mirror of
https://sourceware.org/git/glibc.git
synced 2024-10-06 14:07:58 +00:00
a8922de8c7
Fri Aug 9 17:38:58 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/sys/timex.h: Include <sys/time.h> to get `struct timeval'. * sysdeps/unix/sysv/linux/sys/acct.h: Get time_t from <time.h>. * sysdeps/unix/sysv/linux/sys/module.h: Get size_t from <stddef.h>. * sysdeps/unix/sysv/linux/sys/io.h: Get definition of __P. * sysdeps/unix/sysv/linux/sys/klog.h: Likewise. * gmon/sys/gmon.h: Include <sys/types.h> to get u_long. * sysdeps/unix/sysv/linux/direntry.h: Complete types in <linux/dirent.h>. * io/fts.h: Include <sys/types.h> to get dev_t. Reported by Matthias Urlichs. * sysdeps/posix/tempname.c [USE_IN_LIBIO]: Don't clear _IO_file_flags. It's the same as _flags. Reported by Miquel van Smoorenburg <miquels@Q.cistron.nl>. Wed Aug 7 19:38:47 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/m68k/resourcebits.h: Add RLIMIT_AS.
103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
/* Initialization code run first thing by the ELF startup code. Linux version.
|
|
Copyright (C) 1995, 1996 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 <unistd.h>
|
|
#include <sysdep.h>
|
|
#include <fpu_control.h>
|
|
#include <linux/personality.h>
|
|
#include "init-first.h"
|
|
|
|
extern void __libc_init (int, char **, char **);
|
|
extern void __libc_global_ctors (void);
|
|
|
|
/* The function is called from assembly stubs the compiler can't see. */
|
|
static void init (void *) __attribute__ ((unused));
|
|
|
|
extern int __libc_is_static;
|
|
#ifdef PIC
|
|
weak_extern (__libc_is_static)
|
|
#endif
|
|
|
|
static void
|
|
init (void *data)
|
|
{
|
|
extern int __personality (int);
|
|
|
|
int argc = *(long *)data;
|
|
char **argv = (char **)data + 1;
|
|
char **envp = &argv[argc + 1];
|
|
|
|
/* XXX Another gcc bug. We marked the function as `unused' but it
|
|
is still optimized away. */
|
|
volatile void *foo __attribute__ ((unused)) = &init;
|
|
|
|
#ifdef PIC
|
|
if (&__libc_is_static != NULL)
|
|
#endif
|
|
{
|
|
#ifdef PIC
|
|
/* We must not call `personality' twice. */
|
|
if (__libc_is_static == 0)
|
|
#endif
|
|
{
|
|
/* The `personality' system call takes one argument that
|
|
chooses the "personality", i.e. the set of system calls
|
|
and such. We must make this call first thing to disable
|
|
emulation of some other system that might have been
|
|
enabled by default based on the executable format. */
|
|
__personality (PER_LINUX);
|
|
|
|
/* Set the FPU control word to the proper default value. */
|
|
__setfpucw (__fpu_control);
|
|
}
|
|
|
|
/* We set LIBC_IS_STATIC to a value > 0 for the static library
|
|
and < 0 for the shared library. This information might be
|
|
useful for the running program but it is mainly necessary for
|
|
the above `if' statement. */
|
|
#ifdef PIC
|
|
__libc_is_static = -1;
|
|
#else
|
|
__libc_is_static = 1;
|
|
#endif
|
|
}
|
|
|
|
__environ = envp;
|
|
__libc_init (argc, argv, envp);
|
|
|
|
#ifdef PIC
|
|
__libc_global_ctors ();
|
|
#endif
|
|
}
|
|
|
|
#ifdef PIC
|
|
|
|
SYSDEP_CALL_INIT(_init, init);
|
|
|
|
void
|
|
__libc_init_first (void)
|
|
{
|
|
}
|
|
|
|
#else
|
|
|
|
SYSDEP_CALL_INIT(__libc_init_first, init);
|
|
|
|
#endif
|