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author | Stan Shebs <stanshebs@google.com> | 2018-05-09 11:28:09 -0700 |
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committer | Stan Shebs <stanshebs@google.com> | 2019-04-30 18:17:39 -0700 |
commit | 2b89ce53dc160974be2a872d0a52950e2ebe5a71 (patch) | |
tree | 42b9a878b419f6df94bf78c9be1a5f3d88a28c90 | |
parent | c3f0d624e9bb869968e447e12ba75caf1a0726c9 (diff) | |
download | glibc-2b89ce53dc160974be2a872d0a52950e2ebe5a71.tar.gz glibc-2b89ce53dc160974be2a872d0a52950e2ebe5a71.tar.xz glibc-2b89ce53dc160974be2a872d0a52950e2ebe5a71.zip |
Defeat a malloc optimization by declaring things volatile.
-rw-r--r-- | malloc/tst-malloc-backtrace.c | 4 | ||||
-rw-r--r-- | malloc/tst-malloc-too-large.c | 2 | ||||
-rw-r--r-- | malloc/tst-malloc.c | 2 | ||||
-rw-r--r-- | malloc/tst-mcheck.c | 2 | ||||
-rw-r--r-- | malloc/tst-valloc.c | 2 |
5 files changed, 6 insertions, 6 deletions
diff --git a/malloc/tst-malloc-backtrace.c b/malloc/tst-malloc-backtrace.c index 8702e7e1c5..4e7fee9fc1 100644 --- a/malloc/tst-malloc-backtrace.c +++ b/malloc/tst-malloc-backtrace.c @@ -35,8 +35,8 @@ call_free (void *ptr) int do_test (void) { - void *ptr1 = malloc (SIZE); - void *ptr2 = malloc (SIZE); + void *volatile ptr1 = malloc (SIZE); + void *volatile ptr2 = malloc (SIZE); /* Avoid unwanted output to TTY after an expected memory corruption. */ ignore_stderr(); diff --git a/malloc/tst-malloc-too-large.c b/malloc/tst-malloc-too-large.c index 15e25f558e..654bc2e408 100644 --- a/malloc/tst-malloc-too-large.c +++ b/malloc/tst-malloc-too-large.c @@ -69,7 +69,7 @@ test_setup (void) static void test_large_allocations (size_t size) { - void * ptr_to_realloc; + void *volatile ptr_to_realloc; test_setup (); TEST_VERIFY (malloc (size) == NULL); diff --git a/malloc/tst-malloc.c b/malloc/tst-malloc.c index f9552226ef..5b62efd998 100644 --- a/malloc/tst-malloc.c +++ b/malloc/tst-malloc.c @@ -33,7 +33,7 @@ merror (const char *msg) static int do_test (void) { - void *p, *q; + void *volatile p, *volatile q; int save; errno = 0; diff --git a/malloc/tst-mcheck.c b/malloc/tst-mcheck.c index ac44cb8a6c..7399b0bb23 100644 --- a/malloc/tst-mcheck.c +++ b/malloc/tst-mcheck.c @@ -33,7 +33,7 @@ merror (const char *msg) static int do_test (void) { - void *p, *q; + void *volatile p, *volatile q; errno = 0; diff --git a/malloc/tst-valloc.c b/malloc/tst-valloc.c index a2e27c1e91..d1c3f81772 100644 --- a/malloc/tst-valloc.c +++ b/malloc/tst-valloc.c @@ -34,7 +34,7 @@ merror (const char *msg) static int do_test (void) { - void *p; + void *volatile p; unsigned long pagesize = getpagesize (); unsigned long ptrval; int save; |