summaryrefslogtreecommitdiffstats
path: root/src/syscall/asm_darwin_amd64.s
diff options
context:
space:
mode:
Diffstat (limited to 'src/syscall/asm_darwin_amd64.s')
-rw-r--r--src/syscall/asm_darwin_amd64.s134
1 files changed, 134 insertions, 0 deletions
diff --git a/src/syscall/asm_darwin_amd64.s b/src/syscall/asm_darwin_amd64.s
new file mode 100644
index 0000000..77b58e0
--- /dev/null
+++ b/src/syscall/asm_darwin_amd64.s
@@ -0,0 +1,134 @@
+// Copyright 2009 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"
+#include "funcdata.h"
+
+//
+// System call support for AMD64, Darwin
+//
+
+// Trap # in AX, args in DI SI DX, return in AX DX
+
+// func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno);
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+ CALL runtime·entersyscall<ABIInternal>(SB)
+ MOVQ a1+8(FP), DI
+ MOVQ a2+16(FP), SI
+ MOVQ a3+24(FP), DX
+ MOVQ trap+0(FP), AX // syscall entry
+ ADDQ $0x2000000, AX
+ SYSCALL
+ JCC ok
+ MOVQ $-1, r1+32(FP)
+ MOVQ $0, r2+40(FP)
+ MOVQ AX, err+48(FP)
+ CALL runtime·exitsyscall<ABIInternal>(SB)
+ RET
+ok:
+ MOVQ AX, r1+32(FP)
+ MOVQ DX, r2+40(FP)
+ MOVQ $0, err+48(FP)
+ CALL runtime·exitsyscall<ABIInternal>(SB)
+ RET
+
+// func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno);
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+ CALL runtime·entersyscall<ABIInternal>(SB)
+ MOVQ a1+8(FP), DI
+ MOVQ a2+16(FP), SI
+ MOVQ a3+24(FP), DX
+ MOVQ a4+32(FP), R10
+ MOVQ a5+40(FP), R8
+ MOVQ a6+48(FP), R9
+ MOVQ trap+0(FP), AX // syscall entry
+ ADDQ $0x2000000, AX
+ SYSCALL
+ JCC ok6
+ MOVQ $-1, r1+56(FP)
+ MOVQ $0, r2+64(FP)
+ MOVQ AX, err+72(FP)
+ CALL runtime·exitsyscall<ABIInternal>(SB)
+ RET
+ok6:
+ MOVQ AX, r1+56(FP)
+ MOVQ DX, r2+64(FP)
+ MOVQ $0, err+72(FP)
+ CALL runtime·exitsyscall<ABIInternal>(SB)
+ RET
+
+// func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno)
+TEXT ·Syscall9(SB),NOSPLIT,$0-104
+ CALL runtime·entersyscall<ABIInternal>(SB)
+ MOVQ trap+0(FP), AX // syscall entry
+ MOVQ a1+8(FP), DI
+ MOVQ a2+16(FP), SI
+ MOVQ a3+24(FP), DX
+ MOVQ a4+32(FP), R10
+ MOVQ a5+40(FP), R8
+ MOVQ a6+48(FP), R9
+ MOVQ a7+56(FP), R11
+ MOVQ a8+64(FP), R12
+ MOVQ a9+72(FP), R13
+ SUBQ $32, SP
+ MOVQ R11, 8(SP)
+ MOVQ R12, 16(SP)
+ MOVQ R13, 24(SP)
+ ADDQ $0x2000000, AX
+ SYSCALL
+ JCC ok9
+ ADDQ $32, SP
+ MOVQ $-1, r1+80(FP)
+ MOVQ $0, r2+88(FP)
+ MOVQ AX, err+96(FP)
+ CALL runtime·exitsyscall<ABIInternal>(SB)
+ RET
+ok9:
+ ADDQ $32, SP
+ MOVQ AX, r1+80(FP)
+ MOVQ DX, r2+88(FP)
+ MOVQ $0, err+96(FP)
+ CALL runtime·exitsyscall<ABIInternal>(SB)
+ RET
+
+// func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+ MOVQ a1+8(FP), DI
+ MOVQ a2+16(FP), SI
+ MOVQ a3+24(FP), DX
+ MOVQ trap+0(FP), AX // syscall entry
+ ADDQ $0x2000000, AX
+ SYSCALL
+ JCC ok1
+ MOVQ $-1, r1+32(FP)
+ MOVQ $0, r2+40(FP)
+ MOVQ AX, err+48(FP)
+ RET
+ok1:
+ MOVQ AX, r1+32(FP)
+ MOVQ DX, r2+40(FP)
+ MOVQ $0, err+48(FP)
+ RET
+
+// func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+ MOVQ a1+8(FP), DI
+ MOVQ a2+16(FP), SI
+ MOVQ a3+24(FP), DX
+ MOVQ a4+32(FP), R10
+ MOVQ a5+40(FP), R8
+ MOVQ a6+48(FP), R9
+ MOVQ trap+0(FP), AX // syscall entry
+ ADDQ $0x2000000, AX
+ SYSCALL
+ JCC ok2
+ MOVQ $-1, r1+56(FP)
+ MOVQ $0, r2+64(FP)
+ MOVQ AX, err+72(FP)
+ RET
+ok2:
+ MOVQ AX, r1+56(FP)
+ MOVQ DX, r2+64(FP)
+ MOVQ $0, err+72(FP)
+ RET