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| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | malloc/tst-interpose-aux.c | 2 |
2 files changed, 6 insertions, 1 deletions
@@ -1,3 +1,8 @@ +2017-03-21 Stefan Liebler <stli@linux.vnet.ibm.com> + + * malloc/tst-interpose-aux.c (check_for_allocations): + Move compiler barrier before free. + 2017-03-20 Joseph Myers <joseph@codesourcery.com> [BZ #21279] diff --git a/malloc/tst-interpose-aux.c b/malloc/tst-interpose-aux.c index e80e979..68282b4 100644 --- a/malloc/tst-interpose-aux.c +++ b/malloc/tst-interpose-aux.c @@ -113,11 +113,11 @@ check_for_allocations (void) { /* Make sure that malloc is called at least once from libc. */ void *volatile ptr = strdup ("ptr"); - free (ptr); /* Compiler barrier. The strdup function calls malloc, which updates allocation_index, but strdup is marked __THROW, so the compiler could optimize away the reload. */ __asm__ volatile ("" ::: "memory"); + free (ptr); /* If the allocation count is still zero, it means we did not interpose malloc successfully. */ if (allocation_index == 0) |