1 files changed, 111 insertions, 0 deletions
diff --git a/deps/jemalloc/test/unit/san_bump.c b/deps/jemalloc/test/unit/san_bump.c
new file mode 100644
index 0000000..cafa37f
--- /dev/null
+++ b/deps/jemalloc/test/unit/san_bump.c
@@ -0,0 +1,111 @@
+#include "test/jemalloc_test.h"
+#include "test/arena_util.h"
+
+#include "jemalloc/internal/arena_structs.h"
+#include "jemalloc/internal/san_bump.h"
+
+TEST_BEGIN(test_san_bump_alloc) {
+	test_skip_if(!maps_coalesce || !opt_retain);
+
+	tsdn_t *tsdn = tsdn_fetch();
+
+	san_bump_alloc_t sba;
+	san_bump_alloc_init(&sba);
+
+	unsigned arena_ind = do_arena_create(0, 0);
+	assert_u_ne(arena_ind, UINT_MAX, "Failed to create an arena");
+
+	arena_t *arena = arena_get(tsdn, arena_ind, false);
+	pac_t *pac = &arena->pa_shard.pac;
+
+	size_t alloc_size = PAGE * 16;
+	size_t alloc_n = alloc_size / sizeof(unsigned);
+	edata_t* edata = san_bump_alloc(tsdn, &sba, pac, pac_ehooks_get(pac),
+	    alloc_size, /* zero */ false);
+
+	expect_ptr_not_null(edata, "Failed to allocate edata");
+	expect_u_eq(edata_arena_ind_get(edata), arena_ind,
+	    "Edata was assigned an incorrect arena id");
+	expect_zu_eq(edata_size_get(edata), alloc_size,
+	    "Allocated edata of incorrect size");
+	expect_false(edata_slab_get(edata),
+	    "Bump allocator incorrectly assigned 'slab' to true");
+	expect_true(edata_committed_get(edata), "Edata is not committed");
+
+	void *ptr = edata_addr_get(edata);
+	expect_ptr_not_null(ptr, "Edata was assigned an invalid address");
+	/* Test that memory is allocated; no guard pages are misplaced */
+	for (unsigned i = 0; i < alloc_n; ++i) {
+		((unsigned *)ptr)[i] = 1;
+	}
+
+	size_t alloc_size2 = PAGE * 28;
+	size_t alloc_n2 = alloc_size / sizeof(unsigned);
+	edata_t *edata2 = san_bump_alloc(tsdn, &sba, pac, pac_ehooks_get(pac),
+	    alloc_size2, /* zero */ true);
+
+	expect_ptr_not_null(edata2, "Failed to allocate edata");
+	expect_u_eq(edata_arena_ind_get(edata2), arena_ind,
+	    "Edata was assigned an incorrect arena id");
+	expect_zu_eq(edata_size_get(edata2), alloc_size2,
+	    "Allocated edata of incorrect size");
+	expect_false(edata_slab_get(edata2),
+	    "Bump allocator incorrectly assigned 'slab' to true");
+	expect_true(edata_committed_get(edata2), "Edata is not committed");
+
+	void *ptr2 = edata_addr_get(edata2);
+	expect_ptr_not_null(ptr, "Edata was assigned an invalid address");
+
+	uintptr_t ptrdiff = ptr2 > ptr ? (uintptr_t)ptr2 - (uintptr_t)ptr
+	    : (uintptr_t)ptr - (uintptr_t)ptr2;
+	size_t between_allocs = (size_t)ptrdiff - alloc_size;
+
+	expect_zu_ge(between_allocs, PAGE,
+	    "Guard page between allocs is missing");
+
+	for (unsigned i = 0; i < alloc_n2; ++i) {
+		expect_u_eq(((unsigned *)ptr2)[i], 0, "Memory is not zeroed");
+	}
+}
+TEST_END
+
+TEST_BEGIN(test_large_alloc_size) {
+	test_skip_if(!maps_coalesce || !opt_retain);
+
+	tsdn_t *tsdn = tsdn_fetch();
+
+	san_bump_alloc_t sba;
+	san_bump_alloc_init(&sba);
+
+	unsigned arena_ind = do_arena_create(0, 0);
+	assert_u_ne(arena_ind, UINT_MAX, "Failed to create an arena");
+
+	arena_t *arena = arena_get(tsdn, arena_ind, false);
+	pac_t *pac = &arena->pa_shard.pac;
+
+	size_t alloc_size = SBA_RETAINED_ALLOC_SIZE * 2;
+	edata_t* edata = san_bump_alloc(tsdn, &sba, pac, pac_ehooks_get(pac),
+	    alloc_size, /* zero */ false);
+	expect_u_eq(edata_arena_ind_get(edata), arena_ind,
+	    "Edata was assigned an incorrect arena id");
+	expect_zu_eq(edata_size_get(edata), alloc_size,
+	    "Allocated edata of incorrect size");
+	expect_false(edata_slab_get(edata),
+	    "Bump allocator incorrectly assigned 'slab' to true");
+	expect_true(edata_committed_get(edata), "Edata is not committed");
+
+	void *ptr = edata_addr_get(edata);
+	expect_ptr_not_null(ptr, "Edata was assigned an invalid address");
+	/* Test that memory is allocated; no guard pages are misplaced */
+	for (unsigned i = 0; i < alloc_size / PAGE; ++i) {
+		*((char *)ptr + PAGE * i) = 1;
+	}
+}
+TEST_END
+
+int
+main(void) {
+	return test(
+	    test_san_bump_alloc,
+	    test_large_alloc_size);
+}