| /* Copyright (C) 2005-2014 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) |
