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Implement xdlopen, xdlsym and xdlclose routines which terminate test

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program with appropriate message if the corresponding dlfcn.h routine
returns an error.

Use them in stdlib/tst-tls-atexit.c
This commit is contained in:
Paul Pluzhnikov
2017-09-20 19:37:45 -07:00
parent ae8372d7e4
commit 1cc9e59a93
5 changed files with 108 additions and 23 deletions
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30
stdlib/tst-tls-atexit.c
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@ -31,7 +31,6 @@
second handle. In the end, the DSO should remain loaded due to the
RTLD_NODELETE flag being set in the second dlopen call. */
#include <dlfcn.h>
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
@ -39,6 +38,7 @@
#include <errno.h>
#include <link.h>
#include <stdbool.h>
#include <support/xdlfcn.h>
#ifndef NO_DELETE
# define LOADED_IS_GOOD false
@ -73,18 +73,12 @@ is_loaded (void)
static void *
reg_dtor_and_close (void *h)
{
void (*reg_dtor) (void) = (void (*) (void)) dlsym (h, "reg_dtor");
if (reg_dtor == NULL)
{
printf ("Unable to find symbol: %s\n", dlerror ());
return (void *) (uintptr_t) 1;
}
void (*reg_dtor) (void) = (void (*) (void)) xdlsym (h, "reg_dtor");
reg_dtor ();
#ifndef NO_DELETE
dlclose (h);
xdlclose (h);
#endif
return NULL;
@ -119,32 +113,22 @@ static int
do_test (void)
{
/* Load the DSO. */
void *h1 = dlopen (DSO_NAME, RTLD_LAZY);
if (h1 == NULL)
{
printf ("h1: Unable to load DSO: %s\n", dlerror ());
return 1;
}
void *h1 = xdlopen (DSO_NAME, RTLD_LAZY);
#ifndef NO_DELETE
if (spawn_thread (h1) != 0)
return 1;
#endif
void *h2 = dlopen (DSO_NAME, H2_RTLD_FLAGS);
if (h2 == NULL)
{
printf ("h2: Unable to load DSO: %s\n", dlerror ());
return 1;
}
void *h2 = xdlopen (DSO_NAME, H2_RTLD_FLAGS);
#ifdef NO_DELETE
if (spawn_thread (h1) != 0)
return 1;
dlclose (h1);
xdlclose (h1);
#endif
dlclose (h2);
xdlclose (h2);
/* Check link maps to ensure that the DSO has unloaded. In the normal case,
the DSO should be unloaded if there are no uses. However, if one of the