| // 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 trap+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, err+24(FP) // err | |
| BL runtime·exitsyscall(SB) | |
| RET | |
| ok: | |
| MOVW R0, r1+16(FP) // r1 | |
| MOVW R1, r2+20(FP) // r2 | |
| MOVW $0, R0 | |
| MOVW R0, err+24(FP) // err | |
| BL runtime·exitsyscall(SB) | |
| RET | |
| // func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr) | |
| TEXT ·RawSyscall(SB),NOSPLIT,$0-28 | |
| MOVW trap+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, err+24(FP) // err | |
| RET | |
| ok1: | |
| MOVW R0, r1+16(FP) // r1 | |
| MOVW R1, r2+20(FP) // r2 | |
| MOVW $0, R0 | |
| MOVW R0, err+24(FP) // err | |
| 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 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 ok6 | |
| MOVW $-1, R1 | |
| MOVW R1, r1+28(FP) // r1 | |
| MOVW $0, R2 | |
| MOVW R2, r2+32(FP) // r2 | |
| MOVW R0, err+36(FP) // err | |
| BL runtime·exitsyscall(SB) | |
| RET | |
| ok6: | |
| MOVW R0, r1+28(FP) // r1 | |
| MOVW R1, r2+32(FP) // r2 | |
| MOVW $0, R0 | |
| MOVW R0, err+36(FP) // err | |
| 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, err+36(FP) // err | |
| RET | |
| ok2: | |
| MOVW R0, r1+28(FP) // r1 | |
| MOVW R1, r2+32(FP) // r2 | |
| MOVW $0, R0 | |
| MOVW R0, err+36(FP) // err | |
| RET | |
| // Actually Syscall7. | |
| TEXT ·Syscall9(SB),NOSPLIT,$0-52 | |
| BL runtime·entersyscall(SB) | |
| MOVW num+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, err+48(FP) // err | |
| BL runtime·exitsyscall(SB) | |
| RET | |
| ok9: | |
| MOVW R0, r1+40(FP) // r1 | |
| MOVW R1, r2+44(FP) // r2 | |
| MOVW $0, R0 | |
| MOVW R0, err+48(FP) // err | |
| BL runtime·exitsyscall(SB) | |
| RET |