/* ---------------------------------------------------------------- Notice that the following BSD-style license applies to this one file (memcheck.h) only. The rest of Valgrind is licensed under the terms of the GNU General Public License, version 2, unless otherwise indicated. See the COPYING file in the source distribution for details. ---------------------------------------------------------------- This file is part of MemCheck, a heavyweight Valgrind tool for detecting memory errors. Copyright (C) 2000-2009 Julian Seward. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 3. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 4. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. ---------------------------------------------------------------- Notice that the above BSD-style license applies to this one file (memcheck.h) only. The entire rest of Valgrind is licensed under the terms of the GNU General Public License, version 2. See the COPYING file in the source distribution for details. ---------------------------------------------------------------- */ #ifndef __MEMCHECK_H #define __MEMCHECK_H /* This file is for inclusion into client (your!) code. You can use these macros to manipulate and query memory permissions inside your own programs. See comment near the top of valgrind.h on how to use them. */ #include "valgrind.h" /* !! ABIWARNING !! ABIWARNING !! ABIWARNING !! ABIWARNING !! This enum comprises an ABI exported by Valgrind to programs which use client requests. DO NOT CHANGE THE ORDER OF THESE ENTRIES, NOR DELETE ANY -- add new ones at the end. */ typedef enum { VG_USERREQ__MAKE_MEM_NOACCESS = VG_USERREQ_TOOL_BASE ('M', 'C'), VG_USERREQ__MAKE_MEM_UNDEFINED, VG_USERREQ__MAKE_MEM_DEFINED, VG_USERREQ__DISCARD, VG_USERREQ__CHECK_MEM_IS_ADDRESSABLE, VG_USERREQ__CHECK_MEM_IS_DEFINED, VG_USERREQ__DO_LEAK_CHECK, VG_USERREQ__COUNT_LEAKS, VG_USERREQ__GET_VBITS, VG_USERREQ__SET_VBITS, VG_USERREQ__CREATE_BLOCK, VG_USERREQ__MAKE_MEM_DEFINED_IF_ADDRESSABLE, /* Not next to VG_USERREQ__COUNT_LEAKS because it was added later. */ VG_USERREQ__COUNT_LEAK_BLOCKS, /* This is just for memcheck's internal use - don't use it */ _VG_USERREQ__MEMCHECK_RECORD_OVERLAP_ERROR = VG_USERREQ_TOOL_BASE ('M', 'C') + 256 } Vg_MemCheckClientRequest; /* Client-code macros to manipulate the state of memory. */ /* Mark memory at _qzz_addr as unaddressable for _qzz_len bytes. */ #define VALGRIND_MAKE_MEM_NOACCESS(_qzz_addr,_qzz_len) \ (__extension__({unsigned long _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0 /* default return */, \ VG_USERREQ__MAKE_MEM_NOACCESS, \ _qzz_addr, _qzz_len, 0, 0, 0); \ _qzz_res; \ })) /* Similarly, mark memory at _qzz_addr as addressable but undefined for _qzz_len bytes. */ #define VALGRIND_MAKE_MEM_UNDEFINED(_qzz_addr,_qzz_len) \ (__extension__({unsigned long _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0 /* default return */, \ VG_USERREQ__MAKE_MEM_UNDEFINED, \ _qzz_addr, _qzz_len, 0, 0, 0); \ _qzz_res; \ })) /* Similarly, mark memory at _qzz_addr as addressable and defined for _qzz_len bytes. */ #define VALGRIND_MAKE_MEM_DEFINED(_qzz_addr,_qzz_len) \ (__extension__({unsigned long _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0 /* default return */, \ VG_USERREQ__MAKE_MEM_DEFINED, \ _qzz_addr, _qzz_len, 0, 0, 0); \ _qzz_res; \ })) /* Similar to VALGRIND_MAKE_MEM_DEFINED except that addressability is not altered: bytes which are addressable are marked as defined, but those which are not addressable are left unchanged. */ #define VALGRIND_MAKE_MEM_DEFINED_IF_ADDRESSABLE(_qzz_addr,_qzz_len) \ (__extension__({unsigned long _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0 /* default return */, \ VG_USERREQ__MAKE_MEM_DEFINED_IF_ADDRESSABLE, \ _qzz_addr, _qzz_len, 0, 0, 0); \ _qzz_res; \ })) /* Create a block-description handle. The description is an ascii string which is included in any messages pertaining to addresses within the specified memory range. Has no other effect on the properties of the memory range. */ #define VALGRIND_CREATE_BLOCK(_qzz_addr,_qzz_len, _qzz_desc) \ (__extension__({unsigned long _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_re