glibc/glibc-rh1817513-6.patch

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commit d330f31af68f96dde82840d1e9343b479a8c179e
Author: Carlos O'Donell <carlos@redhat.com>
Date: Thu Aug 30 11:01:33 2018 -0400
Fix test failure with -DNDEBUG.
The elf/tst-dlopen-aout.c test uses asserts to verify properties of the
test execution. Instead of using assert it should use xpthread_create
and xpthread_join to catch errors starting the threads and fail the
test. This shows up in Fedora 28 when building for i686-pc-linux-gnu
and using gcc 8.1.1.
Tested on i686, and fixes a check failure with -DNDEBUG.
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
diff --git a/elf/tst-dlopen-aout.c b/elf/tst-dlopen-aout.c
index 9038e2096add8798..b0264515cfe62276 100644
--- a/elf/tst-dlopen-aout.c
+++ b/elf/tst-dlopen-aout.c
@@ -27,6 +27,7 @@
#include <dlfcn.h>
#include <stdio.h>
#include <pthread.h>
+#include <support/xthread.h>
__thread int x;
@@ -45,7 +46,6 @@ do_test (int argc, char *argv[])
{
pthread_t thr;
void *p;
- int rc;
p = dlopen (argv[0], RTLD_LAZY);
if (p != NULL)
@@ -53,11 +53,11 @@ do_test (int argc, char *argv[])
fprintf (stderr, "dlopen unexpectedly succeeded\n");
return 1;
}
- rc = pthread_create (&thr, NULL, fn, NULL);
- assert (rc == 0);
-
- rc = pthread_join (thr, NULL);
- assert (rc == 0);
+ /* We create threads to force TLS allocation, which triggers
+ the original bug i.e. running out of surplus slotinfo entries
+ for TLS. */
+ thr = xpthread_create (NULL, fn, NULL);
+ xpthread_join (thr);
}
return 0;