diff options
Diffstat (limited to 'newlib/libc/sys/linux/dl/dl-init.c')
| -rw-r--r-- | newlib/libc/sys/linux/dl/dl-init.c | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/newlib/libc/sys/linux/dl/dl-init.c b/newlib/libc/sys/linux/dl/dl-init.c deleted file mode 100644 index 5448b03c3..000000000 --- a/newlib/libc/sys/linux/dl/dl-init.c +++ /dev/null @@ -1,149 +0,0 @@ -/* Return the next shared object initializer function not yet run. - Copyright (C) 1995,1996,1998,1999,2000,2001 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 <stddef.h> -#include <ldsodefs.h> - - -/* Type of the initializer. */ -typedef void (*init_t) (int, char **, char **); - -/* Flag, nonzero during startup phase. */ -extern int _dl_starting_up; - -/* The object to be initialized first. */ -extern struct link_map *_dl_initfirst; - - -static void -call_init (struct link_map *l, int argc, char **argv, char **env) -{ - if (l->l_init_called) - /* This object is all done. */ - return; - - /* Avoid handling this constructor again in case we have a circular - dependency. */ - l->l_init_called = 1; - - /* Check for object which constructors we do not run here. */ - if (__builtin_expect (l->l_name[0], 'a') == '\0' - && l->l_type == lt_executable) - return; - - /* Are there any constructors? */ - if (l->l_info[DT_INIT] == NULL - && __builtin_expect (l->l_info[DT_INIT_ARRAY] == NULL, 1)) - return; - - /* Print a debug message if wanted. */ - if (__builtin_expect (_dl_debug_mask & DL_DEBUG_IMPCALLS, 0)) - _dl_debug_printf ("\ncalling init: %s\n\n", - l->l_name[0] ? l->l_name : _dl_argv[0]); - - /* Now run the local constructors. There are two forms of them: - - the one named by DT_INIT - - the others in the DT_INIT_ARRAY. - */ - if (l->l_info[DT_INIT] != NULL) - { - init_t init = (init_t) DL_DT_INIT_ADDRESS - (l, l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr); - - /* Call the function. */ - init (argc, argv, env); - } - - /* Next see whether there is an array with initialization functions. */ - if (l->l_info[DT_INIT_ARRAY] != NULL) - { - unsigned int j; - unsigned int jm; - ElfW(Addr) *addrs; - - jm = l->l_info[DT_INIT_ARRAYSZ]->d_un.d_val / sizeof (ElfW(Addr)); - - addrs = (ElfW(Addr) *) (l->l_info[DT_INIT_ARRAY]->d_un.d_ptr - + l->l_addr); - for (j = 0; j < jm; ++j) - ((init_t) addrs[j]) (argc, argv, env); - } -} - - -void -internal_function -_dl_init (struct link_map *main_map, int argc, char **argv, char **env) -{ - ElfW(Dyn) *preinit_array = main_map->l_info[DT_PREINIT_ARRAY]; - struct r_debug *r; - unsigned int i; - - if (__builtin_expect (_dl_initfirst != NULL, 0)) - { - call_init (_dl_initfirst, argc, argv, env); - _dl_initfirst = NULL; - } - - /* Don't do anything if there is no preinit array. */ - if (__builtin_expect (preinit_array != NULL, 0) - && (i = preinit_array->d_un.d_val / sizeof (ElfW(Addr))) > 0) - { - ElfW(Addr) *addrs; - unsigned int cnt; - - if (__builtin_expect (_dl_debug_mask & DL_DEBUG_IMPCALLS, 0)) - _dl_debug_printf ("\ncalling preinit: %s\n\n", - main_map->l_name[0] - ? main_map->l_name : _dl_argv[0]); - - addrs = (ElfW(Addr) *) (main_map->l_info[DT_PREINIT_ARRAY]->d_un.d_ptr - + main_map->l_addr); - for (cnt = 0; cnt < i; ++cnt) - ((init_t) addrs[cnt]) (argc, argv, env); - } - - /* Notify the debugger we have added some objects. We need to call - _dl_debug_initialize in a static program in case dynamic linking has - not been used before. */ - r = _dl_debug_initialize (0); - r->r_state = RT_ADD; - _dl_debug_state (); - - /* Stupid users forced the ELF specification to be changed. It now - says that the dynamic loader is responsible for determining the - order in which the constructors have to run. The constructors - for all dependencies of an object must run before the constructor - for the object itself. Circular dependencies are left unspecified. - - This is highly questionable since it puts the burden on the dynamic - loader which has to find the dependencies at runtime instead of - letting the user do it right. Stupidity rules! */ - - i = main_map->l_searchlist.r_nlist; - while (i-- > 0) - call_init (main_map->l_initfini[i], argc, argv, env); - - /* Notify the debugger all new objects are now ready to go. */ - r->r_state = RT_CONSISTENT; - _dl_debug_state (); - - /* Finished starting up. */ - _dl_starting_up = 0; -} |