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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/torture/tls/tls-test.c
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Diffstat (limited to 'gcc/testsuite/gcc.dg/torture/tls/tls-test.c')
-rw-r--r--gcc/testsuite/gcc.dg/torture/tls/tls-test.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/torture/tls/tls-test.c b/gcc/testsuite/gcc.dg/torture/tls/tls-test.c
new file mode 100644
index 000000000..8a23e77c1
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/tls/tls-test.c
@@ -0,0 +1,52 @@
+/* { dg-do run } */
+/* { dg-require-effective-target tls } */
+/* { dg-require-effective-target pthread } */
+/* { dg-options "-pthread" } */
+
+#include <pthread.h>
+extern int printf (char *,...);
+__thread int a = 5;
+int *volatile a_in_other_thread = (int *) 12345;
+
+static void *
+thread_func (void *arg)
+{
+ a_in_other_thread = &a;
+ a+=5;
+ *((int *) arg) = a;
+ return (void *)0;
+}
+
+int
+main ()
+{
+ pthread_t thread;
+ void *thread_retval;
+ int *volatile a_in_main_thread;
+ int *volatile again ;
+ int thr_a;
+
+ a_in_main_thread = &a;
+
+ if (pthread_create (&thread, (pthread_attr_t *)0, thread_func, &thr_a))
+ return 0;
+
+ if (pthread_join (thread, &thread_retval))
+ return 0;
+
+ again = &a;
+ if (again != a_in_main_thread)
+ {
+ printf ("FAIL: main thread addy changed from 0x%0x to 0x%0x\n",
+ a_in_other_thread, again);
+ return 1;
+ }
+
+ if (a != 5 || thr_a != 10 || (a_in_other_thread == a_in_main_thread))
+ {
+ printf ("FAIL: a= %d, thr_a = %d Addr = 0x%0x\n",
+ a, thr_a, a_in_other_thread);
+ return 1;
+ }
+ return 0;
+}