/* Copyright (C) 1995, 1996 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 Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include /* Please consult the file sysdeps/unix/sysv/linux/arm/sysdep.h for more information about the value -4095 used below.*/ .text ENTRY (syscall) /* Normally encoding the system call number in the instruction is good. But we pay the price here. */ sub sp, sp, $0xc @ get 3 words on the stack orr r0, r0, $0xef000000 @ make up a SWI instruction orr r0, r0, $SWI_BASE str r0, [sp] ldr r0, _reti str r0, [sp, $4] adr r0, _ret str r0, [sp, $8] mov r0, r1 mov r1, r2 mov r2, r3 mov pc, sp _ret: add sp, sp, $0xc RETINSTR(mov, pc, r14) _reti: .word 0xe51ff004 @ ldr pc, [pc, $4] PSEUDO_END (syscall)