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-rw-r--r--src/syscall/asm_linux_mips64x.s45
1 files changed, 45 insertions, 0 deletions
diff --git a/src/syscall/asm_linux_mips64x.s b/src/syscall/asm_linux_mips64x.s
new file mode 100644
index 0000000..1784e3a
--- /dev/null
+++ b/src/syscall/asm_linux_mips64x.s
@@ -0,0 +1,45 @@
+// Copyright 2014 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 && (mips64 || mips64le)
+
+#include "textflag.h"
+
+//
+// System calls for mips64, Linux
+//
+
+// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
+TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-48
+ MOVV a1+8(FP), R4
+ MOVV a2+16(FP), R5
+ MOVV a3+24(FP), R6
+ MOVV R0, R7
+ MOVV R0, R8
+ MOVV R0, R9
+ MOVV trap+0(FP), R2 // syscall entry
+ SYSCALL
+ BEQ R7, ok
+ MOVV $-1, R1
+ MOVV R1, r1+32(FP) // r1
+ MOVV R2, err+40(FP) // errno
+ RET
+ok:
+ MOVV R2, r1+32(FP) // r1
+ MOVV R0, err+40(FP) // errno
+ RET
+
+TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
+ MOVV a1+8(FP), R4
+ MOVV a2+16(FP), R5
+ MOVV a3+24(FP), R6
+ MOVV R0, R7
+ MOVV R0, R8
+ MOVV R0, R9
+ MOVV trap+0(FP), R2 // syscall entry
+ MOVV R0, R3 // reset R3 to zero as 1-ret SYSCALL keeps it
+ SYSCALL
+ MOVV R2, r1+32(FP) // r1
+ MOVV R3, r2+40(FP) // r2
+ RET