//sysnb	Setregid(rgid int, egid int) (err error)
//sysnb	Setreuid(ruid int, euid int) (err error)
//sysnb	setrlimit(which int, lim *Rlimit) (err error)
//sysnb	Setsid() (pid int, err error)
//sysnb	Settimeofday(tp *Timeval) (err error)
//sysnb	Setuid(uid int) (err error)
//sys	Stat(path string, stat *Stat_t) (err error)
//sys	Statfs(path string, stat *Statfs_t) (err error)
//sys	Symlink(path string, link string) (err error)

//sysnb	Setregid(rgid int, egid int) (err error)
//sysnb	Setreuid(ruid int, euid int) (err error)
//sysnb	setrlimit(which int, lim *Rlimit) (err error)
//sysnb	Setsid() (pid int, err error)
//sysnb	Settimeofday(tp *Timeval) (err error)
//sysnb	Setuid(uid int) (err error)
//sys	Stat(path string, stat *Stat_t) (err error)
//sys	Symlink(path string, link string) (err error)
//sys	Sync() (err error)

//sysnb	Setregid(rgid int, egid int) (err error)
//sysnb	Setreuid(ruid int, euid int) (err error)
//sysnb	setrlimit(which int, lim *Rlimit) (err error)
//sysnb	Setsid() (pid int, err error)
//sysnb	Settimeofday(tp *Timeval) (err error)
//sysnb	Setuid(uid int) (err error)
//sys	Stat(path string, stat *Stat_t) (err error)
//sys	Statfs(path string, stat *Statfs_t) (err error)
//sys	Symlink(path string, link string) (err error)

//sysnb	Setregid(rgid int, egid int) (err error)
//sysnb	Setreuid(ruid int, euid int) (err error)
//sysnb	setrlimit(which int, lim *Rlimit) (err error)
//sysnb	Setsid() (pid int, err error)
//sysnb	Settimeofday(tp *Timeval) (err error)
//sysnb	Setuid(uid int) (err error)
//sys	Statfs(path string, stat *Statfs_t) (err error)
//sys	Symlink(path string, link string) (err error)
//sys	Sync() (err error)

#include "libgo6.h"

int main(int argc, char **argv) {
	struct timeval tvstart, tvnow;
	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);

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

//go:build gccgo && linux && amd64

package unix

import "syscall"

//extern gettimeofday
func realGettimeofday(*Timeval, *byte) int32

func gettimeofday(tv *Timeval) (err syscall.Errno) {
	r := realGettimeofday(tv, nil)
	if r < 0 {
		return syscall.GetErrno()
	}
	return 0

//go:cgo_import_dynamic fstat$INODE64 fstat$INODE64 ""
//go:cgo_import_dynamic ftruncate ftruncate ""
//go:cgo_import_dynamic getpid getpid ""
//go:cgo_import_dynamic getrlimit getrlimit ""
//go:cgo_import_dynamic gettimeofday gettimeofday ""
//go:cgo_import_dynamic getuid getuid ""
//go:cgo_import_dynamic grantpt grantpt ""
//go:cgo_import_dynamic ioctl ioctl ""
//go:cgo_import_dynamic isatty isatty ""

//go:cgo_import_dynamic fstat fstat ""
//go:cgo_import_dynamic ftruncate ftruncate ""
//go:cgo_import_dynamic getpid getpid ""
//go:cgo_import_dynamic getrlimit getrlimit ""
//go:cgo_import_dynamic gettimeofday gettimeofday ""
//go:cgo_import_dynamic getuid getuid ""
//go:cgo_import_dynamic grantpt grantpt ""
//go:cgo_import_dynamic ioctl ioctl ""
//go:cgo_import_dynamic isatty isatty ""
//go:cgo_import_dynamic lstat lstat ""

}

static void* spin(void *arg) {
	size_t n;
	struct timeval tvstart, tvnow;
	int diff;
	void *prev;
	void *cur;

	prev = NULL;
	gettimeofday(&tvstart, NULL);
	for (n = 0; n < 1<<20; n++) {
		cur = malloc(n);
		free(prev);
		prev = cur;

		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

//sys	futimesat(dirfd int, path string, times *[2]Timeval) (err error)

//go:noescape
func gettimeofday(tv *Timeval) (err Errno)

func Gettimeofday(tv *Timeval) (err error) {
	errno := gettimeofday(tv)
	if errno != 0 {
		return errno
	}
	return nil
}

func Time(t *Time_t) (tt Time_t, err error) {
	var tv Timeval
	errno := gettimeofday(&tv)
	if errno != 0 {
		return 0, errno
	}
	if t != nil {
		*t = Time_t(tv.Sec)