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//===-- tsan_new_delete.cpp ---------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of ThreadSanitizer (TSan), a race detector.
//
// Interceptors for operators new and delete.
//===----------------------------------------------------------------------===//
#include "interception/interception.h"
#include "sanitizer_common/sanitizer_allocator.h"
#include "sanitizer_common/sanitizer_allocator_report.h"
#include "sanitizer_common/sanitizer_internal_defs.h"
#include "tsan_interceptors.h"
#include "tsan_rtl.h"
using namespace __tsan;
namespace std {
struct nothrow_t {};
enum class align_val_t: __sanitizer::uptr {};
} // namespace std
DECLARE_REAL(void *, malloc, uptr size)
DECLARE_REAL(void, free, void *ptr)
// TODO(alekseys): throw std::bad_alloc instead of dying on OOM.
#define OPERATOR_NEW_BODY(mangled_name, nothrow) \
if (in_symbolizer()) \
return InternalAlloc(size); \
void *p = 0; \
{ \
SCOPED_INTERCEPTOR_RAW(mangled_name, size); \
p = user_alloc(thr, pc, size); \
if (!nothrow && UNLIKELY(!p)) { \
GET_STACK_TRACE_FATAL(thr, pc); \
ReportOutOfMemory(size, &stack); \
} \
} \
invoke_malloc_hook(p, size); \
return p;
#define OPERATOR_NEW_BODY_ALIGN(mangled_name, nothrow) \
if (in_symbolizer()) \
return InternalAlloc(size, nullptr, (uptr)align); \
void *p = 0; \
{ \
SCOPED_INTERCEPTOR_RAW(mangled_name, size); \
p = user_memalign(thr, pc, (uptr)align, size); \
if (!nothrow && UNLIKELY(!p)) { \
GET_STACK_TRACE_FATAL(thr, pc); \
ReportOutOfMemory(size, &stack); \
} \
} \
invoke_malloc_hook(p, size); \
return p;
SANITIZER_INTERFACE_ATTRIBUTE
void *operator new(__sanitizer::uptr size);
void *operator new(__sanitizer::uptr size) {
OPERATOR_NEW_BODY(_Znwm, false /*nothrow*/);
}
SANITIZER_INTERFACE_ATTRIBUTE
void *operator new[](__sanitizer::uptr size);
void *operator new[](__sanitizer::uptr size) {
OPERATOR_NEW_BODY(_Znam, false /*nothrow*/);
}
SANITIZER_INTERFACE_ATTRIBUTE
void *operator new(__sanitizer::uptr size, std::nothrow_t const&);
void *operator new(__sanitizer::uptr size, std::nothrow_t const&) {
OPERATOR_NEW_BODY(_ZnwmRKSt9nothrow_t, true /*nothrow*/);
}
SANITIZER_INTERFACE_ATTRIBUTE
void *operator new[](__sanitizer::uptr size, std::nothrow_t const&);
void *operator new[](__sanitizer::uptr size, std::nothrow_t const&) {
OPERATOR_NEW_BODY(_ZnamRKSt9nothrow_t, true /*nothrow*/);
}
SANITIZER_INTERFACE_ATTRIBUTE
void *operator new(__sanitizer::uptr size, std::align_val_t align);
void *operator new(__sanitizer::uptr size, std::align_val_t align) {
OPERATOR_NEW_BODY_ALIGN(_ZnwmSt11align_val_t, false /*nothrow*/);
}
SANITIZER_INTERFACE_ATTRIBUTE
void *operator new[](__sanitizer::uptr size, std::align_val_t align);
void *operator new[](__sanitizer::uptr size, std::align_val_t align) {
OPERATOR_NEW_BODY_ALIGN(_ZnamSt11align_val_t, false /*nothrow*/);
}
SANITIZER_INTERFACE_ATTRIBUTE
void *operator new(__sanitizer::uptr size, std::align_val_t align,
std::nothrow_t const&);
void *operator new(__sanitizer::uptr size, std::align_val_t align,
std::nothrow_t const&) {
OPERATOR_NEW_BODY_ALIGN(_ZnwmSt11align_val_tRKSt9nothrow_t,
true /*nothrow*/);
}
SANITIZER_INTERFACE_ATTRIBUTE
void *operator new[](__sanitizer::uptr size, std::align_val_t align,
std::nothrow_t const&);
void *operator new[](__sanitizer::uptr size, std::align_val_t align,
std::nothrow_t const&) {
OPERATOR_NEW_BODY_ALIGN(_ZnamSt11align_val_tRKSt9nothrow_t,
true /*nothrow*/);
}
#define OPERATOR_DELETE_BODY(mangled_name) \
if (ptr == 0) return; \
if (in_symbolizer()) \
return InternalFree(ptr); \
invoke_free_hook(ptr); \
SCOPED_INTERCEPTOR_RAW(mangled_name, ptr); \
user_free(thr, pc, ptr);
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete(void *ptr) NOEXCEPT;
void operator delete(void *ptr) NOEXCEPT {
OPERATOR_DELETE_BODY(_ZdlPv);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete[](void *ptr) NOEXCEPT;
void operator delete[](void *ptr) NOEXCEPT {
OPERATOR_DELETE_BODY(_ZdaPv);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete(void *ptr, std::nothrow_t const&);
void operator delete(void *ptr, std::nothrow_t const&) {
OPERATOR_DELETE_BODY(_ZdlPvRKSt9nothrow_t);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete[](void *ptr, std::nothrow_t const&);
void operator delete[](void *ptr, std::nothrow_t const&) {
OPERATOR_DELETE_BODY(_ZdaPvRKSt9nothrow_t);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete(void *ptr, __sanitizer::uptr size) NOEXCEPT;
void operator delete(void *ptr, __sanitizer::uptr size) NOEXCEPT {
OPERATOR_DELETE_BODY(_ZdlPvm);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete[](void *ptr, __sanitizer::uptr size) NOEXCEPT;
void operator delete[](void *ptr, __sanitizer::uptr size) NOEXCEPT {
OPERATOR_DELETE_BODY(_ZdaPvm);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete(void *ptr, std::align_val_t align) NOEXCEPT;
void operator delete(void *ptr, std::align_val_t align) NOEXCEPT {
OPERATOR_DELETE_BODY(_ZdlPvSt11align_val_t);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete[](void *ptr, std::align_val_t align) NOEXCEPT;
void operator delete[](void *ptr, std::align_val_t align) NOEXCEPT {
OPERATOR_DELETE_BODY(_ZdaPvSt11align_val_t);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete(void *ptr, std::align_val_t align, std::nothrow_t const&);
void operator delete(void *ptr, std::align_val_t align, std::nothrow_t const&) {
OPERATOR_DELETE_BODY(_ZdlPvSt11align_val_tRKSt9nothrow_t);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete[](void *ptr, std::align_val_t align,
std::nothrow_t const&);
void operator delete[](void *ptr, std::align_val_t align,
std::nothrow_t const&) {
OPERATOR_DELETE_BODY(_ZdaPvSt11align_val_tRKSt9nothrow_t);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete(void *ptr, __sanitizer::uptr size,
std::align_val_t align) NOEXCEPT;
void operator delete(void *ptr, __sanitizer::uptr size,
std::align_val_t align) NOEXCEPT {
OPERATOR_DELETE_BODY(_ZdlPvmSt11align_val_t);
}
SANITIZER_INTERFACE_ATTRIBUTE
void operator delete[](void *ptr, __sanitizer::uptr size,
std::align_val_t align) NOEXCEPT;
void operator delete[](void *ptr, __sanitizer::uptr size,
std::align_val_t align) NOEXCEPT {
OPERATOR_DELETE_BODY(_ZdaPvmSt11align_val_t);
}
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