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-rw-r--r--src/syscall/asm_linux_mipsx.s74
1 files changed, 74 insertions, 0 deletions
diff --git a/src/syscall/asm_linux_mipsx.s b/src/syscall/asm_linux_mipsx.s
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+++ b/src/syscall/asm_linux_mipsx.s
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+// 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
+ MOVW R0, R3 // reset R3 to zero as 1-ret SYSCALL keeps it
+ 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, a2 uintptr) (r1, err uintptr)
+TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-20
+ MOVW a1+4(FP), R4
+ MOVW a2+8(FP), R5
+ MOVW R0, R6
+ MOVW trap+0(FP), R2 // syscall entry
+ SYSCALL
+ BEQ R7, ok
+ MOVW $-1, R1
+ MOVW R1, r1+12(FP) // r1
+ MOVW R2, err+16(FP) // errno
+ RET
+ok:
+ MOVW R2, r1+12(FP) // r1
+ MOVW R0, err+16(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
+ MOVW R0, R3 // reset R3 to zero as 1-ret SYSCALL keeps it
+ SYSCALL
+ MOVW R2, r1+16(FP) // r1
+ MOVW R3, r2+20(FP) // r2
+ RET