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// RUN: %clangxx -O2 %s -o %t && %run %t 2>&1 | FileCheck %s
// Malloc/free hooks are not supported on Windows.
// XFAIL: win32
#include <stdlib.h>
#include <unistd.h>
#include <sanitizer/allocator_interface.h>
extern "C" {
const volatile void *global_ptr;
// Note: avoid calling functions that allocate memory in malloc/free
// to avoid infinite recursion.
void __sanitizer_malloc_hook(const volatile void *ptr, size_t sz) {
if (__sanitizer_get_ownership(ptr)) {
write(1, "MallocHook\n", sizeof("MallocHook\n"));
global_ptr = ptr;
}
}
void __sanitizer_free_hook(const volatile void *ptr) {
if (__sanitizer_get_ownership(ptr) && ptr == global_ptr)
write(1, "FreeHook\n", sizeof("FreeHook\n"));
}
} // extern "C"
int main() {
volatile int *x = new int;
// CHECK: MallocHook
// Check that malloc hook was called with correct argument.
if (global_ptr != (void*)x) {
_exit(1);
}
*x = 0;
delete x;
// CHECK: FreeHook
return 0;
}
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