| khenaidoo | ac63710 | 2019-01-14 15:44:34 -0500 | [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 | |
| khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame^] | 5 | //go:build gc |
| 6 | // +build gc |
| khenaidoo | ac63710 | 2019-01-14 15:44:34 -0500 | [diff] [blame] | 7 | |
| 8 | #include "textflag.h" |
| 9 | |
| 10 | // |
| 11 | // System calls for arm, Linux |
| 12 | // |
| 13 | |
| 14 | // Just jump to package syscall's implementation for all these functions. |
| 15 | // The runtime may know about them. |
| 16 | |
| 17 | TEXT ·Syscall(SB),NOSPLIT,$0-28 |
| 18 | B syscall·Syscall(SB) |
| 19 | |
| 20 | TEXT ·Syscall6(SB),NOSPLIT,$0-40 |
| 21 | B syscall·Syscall6(SB) |
| 22 | |
| 23 | TEXT ·SyscallNoError(SB),NOSPLIT,$0-24 |
| 24 | BL runtime·entersyscall(SB) |
| 25 | MOVW trap+0(FP), R7 |
| 26 | MOVW a1+4(FP), R0 |
| 27 | MOVW a2+8(FP), R1 |
| 28 | MOVW a3+12(FP), R2 |
| 29 | MOVW $0, R3 |
| 30 | MOVW $0, R4 |
| 31 | MOVW $0, R5 |
| 32 | SWI $0 |
| 33 | MOVW R0, r1+16(FP) |
| 34 | MOVW $0, R0 |
| 35 | MOVW R0, r2+20(FP) |
| 36 | BL runtime·exitsyscall(SB) |
| 37 | RET |
| 38 | |
| 39 | TEXT ·RawSyscall(SB),NOSPLIT,$0-28 |
| 40 | B syscall·RawSyscall(SB) |
| 41 | |
| 42 | TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 |
| 43 | B syscall·RawSyscall6(SB) |
| 44 | |
| 45 | TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24 |
| 46 | MOVW trap+0(FP), R7 // syscall entry |
| 47 | MOVW a1+4(FP), R0 |
| 48 | MOVW a2+8(FP), R1 |
| 49 | MOVW a3+12(FP), R2 |
| 50 | SWI $0 |
| 51 | MOVW R0, r1+16(FP) |
| 52 | MOVW $0, R0 |
| 53 | MOVW R0, r2+20(FP) |
| 54 | RET |
| 55 | |
| 56 | TEXT ·seek(SB),NOSPLIT,$0-28 |
| 57 | B syscall·seek(SB) |