f4341a5a66
builtins, and also the various sanitizers. Support for these will be added in a later commit.
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
//===-- msan_new_delete.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 MemorySanitizer.
|
|
//
|
|
// Interceptors for operators new and delete.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "msan.h"
|
|
#include "interception/interception.h"
|
|
|
|
#if MSAN_REPLACE_OPERATORS_NEW_AND_DELETE
|
|
|
|
#include <stddef.h>
|
|
|
|
namespace __msan {
|
|
// This function is a no-op. We need it to make sure that object file
|
|
// with our replacements will actually be loaded from static MSan
|
|
// run-time library at link-time.
|
|
void ReplaceOperatorsNewAndDelete() { }
|
|
}
|
|
|
|
using namespace __msan; // NOLINT
|
|
|
|
// Fake std::nothrow_t to avoid including <new>.
|
|
namespace std {
|
|
struct nothrow_t {};
|
|
} // namespace std
|
|
|
|
|
|
#define OPERATOR_NEW_BODY \
|
|
GET_MALLOC_STACK_TRACE; \
|
|
return MsanReallocate(&stack, 0, size, sizeof(u64), false)
|
|
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void *operator new(size_t size) { OPERATOR_NEW_BODY; }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void *operator new[](size_t size) { OPERATOR_NEW_BODY; }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void *operator new(size_t size, std::nothrow_t const&) { OPERATOR_NEW_BODY; }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void *operator new[](size_t size, std::nothrow_t const&) { OPERATOR_NEW_BODY; }
|
|
|
|
#define OPERATOR_DELETE_BODY \
|
|
GET_MALLOC_STACK_TRACE; \
|
|
if (ptr) MsanDeallocate(&stack, ptr)
|
|
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void operator delete(void *ptr) throw() { OPERATOR_DELETE_BODY; }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void operator delete[](void *ptr) throw() { OPERATOR_DELETE_BODY; }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void operator delete(void *ptr, std::nothrow_t const&) { OPERATOR_DELETE_BODY; }
|
|
INTERCEPTOR_ATTRIBUTE
|
|
void operator delete[](void *ptr, std::nothrow_t const&) {
|
|
OPERATOR_DELETE_BODY;
|
|
}
|
|
|
|
#endif // MSAN_REPLACE_OPERATORS_NEW_AND_DELETE
|