asm_linux_ppc64x.s

Documentation: syscall

     1// Copyright 2014 The Go Authors. All rights reserved.
     2// Use of this source code is governed by a BSD-style
     3// license that can be found in the LICENSE file.
     4
     5//go:build linux && (ppc64 || ppc64le)
     6
     7#include "textflag.h"
     8
     9//
    10// System calls for ppc64, Linux
    11//
    12
    13// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
    14TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-48
    15	MOVD	a1+8(FP), R3
    16	MOVD	a2+16(FP), R4
    17	MOVD	a3+24(FP), R5
    18	MOVD	R0, R6
    19	MOVD	R0, R7
    20	MOVD	R0, R8
    21	MOVD	trap+0(FP), R9	// syscall entry
    22	SYSCALL R9
    23	BVC	ok
    24	MOVD	$-1, R4
    25	MOVD	R4, r1+32(FP)	// r1
    26	MOVD	R3, err+40(FP)	// errno
    27	RET
    28ok:
    29	MOVD	R3, r1+32(FP)	// r1
    30	MOVD	R0, err+40(FP)	// errno
    31	RET
    32
    33TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
    34	MOVD	a1+8(FP), R3
    35	MOVD	a2+16(FP), R4
    36	MOVD	a3+24(FP), R5
    37	MOVD	R0, R6
    38	MOVD	R0, R7
    39	MOVD	R0, R8
    40	MOVD	trap+0(FP), R9	// syscall entry
    41	SYSCALL R9
    42	MOVD	R3, r1+32(FP)
    43	MOVD	R0, r2+40(FP)
    44	RET
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