1 // Check that free hook doesn't conflict with Realloc. 2 // RUN: %clangxx_asan -O2 %s -o %t 3 // RUN: %run %t 2>&1 | FileCheck %s 4 5 // FIXME: merge this with the common free_hook_realloc test when we can run 6 // common tests on Windows. 7 8 #include <stdlib.h> 9 #include <io.h> 10 #include <sanitizer/allocator_interface.h> 11 12 static void *glob_ptr; 13 14 extern "C" { 15 void __sanitizer_free_hook(const volatile void *ptr) { 16 if (ptr == glob_ptr) { 17 *(int*)ptr = 0; 18 write(1, "FreeHook\n", sizeof("FreeHook\n")); 19 } 20 } 21 } 22 23 int main() { 24 int *x = (int*)malloc(100); 25 x[0] = 42; 26 glob_ptr = x; 27 int *y = (int*)realloc(x, 200); 28 // Verify that free hook was called and didn't spoil the memory. 29 if (y[0] != 42) { 30 _exit(1); 31 } 32 write(1, "Passed\n", sizeof("Passed\n")); 33 free(y); 34 // CHECK: FreeHook 35 // CHECK: Passed 36 return 0; 37 } 38
