1 /* 2 This file is part of drd, a thread error detector. 3 4 Copyright (C) 2006-2017 Bart Van Assche <bvanassche@acm.org>. 5 6 This program is free software; you can redistribute it and/or 7 modify it under the terms of the GNU General Public License as 8 published by the Free Software Foundation; either version 2 of the 9 License, or (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 19 02111-1307, USA. 20 21 The GNU General Public License is contained in the file COPYING. 22 */ 23 24 #include <stdint.h> 25 #include <stdio.h> 26 #include "pub_tool_clreq.h" 27 #include "drd.h" 28 #include "pub_tool_redir.h" 29 30 /* 31 * On Mac OS X shared library functions are lazily bound. The binding mechanism 32 * uses self-modifying code. Intercept fastBindLazySymbol() in order to suppress 33 * the data accesses involved in this mechanism. 34 * 35 * See also the Mac OS X ABI Dynamic Loader Reference (http://developer.apple.com/library/mac/#documentation/DeveloperTools/Reference/MachOReference/Reference/reference.html#//apple_ref/c/func/dyld_stub_binding_helper). 36 * See also the dyld_stub_binder() source code (http://www.opensource.apple.com/source/dyld/dyld-132.13/src/dyld_stub_binder.s). 37 * See also the dyld::fastBindLazySymbol() source code (http://opensource.apple.com/source/dyld/dyld-132.13/src/dyld.cpp). 38 */ 39 void* VG_WRAP_FUNCTION_ZZ(dyld, ZuZZN4dyld18fastBindLazySymbolEPP11ImageLoaderm) 40 (void** imageLoaderCache, uintptr_t lazyBindingInfoOffset); 41 void* VG_WRAP_FUNCTION_ZZ(dyld, ZuZZN4dyld18fastBindLazySymbolEPP11ImageLoaderm) 42 (void** imageLoaderCache, uintptr_t lazyBindingInfoOffset) 43 { 44 void* res; 45 OrigFn fn; 46 47 VALGRIND_GET_ORIG_FN(fn); 48 49 ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN(); 50 CALL_FN_W_WW(res, fn, imageLoaderCache, lazyBindingInfoOffset); 51 ANNOTATE_IGNORE_READS_AND_WRITES_END(); 52 53 return res; 54 } 55