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author | Frank Ch. Eigler <fche@redhat.com> | 2006-11-10 18:42:28 +0000 |
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committer | Frank Ch. Eigler <fche@gcc.gnu.org> | 2006-11-10 18:42:28 +0000 |
commit | f70d742fc89c922a9ad5508753027eb17827369c (patch) | |
tree | f1e9d593de06af753a78e3763ac0ae92abff57ec /libmudflap/testsuite/libmudflap.cth | |
parent | a6b03a63d60ea2c720d2351812dee479b9137183 (diff) | |
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re PR libmudflap/28578 (A most simple multithreaded program (practically any multithreaded one) causes mudflap violation)
2006-11-10 Frank Ch. Eigler <fche@redhat.com>
PR libmudflap/28578
* mf-hooks1.c (__mf_0fn_malloc): Make the bootstrap buffers
static but not function scope static.
(free): Skip deallocation attempts for objects placed into
bootstrap buffers.
* testsuite/libmudflap.cth/pass59-frag.c: New test.
M libmudflap/mf-hooks1.c
M libmudflap/ChangeLog
A libmudflap/testsuite/libmudflap.cth/pass59-frag.c
From-SVN: r118662
Diffstat (limited to 'libmudflap/testsuite/libmudflap.cth')
-rw-r--r-- | libmudflap/testsuite/libmudflap.cth/pass59-frag.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/libmudflap/testsuite/libmudflap.cth/pass59-frag.c b/libmudflap/testsuite/libmudflap.cth/pass59-frag.c new file mode 100644 index 0000000..bf6c293 --- /dev/null +++ b/libmudflap/testsuite/libmudflap.cth/pass59-frag.c @@ -0,0 +1,39 @@ +#include <stdio.h> +#include <pthread.h> + +/* PR 28578 */ + +void* test_thread(void* arg) +{ + printf("Hello from thread!\n"); + pthread_exit(NULL); + return 0; +} + +int main() +{ + pthread_t thread; + int arg = 0; + pthread_create(&thread, NULL, test_thread, (void*)arg); + pthread_join(thread, NULL); + pthread_exit(NULL); + return 0; +} + +/* { dg-output "Hello from thread!\n" } */ + +#if 0 + +/* Even this test case replicates the problem. However, when built in + static mode, it blows up during __mf_init (?!?!?!) with a + pthread_mutex_lock deadlock error. */ + +#include <stdio.h> +#include <pthread.h> + +int main () +{ + pthread_exit(NULL); + return 0; +} +#endif |