diff options
Diffstat (limited to 'memory/jemalloc/src/test/unit/junk.c')
| -rw-r--r-- | memory/jemalloc/src/test/unit/junk.c | 253 |
1 files changed, 0 insertions, 253 deletions
diff --git a/memory/jemalloc/src/test/unit/junk.c b/memory/jemalloc/src/test/unit/junk.c deleted file mode 100644 index 460bd524d..000000000 --- a/memory/jemalloc/src/test/unit/junk.c +++ /dev/null @@ -1,253 +0,0 @@ -#include "test/jemalloc_test.h" - -#ifdef JEMALLOC_FILL -# ifndef JEMALLOC_TEST_JUNK_OPT -# define JEMALLOC_TEST_JUNK_OPT "junk:true" -# endif -const char *malloc_conf = - "abort:false,zero:false,redzone:true,quarantine:0," JEMALLOC_TEST_JUNK_OPT; -#endif - -static arena_dalloc_junk_small_t *arena_dalloc_junk_small_orig; -static arena_dalloc_junk_large_t *arena_dalloc_junk_large_orig; -static huge_dalloc_junk_t *huge_dalloc_junk_orig; -static void *watch_for_junking; -static bool saw_junking; - -static void -watch_junking(void *p) -{ - - watch_for_junking = p; - saw_junking = false; -} - -static void -arena_dalloc_junk_small_intercept(void *ptr, arena_bin_info_t *bin_info) -{ - size_t i; - - arena_dalloc_junk_small_orig(ptr, bin_info); - for (i = 0; i < bin_info->reg_size; i++) { - assert_u_eq(((uint8_t *)ptr)[i], JEMALLOC_FREE_JUNK, - "Missing junk fill for byte %zu/%zu of deallocated region", - i, bin_info->reg_size); - } - if (ptr == watch_for_junking) - saw_junking = true; -} - -static void -arena_dalloc_junk_large_intercept(void *ptr, size_t usize) -{ - size_t i; - - arena_dalloc_junk_large_orig(ptr, usize); - for (i = 0; i < usize; i++) { - assert_u_eq(((uint8_t *)ptr)[i], JEMALLOC_FREE_JUNK, - "Missing junk fill for byte %zu/%zu of deallocated region", - i, usize); - } - if (ptr == watch_for_junking) - saw_junking = true; -} - -static void -huge_dalloc_junk_intercept(void *ptr, size_t usize) -{ - - huge_dalloc_junk_orig(ptr, usize); - /* - * The conditions under which junk filling actually occurs are nuanced - * enough that it doesn't make sense to duplicate the decision logic in - * test code, so don't actually check that the region is junk-filled. - */ - if (ptr == watch_for_junking) - saw_junking = true; -} - -static void -test_junk(size_t sz_min, size_t sz_max) -{ - uint8_t *s; - size_t sz_prev, sz, i; - - if (opt_junk_free) { - arena_dalloc_junk_small_orig = arena_dalloc_junk_small; - arena_dalloc_junk_small = arena_dalloc_junk_small_intercept; - arena_dalloc_junk_large_orig = arena_dalloc_junk_large; - arena_dalloc_junk_large = arena_dalloc_junk_large_intercept; - huge_dalloc_junk_orig = huge_dalloc_junk; - huge_dalloc_junk = huge_dalloc_junk_intercept; - } - - sz_prev = 0; - s = (uint8_t *)mallocx(sz_min, 0); - assert_ptr_not_null((void *)s, "Unexpected mallocx() failure"); - - for (sz = sallocx(s, 0); sz <= sz_max; - sz_prev = sz, sz = sallocx(s, 0)) { - if (sz_prev > 0) { - assert_u_eq(s[0], 'a', - "Previously allocated byte %zu/%zu is corrupted", - ZU(0), sz_prev); - assert_u_eq(s[sz_prev-1], 'a', - "Previously allocated byte %zu/%zu is corrupted", - sz_prev-1, sz_prev); - } - - for (i = sz_prev; i < sz; i++) { - if (opt_junk_alloc) { - assert_u_eq(s[i], JEMALLOC_ALLOC_JUNK, - "Newly allocated byte %zu/%zu isn't " - "junk-filled", i, sz); - } - s[i] = 'a'; - } - - if (xallocx(s, sz+1, 0, 0) == sz) { - watch_junking(s); - s = (uint8_t *)rallocx(s, sz+1, 0); - assert_ptr_not_null((void *)s, - "Unexpected rallocx() failure"); - assert_true(!opt_junk_free || saw_junking, - "Expected region of size %zu to be junk-filled", - sz); - } - } - - watch_junking(s); - dallocx(s, 0); - assert_true(!opt_junk_free || saw_junking, - "Expected region of size %zu to be junk-filled", sz); - - if (opt_junk_free) { - arena_dalloc_junk_small = arena_dalloc_junk_small_orig; - arena_dalloc_junk_large = arena_dalloc_junk_large_orig; - huge_dalloc_junk = huge_dalloc_junk_orig; - } -} - -TEST_BEGIN(test_junk_small) -{ - - test_skip_if(!config_fill); - test_junk(1, SMALL_MAXCLASS-1); -} -TEST_END - -TEST_BEGIN(test_junk_large) -{ - - test_skip_if(!config_fill); - test_junk(SMALL_MAXCLASS+1, large_maxclass); -} -TEST_END - -TEST_BEGIN(test_junk_huge) -{ - - test_skip_if(!config_fill); - test_junk(large_maxclass+1, chunksize*2); -} -TEST_END - -arena_ralloc_junk_large_t *arena_ralloc_junk_large_orig; -static void *most_recently_trimmed; - -static size_t -shrink_size(size_t size) -{ - size_t shrink_size; - - for (shrink_size = size - 1; nallocx(shrink_size, 0) == size; - shrink_size--) - ; /* Do nothing. */ - - return (shrink_size); -} - -static void -arena_ralloc_junk_large_intercept(void *ptr, size_t old_usize, size_t usize) -{ - - arena_ralloc_junk_large_orig(ptr, old_usize, usize); - assert_zu_eq(old_usize, large_maxclass, "Unexpected old_usize"); - assert_zu_eq(usize, shrink_size(large_maxclass), "Unexpected usize"); - most_recently_trimmed = ptr; -} - -TEST_BEGIN(test_junk_large_ralloc_shrink) -{ - void *p1, *p2; - - p1 = mallocx(large_maxclass, 0); - assert_ptr_not_null(p1, "Unexpected mallocx() failure"); - - arena_ralloc_junk_large_orig = arena_ralloc_junk_large; - arena_ralloc_junk_large = arena_ralloc_junk_large_intercept; - - p2 = rallocx(p1, shrink_size(large_maxclass), 0); - assert_ptr_eq(p1, p2, "Unexpected move during shrink"); - - arena_ralloc_junk_large = arena_ralloc_junk_large_orig; - - assert_ptr_eq(most_recently_trimmed, p1, - "Expected trimmed portion of region to be junk-filled"); -} -TEST_END - -static bool detected_redzone_corruption; - -static void -arena_redzone_corruption_replacement(void *ptr, size_t usize, bool after, - size_t offset, uint8_t byte) -{ - - detected_redzone_corruption = true; -} - -TEST_BEGIN(test_junk_redzone) -{ - char *s; - arena_redzone_corruption_t *arena_redzone_corruption_orig; - - test_skip_if(!config_fill); - test_skip_if(!opt_junk_alloc || !opt_junk_free); - - arena_redzone_corruption_orig = arena_redzone_corruption; - arena_redzone_corruption = arena_redzone_corruption_replacement; - - /* Test underflow. */ - detected_redzone_corruption = false; - s = (char *)mallocx(1, 0); - assert_ptr_not_null((void *)s, "Unexpected mallocx() failure"); - s[-1] = 0xbb; - dallocx(s, 0); - assert_true(detected_redzone_corruption, - "Did not detect redzone corruption"); - - /* Test overflow. */ - detected_redzone_corruption = false; - s = (char *)mallocx(1, 0); - assert_ptr_not_null((void *)s, "Unexpected mallocx() failure"); - s[sallocx(s, 0)] = 0xbb; - dallocx(s, 0); - assert_true(detected_redzone_corruption, - "Did not detect redzone corruption"); - - arena_redzone_corruption = arena_redzone_corruption_orig; -} -TEST_END - -int -main(void) -{ - - return (test( - test_junk_small, - test_junk_large, - test_junk_huge, - test_junk_large_ralloc_shrink, - test_junk_redzone)); -} |