glibc/elf/neededtest.c
Ulrich Drepper 20fe49b93a * include/link.h (struct link_map): Remove l_opencount. Add l_removed.
Change type of l_idx to int.
	* elf/dl-close.c: Basically rewrite.  Do not use l_opencount to
	determine whether a DSO has to be unloaded.  Instead compute this
	in this function.
	* elf/dl-deps.c: No need to manipulate l_opencount anymore.
	* elf/dl-lookup.c: Likewise.
	* elf/rtld.c: Likewise
	* elf/dl-open.c: Likewise.  Use l_init_called to determine whether
	object was just loaded.
	* elf/dl-fini.c: Bump l_direct_opencount instead of l_opencount.
	* elf/dl-load.c (_dl_map_object_from_fd): Do not recognize DSO which
	is about to be unloaded as a match.
	(_dl_map_object): Likewise.
	* elf/do-lookup.h (do_lookup_x): Do not look into DSO which is about
	to be unloaded.
	* elf/circleload1.c: Don't use l_opencount anymore.
	* elf/neededtest.c: Likewise.
	* elf/neededtest2.c: Likewise.
	* elf/neededtest3.c: Likewise.
	* elf/neededtest4.c: Likewise.
	* elf/unload.c: Likewise.
	* elf/unload2.c: Likewise.
	* elf/loadtest.c: Likewise.

	* elf/rtld.c: Preloading errors are now never fatal.

2005-03-08  Jakub Jelinek  <jakub@redhat.com>

	* elf/Makefile: Add rules to build and run unload5 test.
	* elf/unload5.c: New file.

2005-03-08  Jakub Jelinek  <jakub@redhat.com>

	* elf/Makefile: Add rules to build and run unload4 test.
	* elf/unload4.c: New file.
	* elf/unload4mod1.c: New file.
	* elf/unload4mod2.c: New file.
	* elf/unload4mod3.c: New file.
	* elf/unload4mod4.c: New file.
2005-03-18 11:11:42 +00:00

124 lines
2.6 KiB
C

#include <dlfcn.h>
#include <libintl.h>
#include <link.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static int
check_loaded_objects (const char **loaded)
{
struct link_map *lm;
int n;
int *found = NULL;
int errors = 0;
for (n = 0; loaded[n]; n++)
/* NOTHING */;
if (n)
{
found = (int *) alloca (sizeof (int) * n);
memset (found, 0, sizeof (int) * n);
}
printf(" Name\n");
printf(" --------------------------------------------------------\n");
for (lm = _r_debug.r_map; lm; lm = lm->l_next)
{
if (lm->l_name && lm->l_name[0])
printf(" %s, count = %d\n", lm->l_name, (int) lm->l_direct_opencount);
if (lm->l_type == lt_loaded && lm->l_name)
{
int match = 0;
for (n = 0; loaded[n] != NULL; n++)
{
if (strcmp (basename (loaded[n]), basename (lm->l_name)) == 0)
{
found[n] = 1;
match = 1;
break;
}
}
if (match == 0)
{
++errors;
printf ("ERRORS: %s is not unloaded\n", lm->l_name);
}
}
}
for (n = 0; loaded[n] != NULL; n++)
{
if (found[n] == 0)
{
++errors;
printf ("ERRORS: %s is not loaded\n", loaded[n]);
}
}
return errors;
}
int
main (void)
{
void *obj2[2];
void *obj3;
const char *loaded[] = { NULL, NULL, NULL, NULL };
int errors = 0;
printf ("\nThis is what is in memory now:\n");
errors += check_loaded_objects (loaded);
printf( "Loading shared object neededobj3.so\n");
obj3 = dlopen( "neededobj3.so", RTLD_LAZY);
if (obj3 == NULL)
{
printf ("%s\n", dlerror ());
exit (1);
}
loaded[0] = "neededobj1.so";
loaded[1] = "neededobj2.so";
loaded[2] = "neededobj3.so";
errors += check_loaded_objects (loaded);
printf ("Now loading shared object neededobj2.so\n");
obj2[0] = dlopen ("neededobj2.so", RTLD_LAZY);
if (obj2[0] == NULL)
{
printf ("%s\n", dlerror ());
exit (1);
}
errors += check_loaded_objects (loaded);
printf ("And loading shared object neededobj2.so again\n");
obj2[1] = dlopen ("neededobj2.so", RTLD_LAZY);
if (obj2[1] == NULL)
{
printf ("%s\n", dlerror ());
exit (1);
}
errors += check_loaded_objects (loaded);
printf ("Closing neededobj2.so for the first time\n");
dlclose (obj2[0]);
errors += check_loaded_objects (loaded);
printf ("Closing neededobj3.so\n");
dlclose (obj3);
loaded[2] = NULL;
errors += check_loaded_objects (loaded);
printf ("Closing neededobj2.so for the second time\n");
dlclose (obj2[1]);
loaded[0] = NULL;
loaded[1] = NULL;
errors += check_loaded_objects (loaded);
if (errors != 0)
printf ("%d errors found\n", errors);
return errors;
}