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Diffstat (limited to 'src/syscall/asm_darwin_arm64.s')
| -rw-r--r-- | src/syscall/asm_darwin_arm64.s | 127 |
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..22e0766 --- /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<ABIInternal>(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<ABIInternal>(SB) + RET +ok: + MOVD R0, r1+32(FP) // r1 + MOVD R1, r2+40(FP) // r2 + MOVD ZR, err+48(FP) // err + BL runtime·exitsyscall<ABIInternal>(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<ABIInternal>(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<ABIInternal>(SB) + RET +ok: + MOVD R0, r1+56(FP) // r1 + MOVD R1, r2+64(FP) // r2 + MOVD ZR, err+72(FP) // err + BL runtime·exitsyscall<ABIInternal>(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<ABIInternal>(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<ABIInternal>(SB) + RET +ok: + MOVD R0, r1+80(FP) // r1 + MOVD R1, r2+88(FP) // r2 + MOVD ZR, err+96(FP) // err + BL runtime·exitsyscall<ABIInternal>(SB) + RET + |