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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
-