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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /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.c | 52 |
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; +} |