diff options
Diffstat (limited to 'src/pkg/syscall/asm_linux_arm.s')
| -rw-r--r-- | src/pkg/syscall/asm_linux_arm.s | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/src/pkg/syscall/asm_linux_arm.s b/src/pkg/syscall/asm_linux_arm.s deleted file mode 100644 index a28bc6cfc..000000000 --- a/src/pkg/syscall/asm_linux_arm.s +++ /dev/null @@ -1,155 +0,0 @@ -// 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. - -#include "../../cmd/ld/textflag.h" - -// -// System calls for arm, Linux -// - -// TODO(kaib): handle error returns - -// func Syscall(syscall uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr); - -TEXT ·Syscall(SB),NOSPLIT,$0-28 - BL runtime·entersyscall(SB) - MOVW 4(SP), R7 - MOVW 8(SP), R0 - MOVW 12(SP), R1 - MOVW 16(SP), R2 - SWI $0 - MOVW $0xfffff001, R1 - CMP R1, R0 - BLS ok - MOVW $-1, R1 - MOVW R1, 20(SP) // r1 - MOVW $0, R2 - MOVW R2, 24(SP) // r2 - RSB $0, R0, R0 - MOVW R0, 28(SP) // errno - BL runtime·exitsyscall(SB) - RET -ok: - MOVW R0, 20(SP) // r1 - MOVW $0, R0 - MOVW R0, 24(SP) // r2 - 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 ·Syscall6(SB),NOSPLIT,$0-40 - 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 $0xfffff001, R6 - CMP R6, R0 - BLS ok6 - MOVW $-1, R1 - MOVW R1, 32(SP) // r1 - MOVW $0, R2 - MOVW R2, 36(SP) // r2 - RSB $0, R0, R0 - MOVW R0, 40(SP) // errno - BL runtime·exitsyscall(SB) - RET -ok6: - MOVW R0, 32(SP) // r1 - MOVW R1, 36(SP) // r2 - MOVW $0, R0 - MOVW R0, 40(SP) // errno - BL runtime·exitsyscall(SB) - RET - -// func RawSyscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr); -// Actually RawSyscall5 but the rest of the code expects it to be named RawSyscall6. -TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 - 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 $0xfffff001, R6 - CMP R6, R0 - BLS ok2 - MOVW $-1, R1 - MOVW R1, 32(SP) // r1 - MOVW $0, R2 - MOVW R2, 36(SP) // r2 - RSB $0, R0, R0 - MOVW R0, 40(SP) // errno - RET -ok2: - MOVW R0, 32(SP) // r1 - MOVW R1, 36(SP) // r2 - MOVW $0, R0 - MOVW R0, 40(SP) // errno - RET - -#define SYS__LLSEEK 140 /* from zsysnum_linux_arm.go */ -// func seek(fd int, offset int64, whence int) (newoffset int64, errno int) -// Implemented in assembly to avoid allocation when -// taking the address of the return value newoffset. -// Underlying system call is -// llseek(int fd, int offhi, int offlo, int64 *result, int whence) -TEXT ·seek(SB),NOSPLIT,$0-32 - BL runtime·entersyscall(SB) - MOVW $SYS__LLSEEK, R7 // syscall entry - MOVW 4(SP), R0 // fd - MOVW 12(SP), R1 // offset-high - MOVW 8(SP), R2 // offset-low - MOVW $20(SP), R3 - MOVW 16(SP), R4 // whence - SWI $0 - MOVW $0xfffff001, R6 - CMP R6, R0 - BLS okseek - MOVW $0, R1 - MOVW R1, 20(SP) - MOVW R1, 24(SP) - RSB $0, R0, R0 - MOVW R0, 28(SP) // errno - BL runtime·exitsyscall(SB) - RET -okseek: - // system call filled in newoffset already - MOVW $0, R0 - MOVW R0, 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 4(SP), R7 // syscall entry - MOVW 8(SP), R0 - MOVW 12(SP), R1 - MOVW 16(SP), R2 - SWI $0 - MOVW $0xfffff001, R1 - CMP R1, R0 - BLS ok1 - MOVW $-1, R1 - MOVW R1, 20(SP) // r1 - MOVW $0, R2 - MOVW R2, 24(SP) // r2 - RSB $0, R0, R0 - MOVW R0, 28(SP) // errno - RET -ok1: - MOVW R0, 20(SP) // r1 - MOVW $0, R0 - MOVW R0, 24(SP) // r2 - MOVW R0, 28(SP) // errno - RET - |