mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-20 03:50:07 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
121 lines
4.0 KiB
C
121 lines
4.0 KiB
C
/* Copyright (C) 1998, 2000, 2001 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <ldsodefs.h>
|
|
#include <bp-start.h>
|
|
#include <bp-sym.h>
|
|
|
|
extern void __libc_init_first (int argc, char **argv, char **envp);
|
|
|
|
extern int _dl_starting_up;
|
|
weak_extern (_dl_starting_up)
|
|
extern int __libc_multiple_libcs;
|
|
extern void *__libc_stack_end;
|
|
|
|
struct startup_info
|
|
{
|
|
void *__unbounded sda_base;
|
|
int (*main) (int, char **, char **, void *);
|
|
int (*init) (int, char **, char **, void *);
|
|
void (*fini) (void);
|
|
};
|
|
|
|
int
|
|
/* GKM FIXME: GCC: this should get __BP_ prefix by virtue of the
|
|
BPs in the arglist of startup_info.main and startup_info.init. */
|
|
BP_SYM (__libc_start_main) (int argc, char *__unbounded *__unbounded ubp_av,
|
|
char *__unbounded *__unbounded ubp_ev,
|
|
void *__unbounded auxvec, void (*rtld_fini) (void),
|
|
struct startup_info *__unbounded stinfo,
|
|
char *__unbounded *__unbounded stack_on_entry)
|
|
{
|
|
#if __BOUNDED_POINTERS__
|
|
char **argv;
|
|
#else
|
|
# define argv ubp_av
|
|
#endif
|
|
|
|
#ifndef SHARED
|
|
/* The next variable is only here to work around a bug in gcc <= 2.7.2.2.
|
|
If the address would be taken inside the expression the optimizer
|
|
would try to be too smart and throws it away. Grrr. */
|
|
int *dummy_addr = &_dl_starting_up;
|
|
|
|
__libc_multiple_libcs = dummy_addr && !_dl_starting_up;
|
|
#endif
|
|
|
|
/* the PPC SVR4 ABI says that the top thing on the stack will
|
|
be a NULL pointer, so if not we assume that we're being called
|
|
as a statically-linked program by Linux... */
|
|
if (*stack_on_entry != NULL)
|
|
{
|
|
/* ...in which case, we have argc as the top thing on the
|
|
stack, followed by argv (NULL-terminated), envp (likewise),
|
|
and the auxilary vector. */
|
|
argc = *(int *__unbounded) stack_on_entry;
|
|
ubp_av = stack_on_entry + 1;
|
|
ubp_ev = ubp_av + argc + 1;
|
|
auxvec = ubp_ev;
|
|
while (*(char *__unbounded *__unbounded) auxvec != NULL)
|
|
++auxvec;
|
|
++auxvec;
|
|
#ifndef SHARED
|
|
_dl_aux_init ((ElfW(auxv_t) *) auxvec);
|
|
#endif
|
|
rtld_fini = NULL;
|
|
}
|
|
|
|
INIT_ARGV_and_ENVIRON;
|
|
|
|
/* Store something that has some relationship to the end of the
|
|
stack, for backtraces. This variable should be thread-specific. */
|
|
__libc_stack_end = stack_on_entry + 4;
|
|
|
|
/* Register the destructor of the dynamic linker if there is any. */
|
|
if (rtld_fini != NULL)
|
|
__cxa_atexit ((void (*) (void *)) rtld_fini, NULL, NULL);
|
|
|
|
/* Call the initializer of the libc. */
|
|
#ifdef SHARED
|
|
if (__builtin_expect (_dl_debug_mask & DL_DEBUG_IMPCALLS, 0))
|
|
_dl_debug_printf ("\ninitialize libc\n\n");
|
|
#endif
|
|
__libc_init_first (argc, argv, __environ);
|
|
|
|
/* Register the destructor of the program, if any. */
|
|
if (stinfo->fini)
|
|
__cxa_atexit ((void (*) (void *)) stinfo->fini, NULL, NULL);
|
|
|
|
/* Call the initializer of the program, if any. */
|
|
#ifdef SHARED
|
|
if (__builtin_expect (_dl_debug_mask & DL_DEBUG_IMPCALLS, 0))
|
|
_dl_debug_printf ("\ninitialize program: %s\n\n", argv[0]);
|
|
#endif
|
|
if (stinfo->init)
|
|
stinfo->init (argc, argv, __environ, auxvec);
|
|
|
|
#ifdef SHARED
|
|
if (__builtin_expect (_dl_debug_mask & DL_DEBUG_IMPCALLS, 0))
|
|
_dl_debug_printf ("\ntransferring control: %s\n\n", argv[0]);
|
|
#endif
|
|
|
|
exit (stinfo->main (argc, argv, __environ, auxvec));
|
|
}
|