a184d3fcde
Fix/remove three related flawed tests that attempted to cause OOM due to large request size and alignment constraint. Although these tests "passed" on 64-bit systems due to the virtual memory hole, they could pass on some 32-bit systems.
126 lines
2.7 KiB
C
126 lines
2.7 KiB
C
#include "test/jemalloc_test.h"
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#define CHUNK 0x400000
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/* #define MAXALIGN ((size_t)UINT64_C(0x80000000000)) */
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#define MAXALIGN ((size_t)0x2000000LU)
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#define NITER 4
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TEST_BEGIN(test_alignment_errors)
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{
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size_t alignment;
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void *p;
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alignment = 0;
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set_errno(0);
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p = aligned_alloc(alignment, 1);
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assert_false(p != NULL || get_errno() != EINVAL,
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"Expected error for invalid alignment %zu", alignment);
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for (alignment = sizeof(size_t); alignment < MAXALIGN;
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alignment <<= 1) {
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set_errno(0);
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p = aligned_alloc(alignment + 1, 1);
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assert_false(p != NULL || get_errno() != EINVAL,
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"Expected error for invalid alignment %zu",
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alignment + 1);
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}
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}
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TEST_END
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TEST_BEGIN(test_oom_errors)
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{
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size_t alignment, size;
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void *p;
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#if LG_SIZEOF_PTR == 3
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alignment = UINT64_C(0x8000000000000000);
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size = UINT64_C(0x8000000000000000);
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#else
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alignment = 0x80000000LU;
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size = 0x80000000LU;
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#endif
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set_errno(0);
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p = aligned_alloc(alignment, size);
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assert_false(p != NULL || get_errno() != ENOMEM,
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"Expected error for aligned_alloc(%zu, %zu)",
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alignment, size);
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#if LG_SIZEOF_PTR == 3
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alignment = UINT64_C(0x4000000000000000);
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size = UINT64_C(0xc000000000000001);
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#else
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alignment = 0x40000000LU;
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size = 0xc0000001LU;
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#endif
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set_errno(0);
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p = aligned_alloc(alignment, size);
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assert_false(p != NULL || get_errno() != ENOMEM,
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"Expected error for aligned_alloc(%zu, %zu)",
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alignment, size);
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alignment = 0x10LU;
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#if LG_SIZEOF_PTR == 3
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size = UINT64_C(0xfffffffffffffff0);
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#else
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size = 0xfffffff0LU;
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#endif
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set_errno(0);
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p = aligned_alloc(alignment, size);
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assert_false(p != NULL || get_errno() != ENOMEM,
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"Expected error for aligned_alloc(&p, %zu, %zu)",
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alignment, size);
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}
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TEST_END
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TEST_BEGIN(test_alignment_and_size)
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{
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size_t alignment, size, total;
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unsigned i;
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void *ps[NITER];
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for (i = 0; i < NITER; i++)
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ps[i] = NULL;
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for (alignment = 8;
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alignment <= MAXALIGN;
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alignment <<= 1) {
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total = 0;
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for (size = 1;
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size < 3 * alignment && size < (1U << 31);
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size += (alignment >> (LG_SIZEOF_PTR-1)) - 1) {
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for (i = 0; i < NITER; i++) {
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ps[i] = aligned_alloc(alignment, size);
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if (ps[i] == NULL) {
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char buf[BUFERROR_BUF];
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buferror(get_errno(), buf, sizeof(buf));
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test_fail(
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"Error for alignment=%zu, "
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"size=%zu (%#zx): %s",
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alignment, size, size, buf);
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}
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total += malloc_usable_size(ps[i]);
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if (total >= (MAXALIGN << 1))
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break;
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}
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for (i = 0; i < NITER; i++) {
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if (ps[i] != NULL) {
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free(ps[i]);
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ps[i] = NULL;
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}
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}
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}
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}
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}
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TEST_END
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int
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main(void)
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{
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return (test(
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test_alignment_errors,
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test_oom_errors,
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test_alignment_and_size));
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}
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