1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// 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.
//go:build linux && (mips || mipsle)
#include "textflag.h"
#include "funcdata.h"
//
// System calls for mips, Linux
//
// func Syscall9(trap trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, err uintptr);
// Actually Syscall8 but the rest of the code expects it to be named Syscall9.
TEXT ·Syscall9(SB),NOSPLIT,$28-52
NO_LOCAL_POINTERS
JAL runtime·entersyscall(SB)
MOVW a1+4(FP), R4
MOVW a2+8(FP), R5
MOVW a3+12(FP), R6
MOVW a4+16(FP), R7
MOVW a5+20(FP), R8
MOVW a6+24(FP), R9
MOVW a7+28(FP), R10
MOVW a8+32(FP), R11
MOVW R8, 16(R29)
MOVW R9, 20(R29)
MOVW R10, 24(R29)
MOVW R11, 28(R29)
MOVW trap+0(FP), R2 // syscall entry
SYSCALL
BEQ R7, ok9
MOVW $-1, R1
MOVW R1, r1+40(FP) // r1
MOVW R0, r2+44(FP) // r2
MOVW R2, err+48(FP) // errno
JAL runtime·exitsyscall(SB)
RET
ok9:
MOVW R2, r1+40(FP) // r1
MOVW R3, r2+44(FP) // r2
MOVW R0, err+48(FP) // errno
JAL runtime·exitsyscall(SB)
RET
// func rawVforkSyscall(trap, a1 uintptr) (r1, err uintptr)
TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-16
MOVW a1+4(FP), R4
MOVW R0, R5
MOVW R0, R6
MOVW trap+0(FP), R2 // syscall entry
SYSCALL
BEQ R7, ok
MOVW $-1, R1
MOVW R1, r1+8(FP) // r1
MOVW R2, err+12(FP) // errno
RET
ok:
MOVW R2, r1+8(FP) // r1
MOVW R0, err+12(FP) // errno
RET
TEXT ·rawSyscallNoError(SB),NOSPLIT,$20-24
MOVW a1+4(FP), R4
MOVW a2+8(FP), R5
MOVW a3+12(FP), R6
MOVW trap+0(FP), R2 // syscall entry
SYSCALL
MOVW R2, r1+16(FP) // r1
MOVW R3, r2+20(FP) // r2
RET
|
