#include "textflag.h"

// System call support for AMD64 BSD

// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.

TEXT	·Syscall(SB),NOSPLIT,$0-56
	JMP	syscall·Syscall(SB)

TEXT	·Syscall6(SB),NOSPLIT,$0-80
	JMP	syscall·Syscall6(SB)

TEXT	·Syscall9(SB),NOSPLIT,$0-104
	JMP	syscall·Syscall9(SB)

TEXT	·RawSyscall(SB),NOSPLIT,$0-56

#include "textflag.h"

// System call support for ARM BSD

// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.

TEXT	·Syscall(SB),NOSPLIT,$0-28
	B	syscall·Syscall(SB)

TEXT	·Syscall6(SB),NOSPLIT,$0-40
	B	syscall·Syscall6(SB)

TEXT	·Syscall9(SB),NOSPLIT,$0-52
	B	syscall·Syscall9(SB)

TEXT	·RawSyscall(SB),NOSPLIT,$0-28
	B	syscall·RawSyscall(SB)

#include "textflag.h"

// System call support for RISCV64 BSD

// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.

TEXT	·Syscall(SB),NOSPLIT,$0-56
	JMP	syscall·Syscall(SB)

TEXT	·Syscall6(SB),NOSPLIT,$0-80
	JMP	syscall·Syscall6(SB)

TEXT	·Syscall9(SB),NOSPLIT,$0-104
	JMP	syscall·Syscall9(SB)

TEXT	·RawSyscall(SB),NOSPLIT,$0-56

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

package os

import (
	"syscall"
	"unsafe"
)

const _P_PID = 0

func wait6(idtype, id, options int) (status int, errno syscall.Errno) {
	// freebsd32_wait6_args{ idtype, id1, id2, status, options, wrusage, info }
	_, _, errno = syscall.Syscall9(syscall.SYS_WAIT6, uintptr(idtype), uintptr(id), 0, uintptr(unsafe.Pointer(&status)), uintptr(options), 0, 0, 0, 0)

#include "textflag.h"

//
// System calls for mips, Linux
//

// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.

TEXT ·Syscall(SB),NOSPLIT,$0-28
	JMP syscall·Syscall(SB)

TEXT ·Syscall6(SB),NOSPLIT,$0-40
	JMP syscall·Syscall6(SB)

TEXT ·Syscall9(SB),NOSPLIT,$0-52
	JMP syscall·Syscall9(SB)

TEXT ·SyscallNoError(SB),NOSPLIT,$0-24

//go:linkname syscall_syscall syscall.syscall
//go:linkname syscall_syscall6 syscall.syscall6
//go:linkname syscall_syscall6X syscall.syscall6X
//go:linkname syscall_syscall9 syscall.syscall9
//go:linkname syscall_rawSyscall syscall.rawSyscall
//go:linkname syscall_rawSyscall6 syscall.rawSyscall6

//
// System call support for ARM, FreeBSD
//

// func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, errno uintptr);
// func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr);
// func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, errno uintptr)

TEXT	·Syscall(SB),NOSPLIT,$0-28
	BL runtime·entersyscall(SB)
	MOVW trap+0(FP), R7 // syscall number
	MOVW a1+4(FP), R0 // a1
	MOVW a2+8(FP), R1 // a2

	JAL	runtime·exitsyscall(SB)
	RET

// func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64);
// The openbsd/mips64 kernel only accepts eight syscall arguments, except
// for SYS_syscall, where an additional argument can be passed on the stack.
TEXT	·Syscall9(SB),NOSPLIT,$0-104
	JAL	runtime·entersyscall(SB)
	MOVV	num+0(FP), R2	// syscall entry
	MOVV	a1+8(FP), R4
	MOVV	a2+16(FP), R5

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

package os

import (
	"syscall"
	"unsafe"
)

const _P_PID = 0

func wait6(idtype, id, options int) (status int, errno syscall.Errno) {
	// freebsd32_wait6_args{ idtype, pad, id1, id2, status, options, wrusage, info }
	_, _, errno = syscall.Syscall9(syscall.SYS_WAIT6, uintptr(idtype), 0, uintptr(id), 0, uintptr(unsafe.Pointer(&status)), uintptr(options), 0, 0, 0)

}

func (msghdr *Msghdr) SetIovlen(length int) {
	msghdr.Iovlen = int32(length)
}

func (cmsg *Cmsghdr) SetLen(length int) {
	cmsg.Len = uint32(length)
}

func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)

//sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
//sys	Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64