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Diffstat (limited to '')
| -rw-r--r-- | src/syscall/asm_freebsd_arm64.s | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/syscall/asm_freebsd_arm64.s b/src/syscall/asm_freebsd_arm64.s new file mode 100644 index 0000000..b032ce7 --- /dev/null +++ b/src/syscall/asm_freebsd_arm64.s @@ -0,0 +1,128 @@ +// Copyright 2019 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, FreeBSD +// + +#define SYS_syscall 0 + +// 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), R8 // syscall entry + MOVD a1+8(FP), R0 + MOVD a2+16(FP), R1 + MOVD a3+24(FP), R2 + SVC $SYS_syscall + BCC ok + MOVD $-1, R1 + MOVD R1, r1+32(FP) + MOVD ZR, r2+40(FP) + MOVD R0, err+48(FP) + BL runtime·exitsyscall<ABIInternal>(SB) + RET +ok: + MOVD R0, r1+32(FP) + MOVD R1, r2+40(FP) + MOVD ZR, err+48(FP) + 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), R8 // syscall entry + MOVD a1+8(FP), R0 + MOVD a2+16(FP), R1 + MOVD a3+24(FP), R2 + SVC $SYS_syscall + BCC ok + MOVD $-1, R1 + MOVD R1, r1+32(FP) + MOVD ZR, r2+40(FP) + MOVD R0, err+48(FP) + RET +ok: + MOVD R0, r1+32(FP) + MOVD R1, r2+40(FP) + MOVD ZR, err+48(FP) + 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), R8 // 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 $SYS_syscall + BCC ok + MOVD $-1, R1 + MOVD R1, r1+56(FP) + MOVD ZR, r2+64(FP) + MOVD R0, err+72(FP) + BL runtime·exitsyscall<ABIInternal>(SB) + RET +ok: + MOVD R0, r1+56(FP) + MOVD R1, r2+64(FP) + MOVD ZR, err+72(FP) + 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), R8 // 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 $SYS_syscall + BCC ok + MOVD $-1, R1 + MOVD R1, r1+56(FP) + MOVD ZR, r2+64(FP) + MOVD R0, err+72(FP) + RET +ok: + MOVD R0, r1+56(FP) + MOVD R1, r2+64(FP) + MOVD ZR, err+72(FP) + RET + +// Actually Syscall7 +// func Syscall9(num uintptr, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, err uintptr) +TEXT ·Syscall9(SB),NOSPLIT,$0-104 + BL runtime·entersyscall<ABIInternal>(SB) + MOVD num+0(FP), R8 // 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 $SYS_syscall + BCC ok + MOVD $-1, R1 + MOVD R1, r1+80(FP) + MOVD ZR, r2+88(FP) + MOVD R0, err+96(FP) + BL runtime·exitsyscall<ABIInternal>(SB) + RET +ok: + MOVD R0, r1+80(FP) + MOVD R1, r2+88(FP) + MOVD ZR, err+96(FP) + BL runtime·exitsyscall<ABIInternal>(SB) + RET |