forked from cory/tildefriends
303 lines
14 KiB
C
303 lines
14 KiB
C
|
|
||
|
|
/*
|
||
|
|
----------------------------------------------------------------
|
||
|
|
|
||
|
|
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_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)
|
||
|
|
|
||
|
|
/* 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
|
||
|
|
|