1 2 /*--------------------------------------------------------------------*/ 3 /*--- Stuff relating to tool data structures. ---*/ 4 /*--- m_tooliface.c ---*/ 5 /*--------------------------------------------------------------------*/ 6 7 /* 8 This file is part of Valgrind, a dynamic binary instrumentation 9 framework. 10 11 Copyright (C) 2000-2015 Nicholas Nethercote 12 njn (at) valgrind.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 32 #include "pub_core_basics.h" 33 #include "pub_core_tooliface.h" 34 #include "pub_core_transtab.h" /* VG_(ok_to_discard_translations) */ 35 36 // The core/tool dictionary of functions (initially zeroed, as we want it) 37 VgToolInterface VG_(tdict); 38 39 /*--------------------------------------------------------------------*/ 40 /* Setting basic functions */ 41 42 void VG_(basic_tool_funcs)( 43 void(*post_clo_init)(void), 44 IRSB*(*instrument)(VgCallbackClosure*, IRSB*, 45 const VexGuestLayout*, const VexGuestExtents*, 46 const VexArchInfo*, IRType, IRType), 47 void(*fini)(Int) 48 ) 49 { 50 VG_(tdict).tool_post_clo_init = post_clo_init; 51 VG_(tdict).tool_instrument = instrument; 52 VG_(tdict).tool_fini = fini; 53 } 54 55 56 /*--------------------------------------------------------------------*/ 57 /* Setting details */ 58 59 /* Init with default values. */ 60 VgDetails VG_(details) = { 61 .name = NULL, 62 .version = NULL, 63 .description = NULL, 64 .copyright_author = NULL, 65 .bug_reports_to = NULL, 66 .avg_translation_sizeB = VG_DEFAULT_TRANS_SIZEB, 67 }; 68 69 /* Use macro because they're so repetitive */ 70 #define DETAILS(type, detail) \ 71 extern void VG_(details_##detail)(type detail) \ 72 { \ 73 VG_(details).detail = detail; \ 74 } 75 76 DETAILS(const HChar*, name) 77 DETAILS(const HChar*, version) 78 DETAILS(const HChar*, description) 79 DETAILS(const HChar*, copyright_author) 80 DETAILS(const HChar*, bug_reports_to) 81 DETAILS(UInt, avg_translation_sizeB) 82 83 84 /*--------------------------------------------------------------------*/ 85 /* Setting needs */ 86 87 VgNeeds VG_(needs) = { 88 .core_errors = False, 89 .tool_errors = False, 90 .libc_freeres = False, 91 .superblock_discards = False, 92 .command_line_options = False, 93 .client_requests = False, 94 .syscall_wrapper = False, 95 .sanity_checks = False, 96 .print_stats = False, 97 .info_location = False, 98 .var_info = False, 99 .malloc_replacement = False, 100 .xml_output = False, 101 .final_IR_tidy_pass = False 102 }; 103 104 /* static */ 105 Bool VG_(sanity_check_needs)(const HChar** failmsg) 106 { 107 Bool any_new_mem_stack_N, any_new_mem_stack_N_w_ECU; 108 Bool any_new_mem_stack_w_conflicting_otags; 109 Bool any_die_mem_stack_N; 110 111 #define CHECK_NOT(var, value) \ 112 if ((var)==(value)) { \ 113 *failmsg = "Tool error: '" #var "' not initialised\n"; \ 114 return False; \ 115 } 116 117 /* Ones that must be set */ 118 CHECK_NOT(VG_(details).name, NULL); 119 /* Nb: .version can be NULL */ 120 CHECK_NOT(VG_(details).description, NULL); 121 CHECK_NOT(VG_(details).copyright_author, NULL); 122 CHECK_NOT(VG_(details).bug_reports_to, NULL); 123 124 /* Check that new_mem_stack is defined if any new_mem_stack_N 125 are. */ 126 any_new_mem_stack_N 127 = VG_(tdict).track_new_mem_stack_4 || 128 VG_(tdict).track_new_mem_stack_8 || 129 VG_(tdict).track_new_mem_stack_12 || 130 VG_(tdict).track_new_mem_stack_16 || 131 VG_(tdict).track_new_mem_stack_32 || 132 VG_(tdict).track_new_mem_stack_112 || 133 VG_(tdict).track_new_mem_stack_128 || 134 VG_(tdict).track_new_mem_stack_144 || 135 VG_(tdict).track_new_mem_stack_160; 136 137 if (any_new_mem_stack_N && ! VG_(tdict).track_new_mem_stack) { 138 *failmsg = "Tool error: one of the specialised 'new_mem_stack_N'\n" 139 " events tracked, but not the generic 'new_mem_stack' one.\n" 140 " 'new_mem_stack' should be defined\n"; 141 return False; 142 } 143 144 /* Check that new_mem_stack_w_ECU is defined if any 145 new_mem_stack_N_w_ECU are. */ 146 any_new_mem_stack_N_w_ECU 147 = VG_(tdict).track_new_mem_stack_4_w_ECU || 148 VG_(tdict).track_new_mem_stack_8_w_ECU || 149 VG_(tdict).track_new_mem_stack_12_w_ECU || 150 VG_(tdict).track_new_mem_stack_16_w_ECU || 151 VG_(tdict).track_new_mem_stack_32_w_ECU || 152 VG_(tdict).track_new_mem_stack_112_w_ECU || 153 VG_(tdict).track_new_mem_stack_128_w_ECU || 154 VG_(tdict).track_new_mem_stack_144_w_ECU || 155 VG_(tdict).track_new_mem_stack_160_w_ECU; 156 157 if (any_new_mem_stack_N_w_ECU && ! VG_(tdict).track_new_mem_stack_w_ECU) { 158 *failmsg = "Tool error: one of the specialised 'new_mem_stack_N_w_ECU'\n" 159 " events tracked, but not the generic 'new_mem_stack_w_ECU' one.\n" 160 " 'new_mem_stack_w_ECU' should be defined\n"; 161 return False; 162 } 163 164 /* Check that in no cases are both with- and without-otag versions of the 165 same new_mem_stack_ function defined. */ 166 any_new_mem_stack_w_conflicting_otags 167 = (VG_(tdict).track_new_mem_stack_4 && VG_(tdict).track_new_mem_stack_4_w_ECU) || 168 (VG_(tdict).track_new_mem_stack_8 && VG_(tdict).track_new_mem_stack_8_w_ECU) || 169 (VG_(tdict).track_new_mem_stack_12 && VG_(tdict).track_new_mem_stack_12_w_ECU) || 170 (VG_(tdict).track_new_mem_stack_16 && VG_(tdict).track_new_mem_stack_16_w_ECU) || 171 (VG_(tdict).track_new_mem_stack_32 && VG_(tdict).track_new_mem_stack_32_w_ECU) || 172 (VG_(tdict).track_new_mem_stack_112 && VG_(tdict).track_new_mem_stack_112_w_ECU) || 173 (VG_(tdict).track_new_mem_stack_128 && VG_(tdict).track_new_mem_stack_128_w_ECU) || 174 (VG_(tdict).track_new_mem_stack_144 && VG_(tdict).track_new_mem_stack_144_w_ECU) || 175 (VG_(tdict).track_new_mem_stack_160 && VG_(tdict).track_new_mem_stack_160_w_ECU) || 176 (VG_(tdict).track_new_mem_stack && VG_(tdict).track_new_mem_stack_w_ECU); 177 178 if (any_new_mem_stack_w_conflicting_otags) { 179 *failmsg = "Tool error: tool supplies both a 'new_mem_stack_N' and a\n" 180 " 'new_mem_stack_N_w_ECU' function for some N (or none),\n" 181 " but you can only have one or the other (not both)\n"; 182 return False; 183 } 184 185 /* Check that die_mem_stack is defined if any die_mem_stack_N 186 are. */ 187 any_die_mem_stack_N 188 = VG_(tdict).track_die_mem_stack_4 || 189 VG_(tdict).track_die_mem_stack_8 || 190 VG_(tdict).track_die_mem_stack_12 || 191 VG_(tdict).track_die_mem_stack_16 || 192 VG_(tdict).track_die_mem_stack_32 || 193 VG_(tdict).track_die_mem_stack_112 || 194 VG_(tdict).track_die_mem_stack_128 || 195 VG_(tdict).track_die_mem_stack_144 || 196 VG_(tdict).track_die_mem_stack_160; 197 198 if (any_die_mem_stack_N && ! VG_(tdict).track_die_mem_stack) { 199 *failmsg = "Tool error: one of the specialised 'die_mem_stack_N'\n" 200 " events tracked, but not the generic 'die_mem_stack' one.\n" 201 " 'die_mem_stack' should be defined\n"; 202 return False; 203 } 204 205 return True; 206 207 #undef CHECK_NOT 208 } 209 210 /* Use macro because they're so repetitive */ 211 #define NEEDS(need) \ 212 extern void VG_(needs_##need)(void) \ 213 { \ 214 VG_(needs).need = True; \ 215 } 216 217 // These ones don't require any tool-supplied functions 218 NEEDS(libc_freeres) 219 NEEDS(core_errors) 220 NEEDS(var_info) 221 222 void VG_(needs_superblock_discards)( 223 void (*discard)(Addr, VexGuestExtents) 224 ) 225 { 226 VG_(needs).superblock_discards = True; 227 VG_(tdict).tool_discard_superblock_info = discard; 228 } 229 230 void VG_(needs_tool_errors)( 231 Bool (*eq) (VgRes, const Error*, const Error*), 232 void (*before_pp) (const Error*), 233 void (*pp) (const Error*), 234 Bool show_TIDs, 235 UInt (*update) (const Error*), 236 Bool (*recog) (const HChar*, Supp*), 237 Bool (*read_extra) (Int, HChar**, SizeT*, Int*, Supp*), 238 Bool (*matches) (const Error*, const Supp*), 239 const HChar* (*name) (const Error*), 240 SizeT (*get_xtra_si)(const Error*,/*OUT*/HChar*,Int), 241 SizeT (*print_xtra_su)(const Supp*,/*OUT*/HChar*,Int), 242 void (*update_xtra_su)(const Error*, const Supp*) 243 ) 244 { 245 VG_(needs).tool_errors = True; 246 VG_(tdict).tool_eq_Error = eq; 247 VG_(tdict).tool_before_pp_Error = before_pp; 248 VG_(tdict).tool_pp_Error = pp; 249 VG_(tdict).tool_show_ThreadIDs_for_errors = show_TIDs; 250 VG_(tdict).tool_update_extra = update; 251 VG_(tdict).tool_recognised_suppression = recog; 252 VG_(tdict).tool_read_extra_suppression_info = read_extra; 253 VG_(tdict).tool_error_matches_suppression = matches; 254 VG_(tdict).tool_get_error_name = name; 255 VG_(tdict).tool_get_extra_suppression_info = get_xtra_si; 256 VG_(tdict).tool_print_extra_suppression_use = print_xtra_su; 257 VG_(tdict).tool_update_extra_suppression_use = update_xtra_su; 258 } 259 260 void VG_(needs_command_line_options)( 261 Bool (*process)(const HChar*), 262 void (*usage)(void), 263 void (*debug_usage)(void) 264 ) 265 { 266 VG_(needs).command_line_options = True; 267 VG_(tdict).tool_process_cmd_line_option = process; 268 VG_(tdict).tool_print_usage = usage; 269 VG_(tdict).tool_print_debug_usage = debug_usage; 270 } 271 272 /* The tool's function for handling client requests. */ 273 static Bool (*tool_handle_client_request_func)(ThreadId, UWord *, UWord *); 274 275 static Bool wrap_tool_handle_client_request(ThreadId tid, UWord *arg1, 276 UWord *arg2) 277 { 278 Bool ret; 279 VG_(ok_to_discard_translations) = True; 280 ret = tool_handle_client_request_func(tid, arg1, arg2); 281 VG_(ok_to_discard_translations) = False; 282 return ret; 283 } 284 285 void VG_(needs_client_requests)( 286 Bool (*handle)(ThreadId, UWord*, UWord*) 287 ) 288 { 289 VG_(needs).client_requests = True; 290 tool_handle_client_request_func = handle; /* Stash away */ 291 /* Register the wrapper function */ 292 VG_(tdict).tool_handle_client_request = wrap_tool_handle_client_request; 293 } 294 295 void VG_(needs_syscall_wrapper)( 296 void(*pre) (ThreadId, UInt, UWord*, UInt), 297 void(*post)(ThreadId, UInt, UWord*, UInt, SysRes res) 298 ) 299 { 300 VG_(needs).syscall_wrapper = True; 301 VG_(tdict).tool_pre_syscall = pre; 302 VG_(tdict).tool_post_syscall = post; 303 } 304 305 void VG_(needs_sanity_checks)( 306 Bool(*cheap)(void), 307 Bool(*expen)(void) 308 ) 309 { 310 VG_(needs).sanity_checks = True; 311 VG_(tdict).tool_cheap_sanity_check = cheap; 312 VG_(tdict).tool_expensive_sanity_check = expen; 313 } 314 315 void VG_(needs_print_stats) ( 316 void (*print_stats)(void) 317 ) 318 { 319 VG_(needs).print_stats = True; 320 VG_(tdict).tool_print_stats = print_stats; 321 } 322 323 void VG_(needs_info_location) ( 324 void (*info_location)(Addr) 325 ) 326 { 327 VG_(needs).info_location = True; 328 VG_(tdict).tool_info_location = info_location; 329 } 330 331 void VG_(needs_malloc_replacement)( 332 void* (*malloc) ( ThreadId, SizeT ), 333 void* (*__builtin_new) ( ThreadId, SizeT ), 334 void* (*__builtin_vec_new) ( ThreadId, SizeT ), 335 void* (*memalign) ( ThreadId, SizeT, SizeT ), 336 void* (*calloc) ( ThreadId, SizeT, SizeT ), 337 void (*free) ( ThreadId, void* ), 338 void (*__builtin_delete) ( ThreadId, void* ), 339 void (*__builtin_vec_delete) ( ThreadId, void* ), 340 void* (*realloc) ( ThreadId, void*, SizeT ), 341 SizeT (*malloc_usable_size) ( ThreadId, void* ), 342 SizeT client_malloc_redzone_szB 343 ) 344 { 345 VG_(needs).malloc_replacement = True; 346 VG_(tdict).tool_malloc = malloc; 347 VG_(tdict).tool___builtin_new = __builtin_new; 348 VG_(tdict).tool___builtin_vec_new = __builtin_vec_new; 349 VG_(tdict).tool_memalign = memalign; 350 VG_(tdict).tool_calloc = calloc; 351 VG_(tdict).tool_free = free; 352 VG_(tdict).tool___builtin_delete = __builtin_delete; 353 VG_(tdict).tool___builtin_vec_delete = __builtin_vec_delete; 354 VG_(tdict).tool_realloc = realloc; 355 VG_(tdict).tool_malloc_usable_size = malloc_usable_size; 356 VG_(tdict).tool_client_redzone_szB = client_malloc_redzone_szB; 357 } 358 359 void VG_(needs_xml_output)( void ) 360 { 361 VG_(needs).xml_output = True; 362 } 363 364 void VG_(needs_final_IR_tidy_pass)( 365 IRSB*(*final_tidy)(IRSB*) 366 ) 367 { 368 VG_(needs).final_IR_tidy_pass = True; 369 VG_(tdict).tool_final_IR_tidy_pass = final_tidy; 370 } 371 372 /*--------------------------------------------------------------------*/ 373 /* Tracked events. Digit 'n' on DEFn is the REGPARMness. */ 374 375 #define DEF0(fn, args...) \ 376 void VG_(fn)(void(*f)(args)) { \ 377 VG_(tdict).fn = f; \ 378 } 379 380 #define DEF1(fn, args...) \ 381 void VG_(fn)(VG_REGPARM(1) void(*f)(args)) { \ 382 VG_(tdict).fn = f; \ 383 } 384 385 #define DEF2(fn, args...) \ 386 void VG_(fn)(VG_REGPARM(2) void(*f)(args)) { \ 387 VG_(tdict).fn = f; \ 388 } 389 390 DEF0(track_new_mem_startup, Addr, SizeT, Bool, Bool, Bool, ULong) 391 DEF0(track_new_mem_stack_signal, Addr, SizeT, UInt) 392 DEF0(track_new_mem_brk, Addr, SizeT, UInt) 393 DEF0(track_new_mem_mmap, Addr, SizeT, Bool, Bool, Bool, ULong) 394 395 DEF0(track_copy_mem_remap, Addr, Addr, SizeT) 396 DEF0(track_change_mem_mprotect, Addr, SizeT, Bool, Bool, Bool) 397 DEF0(track_die_mem_stack_signal, Addr, SizeT) 398 DEF0(track_die_mem_brk, Addr, SizeT) 399 DEF0(track_die_mem_munmap, Addr, SizeT) 400 401 DEF2(track_new_mem_stack_4_w_ECU, Addr, UInt) 402 DEF2(track_new_mem_stack_8_w_ECU, Addr, UInt) 403 DEF2(track_new_mem_stack_12_w_ECU, Addr, UInt) 404 DEF2(track_new_mem_stack_16_w_ECU, Addr, UInt) 405 DEF2(track_new_mem_stack_32_w_ECU, Addr, UInt) 406 DEF2(track_new_mem_stack_112_w_ECU, Addr, UInt) 407 DEF2(track_new_mem_stack_128_w_ECU, Addr, UInt) 408 DEF2(track_new_mem_stack_144_w_ECU, Addr, UInt) 409 DEF2(track_new_mem_stack_160_w_ECU, Addr, UInt) 410 DEF0(track_new_mem_stack_w_ECU, Addr, SizeT, UInt) 411 412 DEF1(track_new_mem_stack_4, Addr) 413 DEF1(track_new_mem_stack_8, Addr) 414 DEF1(track_new_mem_stack_12, Addr) 415 DEF1(track_new_mem_stack_16, Addr) 416 DEF1(track_new_mem_stack_32, Addr) 417 DEF1(track_new_mem_stack_112, Addr) 418 DEF1(track_new_mem_stack_128, Addr) 419 DEF1(track_new_mem_stack_144, Addr) 420 DEF1(track_new_mem_stack_160, Addr) 421 DEF0(track_new_mem_stack, Addr, SizeT) 422 423 DEF1(track_die_mem_stack_4, Addr) 424 DEF1(track_die_mem_stack_8, Addr) 425 DEF1(track_die_mem_stack_12, Addr) 426 DEF1(track_die_mem_stack_16, Addr) 427 DEF1(track_die_mem_stack_32, Addr) 428 DEF1(track_die_mem_stack_112, Addr) 429 DEF1(track_die_mem_stack_128, Addr) 430 DEF1(track_die_mem_stack_144, Addr) 431 DEF1(track_die_mem_stack_160, Addr) 432 DEF0(track_die_mem_stack, Addr, SizeT) 433 434 DEF0(track_ban_mem_stack, Addr, SizeT) 435 436 DEF0(track_pre_mem_read, CorePart, ThreadId, const HChar*, Addr, SizeT) 437 DEF0(track_pre_mem_read_asciiz, CorePart, ThreadId, const HChar*, Addr) 438 DEF0(track_pre_mem_write, CorePart, ThreadId, const HChar*, Addr, SizeT) 439 DEF0(track_post_mem_write, CorePart, ThreadId, Addr, SizeT) 440 441 DEF0(track_pre_reg_read, CorePart, ThreadId, const HChar*, PtrdiffT, SizeT) 442 DEF0(track_post_reg_write, CorePart, ThreadId, PtrdiffT, SizeT) 443 444 DEF0(track_copy_mem_to_reg, CorePart, ThreadId, Addr, PtrdiffT, SizeT) 445 DEF0(track_copy_reg_to_mem, CorePart, ThreadId, PtrdiffT, Addr, SizeT) 446 447 DEF0(track_post_reg_write_clientcall_return, ThreadId, PtrdiffT, SizeT, Addr) 448 449 DEF0(track_start_client_code, ThreadId, ULong) 450 DEF0(track_stop_client_code, ThreadId, ULong) 451 452 DEF0(track_pre_thread_ll_create, ThreadId, ThreadId) 453 DEF0(track_pre_thread_first_insn, ThreadId) 454 DEF0(track_pre_thread_ll_exit, ThreadId) 455 456 DEF0(track_pre_deliver_signal, ThreadId, Int sigNo, Bool) 457 DEF0(track_post_deliver_signal, ThreadId, Int sigNo) 458 459 /*--------------------------------------------------------------------*/ 460 /*--- end ---*/ 461 /*--------------------------------------------------------------------*/ 462
