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327c379862
We know we are overflowing the maximum allocation: it's what we're testing for. https://bugzilla.gnome.org/show_bug.cgi?id=794732
244 lines
7.5 KiB
C
244 lines
7.5 KiB
C
/* Unit tests for g
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* Copyright (C) 2010 Red Hat, Inc.
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*
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* This work is provided "as is"; redistribution and modification
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* in whole or in part, in any medium, physical or electronic is
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* permitted without restriction.
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*
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* This work is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* In no event shall the authors or contributors be liable for any
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* direct, indirect, incidental, special, exemplary, or consequential
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* damages (including, but not limited to, procurement of substitute
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* goods or services; loss of use, data, or profits; or business
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* interruption) however caused and on any theory of liability, whether
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* in contract, strict liability, or tort (including negligence or
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* otherwise) arising in any way out of the use of this software, even
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* if advised of the possibility of such damage.
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*/
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/* We test for errors in optimize-only definitions in gmem.h */
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#ifdef __GNUC__
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#pragma GCC optimize (1)
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Walloc-size-larger-than="
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#endif
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#include "glib.h"
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#include <stdlib.h>
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static gsize a = G_MAXSIZE / 10 + 10;
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static gsize b = 10;
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typedef char X[10];
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#define MEM_OVERFLOW_TEST(name, code) \
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static void \
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mem_overflow_ ## name (void) \
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{ \
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gpointer p; \
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code; \
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g_free (p); \
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exit (0); \
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}
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MEM_OVERFLOW_TEST (malloc_n_a_a, p = g_malloc_n (a, a))
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MEM_OVERFLOW_TEST (malloc_n_a_b, p = g_malloc_n (a, b))
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MEM_OVERFLOW_TEST (malloc_n_b_a, p = g_malloc_n (b, a))
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MEM_OVERFLOW_TEST (malloc_n_b_b, p = g_malloc_n (b, b))
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MEM_OVERFLOW_TEST (malloc0_n_a_a, p = g_malloc0_n (a, a))
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MEM_OVERFLOW_TEST (malloc0_n_a_b, p = g_malloc0_n (a, b))
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MEM_OVERFLOW_TEST (malloc0_n_b_a, p = g_malloc0_n (b, a))
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MEM_OVERFLOW_TEST (malloc0_n_b_b, p = g_malloc0_n (b, b))
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MEM_OVERFLOW_TEST (realloc_n_a_a, p = g_malloc (1); p = g_realloc_n (p, a, a))
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MEM_OVERFLOW_TEST (realloc_n_a_b, p = g_malloc (1); p = g_realloc_n (p, a, b))
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MEM_OVERFLOW_TEST (realloc_n_b_a, p = g_malloc (1); p = g_realloc_n (p, b, a))
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MEM_OVERFLOW_TEST (realloc_n_b_b, p = g_malloc (1); p = g_realloc_n (p, b, b))
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MEM_OVERFLOW_TEST (new_a, p = g_new (X, a))
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MEM_OVERFLOW_TEST (new_b, p = g_new (X, b))
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MEM_OVERFLOW_TEST (new0_a, p = g_new0 (X, a))
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MEM_OVERFLOW_TEST (new0_b, p = g_new0 (X, b))
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MEM_OVERFLOW_TEST (renew_a, p = g_malloc (1); p = g_renew (X, p, a))
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MEM_OVERFLOW_TEST (renew_b, p = g_malloc (1); p = g_renew (X, p, b))
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static void
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mem_overflow_malloc_0 (void)
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{
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gpointer p;
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p = g_malloc (0);
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g_assert (p == NULL);
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}
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static void
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mem_overflow_realloc_0 (void)
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{
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gpointer p;
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p = g_malloc (10);
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g_assert (p != NULL);
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p = g_realloc (p, 0);
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g_assert (p == NULL);
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}
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static void
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mem_overflow (void)
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{
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gpointer p, q;
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/* "FAIL" here apparently means "fail to overflow"... */
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#define CHECK_PASS(P) p = (P); g_assert (p == NULL);
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#define CHECK_FAIL(P) p = (P); g_assert (p != NULL);
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CHECK_PASS (g_try_malloc_n (a, a));
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CHECK_PASS (g_try_malloc_n (a, b));
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CHECK_PASS (g_try_malloc_n (b, a));
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CHECK_FAIL (g_try_malloc_n (b, b));
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g_free (p);
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CHECK_PASS (g_try_malloc0_n (a, a));
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CHECK_PASS (g_try_malloc0_n (a, b));
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CHECK_PASS (g_try_malloc0_n (b, a));
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CHECK_FAIL (g_try_malloc0_n (b, b));
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g_free (p);
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q = g_malloc (1);
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CHECK_PASS (g_try_realloc_n (q, a, a));
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CHECK_PASS (g_try_realloc_n (q, a, b));
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CHECK_PASS (g_try_realloc_n (q, b, a));
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CHECK_FAIL (g_try_realloc_n (q, b, b));
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g_free (p);
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CHECK_PASS (g_try_new (X, a));
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CHECK_FAIL (g_try_new (X, b));
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g_free (p);
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CHECK_PASS (g_try_new0 (X, a));
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CHECK_FAIL (g_try_new0 (X, b));
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g_free (p);
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q = g_try_malloc (1);
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CHECK_PASS (g_try_renew (X, q, a));
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CHECK_FAIL (g_try_renew (X, q, b));
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free (p);
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#define CHECK_SUBPROCESS_FAIL(name) do { \
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if (g_test_undefined ()) \
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{ \
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g_test_trap_subprocess ("/mem/overflow/subprocess/" #name, 0, 0); \
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g_test_trap_assert_failed(); \
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} \
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} while (0)
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#define CHECK_SUBPROCESS_PASS(name) do { \
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if (g_test_undefined ()) \
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{ \
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g_test_trap_subprocess ("/mem/overflow/subprocess/" #name, 0, 0); \
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g_test_trap_assert_passed(); \
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} \
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} while (0)
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CHECK_SUBPROCESS_FAIL (malloc_n_a_a);
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CHECK_SUBPROCESS_FAIL (malloc_n_a_b);
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CHECK_SUBPROCESS_FAIL (malloc_n_b_a);
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CHECK_SUBPROCESS_PASS (malloc_n_b_b);
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CHECK_SUBPROCESS_FAIL (malloc0_n_a_a);
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CHECK_SUBPROCESS_FAIL (malloc0_n_a_b);
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CHECK_SUBPROCESS_FAIL (malloc0_n_b_a);
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CHECK_SUBPROCESS_PASS (malloc0_n_b_b);
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CHECK_SUBPROCESS_FAIL (realloc_n_a_a);
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CHECK_SUBPROCESS_FAIL (realloc_n_a_b);
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CHECK_SUBPROCESS_FAIL (realloc_n_b_a);
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CHECK_SUBPROCESS_PASS (realloc_n_b_b);
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CHECK_SUBPROCESS_FAIL (new_a);
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CHECK_SUBPROCESS_PASS (new_b);
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CHECK_SUBPROCESS_FAIL (new0_a);
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CHECK_SUBPROCESS_PASS (new0_b);
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CHECK_SUBPROCESS_FAIL (renew_a);
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CHECK_SUBPROCESS_PASS (renew_b);
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CHECK_SUBPROCESS_PASS (malloc_0);
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CHECK_SUBPROCESS_PASS (realloc_0);
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}
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#ifdef __GNUC__
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typedef struct
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{
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} Empty;
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static void
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empty_alloc_subprocess (void)
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{
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Empty *empty;
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empty = g_new0 (Empty, 1);
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g_assert (empty == NULL);
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exit (0);
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}
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static void
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empty_alloc (void)
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{
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g_test_bug ("615379");
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g_assert_cmpint (sizeof (Empty), ==, 0);
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g_test_trap_subprocess ("/mem/empty-alloc/subprocess", 0, 0);
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g_test_trap_assert_passed ();
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}
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#endif
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#ifdef __GNUC__
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#pragma GCC diagnostic pop
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#endif
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int
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main (int argc,
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char *argv[])
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{
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g_test_init (&argc, &argv, NULL);
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g_test_bug_base ("http://bugzilla.gnome.org/");
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g_test_add_func ("/mem/overflow", mem_overflow);
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g_test_add_func ("/mem/overflow/subprocess/malloc_n_a_a", mem_overflow_malloc_n_a_a);
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g_test_add_func ("/mem/overflow/subprocess/malloc_n_a_b", mem_overflow_malloc_n_a_b);
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g_test_add_func ("/mem/overflow/subprocess/malloc_n_b_a", mem_overflow_malloc_n_b_a);
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g_test_add_func ("/mem/overflow/subprocess/malloc_n_b_b", mem_overflow_malloc_n_b_b);
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g_test_add_func ("/mem/overflow/subprocess/malloc0_n_a_a", mem_overflow_malloc0_n_a_a);
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g_test_add_func ("/mem/overflow/subprocess/malloc0_n_a_b", mem_overflow_malloc0_n_a_b);
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g_test_add_func ("/mem/overflow/subprocess/malloc0_n_b_a", mem_overflow_malloc0_n_b_a);
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g_test_add_func ("/mem/overflow/subprocess/malloc0_n_b_b", mem_overflow_malloc0_n_b_b);
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g_test_add_func ("/mem/overflow/subprocess/realloc_n_a_a", mem_overflow_realloc_n_a_a);
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g_test_add_func ("/mem/overflow/subprocess/realloc_n_a_b", mem_overflow_realloc_n_a_b);
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g_test_add_func ("/mem/overflow/subprocess/realloc_n_b_a", mem_overflow_realloc_n_b_a);
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g_test_add_func ("/mem/overflow/subprocess/realloc_n_b_b", mem_overflow_realloc_n_b_b);
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g_test_add_func ("/mem/overflow/subprocess/new_a", mem_overflow_new_a);
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g_test_add_func ("/mem/overflow/subprocess/new_b", mem_overflow_new_b);
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g_test_add_func ("/mem/overflow/subprocess/new0_a", mem_overflow_new0_a);
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g_test_add_func ("/mem/overflow/subprocess/new0_b", mem_overflow_new0_b);
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g_test_add_func ("/mem/overflow/subprocess/renew_a", mem_overflow_renew_a);
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g_test_add_func ("/mem/overflow/subprocess/renew_b", mem_overflow_renew_b);
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g_test_add_func ("/mem/overflow/subprocess/malloc_0", mem_overflow_malloc_0);
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g_test_add_func ("/mem/overflow/subprocess/realloc_0", mem_overflow_realloc_0);
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#ifdef __GNUC__
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g_test_add_func ("/mem/empty-alloc", empty_alloc);
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g_test_add_func ("/mem/empty-alloc/subprocess", empty_alloc_subprocess);
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#endif
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return g_test_run();
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}
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