diff options
Diffstat (limited to 'newlib/libc/sys/linux/dl/dl-object.c')
| -rw-r--r-- | newlib/libc/sys/linux/dl/dl-object.c | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/newlib/libc/sys/linux/dl/dl-object.c b/newlib/libc/sys/linux/dl/dl-object.c deleted file mode 100644 index 1e2049e25..000000000 --- a/newlib/libc/sys/linux/dl/dl-object.c +++ /dev/null @@ -1,163 +0,0 @@ -/* Storage management for the chain of loaded shared objects. - Copyright (C) 1995,96,97,98,99,2000,2001 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 <errno.h> -#include <string.h> -#include <stdlib.h> -#include <unistd.h> -#include <ldsodefs.h> - -#include <assert.h> - - -/* Allocate a `struct link_map' for a new object being loaded, - and enter it into the _dl_loaded list. */ - -struct link_map * -internal_function -_dl_new_object (char *realname, const char *libname, int type, - struct link_map *loader) -{ - struct link_map *l; - int idx; - size_t libname_len = strlen (libname) + 1; - struct link_map *new; - struct libname_list *newname; - - new = (struct link_map *) calloc (sizeof (*new) + sizeof (*newname) - + libname_len, 1); - if (new == NULL) - return NULL; - - new->l_libname = newname = (struct libname_list *) (new + 1); - newname->name = (char *) memcpy (newname + 1, libname, libname_len); - /* newname->next = NULL; We use calloc therefore not necessary. */ - newname->dont_free = 1; - - new->l_name = realname; - new->l_type = type; - new->l_loader = loader; - /* new->l_global = 0; We use calloc therefore not necessary. */ - - /* Use the 'l_scope_mem' array by default for the the 'l_scope' - information. If we need more entries we will allocate a large - array dynamically. */ - new->l_scope = new->l_scope_mem; - new->l_scope_max = sizeof (new->l_scope_mem) / sizeof (new->l_scope_mem[0]); - - /* Counter for the scopes we have to handle. */ - idx = 0; - - if (_dl_loaded != NULL) - { - l = _dl_loaded; - while (l->l_next != NULL) - l = l->l_next; - new->l_prev = l; - /* new->l_next = NULL; Would be necessary but we use calloc. */ - l->l_next = new; - - /* Add the global scope. */ - new->l_scope[idx++] = &_dl_loaded->l_searchlist; - } - else - _dl_loaded = new; - ++_dl_nloaded; - - /* If we have no loader the new object acts as it. */ - if (loader == NULL) - loader = new; - else - /* Determine the local scope. */ - while (loader->l_loader != NULL) - loader = loader->l_loader; - - /* Insert the scope if it isn't the global scope we already added. */ - if (idx == 0 || &loader->l_searchlist != new->l_scope[0]) - new->l_scope[idx] = &loader->l_searchlist; - - new->l_local_scope[0] = &new->l_searchlist; - - /* Don't try to find the origin for the main map which has the name "". */ - if (realname[0] != '\0') - { - size_t realname_len = strlen (realname) + 1; - char *origin; - char *cp; - - if (realname[0] == '/') - { - /* It is an absolute path. Use it. But we have to make a - copy since we strip out the trailing slash. */ - cp = origin = (char *) malloc (realname_len); - if (origin == NULL) - { - origin = (char *) -1; - goto out; - } - } - else - { - size_t len = realname_len; - char *result = NULL; - - /* Get the current directory name. */ - origin = NULL; - do - { - len += 128; - origin = (char *) realloc (origin, len); - } - while (origin != NULL - && (result = getcwd (origin, len - realname_len)) == NULL - && errno == ERANGE); - - if (result == NULL) - { - /* We were not able to determine the current directory. - Note that free(origin) is OK if origin == NULL. */ - free (origin); - origin = (char *) -1; - goto out; - } - - /* Find the end of the path and see whether we have to add - a slash. */ - cp = memchr (origin, '\0', strlen(origin)); - if (cp[-1] != '/') - *cp++ = '/'; - } - - /* Add the real file name. */ - memcpy (cp, realname, realname_len); - - /* Now remove the filename and the slash. Leave the slash if it - the name is something like "/foo". */ - cp = strrchr (origin, '/'); - if (cp == origin) - origin[1] = '\0'; - else - *cp = '\0'; - - out: - new->l_origin = origin; - } - - return new; -} |