From a334319f6530564d22e775935d9c91663623a1b4 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 22 Dec 2004 20:10:10 +0000 Subject: (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. --- sysdeps/unix/sysv/i386/signal.S | 31 +++++++++++++++++++++++++++++++ sysdeps/unix/sysv/i386/sigreturn.S | 27 +++++++++++++++++++++++++++ 2 files changed, 58 insertions(+) create mode 100644 sysdeps/unix/sysv/i386/signal.S create mode 100644 sysdeps/unix/sysv/i386/sigreturn.S (limited to 'sysdeps/unix/sysv/i386') diff --git a/sysdeps/unix/sysv/i386/signal.S b/sysdeps/unix/sysv/i386/signal.S new file mode 100644 index 0000000000..af51bc5182 --- /dev/null +++ b/sysdeps/unix/sysv/i386/signal.S @@ -0,0 +1,31 @@ +/* Copyright (C) 1992, 1997 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 + +/* This is just a standard system call, except we need to load %edx + with the address of the `__sigreturn' function. */ + + .globl syscall_error + .globl C_SYMBOL_NAME(__sigreturn) +ENTRY (signal) + lea SYS_signal, %eax + lea C_SYMBOL_NAME(__sigreturn), %edx + .byte 0x9a, 0, 0, 0, 0, 7, 0 /* lcall $7, $0 -- GAS bug. */ + jb syscall_error + ret diff --git a/sysdeps/unix/sysv/i386/sigreturn.S b/sysdeps/unix/sysv/i386/sigreturn.S new file mode 100644 index 0000000000..edf4418c5b --- /dev/null +++ b/sysdeps/unix/sysv/i386/sigreturn.S @@ -0,0 +1,27 @@ +/* Copyright (C) 1994, 1995, 1997 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 + +.text +ENTRY (__sigreturn) + addl $4, %esp /* Pop the return PC. */ + lcall $0xf, $0 /* Do the magic sigreturn trap. */ + /* NOTREACHED */ + +weak_alias (__sigreturn, sigreturn) -- cgit 1.4.1