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