njn | c953984 | 2002-10-02 13:26:35 +0000 | [diff] [blame] | 1 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 2 | /*--------------------------------------------------------------------*/ |
nethercote | 137bc55 | 2003-11-14 17:47:54 +0000 | [diff] [blame] | 3 | /*--- A header file for all parts of the MemCheck tool. ---*/ |
njn25 | cac76cb | 2002-09-23 11:21:57 +0000 | [diff] [blame] | 4 | /*--- mc_include.h ---*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 5 | /*--------------------------------------------------------------------*/ |
| 6 | |
| 7 | /* |
nethercote | 137bc55 | 2003-11-14 17:47:54 +0000 | [diff] [blame] | 8 | This file is part of MemCheck, a heavyweight Valgrind tool for |
njn | c953984 | 2002-10-02 13:26:35 +0000 | [diff] [blame] | 9 | detecting memory errors. |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 10 | |
sewardj | 03f8d3f | 2012-08-05 15:46:46 +0000 | [diff] [blame] | 11 | Copyright (C) 2000-2012 Julian Seward |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 12 | jseward@acm.org |
| 13 | |
| 14 | This program is free software; you can redistribute it and/or |
| 15 | modify it under the terms of the GNU General Public License as |
| 16 | published by the Free Software Foundation; either version 2 of the |
| 17 | License, or (at your option) any later version. |
| 18 | |
| 19 | This program is distributed in the hope that it will be useful, but |
| 20 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 22 | General Public License for more details. |
| 23 | |
| 24 | You should have received a copy of the GNU General Public License |
| 25 | along with this program; if not, write to the Free Software |
| 26 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 27 | 02111-1307, USA. |
| 28 | |
| 29 | The GNU General Public License is contained in the file COPYING. |
| 30 | */ |
| 31 | |
njn25 | cac76cb | 2002-09-23 11:21:57 +0000 | [diff] [blame] | 32 | #ifndef __MC_INCLUDE_H |
| 33 | #define __MC_INCLUDE_H |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 34 | |
njn | 44acd3e | 2005-05-13 21:39:45 +0000 | [diff] [blame] | 35 | #define MC_(str) VGAPPEND(vgMemCheck_,str) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 36 | |
sewardj | 7ce7166 | 2008-05-02 10:33:15 +0000 | [diff] [blame] | 37 | |
| 38 | /* This is a private header file for use only within the |
| 39 | memcheck/ directory. */ |
| 40 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 41 | /*------------------------------------------------------------*/ |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 42 | /*--- Tracking the heap ---*/ |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 43 | /*------------------------------------------------------------*/ |
| 44 | |
philippe | d99c26a | 2012-07-31 22:17:28 +0000 | [diff] [blame] | 45 | /* By default, we want at least a 16B redzone on client heap blocks |
| 46 | for Memcheck. |
| 47 | The default can be modified by --redzone-size. */ |
| 48 | #define MC_MALLOC_DEFAULT_REDZONE_SZB 16 |
| 49 | // effective redzone, as (possibly) modified by --redzone-size: |
| 50 | extern SizeT MC_(Malloc_Redzone_SzB); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 51 | |
| 52 | /* For malloc()/new/new[] vs. free()/delete/delete[] mismatch checking. */ |
| 53 | typedef |
| 54 | enum { |
| 55 | MC_AllocMalloc = 0, |
| 56 | MC_AllocNew = 1, |
| 57 | MC_AllocNewVec = 2, |
| 58 | MC_AllocCustom = 3 |
| 59 | } |
| 60 | MC_AllocKind; |
| 61 | |
njn | 8225cc0 | 2009-03-09 22:52:24 +0000 | [diff] [blame] | 62 | /* This describes a heap block. Nb: first two fields must match core's |
| 63 | * VgHashNode. */ |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 64 | typedef |
| 65 | struct _MC_Chunk { |
| 66 | struct _MC_Chunk* next; |
njn | 8225cc0 | 2009-03-09 22:52:24 +0000 | [diff] [blame] | 67 | Addr data; // Address of the actual block. |
| 68 | SizeT szB : (sizeof(SizeT)*8)-2; // Size requested; 30 or 62 bits. |
| 69 | MC_AllocKind allockind : 2; // Which operation did the allocation. |
| 70 | ExeContext* where; // Where it was allocated. |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 71 | } |
| 72 | MC_Chunk; |
| 73 | |
| 74 | /* Memory pool. Nb: first two fields must match core's VgHashNode. */ |
| 75 | typedef |
| 76 | struct _MC_Mempool { |
| 77 | struct _MC_Mempool* next; |
| 78 | Addr pool; // pool identifier |
| 79 | SizeT rzB; // pool red-zone size |
| 80 | Bool is_zeroed; // allocations from this pool are zeroed |
| 81 | VgHashTable chunks; // chunks associated with this pool |
| 82 | } |
| 83 | MC_Mempool; |
| 84 | |
| 85 | |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 86 | void* MC_(new_block) ( ThreadId tid, |
njn | 1dcee09 | 2009-02-24 03:07:37 +0000 | [diff] [blame] | 87 | Addr p, SizeT size, SizeT align, |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 88 | Bool is_zeroed, MC_AllocKind kind, |
| 89 | VgHashTable table); |
| 90 | void MC_(handle_free) ( ThreadId tid, |
| 91 | Addr p, UInt rzB, MC_AllocKind kind ); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 92 | |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 93 | void MC_(create_mempool) ( Addr pool, UInt rzB, Bool is_zeroed ); |
| 94 | void MC_(destroy_mempool) ( Addr pool ); |
| 95 | void MC_(mempool_alloc) ( ThreadId tid, Addr pool, |
| 96 | Addr addr, SizeT size ); |
| 97 | void MC_(mempool_free) ( Addr pool, Addr addr ); |
| 98 | void MC_(mempool_trim) ( Addr pool, Addr addr, SizeT size ); |
| 99 | void MC_(move_mempool) ( Addr poolA, Addr poolB ); |
| 100 | void MC_(mempool_change) ( Addr pool, Addr addrA, Addr addrB, SizeT size ); |
| 101 | Bool MC_(mempool_exists) ( Addr pool ); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 102 | |
sewardj | 403d8aa | 2011-10-22 19:48:57 +0000 | [diff] [blame] | 103 | /* Searches for a recently freed block which might bracket Addr a. |
| 104 | Return the MC_Chunk* for this block or NULL if no bracketting block |
| 105 | is found. */ |
| 106 | MC_Chunk* MC_(get_freed_block_bracketting)( Addr a ); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 107 | |
philippe | 6643e96 | 2012-01-17 21:16:30 +0000 | [diff] [blame] | 108 | /* For efficient pooled alloc/free of the MC_Chunk. */ |
| 109 | extern PoolAlloc* MC_(chunk_poolalloc); |
| 110 | |
njn | b965efb | 2009-08-10 07:36:54 +0000 | [diff] [blame] | 111 | /* For tracking malloc'd blocks. Nb: it's quite important that it's a |
| 112 | VgHashTable, because VgHashTable allows duplicate keys without complaint. |
| 113 | This can occur if a user marks a malloc() block as also a custom block with |
| 114 | MALLOCLIKE_BLOCK. */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 115 | extern VgHashTable MC_(malloc_list); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 116 | |
| 117 | /* For tracking memory pools. */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 118 | extern VgHashTable MC_(mempool_list); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 119 | |
| 120 | /* Shadow memory functions */ |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 121 | Bool MC_(check_mem_is_noaccess)( Addr a, SizeT len, Addr* bad_addr ); |
| 122 | void MC_(make_mem_noaccess) ( Addr a, SizeT len ); |
| 123 | void MC_(make_mem_undefined_w_otag)( Addr a, SizeT len, UInt otag ); |
| 124 | void MC_(make_mem_defined) ( Addr a, SizeT len ); |
| 125 | void MC_(copy_address_range_state) ( Addr src, Addr dst, SizeT len ); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 126 | |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 127 | void MC_(print_malloc_stats) ( void ); |
philippe | a22f59d | 2012-01-26 23:13:52 +0000 | [diff] [blame] | 128 | /* nr of free operations done */ |
| 129 | SizeT MC_(get_cmalloc_n_frees) ( void ); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 130 | |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 131 | void* MC_(malloc) ( ThreadId tid, SizeT n ); |
| 132 | void* MC_(__builtin_new) ( ThreadId tid, SizeT n ); |
| 133 | void* MC_(__builtin_vec_new) ( ThreadId tid, SizeT n ); |
| 134 | void* MC_(memalign) ( ThreadId tid, SizeT align, SizeT n ); |
| 135 | void* MC_(calloc) ( ThreadId tid, SizeT nmemb, SizeT size1 ); |
| 136 | void MC_(free) ( ThreadId tid, void* p ); |
| 137 | void MC_(__builtin_delete) ( ThreadId tid, void* p ); |
| 138 | void MC_(__builtin_vec_delete) ( ThreadId tid, void* p ); |
| 139 | void* MC_(realloc) ( ThreadId tid, void* p, SizeT new_size ); |
njn | 8b140de | 2009-02-17 04:31:18 +0000 | [diff] [blame] | 140 | SizeT MC_(malloc_usable_size) ( ThreadId tid, void* p ); |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 141 | |
bart | 9134738 | 2011-03-25 20:07:25 +0000 | [diff] [blame] | 142 | void MC_(handle_resizeInPlace)(ThreadId tid, Addr p, |
| 143 | SizeT oldSizeB, SizeT newSizeB, SizeT rzB); |
| 144 | |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 145 | |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 146 | /*------------------------------------------------------------*/ |
| 147 | /*--- Origin tracking translate-time support ---*/ |
| 148 | /*------------------------------------------------------------*/ |
| 149 | |
| 150 | /* See detailed comments in mc_machine.c. */ |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 151 | Int MC_(get_otrack_shadow_offset) ( Int offset, Int szB ); |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 152 | IRType MC_(get_otrack_reg_array_equiv_int_type) ( IRRegArray* arr ); |
| 153 | |
| 154 | /* Constants which are used as the lowest 2 bits in origin tags. |
| 155 | |
| 156 | An origin tag comprises an upper 30-bit ECU field and a lower 2-bit |
| 157 | 'kind' field. The ECU field is a number given out by m_execontext |
| 158 | and has a 1-1 mapping with ExeContext*s. An ECU can be used |
| 159 | directly as an origin tag (otag), but in fact we want to put |
| 160 | additional information 'kind' field to indicate roughly where the |
| 161 | tag came from. This helps print more understandable error messages |
| 162 | for the user -- it has no other purpose. |
| 163 | |
| 164 | Hence the following 2-bit constants are needed for 'kind' field. |
| 165 | |
| 166 | To summarise: |
| 167 | |
| 168 | * Both ECUs and origin tags are represented as 32-bit words |
| 169 | |
| 170 | * m_execontext and the core-tool interface deal purely in ECUs. |
| 171 | They have no knowledge of origin tags - that is a purely |
| 172 | Memcheck-internal matter. |
| 173 | |
| 174 | * all valid ECUs have the lowest 2 bits zero and at least |
| 175 | one of the upper 30 bits nonzero (see VG_(is_plausible_ECU)) |
| 176 | |
| 177 | * to convert from an ECU to an otag, OR in one of the MC_OKIND_ |
| 178 | constants below |
| 179 | |
| 180 | * to convert an otag back to an ECU, AND it with ~3 |
| 181 | */ |
| 182 | |
| 183 | #define MC_OKIND_UNKNOWN 0 /* unknown origin */ |
| 184 | #define MC_OKIND_HEAP 1 /* this is a heap origin */ |
| 185 | #define MC_OKIND_STACK 2 /* this is a stack origin */ |
| 186 | #define MC_OKIND_USER 3 /* arises from user-supplied client req */ |
| 187 | |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 188 | |
| 189 | /*------------------------------------------------------------*/ |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 190 | /*--- Profiling of memory events ---*/ |
| 191 | /*------------------------------------------------------------*/ |
| 192 | |
| 193 | /* Define to collect detailed performance info. */ |
| 194 | /* #define MC_PROFILE_MEMORY */ |
| 195 | |
| 196 | #ifdef MC_PROFILE_MEMORY |
| 197 | # define N_PROF_EVENTS 500 |
| 198 | |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 199 | UInt MC_(event_ctr)[N_PROF_EVENTS]; |
| 200 | HChar* MC_(event_ctr_name)[N_PROF_EVENTS]; |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 201 | |
| 202 | # define PROF_EVENT(ev, name) \ |
| 203 | do { tl_assert((ev) >= 0 && (ev) < N_PROF_EVENTS); \ |
| 204 | /* crude and inaccurate check to ensure the same */ \ |
| 205 | /* event isn't being used with > 1 name */ \ |
| 206 | if (MC_(event_ctr_name)[ev]) \ |
| 207 | tl_assert(name == MC_(event_ctr_name)[ev]); \ |
| 208 | MC_(event_ctr)[ev]++; \ |
| 209 | MC_(event_ctr_name)[ev] = (name); \ |
| 210 | } while (False); |
| 211 | |
| 212 | #else |
| 213 | |
| 214 | # define PROF_EVENT(ev, name) /* */ |
| 215 | |
| 216 | #endif /* MC_PROFILE_MEMORY */ |
| 217 | |
| 218 | |
| 219 | /*------------------------------------------------------------*/ |
| 220 | /*--- V and A bits (Victoria & Albert ?) ---*/ |
| 221 | /*------------------------------------------------------------*/ |
| 222 | |
| 223 | /* The number of entries in the primary map can be altered. However |
| 224 | we hardwire the assumption that each secondary map covers precisely |
| 225 | 64k of address space. */ |
| 226 | #define SM_SIZE 65536 /* DO NOT CHANGE */ |
| 227 | #define SM_MASK (SM_SIZE-1) /* DO NOT CHANGE */ |
| 228 | |
| 229 | #define V_BIT_DEFINED 0 |
| 230 | #define V_BIT_UNDEFINED 1 |
| 231 | |
| 232 | #define V_BITS8_DEFINED 0 |
| 233 | #define V_BITS8_UNDEFINED 0xFF |
| 234 | |
| 235 | #define V_BITS16_DEFINED 0 |
| 236 | #define V_BITS16_UNDEFINED 0xFFFF |
| 237 | |
| 238 | #define V_BITS32_DEFINED 0 |
| 239 | #define V_BITS32_UNDEFINED 0xFFFFFFFF |
| 240 | |
| 241 | #define V_BITS64_DEFINED 0ULL |
| 242 | #define V_BITS64_UNDEFINED 0xFFFFFFFFFFFFFFFFULL |
| 243 | |
| 244 | |
| 245 | /*------------------------------------------------------------*/ |
| 246 | /*--- Leak checking ---*/ |
| 247 | /*------------------------------------------------------------*/ |
| 248 | |
njn | 718d3b1 | 2006-12-16 00:54:12 +0000 | [diff] [blame] | 249 | typedef |
| 250 | enum { |
njn | 29a5c01 | 2009-05-06 06:15:55 +0000 | [diff] [blame] | 251 | // Nb: the order is important -- it dictates the order of loss records |
| 252 | // of equal sizes. |
| 253 | Reachable =0, // Definitely reachable from root-set. |
| 254 | Possible =1, // Possibly reachable from root-set; involves at |
njn | 8225cc0 | 2009-03-09 22:52:24 +0000 | [diff] [blame] | 255 | // least one interior-pointer along the way. |
njn | 29a5c01 | 2009-05-06 06:15:55 +0000 | [diff] [blame] | 256 | IndirectLeak =2, // Leaked, but reachable from another leaked block |
| 257 | // (be it Unreached or IndirectLeak). |
| 258 | Unreached =3, // Not reached, ie. leaked. |
| 259 | // (At best, only reachable from itself via a cycle.) |
njn | 718d3b1 | 2006-12-16 00:54:12 +0000 | [diff] [blame] | 260 | } |
| 261 | Reachedness; |
| 262 | |
philippe | a22f59d | 2012-01-26 23:13:52 +0000 | [diff] [blame] | 263 | |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 264 | /* For VALGRIND_COUNT_LEAKS client request */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 265 | extern SizeT MC_(bytes_leaked); |
| 266 | extern SizeT MC_(bytes_indirect); |
| 267 | extern SizeT MC_(bytes_dubious); |
| 268 | extern SizeT MC_(bytes_reachable); |
| 269 | extern SizeT MC_(bytes_suppressed); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 270 | |
njn | 8df80b2 | 2009-03-02 05:11:06 +0000 | [diff] [blame] | 271 | /* For VALGRIND_COUNT_LEAK_BLOCKS client request */ |
| 272 | extern SizeT MC_(blocks_leaked); |
| 273 | extern SizeT MC_(blocks_indirect); |
| 274 | extern SizeT MC_(blocks_dubious); |
| 275 | extern SizeT MC_(blocks_reachable); |
| 276 | extern SizeT MC_(blocks_suppressed); |
| 277 | |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 278 | typedef |
| 279 | enum { |
| 280 | LC_Off, |
| 281 | LC_Summary, |
| 282 | LC_Full, |
| 283 | } |
| 284 | LeakCheckMode; |
| 285 | |
sewardj | c8bd1df | 2011-06-26 12:41:33 +0000 | [diff] [blame] | 286 | typedef |
| 287 | enum { |
| 288 | LCD_Any, // output all loss records, whatever the delta |
| 289 | LCD_Increased, // output loss records with an increase in size or blocks |
| 290 | LCD_Changed, // output loss records with an increase or |
| 291 | //decrease in size or blocks |
| 292 | } |
| 293 | LeakCheckDeltaMode; |
| 294 | |
njn | 29a5c01 | 2009-05-06 06:15:55 +0000 | [diff] [blame] | 295 | /* When a LossRecord is put into an OSet, these elements represent the key. */ |
| 296 | typedef |
| 297 | struct _LossRecordKey { |
| 298 | Reachedness state; // LC_Extra.state value shared by all blocks. |
| 299 | ExeContext* allocated_at; // Where they were allocated. |
| 300 | } |
| 301 | LossRecordKey; |
| 302 | |
njn | b7a4e2e | 2009-05-01 00:30:43 +0000 | [diff] [blame] | 303 | /* A loss record, used for generating err msgs. Multiple leaked blocks can be |
| 304 | * merged into a single loss record if they have the same state and similar |
| 305 | * enough allocation points (controlled by --leak-resolution). */ |
njn | 718d3b1 | 2006-12-16 00:54:12 +0000 | [diff] [blame] | 306 | typedef |
| 307 | struct _LossRecord { |
njn | 29a5c01 | 2009-05-06 06:15:55 +0000 | [diff] [blame] | 308 | LossRecordKey key; // Key, when used in an OSet. |
| 309 | SizeT szB; // Sum of all MC_Chunk.szB values. |
| 310 | SizeT indirect_szB; // Sum of all LC_Extra.indirect_szB values. |
| 311 | UInt num_blocks; // Number of blocks represented by the record. |
sewardj | c8bd1df | 2011-06-26 12:41:33 +0000 | [diff] [blame] | 312 | SizeT old_szB; // old_* values are the values found during the |
| 313 | SizeT old_indirect_szB; // previous leak search. old_* values are used to |
| 314 | UInt old_num_blocks; // output only the changed/new loss records |
njn | 718d3b1 | 2006-12-16 00:54:12 +0000 | [diff] [blame] | 315 | } |
| 316 | LossRecord; |
| 317 | |
sewardj | c8bd1df | 2011-06-26 12:41:33 +0000 | [diff] [blame] | 318 | typedef |
| 319 | struct _LeakCheckParams { |
| 320 | LeakCheckMode mode; |
| 321 | Bool show_reachable; |
| 322 | Bool show_possibly_lost; |
| 323 | LeakCheckDeltaMode deltamode; |
philippe | 8423490 | 2012-01-14 13:53:13 +0000 | [diff] [blame] | 324 | UInt max_loss_records_output; // limit on the nr of loss records output. |
sewardj | c8bd1df | 2011-06-26 12:41:33 +0000 | [diff] [blame] | 325 | Bool requested_by_monitor_command; // True when requested by gdb/vgdb. |
| 326 | } |
| 327 | LeakCheckParams; |
| 328 | |
philippe | 8423490 | 2012-01-14 13:53:13 +0000 | [diff] [blame] | 329 | void MC_(detect_memory_leaks) ( ThreadId tid, LeakCheckParams * lcp); |
sewardj | c8bd1df | 2011-06-26 12:41:33 +0000 | [diff] [blame] | 330 | |
| 331 | // maintains the lcp.deltamode given in the last call to detect_memory_leaks |
| 332 | extern LeakCheckDeltaMode MC_(detect_memory_leaks_last_delta_mode); |
| 333 | |
philippe | a22f59d | 2012-01-26 23:13:52 +0000 | [diff] [blame] | 334 | // prints the list of blocks corresponding to the given loss_record_nr. |
| 335 | // Returns True if loss_record_nr identifies a correct loss record from last leak search. |
| 336 | // Returns False otherwise. |
| 337 | Bool MC_(print_block_list) ( UInt loss_record_nr); |
| 338 | |
| 339 | // Prints the addresses/registers/... at which a pointer to |
| 340 | // the given range [address, address+szB[ is found. |
| 341 | void MC_(who_points_at) ( Addr address, SizeT szB); |
| 342 | |
sewardj | 30b3eca | 2011-06-28 08:20:39 +0000 | [diff] [blame] | 343 | // if delta_mode == LCD_Any, prints in buf an empty string |
sewardj | c8bd1df | 2011-06-26 12:41:33 +0000 | [diff] [blame] | 344 | // otherwise prints a delta in the layout " (+%'lu)" or " (-%'lu)" |
| 345 | extern char * MC_(snprintf_delta) (char * buf, Int size, |
| 346 | SizeT current_val, SizeT old_val, |
| 347 | LeakCheckDeltaMode delta_mode); |
| 348 | |
njn | 8225cc0 | 2009-03-09 22:52:24 +0000 | [diff] [blame] | 349 | |
| 350 | Bool MC_(is_valid_aligned_word) ( Addr a ); |
| 351 | Bool MC_(is_within_valid_secondary) ( Addr a ); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 352 | |
philippe | a22f59d | 2012-01-26 23:13:52 +0000 | [diff] [blame] | 353 | // Prints as user msg a description of the given loss record. |
| 354 | void MC_(pp_LossRecord)(UInt n_this_record, UInt n_total_records, |
| 355 | LossRecord* l); |
njn | 718d3b1 | 2006-12-16 00:54:12 +0000 | [diff] [blame] | 356 | |
| 357 | |
| 358 | /*------------------------------------------------------------*/ |
| 359 | /*--- Errors and suppressions ---*/ |
| 360 | /*------------------------------------------------------------*/ |
| 361 | |
sewardj | 7ce7166 | 2008-05-02 10:33:15 +0000 | [diff] [blame] | 362 | /* Did we show to the user, any errors for which an uninitialised |
| 363 | value origin could have been collected (but wasn't) ? If yes, |
| 364 | then, at the end of the run, print a 1 line message advising that a |
| 365 | rerun with --track-origins=yes might help. */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 366 | extern Bool MC_(any_value_errors); |
sewardj | 7ce7166 | 2008-05-02 10:33:15 +0000 | [diff] [blame] | 367 | |
| 368 | /* Standard functions for error and suppressions as required by the |
| 369 | core/tool iface */ |
sewardj | 6b523cd | 2009-07-15 14:49:40 +0000 | [diff] [blame] | 370 | Bool MC_(eq_Error) ( VgRes res, Error* e1, Error* e2 ); |
| 371 | void MC_(before_pp_Error) ( Error* err ); |
| 372 | void MC_(pp_Error) ( Error* err ); |
| 373 | UInt MC_(update_Error_extra) ( Error* err ); |
sewardj | 7ce7166 | 2008-05-02 10:33:15 +0000 | [diff] [blame] | 374 | |
| 375 | Bool MC_(is_recognised_suppression) ( Char* name, Supp* su ); |
| 376 | |
njn | 35db56c | 2009-07-24 07:38:29 +0000 | [diff] [blame] | 377 | Bool MC_(read_extra_suppression_info) ( Int fd, Char** buf, |
| 378 | SizeT* nBuf, Supp *su ); |
sewardj | 7ce7166 | 2008-05-02 10:33:15 +0000 | [diff] [blame] | 379 | |
| 380 | Bool MC_(error_matches_suppression) ( Error* err, Supp* su ); |
| 381 | |
sewardj | 588adef | 2009-08-15 22:41:51 +0000 | [diff] [blame] | 382 | Bool MC_(get_extra_suppression_info) ( Error* err, |
| 383 | /*OUT*/Char* buf, Int nBuf ); |
sewardj | 7ce7166 | 2008-05-02 10:33:15 +0000 | [diff] [blame] | 384 | |
| 385 | Char* MC_(get_error_name) ( Error* err ); |
| 386 | |
| 387 | /* Recording of errors */ |
| 388 | void MC_(record_address_error) ( ThreadId tid, Addr a, Int szB, |
| 389 | Bool isWrite ); |
| 390 | void MC_(record_cond_error) ( ThreadId tid, UInt otag ); |
| 391 | void MC_(record_value_error) ( ThreadId tid, Int szB, UInt otag ); |
| 392 | void MC_(record_jump_error) ( ThreadId tid, Addr a ); |
| 393 | |
| 394 | void MC_(record_free_error) ( ThreadId tid, Addr a ); |
| 395 | void MC_(record_illegal_mempool_error) ( ThreadId tid, Addr a ); |
| 396 | void MC_(record_freemismatch_error) ( ThreadId tid, MC_Chunk* mc ); |
| 397 | |
| 398 | void MC_(record_overlap_error) ( ThreadId tid, Char* function, |
| 399 | Addr src, Addr dst, SizeT szB ); |
njn | 1dcee09 | 2009-02-24 03:07:37 +0000 | [diff] [blame] | 400 | void MC_(record_core_mem_error) ( ThreadId tid, Char* msg ); |
sewardj | 7ce7166 | 2008-05-02 10:33:15 +0000 | [diff] [blame] | 401 | void MC_(record_regparam_error) ( ThreadId tid, Char* msg, UInt otag ); |
| 402 | void MC_(record_memparam_error) ( ThreadId tid, Addr a, |
| 403 | Bool isAddrErr, Char* msg, UInt otag ); |
| 404 | void MC_(record_user_error) ( ThreadId tid, Addr a, |
| 405 | Bool isAddrErr, UInt otag ); |
| 406 | |
| 407 | Bool MC_(record_leak_error) ( ThreadId tid, |
| 408 | UInt n_this_record, |
| 409 | UInt n_total_records, |
| 410 | LossRecord* lossRecord, |
njn | 18afe5d | 2009-08-10 08:25:39 +0000 | [diff] [blame] | 411 | Bool print_record, |
| 412 | Bool count_error ); |
sewardj | 7ce7166 | 2008-05-02 10:33:15 +0000 | [diff] [blame] | 413 | |
sewardj | 3b29048 | 2011-05-06 21:02:55 +0000 | [diff] [blame] | 414 | /* prints a description of address a */ |
| 415 | void MC_(pp_describe_addr) (Addr a); |
| 416 | |
sewardj | 7ce7166 | 2008-05-02 10:33:15 +0000 | [diff] [blame] | 417 | /* Is this address in a user-specified "ignored range" ? */ |
| 418 | Bool MC_(in_ignored_range) ( Addr a ); |
| 419 | |
| 420 | |
| 421 | /*------------------------------------------------------------*/ |
| 422 | /*--- Client blocks ---*/ |
| 423 | /*------------------------------------------------------------*/ |
| 424 | |
| 425 | /* Describes a client block. See mc_main.c. An unused block has |
| 426 | start == size == 0. */ |
| 427 | typedef |
| 428 | struct { |
| 429 | Addr start; |
| 430 | SizeT size; |
| 431 | ExeContext* where; |
| 432 | Char* desc; |
| 433 | } |
| 434 | CGenBlock; |
| 435 | |
| 436 | /* Get access to the client block array. */ |
| 437 | void MC_(get_ClientBlock_array)( /*OUT*/CGenBlock** blocks, |
| 438 | /*OUT*/UWord* nBlocks ); |
| 439 | |
njn | 718d3b1 | 2006-12-16 00:54:12 +0000 | [diff] [blame] | 440 | |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 441 | /*------------------------------------------------------------*/ |
| 442 | /*--- Command line options + defaults ---*/ |
| 443 | /*------------------------------------------------------------*/ |
| 444 | |
| 445 | /* Allow loads from partially-valid addresses? default: YES */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 446 | extern Bool MC_(clo_partial_loads_ok); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 447 | |
| 448 | /* Max volume of the freed blocks queue. */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 449 | extern Long MC_(clo_freelist_vol); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 450 | |
sewardj | 403d8aa | 2011-10-22 19:48:57 +0000 | [diff] [blame] | 451 | /* Blocks with a size >= MC_(clo_freelist_big_blocks) will be put |
| 452 | in the "big block" freed blocks queue. */ |
| 453 | extern Long MC_(clo_freelist_big_blocks); |
| 454 | |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 455 | /* Do leak check at exit? default: NO */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 456 | extern LeakCheckMode MC_(clo_leak_check); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 457 | |
| 458 | /* How closely should we compare ExeContexts in leak records? default: 2 */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 459 | extern VgRes MC_(clo_leak_resolution); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 460 | |
| 461 | /* In leak check, show reachable-but-not-freed blocks? default: NO */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 462 | extern Bool MC_(clo_show_reachable); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 463 | |
bart | 3cedf57 | 2010-08-26 10:56:27 +0000 | [diff] [blame] | 464 | /* In leak check, show possibly-lost blocks? default: YES */ |
| 465 | extern Bool MC_(clo_show_possibly_lost); |
| 466 | |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 467 | /* Assume accesses immediately below %esp are due to gcc-2.96 bugs. |
| 468 | * default: NO */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 469 | extern Bool MC_(clo_workaround_gcc296_bugs); |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 470 | |
sewardj | eb0fa93 | 2007-11-30 21:41:40 +0000 | [diff] [blame] | 471 | /* Fill malloc-d/free-d client blocks with a specific value? -1 if |
| 472 | not, else 0x00 .. 0xFF indicating the fill value to use. Can be |
| 473 | useful for causing programs with bad heap corruption to fail in |
| 474 | more repeatable ways. Note that malloc-filled and free-filled |
| 475 | areas are still undefined and noaccess respectively. This merely |
| 476 | causes them to contain the specified values. */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 477 | extern Int MC_(clo_malloc_fill); |
| 478 | extern Int MC_(clo_free_fill); |
sewardj | eb0fa93 | 2007-11-30 21:41:40 +0000 | [diff] [blame] | 479 | |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 480 | /* Indicates the level of instrumentation/checking done by Memcheck. |
| 481 | |
| 482 | 1 = No undefined value checking, Addrcheck-style behaviour only: |
| 483 | only address checking is done. This is faster but finds fewer |
| 484 | errors. Note that although Addrcheck had 1 bit per byte |
| 485 | overhead vs the old Memcheck's 9 bits per byte, with this mode |
| 486 | and compressed V bits, no memory is saved with this mode -- |
| 487 | it's still 2 bits per byte overhead. This is a little wasteful |
| 488 | -- it could be done with 1 bit per byte -- but lets us reuse |
| 489 | the many shadow memory access functions. Note that in this |
| 490 | mode neither the secondary V bit table nor the origin-tag cache |
| 491 | are used. |
| 492 | |
| 493 | 2 = Address checking and Undefined value checking are performed, |
| 494 | but origins are not tracked. So the origin-tag cache is not |
| 495 | used in this mode. This setting is the default and corresponds |
| 496 | to the "normal" Memcheck behaviour that has shipped for years. |
| 497 | |
| 498 | 3 = Address checking, undefined value checking, and origins for |
| 499 | undefined values are tracked. |
| 500 | |
| 501 | The default is 2. |
| 502 | */ |
sewardj | 505a819 | 2008-07-18 20:15:46 +0000 | [diff] [blame] | 503 | extern Int MC_(clo_mc_level); |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 504 | |
njn | 1d0825f | 2006-03-27 11:37:07 +0000 | [diff] [blame] | 505 | |
| 506 | /*------------------------------------------------------------*/ |
| 507 | /*--- Instrumentation ---*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 508 | /*------------------------------------------------------------*/ |
| 509 | |
njn | 66fe05a | 2003-07-22 09:12:33 +0000 | [diff] [blame] | 510 | /* Functions defined in mc_main.c */ |
sewardj | 9544807 | 2004-11-22 20:19:51 +0000 | [diff] [blame] | 511 | |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 512 | /* For the fail_w_o functions, the UWord arg is actually the 32-bit |
| 513 | origin tag and should really be UInt, but to be simple and safe |
| 514 | considering it's called from generated code, just claim it to be a |
| 515 | UWord. */ |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 516 | VG_REGPARM(2) void MC_(helperc_value_checkN_fail_w_o) ( HWord, UWord ); |
| 517 | VG_REGPARM(1) void MC_(helperc_value_check8_fail_w_o) ( UWord ); |
| 518 | VG_REGPARM(1) void MC_(helperc_value_check4_fail_w_o) ( UWord ); |
| 519 | VG_REGPARM(1) void MC_(helperc_value_check1_fail_w_o) ( UWord ); |
| 520 | VG_REGPARM(1) void MC_(helperc_value_check0_fail_w_o) ( UWord ); |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 521 | |
| 522 | /* And call these ones instead to report an uninitialised value error |
| 523 | but with no origin available. */ |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 524 | VG_REGPARM(1) void MC_(helperc_value_checkN_fail_no_o) ( HWord ); |
| 525 | VG_REGPARM(0) void MC_(helperc_value_check8_fail_no_o) ( void ); |
| 526 | VG_REGPARM(0) void MC_(helperc_value_check4_fail_no_o) ( void ); |
| 527 | VG_REGPARM(0) void MC_(helperc_value_check1_fail_no_o) ( void ); |
| 528 | VG_REGPARM(0) void MC_(helperc_value_check0_fail_no_o) ( void ); |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 529 | |
| 530 | /* V-bits load/store helpers */ |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 531 | VG_REGPARM(1) void MC_(helperc_STOREV64be) ( Addr, ULong ); |
| 532 | VG_REGPARM(1) void MC_(helperc_STOREV64le) ( Addr, ULong ); |
| 533 | VG_REGPARM(2) void MC_(helperc_STOREV32be) ( Addr, UWord ); |
| 534 | VG_REGPARM(2) void MC_(helperc_STOREV32le) ( Addr, UWord ); |
| 535 | VG_REGPARM(2) void MC_(helperc_STOREV16be) ( Addr, UWord ); |
| 536 | VG_REGPARM(2) void MC_(helperc_STOREV16le) ( Addr, UWord ); |
| 537 | VG_REGPARM(2) void MC_(helperc_STOREV8) ( Addr, UWord ); |
sewardj | 9544807 | 2004-11-22 20:19:51 +0000 | [diff] [blame] | 538 | |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 539 | VG_REGPARM(1) ULong MC_(helperc_LOADV64be) ( Addr ); |
| 540 | VG_REGPARM(1) ULong MC_(helperc_LOADV64le) ( Addr ); |
| 541 | VG_REGPARM(1) UWord MC_(helperc_LOADV32be) ( Addr ); |
| 542 | VG_REGPARM(1) UWord MC_(helperc_LOADV32le) ( Addr ); |
| 543 | VG_REGPARM(1) UWord MC_(helperc_LOADV16be) ( Addr ); |
| 544 | VG_REGPARM(1) UWord MC_(helperc_LOADV16le) ( Addr ); |
| 545 | VG_REGPARM(1) UWord MC_(helperc_LOADV8) ( Addr ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 546 | |
sewardj | 56adc35 | 2008-05-02 11:25:17 +0000 | [diff] [blame] | 547 | void MC_(helperc_MAKE_STACK_UNINIT) ( Addr base, UWord len, |
| 548 | Addr nia ); |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 549 | |
| 550 | /* Origin tag load/store helpers */ |
| 551 | VG_REGPARM(2) void MC_(helperc_b_store1) ( Addr a, UWord d32 ); |
| 552 | VG_REGPARM(2) void MC_(helperc_b_store2) ( Addr a, UWord d32 ); |
| 553 | VG_REGPARM(2) void MC_(helperc_b_store4) ( Addr a, UWord d32 ); |
| 554 | VG_REGPARM(2) void MC_(helperc_b_store8) ( Addr a, UWord d32 ); |
| 555 | VG_REGPARM(2) void MC_(helperc_b_store16)( Addr a, UWord d32 ); |
sewardj | 45fa9f4 | 2012-05-21 10:18:10 +0000 | [diff] [blame] | 556 | VG_REGPARM(2) void MC_(helperc_b_store32)( Addr a, UWord d32 ); |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 557 | VG_REGPARM(1) UWord MC_(helperc_b_load1) ( Addr a ); |
| 558 | VG_REGPARM(1) UWord MC_(helperc_b_load2) ( Addr a ); |
| 559 | VG_REGPARM(1) UWord MC_(helperc_b_load4) ( Addr a ); |
| 560 | VG_REGPARM(1) UWord MC_(helperc_b_load8) ( Addr a ); |
| 561 | VG_REGPARM(1) UWord MC_(helperc_b_load16)( Addr a ); |
sewardj | 45fa9f4 | 2012-05-21 10:18:10 +0000 | [diff] [blame] | 562 | VG_REGPARM(1) UWord MC_(helperc_b_load32)( Addr a ); |
sewardj | 826ec49 | 2005-05-12 18:05:00 +0000 | [diff] [blame] | 563 | |
njn | 51d827b | 2005-05-09 01:02:08 +0000 | [diff] [blame] | 564 | /* Functions defined in mc_translate.c */ |
sewardj | 0b9d74a | 2006-12-24 02:24:11 +0000 | [diff] [blame] | 565 | IRSB* MC_(instrument) ( VgCallbackClosure* closure, |
| 566 | IRSB* bb_in, |
sewardj | 461df9c | 2006-01-17 02:06:39 +0000 | [diff] [blame] | 567 | VexGuestLayout* layout, |
| 568 | VexGuestExtents* vge, |
sewardj | 4ba057c | 2005-10-18 12:04:18 +0000 | [diff] [blame] | 569 | IRType gWordTy, IRType hWordTy ); |
sewardj | 8d61eb1 | 2005-07-08 09:46:53 +0000 | [diff] [blame] | 570 | |
sewardj | 81651dc | 2007-08-28 06:05:20 +0000 | [diff] [blame] | 571 | IRSB* MC_(final_tidy) ( IRSB* ); |
| 572 | |
sewardj | 8d61eb1 | 2005-07-08 09:46:53 +0000 | [diff] [blame] | 573 | #endif /* ndef __MC_INCLUDE_H */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 574 | |
| 575 | /*--------------------------------------------------------------------*/ |
nethercote | 8b76fe5 | 2004-11-08 19:20:09 +0000 | [diff] [blame] | 576 | /*--- end ---*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 577 | /*--------------------------------------------------------------------*/ |