Beispiel #1
0
TEST_END

TEST_BEGIN(test_oom)
{
	size_t hugemax, size, alignment;

	hugemax = get_huge_size(get_nhuge()-1);

	/*
	 * It should be impossible to allocate two objects that each consume
	 * more than half the virtual address space.
	 */
	{
		void *p;

		p = mallocx(hugemax, 0);
		if (p != NULL) {
			assert_ptr_null(mallocx(hugemax, 0),
			    "Expected OOM for mallocx(size=%#zx, 0)", hugemax);
			dallocx(p, 0);
		}
	}

#if LG_SIZEOF_PTR == 3
	size      = ZU(0x8000000000000000);
	alignment = ZU(0x8000000000000000);
#else
	size      = ZU(0x80000000);
	alignment = ZU(0x80000000);
#endif
	assert_ptr_null(mallocx(size, MALLOCX_ALIGN(alignment)),
	    "Expected OOM for mallocx(size=%#zx, MALLOCX_ALIGN(%#zx)", size,
	    alignment);
}
Beispiel #2
0
TEST_END

TEST_BEGIN(test_extra_small)
{
	size_t small0, small1, hugemax;
	void *p;

	/* Get size classes. */
	small0 = get_small_size(0);
	small1 = get_small_size(1);
	hugemax = get_huge_size(get_nhuge()-1);

	p = mallocx(small0, 0);
	assert_ptr_not_null(p, "Unexpected mallocx() error");

	assert_zu_eq(xallocx(p, small1, 0, 0), small0,
	    "Unexpected xallocx() behavior");

	assert_zu_eq(xallocx(p, small1, 0, 0), small0,
	    "Unexpected xallocx() behavior");

	assert_zu_eq(xallocx(p, small0, small1 - small0, 0), small0,
	    "Unexpected xallocx() behavior");

	/* Test size+extra overflow. */
	assert_zu_eq(xallocx(p, small0, hugemax - small0 + 1, 0), small0,
	    "Unexpected xallocx() behavior");
	assert_zu_eq(xallocx(p, small0, SIZE_T_MAX - small0, 0), small0,
	    "Unexpected xallocx() behavior");

	dallocx(p, 0);
}
Beispiel #3
0
TEST_END

TEST_BEGIN(test_size_extra_overflow)
{
	size_t small0, hugemax;
	void *p;

	/* Get size classes. */
	small0 = get_small_size(0);
	hugemax = get_huge_size(get_nhuge()-1);

	p = mallocx(small0, 0);
	assert_ptr_not_null(p, "Unexpected mallocx() error");

	/* Test overflows that can be resolved by clamping extra. */
	assert_zu_le(xallocx(p, hugemax-1, 2, 0), hugemax,
	    "Unexpected xallocx() behavior");
	assert_zu_le(xallocx(p, hugemax, 1, 0), hugemax,
	    "Unexpected xallocx() behavior");

	/* Test overflow such that hugemax-size underflows. */
	assert_zu_le(xallocx(p, hugemax+1, 2, 0), hugemax,
	    "Unexpected xallocx() behavior");
	assert_zu_le(xallocx(p, hugemax+2, 3, 0), hugemax,
	    "Unexpected xallocx() behavior");
	assert_zu_le(xallocx(p, SIZE_T_MAX-2, 2, 0), hugemax,
	    "Unexpected xallocx() behavior");
	assert_zu_le(xallocx(p, SIZE_T_MAX-1, 1, 0), hugemax,
	    "Unexpected xallocx() behavior");

	dallocx(p, 0);
}
Beispiel #4
0
TEST_END

TEST_BEGIN(test_oom)
{
	size_t hugemax;
	bool oom;
	void *ptrs[3];
	unsigned i;

	/*
	 * It should be impossible to allocate three objects that each consume
	 * nearly half the virtual address space.
	 */
	hugemax = get_huge_size(get_nhuge()-1);
	oom = false;
	for (i = 0; i < sizeof(ptrs) / sizeof(void *); i++) {
		ptrs[i] = mallocx(hugemax, 0);
		if (ptrs[i] == NULL)
			oom = true;
	}
	assert_true(oom,
	    "Expected OOM during series of calls to mallocx(size=%zu, 0)",
	    hugemax);
	for (i = 0; i < sizeof(ptrs) / sizeof(void *); i++) {
		if (ptrs[i] != NULL)
			dallocx(ptrs[i], 0);
	}

#if LG_SIZEOF_PTR == 3
	assert_ptr_null(mallocx(0x8000000000000000ULL,
	    MALLOCX_ALIGN(0x8000000000000000ULL)),
	    "Expected OOM for mallocx()");
	assert_ptr_null(mallocx(0x8000000000000000ULL,
	    MALLOCX_ALIGN(0x80000000)),
	    "Expected OOM for mallocx()");
#else
	assert_ptr_null(mallocx(0x80000000UL, MALLOCX_ALIGN(0x80000000UL)),
	    "Expected OOM for mallocx()");
#endif
}
Beispiel #5
0
TEST_END

TEST_BEGIN(test_extra_huge)
{
	int flags = MALLOCX_ARENA(arena_ind());
	size_t largemax, huge1, huge2, huge3, hugemax;
	void *p;

	/* Get size classes. */
	largemax = get_large_size(get_nlarge()-1);
	huge1 = get_huge_size(1);
	huge2 = get_huge_size(2);
	huge3 = get_huge_size(3);
	hugemax = get_huge_size(get_nhuge()-1);

	p = mallocx(huge3, flags);
	assert_ptr_not_null(p, "Unexpected mallocx() error");

	assert_zu_eq(xallocx(p, huge3, 0, flags), huge3,
	    "Unexpected xallocx() behavior");
	/* Test size decrease with zero extra. */
	assert_zu_ge(xallocx(p, huge1, 0, flags), huge1,
	    "Unexpected xallocx() behavior");
	assert_zu_ge(xallocx(p, largemax, 0, flags), huge1,
	    "Unexpected xallocx() behavior");

	assert_zu_eq(xallocx(p, huge3, 0, flags), huge3,
	    "Unexpected xallocx() behavior");
	/* Test size decrease with non-zero extra. */
	assert_zu_eq(xallocx(p, huge1, huge3 - huge1, flags), huge3,
	    "Unexpected xallocx() behavior");
	assert_zu_eq(xallocx(p, huge2, huge3 - huge2, flags), huge3,
	    "Unexpected xallocx() behavior");
	assert_zu_eq(xallocx(p, huge1, huge2 - huge1, flags), huge2,
	    "Unexpected xallocx() behavior");
	assert_zu_ge(xallocx(p, largemax, huge1 - largemax, flags), huge1,
	    "Unexpected xallocx() behavior");

	assert_zu_ge(xallocx(p, huge1, 0, flags), huge1,
	    "Unexpected xallocx() behavior");
	/* Test size increase with zero extra. */
	assert_zu_le(xallocx(p, huge3, 0, flags), huge3,
	    "Unexpected xallocx() behavior");
	assert_zu_le(xallocx(p, hugemax+1, 0, flags), huge3,
	    "Unexpected xallocx() behavior");

	assert_zu_ge(xallocx(p, huge1, 0, flags), huge1,
	    "Unexpected xallocx() behavior");
	/* Test size increase with non-zero extra. */
	assert_zu_le(xallocx(p, huge1, SIZE_T_MAX - huge1, flags), hugemax,
	    "Unexpected xallocx() behavior");

	assert_zu_ge(xallocx(p, huge1, 0, flags), huge1,
	    "Unexpected xallocx() behavior");
	/* Test size increase with non-zero extra. */
	assert_zu_le(xallocx(p, huge1, huge3 - huge1, flags), huge3,
	    "Unexpected xallocx() behavior");

	assert_zu_eq(xallocx(p, huge3, 0, flags), huge3,
	    "Unexpected xallocx() behavior");
	/* Test size+extra overflow. */
	assert_zu_le(xallocx(p, huge3, hugemax - huge3 + 1, flags), hugemax,
	    "Unexpected xallocx() behavior");

	dallocx(p, flags);
}
Beispiel #6
0
TEST_END

TEST_BEGIN(test_extra_large)
{
	int flags = MALLOCX_ARENA(arena_ind());
	size_t smallmax, large0, large1, large2, huge0, hugemax;
	void *p;

	/* Get size classes. */
	smallmax = get_small_size(get_nsmall()-1);
	large0 = get_large_size(0);
	large1 = get_large_size(1);
	large2 = get_large_size(2);
	huge0 = get_huge_size(0);
	hugemax = get_huge_size(get_nhuge()-1);

	p = mallocx(large2, flags);
	assert_ptr_not_null(p, "Unexpected mallocx() error");

	assert_zu_eq(xallocx(p, large2, 0, flags), large2,
	    "Unexpected xallocx() behavior");
	/* Test size decrease with zero extra. */
	assert_zu_eq(xallocx(p, large0, 0, flags), large0,
	    "Unexpected xallocx() behavior");
	assert_zu_eq(xallocx(p, smallmax, 0, flags), large0,
	    "Unexpected xallocx() behavior");

	assert_zu_eq(xallocx(p, large2, 0, flags), large2,
	    "Unexpected xallocx() behavior");
	/* Test size decrease with non-zero extra. */
	assert_zu_eq(xallocx(p, large0, large2 - large0, flags), large2,
	    "Unexpected xallocx() behavior");
	assert_zu_eq(xallocx(p, large1, large2 - large1, flags), large2,
	    "Unexpected xallocx() behavior");
	assert_zu_eq(xallocx(p, large0, large1 - large0, flags), large1,
	    "Unexpected xallocx() behavior");
	assert_zu_eq(xallocx(p, smallmax, large0 - smallmax, flags), large0,
	    "Unexpected xallocx() behavior");

	assert_zu_eq(xallocx(p, large0, 0, flags), large0,
	    "Unexpected xallocx() behavior");
	/* Test size increase with zero extra. */
	assert_zu_eq(xallocx(p, large2, 0, flags), large2,
	    "Unexpected xallocx() behavior");
	assert_zu_eq(xallocx(p, huge0, 0, flags), large2,
	    "Unexpected xallocx() behavior");

	assert_zu_eq(xallocx(p, large0, 0, flags), large0,
	    "Unexpected xallocx() behavior");
	/* Test size increase with non-zero extra. */
	assert_zu_lt(xallocx(p, large0, huge0 - large0, flags), huge0,
	    "Unexpected xallocx() behavior");

	assert_zu_eq(xallocx(p, large0, 0, flags), large0,
	    "Unexpected xallocx() behavior");
	/* Test size increase with non-zero extra. */
	assert_zu_eq(xallocx(p, large0, large2 - large0, flags), large2,
	    "Unexpected xallocx() behavior");

	assert_zu_eq(xallocx(p, large2, 0, flags), large2,
	    "Unexpected xallocx() behavior");
	/* Test size+extra overflow. */
	assert_zu_lt(xallocx(p, large2, hugemax - large2 + 1, flags), huge0,
	    "Unexpected xallocx() behavior");

	dallocx(p, flags);
}