1// Copyright 2016 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 && (mips || mipsle)
6
7#include "textflag.h"
8#include "funcdata.h"
9
10//
11// System calls for mips, Linux
12//
13
14// func Syscall9(trap trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, err uintptr);
15// Actually Syscall8 but the rest of the code expects it to be named Syscall9.
16TEXT ·Syscall9(SB),NOSPLIT,$28-52
17	NO_LOCAL_POINTERS
18	JAL	runtime·entersyscall(SB)
19	MOVW	a1+4(FP), R4
20	MOVW	a2+8(FP), R5
21	MOVW	a3+12(FP), R6
22	MOVW	a4+16(FP), R7
23	MOVW	a5+20(FP), R8
24	MOVW	a6+24(FP), R9
25	MOVW	a7+28(FP), R10
26	MOVW	a8+32(FP), R11
27	MOVW	R8, 16(R29)
28	MOVW	R9, 20(R29)
29	MOVW	R10, 24(R29)
30	MOVW	R11, 28(R29)
31	MOVW	trap+0(FP), R2	// syscall entry
32	MOVW	R0, R3	// reset R3 to zero as 1-ret SYSCALL keeps it
33	SYSCALL
34	BEQ	R7, ok9
35	MOVW	$-1, R1
36	MOVW	R1, r1+40(FP)	// r1
37	MOVW	R0, r2+44(FP)	// r2
38	MOVW	R2, err+48(FP)	// errno
39	JAL	runtime·exitsyscall(SB)
40	RET
41ok9:
42	MOVW	R2, r1+40(FP)	// r1
43	MOVW	R3, r2+44(FP)	// r2
44	MOVW	R0, err+48(FP)	// errno
45	JAL	runtime·exitsyscall(SB)
46	RET
47
48// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
49TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-24
50	MOVW	a1+4(FP), R4
51	MOVW	a2+8(FP), R5
52	MOVW	a3+12(FP), R6
53	MOVW	trap+0(FP), R2	// syscall entry
54	SYSCALL
55	BEQ	R7, ok
56	MOVW	$-1, R1
57	MOVW	R1, r1+16(FP)	// r1
58	MOVW	R2, err+20(FP)	// errno
59	RET
60ok:
61	MOVW	R2, r1+16(FP)	// r1
62	MOVW	R0, err+20(FP)	// errno
63	RET
64
65TEXT ·rawSyscallNoError(SB),NOSPLIT,$20-24
66	MOVW	a1+4(FP), R4
67	MOVW	a2+8(FP), R5
68	MOVW	a3+12(FP), R6
69	MOVW	trap+0(FP), R2	// syscall entry
70	MOVW	R0, R3	// reset R3 to zero as 1-ret SYSCALL keeps it
71	SYSCALL
72	MOVW	R2, r1+16(FP)	// r1
73	MOVW	R3, r2+20(FP)	// r2
74	RET
75