die("malloc");
	}
	ss.ss_flags = 0;
	ss.ss_size = CSIGSTKSZ;
	if (sigaltstack(&ss, NULL) < 0) {
		die("sigaltstack");
	}

	oldcount = SIGIOCount();

	// Call a Go function that will call a C function to send us a
	// SIGIO.
	tid = pthread_self();
	GoRaiseSIGIO(&tid);

	// Wait until the signal has been delivered.
	i = 0;
	while (SIGIOCount() == oldcount) {
		ts.tv_sec = 0;

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "_cgo_export.h"

/* Test calling a Go function with multiple return values.  */

void
callMulti(void)
{
	struct multi_return result = multi();
	assert(strcmp(result.r0, "multi") == 0);
	assert(result.r1 == 0);
	free(result.r0);

static void ioHandler(int signo, siginfo_t* info, void* ctxt) {
	char a[1024];

	recur(4, a);
	sigioSeen = 1;
}

static jmp_buf jmp;
static char* nullPointer;

// An arbitrary function which requires proper stack alignment; see
// http://golang.org/issue/17641.
static void callWithVarargs(void* dummy, ...) {
	va_list args;
	va_start(args, dummy);
	va_end(args);
}

			fprintf(stderr, "OK\n");
			fflush(stderr);

			// The program should be interrupted before
			// this sleep finishes. We use select rather
			// than sleep because in older versions of
			// glibc the sleep function does some signal
			// fiddling to handle SIGCHLD.  If this
			// program is fiddling signals just when the
			// test program sends the signal, the signal
			// may be delivered to a Go thread which will

// license that can be found in the LICENSE file.

#include <stdint.h>
#include <stdio.h>

#include "p.h"
#include "libgo.h"

// Tests libgo.so to export the following functions.
//   int8_t DidInitRun();
//   int8_t DidMainRun();
//   int32_t FromPkg();
//   uint32_t Divu(uint32_t, uint32_t);
int main(void) {
  int8_t ran_init = DidInitRun();
  if (!ran_init) {

// Instead, while building the syso, we compile and run a C++ program
// that checks that the sizes match. The program also checks (during compilation)
// that all the function prototypes match the BoringCrypto equivalents.
// The generation of the checking program depends on the declaration
// forms used below (one line for most, multiline for enums).

#include <stdlib.h> // size_t

#define _STRINGIFY2_(x) #x
#define _STRINGIFY_(x) _STRINGIFY2_(x)
#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)

// Call syscall from C code because the gccgo support for calling from
// Go to C does not support varargs functions.

struct ret {
	uintptr_t r;
	uintptr_t err;
};

    return 1;
  }
  int32_t ret = fn();
  if (ret != want) {
    fprintf(stderr, "ERROR: %s=%d, want %d\n", fname, ret, want);
    return 1;
  }
  return 0;
}

// Tests libgo.so to export the following functions.
//   int8_t DidInitRun() // returns true
//   int8_t DidMainRun() // returns true
//   int32_t FromPkg() // returns 1024
int main(int argc, char** argv) {
  void* handle = dlopen(argv[1], RTLD_LAZY | RTLD_GLOBAL);

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>

#define fd (30)

// Tests libgo2.so, which does not export any functions.
// Read a string from the file descriptor and print it.
int main(void) {
  int i;
  ssize_t n;
  char buf[20];
  struct timespec ts;

  // The descriptor will be initialized in a thread, so we have to