mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-04 19:00:09 +00:00
46 lines
1.8 KiB
ArmAsm
46 lines
1.8 KiB
ArmAsm
/* Copyright (C) 1993, 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 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 <sysdep.h>
|
|
|
|
/* The Dynix `sigvec' system call takes an extra argument,
|
|
which is the address of the trampoline function. */
|
|
|
|
.text
|
|
.align 4
|
|
trampoline:
|
|
cld /* Clear direction flag. */
|
|
call %eax /* Call the handler, address in %eax. */
|
|
addl $8, %esp /* Pop signum & code off the stack. */
|
|
/* __sigreturn will restore the context, and never return here. */
|
|
call C_SYMBOL_NAME (__sigreturn)
|
|
|
|
.globl syscall_error
|
|
ENTRY (__sigvec)
|
|
pushl $trampoline /* Push fourth arg: trampoline address. */
|
|
pushl 16(%esp) /* Push third arg: our third arg. */
|
|
pushl 16(%esp) /* Push second arg: our second arg. */
|
|
pushl 16(%esp) /* Push first arg: our first arg. */
|
|
mov %esp, %ecx /* Point the syscall at the arguments. */
|
|
addl $16, %esp /* Pop those four args. */
|
|
DO_CALL (sigvec, 4) /* Do the system call. */
|
|
jb syscall_error /* Check for error. */
|
|
ret
|
|
|
|
weak_alias (__sigvec, sigvec)
|