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/libc_override_gcc_and_weak.h b/src/libc_override_gcc_and_weak.h
new file mode 100644
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+++ b/src/libc_override_gcc_and_weak.h
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+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, 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: Craig Silverstein <opensource@google.com>
+//
+// Used to override malloc routines on systems that define the
+// memory allocation routines to be weak symbols in their libc
+// (almost all unix-based systems are like this), on gcc, which
+// suppports the 'alias' attribute.
+
+#ifndef TCMALLOC_LIBC_OVERRIDE_GCC_AND_WEAK_INL_H_
+#define TCMALLOC_LIBC_OVERRIDE_GCC_AND_WEAK_INL_H_
+
+#ifdef HAVE_SYS_CDEFS_H
+#include <sys/cdefs.h> // for __THROW
+#endif
+#include <gperftools/tcmalloc.h>
+
+#ifndef __THROW // I guess we're not on a glibc-like system
+# define __THROW // __THROW is just an optimization, so ok to make it ""
+#endif
+
+#ifndef __GNUC__
+# error libc_override_gcc_and_weak.h is for gcc distributions only.
+#endif
+
+#define ALIAS(tc_fn) __attribute__ ((alias (#tc_fn)))
+
+void* operator new(size_t size) throw (std::bad_alloc)
+ ALIAS(tc_new);
+void operator delete(void* p) __THROW
+ ALIAS(tc_delete);
+void* operator new[](size_t size) throw (std::bad_alloc)
+ ALIAS(tc_newarray);
+void operator delete[](void* p) __THROW
+ ALIAS(tc_deletearray);
+void* operator new(size_t size, const std::nothrow_t& nt) __THROW
+ ALIAS(tc_new_nothrow);
+void* operator new[](size_t size, const std::nothrow_t& nt) __THROW
+ ALIAS(tc_newarray_nothrow);
+void operator delete(void* p, const std::nothrow_t& nt) __THROW
+ ALIAS(tc_delete_nothrow);
+void operator delete[](void* p, const std::nothrow_t& nt) __THROW
+ ALIAS(tc_deletearray_nothrow);
+
+extern "C" {
+ void* malloc(size_t size) __THROW ALIAS(tc_malloc);
+ void free(void* ptr) __THROW ALIAS(tc_free);
+ void* realloc(void* ptr, size_t size) __THROW ALIAS(tc_realloc);
+ void* calloc(size_t n, size_t size) __THROW ALIAS(tc_calloc);
+ void cfree(void* ptr) __THROW ALIAS(tc_cfree);
+ void* memalign(size_t align, size_t s) __THROW ALIAS(tc_memalign);
+ void* valloc(size_t size) __THROW ALIAS(tc_valloc);
+ void* pvalloc(size_t size) __THROW ALIAS(tc_pvalloc);
+ int posix_memalign(void** r, size_t a, size_t s) __THROW
+ ALIAS(tc_posix_memalign);
+#ifndef __UCLIBC__
+ void malloc_stats(void) __THROW ALIAS(tc_malloc_stats);
+#endif
+ int mallopt(int cmd, int value) __THROW ALIAS(tc_mallopt);
+#ifdef HAVE_STRUCT_MALLINFO
+ struct mallinfo mallinfo(void) __THROW ALIAS(tc_mallinfo);
+#endif
+ size_t malloc_size(void* p) __THROW ALIAS(tc_malloc_size);
+#if defined(__ANDROID__)
+ size_t malloc_usable_size(const void* p) __THROW
+ ALIAS(tc_malloc_size);
+#else
+ size_t malloc_usable_size(void* p) __THROW ALIAS(tc_malloc_size);
+#endif
+} // extern "C"
+
+#undef ALIAS
+
+// No need to do anything at tcmalloc-registration time: we do it all
+// via overriding weak symbols (at link time).
+static void ReplaceSystemAlloc() { }
+
+#endif // TCMALLOC_LIBC_OVERRIDE_GCC_AND_WEAK_INL_H_