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