glibc/sysdeps/unix/i386/syscall.S
Roland McGrath 439d1d4560 Sat Jul 22 01:56:03 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/unix/i386/sysdep.h (JUMPTARGET): New macro; use name@PLT
 	#ifdef PIC.
	(PSEUDO): Use JUMPTARGET(syscall_error) in jump insn.
	* sysdeps/unix/i386/syscall.S: Use JUMPTARGET(syscall_error) in
 	jump insn.

	* sysdeps/unix/sysv/sysv4/linux/i386/sysdep.h: Rewritten.
	* sysdeps/unix/sysv/sysv4/linux/i386/syscall.S: New file.
	* sysdeps/unix/sysv/sysv4/linux/i386/socket.S: Include
 	<sys/socketcall.h>.  Save %ebx in call-clobbered %edx instead of
 	stack.  Use JUMPTARGET(syscall_error) in jump insn.

	* Makeconfig (+gccwarn): Add -Wbad-function-cast -Wconversion.

	* sysdeps/unix/i386/sysdep.h (ENTRY): Use ASM_GLOBAL_DIRECTIVE and
 	ASM_TYPE_DIRECTIVE.
	(ASM_TYPE_DIRECTIVE): New macro; defined using `.type' #ifdef ELF.

	* sysdeps/unix/sysv/sysv4/linux/i386/sysdep.S (__syscall_error): 
	Rewritten, #include'ing unix/i386/sysdep.S for most of the code.
	* sysdeps/unix/i386/sysdep.S [PIC]: Store into `errno' through the GOT.

	Fixes to help Linux, inspired by drepper's work:
	* configure.in (os=linux*): Use unix/sysv/sysv4 for $base_os,
 	instead of unix/sysv.
	* sysdeps/posix/utimes.c: New file.
	* sysdeps/generic/getdomain.c: New file.
	* sysdeps/i386/init-first.c: Removed gratuitous #include <hurd.h>.
	* sysdeps/generic/dl-sysdep.c: Include <unistd.h> and declare
 	externals _dl_argc, _dl_argc, and _environ.
	* sysdeps/unix/sysv/linux/{accept,connect,getsockname,rename,
	socketpair,waitpid,bind,getpeername,listen,setsid,wait4}.S: Moved
	to new directory sysdeps/unix/sysv/sysv4/linux.
	* sysdeps/unix/sysv/linux: Directory removed.
	* sysdeps/unix/sysv/i386/linux/{socket.S,sysdep.h,sysdep.S}: Moved
	to new directory sysdeps/unix/sysv/sysv4/linux/i386.
	* sysdeps/unix/sysv/linux/i386: Directory removed.
1995-07-22 10:48:43 +00:00

29 lines
1.1 KiB
ArmAsm

/* Copyright (C) 1993, 1995 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>
.globl syscall_error
ENTRY (syscall)
popl %ecx /* Pop return address into %ecx. */
popl %eax /* Pop syscall number into %eax. */
pushl %ecx /* Push back return address. */
.byte 0x9a, 0, 0, 0, 0, 7, 0 /* lcall $7, $0 -- gas bug */
jb JUMPTARGET(syscall_error)
ret