15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011, Google Inc. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// All rights reserved. 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Redistribution and use in source and binary forms, with or without 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// modification, are permitted provided that the following conditions are 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// met: 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions of source code must retain the above copyright 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// notice, this list of conditions and the following disclaimer. 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions in binary form must reproduce the above 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// copyright notice, this list of conditions and the following disclaimer 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// in the documentation and/or other materials provided with the 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// distribution. 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Neither the name of Google Inc. nor the names of its 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// contributors may be used to endorse or promote products derived from 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// this software without specific prior written permission. 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// --- 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Author: Craig Silverstein <opensource@google.com> 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Used on systems that don't have their own definition of 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// malloc/new/etc. (Typically this will be a windows msvcrt.dll that 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// has been edited to remove the definitions.) We can just define our 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// own as normal functions. 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This should also work on systems were all the malloc routines are 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// defined as weak symbols, and there's no support for aliasing. 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_ 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_ 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef HAVE_SYS_CDEFS_H 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/cdefs.h> // for __THROW 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef __THROW // I guess we're not on a glibc-like system 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# define __THROW // __THROW is just an optimization, so ok to make it "" 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void* operator new(size_t size) { return tc_new(size); } 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void operator delete(void* p) __THROW { tc_delete(p); } 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void* operator new[](size_t size) { return tc_newarray(size); } 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void operator delete[](void* p) __THROW { tc_deletearray(p); } 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void* operator new(size_t size, const std::nothrow_t& nt) __THROW { 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return tc_new_nothrow(size, nt); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void* operator new[](size_t size, const std::nothrow_t& nt) __THROW { 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return tc_newarray_nothrow(size, nt); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void operator delete(void* ptr, const std::nothrow_t& nt) __THROW { 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return tc_delete_nothrow(ptr, nt); 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void operator delete[](void* ptr, const std::nothrow_t& nt) __THROW { 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return tc_deletearray_nothrow(ptr, nt); 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern "C" { 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* malloc(size_t s) __THROW { return tc_malloc(s); } 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void free(void* p) __THROW { tc_free(p); } 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* realloc(void* p, size_t s) __THROW { return tc_realloc(p, s); } 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* calloc(size_t n, size_t s) __THROW { return tc_calloc(n, s); } 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void cfree(void* p) __THROW { tc_cfree(p); } 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* memalign(size_t a, size_t s) __THROW { return tc_memalign(a, s); } 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* valloc(size_t s) __THROW { return tc_valloc(s); } 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* pvalloc(size_t s) __THROW { return tc_pvalloc(s); } 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int posix_memalign(void** r, size_t a, size_t s) __THROW { 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return tc_posix_memalign(r, a, s); 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void malloc_stats(void) __THROW { tc_malloc_stats(); } 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int mallopt(int cmd, int v) __THROW { return tc_mallopt(cmd, v); } 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef HAVE_STRUCT_MALLINFO 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct mallinfo mallinfo(void) __THROW { return tc_mallinfo(); } 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t malloc_size(void* p) __THROW { return tc_malloc_size(p); } 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t malloc_usable_size(void* p) __THROW { return tc_malloc_size(p); } 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // extern "C" 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// No need to do anything at tcmalloc-registration time: we do it all 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// via overriding weak symbols (at link time). 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void ReplaceSystemAlloc() { } 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_ 94