| // Copyright 2014 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 ARM, Darwin |
| // |
| |
| // func Syscall(syscall uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr) |
| TEXT ·Syscall(SB),NOSPLIT,$0-28 |
| BL runtime·entersyscall(SB) |
| MOVW syscall+0(FP), R12 |
| MOVW a1+4(FP), R0 |
| MOVW a2+8(FP), R1 |
| MOVW a3+12(FP), R2 |
| SWI $0x80 |
| BCC ok |
| MOVW $-1, R1 |
| MOVW R1, r1+16(FP) // r1 |
| MOVW $0, R2 |
| MOVW R2, r2+20(FP) // r2 |
| MOVW R0, errno+24(FP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| ok: |
| MOVW R0, r1+16(FP) // r1 |
| MOVW R1, r2+20(FP) // r2 |
| MOVW $0, R0 |
| MOVW R0, errno+24(FP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| |
| // func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr) |
| TEXT ·RawSyscall(SB),NOSPLIT,$0-28 |
| MOVW syscall+0(FP), R12 // syscall entry |
| MOVW a1+4(FP), R0 |
| MOVW a2+8(FP), R1 |
| MOVW a3+12(FP), R2 |
| SWI $0x80 |
| BCC ok1 |
| MOVW $-1, R1 |
| MOVW R1, r1+16(FP) // r1 |
| MOVW $0, R2 |
| MOVW R2, r2+20(FP) // r2 |
| MOVW R0, errno+24(FP) // errno |
| RET |
| ok1: |
| MOVW R0, r1+16(FP) // r1 |
| MOVW R1, r2+20(FP) // r2 |
| MOVW $0, R0 |
| MOVW R0, errno+24(FP) // errno |
| RET |
| |
| // func Syscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) |
| TEXT ·Syscall6(SB),NOSPLIT,$0-40 |
| BL runtime·entersyscall(SB) |
| MOVW syscall+0(FP), R12 // syscall entry |
| MOVW a1+4(FP), R0 |
| MOVW a2+8(FP), R1 |
| MOVW a3+12(FP), R2 |
| MOVW a4+16(FP), R3 |
| MOVW a5+20(FP), R4 |
| MOVW a6+24(FP), R5 |
| SWI $0x80 |
| BCC ok6 |
| MOVW $-1, R1 |
| MOVW R1, r1+28(FP) // r1 |
| MOVW $0, R2 |
| MOVW R2, r2+32(FP) // r2 |
| MOVW R0, errno+36(FP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| ok6: |
| MOVW R0, r1+28(FP) // r1 |
| MOVW R1, r2+32(FP) // r2 |
| MOVW $0, R0 |
| MOVW R0, errno+36(FP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| |
| // func RawSyscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) |
| TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 |
| MOVW trap+0(FP), R12 // syscall entry |
| MOVW a1+4(FP), R0 |
| MOVW a2+8(FP), R1 |
| MOVW a3+12(FP), R2 |
| MOVW a4+16(FP), R3 |
| MOVW a5+20(FP), R4 |
| MOVW a6+24(FP), R5 |
| SWI $0x80 |
| BCC ok2 |
| MOVW $-1, R1 |
| MOVW R1, r1+28(FP) // r1 |
| MOVW $0, R2 |
| MOVW R2, r2+32(FP) // r2 |
| MOVW R0, errno+36(FP) // errno |
| RET |
| ok2: |
| MOVW R0, r1+28(FP) // r1 |
| MOVW R1, r2+32(FP) // r2 |
| MOVW $0, R0 |
| MOVW R0, errno+36(FP) // errno |
| RET |
| |
| // Actually Syscall7. |
| TEXT ·Syscall9(SB),NOSPLIT,$0-52 |
| BL runtime·entersyscall(SB) |
| MOVW syscall+0(FP), R12 // syscall entry |
| MOVW a1+4(FP), R0 |
| MOVW a2+8(FP), R1 |
| MOVW a3+12(FP), R2 |
| MOVW a4+16(FP), R3 |
| MOVW a5+20(FP), R4 |
| MOVW a6+24(FP), R5 |
| MOVW a7+28(FP), R6 |
| SWI $0x80 |
| BCC ok9 |
| MOVW $-1, R1 |
| MOVW R1, r1+40(FP) // r1 |
| MOVW $0, R2 |
| MOVW R2, r2+44(FP) // r2 |
| MOVW R0, errno+48(FP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| ok9: |
| MOVW R0, r1+40(FP) // r1 |
| MOVW R1, r2+44(FP) // r2 |
| MOVW $0, R0 |
| MOVW R0, errno+48(FP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
