mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 15:20:10 +00:00
8699e7b1da
* elf/dl-close.c: Decrement opencount for all dependencies which can be removed even if the object is not yet unloaded. * elf/dl-deps.c (_dl_map_object_deps): If dependency is already in the list decrement opencount of all dependencies. * elf/dl-load.c (_dl_map_object_from_fd): Increment object of object and all dependencies. (_dl_map_object): Likewise. * elf/dl-lookup.c (add_dependency): Likewise. * elf/loadtest.c: Add debug when with more output.
106 lines
2.3 KiB
C
106 lines
2.3 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_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;
|
|
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);
|
|
}
|
|
printf ("And this is what is now in memory\n");
|
|
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 = dlopen ("neededobj2.so", RTLD_LAZY);
|
|
if (obj2 == NULL)
|
|
{
|
|
printf ("%s\n", dlerror ());
|
|
exit (1);
|
|
}
|
|
printf ("Again, this is what is in memory\n");
|
|
errors += check_loaded_objects (loaded);
|
|
printf ("Closing neededobj2.so\n");
|
|
dlclose (obj2);
|
|
errors += check_loaded_objects (loaded);
|
|
printf ("Closing neededobj3.so\n");
|
|
dlclose (obj3);
|
|
loaded[0] = NULL;
|
|
errors += check_loaded_objects (loaded);
|
|
if (errors != 0)
|
|
printf ("%d errors found\n", errors);
|
|
return errors;
|
|
}
|