| // Copyright 2009 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. |
| |
| // |
| // System calls for arm, Linux |
| // |
| |
| // TODO(kaib): handle error returns |
| |
| // func Syscall(syscall uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr); |
| |
| TEXT syscall·Syscall(SB),7,$0 |
| BL runtime·entersyscall(SB) |
| MOVW 4(SP), R7 |
| MOVW 8(SP), R0 |
| MOVW 12(SP), R1 |
| MOVW 16(SP), R2 |
| SWI $0 |
| MOVW R0, 20(SP) // r1 |
| MOVW R1, 24(SP) // r2 |
| MOVW $0, R0 |
| MOVW R0, 28(SP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| |
| // func Syscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr); |
| // Actually Syscall5 but the rest of the code expects it to be named Syscall6. |
| TEXT syscall·Syscall6(SB),7,$0 |
| BL runtime·entersyscall(SB) |
| MOVW 4(SP), R7 // 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 $0 |
| MOVW R0, 32(SP) // r1 |
| MOVW R1, 36(SP) // r2 |
| MOVW $0, R0 |
| MOVW R0, 40(SP) // errno |
| BL runtime·exitsyscall(SB) |
| RET |
| |
| // func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr); |
| TEXT syscall·RawSyscall(SB),7,$0 |
| MOVW 4(SP), R7 // syscall entry |
| MOVW 8(SP), R0 |
| MOVW 12(SP), R1 |
| MOVW 16(SP), R2 |
| SWI $0 |
| MOVW R0, 20(SP) // r1 |
| MOVW R1, 24(SP) // r2 |
| MOVW $0, R0 |
| MOVW R0, 28(SP) // errno |
| RET |
