mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 08:40:07 +00:00
49 lines
1.4 KiB
ArmAsm
49 lines
1.4 KiB
ArmAsm
/* Copyright (C) 2005-2015 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library. If not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdep.h>
|
|
|
|
/* In the EABI syscall interface, we don't need a special syscall to
|
|
implement syscall(). It won't work reliably with 64-bit arguments
|
|
(but that is true on many modern platforms). */
|
|
|
|
ENTRY (syscall)
|
|
mov ip, sp
|
|
push {r4, r5, r6, r7}
|
|
cfi_adjust_cfa_offset (16)
|
|
cfi_rel_offset (r4, 0)
|
|
cfi_rel_offset (r5, 4)
|
|
cfi_rel_offset (r6, 8)
|
|
cfi_rel_offset (r7, 12)
|
|
mov r7, r0
|
|
mov r0, r1
|
|
mov r1, r2
|
|
mov r2, r3
|
|
ldmfd ip, {r3, r4, r5, r6}
|
|
swi 0x0
|
|
pop {r4, r5, r6, r7}
|
|
cfi_adjust_cfa_offset (-16)
|
|
cfi_restore (r4)
|
|
cfi_restore (r5)
|
|
cfi_restore (r6)
|
|
cfi_restore (r7)
|
|
cmn r0, #4096
|
|
it cc
|
|
RETINSTR(cc, lr)
|
|
b PLTJMP(syscall_error)
|
|
PSEUDO_END (syscall)
|