| // 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,$0-32 |
| BL runtime·entersyscall(SB) |
| MOVW 4(SP), R12 |
| MOVW 8(SP), R0 |
| MOVW 12(SP), R1 |
| MOVW 16(SP), R2 |
| SWI $0x80 |
| BCC ok |
| MOVW $-1, R1 |
| MOVW R1, 20(SP) // r1 |
| MOVW $0, R2 |
| MOVW R2, 24(SP) // r2 |
| MOVW R0, 28(SP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| ok: |
| MOVW R0, 20(SP) // r1 |
| MOVW R1, 24(SP) // r2 |
| MOVW $0, R0 |
| MOVW R0, 28(SP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| |
| // func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr) |
| TEXT ·RawSyscall(SB),NOSPLIT,$0-32 |
| MOVW 4(SP), R12 // syscall entry |
| MOVW 8(SP), R0 |
| MOVW 12(SP), R1 |
| MOVW 16(SP), R2 |
| SWI $0x80 |
| BCC ok1 |
| MOVW $-1, R1 |
| MOVW R1, 20(SP) // r1 |
| MOVW $0, R2 |
| MOVW R2, 24(SP) // r2 |
| MOVW R0, 28(SP) // errno |
| RET |
| ok1: |
| MOVW R0, 20(SP) // r1 |
| MOVW R1, 24(SP) // r2 |
| MOVW $0, R0 |
| MOVW R0, 28(SP) // errno |
| RET |
| |
| // func Syscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) |
| TEXT ·Syscall6(SB),NOSPLIT,$0-44 |
| BL runtime·entersyscall(SB) |
| MOVW 4(SP), R12 // syscall entry |
| MOVW 8(SP), R0 |
| MOVW 12(SP), R1 |
| MOVW 16(SP), R2 |
| MOVW 20(SP), R3 |
| MOVW 24(SP), R4 |
| MOVW 28(SP), R5 |
| SWI $0x80 |
| BCC ok6 |
| MOVW $-1, R1 |
| MOVW R1, 32(SP) // r1 |
| MOVW $0, R2 |
| MOVW R2, 36(SP) // r2 |
| MOVW R0, 40(SP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| ok6: |
| MOVW R0, 32(SP) // r1 |
| MOVW R1, 36(SP) // r2 |
| MOVW $0, R0 |
| MOVW R0, 40(SP) // 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,$0-44 |
| MOVW 4(SP), R12 // syscall entry |
| MOVW 8(SP), R0 |
| MOVW 12(SP), R1 |
| MOVW 16(SP), R2 |
| MOVW 20(SP), R3 |
| MOVW 24(SP), R4 |
| MOVW 28(SP), R5 |
| SWI $0x80 |
| BCC ok2 |
| MOVW $-1, R1 |
| MOVW R1, 32(SP) // r1 |
| MOVW $0, R2 |
| MOVW R2, 36(SP) // r2 |
| MOVW R0, 40(SP) // errno |
| RET |
| ok2: |
| MOVW R0, 32(SP) // r1 |
| MOVW R1, 36(SP) // r2 |
| MOVW $0, R0 |
| MOVW R0, 40(SP) // errno |
| RET |
| |
| // Actually Syscall7. |
| TEXT ·Syscall9(SB),NOSPLIT,$0-56 |
| BL runtime·entersyscall(SB) |
| MOVW 4(SP), R12 // syscall entry |
| MOVW 8(SP), R0 |
| MOVW 12(SP), R1 |
| MOVW 16(SP), R2 |
| MOVW 20(SP), R3 |
| MOVW 24(SP), R4 |
| MOVW 28(SP), R5 |
| MOVW 32(SP), R6 |
| SWI $0x80 |
| BCC ok9 |
| MOVW $-1, R1 |
| MOVW R1, 44(SP) // r1 |
| MOVW $0, R2 |
| MOVW R2, 48(SP) // r2 |
| MOVW R0, 52(SP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| ok9: |
| MOVW R0, 44(SP) // r1 |
| MOVW R1, 48(SP) // r2 |
| MOVW $0, R0 |
| MOVW R0, 52(SP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| |
