61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
// RUN: %clangxx -O0 -g %s -o %t && %run %t
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// Must not be implemented, no other reason to install interceptors.
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// XFAIL: ubsan
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#include <assert.h>
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#include <sanitizer/allocator_interface.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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// Based on lib/msan/tests/msan_test.cpp::get_allocated_size_and_ownership
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int main(void) {
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int sizes[] = {10, 100, 1000, 10000, 100000, 1000000};
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for (int i = 0; i < sizeof(sizes) / sizeof(int); i++) {
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printf("Testing size %d\n", sizes[i]);
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char *array = reinterpret_cast<char *>(malloc(sizes[i]));
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int *int_ptr = new int;
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printf("array: %p\n", array);
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printf("int_ptr: %p\n", int_ptr);
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// Bogus value to unpoison start. Calling __sanitizer_get_allocated_begin
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// does not unpoison it.
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const void *start = NULL;
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for (int j = 0; j < sizes[i]; j++) {
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start = __sanitizer_get_allocated_begin(array + j);
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if (array != start) {
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printf("j: %d\n", j);
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printf("Start: %p (expected: %p)\n", start, array);
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fflush(stdout);
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}
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assert(array == start);
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}
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start = __sanitizer_get_allocated_begin(int_ptr);
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assert(int_ptr == start);
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void *wild_addr = reinterpret_cast<void *>(4096 * 160);
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assert(__sanitizer_get_allocated_begin(wild_addr) == NULL);
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wild_addr = reinterpret_cast<void *>(0x1);
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assert(__sanitizer_get_allocated_begin(wild_addr) == NULL);
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// NULL is a valid argument for GetAllocatedSize but is not owned.
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assert(__sanitizer_get_allocated_begin(NULL) == NULL);
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free(array);
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for (int j = 0; j < sizes[i]; j++) {
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assert(__sanitizer_get_allocated_begin(array + j) == NULL);
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}
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delete int_ptr;
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assert(__sanitizer_get_allocated_begin(int_ptr) == NULL);
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}
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return 0;
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}
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