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// RUN: %clangxx_msan -O2 %s -o %t
// RUN: %t 2>&1 | FileCheck %s
#include <stdlib.h>
#include <unistd.h>
extern "C" {
int __msan_get_ownership(const void *p);
void *global_ptr;
// Note: avoid calling functions that allocate memory in malloc/free
// to avoid infinite recursion.
void __msan_malloc_hook(void *ptr, size_t sz) {
if (__msan_get_ownership(ptr)) {
write(1, "MallocHook\n", sizeof("MallocHook\n"));
global_ptr = ptr;
}
}
void __msan_free_hook(void *ptr) {
if (__msan_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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