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Update.

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1998-09-06 09:00  Ulrich Drepper  <drepper@cygnus.com>

	* version.h (VERSION): Bump to 2.0.96.

	Rewrite runtime linker to be truly thread-safe.  There is now no
	global variable specifying the scope.  We create all needed
	scopes at the time the link maps are created.
	* elf/Versions [GLIBC_2.1]: Add _dl_loaded and _dl_main_searchlist.
	* elf/link.h: Add struct r_scope_elem and use this for l_searchlist,
	l_symbolic_searchlist, l_scope, and l_local_scope elements in
	struct link_map.
	* elf/dl-close.c: Rewritten accordingly.
	* elf/dl-deps.c: Likewise.
	* elf/dl-error.c: Likewise.
	* elf/dl-init.c: Likewise.
	* elf/dl-load.c: Likewise.
	* elf/dl-lookup.c: Likewise.
	* elf/dl-object.c: Likewise.
	* elf/dl-open.c: Likewise.
	* elf/dl-reloc.c: Likewise.
	* elf/dl-runtime.c: Likewise.
	* elf/dl-support.c: Likewise.
	* elf/dl-symbol.c: Likewise.
	* elf/dl-version.c: Likewise.
	* elf/dlfcn.h: Likewise.
	* elf/dlsym.c: Likewise.
	* elf/dlvsym.c: Likewise.
	* elf/ldsodefs.h: Likewise.
	* elf/rtld.c: Likewise.
	* iconv/gconv_dl.c: Likewise.
	* nss/nsswitch.c: Likewise.
	* sysdeps/i386/dl-machine.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise.
This commit is contained in:
Ulrich Drepper
1998-09-06 09:16:53 +00:00
parent 9eb71e60ef
commit be93561004
27 changed files with 444 additions and 362 deletions
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42
elf/dl-object.c
View File

@ -25,16 +25,17 @@
#include <assert.h>
/* List of objects currently loaded is [2] of this, aka _dl_loaded. */
struct link_map *_dl_default_scope[5];
/* 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)
_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 = calloc (sizeof *new, 1);
struct libname_list *newname = malloc (sizeof *newname + libname_len);
@ -46,26 +47,37 @@ _dl_new_object (char *realname, const char *libname, int type)
newname->next = NULL;
new->l_libname = newname;
new->l_type = type;
new->l_loader = loader;
if (_dl_loaded == NULL)
/* Counter for the scopes we have to handle. */
idx = 0;
if (_dl_loaded != NULL)
{
new->l_prev = new->l_next = NULL;
_dl_loaded = new;
}
else
{
struct link_map *l = _dl_loaded;
l = _dl_loaded;
while (l->l_next)
l = l->l_next;
new->l_prev = l;
new->l_next = NULL;
/* new->l_next = NULL; Would be necesary but we use calloc. */
l->l_next = new;
}
/* Don't try to find the origin for the main map. */
if (realname[0] == '\0')
new->l_origin = NULL;
/* Add the global scope. */
new->l_scope[idx++] = &_dl_loaded->l_searchlist;
}
/* This is our local scope. */
if (loader != NULL)
{
while (loader->l_loader != NULL)
loader = loader->l_loader;
new->l_scope[idx] = &loader->l_searchlist;
}
else
new->l_scope[idx] = &new->l_searchlist;
new->l_local_scope[0] = new->l_scope[idx];
/* Don't try to find the origin for the main map which has the name "". */
if (realname[0] != '\0')
{
char *origin;