;
                	if (clock_gettime(CLOCK_MONOTONIC, &ts))
                	exit(1);
                	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
                }
                
                static void use_temporary_dir(void)
                {
                	char tmpdir_template[] = "./syzkaller.XXXXXX";
                	char* tmpdir = mkdtemp(tmpdir_template);
                	if (!tmpdir)
                	exit(1);
                	if (chmod(tmpdir, 0777))
                	exit(1);
                	if (chdir(tmpdir))
                	exit(1);
                }
                
                static void __attribute__((noinline)) remove_dir(const char* dir)
                {
                	DIR* dp = opendir(dir);
                	if (dp == NULL) {
                		if (errno == EACCES) {
                			if (rmdir(dir))
                	exit(1);
                			return;
                		}
                	exit(1);
                	}
                	struct dirent* ep = 0;
                	while ((ep = readdir(dp))) {
                		if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
                			continue;
                		char filename[FILENAME_MAX];
                		snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
                		struct stat st;
                		if (lstat(filename, &st))
                	exit(1);
                		if (S_ISDIR(st.st_mode)) {
                			remove_dir(filename);
                			continue;
                		}
                		if (unlink(filename))
                	exit(1);
                	}
                	closedir(dp);
                	if (rmdir(dir))
                	exit(1);
                }
                
                static void thread_start(void* (*fn)(void*), void* arg)
                {
                	pthread_t th;
                	pthread_attr_t attr;
                	pthread_attr_init(&attr);
                	pthread_attr_setstacksize(&attr, 128 << 10);
                	int i = 0;
                	for (; i < 100; i++) {
                		if (pthread_create(&th, &attr, fn, arg) == 0) {
                			pthread_attr_destroy(&attr);
                			return;
                		}
                		if (errno == EAGAIN) {
                			usleep(50);
                			continue;
                		}
                		break;
                	}
                	exit(1);
                }
                
                typedef struct {
                	pthread_mutex_t mu;
                	pthread_cond_t cv;
                	int state;
                } event_t;
                
                static void event_init(event_t* ev)
                {
                	if (pthread_mutex_init(&ev->mu, 0))
                	exit(1);
                	if (pthread_cond_init(&ev->cv, 0))
                	exit(1);
                	ev->state = 0;
                }
                
                static void event_reset(event_t* ev)
                {
                	ev->state = 0;
                }
                
                static void event_set(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	if (ev->state)
                	exit(1);
                	ev->state = 1;
                	pthread_mutex_unlock(&ev->mu);
                	pthread_cond_broadcast(&ev->cv);
                }
                
                static void event_wait(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	while (!ev->state)
                		pthread_cond_wait(&ev->cv, &ev->mu);
                	pthread_mutex_unlock(&ev->mu);
                }
                
                static int event_isset(event_t* ev)
                {
                	pthread_mutex_lock(&ev->mu);
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                static int event_timedwait(event_t* ev, uint64_t timeout)
                {
                	uint64_t start = current_time_ms();
                	uint64_t now = start;
                	pthread_mutex_lock(&ev->mu);
                	for (;;) {
                		if (ev->state)
                			break;
                		uint64_t remain = timeout - (now - start);
                		struct timespec ts;
                		ts.tv_sec = remain / 1000;
                		ts.tv_nsec = (remain % 1000) * 1000 * 1000;
                		pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
                		now = current_time_ms();
                		if (now - start > timeout)
                			break;
                	}
                	int res = ev->state;
                	pthread_mutex_unlock(&ev->mu);
                	return res;
                }
                
                #define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
                #define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
                
                struct csum_inet {
                	uint32_t acc;
                };
                
                static void csum_inet_init(struct csum_inet* csum)
                {
                	csum->acc = 0;
                }
                
                static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
                {
                	if (length == 0)
                		return;
                	size_t i = 0;
                	for (; i < length - 1; i += 2)
                		csum->acc += *(uint16_t*)&data[i];
                	if (length & 1)
                		csum->acc += le16toh((uint16_t)data[length - 1]);
                	while (csum->acc > 0xffff)
                		csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
                }
                
                static uint16_t csum_inet_digest(struct csum_inet* csum)
                {
                	return ~csum->acc;
                }
                
                static long syz_execute_func(volatile long text)
                {
                	((void (*)(void))(text))();
                	return 0;
                }
                
                struct thread_t {
                	int created, call;
                	event_t ready, done;
                };
                
                static struct thread_t threads[16];
                static void execute_call(int call);
                static int running;
                
                static void* thr(void* arg)
                {
                	struct thread_t* th = (struct thread_t*)arg;
                	for (;;) {
                		event_wait(&th->ready);
                		event_reset(&th->ready);
                		execute_call(th->call);
                		__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
                		event_set(&th->done);
                	}
                	return 0;
                }
                
                static void execute_one(void)
                {
                	int i, call, thread;
                	for (call = 0; call < 13; call++) {
                		for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
                			struct thread_t* th = &threads[thread];
                			if (!th->created) {
                				th->created = 1;
                				event_init(&th->ready);
                				event_init(&th->done);
                				event_set(&th->done);
                				thread_start(thr, th);
                			}
                			if (!event_isset(&th->done))
                				continue;
                			event_reset(&th->done);
                			th->call = call;
                			__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
                			event_set(&th->ready);
                			event_timedwait(&th->done, 45);
                			break;
                		}
                	}
                	for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
                		sleep_ms(1);
                }
                
                static void execute_one(void);
                
                #define WAIT_FLAGS 0
                
                static void loop(void)
                {
                	int iter = 0;
                	for (;; iter++) {
                		char cwdbuf[32];
                		sprintf(cwdbuf, "./%d", iter);
                		if (mkdir(cwdbuf, 0777))
                	exit(1);
                		int pid = fork();
                		if (pid < 0)
                	exit(1);
                		if (pid == 0) {
                			if (chdir(cwdbuf))
                	exit(1);
                			execute_one();
                			exit(0);
                		}
                		int status = 0;
                		uint64_t start = current_time_ms();
                		for (;;) {
                			if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
                				break;
                			sleep_ms(1);
                			if (current_time_ms() - start < 5 * 1000)
                				continue;
                			kill_and_wait(pid, &status);
                			break;
                		}
                		remove_dir(cwdbuf);
                	}
                }
                
                uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
                
                void execute_call(int call)
                {
                		intptr_t res = 0;
                	switch (call) {
                	case 0:
                memcpy((void*)0x10000000, "\xec\x04\xa9\x04\xb9\xd2\xea\x02\xfa\xb2\xdf\x1d\x9d\xe3\x9f\x3f\x5a\xa2\x34\x43\x97\xe1\x86\x20\x4d\x39\xd7\x4d\xa1\x56\xe7\xc6\xcd\x98\x19\x5b\x7b\x83\xc6\x52\xb0\x6b\x62\x22\xbd\xef\x33\x63\x96\x1b\xf4\x7e\x9b\x53\x0f\xbf\x65\xba\xe3\x60\x7b\x60\x94\x1e\x27\x15\xbd\x67\x8f\xce\xbc\x55\x24\xbc\xef\xd3\x18\x4d", 78);
                		syscall(SYS_setsockopt, 0xffffff9c, 0, 0, 0x10000000, 0x4e);
                		break;
                	case 1:
                *(uint8_t*)0x10000180 = 0x10;
                *(uint32_t*)0x10000184 = 0x10000080;
                memcpy((void*)0x10000080, "\xde\x11\xc2\xa7\x74\x19\x1d\x70\xf5\x1e\x7c\x3e\x37\x5c\x28\x14\xac\x72\xc2\xd5\xd0\x40\x4a\x2e\x3d\x5b\xaf\x92\x16\x1f\x3b\x45\x1e\xfe\x9c\x4c\x79\xd7\x66\x06\x68\xf6\x07\x3e\x2f\x76\xc5\xf2\x14\x51\x95\xe8\xc1\xa4\xec\x34\xb6\xf6\x9c\x1b\x58\x27\x68\x20\x7b\x28\xa9\x79\xf0\x5a\xdc\x14\xa3\x35\x7f\xe7\xc4\x93\xfc\x81\xa9\x17\x75\x24\x63\x1b\xb2\x09\xbe\x63\x7f\x86\x95\x74\x7f\xa7\xcf\x1c\x68\xac\x69\x1f\x16\x9c\x1b\x8f\xb6\x7d\x7a\x37\x76\xdd\xfc\x62\x0f\xfb\xe6\x83\x1f\x74\xd2\xf2\xd0\x89\xa4\xff\xec\xf5\x10\xa9\x97\x02\x25\x8c\x58\xea\x9e\x87\x1d\x4f\x4a\xb9\xa3\x47\xaa\xbd\xbb\x03\x58\x5b\x37\xb5\xc7\x94\x36\xc0\xc1\x16\x0a\x58\x76\xb6\x1b\xbf\x0c\x81\x4b\xb4\x9a\x27\xa3\x60\x82\xdf\x13\xcb\x2f\x9d\xe2\xf9\x42\xb6\xac\x7e\x15\x88\x80\xcf\xc0\x3c\xfd\xcc\xca\x9f\xc0\xf2\x34\x7e\xb5\x43\xa3\x43\xb4\xc9\x27\x07\xfe\x73\x6a\x86\xa3\x5d\x58\xe2\x6f\x6f\xd2\xe9\xec\x8f\x82", 221);
                *(uint32_t*)0x10000188 = 7;
                *(uint32_t*)0x1000018c = 0x5a764000;
                *(uint32_t*)0x10000190 = 6;
                		syscall(SYS_ioctl, -1, 0xc0284459, 0x10000180);
                		break;
                	case 2:
                *(uint8_t*)0x10000200 = 0x1c;
                *(uint8_t*)0x10000201 = 0x1c;
                *(uint16_t*)0x10000202 = htobe16(0x4e23);
                *(uint32_t*)0x10000204 = 6;
                *(uint64_t*)0x10000208 = htobe64(0);
                *(uint64_t*)0x10000210 = htobe64(1);
                *(uint32_t*)0x10000218 = 0x2d99;
                		syscall(SYS_recvfrom, 0xffffff9c, 0x100001c0, 0x17, 2, 0x10000200, 0x1c);
                		break;
                	case 3:
                memcpy((void*)0x10000240, "./file0\000", 8);
                memcpy((void*)0x10000280, "\000", 1);
                		res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                		if (res != -1)
                				r[0] = res;
                		break;
                	case 4:
                *(uint32_t*)0x100015c0 = 0x10000540;
                *(uint32_t*)0x10000540 = 0x100002c0;
                memcpy((void*)0x100002c0, "\xef\xac\xad\xe5\x8a\xb0\x19\x23\x51\xa1\x02\xad\xa3\x2a\xd1\xf4\x1e\x42\x9e\xdf\x6c\x4a\x51\x3a\xc6\xd6\x69\xca\xdb\x22\x2e\xb6\x82\x97\xab\x8f\x9f\x7b\x32\x34\xd0\xc6\xcf\xa2\x80\xad\x14\xdc\x1c\x4c\x34\x17\x51\x19\x44\x6d\x79\xa0\x30\xd4\x8b\x57\x30\x4e\xb9\x0b\x42\x8c\x20\x23\x82\xd8\x6c\xd7\x1e\x9c\x1e\xcc\x8d\x3e\x2d\x76\x4a\xae\x37\x14\xcb\x59\x1e\xb0\x27\xe4\x69\x43\xe2\x3e\xb7\x65\x68\x75\x86\x7e\x60\x3c\xf1\x38\x92\xa7\x4c\x42\xbb\x18\x44\xc2\x7f\x7f\x45\x4f\x96\x61\xf1\xdb\xb3\x50\x04\xad\xa4\xd6\xd7\x5b\x1d\xf3\x42\xe9\x67\x49\x3d\x20\x7d\x6b\x8b\x4e\xdc\xbf\x9d\x1e\x37\x84\x45\x57\x36\x84\xed\x13\x9b\x67\x1a\xbf\x65\x76\xed\xf8\xd7\x34\x2c\xd8\x64\x9d\x37\x69\x70\xac\xbd\xe2\x24\xa7\xb0\xb6\xa9\x75\xa8\xba\x0a\x76\x8e\xd6\xab\xe1\x6c\x1b\x69\x4f\x65\xdd\x42\x31\xf4\x8c\x28\x84", 200);
                *(uint32_t*)0x10000544 = 0xc8;
                *(uint32_t*)0x10000548 = 0x100003c0;
                memcpy((void*)0x100003c0, "\xa6\xe4\xfe\x18\x6c\x76\x0a\xc2\xeb\xbc\xf9\xef\xda\x5e\x22\xe2\xdf\x6f\x15\x3f\xcc\xda\x1c\x16\x97\x60\x37\xd0\x3e\xe0\x04\xc3\xfb\xba\x5d\x35\xb6\xc0\x83\x13\x0f\xc7\x05\xf9\x58\x89\xba\x6a\xdb\xe5\xe3\xa7\xa5\xe7\x01\x36\xa0\xca\x08\x5b\x7e\x50\x4d\x0d\xf5\x5f\xe1\x84\xa9\xbd\x7a\x82", 72);
                *(uint32_t*)0x1000054c = 0x48;
                *(uint32_t*)0x10000550 = 0x10000440;
                memcpy((void*)0x10000440, "\xc7\xe0\x00\x30\xb3\xc4\x54\x17\x43\xee\x65\x13", 12);
                *(uint32_t*)0x10000554 = 0xc;
                *(uint32_t*)0x10000558 = 0x10000480;
                memcpy((void*)0x10000480, "\xa4\xa6\x7a\x4e\x72\x49\x2b\x9f\xab\x63\x79\xe4\xc0\xf3\x5b\x22\xb6\x9b\x6e\x7a\xef\xc5\x6b\xee\xfa\x85\x7a\xe2\x85\x43", 30);
                *(uint32_t*)0x1000055c = 0x1e;
                *(uint32_t*)0x10000560 = 0x100004c0;
                memcpy((void*)0x100004c0, "\x8f\x09\x5f\x8d\xf1\xc6\xbc\x4d\xfc\x1d\x82\x6f\x02\xdf\xa7\x79\x4b\xeb\xf9\xe7\xff\xc7\x16\x0f\x27\x6a\x53\xd1\xab\xc9\x96\xfc\xa8\xc8\xdb\xc7\xc7\x9c\x09\xcd\x5f\x95\x47\x75\xc9\xe8\xfc\x1c\xf2\xe0\xe3\xc0\x54\xfb\x54\xb6\x62\xd1\xb4\x5f\x52\x35\xfd\xbf\x86\x0c\x3f\xed\x3d\xc3\x4c\xeb\x30\xc4\x4b\xaa\x4d\xed\x7d\xe7\xe9\x53\x3f\x4d\xca\x14\x6d\xb0\xdb\x35\xa9\x3b\xa6\x54\xd4\x90\x11\xd9\xcb\x98\xd1\x57\x6b\x73\x1b\x9c\x2b\xb5\x8c\x0d\xf4\xed\xee\x6e\xf5\xae\x1f\x8b\x6b\xc9\x64\x6f\x5b\x4a\xde\x4d\xd5\x2a", 128);
                *(uint32_t*)0x10000564 = 0x80;
                *(uint32_t*)0x100015c4 = 5;
                *(uint32_t*)0x100015c8 = 0x10001580;
                *(uint32_t*)0x10001580 = 0x10000580;
                memcpy((void*)0x10000580, 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d\x78\x21\x78\x31\x91\xe0\x3b\x56\x82\xae\x7c\x0d\xad\xd4\xa9\x27\x24\xaa\xfc\xe0\x24\xae\x0a\xcc\x8e\x39\xcd\x3e\xaf\x4e\xde\x02\x49\x07\xe5\x09\x77\x22\x8d\xf4\xd3\xa6\xa4\x28\x88\x6f\xb2\x4f\x9a\xa1\x53\x66\xbc\xae\x6e\xbb\x17\x51\x40\x2b\x9f\x34\xa3\x85\x40\xc0\x92\x93\x04\x7f\xe9\x43\x73\xc1\x7a\x9c\xcc\xff\x1a\x1d\xe3\x22\xef\xc3\xfe\x33\x48\x01\xaa\x76\x44\x4d\xd0\xd4\xc0\x17\xfe\xb9\xd4\x53\xeb\x35\xf2\x1e\xfe\x33\x2e\xd9\xae\x75\x57\x1c\xa5\x77\x8e\xb4\xb6\x9d\x94\xf7\x69\xdb\xf0\x8c\xaf\xa0\x7a\x7f\x42\xf1\x2f\x8f\x2a\x9e\x3e\xb6\x97\x6e\x01\x62\xc3\xf2\x34\x51\xd9\x74\xc8\x7f\x60\x63\xbd\x31\xdb\x13\x85\x81\x1b\x55\x4c\x85\x50\xba\x51\x30\xf8\x8d\x79\x7a\x8b\xab\x3e\x01\xb2\x1e\x5f\xeb\xd2\xb0\xf6\x6e\x8f\x58\x42\xc1\x04\x10\x74\x28\x42\x3a\x8c\x8d\x39\x4c\x5e\x19\xea\x71\x75\x87\xa9\x2f\xe0\x70\xe5\xb4\x9e\xc4\xaf\x4b\xc6\x32\xe2\xf3\xe8\x0f\xa6\x51\x16\xf3\x8e\x12\xd8\xa2\x18\xf4\xf2\x36\x10\x5e\x39\x08\x02\xb3\xf9\x92\x16\x50\xba\x41\x81\x77\xf8\x33\x26\x18\x61\xab\xee\xbf\xae\xc3\x19\x89\x49\x2f\x7f\x02\xd1\xb0\x62\x16\x9d\x3b\xee\x9a\xa3\x99\xd3\xdf\xa9\xf9\x8d\x48\x29\xe9\x8f\xe7\x67\x23\x6f\x5d\xd9\x81\x09\x43\x9d\x31\x99\x9c\x03\x51\x9e\xa3\x8d\xe2\x5b\x3f\xe3\x8b\x42\x0f\xbe\x45\x52\xe9\xad\xed\xb3\x07\xfd\xff\xc9\x8e\xa4\x58\x6d\x60\xee\x31\x33\x28\xc5\xb6\xc3\xff\x50\x4e\xbe\xd2\x8f\x56\x69\x80\x16\xdd\x79\x6b\x9b\x9e\x85\x0d\x79\x18\xd8\xb8", 4096);
                *(uint32_t*)0x10001584 = 0x1000;
                *(uint32_t*)0x100015cc = 1;
                		syscall(SYS_sendfile, (intptr_t)r[0], 0xffffff9c, 8, 0x800ull, 0x100015c0, 0x10001600, 9);
                		break;
                	case 5:
                memcpy((void*)0x10001640, "\x6c\x81\x1b\xa5\x2c\x13\x9b\x40\xdc\x56\x80\xcb\x02\x75\xfd\xd4\x40\x46\x8e\x4d\xae\x07\xc7\x45\xba\x75\x8c\xb2\x66\x74\x2f\x46\x8f\xc4\x2d\xa0\x66\x9f\x60\x61\xcb\x2c\x9f\x92\x1e\x95\x34\x51\xb3\x13\x5e\x01\x74\xfe\x8e\xb1\xae\xbb\x2c\x3e\xb8\xa7\xfb\x3f\xc8\xde\xa1\x8e\x65\x2d\x01\xe7\x18\x4c\xa6\x5d\xce\x04\xf4\x67\x9a\xfe\xd2\x76\x6b\x06\x73\x49\xde\x7a\x5e\xf6\x0b\x58\x69\x92\x91\x9a\x20\x38\x2c\x0a\x1f\x20\xaf\x0c\x9c\x7f\xac\x61\xcf\x18\x38\x3e\x36\xfe\x56\x50\x2f\x5f\x26\xb8", 122);
                		syscall(SYS_ioctl, -1, 0xc0104453, 0x10001640);
                		break;
                	case 6:
                		res = syscall(SYS_freebsd10_pipe, 0x100016c0);
                		if (res != -1) {
                r[1] = *(uint32_t*)0x100016c0;
                r[2] = *(uint32_t*)0x100016c4;
                		}
                		break;
                	case 7:
                *(uint8_t*)0x10001700 = 0x10;
                *(uint8_t*)0x10001701 = 2;
                *(uint16_t*)0x10001702 = htobe16(0x4e23);
                *(uint32_t*)0x10001704 = htobe32(7);
                *(uint8_t*)0x10001708 = 0;
                *(uint8_t*)0x10001709 = 0;
                *(uint8_t*)0x1000170a = 0;
                *(uint8_t*)0x1000170b = 0;
                *(uint8_t*)0x1000170c = 0;
                *(uint8_t*)0x1000170d = 0;
                *(uint8_t*)0x1000170e = 0;
                *(uint8_t*)0x1000170f = 0;
                *(uint32_t*)0x10001740 = 0x10;
                		syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x8002, 0x10001700, 0x10001740);
                		break;
                	case 8:
                *(uint32_t*)0x100017c0 = 4;
                		syscall(SYS_getsockopt, -1, 0x84, 0x20, 0x10001780, 0x100017c0);
                		break;
                	case 9:
                *(uint32_t*)0x10001800 = 8;
                *(uint16_t*)0x10001804 = 0x1000;
                *(uint16_t*)0x10001806 = 0;
                *(uint16_t*)0x10001808 = 0x8000;
                *(uint16_t*)0x1000180a = 0x200;
                *(uint16_t*)0x1000180c = 0x4000;
                *(uint16_t*)0x1000180e = 0;
                *(uint16_t*)0x10001810 = 1;
                *(uint16_t*)0x10001812 = 0;
                *(uint32_t*)0x10001840 = 0x14;
                		syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x14, 0x10001800, 0x10001840);
                		break;
                	case 10:
                memcpy((void*)0x10000000, "\xc9\x0c\x8a\x7c\x33\x7f", 6);
                *(uint8_t*)0x10000006 = 0xaa;
                *(uint8_t*)0x10000007 = 0xaa;
                *(uint8_t*)0x10000008 = 0xaa;
                *(uint8_t*)0x10000009 = 0xaa;
                *(uint8_t*)0x1000000a = 0xaa;
                *(uint8_t*)0x1000000b = 0xaa;
                *(uint16_t*)0x1000000c = htobe16(0x8100);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 0, 3);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 3, 1);
                STORE_BY_BITMASK(uint16_t, , 0x1000000e, 0, 4, 12);
                *(uint16_t*)0x10000010 = htobe16(0x800);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 0x1c, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000012, 4, 4, 4);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 0, 2);
                STORE_BY_BITMASK(uint8_t, , 0x10000013, 0, 2, 6);
                *(uint16_t*)0x10000014 = htobe16(0x81);
                *(uint16_t*)0x10000016 = htobe16(0x65);
                *(uint16_t*)0x10000018 = htobe16(5);
                *(uint8_t*)0x1000001a = 1;
                *(uint8_t*)0x1000001b = 0x46;
                *(uint16_t*)0x1000001c = htobe16(0);
                *(uint32_t*)0x1000001e = htobe32(-1);
                *(uint8_t*)0x10000022 = 0xac;
                *(uint8_t*)0x10000023 = 0x14;
                *(uint8_t*)0x10000024 = 0;
                *(uint8_t*)0x10000025 = 0xbb;
                *(uint8_t*)0x10000026 = 0;
                *(uint8_t*)0x10000027 = 0x44;
                *(uint8_t*)0x10000028 = 0xc;
                *(uint8_t*)0x10000029 = 5;
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 0, 0, 4);
                STORE_BY_BITMASK(uint8_t, , 0x1000002a, 3, 4, 4);
                *(uint32_t*)0x1000002b = htobe32(9);
                *(uint32_t*)0x1000002f = htobe32(4);
                *(uint8_t*)0x10000033 = 0x83;
                *(uint8_t*)0x10000034 = 0xb;
                *(uint8_t*)0x10000035 = 6;
                *(uint32_t*)0x10000036 = htobe32(0xe0000001);
                *(uint32_t*)0x1000003a = htobe32(-1);
                *(uint8_t*)0x1000003e = 0;
                *(uint8_t*)0x1000003f = 4;
                memcpy((void*)0x10000040, "\xa4\xd4", 2);
                *(uint8_t*)0x10000042 = 0x89;
                *(uint8_t*)0x10000043 = 0x13;
                *(uint8_t*)0x10000044 = 4;
                *(uint8_t*)0x10000045 = 0xac;
                *(uint8_t*)0x10000046 = 0x14;
                *(uint8_t*)0x10000047 = 0;
                *(uint8_t*)0x10000048 = 0xbb;
                *(uint32_t*)0x10000049 = htobe32(-1);
                *(uint8_t*)0x1000004d = 0xac;
                *(uint8_t*)0x1000004e = 0x14;
                *(uint8_t*)0x1000004f = 0;
                *(uint8_t*)0x10000050 = 0xbb;
                *(uint32_t*)0x10000051 = htobe32(0);
                *(uint8_t*)0x10000055 = 0x94;
                *(uint8_t*)0x10000056 = 6;
                *(uint32_t*)0x10000057 = htobe32(9);
                *(uint8_t*)0x1000005b = 0x94;
                *(uint8_t*)0x1000005c = 6;
                *(uint32_t*)0x1000005d = htobe32(0x80000001);
                *(uint8_t*)0x10000061 = 1;
                *(uint8_t*)0x10000062 = 0x83;
                *(uint8_t*)0x10000063 = 0x1f;
                *(uint8_t*)0x10000064 = 2;
                *(uint32_t*)0x10000065 = htobe32(0xe0000002);
                *(uint32_t*)0x10000069 = htobe32(0xe0000001);
                *(uint32_t*)0x1000006d = htobe32(0x7f000001);
                *(uint32_t*)0x10000071 = htobe32(0);
                *(uint32_t*)0x10000075 = htobe32(0x7f000001);
                *(uint32_t*)0x10000079 = htobe32(0x7f000001);
                *(uint32_t*)0x1000007d = htobe32(0xe0000001);
                memcpy((void*)0x10000082, "\x8d\x86\x2d\x09\x9b\x6b\xb2\xba\x6a\xea\xa6\xab\xd3\xe9\xd5\x82\xc9", 17);
                		struct csum_inet csum_1;
                		csum_inet_init(&csum_1);
                csum_inet_update(&csum_1, (const uint8_t*)0x10000012, 112);
                *(uint16_t*)0x1000001c = csum_inet_digest(&csum_1);
                		break;
                	case 11:
                memcpy((void*)0x100000c0, "\xc4\xe1\xf5\xf3\x7b\x05\xc4\xc2\xf5\x47\x52\x5a\x80\x8f\x4e\x00\x00\x00\x00\x66\x0f\x38\x1d\xbc\x60\x07\x00\x00\x00\xc4\xe2\xad\x91\x74\xae\x7e\x81\xfe\x00\x00\x00\x00\x8f\xe9\xa0\x99\xd8\xe4\xff\xc4\xc1\x93\x5c\x17\xc4\xc3\xe1\x41\xae\x2f\x10\x9d\xc2\xd8", 64);
                syz_execute_func(0x100000c0);
                		break;
                	case 12:
                		break;
                	}
                
                }
                int main(void)
                {
                		syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
                			use_temporary_dir();
                			loop();
                	return 0;
                }
                
                <stdin>:331:17: error: use of undeclared identifier 'SYS_shm_open2'
                                res = syscall(SYS_shm_open2, 0x10000240, 0x800, 0, 7, 0x10000280);
                                              ^
                1 error generated.
                
                compiler invocation: clang [-o /tmp/syz-executor667409217 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow]
        --- FAIL: TestGenerate/freebsd/386/6 (1.58s)
            csource_test.go:121: 
        --- FAIL: TestGenerate/freebsd/386/3 (1.29s)
            csource_test.go:121: 
        --- FAIL: TestGenerate/freebsd/386/2 (1.35s)
            csource_test.go:121: 
        --- FAIL: TestGenerate/freebsd/386/1 (1.31s)
            csource_test.go:121: 
        --- FAIL: TestGenerate/freebsd/386/5 (1.55s)
            csource_test.go:121: 
FAIL
FAIL	github.com/google/syzkaller/pkg/csource	16.615s
ok  	github.com/google/syzkaller/pkg/db	(cached)
ok  	github.com/google/syzkaller/pkg/email	(cached)
?   	github.com/google/syzkaller/pkg/gce	[no test files]
?   	github.com/google/syzkaller/pkg/gcs	[no test files]
?   	github.com/google/syzkaller/pkg/hash	[no test files]
ok  	github.com/google/syzkaller/pkg/host	2.593s
?   	github.com/google/syzkaller/pkg/html	[no test files]
ok  	github.com/google/syzkaller/pkg/ifuzz	(cached)
?   	github.com/google/syzkaller/pkg/ifuzz/iset	[no test files]
?   	github.com/google/syzkaller/pkg/ifuzz/powerpc	[no test files]
?   	github.com/google/syzkaller/pkg/ifuzz/powerpc/generated	[no test files]
?   	github.com/google/syzkaller/pkg/ifuzz/x86	[no test files]
?   	github.com/google/syzkaller/pkg/ifuzz/x86/gen	[no test files]
?   	github.com/google/syzkaller/pkg/ifuzz/x86/generated	[no test files]
ok  	github.com/google/syzkaller/pkg/instance	3.406s
ok  	github.com/google/syzkaller/pkg/ipc	7.873s
?   	github.com/google/syzkaller/pkg/ipc/ipcconfig	[no test files]
?   	github.com/google/syzkaller/pkg/kcidb	[no test files]
ok  	github.com/google/syzkaller/pkg/kconfig	(cached)
ok  	github.com/google/syzkaller/pkg/kd	(cached)
ok  	github.com/google/syzkaller/pkg/log	(cached)
ok  	github.com/google/syzkaller/pkg/mgrconfig	1.889s
ok  	github.com/google/syzkaller/pkg/osutil	(cached)
ok  	github.com/google/syzkaller/pkg/report	5.645s
ok  	github.com/google/syzkaller/pkg/repro	1.800s
?   	github.com/google/syzkaller/pkg/rpctype	[no test files]
ok  	github.com/google/syzkaller/pkg/runtest	63.117s
ok  	github.com/google/syzkaller/pkg/serializer	(cached)
?   	github.com/google/syzkaller/pkg/signal	[no test files]
ok  	github.com/google/syzkaller/pkg/symbolizer	0.530s
ok  	github.com/google/syzkaller/pkg/vcs	9.576s
ok  	github.com/google/syzkaller/prog	11.492s
ok  	github.com/google/syzkaller/prog/test	(cached)
?   	github.com/google/syzkaller/sys	[no test files]
?   	github.com/google/syzkaller/sys/akaros	[no test files]
?   	github.com/google/syzkaller/sys/akaros/gen	[no test files]
?   	github.com/google/syzkaller/sys/freebsd	[no test files]
?   	github.com/google/syzkaller/sys/freebsd/gen	[no test files]
?   	github.com/google/syzkaller/sys/fuchsia	[no test files]
?   	github.com/google/syzkaller/sys/fuchsia/fidlgen	[no test files]
?   	github.com/google/syzkaller/sys/fuchsia/gen	[no test files]
?   	github.com/google/syzkaller/sys/fuchsia/layout	[no test files]
ok  	github.com/google/syzkaller/sys/linux	(cached)
?   	github.com/google/syzkaller/sys/linux/gen	[no test files]
?   	github.com/google/syzkaller/sys/netbsd	[no test files]
?   	github.com/google/syzkaller/sys/netbsd/gen	[no test files]
ok  	github.com/google/syzkaller/sys/openbsd	(cached)
?   	github.com/google/syzkaller/sys/openbsd/gen	[no test files]
?   	github.com/google/syzkaller/sys/syz-extract	[no test files]
?   	github.com/google/syzkaller/sys/syz-sysgen	[no test files]
?   	github.com/google/syzkaller/sys/targets	[no test files]
?   	github.com/google/syzkaller/sys/test	[no test files]
?   	github.com/google/syzkaller/sys/test/gen	[no test files]
?   	github.com/google/syzkaller/sys/trusty	[no test files]
?   	github.com/google/syzkaller/sys/trusty/gen	[no test files]
?   	github.com/google/syzkaller/sys/windows	[no test files]
?   	github.com/google/syzkaller/sys/windows/gen	[no test files]
ok  	github.com/google/syzkaller/syz-ci	1.861s
ok  	github.com/google/syzkaller/syz-fuzzer	0.918s
ok  	github.com/google/syzkaller/syz-hub	0.094s
ok  	github.com/google/syzkaller/syz-hub/state	(cached)
?   	github.com/google/syzkaller/syz-manager	[no test files]
?   	github.com/google/syzkaller/tools/syz-benchcmp	[no test files]
?   	github.com/google/syzkaller/tools/syz-bisect	[no test files]
?   	github.com/google/syzkaller/tools/syz-check	[no test files]
?   	github.com/google/syzkaller/tools/syz-cover	[no test files]
?   	github.com/google/syzkaller/tools/syz-crush	[no test files]
?   	github.com/google/syzkaller/tools/syz-db	[no test files]
?   	github.com/google/syzkaller/tools/syz-execprog	[no test files]
?   	github.com/google/syzkaller/tools/syz-expand	[no test files]
?   	github.com/google/syzkaller/tools/syz-fmt	[no test files]
?   	github.com/google/syzkaller/tools/syz-hubtool	[no test files]
?   	github.com/google/syzkaller/tools/syz-kcidb	[no test files]
?   	github.com/google/syzkaller/tools/syz-kconf	[no test files]
ok  	github.com/google/syzkaller/tools/syz-linter	2.366s
?   	github.com/google/syzkaller/tools/syz-make	[no test files]
?   	github.com/google/syzkaller/tools/syz-minconfig	[no test files]
?   	github.com/google/syzkaller/tools/syz-mutate	[no test files]
?   	github.com/google/syzkaller/tools/syz-prog2c	[no test files]
?   	github.com/google/syzkaller/tools/syz-reporter	[no test files]
?   	github.com/google/syzkaller/tools/syz-repro	[no test files]
?   	github.com/google/syzkaller/tools/syz-reprolist	[no test files]
?   	github.com/google/syzkaller/tools/syz-runtest	[no test files]
?   	github.com/google/syzkaller/tools/syz-showprio	[no test files]
?   	github.com/google/syzkaller/tools/syz-stress	[no test files]
?   	github.com/google/syzkaller/tools/syz-symbolize	[no test files]
?   	github.com/google/syzkaller/tools/syz-testbuild	[no test files]
?   	github.com/google/syzkaller/tools/syz-trace2syz	[no test files]
ok  	github.com/google/syzkaller/tools/syz-trace2syz/parser	0.107s
ok  	github.com/google/syzkaller/tools/syz-trace2syz/proggen	0.579s
?   	github.com/google/syzkaller/tools/syz-tty	[no test files]
?   	github.com/google/syzkaller/tools/syz-upgrade	[no test files]
?   	github.com/google/syzkaller/tools/syz-usbgen	[no test files]
ok  	github.com/google/syzkaller/vm	13.657s
?   	github.com/google/syzkaller/vm/adb	[no test files]
?   	github.com/google/syzkaller/vm/bhyve	[no test files]
?   	github.com/google/syzkaller/vm/gce	[no test files]
?   	github.com/google/syzkaller/vm/gvisor	[no test files]
ok  	github.com/google/syzkaller/vm/isolated	1.994s
?   	github.com/google/syzkaller/vm/kvm	[no test files]
?   	github.com/google/syzkaller/vm/odroid	[no test files]
?   	github.com/google/syzkaller/vm/qemu	[no test files]
ok  	github.com/google/syzkaller/vm/vmimpl	2.109s
?   	github.com/google/syzkaller/vm/vmm	[no test files]
?   	github.com/google/syzkaller/vm/vmware	[no test files]
FAIL