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

#include "textflag.h"

// func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
	MOVW	num+0(FP), R7	// syscall entry
	MOVW	a1+4(FP), R0
	MOVW	a2+8(FP), R1
	MOVW	a3+12(FP), R2
	MOVW	a4+16(FP), R3
	MOVW	a5+20(FP), R4
	MOVW	a6+24(FP), R5
	SWI	$0

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

package syscall

import (
	"unsafe"
)

var (
	RawSyscallNoError = rawSyscallNoError
	ForceClone3       = &forceClone3
	Prlimit           = prlimit
)

const (
	Sys_GETEUID = sys_GETEUID
)

func Tcgetpgrp(fd int) (pgid int32, err error) {
	_, _, errno := Syscall6(SYS_IOCTL, uintptr(fd), uintptr(TIOCGPGRP), uintptr(unsafe.Pointer(&pgid)), 0, 0, 0)

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

#include "textflag.h"

// func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr)
//
// We need to convert to the syscall ABI.
//
// arg | ABIInternal | Syscall
// ---------------------------
// num | AX          | AX
// a1  | BX          | DI
// a2  | CX          | SI
// a3  | DI          | DX

	entersyscall()
	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscallX)), unsafe.Pointer(&fn))
	exitsyscall()
	return
}
func syscallX()

// golang.org/x/sys linknames syscall.syscall6
// (in addition to standard package syscall).
// Do not remove or change the type signature.
//
//go:linkname syscall_syscall6 syscall.syscall6
//go:nosplit
//go:cgo_unsafe_args

	_, _, e1 := Syscall6(SYS_PTRACE, uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func ptracePtr(request int, pid int, addr uintptr, data unsafe.Pointer) (err error) {

// it in our own nicer implementation, either here or in
// syscall_bsd.go or syscall_unix.go.

package syscall

import (
	"internal/abi"
	"unsafe"
)

func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)

// instead of the glibc-specific "CALL 0x10(GS)".
#define INVOKE_SYSCALL	INT	$0x80

// func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr)
//
// Syscall # in AX, args in BX CX DX SI DI BP, return in AX
TEXT ·Syscall6(SB),NOSPLIT,$0-40
	MOVL	num+0(FP), AX	// syscall entry
	MOVL	a1+4(FP), BX
	MOVL	a2+8(FP), CX
	MOVL	a3+12(FP), DX
	MOVL	a4+16(FP), SI
	MOVL	a5+20(FP), DI

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

#include "textflag.h"

// func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr)
//
// We need to convert to the syscall ABI.
//
// arg | ABIInternal | Syscall
// ---------------------------
// num | R4          | R11
// a1  | R5          | R4
// a2  | R6          | R5
// a3  | R7          | R6

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

package unix

import (
	"syscall"
	"unsafe"
)

// Note that pgid should really be pid_t, however _C_int (aka int32) is
// generally equivalent.

func Tcsetpgrp(fd int, pgid int32) (err error) {
	_, _, errno := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), uintptr(syscall.TIOCSPGRP), uintptr(unsafe.Pointer(&pgid)), 0, 0, 0)
	if errno != 0 {
		return errno
	}

			// in a syscall, in which case it's currently not executing. gp.sched contains the most
			// up-to-date information about where it stopped, and like case (1), we match gcallers
			// here.
			//
			// (3) We're called against a gp that we're not currently executing on, but that is in
			// a syscall, in which case gp.syscallsp != 0. gp.syscall* contains the most up-to-date