forked from OSchip/llvm-project
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
//===-- asan_interceptors.cc ----------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of AddressSanitizer, an address sanity checker.
|
|
//
|
|
// Interceptors for operators new and delete.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "asan_allocator.h"
|
|
#include "asan_internal.h"
|
|
#include "asan_stack.h"
|
|
|
|
#include <stddef.h>
|
|
|
|
namespace __asan {
|
|
// This function is a no-op. We need it to make sure that object file
|
|
// with our replacements will actually be loaded from static ASan
|
|
// run-time library at link-time.
|
|
void ReplaceOperatorsNewAndDelete() { }
|
|
}
|
|
|
|
using namespace __asan; // NOLINT
|
|
|
|
// On Android new() goes through malloc interceptors.
|
|
#if !ASAN_ANDROID
|
|
|
|
// Fake std::nothrow_t to avoid including <new>.
|
|
namespace std {
|
|
struct nothrow_t {};
|
|
} // namespace std
|
|
|
|
#define OPERATOR_NEW_BODY(type) \
|
|
GET_STACK_TRACE_MALLOC;\
|
|
return asan_memalign(0, size, &stack, type);
|
|
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void *operator new(size_t size) { OPERATOR_NEW_BODY(FROM_NEW); }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void *operator new[](size_t size) { OPERATOR_NEW_BODY(FROM_NEW_BR); }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void *operator new(size_t size, std::nothrow_t const&)
|
|
{ OPERATOR_NEW_BODY(FROM_NEW); }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void *operator new[](size_t size, std::nothrow_t const&)
|
|
{ OPERATOR_NEW_BODY(FROM_NEW_BR); }
|
|
|
|
#define OPERATOR_DELETE_BODY(type) \
|
|
GET_STACK_TRACE_FREE;\
|
|
asan_free(ptr, &stack, type);
|
|
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void operator delete(void *ptr) { OPERATOR_DELETE_BODY(FROM_NEW); }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void operator delete[](void *ptr) { OPERATOR_DELETE_BODY(FROM_NEW_BR); }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void operator delete(void *ptr, std::nothrow_t const&)
|
|
{ OPERATOR_DELETE_BODY(FROM_NEW); }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void operator delete[](void *ptr, std::nothrow_t const&)
|
|
{ OPERATOR_DELETE_BODY(FROM_NEW_BR); }
|
|
|
|
#endif
|