1/* -*- mode: C; c-basic-offset: 3; indent-tabs-mode: nil; -*- */
2/*
3  This file is part of drd, a thread error detector.
4
5  Copyright (C) 2006-2011 Bart Van Assche <bvanassche@acm.org>.
6
7  This program is free software; you can redistribute it and/or
8  modify it under the terms of the GNU General Public License as
9  published by the Free Software Foundation; either version 2 of the
10  License, or (at your option) any later version.
11
12  This program is distributed in the hope that it will be useful, but
13  WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  General Public License for more details.
16
17  You should have received a copy of the GNU General Public License
18  along with this program; if not, write to the Free Software
19  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20  02111-1307, USA.
21
22  The GNU General Public License is contained in the file COPYING.
23*/
24
25#include <stdint.h>
26#include <stdio.h>
27#include "valgrind.h"
28#include "drd.h"
29#include "pub_tool_redir.h"
30
31/*
32 * On Mac OS X shared library functions are lazily bound. The binding mechanism
33 * uses self-modifying code. Intercept fastBindLazySymbol() in order to suppress
34 * the data accesses involved in this mechanism.
35 *
36 * 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).
37 * See also the dyld_stub_binder() source code (http://www.opensource.apple.com/source/dyld/dyld-132.13/src/dyld_stub_binder.s).
38 * See also the dyld::fastBindLazySymbol() source code (http://opensource.apple.com/source/dyld/dyld-132.13/src/dyld.cpp).
39 */
40void* VG_WRAP_FUNCTION_ZZ(dyld, ZuZZN4dyld18fastBindLazySymbolEPP11ImageLoaderm)
41     (void** imageLoaderCache, uintptr_t lazyBindingInfoOffset);
42void* VG_WRAP_FUNCTION_ZZ(dyld, ZuZZN4dyld18fastBindLazySymbolEPP11ImageLoaderm)
43     (void** imageLoaderCache, uintptr_t lazyBindingInfoOffset)
44{
45   void* res;
46   OrigFn fn;
47
48   VALGRIND_GET_ORIG_FN(fn);
49
50   ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN();
51   CALL_FN_W_WW(res, fn, imageLoaderCache, lazyBindingInfoOffset);
52   ANNOTATE_IGNORE_READS_AND_WRITES_END();
53
54   return res;
55}
56