asm_linux_ppc64x.s raw

   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