njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1 | |
| 2 | /*--------------------------------------------------------------------*/ |
nethercote | 137bc55 | 2003-11-14 17:47:54 +0000 | [diff] [blame] | 3 | /*--- The AddrCheck tool: like MemCheck, but only does address ---*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 4 | /*--- checking. No definedness checking. ---*/ |
njn25 | cac76cb | 2002-09-23 11:21:57 +0000 | [diff] [blame] | 5 | /*--- ac_main.c ---*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 6 | /*--------------------------------------------------------------------*/ |
| 7 | |
| 8 | /* |
nethercote | 137bc55 | 2003-11-14 17:47:54 +0000 | [diff] [blame] | 9 | This file is part of AddrCheck, a lightweight Valgrind tool for |
njn | c953984 | 2002-10-02 13:26:35 +0000 | [diff] [blame] | 10 | detecting memory errors. |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 11 | |
nethercote | bb1c991 | 2004-01-04 16:43:23 +0000 | [diff] [blame] | 12 | Copyright (C) 2000-2004 Julian Seward |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 13 | jseward@acm.org |
| 14 | |
| 15 | This program is free software; you can redistribute it and/or |
| 16 | modify it under the terms of the GNU General Public License as |
| 17 | published by the Free Software Foundation; either version 2 of the |
| 18 | License, or (at your option) any later version. |
| 19 | |
| 20 | This program is distributed in the hope that it will be useful, but |
| 21 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 23 | General Public License for more details. |
| 24 | |
| 25 | You should have received a copy of the GNU General Public License |
| 26 | along with this program; if not, write to the Free Software |
| 27 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 28 | 02111-1307, USA. |
| 29 | |
| 30 | The GNU General Public License is contained in the file COPYING. |
| 31 | */ |
| 32 | |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 33 | #include "mac_shared.h" |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 34 | #include "memcheck.h" |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 35 | //#include "vg_profile.c" |
| 36 | |
njn | 9b007f6 | 2003-04-07 14:40:25 +0000 | [diff] [blame] | 37 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 38 | /*------------------------------------------------------------*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 39 | /*--- Comparing and printing errors ---*/ |
| 40 | /*------------------------------------------------------------*/ |
| 41 | |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 42 | void SK_(pp_SkinError) ( Error* err ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 43 | { |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 44 | MAC_Error* err_extra = VG_(get_error_extra)(err); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 45 | |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 46 | switch (VG_(get_error_kind)(err)) { |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 47 | case CoreMemErr: |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 48 | VG_(message)(Vg_UserMsg, "%s contains unaddressable byte(s)", |
| 49 | VG_(get_error_string)(err)); |
| 50 | VG_(pp_ExeContext)( VG_(get_error_where)(err) ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 51 | break; |
| 52 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 53 | case ParamErr: |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 54 | VG_(message)(Vg_UserMsg, |
| 55 | "Syscall param %s contains unaddressable byte(s)", |
| 56 | VG_(get_error_string)(err) ); |
| 57 | VG_(pp_ExeContext)( VG_(get_error_where)(err) ); |
| 58 | MAC_(pp_AddrInfo)(VG_(get_error_address)(err), &err_extra->addrinfo); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 59 | break; |
| 60 | |
| 61 | case UserErr: |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 62 | VG_(message)(Vg_UserMsg, |
| 63 | "Unaddressable byte(s) found during client check request"); |
| 64 | VG_(pp_ExeContext)( VG_(get_error_where)(err) ); |
| 65 | MAC_(pp_AddrInfo)(VG_(get_error_address)(err), &err_extra->addrinfo); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 66 | break; |
| 67 | |
| 68 | default: |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 69 | MAC_(pp_shared_SkinError)(err); |
| 70 | break; |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 71 | } |
| 72 | } |
| 73 | |
| 74 | /*------------------------------------------------------------*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 75 | /*--- Suppressions ---*/ |
| 76 | /*------------------------------------------------------------*/ |
| 77 | |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 78 | Bool SK_(recognised_suppression) ( Char* name, Supp* su ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 79 | { |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 80 | return MAC_(shared_recognised_suppression)(name, su); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 81 | } |
| 82 | |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 83 | #define DEBUG(fmt, args...) //VG_(printf)(fmt, ## args) |
| 84 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 85 | /*------------------------------------------------------------*/ |
| 86 | /*--- Low-level support for memory checking. ---*/ |
| 87 | /*------------------------------------------------------------*/ |
| 88 | |
| 89 | /* All reads and writes are checked against a memory map, which |
| 90 | records the state of all memory in the process. The memory map is |
| 91 | organised like this: |
| 92 | |
| 93 | The top 16 bits of an address are used to index into a top-level |
| 94 | map table, containing 65536 entries. Each entry is a pointer to a |
| 95 | second-level map, which records the accesibililty and validity |
| 96 | permissions for the 65536 bytes indexed by the lower 16 bits of the |
| 97 | address. Each byte is represented by one bit, indicating |
| 98 | accessibility. So each second-level map contains 8192 bytes. This |
| 99 | two-level arrangement conveniently divides the 4G address space |
| 100 | into 64k lumps, each size 64k bytes. |
| 101 | |
| 102 | All entries in the primary (top-level) map must point to a valid |
| 103 | secondary (second-level) map. Since most of the 4G of address |
| 104 | space will not be in use -- ie, not mapped at all -- there is a |
| 105 | distinguished secondary map, which indicates `not addressible and |
| 106 | not valid' writeable for all bytes. Entries in the primary map for |
| 107 | which the entire 64k is not in use at all point at this |
| 108 | distinguished map. |
| 109 | |
| 110 | [...] lots of stuff deleted due to out of date-ness |
| 111 | |
| 112 | As a final optimisation, the alignment and address checks for |
| 113 | 4-byte loads and stores are combined in a neat way. The primary |
| 114 | map is extended to have 262144 entries (2^18), rather than 2^16. |
| 115 | The top 3/4 of these entries are permanently set to the |
| 116 | distinguished secondary map. For a 4-byte load/store, the |
| 117 | top-level map is indexed not with (addr >> 16) but instead f(addr), |
| 118 | where |
| 119 | |
| 120 | f( XXXX XXXX XXXX XXXX ____ ____ ____ __YZ ) |
| 121 | = ____ ____ ____ __YZ XXXX XXXX XXXX XXXX or |
| 122 | = ____ ____ ____ __ZY XXXX XXXX XXXX XXXX |
| 123 | |
| 124 | ie the lowest two bits are placed above the 16 high address bits. |
| 125 | If either of these two bits are nonzero, the address is misaligned; |
| 126 | this will select a secondary map from the upper 3/4 of the primary |
| 127 | map. Because this is always the distinguished secondary map, a |
| 128 | (bogus) address check failure will result. The failure handling |
| 129 | code can then figure out whether this is a genuine addr check |
| 130 | failure or whether it is a possibly-legitimate access at a |
| 131 | misaligned address. */ |
| 132 | |
| 133 | |
| 134 | /*------------------------------------------------------------*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 135 | /*--- Function declarations. ---*/ |
| 136 | /*------------------------------------------------------------*/ |
| 137 | |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 138 | static void ac_ACCESS4_SLOWLY ( Addr a, Bool isWrite ); |
| 139 | static void ac_ACCESS2_SLOWLY ( Addr a, Bool isWrite ); |
| 140 | static void ac_ACCESS1_SLOWLY ( Addr a, Bool isWrite ); |
nethercote | 928a5f7 | 2004-11-03 18:10:37 +0000 | [diff] [blame] | 141 | static void ac_fpu_ACCESS_check_SLOWLY ( Addr addr, SizeT size, Bool isWrite ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 142 | |
| 143 | /*------------------------------------------------------------*/ |
| 144 | /*--- Data defns. ---*/ |
| 145 | /*------------------------------------------------------------*/ |
| 146 | |
| 147 | typedef |
| 148 | struct { |
| 149 | UChar abits[8192]; |
| 150 | } |
| 151 | AcSecMap; |
| 152 | |
| 153 | static AcSecMap* primary_map[ /*65536*/ 262144 ]; |
| 154 | static AcSecMap distinguished_secondary_map; |
| 155 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 156 | static void init_shadow_memory ( void ) |
| 157 | { |
| 158 | Int i; |
| 159 | |
| 160 | for (i = 0; i < 8192; i++) /* Invalid address */ |
| 161 | distinguished_secondary_map.abits[i] = VGM_BYTE_INVALID; |
| 162 | |
| 163 | /* These entries gradually get overwritten as the used address |
| 164 | space expands. */ |
| 165 | for (i = 0; i < 65536; i++) |
| 166 | primary_map[i] = &distinguished_secondary_map; |
| 167 | |
| 168 | /* These ones should never change; it's a bug in Valgrind if they do. */ |
| 169 | for (i = 65536; i < 262144; i++) |
| 170 | primary_map[i] = &distinguished_secondary_map; |
| 171 | } |
| 172 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 173 | /*------------------------------------------------------------*/ |
| 174 | /*--- Basic bitmap management, reading and writing. ---*/ |
| 175 | /*------------------------------------------------------------*/ |
| 176 | |
| 177 | /* Allocate and initialise a secondary map. */ |
| 178 | |
| 179 | static AcSecMap* alloc_secondary_map ( __attribute__ ((unused)) |
| 180 | Char* caller ) |
| 181 | { |
| 182 | AcSecMap* map; |
| 183 | UInt i; |
| 184 | PROF_EVENT(10); |
| 185 | |
| 186 | /* Mark all bytes as invalid access and invalid value. */ |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 187 | map = (AcSecMap *)VG_(shadow_alloc)(sizeof(AcSecMap)); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 188 | for (i = 0; i < 8192; i++) |
| 189 | map->abits[i] = VGM_BYTE_INVALID; /* Invalid address */ |
| 190 | |
| 191 | /* VG_(printf)("ALLOC_2MAP(%s)\n", caller ); */ |
| 192 | return map; |
| 193 | } |
| 194 | |
| 195 | |
| 196 | /* Basic reading/writing of the bitmaps, for byte-sized accesses. */ |
| 197 | |
| 198 | static __inline__ UChar get_abit ( Addr a ) |
| 199 | { |
| 200 | AcSecMap* sm = primary_map[a >> 16]; |
| 201 | UInt sm_off = a & 0xFFFF; |
| 202 | PROF_EVENT(20); |
| 203 | # if 0 |
| 204 | if (IS_DISTINGUISHED_SM(sm)) |
| 205 | VG_(message)(Vg_DebugMsg, |
| 206 | "accessed distinguished 2ndary (A)map! 0x%x\n", a); |
| 207 | # endif |
| 208 | return BITARR_TEST(sm->abits, sm_off) |
| 209 | ? VGM_BIT_INVALID : VGM_BIT_VALID; |
| 210 | } |
| 211 | |
sewardj | 5686735 | 2003-10-12 10:27:06 +0000 | [diff] [blame] | 212 | static /* __inline__ */ void set_abit ( Addr a, UChar abit ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 213 | { |
| 214 | AcSecMap* sm; |
| 215 | UInt sm_off; |
| 216 | PROF_EVENT(22); |
| 217 | ENSURE_MAPPABLE(a, "set_abit"); |
| 218 | sm = primary_map[a >> 16]; |
| 219 | sm_off = a & 0xFFFF; |
| 220 | if (abit) |
| 221 | BITARR_SET(sm->abits, sm_off); |
| 222 | else |
| 223 | BITARR_CLEAR(sm->abits, sm_off); |
| 224 | } |
| 225 | |
| 226 | |
| 227 | /* Reading/writing of the bitmaps, for aligned word-sized accesses. */ |
| 228 | |
| 229 | static __inline__ UChar get_abits4_ALIGNED ( Addr a ) |
| 230 | { |
| 231 | AcSecMap* sm; |
| 232 | UInt sm_off; |
| 233 | UChar abits8; |
| 234 | PROF_EVENT(24); |
| 235 | # ifdef VG_DEBUG_MEMORY |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 236 | sk_assert(IS_ALIGNED4_ADDR(a)); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 237 | # endif |
| 238 | sm = primary_map[a >> 16]; |
| 239 | sm_off = a & 0xFFFF; |
| 240 | abits8 = sm->abits[sm_off >> 3]; |
| 241 | abits8 >>= (a & 4 /* 100b */); /* a & 4 is either 0 or 4 */ |
| 242 | abits8 &= 0x0F; |
| 243 | return abits8; |
| 244 | } |
| 245 | |
| 246 | |
| 247 | |
| 248 | /*------------------------------------------------------------*/ |
| 249 | /*--- Setting permissions over address ranges. ---*/ |
| 250 | /*------------------------------------------------------------*/ |
| 251 | |
sewardj | 5686735 | 2003-10-12 10:27:06 +0000 | [diff] [blame] | 252 | static /* __inline__ */ |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 253 | void set_address_range_perms ( Addr a, SizeT len, UInt example_a_bit ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 254 | { |
| 255 | UChar abyte8; |
| 256 | UInt sm_off; |
| 257 | AcSecMap* sm; |
| 258 | |
| 259 | PROF_EVENT(30); |
| 260 | |
| 261 | if (len == 0) |
| 262 | return; |
| 263 | |
| 264 | if (len > 100 * 1000 * 1000) { |
| 265 | VG_(message)(Vg_UserMsg, |
| 266 | "Warning: set address range perms: " |
| 267 | "large range %u, a %d", |
| 268 | len, example_a_bit ); |
| 269 | } |
| 270 | |
| 271 | VGP_PUSHCC(VgpSetMem); |
| 272 | |
| 273 | /* Requests to change permissions of huge address ranges may |
| 274 | indicate bugs in our machinery. 30,000,000 is arbitrary, but so |
| 275 | far all legitimate requests have fallen beneath that size. */ |
| 276 | /* 4 Mar 02: this is just stupid; get rid of it. */ |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 277 | /* sk_assert(len < 30000000); */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 278 | |
| 279 | /* Check the permissions make sense. */ |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 280 | sk_assert(example_a_bit == VGM_BIT_VALID |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 281 | || example_a_bit == VGM_BIT_INVALID); |
| 282 | |
| 283 | /* In order that we can charge through the address space at 8 |
| 284 | bytes/main-loop iteration, make up some perms. */ |
| 285 | abyte8 = (example_a_bit << 7) |
| 286 | | (example_a_bit << 6) |
| 287 | | (example_a_bit << 5) |
| 288 | | (example_a_bit << 4) |
| 289 | | (example_a_bit << 3) |
| 290 | | (example_a_bit << 2) |
| 291 | | (example_a_bit << 1) |
| 292 | | (example_a_bit << 0); |
| 293 | |
| 294 | # ifdef VG_DEBUG_MEMORY |
| 295 | /* Do it ... */ |
| 296 | while (True) { |
| 297 | PROF_EVENT(31); |
| 298 | if (len == 0) break; |
| 299 | set_abit ( a, example_a_bit ); |
| 300 | set_vbyte ( a, vbyte ); |
| 301 | a++; |
| 302 | len--; |
| 303 | } |
| 304 | |
| 305 | # else |
| 306 | /* Slowly do parts preceding 8-byte alignment. */ |
| 307 | while (True) { |
| 308 | PROF_EVENT(31); |
| 309 | if (len == 0) break; |
| 310 | if ((a % 8) == 0) break; |
| 311 | set_abit ( a, example_a_bit ); |
| 312 | a++; |
| 313 | len--; |
| 314 | } |
| 315 | |
| 316 | if (len == 0) { |
| 317 | VGP_POPCC(VgpSetMem); |
| 318 | return; |
| 319 | } |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 320 | sk_assert((a % 8) == 0 && len > 0); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 321 | |
| 322 | /* Once aligned, go fast. */ |
| 323 | while (True) { |
| 324 | PROF_EVENT(32); |
| 325 | if (len < 8) break; |
| 326 | ENSURE_MAPPABLE(a, "set_address_range_perms(fast)"); |
| 327 | sm = primary_map[a >> 16]; |
| 328 | sm_off = a & 0xFFFF; |
| 329 | sm->abits[sm_off >> 3] = abyte8; |
| 330 | a += 8; |
| 331 | len -= 8; |
| 332 | } |
| 333 | |
| 334 | if (len == 0) { |
| 335 | VGP_POPCC(VgpSetMem); |
| 336 | return; |
| 337 | } |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 338 | sk_assert((a % 8) == 0 && len > 0 && len < 8); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 339 | |
| 340 | /* Finish the upper fragment. */ |
| 341 | while (True) { |
| 342 | PROF_EVENT(33); |
| 343 | if (len == 0) break; |
| 344 | set_abit ( a, example_a_bit ); |
| 345 | a++; |
| 346 | len--; |
| 347 | } |
| 348 | # endif |
| 349 | |
| 350 | /* Check that zero page and highest page have not been written to |
| 351 | -- this could happen with buggy syscall wrappers. Today |
| 352 | (2001-04-26) had precisely such a problem with __NR_setitimer. */ |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 353 | sk_assert(SK_(cheap_sanity_check)()); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 354 | VGP_POPCC(VgpSetMem); |
| 355 | } |
| 356 | |
| 357 | /* Set permissions for address ranges ... */ |
| 358 | |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 359 | static void ac_make_noaccess ( Addr a, SizeT len ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 360 | { |
| 361 | PROF_EVENT(35); |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 362 | DEBUG("ac_make_noaccess(%p, %x)\n", a, len); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 363 | set_address_range_perms ( a, len, VGM_BIT_INVALID ); |
| 364 | } |
| 365 | |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 366 | static void ac_make_accessible ( Addr a, SizeT len ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 367 | { |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 368 | PROF_EVENT(38); |
| 369 | DEBUG("ac_make_accessible(%p, %x)\n", a, len); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 370 | set_address_range_perms ( a, len, VGM_BIT_VALID ); |
| 371 | } |
| 372 | |
njn | 9b007f6 | 2003-04-07 14:40:25 +0000 | [diff] [blame] | 373 | static __inline__ |
| 374 | void make_aligned_word_noaccess(Addr a) |
| 375 | { |
| 376 | AcSecMap* sm; |
| 377 | UInt sm_off; |
| 378 | UChar mask; |
| 379 | |
| 380 | VGP_PUSHCC(VgpESPAdj); |
| 381 | ENSURE_MAPPABLE(a, "make_aligned_word_noaccess"); |
| 382 | sm = primary_map[a >> 16]; |
| 383 | sm_off = a & 0xFFFF; |
| 384 | mask = 0x0F; |
| 385 | mask <<= (a & 4 /* 100b */); /* a & 4 is either 0 or 4 */ |
| 386 | /* mask now contains 1s where we wish to make address bits invalid (1s). */ |
| 387 | sm->abits[sm_off >> 3] |= mask; |
| 388 | VGP_POPCC(VgpESPAdj); |
| 389 | } |
| 390 | |
| 391 | static __inline__ |
| 392 | void make_aligned_word_accessible(Addr a) |
| 393 | { |
| 394 | AcSecMap* sm; |
| 395 | UInt sm_off; |
| 396 | UChar mask; |
| 397 | |
| 398 | VGP_PUSHCC(VgpESPAdj); |
| 399 | ENSURE_MAPPABLE(a, "make_aligned_word_accessible"); |
| 400 | sm = primary_map[a >> 16]; |
| 401 | sm_off = a & 0xFFFF; |
| 402 | mask = 0x0F; |
| 403 | mask <<= (a & 4 /* 100b */); /* a & 4 is either 0 or 4 */ |
| 404 | /* mask now contains 1s where we wish to make address bits |
| 405 | invalid (0s). */ |
| 406 | sm->abits[sm_off >> 3] &= ~mask; |
| 407 | VGP_POPCC(VgpESPAdj); |
| 408 | } |
| 409 | |
| 410 | /* Nb: by "aligned" here we mean 8-byte aligned */ |
| 411 | static __inline__ |
| 412 | void make_aligned_doubleword_accessible(Addr a) |
| 413 | { |
| 414 | AcSecMap* sm; |
| 415 | UInt sm_off; |
| 416 | |
| 417 | VGP_PUSHCC(VgpESPAdj); |
| 418 | ENSURE_MAPPABLE(a, "make_aligned_doubleword_accessible"); |
| 419 | sm = primary_map[a >> 16]; |
| 420 | sm_off = a & 0xFFFF; |
| 421 | sm->abits[sm_off >> 3] = VGM_BYTE_VALID; |
| 422 | VGP_POPCC(VgpESPAdj); |
| 423 | } |
| 424 | |
| 425 | static __inline__ |
| 426 | void make_aligned_doubleword_noaccess(Addr a) |
| 427 | { |
| 428 | AcSecMap* sm; |
| 429 | UInt sm_off; |
| 430 | |
| 431 | VGP_PUSHCC(VgpESPAdj); |
| 432 | ENSURE_MAPPABLE(a, "make_aligned_doubleword_noaccess"); |
| 433 | sm = primary_map[a >> 16]; |
| 434 | sm_off = a & 0xFFFF; |
| 435 | sm->abits[sm_off >> 3] = VGM_BYTE_INVALID; |
| 436 | VGP_POPCC(VgpESPAdj); |
| 437 | } |
| 438 | |
| 439 | /* The %esp update handling functions */ |
| 440 | ESP_UPDATE_HANDLERS ( make_aligned_word_accessible, |
| 441 | make_aligned_word_noaccess, |
| 442 | make_aligned_doubleword_accessible, |
| 443 | make_aligned_doubleword_noaccess, |
| 444 | ac_make_accessible, |
| 445 | ac_make_noaccess |
| 446 | ); |
| 447 | |
| 448 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 449 | /* Block-copy permissions (needed for implementing realloc()). */ |
| 450 | |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 451 | static void ac_copy_address_range_state ( Addr src, Addr dst, SizeT len ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 452 | { |
| 453 | UInt i; |
| 454 | |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 455 | DEBUG("ac_copy_address_range_state\n"); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 456 | |
| 457 | PROF_EVENT(40); |
| 458 | for (i = 0; i < len; i++) { |
| 459 | UChar abit = get_abit ( src+i ); |
| 460 | PROF_EVENT(41); |
| 461 | set_abit ( dst+i, abit ); |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | |
| 466 | /* Check permissions for address range. If inadequate permissions |
| 467 | exist, *bad_addr is set to the offending address, so the caller can |
| 468 | know what it is. */ |
| 469 | |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 470 | static __inline__ |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 471 | Bool ac_check_accessible ( Addr a, SizeT len, Addr* bad_addr ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 472 | { |
| 473 | UInt i; |
| 474 | UChar abit; |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 475 | PROF_EVENT(48); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 476 | for (i = 0; i < len; i++) { |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 477 | PROF_EVENT(49); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 478 | abit = get_abit(a); |
| 479 | if (abit == VGM_BIT_INVALID) { |
| 480 | if (bad_addr != NULL) *bad_addr = a; |
| 481 | return False; |
| 482 | } |
| 483 | a++; |
| 484 | } |
| 485 | return True; |
| 486 | } |
| 487 | |
sewardj | ecf8e10 | 2003-07-12 12:11:39 +0000 | [diff] [blame] | 488 | /* The opposite; check that an address range is inaccessible. */ |
| 489 | static |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 490 | Bool ac_check_noaccess ( Addr a, SizeT len, Addr* bad_addr ) |
sewardj | ecf8e10 | 2003-07-12 12:11:39 +0000 | [diff] [blame] | 491 | { |
| 492 | UInt i; |
| 493 | UChar abit; |
| 494 | PROF_EVENT(48); |
| 495 | for (i = 0; i < len; i++) { |
| 496 | PROF_EVENT(49); |
| 497 | abit = get_abit(a); |
| 498 | if (abit == VGM_BIT_VALID) { |
| 499 | if (bad_addr != NULL) *bad_addr = a; |
| 500 | return False; |
| 501 | } |
| 502 | a++; |
| 503 | } |
| 504 | return True; |
| 505 | } |
| 506 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 507 | /* Check a zero-terminated ascii string. Tricky -- don't want to |
| 508 | examine the actual bytes, to find the end, until we're sure it is |
| 509 | safe to do so. */ |
| 510 | |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 511 | static __inline__ |
| 512 | Bool ac_check_readable_asciiz ( Addr a, Addr* bad_addr ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 513 | { |
| 514 | UChar abit; |
| 515 | PROF_EVENT(46); |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 516 | DEBUG("ac_check_readable_asciiz\n"); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 517 | while (True) { |
| 518 | PROF_EVENT(47); |
| 519 | abit = get_abit(a); |
| 520 | if (abit != VGM_BIT_VALID) { |
| 521 | if (bad_addr != NULL) *bad_addr = a; |
| 522 | return False; |
| 523 | } |
| 524 | /* Ok, a is safe to read. */ |
| 525 | if (* ((UChar*)a) == 0) return True; |
| 526 | a++; |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | |
| 531 | /*------------------------------------------------------------*/ |
| 532 | /*--- Memory event handlers ---*/ |
| 533 | /*------------------------------------------------------------*/ |
| 534 | |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 535 | static __inline__ |
njn | 7271864 | 2003-07-24 08:45:32 +0000 | [diff] [blame] | 536 | void ac_check_is_accessible ( CorePart part, ThreadId tid, |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 537 | Char* s, Addr base, SizeT size, Bool isWrite ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 538 | { |
| 539 | Bool ok; |
| 540 | Addr bad_addr; |
| 541 | |
| 542 | VGP_PUSHCC(VgpCheckMem); |
| 543 | |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 544 | ok = ac_check_accessible ( base, size, &bad_addr ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 545 | if (!ok) { |
| 546 | switch (part) { |
| 547 | case Vg_CoreSysCall: |
nethercote | 8b76fe5 | 2004-11-08 19:20:09 +0000 | [diff] [blame] | 548 | MAC_(record_param_error) ( tid, bad_addr, /*isReg*/False, |
| 549 | /*isUnaddr*/True, s ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 550 | break; |
| 551 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 552 | case Vg_CoreSignal: |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 553 | sk_assert(isWrite); /* Should only happen with isWrite case */ |
| 554 | /* fall through */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 555 | case Vg_CorePThread: |
nethercote | 8b76fe5 | 2004-11-08 19:20:09 +0000 | [diff] [blame] | 556 | MAC_(record_core_mem_error)( tid, /*isUnaddr*/True, s ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 557 | break; |
| 558 | |
| 559 | /* If we're being asked to jump to a silly address, record an error |
| 560 | message before potentially crashing the entire system. */ |
| 561 | case Vg_CoreTranslate: |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 562 | sk_assert(!isWrite); /* Should only happen with !isWrite case */ |
njn | 7271864 | 2003-07-24 08:45:32 +0000 | [diff] [blame] | 563 | MAC_(record_jump_error)( tid, bad_addr ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 564 | break; |
| 565 | |
| 566 | default: |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 567 | VG_(skin_panic)("ac_check_is_accessible: unexpected CorePart"); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 568 | } |
| 569 | } |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 570 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 571 | VGP_POPCC(VgpCheckMem); |
| 572 | } |
| 573 | |
| 574 | static |
njn | 7271864 | 2003-07-24 08:45:32 +0000 | [diff] [blame] | 575 | void ac_check_is_writable ( CorePart part, ThreadId tid, |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 576 | Char* s, Addr base, SizeT size ) |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 577 | { |
njn | 7271864 | 2003-07-24 08:45:32 +0000 | [diff] [blame] | 578 | ac_check_is_accessible ( part, tid, s, base, size, /*isWrite*/True ); |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 579 | } |
| 580 | |
| 581 | static |
njn | 7271864 | 2003-07-24 08:45:32 +0000 | [diff] [blame] | 582 | void ac_check_is_readable ( CorePart part, ThreadId tid, |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 583 | Char* s, Addr base, SizeT size ) |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 584 | { |
njn | 7271864 | 2003-07-24 08:45:32 +0000 | [diff] [blame] | 585 | ac_check_is_accessible ( part, tid, s, base, size, /*isWrite*/False ); |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 586 | } |
| 587 | |
| 588 | static |
njn | 7271864 | 2003-07-24 08:45:32 +0000 | [diff] [blame] | 589 | void ac_check_is_readable_asciiz ( CorePart part, ThreadId tid, |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 590 | Char* s, Addr str ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 591 | { |
| 592 | Bool ok = True; |
| 593 | Addr bad_addr; |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 594 | |
| 595 | VGP_PUSHCC(VgpCheckMem); |
| 596 | |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 597 | sk_assert(part == Vg_CoreSysCall); |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 598 | ok = ac_check_readable_asciiz ( (Addr)str, &bad_addr ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 599 | if (!ok) { |
nethercote | 8b76fe5 | 2004-11-08 19:20:09 +0000 | [diff] [blame] | 600 | MAC_(record_param_error) ( tid, bad_addr, /*IsReg*/False, |
| 601 | /*IsUnaddr*/True, s ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 602 | } |
| 603 | |
| 604 | VGP_POPCC(VgpCheckMem); |
| 605 | } |
| 606 | |
| 607 | static |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 608 | void ac_new_mem_startup( Addr a, SizeT len, Bool rr, Bool ww, Bool xx ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 609 | { |
njn | 1f3a909 | 2002-10-04 09:22:30 +0000 | [diff] [blame] | 610 | /* Ignore the permissions, just make it readable. Seems to work... */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 611 | DEBUG("new_mem_startup(%p, %u, rr=%u, ww=%u, xx=%u)\n", a,len,rr,ww,xx); |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 612 | ac_make_accessible(a, len); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 613 | } |
| 614 | |
| 615 | static |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 616 | void ac_new_mem_heap ( Addr a, SizeT len, Bool is_inited ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 617 | { |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 618 | ac_make_accessible(a, len); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 619 | } |
| 620 | |
| 621 | static |
nethercote | 451eae9 | 2004-11-02 13:06:32 +0000 | [diff] [blame] | 622 | void ac_set_perms (Addr a, SizeT len, Bool rr, Bool ww, Bool xx) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 623 | { |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 624 | DEBUG("ac_set_perms(%p, %u, rr=%u ww=%u, xx=%u)\n", |
sewardj | 40f8ebe | 2002-10-23 21:46:13 +0000 | [diff] [blame] | 625 | a, len, rr, ww, xx); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 626 | if (rr || ww || xx) { |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 627 | ac_make_accessible(a, len); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 628 | } else { |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 629 | ac_make_noaccess(a, len); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 630 | } |
| 631 | } |
| 632 | |
| 633 | |
| 634 | /*------------------------------------------------------------*/ |
| 635 | /*--- Functions called directly from generated code. ---*/ |
| 636 | /*------------------------------------------------------------*/ |
| 637 | |
| 638 | static __inline__ UInt rotateRight16 ( UInt x ) |
| 639 | { |
| 640 | /* Amazingly, gcc turns this into a single rotate insn. */ |
| 641 | return (x >> 16) | (x << 16); |
| 642 | } |
| 643 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 644 | static __inline__ UInt shiftRight16 ( UInt x ) |
| 645 | { |
| 646 | return x >> 16; |
| 647 | } |
| 648 | |
| 649 | |
| 650 | /* Read/write 1/2/4 sized V bytes, and emit an address error if |
| 651 | needed. */ |
| 652 | |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 653 | /* ac_helperc_ACCESS{1,2,4} handle the common case fast. |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 654 | Under all other circumstances, it defers to the relevant _SLOWLY |
| 655 | function, which can handle all situations. |
| 656 | */ |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 657 | static __inline__ void ac_helperc_ACCESS4 ( Addr a, Bool isWrite ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 658 | { |
| 659 | # ifdef VG_DEBUG_MEMORY |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 660 | return ac_ACCESS4_SLOWLY(a, isWrite); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 661 | # else |
| 662 | UInt sec_no = rotateRight16(a) & 0x3FFFF; |
njn | da2e36d | 2003-09-30 13:33:24 +0000 | [diff] [blame] | 663 | AcSecMap* sm = primary_map[sec_no]; |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 664 | UInt a_off = (a & 0xFFFF) >> 3; |
| 665 | UChar abits = sm->abits[a_off]; |
| 666 | abits >>= (a & 4); |
| 667 | abits &= 15; |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 668 | PROF_EVENT(66); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 669 | if (abits == VGM_NIBBLE_VALID) { |
| 670 | /* Handle common case quickly: a is suitably aligned, is mapped, |
| 671 | and is addressible. So just return. */ |
| 672 | return; |
| 673 | } else { |
| 674 | /* Slow but general case. */ |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 675 | ac_ACCESS4_SLOWLY(a, isWrite); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 676 | } |
| 677 | # endif |
| 678 | } |
| 679 | |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 680 | static __inline__ void ac_helperc_ACCESS2 ( Addr a, Bool isWrite ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 681 | { |
| 682 | # ifdef VG_DEBUG_MEMORY |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 683 | return ac_ACCESS2_SLOWLY(a, isWrite); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 684 | # else |
| 685 | UInt sec_no = rotateRight16(a) & 0x1FFFF; |
| 686 | AcSecMap* sm = primary_map[sec_no]; |
| 687 | UInt a_off = (a & 0xFFFF) >> 3; |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 688 | PROF_EVENT(67); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 689 | if (sm->abits[a_off] == VGM_BYTE_VALID) { |
| 690 | /* Handle common case quickly. */ |
| 691 | return; |
| 692 | } else { |
| 693 | /* Slow but general case. */ |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 694 | ac_ACCESS2_SLOWLY(a, isWrite); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 695 | } |
| 696 | # endif |
| 697 | } |
| 698 | |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 699 | static __inline__ void ac_helperc_ACCESS1 ( Addr a, Bool isWrite ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 700 | { |
| 701 | # ifdef VG_DEBUG_MEMORY |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 702 | return ac_ACCESS1_SLOWLY(a, isWrite); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 703 | # else |
| 704 | UInt sec_no = shiftRight16(a); |
| 705 | AcSecMap* sm = primary_map[sec_no]; |
| 706 | UInt a_off = (a & 0xFFFF) >> 3; |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 707 | PROF_EVENT(68); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 708 | if (sm->abits[a_off] == VGM_BYTE_VALID) { |
| 709 | /* Handle common case quickly. */ |
| 710 | return; |
| 711 | } else { |
| 712 | /* Slow but general case. */ |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 713 | ac_ACCESS1_SLOWLY(a, isWrite); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 714 | } |
| 715 | # endif |
| 716 | } |
| 717 | |
nethercote | eec4630 | 2004-08-23 15:06:23 +0000 | [diff] [blame] | 718 | REGPARM(1) |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 719 | static void ac_helperc_LOAD4 ( Addr a ) |
| 720 | { |
| 721 | ac_helperc_ACCESS4 ( a, /*isWrite*/False ); |
| 722 | } |
nethercote | eec4630 | 2004-08-23 15:06:23 +0000 | [diff] [blame] | 723 | REGPARM(1) |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 724 | static void ac_helperc_STORE4 ( Addr a ) |
| 725 | { |
| 726 | ac_helperc_ACCESS4 ( a, /*isWrite*/True ); |
| 727 | } |
| 728 | |
nethercote | eec4630 | 2004-08-23 15:06:23 +0000 | [diff] [blame] | 729 | REGPARM(1) |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 730 | static void ac_helperc_LOAD2 ( Addr a ) |
| 731 | { |
| 732 | ac_helperc_ACCESS2 ( a, /*isWrite*/False ); |
| 733 | } |
nethercote | eec4630 | 2004-08-23 15:06:23 +0000 | [diff] [blame] | 734 | REGPARM(1) |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 735 | static void ac_helperc_STORE2 ( Addr a ) |
| 736 | { |
| 737 | ac_helperc_ACCESS2 ( a, /*isWrite*/True ); |
| 738 | } |
| 739 | |
nethercote | eec4630 | 2004-08-23 15:06:23 +0000 | [diff] [blame] | 740 | REGPARM(1) |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 741 | static void ac_helperc_LOAD1 ( Addr a ) |
| 742 | { |
| 743 | ac_helperc_ACCESS1 ( a, /*isWrite*/False ); |
| 744 | } |
nethercote | eec4630 | 2004-08-23 15:06:23 +0000 | [diff] [blame] | 745 | REGPARM(1) |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 746 | static void ac_helperc_STORE1 ( Addr a ) |
| 747 | { |
| 748 | ac_helperc_ACCESS1 ( a, /*isWrite*/True ); |
| 749 | } |
| 750 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 751 | |
| 752 | /*------------------------------------------------------------*/ |
| 753 | /*--- Fallback functions to handle cases that the above ---*/ |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 754 | /*--- ac_helperc_ACCESS{1,2,4} can't manage. ---*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 755 | /*------------------------------------------------------------*/ |
| 756 | |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 757 | static void ac_ACCESS4_SLOWLY ( Addr a, Bool isWrite ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 758 | { |
| 759 | Bool a0ok, a1ok, a2ok, a3ok; |
| 760 | |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 761 | PROF_EVENT(76); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 762 | |
| 763 | /* First establish independently the addressibility of the 4 bytes |
| 764 | involved. */ |
| 765 | a0ok = get_abit(a+0) == VGM_BIT_VALID; |
| 766 | a1ok = get_abit(a+1) == VGM_BIT_VALID; |
| 767 | a2ok = get_abit(a+2) == VGM_BIT_VALID; |
| 768 | a3ok = get_abit(a+3) == VGM_BIT_VALID; |
| 769 | |
| 770 | /* Now distinguish 3 cases */ |
| 771 | |
| 772 | /* Case 1: the address is completely valid, so: |
| 773 | - no addressing error |
| 774 | */ |
| 775 | if (a0ok && a1ok && a2ok && a3ok) { |
| 776 | return; |
| 777 | } |
| 778 | |
| 779 | /* Case 2: the address is completely invalid. |
| 780 | - emit addressing error |
| 781 | */ |
| 782 | /* VG_(printf)("%p (%d %d %d %d)\n", a, a0ok, a1ok, a2ok, a3ok); */ |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 783 | if (!MAC_(clo_partial_loads_ok) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 784 | || ((a & 3) != 0) |
| 785 | || (!a0ok && !a1ok && !a2ok && !a3ok)) { |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 786 | MAC_(record_address_error)( VG_(get_current_tid)(), a, 4, isWrite ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 787 | return; |
| 788 | } |
| 789 | |
| 790 | /* Case 3: the address is partially valid. |
| 791 | - no addressing error |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 792 | Case 3 is only allowed if MAC_(clo_partial_loads_ok) is True |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 793 | (which is the default), and the address is 4-aligned. |
| 794 | If not, Case 2 will have applied. |
| 795 | */ |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 796 | sk_assert(MAC_(clo_partial_loads_ok)); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 797 | { |
| 798 | return; |
| 799 | } |
| 800 | } |
| 801 | |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 802 | static void ac_ACCESS2_SLOWLY ( Addr a, Bool isWrite ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 803 | { |
| 804 | /* Check the address for validity. */ |
| 805 | Bool aerr = False; |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 806 | PROF_EVENT(77); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 807 | |
| 808 | if (get_abit(a+0) != VGM_BIT_VALID) aerr = True; |
| 809 | if (get_abit(a+1) != VGM_BIT_VALID) aerr = True; |
| 810 | |
| 811 | /* If an address error has happened, report it. */ |
| 812 | if (aerr) { |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 813 | MAC_(record_address_error)( VG_(get_current_tid)(), a, 2, isWrite ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 814 | } |
| 815 | } |
| 816 | |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 817 | static void ac_ACCESS1_SLOWLY ( Addr a, Bool isWrite) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 818 | { |
| 819 | /* Check the address for validity. */ |
| 820 | Bool aerr = False; |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 821 | PROF_EVENT(78); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 822 | |
| 823 | if (get_abit(a+0) != VGM_BIT_VALID) aerr = True; |
| 824 | |
| 825 | /* If an address error has happened, report it. */ |
| 826 | if (aerr) { |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 827 | MAC_(record_address_error)( VG_(get_current_tid)(), a, 1, isWrite ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 828 | } |
| 829 | } |
| 830 | |
| 831 | |
| 832 | /* --------------------------------------------------------------------- |
| 833 | FPU load and store checks, called from generated code. |
| 834 | ------------------------------------------------------------------ */ |
| 835 | |
sewardj | 5686735 | 2003-10-12 10:27:06 +0000 | [diff] [blame] | 836 | static |
nethercote | 928a5f7 | 2004-11-03 18:10:37 +0000 | [diff] [blame] | 837 | void ac_fpu_ACCESS_check ( Addr addr, SizeT size, Bool isWrite ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 838 | { |
| 839 | /* Ensure the read area is both addressible and valid (ie, |
| 840 | readable). If there's an address error, don't report a value |
| 841 | error too; but if there isn't an address error, check for a |
| 842 | value error. |
| 843 | |
| 844 | Try to be reasonably fast on the common case; wimp out and defer |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 845 | to ac_fpu_ACCESS_check_SLOWLY for everything else. */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 846 | |
| 847 | AcSecMap* sm; |
| 848 | UInt sm_off, a_off; |
| 849 | Addr addr4; |
| 850 | |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 851 | PROF_EVENT(90); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 852 | |
| 853 | # ifdef VG_DEBUG_MEMORY |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 854 | ac_fpu_ACCESS_check_SLOWLY ( addr, size, isWrite ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 855 | # else |
| 856 | |
| 857 | if (size == 4) { |
| 858 | if (!IS_ALIGNED4_ADDR(addr)) goto slow4; |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 859 | PROF_EVENT(91); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 860 | /* Properly aligned. */ |
| 861 | sm = primary_map[addr >> 16]; |
| 862 | sm_off = addr & 0xFFFF; |
| 863 | a_off = sm_off >> 3; |
| 864 | if (sm->abits[a_off] != VGM_BYTE_VALID) goto slow4; |
| 865 | /* Properly aligned and addressible. */ |
| 866 | return; |
| 867 | slow4: |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 868 | ac_fpu_ACCESS_check_SLOWLY ( addr, 4, isWrite ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 869 | return; |
| 870 | } |
| 871 | |
| 872 | if (size == 8) { |
| 873 | if (!IS_ALIGNED4_ADDR(addr)) goto slow8; |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 874 | PROF_EVENT(92); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 875 | /* Properly aligned. Do it in two halves. */ |
| 876 | addr4 = addr + 4; |
| 877 | /* First half. */ |
| 878 | sm = primary_map[addr >> 16]; |
| 879 | sm_off = addr & 0xFFFF; |
| 880 | a_off = sm_off >> 3; |
| 881 | if (sm->abits[a_off] != VGM_BYTE_VALID) goto slow8; |
| 882 | /* First half properly aligned and addressible. */ |
| 883 | /* Second half. */ |
| 884 | sm = primary_map[addr4 >> 16]; |
| 885 | sm_off = addr4 & 0xFFFF; |
| 886 | a_off = sm_off >> 3; |
| 887 | if (sm->abits[a_off] != VGM_BYTE_VALID) goto slow8; |
| 888 | /* Second half properly aligned and addressible. */ |
| 889 | /* Both halves properly aligned and addressible. */ |
| 890 | return; |
| 891 | slow8: |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 892 | ac_fpu_ACCESS_check_SLOWLY ( addr, 8, isWrite ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 893 | return; |
| 894 | } |
| 895 | |
| 896 | /* Can't be bothered to huff'n'puff to make these (allegedly) rare |
| 897 | cases go quickly. */ |
| 898 | if (size == 2) { |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 899 | PROF_EVENT(93); |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 900 | ac_fpu_ACCESS_check_SLOWLY ( addr, 2, isWrite ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 901 | return; |
| 902 | } |
| 903 | |
jseward | fca6018 | 2004-01-04 23:30:55 +0000 | [diff] [blame] | 904 | if (size == 16 || size == 10 || size == 28 || size == 108 || size == 512) { |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 905 | PROF_EVENT(94); |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 906 | ac_fpu_ACCESS_check_SLOWLY ( addr, size, isWrite ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 907 | return; |
| 908 | } |
| 909 | |
| 910 | VG_(printf)("size is %d\n", size); |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 911 | VG_(skin_panic)("fpu_ACCESS_check: unhandled size"); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 912 | # endif |
| 913 | } |
| 914 | |
nethercote | eec4630 | 2004-08-23 15:06:23 +0000 | [diff] [blame] | 915 | REGPARM(2) |
nethercote | 928a5f7 | 2004-11-03 18:10:37 +0000 | [diff] [blame] | 916 | static void ac_fpu_READ_check ( Addr addr, SizeT size ) |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 917 | { |
| 918 | ac_fpu_ACCESS_check ( addr, size, /*isWrite*/False ); |
| 919 | } |
| 920 | |
nethercote | eec4630 | 2004-08-23 15:06:23 +0000 | [diff] [blame] | 921 | REGPARM(2) |
nethercote | 928a5f7 | 2004-11-03 18:10:37 +0000 | [diff] [blame] | 922 | static void ac_fpu_WRITE_check ( Addr addr, SizeT size ) |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 923 | { |
| 924 | ac_fpu_ACCESS_check ( addr, size, /*isWrite*/True ); |
| 925 | } |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 926 | |
| 927 | /* --------------------------------------------------------------------- |
| 928 | Slow, general cases for FPU access checks. |
| 929 | ------------------------------------------------------------------ */ |
| 930 | |
nethercote | 928a5f7 | 2004-11-03 18:10:37 +0000 | [diff] [blame] | 931 | void ac_fpu_ACCESS_check_SLOWLY ( Addr addr, SizeT size, Bool isWrite ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 932 | { |
| 933 | Int i; |
| 934 | Bool aerr = False; |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 935 | PROF_EVENT(100); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 936 | for (i = 0; i < size; i++) { |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 937 | PROF_EVENT(101); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 938 | if (get_abit(addr+i) != VGM_BIT_VALID) |
| 939 | aerr = True; |
| 940 | } |
| 941 | |
| 942 | if (aerr) { |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 943 | MAC_(record_address_error)( VG_(get_current_tid)(), addr, size, isWrite ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 944 | } |
| 945 | } |
| 946 | |
| 947 | |
| 948 | /*------------------------------------------------------------*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 949 | /*--- Our instrumenter ---*/ |
| 950 | /*------------------------------------------------------------*/ |
| 951 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 952 | UCodeBlock* SK_(instrument)(UCodeBlock* cb_in, Addr orig_addr) |
| 953 | { |
| 954 | /* Use this rather than eg. -1 because it's a UInt. */ |
| 955 | #define INVALID_DATA_SIZE 999999 |
| 956 | |
| 957 | UCodeBlock* cb; |
| 958 | Int i; |
| 959 | UInstr* u_in; |
| 960 | Int t_addr, t_size; |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 961 | Addr helper; |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 962 | |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 963 | cb = VG_(setup_UCodeBlock)(cb_in); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 964 | |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 965 | for (i = 0; i < VG_(get_num_instrs)(cb_in); i++) { |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 966 | |
| 967 | t_addr = t_size = INVALID_TEMPREG; |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 968 | u_in = VG_(get_instr)(cb_in, i); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 969 | |
| 970 | switch (u_in->opcode) { |
sewardj | 7a5ebcf | 2002-11-13 22:42:13 +0000 | [diff] [blame] | 971 | case NOP: case LOCK: case CALLM_E: case CALLM_S: |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 972 | break; |
| 973 | |
sewardj | 77d30a2 | 2003-10-19 08:18:52 +0000 | [diff] [blame] | 974 | /* For memory-ref instrs, copy the data_addr into a temporary |
| 975 | * to be passed to the helper at the end of the instruction. |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 976 | */ |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 977 | case LOAD: |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 978 | switch (u_in->size) { |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 979 | case 4: helper = (Addr)ac_helperc_LOAD4; break; |
| 980 | case 2: helper = (Addr)ac_helperc_LOAD2; break; |
| 981 | case 1: helper = (Addr)ac_helperc_LOAD1; break; |
sewardj | 77d30a2 | 2003-10-19 08:18:52 +0000 | [diff] [blame] | 982 | default: VG_(skin_panic) |
| 983 | ("addrcheck::SK_(instrument):LOAD"); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 984 | } |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 985 | uInstr1(cb, CCALL, 0, TempReg, u_in->val1); |
| 986 | uCCall (cb, helper, 1, 1, False ); |
| 987 | VG_(copy_UInstr)(cb, u_in); |
| 988 | break; |
| 989 | |
| 990 | case STORE: |
| 991 | switch (u_in->size) { |
| 992 | case 4: helper = (Addr)ac_helperc_STORE4; break; |
| 993 | case 2: helper = (Addr)ac_helperc_STORE2; break; |
| 994 | case 1: helper = (Addr)ac_helperc_STORE1; break; |
sewardj | 77d30a2 | 2003-10-19 08:18:52 +0000 | [diff] [blame] | 995 | default: VG_(skin_panic) |
| 996 | ("addrcheck::SK_(instrument):STORE"); |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 997 | } |
| 998 | uInstr1(cb, CCALL, 0, TempReg, u_in->val2); |
| 999 | uCCall (cb, helper, 1, 1, False ); |
njn | 4ba5a79 | 2002-09-30 10:23:54 +0000 | [diff] [blame] | 1000 | VG_(copy_UInstr)(cb, u_in); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1001 | break; |
| 1002 | |
sewardj | e3891fa | 2003-06-15 03:13:48 +0000 | [diff] [blame] | 1003 | case SSE3ag_MemRd_RegWr: |
| 1004 | sk_assert(u_in->size == 4 || u_in->size == 8); |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1005 | helper = (Addr)ac_fpu_READ_check; |
sewardj | e3891fa | 2003-06-15 03:13:48 +0000 | [diff] [blame] | 1006 | goto do_Access_ARG1; |
| 1007 | do_Access_ARG1: |
| 1008 | sk_assert(u_in->tag1 == TempReg); |
| 1009 | t_addr = u_in->val1; |
| 1010 | t_size = newTemp(cb); |
| 1011 | uInstr2(cb, MOV, 4, Literal, 0, TempReg, t_size); |
| 1012 | uLiteral(cb, u_in->size); |
| 1013 | uInstr2(cb, CCALL, 0, TempReg, t_addr, TempReg, t_size); |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1014 | uCCall(cb, helper, 2, 2, False ); |
sewardj | e3891fa | 2003-06-15 03:13:48 +0000 | [diff] [blame] | 1015 | VG_(copy_UInstr)(cb, u_in); |
| 1016 | break; |
| 1017 | |
sewardj | 3d7c9c8 | 2003-03-26 21:08:13 +0000 | [diff] [blame] | 1018 | case MMX2_MemRd: |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1019 | sk_assert(u_in->size == 4 || u_in->size == 8); |
| 1020 | helper = (Addr)ac_fpu_READ_check; |
| 1021 | goto do_Access_ARG2; |
sewardj | 3d7c9c8 | 2003-03-26 21:08:13 +0000 | [diff] [blame] | 1022 | case MMX2_MemWr: |
sewardj | d797101 | 2003-04-04 00:21:58 +0000 | [diff] [blame] | 1023 | sk_assert(u_in->size == 4 || u_in->size == 8); |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1024 | helper = (Addr)ac_fpu_WRITE_check; |
sewardj | 1863abc | 2003-06-14 16:01:32 +0000 | [diff] [blame] | 1025 | goto do_Access_ARG2; |
| 1026 | case FPU_R: |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1027 | helper = (Addr)ac_fpu_READ_check; |
| 1028 | goto do_Access_ARG2; |
sewardj | 1863abc | 2003-06-14 16:01:32 +0000 | [diff] [blame] | 1029 | case FPU_W: |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1030 | helper = (Addr)ac_fpu_WRITE_check; |
sewardj | 1863abc | 2003-06-14 16:01:32 +0000 | [diff] [blame] | 1031 | goto do_Access_ARG2; |
| 1032 | do_Access_ARG2: |
| 1033 | sk_assert(u_in->tag2 == TempReg); |
sewardj | 3d7c9c8 | 2003-03-26 21:08:13 +0000 | [diff] [blame] | 1034 | t_addr = u_in->val2; |
| 1035 | t_size = newTemp(cb); |
| 1036 | uInstr2(cb, MOV, 4, Literal, 0, TempReg, t_size); |
sewardj | d797101 | 2003-04-04 00:21:58 +0000 | [diff] [blame] | 1037 | uLiteral(cb, u_in->size); |
sewardj | 3d7c9c8 | 2003-03-26 21:08:13 +0000 | [diff] [blame] | 1038 | uInstr2(cb, CCALL, 0, TempReg, t_addr, TempReg, t_size); |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1039 | uCCall(cb, helper, 2, 2, False ); |
sewardj | 3d7c9c8 | 2003-03-26 21:08:13 +0000 | [diff] [blame] | 1040 | VG_(copy_UInstr)(cb, u_in); |
| 1041 | break; |
| 1042 | |
nethercote | 42d9cd1 | 2004-04-20 10:07:44 +0000 | [diff] [blame] | 1043 | case MMX2a1_MemRd: |
sewardj | 77d30a2 | 2003-10-19 08:18:52 +0000 | [diff] [blame] | 1044 | case SSE3a_MemRd: |
sewardj | 1863abc | 2003-06-14 16:01:32 +0000 | [diff] [blame] | 1045 | case SSE2a_MemRd: |
nethercote | b1affa8 | 2004-01-19 19:14:18 +0000 | [diff] [blame] | 1046 | case SSE3a1_MemRd: |
| 1047 | case SSE2a1_MemRd: |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1048 | helper = (Addr)ac_fpu_READ_check; |
| 1049 | goto do_Access_ARG3; |
sewardj | 1863abc | 2003-06-14 16:01:32 +0000 | [diff] [blame] | 1050 | case SSE2a_MemWr: |
| 1051 | case SSE3a_MemWr: |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1052 | helper = (Addr)ac_fpu_WRITE_check; |
sewardj | 1863abc | 2003-06-14 16:01:32 +0000 | [diff] [blame] | 1053 | goto do_Access_ARG3; |
| 1054 | do_Access_ARG3: |
jseward | fca6018 | 2004-01-04 23:30:55 +0000 | [diff] [blame] | 1055 | sk_assert(u_in->size == 4 || u_in->size == 8 |
| 1056 | || u_in->size == 16 || u_in->size == 512); |
sewardj | 1863abc | 2003-06-14 16:01:32 +0000 | [diff] [blame] | 1057 | sk_assert(u_in->tag3 == TempReg); |
| 1058 | t_addr = u_in->val3; |
| 1059 | t_size = newTemp(cb); |
| 1060 | uInstr2(cb, MOV, 4, Literal, 0, TempReg, t_size); |
| 1061 | uLiteral(cb, u_in->size); |
| 1062 | uInstr2(cb, CCALL, 0, TempReg, t_addr, TempReg, t_size); |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1063 | uCCall(cb, helper, 2, 2, False ); |
sewardj | 1863abc | 2003-06-14 16:01:32 +0000 | [diff] [blame] | 1064 | VG_(copy_UInstr)(cb, u_in); |
| 1065 | break; |
| 1066 | |
sewardj | 095c3bc | 2003-06-15 23:26:04 +0000 | [diff] [blame] | 1067 | case SSE3e1_RegRd: |
sewardj | abf8bf8 | 2003-06-15 22:28:05 +0000 | [diff] [blame] | 1068 | case SSE3e_RegWr: |
sewardj | e3891fa | 2003-06-15 03:13:48 +0000 | [diff] [blame] | 1069 | case SSE3g1_RegWr: |
sewardj | 6bc4055 | 2003-06-15 01:40:58 +0000 | [diff] [blame] | 1070 | case SSE5: |
sewardj | 1863abc | 2003-06-14 16:01:32 +0000 | [diff] [blame] | 1071 | case SSE3g_RegWr: |
sewardj | 4fbe6e9 | 2003-06-15 21:54:34 +0000 | [diff] [blame] | 1072 | case SSE3e_RegRd: |
sewardj | 1863abc | 2003-06-14 16:01:32 +0000 | [diff] [blame] | 1073 | case SSE4: |
sewardj | 77d30a2 | 2003-10-19 08:18:52 +0000 | [diff] [blame] | 1074 | case SSE3: |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1075 | default: |
njn | 4ba5a79 | 2002-09-30 10:23:54 +0000 | [diff] [blame] | 1076 | VG_(copy_UInstr)(cb, u_in); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1077 | break; |
| 1078 | } |
| 1079 | } |
| 1080 | |
njn | 4ba5a79 | 2002-09-30 10:23:54 +0000 | [diff] [blame] | 1081 | VG_(free_UCodeBlock)(cb_in); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1082 | return cb; |
| 1083 | } |
| 1084 | |
| 1085 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1086 | /*------------------------------------------------------------*/ |
| 1087 | /*--- Detecting leaked (unreachable) malloc'd blocks. ---*/ |
| 1088 | /*------------------------------------------------------------*/ |
| 1089 | |
sewardj | a449568 | 2002-10-21 07:29:59 +0000 | [diff] [blame] | 1090 | /* For the memory leak detector, say whether an entire 64k chunk of |
| 1091 | address space is possibly in use, or not. If in doubt return |
| 1092 | True. |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1093 | */ |
sewardj | a449568 | 2002-10-21 07:29:59 +0000 | [diff] [blame] | 1094 | static |
| 1095 | Bool ac_is_valid_64k_chunk ( UInt chunk_number ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1096 | { |
sewardj | a449568 | 2002-10-21 07:29:59 +0000 | [diff] [blame] | 1097 | sk_assert(chunk_number >= 0 && chunk_number < 65536); |
| 1098 | if (IS_DISTINGUISHED_SM(primary_map[chunk_number])) { |
| 1099 | /* Definitely not in use. */ |
| 1100 | return False; |
| 1101 | } else { |
| 1102 | return True; |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1103 | } |
| 1104 | } |
| 1105 | |
| 1106 | |
sewardj | a449568 | 2002-10-21 07:29:59 +0000 | [diff] [blame] | 1107 | /* For the memory leak detector, say whether or not a given word |
| 1108 | address is to be regarded as valid. */ |
| 1109 | static |
| 1110 | Bool ac_is_valid_address ( Addr a ) |
| 1111 | { |
| 1112 | UChar abits; |
| 1113 | sk_assert(IS_ALIGNED4_ADDR(a)); |
| 1114 | abits = get_abits4_ALIGNED(a); |
| 1115 | if (abits == VGM_NIBBLE_VALID) { |
| 1116 | return True; |
| 1117 | } else { |
| 1118 | return False; |
| 1119 | } |
| 1120 | } |
| 1121 | |
| 1122 | |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 1123 | /* Leak detector for this tool. We don't actually do anything, merely |
sewardj | a449568 | 2002-10-21 07:29:59 +0000 | [diff] [blame] | 1124 | run the generic leak detector with suitable parameters for this |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 1125 | tool. */ |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 1126 | static void ac_detect_memory_leaks ( void ) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1127 | { |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 1128 | MAC_(do_detect_memory_leaks) ( ac_is_valid_64k_chunk, ac_is_valid_address ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1129 | } |
| 1130 | |
| 1131 | |
| 1132 | /* --------------------------------------------------------------------- |
| 1133 | Sanity check machinery (permanently engaged). |
| 1134 | ------------------------------------------------------------------ */ |
| 1135 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1136 | Bool SK_(cheap_sanity_check) ( void ) |
| 1137 | { |
jseward | 9800fd3 | 2004-01-04 23:08:04 +0000 | [diff] [blame] | 1138 | /* nothing useful we can rapidly check */ |
| 1139 | return True; |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1140 | } |
| 1141 | |
| 1142 | Bool SK_(expensive_sanity_check) ( void ) |
| 1143 | { |
| 1144 | Int i; |
| 1145 | |
| 1146 | /* Make sure nobody changed the distinguished secondary. */ |
| 1147 | for (i = 0; i < 8192; i++) |
| 1148 | if (distinguished_secondary_map.abits[i] != VGM_BYTE_INVALID) |
| 1149 | return False; |
| 1150 | |
| 1151 | /* Make sure that the upper 3/4 of the primary map hasn't |
| 1152 | been messed with. */ |
| 1153 | for (i = 65536; i < 262144; i++) |
| 1154 | if (primary_map[i] != & distinguished_secondary_map) |
| 1155 | return False; |
| 1156 | |
| 1157 | return True; |
| 1158 | } |
| 1159 | |
njn | 47363ab | 2003-04-21 13:24:40 +0000 | [diff] [blame] | 1160 | /*------------------------------------------------------------*/ |
| 1161 | /*--- Client requests ---*/ |
| 1162 | /*------------------------------------------------------------*/ |
| 1163 | |
nethercote | d1b64b2 | 2004-11-04 18:22:28 +0000 | [diff] [blame] | 1164 | Bool SK_(handle_client_request) ( ThreadId tid, UWord* arg, UWord *ret ) |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1165 | { |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1166 | #define IGNORE(what) \ |
| 1167 | do { \ |
| 1168 | if (moans-- > 0) { \ |
| 1169 | VG_(message)(Vg_UserMsg, \ |
| 1170 | "Warning: Addrcheck: ignoring `%s' request.", what); \ |
| 1171 | VG_(message)(Vg_UserMsg, \ |
nethercote | 137bc55 | 2003-11-14 17:47:54 +0000 | [diff] [blame] | 1172 | " To honour this request, rerun with --tool=memcheck."); \ |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1173 | } \ |
| 1174 | } while (0) |
| 1175 | |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1176 | static Int moans = 3; |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1177 | |
| 1178 | /* Overload memcheck client reqs */ |
njn | d799418 | 2003-10-02 13:44:04 +0000 | [diff] [blame] | 1179 | if (!VG_IS_SKIN_USERREQ('M','C',arg[0]) |
| 1180 | && VG_USERREQ__MALLOCLIKE_BLOCK != arg[0] |
rjwalsh | bc0bb83 | 2004-06-19 18:12:36 +0000 | [diff] [blame] | 1181 | && VG_USERREQ__FREELIKE_BLOCK != arg[0] |
| 1182 | && VG_USERREQ__CREATE_MEMPOOL != arg[0] |
| 1183 | && VG_USERREQ__DESTROY_MEMPOOL != arg[0] |
| 1184 | && VG_USERREQ__MEMPOOL_ALLOC != arg[0] |
| 1185 | && VG_USERREQ__MEMPOOL_FREE != arg[0]) |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1186 | return False; |
| 1187 | |
| 1188 | switch (arg[0]) { |
| 1189 | case VG_USERREQ__DO_LEAK_CHECK: |
| 1190 | ac_detect_memory_leaks(); |
| 1191 | *ret = 0; /* return value is meaningless */ |
| 1192 | break; |
| 1193 | |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1194 | /* Ignore these */ |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1195 | case VG_USERREQ__CHECK_WRITABLE: /* check writable */ |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1196 | IGNORE("VALGRIND_CHECK_WRITABLE"); |
| 1197 | return False; |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1198 | case VG_USERREQ__CHECK_READABLE: /* check readable */ |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1199 | IGNORE("VALGRIND_CHECK_READABLE"); |
| 1200 | return False; |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1201 | case VG_USERREQ__MAKE_NOACCESS: /* make no access */ |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1202 | IGNORE("VALGRIND_MAKE_NOACCESS"); |
| 1203 | return False; |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1204 | case VG_USERREQ__MAKE_WRITABLE: /* make writable */ |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1205 | IGNORE("VALGRIND_MAKE_WRITABLE"); |
| 1206 | return False; |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1207 | case VG_USERREQ__MAKE_READABLE: /* make readable */ |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1208 | IGNORE("VALGRIND_MAKE_READABLE"); |
| 1209 | return False; |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1210 | case VG_USERREQ__DISCARD: /* discard */ |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1211 | IGNORE("VALGRIND_CHECK_DISCARD"); |
| 1212 | return False; |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1213 | |
| 1214 | default: |
nethercote | d1b64b2 | 2004-11-04 18:22:28 +0000 | [diff] [blame] | 1215 | if (MAC_(handle_common_client_requests)(tid, arg, ret )) { |
njn | 47363ab | 2003-04-21 13:24:40 +0000 | [diff] [blame] | 1216 | return True; |
| 1217 | } else { |
| 1218 | VG_(message)(Vg_UserMsg, |
nethercote | d1b64b2 | 2004-11-04 18:22:28 +0000 | [diff] [blame] | 1219 | "Warning: unknown addrcheck client request code %llx", |
| 1220 | (ULong)arg[0]); |
njn | 47363ab | 2003-04-21 13:24:40 +0000 | [diff] [blame] | 1221 | return False; |
| 1222 | } |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1223 | } |
| 1224 | return True; |
sewardj | bf310d9 | 2002-12-28 13:09:57 +0000 | [diff] [blame] | 1225 | |
| 1226 | #undef IGNORE |
sewardj | d8033d9 | 2002-12-08 22:16:58 +0000 | [diff] [blame] | 1227 | } |
| 1228 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1229 | /*------------------------------------------------------------*/ |
| 1230 | /*--- Setup ---*/ |
| 1231 | /*------------------------------------------------------------*/ |
| 1232 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1233 | Bool SK_(process_cmd_line_option)(Char* arg) |
| 1234 | { |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 1235 | return MAC_(process_common_cmd_line_option)(arg); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1236 | } |
| 1237 | |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 1238 | void SK_(print_usage)(void) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1239 | { |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 1240 | MAC_(print_common_usage)(); |
| 1241 | } |
| 1242 | |
| 1243 | void SK_(print_debug_usage)(void) |
| 1244 | { |
| 1245 | MAC_(print_common_debug_usage)(); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1246 | } |
| 1247 | |
| 1248 | |
| 1249 | /*------------------------------------------------------------*/ |
| 1250 | /*--- Setup ---*/ |
| 1251 | /*------------------------------------------------------------*/ |
| 1252 | |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 1253 | void SK_(pre_clo_init)(void) |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1254 | { |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 1255 | VG_(details_name) ("Addrcheck"); |
| 1256 | VG_(details_version) (NULL); |
| 1257 | VG_(details_description) ("a fine-grained address checker"); |
| 1258 | VG_(details_copyright_author)( |
nethercote | 08fa9a7 | 2004-07-16 17:44:00 +0000 | [diff] [blame] | 1259 | "Copyright (C) 2002-2004, and GNU GPL'd, by Julian Seward et al."); |
nethercote | 421281e | 2003-11-20 16:20:55 +0000 | [diff] [blame] | 1260 | VG_(details_bug_reports_to) (VG_BUGS_TO); |
sewardj | 78210aa | 2002-12-01 02:55:46 +0000 | [diff] [blame] | 1261 | VG_(details_avg_translation_sizeB) ( 135 ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1262 | |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 1263 | VG_(needs_core_errors) (); |
njn | 95ec870 | 2004-11-22 16:46:13 +0000 | [diff] [blame^] | 1264 | VG_(needs_tool_errors) (); |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 1265 | VG_(needs_libc_freeres) (); |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 1266 | VG_(needs_command_line_options)(); |
| 1267 | VG_(needs_client_requests) (); |
| 1268 | VG_(needs_syscall_wrapper) (); |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 1269 | VG_(needs_sanity_checks) (); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1270 | VG_(needs_shadow_memory) (); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1271 | |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 1272 | MAC_( new_mem_heap) = & ac_new_mem_heap; |
| 1273 | MAC_( ban_mem_heap) = & ac_make_noaccess; |
| 1274 | MAC_(copy_mem_heap) = & ac_copy_address_range_state; |
| 1275 | MAC_( die_mem_heap) = & ac_make_noaccess; |
sewardj | ecf8e10 | 2003-07-12 12:11:39 +0000 | [diff] [blame] | 1276 | MAC_(check_noaccess) = & ac_check_noaccess; |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 1277 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1278 | VG_(init_new_mem_startup) ( & ac_new_mem_startup ); |
| 1279 | VG_(init_new_mem_stack_signal) ( & ac_make_accessible ); |
| 1280 | VG_(init_new_mem_brk) ( & ac_make_accessible ); |
| 1281 | VG_(init_new_mem_mmap) ( & ac_set_perms ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1282 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1283 | VG_(init_copy_mem_remap) ( & ac_copy_address_range_state ); |
| 1284 | VG_(init_change_mem_mprotect) ( & ac_set_perms ); |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 1285 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1286 | VG_(init_die_mem_stack_signal) ( & ac_make_noaccess ); |
| 1287 | VG_(init_die_mem_brk) ( & ac_make_noaccess ); |
| 1288 | VG_(init_die_mem_munmap) ( & ac_make_noaccess ); |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 1289 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1290 | VG_(init_new_mem_stack_4) ( & MAC_(new_mem_stack_4) ); |
| 1291 | VG_(init_new_mem_stack_8) ( & MAC_(new_mem_stack_8) ); |
| 1292 | VG_(init_new_mem_stack_12) ( & MAC_(new_mem_stack_12) ); |
| 1293 | VG_(init_new_mem_stack_16) ( & MAC_(new_mem_stack_16) ); |
| 1294 | VG_(init_new_mem_stack_32) ( & MAC_(new_mem_stack_32) ); |
| 1295 | VG_(init_new_mem_stack) ( & MAC_(new_mem_stack) ); |
njn | 9b007f6 | 2003-04-07 14:40:25 +0000 | [diff] [blame] | 1296 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1297 | VG_(init_die_mem_stack_4) ( & MAC_(die_mem_stack_4) ); |
| 1298 | VG_(init_die_mem_stack_8) ( & MAC_(die_mem_stack_8) ); |
| 1299 | VG_(init_die_mem_stack_12) ( & MAC_(die_mem_stack_12) ); |
| 1300 | VG_(init_die_mem_stack_16) ( & MAC_(die_mem_stack_16) ); |
| 1301 | VG_(init_die_mem_stack_32) ( & MAC_(die_mem_stack_32) ); |
| 1302 | VG_(init_die_mem_stack) ( & MAC_(die_mem_stack) ); |
njn | 9b007f6 | 2003-04-07 14:40:25 +0000 | [diff] [blame] | 1303 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1304 | VG_(init_ban_mem_stack) ( & ac_make_noaccess ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1305 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1306 | VG_(init_pre_mem_read) ( & ac_check_is_readable ); |
| 1307 | VG_(init_pre_mem_read_asciiz) ( & ac_check_is_readable_asciiz ); |
| 1308 | VG_(init_pre_mem_write) ( & ac_check_is_writable ); |
| 1309 | VG_(init_post_mem_write) ( & ac_make_accessible ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1310 | |
njn | c2699f6 | 2003-09-05 23:29:33 +0000 | [diff] [blame] | 1311 | VG_(register_compact_helper)((Addr) & ac_helperc_LOAD4); |
| 1312 | VG_(register_compact_helper)((Addr) & ac_helperc_LOAD2); |
| 1313 | VG_(register_compact_helper)((Addr) & ac_helperc_LOAD1); |
| 1314 | VG_(register_compact_helper)((Addr) & ac_helperc_STORE4); |
| 1315 | VG_(register_compact_helper)((Addr) & ac_helperc_STORE2); |
| 1316 | VG_(register_compact_helper)((Addr) & ac_helperc_STORE1); |
| 1317 | VG_(register_noncompact_helper)((Addr) & ac_fpu_READ_check); |
| 1318 | VG_(register_noncompact_helper)((Addr) & ac_fpu_WRITE_check); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1319 | |
| 1320 | VGP_(register_profile_event) ( VgpSetMem, "set-mem-perms" ); |
| 1321 | VGP_(register_profile_event) ( VgpCheckMem, "check-mem-perms" ); |
njn | 9b007f6 | 2003-04-07 14:40:25 +0000 | [diff] [blame] | 1322 | VGP_(register_profile_event) ( VgpESPAdj, "adjust-ESP" ); |
njn | d04b7c6 | 2002-10-03 14:05:52 +0000 | [diff] [blame] | 1323 | |
| 1324 | init_shadow_memory(); |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 1325 | MAC_(common_pre_clo_init)(); |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 1326 | } |
| 1327 | |
| 1328 | void SK_(post_clo_init) ( void ) |
| 1329 | { |
| 1330 | } |
| 1331 | |
njn | 7d9f94d | 2003-04-22 21:41:40 +0000 | [diff] [blame] | 1332 | void SK_(fini) ( Int exitcode ) |
njn | 5c004e4 | 2002-11-18 11:04:50 +0000 | [diff] [blame] | 1333 | { |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 1334 | MAC_(common_fini)( ac_detect_memory_leaks ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1335 | } |
| 1336 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1337 | VG_DETERMINE_INTERFACE_VERSION(SK_(pre_clo_init), 1./8) |
| 1338 | |
| 1339 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1340 | /*--------------------------------------------------------------------*/ |
njn25 | cac76cb | 2002-09-23 11:21:57 +0000 | [diff] [blame] | 1341 | /*--- end ac_main.c ---*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1342 | /*--------------------------------------------------------------------*/ |