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/* Copyright (C) 1993 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., 675 Mass Ave,
Cambridge, MA 02139, 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
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