| Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [diff] [blame^] | 1 | // Copyright 2009 The Go Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | // +build !gccgo |
| 6 | |
| 7 | #include "textflag.h" |
| 8 | |
| 9 | // |
| 10 | // System calls for arm, Linux |
| 11 | // |
| 12 | |
| 13 | // Just jump to package syscall's implementation for all these functions. |
| 14 | // The runtime may know about them. |
| 15 | |
| 16 | TEXT ·Syscall(SB),NOSPLIT,$0-28 |
| 17 | B syscall·Syscall(SB) |
| 18 | |
| 19 | TEXT ·Syscall6(SB),NOSPLIT,$0-40 |
| 20 | B syscall·Syscall6(SB) |
| 21 | |
| 22 | TEXT ·SyscallNoError(SB),NOSPLIT,$0-24 |
| 23 | BL runtime·entersyscall(SB) |
| 24 | MOVW trap+0(FP), R7 |
| 25 | MOVW a1+4(FP), R0 |
| 26 | MOVW a2+8(FP), R1 |
| 27 | MOVW a3+12(FP), R2 |
| 28 | MOVW $0, R3 |
| 29 | MOVW $0, R4 |
| 30 | MOVW $0, R5 |
| 31 | SWI $0 |
| 32 | MOVW R0, r1+16(FP) |
| 33 | MOVW $0, R0 |
| 34 | MOVW R0, r2+20(FP) |
| 35 | BL runtime·exitsyscall(SB) |
| 36 | RET |
| 37 | |
| 38 | TEXT ·RawSyscall(SB),NOSPLIT,$0-28 |
| 39 | B syscall·RawSyscall(SB) |
| 40 | |
| 41 | TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 |
| 42 | B syscall·RawSyscall6(SB) |
| 43 | |
| 44 | TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24 |
| 45 | MOVW trap+0(FP), R7 // syscall entry |
| 46 | MOVW a1+4(FP), R0 |
| 47 | MOVW a2+8(FP), R1 |
| 48 | MOVW a3+12(FP), R2 |
| 49 | SWI $0 |
| 50 | MOVW R0, r1+16(FP) |
| 51 | MOVW $0, R0 |
| 52 | MOVW R0, r2+20(FP) |
| 53 | RET |
| 54 | |
| 55 | TEXT ·seek(SB),NOSPLIT,$0-28 |
| 56 | B syscall·seek(SB) |