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unittests/SupportTests/Initialize.MultipleThreads: Appease --vg-leak to allocate stack explicitly for glibc. 

llvm-svn: 173350
This commit is contained in:
NAKAMURA Takumi 2013-01-24 14:44:02 +00:00
parent a05a339c96
commit 2998dcbac5
1 changed files with 17 additions and 2 deletions
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19
llvm/unittests/Support/ManagedStatic.cpp
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@ -26,17 +26,32 @@ namespace test1 {
*ms;
return NULL;
}
// Valgrind's leak checker complains glibc's stack allocation.
// To appease valgrind, we provide our own stack for each thread.
void *allocate_stack(pthread_attr_t &a, size_t n = 65536) {
void *stack = malloc(n);
pthread_attr_init(&a);
pthread_attr_setstack(&a, stack, n);
return stack;
}
}
TEST(Initialize, MultipleThreads) {
// Run this test under tsan: http://code.google.com/p/data-race-test/
pthread_attr_t a1, a2;
void *p1 = test1::allocate_stack(a1);
void *p2 = test1::allocate_stack(a2);
llvm_start_multithreaded();
pthread_t t1, t2;
pthread_create(&t1, NULL, test1::helper, NULL);
pthread_create(&t2, NULL, test1::helper, NULL);
pthread_create(&t1, &a1, test1::helper, NULL);
pthread_create(&t2, &a2, test1::helper, NULL);
pthread_join(t1, NULL);
pthread_join(t2, NULL);
free(p1);
free(p2);
llvm_stop_multithreaded();
}
#endif