| // 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); |
| void malloc_stats(void) __THROW ALIAS(tc_malloc_stats); |
| 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); |
| size_t malloc_usable_size(void* p) __THROW ALIAS(tc_malloc_size); |
| } // 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_ |