Squashed 'third_party/gperftools/' content from commit 54505f1
Change-Id: Id02e833828732b0efe7dac722b8485279e67c5fa
git-subtree-dir: third_party/gperftools
git-subtree-split: 54505f1d50c2d1f4676f5e87090b64a117fd980e
diff --git a/src/windows/override_functions.cc b/src/windows/override_functions.cc
new file mode 100644
index 0000000..e7917d3
--- /dev/null
+++ b/src/windows/override_functions.cc
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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);