mirror of https://go.googlesource.com/go
94 lines
2.2 KiB
ArmAsm
94 lines
2.2 KiB
ArmAsm
// Copyright 2016 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
#include "textflag.h"
|
|
|
|
//
|
|
// System calls for s390x, Linux
|
|
//
|
|
|
|
// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
|
|
TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-48
|
|
MOVD a1+8(FP), R2
|
|
MOVD a2+16(FP), R3
|
|
MOVD a3+24(FP), R4
|
|
MOVD $0, R5
|
|
MOVD $0, R6
|
|
MOVD $0, R7
|
|
MOVD trap+0(FP), R1 // syscall entry
|
|
SYSCALL
|
|
MOVD $0xfffffffffffff001, R8
|
|
CMPUBLT R2, R8, ok2
|
|
MOVD $-1, r1+32(FP)
|
|
NEG R2, R2
|
|
MOVD R2, err+40(FP) // errno
|
|
RET
|
|
ok2:
|
|
MOVD R2, r1+32(FP)
|
|
MOVD $0, err+40(FP) // errno
|
|
RET
|
|
|
|
// func rawSyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr)
|
|
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
|
|
MOVD a1+8(FP), R2
|
|
MOVD a2+16(FP), R3
|
|
MOVD a3+24(FP), R4
|
|
MOVD $0, R5
|
|
MOVD $0, R6
|
|
MOVD $0, R7
|
|
MOVD trap+0(FP), R1 // syscall entry
|
|
SYSCALL
|
|
MOVD R2, r1+32(FP)
|
|
MOVD R3, r2+40(FP)
|
|
RET
|
|
|
|
#define SYS_SOCKETCALL 102 /* from zsysnum_linux_s390x.go */
|
|
|
|
// func socketcall(call int, a0, a1, a2, a3, a4, a5 uintptr) (n int, err int)
|
|
// Kernel interface gets call sub-number and pointer to a0.
|
|
TEXT ·socketcall(SB),NOSPLIT,$0-72
|
|
BL runtime·entersyscall(SB)
|
|
MOVD $SYS_SOCKETCALL, R1 // syscall entry
|
|
MOVD call+0(FP), R2 // socket call number
|
|
MOVD $a0+8(FP), R3 // pointer to call arguments
|
|
MOVD $0, R4
|
|
MOVD $0, R5
|
|
MOVD $0, R6
|
|
MOVD $0, R7
|
|
SYSCALL
|
|
MOVD $0xfffffffffffff001, R8
|
|
CMPUBLT R2, R8, oksock
|
|
MOVD $-1, n+56(FP)
|
|
NEG R2, R2
|
|
MOVD R2, err+64(FP)
|
|
BL runtime·exitsyscall(SB)
|
|
RET
|
|
oksock:
|
|
MOVD R2, n+56(FP)
|
|
MOVD $0, err+64(FP)
|
|
CALL runtime·exitsyscall(SB)
|
|
RET
|
|
|
|
// func rawsocketcall(call int, a0, a1, a2, a3, a4, a5 uintptr) (n int, err int)
|
|
// Kernel interface gets call sub-number and pointer to a0.
|
|
TEXT ·rawsocketcall(SB),NOSPLIT,$0-72
|
|
MOVD $SYS_SOCKETCALL, R1 // syscall entry
|
|
MOVD call+0(FP), R2 // socket call number
|
|
MOVD $a0+8(FP), R3 // pointer to call arguments
|
|
MOVD $0, R4
|
|
MOVD $0, R5
|
|
MOVD $0, R6
|
|
MOVD $0, R7
|
|
SYSCALL
|
|
MOVD $0xfffffffffffff001, R8
|
|
CMPUBLT R2, R8, oksock1
|
|
MOVD $-1, n+56(FP)
|
|
NEG R2, R2
|
|
MOVD R2, err+64(FP)
|
|
RET
|
|
oksock1:
|
|
MOVD R2, n+56(FP)
|
|
MOVD $0, err+64(FP)
|
|
RET
|