1 /* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If
16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
17 Cambridge, MA 02139, USA. */
21 /* The Dynix `sigvec' system call takes an extra argument,
22 which is the address of the trampoline function. */
27 cld /* Clear direction flag. */
28 call %eax /* Call the handler, address in %eax. */
29 addl $8, %esp /* Pop signum & code off the stack. */
30 /* __sigreturn will restore the context, and never return here. */
31 call C_SYMBOL_NAME (__sigreturn)
35 pushl $trampoline /* Push fourth arg: trampoline address. */
36 pushl 16(%esp) /* Push third arg: our third arg. */
37 pushl 16(%esp) /* Push second arg: our second arg. */
38 pushl 16(%esp) /* Push first arg: our first arg. */
39 mov %esp, %ecx /* Point the syscall at the arguments. */
40 addl $16, %esp /* Pop those four args. */
41 DO_CALL (sigvec, 4) /* Do the system call. */
42 jb syscall_error /* Check for error. */
45 weak_alias (__sigvec, sigvec)