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// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
// Copyright (c) 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---
// Author: Mike Belshe
//
// To link tcmalloc into a EXE or DLL statically without using the patching
// facility, we can take a stock libcmt and remove all the allocator functions.
// When we relink the EXE/DLL with the modified libcmt and tcmalloc, a few
// functions are missing. This file contains the additional overrides which
// are required in the VS2005 libcmt in order to link the modified libcmt.
//
// See also
// http://groups.google.com/group/google-perftools/browse_thread/thread/41cd3710af85e57b
#include <config.h>
#ifndef _WIN32
# error You should only be including this file in a windows environment!
#endif
#ifndef WIN32_OVERRIDE_ALLOCATORS
# error This file is intended for use when overriding allocators
#endif
#include "tcmalloc.cc"
extern "C" void* _recalloc(void* p, size_t n, size_t size) {
void* result = realloc(p, n * size);
memset(result, 0, n * size);
return result;
}
extern "C" void* _calloc_impl(size_t n, size_t size) {
return calloc(n, size);
}
extern "C" size_t _msize(void* p) {
return MallocExtension::instance()->GetAllocatedSize(p);
}
extern "C" intptr_t _get_heap_handle() {
return 0;
}
// The CRT heap initialization stub.
extern "C" int _heap_init() {
// We intentionally leak this object. It lasts for the process
// lifetime. Trying to teardown at _heap_term() is so late that
// you can't do anything useful anyway.
new TCMallocGuard();
return 1;
}
// The CRT heap cleanup stub.
extern "C" void _heap_term() {
}
extern "C" int _set_new_mode(int flag) {
return tc_set_new_mode(flag);
}
#ifndef NDEBUG
#undef malloc
#undef free
#undef calloc
int _CrtDbgReport(int, const char*, int, const char*, const char*, ...) {
return 0;
}
int _CrtDbgReportW(int, const wchar_t*, int, const wchar_t*, const wchar_t*, ...) {
return 0;
}
int _CrtSetReportMode(int, int) {
return 0;
}
extern "C" void* _malloc_dbg(size_t size, int , const char*, int) {
return malloc(size);
}
extern "C" void _free_dbg(void* ptr, int) {
free(ptr);
}
extern "C" void* _calloc_dbg(size_t n, size_t size, int, const char*, int) {
return calloc(n, size);
}
#endif // NDEBUG
// We set this to 1 because part of the CRT uses a check of _crtheap != 0
// to test whether the CRT has been initialized. Once we've ripped out
// the allocators from libcmt, we need to provide this definition so that
// the rest of the CRT is still usable.
extern "C" void* _crtheap = reinterpret_cast<void*>(1);
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