//go:cgo_import_dynamic libc_wait4 wait4 "libc.so"
//go:cgo_import_dynamic libc_issetugid issetugid "libc.so"

//go:linkname libc_chdir libc_chdir
//go:linkname libc_chroot libc_chroot
//go:linkname libc_close libc_close
//go:linkname libc_execve libc_execve
//go:linkname libc_fcntl libc_fcntl
//go:linkname libc_forkx libc_forkx
//go:linkname libc_gethostname libc_gethostname
//go:linkname libc_getpid libc_getpid

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

TEXT ·trampoline(SB),0,$0
	CALL	libc_getpid(SB)
	CALL	libc_kill(SB)
	CALL	libc_open(SB)
	CALL	libc_close(SB)

package main

import (
	_ "unsafe"
)

//go:cgo_import_dynamic libc_getpid getpid "libc.so"
//go:cgo_import_dynamic libc_kill kill "libc.so"
//go:cgo_import_dynamic libc_close close "libc.so"
//go:cgo_import_dynamic libc_open open "libc.so"

//go:cgo_import_dynamic _ _ "libc.so"

func trampoline()

func main() {
	trampoline()

//go:cgo_import_dynamic libpthread_kill pthread_kill "libpthread.a/shr_xpg5_64.o"

//go:linkname libc__Errno libc__Errno
//go:linkname libc_clock_gettime libc_clock_gettime
//go:linkname libc_close libc_close
//go:linkname libc_exit libc_exit
//go:linkname libc_getpid libc_getpid
//go:linkname libc_getsystemcfg libc_getsystemcfg
//go:linkname libc_kill libc_kill
//go:linkname libc_madvise libc_madvise

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

package runtime

import "unsafe"

var (
	libc_chdir,
	libc_chroot,
	libc_close,
	libc_execve,
	libc_fcntl,
	libc_forkx,
	libc_gethostname,
	libc_getpid,
	libc_ioctl,
	libc_setgid,
	libc_setgroups,
	libc_setrlimit,
	libc_setsid,
	libc_setuid,
	libc_setpgid,

//go:linkname libc_Adjtime libc_Adjtime
//go:linkname libc_Chdir libc_Chdir
//go:linkname libc_Chmod libc_Chmod
//go:linkname libc_Chown libc_Chown
//go:linkname libc_Chroot libc_Chroot
//go:linkname libc_Close libc_Close
//go:linkname libc_Dup libc_Dup
//go:linkname libc_Fchdir libc_Fchdir
//go:linkname libc_Fchmod libc_Fchmod
//go:linkname libc_Fchown libc_Fchown
//go:linkname libc_Fpathconf libc_Fpathconf

	JMP	libc_chmod(SB)
TEXT ·libc_chown_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_chown(SB)
TEXT ·libc_chroot_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_chroot(SB)
TEXT ·libc_close_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_close(SB)
TEXT ·libc_dup_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_dup(SB)
TEXT ·libc_dup2_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_dup2(SB)
TEXT ·libc_dup3_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_dup3(SB)

	return
}

// like close, but must not split stack, for fork.
//
//go:linkname syscall_closeFD syscall.closeFD
//go:nosplit
func syscall_closeFD(fd int32) int32 {
	_, err := syscall1(&libc_close, uintptr(fd))
	return int32(err)
}

//go:linkname syscall_dup2child syscall.dup2child
//go:nosplit
func syscall_dup2child(old, new uintptr) (val, err uintptr) {
	val, err = syscall2(&libc_dup2, old, new)

//go:linkname libc_fcntl libc_fcntl
//go:linkname libc_fsync_range libc_fsync_range
//go:linkname libc_acct libc_acct
//go:linkname libc_chdir libc_chdir
//go:linkname libc_chroot libc_chroot
//go:linkname libc_close libc_close
//go:linkname libc_dup libc_dup
//go:linkname libc_exit libc_exit
//go:linkname libc_faccessat libc_faccessat
//go:linkname libc_fchdir libc_fchdir
//go:linkname libc_fchmod libc_fchmod

	JMP	libc_chmod(SB)
TEXT ·libc_chown_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_chown(SB)
TEXT ·libc_chroot_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_chroot(SB)
TEXT ·libc_close_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_close(SB)
TEXT ·libc_dup_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_dup(SB)
TEXT ·libc_dup2_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_dup2(SB)
TEXT ·libc_dup3_trampoline(SB),NOSPLIT,$0-0
	JMP	libc_dup3(SB)