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//===-- tsan_new_delete.cc ----------------------------------------------===//
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// 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_internal_defs.h"
#include "tsan_interceptors.h"
using namespace __tsan; // NOLINT
namespace std {
struct nothrow_t {};
} // namespace std
DECLARE_REAL(void *, malloc, uptr size)
DECLARE_REAL(void, free, void *ptr)
#if SANITIZER_MAC
#define __libc_malloc REAL(malloc)
#define __libc_free REAL(free)
#endif
#define OPERATOR_NEW_BODY(mangled_name) \
if (cur_thread()->in_symbolizer) \
return __libc_malloc(size); \
void *p = 0; \
{ \
SCOPED_INTERCEPTOR_RAW(mangled_name, size); \
p = user_alloc(thr, pc, size); \
} \
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);
}
SANITIZER_INTERFACE_ATTRIBUTE
void *operator new[](__sanitizer::uptr size);
void *operator new[](__sanitizer::uptr size) {
OPERATOR_NEW_BODY(_Znam);
}
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);
}
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);
}
#define OPERATOR_DELETE_BODY(mangled_name) \
if (ptr == 0) return; \
if (cur_thread()->in_symbolizer) \
return __libc_free(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);
}
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