int diff;

	gettimeofday(&tvstart, NULL);

	go_start_profile();

	// Busy wait so we have something to profile.
	// If we just sleep the profiling signal will never fire.
	while (1) {
		gettimeofday(&tvnow, NULL);
		diff = (tvnow.tv_sec - tvstart.tv_sec) * 1000 * 1000 + (tvnow.tv_usec - tvstart.tv_usec);

		// Profile frequency is 100Hz so we should definitely
		// get a signal in 50 milliseconds.
		if (diff > 50 * 1000)
			break;

    attributes:
      label: "What is the reason that you could not retract this package instead?"
      description: |
        Requesting we remove a module here only hides the generated documentation on pkg.go.dev.
        It does not affect the behaviour of proxy.golang.org or the go command.
        Instead we recommend using the retract directive which will be processed by all 3 of the above.

		{src: "msan7.go"},
		{src: "msan8.go"},
		{src: "msan_fail.go", wantErr: true},
		// This may not always fail specifically due to MSAN. It may sometimes
		// fail because of a fault. However, we don't care what kind of error we
		// get here, just that we get an error. This is an MSAN test because without
		// MSAN it would not fail deterministically.
		{src: "arena_fail.go", wantErr: true, experiments: []string{"arenas"}},
	}

	}

	attempts := 1000
	threads := 4

	// Restrict the number of attempts based on RLIMIT_NPROC.
	// Tediously, RLIMIT_NPROC was left out of the syscall package,
	// probably because it is not in POSIX.1, so we define it here.
	// It is not defined on Solaris.
	var nproc int
	setNproc := true
	switch runtime.GOOS {
	default:
		setNproc = false
	case "aix":
		nproc = 9
	case "linux":
		nproc = 6

	var s scanner.Scanner
	s.Init(r)
	// Newline is like a semicolon; other space characters are fine.
	s.Whitespace = 1<<'\t' | 1<<'\r' | 1<<' '
	// Don't skip comments: we need to count newlines.
	s.Mode = scanner.ScanChars |
		scanner.ScanFloats |
		scanner.ScanIdents |
		scanner.ScanInts |
		scanner.ScanStrings |
		scanner.ScanComments
	s.Position.Filename = name

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build cgo

// Test that we can have two identical cgo packages in a single binary.
// No runtime test; just make sure it compiles.

package cgotest

import (
	_ "cmd/cgo/internal/test/issue23555a"
	_ "cmd/cgo/internal/test/issue23555b"

		     void f25() { GoStr25(); }`,
		fail: true,
	},
	{
		// Don't check non-pointer data.
		// Uses unsafe code to get a pointer we shouldn't check.
		// Although we use unsafe, the uintptr represents an integer
		// that happens to have the same representation as a pointer;
		// that is, we are testing something that is not unsafe.
		name: "ptrdata1",
		c: `#include <stdlib.h>
		    void f26(void* p) {}`,

// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build ignore

package main

// This file tests that we don't generate an incorrect field location
// for a bitfield that appears aligned.

/*
struct bitfields {
    unsigned int B1     :  5;
    unsigned int B2     :  1;
    unsigned int B3     :  1;

operating system and architecture, visit
https://go.dev/doc/install/source
for source installation instructions.

### Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines at https://go.dev/doc/contribute.

Note that the Go project uses the issue tracker for bug reports and

#include <assert.h>
#include "life.h"
#include "_cgo_export.h"

const int MYCONST = 0;

// Do the actual manipulation of the life board in C.  This could be
// done easily in Go, we are just using C for demonstration
// purposes.
void
Step(int x, int y, int *a, int *n)
{
	struct GoStart_return r;

	// Use Go to start 4 goroutines each of which handles 1/4 of the
	// board.