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/* glibc-2.22: elf/dl-object.c */
/* Storage management for the chain of loaded shared objects.
Copyright (C) 1995-2015 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, see
<http://www.gnu.org/licenses/>. */
#include <assert.h>
#include <error.h>
#include <errno.h>
#include <string.h>
#include "rtld.h"
/* Allocate a `struct link_map' for a new object being loaded,
and enter it into the _dl_loaded list. */
struct link_map *
_dl_new_object (const char *realname, const char *libname, int type)
{
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 *) ((char *) (new + 1));
newname->name = (char *) memcpy (newname + 1, libname, libname_len);
/* newname->next = NULL; We use calloc therefore not necessary. */
/* When we create the executable link map, or a VDSO link map, we start
with "" for the l_name. In these cases "" points to ld.so rodata
and won't get dumped during core file generation. Therefore to assist
gdb and to create more self-contained core files we adjust l_name to
point at the newly allocated copy (which will get dumped) instead of
the ld.so rodata copy. */
new->l_name = *realname ? realname : (char *) newname->name + libname_len - 1;
new->l_type = type;
return new;
}
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