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Text file src/syscall/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// +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);
    15TEXT ·Syscall(SB),NOSPLIT,$0-56
    16	BL	runtime·entersyscall(SB)
    17	MOVD	a1+8(FP), R3
    18	MOVD	a2+16(FP), R4
    19	MOVD	a3+24(FP), R5
    20	MOVD	R0, R6
    21	MOVD	R0, R7
    22	MOVD	R0, R8
    23	MOVD	trap+0(FP), R9	// syscall entry
    24	SYSCALL R9
    25	BVC	ok
    26	MOVD	$-1, R4
    27	MOVD	R4, r1+32(FP)	// r1
    28	MOVD	R0, r2+40(FP)	// r2
    29	MOVD	R3, err+48(FP)	// errno
    30	BL	runtime·exitsyscall(SB)
    31	RET
    32ok:
    33	MOVD	R3, r1+32(FP)	// r1
    34	MOVD	R4, r2+40(FP)	// r2
    35	MOVD	R0, err+48(FP)	// errno
    36	BL	runtime·exitsyscall(SB)
    37	RET
    38
    39TEXT ·Syscall6(SB),NOSPLIT,$0-80
    40	BL	runtime·entersyscall(SB)
    41	MOVD	a1+8(FP), R3
    42	MOVD	a2+16(FP), R4
    43	MOVD	a3+24(FP), R5
    44	MOVD	a4+32(FP), R6
    45	MOVD	a5+40(FP), R7
    46	MOVD	a6+48(FP), R8
    47	MOVD	trap+0(FP), R9	// syscall entry
    48	SYSCALL R9
    49	BVC	ok6
    50	MOVD	$-1, R4
    51	MOVD	R4, r1+56(FP)	// r1
    52	MOVD	R0, r2+64(FP)	// r2
    53	MOVD	R3, err+72(FP)	// errno
    54	BL	runtime·exitsyscall(SB)
    55	RET
    56ok6:
    57	MOVD	R3, r1+56(FP)	// r1
    58	MOVD	R4, r2+64(FP)	// r2
    59	MOVD	R0, err+72(FP)	// errno
    60	BL	runtime·exitsyscall(SB)
    61	RET
    62
    63TEXT ·RawSyscall(SB),NOSPLIT,$0-56
    64	MOVD	a1+8(FP), R3
    65	MOVD	a2+16(FP), R4
    66	MOVD	a3+24(FP), R5
    67	MOVD	R0, R6
    68	MOVD	R0, R7
    69	MOVD	R0, R8
    70	MOVD	trap+0(FP), R9	// syscall entry
    71	SYSCALL R9
    72	BVC	ok1
    73	MOVD	$-1, R4
    74	MOVD	R4, r1+32(FP)	// r1
    75	MOVD	R0, r2+40(FP)	// r2
    76	MOVD	R3, err+48(FP)	// errno
    77	RET
    78ok1:
    79	MOVD	R3, r1+32(FP)	// r1
    80	MOVD	R4, r2+40(FP)	// r2
    81	MOVD	R0, err+48(FP)	// errno
    82	RET
    83
    84TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
    85	MOVD	a1+8(FP), R3
    86	MOVD	a2+16(FP), R4
    87	MOVD	a3+24(FP), R5
    88	MOVD	a4+32(FP), R6
    89	MOVD	a5+40(FP), R7
    90	MOVD	a6+48(FP), R8
    91	MOVD	trap+0(FP), R9	// syscall entry
    92	SYSCALL R9
    93	BVC	ok2
    94	MOVD	$-1, R4
    95	MOVD	R4, r1+56(FP)	// r1
    96	MOVD	R0, r2+64(FP)	// r2
    97	MOVD	R3, err+72(FP)	// errno
    98	RET
    99ok2:
   100	MOVD	R3, r1+56(FP)	// r1
   101	MOVD	R4, r2+64(FP)	// r2
   102	MOVD	R0, err+72(FP)	// errno
   103	RET
   104
   105TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
   106	MOVD	a1+8(FP), R3
   107	MOVD	a2+16(FP), R4
   108	MOVD	a3+24(FP), R5
   109	MOVD	R0, R6
   110	MOVD	R0, R7
   111	MOVD	R0, R8
   112	MOVD	trap+0(FP), R9	// syscall entry
   113	SYSCALL R9
   114	MOVD	R3, r1+32(FP)
   115	MOVD	R4, r2+40(FP)
   116	RET

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