summaryrefslogtreecommitdiffstats
path: root/src/syscall/asm_darwin_arm64.s
diff options
context:
space:
mode:
Diffstat (limited to 'src/syscall/asm_darwin_arm64.s')
-rw-r--r--src/syscall/asm_darwin_arm64.s127
1 files changed, 127 insertions, 0 deletions
diff --git a/src/syscall/asm_darwin_arm64.s b/src/syscall/asm_darwin_arm64.s
new file mode 100644
index 0000000..95b6dc0
--- /dev/null
+++ b/src/syscall/asm_darwin_arm64.s
@@ -0,0 +1,127 @@
+// Copyright 2015 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"
+
+//
+// System call support for ARM64, Darwin
+//
+
+// func Syscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr)
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+ BL runtime·entersyscall(SB)
+ MOVD trap+0(FP), R16
+ MOVD a1+8(FP), R0
+ MOVD a2+16(FP), R1
+ MOVD a3+24(FP), R2
+ SVC $0x80
+ BCC ok
+ MOVD $-1, R1
+ MOVD R1, r1+32(FP) // r1
+ MOVD ZR, r2+40(FP) // r2
+ MOVD R0, err+48(FP) // err
+ BL runtime·exitsyscall(SB)
+ RET
+ok:
+ MOVD R0, r1+32(FP) // r1
+ MOVD R1, r2+40(FP) // r2
+ MOVD ZR, err+48(FP) // err
+ BL runtime·exitsyscall(SB)
+ RET
+
+// func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr)
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+ MOVD trap+0(FP), R16 // syscall entry
+ MOVD a1+8(FP), R0
+ MOVD a2+16(FP), R1
+ MOVD a3+24(FP), R2
+ SVC $0x80
+ BCC ok
+ MOVD $-1, R1
+ MOVD R1, r1+32(FP) // r1
+ MOVD ZR, r2+40(FP) // r2
+ MOVD R0, err+48(FP) // err
+ RET
+ok:
+ MOVD R0, r1+32(FP) // r1
+ MOVD R1, r2+40(FP) // r2
+ MOVD ZR, err+48(FP) // err
+ RET
+
+// func Syscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+ BL runtime·entersyscall(SB)
+ MOVD trap+0(FP), R16 // syscall entry
+ MOVD a1+8(FP), R0
+ MOVD a2+16(FP), R1
+ MOVD a3+24(FP), R2
+ MOVD a4+32(FP), R3
+ MOVD a5+40(FP), R4
+ MOVD a6+48(FP), R5
+ SVC $0x80
+ BCC ok
+ MOVD $-1, R1
+ MOVD R1, r1+56(FP) // r1
+ MOVD ZR, r2+64(FP) // r2
+ MOVD R0, err+72(FP) // err
+ BL runtime·exitsyscall(SB)
+ RET
+ok:
+ MOVD R0, r1+56(FP) // r1
+ MOVD R1, r2+64(FP) // r2
+ MOVD ZR, err+72(FP) // err
+ BL runtime·exitsyscall(SB)
+ RET
+
+// func RawSyscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+ MOVD trap+0(FP), R16 // syscall entry
+ MOVD a1+8(FP), R0
+ MOVD a2+16(FP), R1
+ MOVD a3+24(FP), R2
+ MOVD a4+32(FP), R3
+ MOVD a5+40(FP), R4
+ MOVD a6+48(FP), R5
+ SVC $0x80
+ BCC ok
+ MOVD $-1, R1
+ MOVD R1, r1+56(FP) // r1
+ MOVD ZR, r2+64(FP) // r2
+ MOVD R0, err+72(FP) // err
+ RET
+ok:
+ MOVD R0, r1+56(FP) // r1
+ MOVD R1, r2+64(FP) // r2
+ MOVD ZR, R0
+ MOVD R0, err+72(FP) // err
+ RET
+
+// Actually Syscall7
+TEXT ·Syscall9(SB),NOSPLIT,$0-104
+ BL runtime·entersyscall(SB)
+ MOVD num+0(FP), R16 // syscall entry
+ MOVD a1+8(FP), R0
+ MOVD a2+16(FP), R1
+ MOVD a3+24(FP), R2
+ MOVD a4+32(FP), R3
+ MOVD a5+40(FP), R4
+ MOVD a6+48(FP), R5
+ MOVD a7+56(FP), R6
+ //MOVD a8+64(FP), R7
+ //MOVD a9+72(FP), R8
+ SVC $0x80
+ BCC ok
+ MOVD $-1, R1
+ MOVD R1, r1+80(FP) // r1
+ MOVD ZR, r2+88(FP) // r2
+ MOVD R0, err+96(FP) // err
+ BL runtime·exitsyscall(SB)
+ RET
+ok:
+ MOVD R0, r1+80(FP) // r1
+ MOVD R1, r2+88(FP) // r2
+ MOVD ZR, err+96(FP) // err
+ BL runtime·exitsyscall(SB)
+ RET
+