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37 lines
1.2 KiB
37 lines
1.2 KiB
7 years ago
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diff -pruN glibc-2.17-c758a686/nptl/tst-join7mod.c glibc-2.17-c758a686.new/nptl/tst-join7mod.c
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--- glibc-2.17-c758a686/nptl/tst-join7mod.c 2015-08-13 17:06:56.505685552 +0530
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+++ glibc-2.17-c758a686.new/nptl/tst-join7mod.c 2015-08-14 12:42:10.446315345 +0530
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@@ -18,6 +18,7 @@
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<http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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+#include <string.h>
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#include <pthread.h>
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#include <atomic.h>
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@@ -27,7 +28,14 @@ static int running = 1;
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static void *
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test_run (void *p)
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{
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- while (atomic_load_relaxed (&running))
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+ /* Spin on the value of RUNNING till it is 1. The RHEL-7 version of atomic.h
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+ does not yet have an atomic_load. We don't need an acquire/release
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+ barrier either since there is no ordering to worry about, but again,
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+ atomic.h does not have relaxed atomic operations. */
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+ int oldval;
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+ do
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+ oldval = atomic_compare_and_exchange_val_acq (&running, 0, 0);
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+ while (oldval == 1);
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printf ("Test running\n");
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printf ("Test finished\n");
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return NULL;
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@@ -48,7 +56,7 @@ do_init (void)
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static void __attribute__ ((destructor))
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do_end (void)
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{
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- atomic_store_relaxed (&running, 0);
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+ atomic_exchange_rel (&running, 0);
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int ret = pthread_join (th, NULL);
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if (ret != 0)
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