diff options
Diffstat (limited to 'malloc/tst-mallocstate.c')
| -rw-r--r-- | malloc/tst-mallocstate.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/malloc/tst-mallocstate.c b/malloc/tst-mallocstate.c index 7e081c548a..bd6678e1aa 100644 --- a/malloc/tst-mallocstate.c +++ b/malloc/tst-mallocstate.c @@ -186,6 +186,10 @@ struct allocation unsigned int seed; }; +/* After heap initialization, we can call malloc_usable_size to check + if it gives valid results. */ +static bool malloc_usable_size_valid; + /* Check that the allocation task allocation has the expected contents. */ static void @@ -221,6 +225,23 @@ check_allocation (const struct allocation *alloc, int index) putc ('\n', stdout); errors = true; } + + if (malloc_usable_size_valid) + { + size_t usable = malloc_usable_size (alloc->data); + if (usable < size) + { + printf ("error: allocation %d has reported size %zu (expected %zu)\n", + index, usable, size); + errors = true; + } + else if (usable > size + 4096) + { + printf ("error: allocation %d reported as %zu bytes (requested %zu)\n", + index, usable, size); + errors = true; + } + } } /* A heap allocation combined with pending actions on it. */ @@ -317,6 +338,10 @@ init_heap (void) write_message ("error: malloc_set_state failed\n"); _exit (1); } + + /* The heap has been initialized. We may now call + malloc_usable_size. */ + malloc_usable_size_valid = true; } /* Interpose the initialization callback. */ |