From 2607bee41906da4f47d98a92749c11533396838c Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sun, 29 Jan 2006 21:02:08 +0000 Subject: Patch by Joseph S. Myers to add support for ARM EABI --- libc/sysdeps/linux/arm/syscall-eabi.S | 43 +++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 libc/sysdeps/linux/arm/syscall-eabi.S (limited to 'libc/sysdeps/linux/arm/syscall-eabi.S') diff --git a/libc/sysdeps/linux/arm/syscall-eabi.S b/libc/sysdeps/linux/arm/syscall-eabi.S new file mode 100644 index 000000000..761051754 --- /dev/null +++ b/libc/sysdeps/linux/arm/syscall-eabi.S @@ -0,0 +1,43 @@ +/* Copyright (C) 2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include + +/* 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). */ + +.text +.global syscall +.type syscall,%function +.align 4 +syscall: + mov ip, sp + stmfd sp!, {r4, r5, r6, r7} + mov r7, r0 + mov r0, r1 + mov r1, r2 + mov r2, r3 + ldmfd ip, {r3, r4, r5, r6} + swi 0x0 + ldmfd sp!, {r4, r5, r6, r7} + cmn r0, #4096 + movcc pc, lr + b __syscall_error + +.size syscall,.-syscall -- cgit v1.2.3