asm_linux_ppc64x.s

     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)
    14  TEXT ·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
    28  ok:
    29  	MOVD	R3, r1+32(FP)	// r1
    30  	MOVD	R0, err+40(FP)	// errno
    31  	RET
    32  
    33  TEXT ·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
    45
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