github.com/twelsh-aw/go/src@v0.0.0-20230516233729-a56fe86a7c81/syscall/asm_linux_arm64.s (about) 1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 #include "textflag.h" 6 7 // func rawVforkSyscall(trap, a1, a2 uintptr) (r1, err uintptr) 8 TEXT ·rawVforkSyscall(SB),NOSPLIT,$0-40 9 MOVD a1+8(FP), R0 10 MOVD a2+16(FP), R1 11 MOVD $0, R2 12 MOVD $0, R3 13 MOVD $0, R4 14 MOVD $0, R5 15 MOVD trap+0(FP), R8 // syscall entry 16 SVC 17 CMN $4095, R0 18 BCC ok 19 MOVD $-1, R4 20 MOVD R4, r1+24(FP) // r1 21 NEG R0, R0 22 MOVD R0, err+32(FP) // errno 23 RET 24 ok: 25 MOVD R0, r1+24(FP) // r1 26 MOVD ZR, err+32(FP) // errno 27 RET 28 29 // func rawSyscallNoError(trap uintptr, a1, a2, a3 uintptr) (r1, r2 uintptr); 30 TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48 31 MOVD a1+8(FP), R0 32 MOVD a2+16(FP), R1 33 MOVD a3+24(FP), R2 34 MOVD $0, R3 35 MOVD $0, R4 36 MOVD $0, R5 37 MOVD trap+0(FP), R8 // syscall entry 38 SVC 39 MOVD R0, r1+32(FP) 40 MOVD R1, r2+40(FP) 41 RET