github.com/stingnevermore/go@v0.0.0-20180120041312-3810f5bfed72/src/syscall/asm_linux_ppc64x.s (about)

     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  // +build linux
     6  // +build ppc64 ppc64le
     7  
     8  #include "textflag.h"
     9  
    10  //
    11  // System calls for ppc64, Linux
    12  //
    13  
    14  // func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
    15  
    16  TEXT	·Syscall(SB),NOSPLIT,$0-56
    17  	BL	runtime·entersyscall(SB)
    18  	MOVD	a1+8(FP), R3
    19  	MOVD	a2+16(FP), R4
    20  	MOVD	a3+24(FP), R5
    21  	MOVD	R0, R6
    22  	MOVD	R0, R7
    23  	MOVD	R0, R8
    24  	MOVD	trap+0(FP), R9	// syscall entry
    25  	SYSCALL R9
    26  	BVC	ok
    27  	MOVD	$-1, R4
    28  	MOVD	R4, r1+32(FP)	// r1
    29  	MOVD	R0, r2+40(FP)	// r2
    30  	MOVD	R3, err+48(FP)	// errno
    31  	BL	runtime·exitsyscall(SB)
    32  	RET
    33  ok:
    34  	MOVD	R3, r1+32(FP)	// r1
    35  	MOVD	R4, r2+40(FP)	// r2
    36  	MOVD	R0, err+48(FP)	// errno
    37  	BL	runtime·exitsyscall(SB)
    38  	RET
    39  
    40  TEXT ·Syscall6(SB),NOSPLIT,$0-80
    41  	BL	runtime·entersyscall(SB)
    42  	MOVD	a1+8(FP), R3
    43  	MOVD	a2+16(FP), R4
    44  	MOVD	a3+24(FP), R5
    45  	MOVD	a4+32(FP), R6
    46  	MOVD	a5+40(FP), R7
    47  	MOVD	a6+48(FP), R8
    48  	MOVD	trap+0(FP), R9	// syscall entry
    49  	SYSCALL R9
    50  	BVC	ok6
    51  	MOVD	$-1, R4
    52  	MOVD	R4, r1+56(FP)	// r1
    53  	MOVD	R0, r2+64(FP)	// r2
    54  	MOVD	R3, err+72(FP)	// errno
    55  	BL	runtime·exitsyscall(SB)
    56  	RET
    57  ok6:
    58  	MOVD	R3, r1+56(FP)	// r1
    59  	MOVD	R4, r2+64(FP)	// r2
    60  	MOVD	R0, err+72(FP)	// errno
    61  	BL	runtime·exitsyscall(SB)
    62  	RET
    63  
    64  TEXT ·RawSyscall(SB),NOSPLIT,$0-56
    65  	MOVD	a1+8(FP), R3
    66  	MOVD	a2+16(FP), R4
    67  	MOVD	a3+24(FP), R5
    68  	MOVD	R0, R6
    69  	MOVD	R0, R7
    70  	MOVD	R0, R8
    71  	MOVD	trap+0(FP), R9	// syscall entry
    72  	SYSCALL R9
    73  	BVC	ok1
    74  	MOVD	$-1, R4
    75  	MOVD	R4, r1+32(FP)	// r1
    76  	MOVD	R0, r2+40(FP)	// r2
    77  	MOVD	R3, err+48(FP)	// errno
    78  	RET
    79  ok1:
    80  	MOVD	R3, r1+32(FP)	// r1
    81  	MOVD	R4, r2+40(FP)	// r2
    82  	MOVD	R0, err+48(FP)	// errno
    83  	RET
    84  
    85  TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
    86  	MOVD	a1+8(FP), R3
    87  	MOVD	a2+16(FP), R4
    88  	MOVD	a3+24(FP), R5
    89  	MOVD	a4+32(FP), R6
    90  	MOVD	a5+40(FP), R7
    91  	MOVD	a6+48(FP), R8
    92  	MOVD	trap+0(FP), R9	// syscall entry
    93  	SYSCALL R9
    94  	BVC	ok2
    95  	MOVD	$-1, R4
    96  	MOVD	R4, r1+56(FP)	// r1
    97  	MOVD	R0, r2+64(FP)	// r2
    98  	MOVD	R3, err+72(FP)	// errno
    99  	RET
   100  ok2:
   101  	MOVD	R3, r1+56(FP)	// r1
   102  	MOVD	R4, r2+64(FP)	// r2
   103  	MOVD	R0, err+72(FP)	// errno
   104  	RET