mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-27 04:41:02 +08:00
a808d541c6
2000-02-28 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/start.c: Initialize __errno and add comment explaining why. Remove K&R compatibility. * sysdeps/powerpc/fpu/s_isnan.c: Avoid using asm statement to declare aliases. * sysdeps/powerpc/Makefile: Always pass flags to compile for ppc and not rs6000. [$(subdir)=misc] (sysdep_routines): Add gprsave0, gprrest0, gprsave1 , and gprrest1. Don't pass special flags to compiler for init and gmon-start if this is no ELF platform. * sysdeps/mach/hurd/bits/statfs.h: Define _STATFS_F_NAMELEN. * sysdeps/unix/sysv/linux/bits/statfs.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/statfs.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/statfs.h: Likewise. * sysdeps/posix/fpathconf.c: Don't unconditionally use f_namelen in statfs. Check feature macro and use f_name_max or NAME_MAX instead. * sysdeps/posix/pathconf.c: Likewise. * dlfcn/dlfcn.h: Remove DL_CALL_FCT definition here. * sysdeps/generic/bits/dlfcn.h: Define DL_CALL_FCT here. * sysdeps/mips/bits/dlfcn.h: Define DL_CALL_FCT here. * iconv/skeleton.c: If DL_CALL_FCT is not yet defined, add dumy definition here. * sysdeps/generic/libc-start.c: Fix typo in comment. * include/set-hooks.h: Allow systems to not define symbol_set_define. * configure.in: Unify machine names rs6000 and powerpc.
96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/* Copyright (C) 1991, 93, 1995-1998, 2000 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 <errno.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sysdep.h> /* In case it wants to define anything. */
|
|
|
|
/* The first piece of initialized data. */
|
|
int __data_start = 0;
|
|
#ifdef HAVE_WEAK_SYMBOLS
|
|
weak_alias (__data_start, data_start)
|
|
#endif
|
|
|
|
#ifdef DUMMIES
|
|
#define ARG_DUMMIES DUMMIES,
|
|
#define DECL_DUMMIES int DUMMIES;
|
|
#else
|
|
#define ARG_DUMMIES
|
|
#define DECL_DUMMIES
|
|
#endif
|
|
|
|
#ifndef errno
|
|
/* __errno must be initialized since otherwise one cannot create an
|
|
alias (at least on some platforms). */
|
|
volatile int __errno = 0;
|
|
strong_alias (__errno, errno)
|
|
#endif
|
|
|
|
extern void __libc_init (int argc, char **argv, char **envp);
|
|
extern int main (int argc, char **argv, char **envp);
|
|
|
|
|
|
/* Not a prototype because it gets called strangely. */
|
|
static void start1();
|
|
|
|
#ifndef HAVE__start
|
|
|
|
/* N.B.: It is important that this be the first function.
|
|
This file is the first thing in the text section. */
|
|
void
|
|
_start ()
|
|
{
|
|
start1 ();
|
|
}
|
|
|
|
#ifndef NO_UNDERSCORES
|
|
/* Make an alias called `start' (no leading underscore, so it can't
|
|
conflict with C symbols) for `_start'. This is the name vendor crt0.o's
|
|
tend to use, and thus the name most linkers expect. */
|
|
asm (".set start, __start");
|
|
#endif
|
|
|
|
#endif
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
start1 (ARG_DUMMIES argc, argp)
|
|
DECL_DUMMIES
|
|
int argc;
|
|
char *argp;
|
|
{
|
|
char **argv = &argp;
|
|
|
|
/* The environment starts just after ARGV. */
|
|
__environ = &argv[argc + 1];
|
|
|
|
/* If the first thing after ARGV is the arguments
|
|
themselves, there is no environment. */
|
|
if ((char *) __environ == *argv)
|
|
/* The environment is empty. Make __environ
|
|
point at ARGV[ARGC], which is NULL. */
|
|
--__environ;
|
|
|
|
/* Do C library initializations. */
|
|
__libc_init (argc, argv, __environ);
|
|
|
|
/* Call the user program. */
|
|
exit (main (argc, argv, __environ));
|
|
}
|