61 lines · cpp
1// RUN: %clangxx -O0 -g %s -o %t && %run %t2 3// Must not be implemented, no other reason to install interceptors.4// XFAIL: ubsan5 6#include <assert.h>7#include <sanitizer/allocator_interface.h>8#include <stdio.h>9#include <stdlib.h>10#include <string.h>11 12// Based on lib/msan/tests/msan_test.cpp::get_allocated_size_and_ownership13int main(void) {14 int sizes[] = {10, 100, 1000, 10000, 100000, 1000000};15 16 for (int i = 0; i < sizeof(sizes) / sizeof(int); i++) {17 printf("Testing size %d\n", sizes[i]);18 19 char *array = reinterpret_cast<char *>(malloc(sizes[i]));20 int *int_ptr = new int;21 printf("array: %p\n", array);22 printf("int_ptr: %p\n", int_ptr);23 24 // Bogus value to unpoison start. Calling __sanitizer_get_allocated_begin25 // does not unpoison it.26 const void *start = NULL;27 for (int j = 0; j < sizes[i]; j++) {28 29 start = __sanitizer_get_allocated_begin(array + j);30 if (array != start) {31 printf("j: %d\n", j);32 printf("Start: %p (expected: %p)\n", start, array);33 fflush(stdout);34 }35 assert(array == start);36 }37 38 start = __sanitizer_get_allocated_begin(int_ptr);39 assert(int_ptr == start);40 41 void *wild_addr = reinterpret_cast<void *>(4096 * 160);42 assert(__sanitizer_get_allocated_begin(wild_addr) == NULL);43 44 wild_addr = reinterpret_cast<void *>(0x1);45 assert(__sanitizer_get_allocated_begin(wild_addr) == NULL);46 47 // NULL is a valid argument for GetAllocatedSize but is not owned.48 assert(__sanitizer_get_allocated_begin(NULL) == NULL);49 50 free(array);51 for (int j = 0; j < sizes[i]; j++) {52 assert(__sanitizer_get_allocated_begin(array + j) == NULL);53 }54 55 delete int_ptr;56 assert(__sanitizer_get_allocated_begin(int_ptr) == NULL);57 }58 59 return 0;60}61