12b5b6b7f7
1999-05-11 Ulrich Drepper <drepper@cygnus.com> * elf/Versions (ld.so) [GLIBC_2.1.1]: Add _dl_lazy. * elf/dl-open.c (_dl_open_worker): Only relocate newly loaded objects lazily if LD_BIND_NOW is not set. * elf/dl-support.c (_dl_lazy): New variable. (non_dynamic_init): Set _dl_lazy according to LD_BIND_NOW envvar. * elf/rtld.c (_dl_lazy): new global variable. ( dl_main): Remove lazy, replace it by _dl_lazy. 1999-05-06 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * locale/setlocale.c (new_composite_name): Check also whether the first category name differs. 1999-05-11 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * sysdeps/unix/sysv/linux/ftime.c: Use the bsd implementation, not the generic one. 1999-05-11 Philip Blundell <pb@nexus.co.uk> * sysdeps/generic/bits/socket.h (struct sockaddr_storage): New structure; storage suitable for any socket address. * sysdeps/unix/sysv/linux/bits/socket.h (struct sockaddr_storage): Likewise. * sysdeps/unix/sysv/linux/mips/bits/socket.h (struct sockaddr_storage): Likewise. * inet/netinet/in.h: Use ULONG_MAX not ~0 to test for a 64-bit platform.
124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
/* Support for dynamic linking code in static libc.
|
|
Copyright (C) 1996, 1997, 1998, 1999 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. */
|
|
|
|
/* This file defines some things that for the dynamic linker are defined in
|
|
rtld.c and dl-sysdep.c in ways appropriate to bootstrap dynamic linking. */
|
|
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <elf/ldsodefs.h>
|
|
#include <dl-machine.h>
|
|
|
|
extern char *__progname;
|
|
char **_dl_argv = &__progname; /* This is checked for some error messages. */
|
|
|
|
/* Name of the architecture. */
|
|
const char *_dl_platform;
|
|
size_t _dl_platformlen;
|
|
|
|
int _dl_debug_libs;
|
|
int _dl_debug_impcalls;
|
|
int _dl_debug_bindings;
|
|
int _dl_debug_symbols;
|
|
int _dl_debug_versions;
|
|
int _dl_debug_reloc;
|
|
int _dl_debug_files;
|
|
int _dl_lazy;
|
|
|
|
/* If nonzero print warnings about problematic situations. */
|
|
int _dl_verbose;
|
|
|
|
/* Structure to store information about search paths. */
|
|
struct r_search_path *_dl_search_paths;
|
|
|
|
/* We never do profiling. */
|
|
const char *_dl_profile;
|
|
|
|
/* Names of shared object for which the RPATHs should be ignored. */
|
|
const char *_dl_inhibit_rpath;
|
|
|
|
/* The map for the object we will profile. */
|
|
struct link_map *_dl_profile_map;
|
|
|
|
/* This is the address of the last stack address ever used. */
|
|
void *__libc_stack_end;
|
|
|
|
/* Path where the binary is found. */
|
|
const char *_dl_origin_path;
|
|
|
|
/* Initially empty list of loaded objects. */
|
|
struct link_map *_dl_loaded;
|
|
|
|
/* Fake scope. In dynamically linked binaries this is the scope of the
|
|
main application but here we don't have something like this. So
|
|
create a fake scope containing nothing. */
|
|
struct r_scope_elem _dl_initial_searchlist;
|
|
/* Variable which can be used in lookup to process the global scope. */
|
|
struct r_scope_elem *_dl_global_scope[2] = { &_dl_initial_searchlist, NULL };
|
|
/* This is a global pointer to this structure which is public. It is
|
|
used by dlopen/dlclose to add and remove objects from what is regarded
|
|
to be the global scope. */
|
|
struct r_scope_elem *_dl_main_searchlist = &_dl_initial_searchlist;
|
|
|
|
|
|
static void non_dynamic_init (void) __attribute__ ((unused));
|
|
|
|
static void
|
|
non_dynamic_init (void)
|
|
{
|
|
_dl_verbose = *(getenv ("LD_WARN") ?: "") == '\0' ? 0 : 1;
|
|
|
|
_dl_pagesize = __getpagesize ();
|
|
|
|
/* Initialize the data structures for the search paths for shared
|
|
objects. */
|
|
_dl_init_paths (getenv ("LD_LIBRARY_PATH"));
|
|
|
|
_dl_lazy = *(getenv ("LD_BIND_NOW") ?: "") == '\0';
|
|
|
|
#ifdef DL_PLATFORM_INIT
|
|
DL_PLATFORM_INIT;
|
|
#endif
|
|
|
|
/* Now determine the length of the platform string. */
|
|
if (_dl_platform != NULL)
|
|
_dl_platformlen = strlen (_dl_platform);
|
|
}
|
|
text_set_element (__libc_subinit, non_dynamic_init);
|
|
|
|
const struct r_strlenpair *
|
|
internal_function
|
|
_dl_important_hwcaps (const char *platform, size_t platform_len, size_t *sz,
|
|
size_t *max_capstrlen)
|
|
{
|
|
struct r_strlenpair *result;
|
|
|
|
/* XXX We don't try to find the capabilities in this case. */
|
|
result = (struct r_strlenpair *) malloc (sizeof (*result));
|
|
if (result == NULL)
|
|
_dl_signal_error (ENOMEM, NULL, "cannot create capability list");
|
|
|
|
result[0].str = (char *) result; /* Does not really matter. */
|
|
result[0].len = 0;
|
|
|
|
*sz = 1;
|
|
return result;
|
|
}
|