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cachegrind.h
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callgrind.h
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dhat.h
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helgrind.h
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memcheck.h
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valgrind.h
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Editing: memcheck.h
/* ---------------------------------------------------------------- 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) 2000-2017 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, VG_USERREQ__ENABLE_ADDR_ERROR_REPORTING_IN_RANGE, VG_USERREQ__DISABLE_ADDR_ERROR_REPORTING_IN_RANGE, /* 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_USERREQ__MEMCHECK_VERIFY_ALIGNMENT } 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) \ VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \ VG_USERREQ__MAKE_MEM_NOACCESS, \ (_qzz_addr), (_qzz_len), 0, 0, 0) /* Similarly, mark memory at _qzz_addr as addressable but undefined for _qzz_len bytes. */ #define VALGRIND_MAKE_MEM_UNDEFINED(_qzz_addr,_qzz_len) \ VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \ VG_USERREQ__MAKE_MEM_UNDEFINED, \ (_qzz_addr), (_qzz_len), 0, 0, 0) /* Similarly, mark memory at _qzz_addr as addressable and defined for _qzz_len bytes. */ #define VALGRIND_MAKE_MEM_DEFINED(_qzz_addr,_qzz_len) \ VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \ VG_USERREQ__MAKE_MEM_DEFINED, \ (_qzz_addr), (_qzz_len), 0, 0, 0) /* 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) \ VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \ VG_USERREQ__MAKE_MEM_DEFINED_IF_ADDRESSABLE, \ (_qzz_addr), (_qzz_len), 0, 0, 0) /* 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) \ VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \ VG_USERREQ__CREATE_BLOCK, \ (_qzz_addr), (_qzz_len), (_qzz_desc), \ 0, 0) /* Discard a block-description-handle. Returns 1 for an invalid handle, 0 for a valid handle. */ #define VALGRIND_DISCARD(_qzz_blkindex) \ VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \ VG_USERREQ__DISCARD, \ 0, (_qzz_blkindex), 0, 0, 0) /* Client-code macros to check the state of memory. */ /* Check that memory at _qzz_addr is addressable for _qzz_len bytes. If suitable addressibility is not established, Valgrind prints an error message and returns the address of the first offending byte. Otherwise it returns zero. */ #define VALGRIND_CHECK_MEM_IS_ADDRESSABLE(_qzz_addr,_qzz_len) \ VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \ VG_USERREQ__CHECK_MEM_IS_ADDRESSABLE, \ (_qzz_addr), (_qzz_len), 0, 0, 0) /* Check that memory at _qzz_addr is addressable and defined for _qzz_len bytes. If suitable addressibility and definedness are not established, Valgrind prints an error message and returns the address of the first offending byte. Otherwise it returns zero. */ #define VALGRIND_CHECK_MEM_IS_DEFINED(_qzz_addr,_qzz_len) \ VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \ VG_USERREQ__CHECK_MEM_IS_DEFINED, \ (_qzz_addr), (_qzz_len), 0, 0, 0) /* Use this macro to force the definedness and addressibility of an lvalue to be checked. If suitable addressibility and definedness are not established, Valgrind prints an error message and returns the address of the first offending byte. Otherwise it returns zero. */ #define VALGRIND_CHECK_VALUE_IS_DEFINED(__lvalue) \ VALGRIND_CHECK_MEM_IS_DEFINED( \ (volatile unsigned char *)&(__lvalue), \ (unsigned long)(sizeof (__lvalue))) /* Do a full memory leak check (like --leak-check=full) mid-execution. */ #define VALGRIND_DO_LEAK_CHECK \ VALGRIND_DO_CLIENT_REQUEST_STMT(VG_USERREQ__DO_LEAK_CHECK, \ 0, 0, 0, 0, 0) /* Same as VALGRIND_DO_LEAK_CHECK but only showing the entries for which there was an increase in leaked bytes or leaked nr of blocks since the previous leak search. */ #define VALGRIND_DO_ADDED_LEAK_CHECK \ VALGRIND_DO_CLIENT_REQUEST_STMT(VG_USERREQ__DO_LEAK_CHECK, \ 0, 1, 0, 0, 0) /* Same as VALGRIND_DO_ADDED_LEAK_CHECK but showing entries with increased or decreased leaked bytes/blocks since previous leak search. */ #define VALGRIND_DO_CHANGED_LEAK_CHECK \ VALGRIND_DO_CLIENT_REQUEST_STMT(VG_USERREQ__DO_LEAK_CHECK, \ 0, 2, 0, 0, 0) /* Same as VALGRIND_DO_LEAK_CHECK but only showing new entries i.e. loss records that were not there in the previous leak search. */ #define VALGRIND_DO_NEW_LEAK_CHECK \ VALGRIND_DO_CLIENT_REQUEST_STMT(VG_USERREQ__DO_LEAK_CHECK, \ 0, 3, 0, 0, 0) /* Do a summary memory leak check (like --leak-check=summary) mid-execution. */ #define VALGRIND_DO_QUICK_LEAK_CHECK \ VALGRIND_DO_CLIENT_REQUEST_STMT(VG_USERREQ__DO_LEAK_CHECK, \ 1, 0, 0, 0, 0) /* Return number of leaked, dubious, reachable and suppressed bytes found by all previous leak checks. They must be lvalues. */ #define VALGRIND_COUNT_LEAKS(leaked, dubious, reachable, suppressed) \ /* For safety on 64-bit platforms we assign the results to private unsigned long variables, then assign these to the lvalues the user specified, which works no matter what type 'leaked', 'dubious', etc are. We also initialise '_qzz_leaked', etc because VG_USERREQ__COUNT_LEAKS doesn't mark the values returned as defined. */ \ { \ unsigned long _qzz_leaked = 0, _qzz_dubious = 0; \ unsigned long _qzz_reachable = 0, _qzz_suppressed = 0; \ VALGRIND_DO_CLIENT_REQUEST_STMT( \ VG_USERREQ__COUNT_LEAKS, \ &_qzz_leaked, &_qzz_dubious, \ &_qzz_reachable, &_qzz_suppressed, 0); \ leaked = _qzz_leaked; \ dubious = _qzz_dubious; \ reachable = _qzz_reachable; \ suppressed = _qzz_suppressed; \ } /* Return number of leaked, dubious, reachable and suppressed bytes found by all previous leak checks. They must be lvalues. */ #define VALGRIND_COUNT_LEAK_BLOCKS(leaked, dubious, reachable, suppressed) \ /* For safety on 64-bit platforms we assign the results to private unsigned long variables, then assign these to the lvalues the user specified, which works no matter what type 'leaked', 'dubious', etc are. We also initialise '_qzz_leaked', etc because VG_USERREQ__COUNT_LEAKS doesn't mark the values returned as defined. */ \ { \ unsigned long _qzz_leaked = 0, _qzz_dubious = 0; \ unsigned long _qzz_reachable = 0, _qzz_suppressed = 0; \ VALGRIND_DO_CLIENT_REQUEST_STMT( \ VG_USERREQ__COUNT_LEAK_BLOCKS, \ &_qzz_leaked, &_qzz_dubious, \ &_qzz_reachable, &_qzz_suppressed, 0); \ leaked = _qzz_leaked; \ dubious = _qzz_dubious; \ reachable = _qzz_reachable; \ suppressed = _qzz_suppressed; \ } /* Get the validity data for addresses [zza..zza+zznbytes-1] and copy it into the provided zzvbits array. Return values: 0 if not running on valgrind 1 success 2 [previously indicated unaligned arrays; these are now allowed] 3 if any parts of zzsrc/zzvbits are not addressable. The metadata is not copied in cases 0, 2 or 3 so it should be impossible to segfault your system by using this call. */ #define VALGRIND_GET_VBITS(zza,zzvbits,zznbytes) \ (unsigned)VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \ VG_USERREQ__GET_VBITS, \ (const char*)(zza), \ (char*)(zzvbits), \ (zznbytes), 0, 0) /* Set the validity data for addresses [zza..zza+zznbytes-1], copying it from the provided zzvbits array. Return values: 0 if not running on valgrind 1 success 2 [previously indicated unaligned arrays; these are now allowed] 3 if any parts of zza/zzvbits are not addressable. The metadata is not copied in cases 0, 2 or 3 so it should be impossible to segfault your system by using this call. */ #define VALGRIND_SET_VBITS(zza,zzvbits,zznbytes) \ (unsigned)VALGRIND_DO_CLIENT_REQUEST_EXPR(0, \ VG_USERREQ__SET_VBITS, \ (const char*)(zza), \ (const char*)(zzvbits), \ (zznbytes), 0, 0 ) /* Disable and re-enable reporting of addressing errors in the specified address range. */ #define VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE(_qzz_addr,_qzz_len) \ VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \ VG_USERREQ__DISABLE_ADDR_ERROR_REPORTING_IN_RANGE, \ (_qzz_addr), (_qzz_len), 0, 0, 0) #define VALGRIND_ENABLE_ADDR_ERROR_REPORTING_IN_RANGE(_qzz_addr,_qzz_len) \ VALGRIND_DO_CLIENT_REQUEST_EXPR(0 /* default return */, \ VG_USERREQ__ENABLE_ADDR_ERROR_REPORTING_IN_RANGE, \ (_qzz_addr), (_qzz_len), 0, 0, 0) #endif
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