1 2 /*--------------------------------------------------------------------*/ 3 /*--- Types and macros for writing syscall wrappers. ---*/ 4 /*--- priv_types_n_macros.h ---*/ 5 /*--------------------------------------------------------------------*/ 6 7 /* 8 This file is part of Valgrind, a dynamic binary instrumentation 9 framework. 10 11 Copyright (C) 2000-2013 Julian Seward 12 jseward (at) 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 32 #ifndef __PRIV_TYPES_N_MACROS_H 33 #define __PRIV_TYPES_N_MACROS_H 34 35 #include "pub_core_basics.h" // Addr 36 37 /* requires #include "pub_core_options.h" */ 38 /* requires #include "pub_core_signals.h" */ 39 40 /* This header defines types and macros which are useful for writing 41 syscall wrappers. It does not give prototypes for any such 42 headers, though: that is the job of the priv_syswrap-*.h headers. 43 This header gets included in any file which defines or declares 44 wrappers, and as such should only contain stuff which is relevant 45 to all such files. 46 */ 47 48 /* --------------------------------------------------------------------- 49 Types that are used in syscall wrappers. 50 ------------------------------------------------------------------ */ 51 52 /* Arguments for a syscall. */ 53 typedef 54 struct SyscallArgs { 55 Word sysno; 56 UWord arg1; 57 UWord arg2; 58 UWord arg3; 59 UWord arg4; 60 UWord arg5; 61 UWord arg6; 62 UWord arg7; 63 UWord arg8; 64 } 65 SyscallArgs; 66 67 /* Current status of a syscall being done on behalf of the client. */ 68 typedef 69 struct SyscallStatus { 70 enum { 71 /* call is complete, result is in 'res' */ 72 SsComplete=1, 73 /* syscall not yet completed; must be handed to the kernel */ 74 SsHandToKernel, 75 /* not currently handling a syscall for this thread */ 76 SsIdle 77 } what; 78 SysRes sres; /* only meaningful for .what == SsComplete */ 79 } 80 SyscallStatus; 81 82 /* Guest state layout info for syscall args. */ 83 typedef 84 struct { 85 // Note that, depending on the platform, arguments may be found in 86 // registers or on the stack. (See the comment at the top of 87 // syswrap-main.c for per-platform details.) For register arguments 88 // (which have o_arg field names) the o_arg value is the offset into 89 // the vex register state. For stack arguments (which have s_arg 90 // field names), the s_arg value is the offset from the stack pointer. 91 Int o_sysno; 92 # if defined(VGP_x86_linux) || defined(VGP_amd64_linux) \ 93 || defined(VGP_ppc32_linux) \ 94 || defined(VGP_ppc64be_linux) || defined(VGP_ppc64le_linux) \ 95 || defined(VGP_arm_linux) || defined(VGP_s390x_linux) \ 96 || defined(VGP_mips64_linux) || defined(VGP_arm64_linux) \ 97 || defined(VGP_tilegx_linux) 98 Int o_arg1; 99 Int o_arg2; 100 Int o_arg3; 101 Int o_arg4; 102 Int o_arg5; 103 Int o_arg6; 104 Int uu_arg7; 105 Int uu_arg8; 106 # elif defined(VGP_mips32_linux) 107 Int o_arg1; 108 Int o_arg2; 109 Int o_arg3; 110 Int o_arg4; 111 Int s_arg5; 112 Int s_arg6; 113 Int uu_arg7; 114 Int uu_arg8; 115 # elif defined(VGP_x86_darwin) 116 Int s_arg1; 117 Int s_arg2; 118 Int s_arg3; 119 Int s_arg4; 120 Int s_arg5; 121 Int s_arg6; 122 Int s_arg7; 123 Int s_arg8; 124 # elif defined(VGP_amd64_darwin) 125 Int o_arg1; 126 Int o_arg2; 127 Int o_arg3; 128 Int o_arg4; 129 Int o_arg5; 130 Int o_arg6; 131 Int s_arg7; 132 Int s_arg8; 133 # else 134 # error "Unknown platform" 135 # endif 136 } 137 SyscallArgLayout; 138 139 /* Flags describing syscall wrappers */ 140 #define SfMayBlock (1 << 1) /* may block */ 141 #define SfPostOnFail (1 << 2) /* call POST() function on failure */ 142 #define SfPollAfter (1 << 3) /* poll for signals on completion */ 143 #define SfYieldAfter (1 << 4) /* yield on completion */ 144 #define SfNoWriteResult (1 << 5) /* don't write result to guest state */ 145 146 147 /* --------------------------------------------------------------------- 148 The syscall table. 149 ------------------------------------------------------------------ */ 150 151 typedef 152 struct { 153 void (*before) ( ThreadId, 154 SyscallArgLayout*, 155 /*MOD*/SyscallArgs*, 156 /*OUT*/SyscallStatus*, 157 /*OUT*/UWord* 158 ); 159 160 void (*after) ( ThreadId, 161 SyscallArgs*, 162 SyscallStatus* 163 ); 164 } 165 SyscallTableEntry; 166 167 /* Syscall table entries bind __NR_xxx syscall numbers to the PRE/POST 168 wrappers for the relevant syscall used in the OS kernel for that 169 number. Note that the constant names don't always match the 170 wrapper names in a straightforward way. For example, on x86/Linux: 171 172 __NR_lchown --> sys_lchown16() 173 __NR_lchown32 --> sys_lchown() 174 __NR_select --> old_select() 175 __NR__newselect --> sys_select() 176 */ 177 178 179 /* A function to find the syscall table entry for a given sysno. If 180 none is found, return NULL. This used to be done with a single 181 fixed sized table exposed to the caller, but that's too inflexible; 182 hence now use a function which can do arbitrary messing around to 183 find the required entry. */ 184 #if defined(VGP_mips32_linux) 185 /* Up to 6 parameters, 4 in registers 2 on stack. */ 186 # define PRA1(s,t,a) PRRAn(1,s,t,a) 187 # define PRA2(s,t,a) PRRAn(2,s,t,a) 188 # define PRA3(s,t,a) PRRAn(3,s,t,a) 189 # define PRA4(s,t,a) PRRAn(4,s,t,a) 190 # define PRA5(s,t,a) PSRAn(5,s,t,a) 191 # define PRA6(s,t,a) PSRAn(6,s,t,a) 192 193 #endif 194 #if defined(VGO_linux) 195 extern 196 SyscallTableEntry* ML_(get_linux_syscall_entry)( UInt sysno ); 197 198 #elif defined(VGO_darwin) 199 /* XXX: Darwin still uses the old scheme of exposing the table 200 array(s) and size(s) directly to syswrap-main.c. This should be 201 fixed. */ 202 203 extern const SyscallTableEntry ML_(syscall_table)[]; 204 extern const UInt ML_(syscall_table_size); 205 206 #else 207 # error Unknown OS 208 #endif 209 210 /* --------------------------------------------------------------------- 211 Declaring and defining wrappers. 212 ------------------------------------------------------------------ */ 213 214 /* Templates for generating the PRE and POST macros -- that is, the 215 formal parameter lists for the definitions of wrapper functions. 216 217 Since these names exist in the global namespace, 'auxstr' should 218 give an auxiliary string, eg, "generic", "x86_linux", "linux", etc, 219 that ensures the names won't clash with other wrappers. 220 221 You should create corresponding global declarations using 222 DECL_TEMPLATE (indirectly) below. 223 224 Note. The silly name "arrghs" is used rather than just "args" 225 because a few wrappers declare the name "args" themselves, and 226 renaming those decls can change the name that comes out in error 227 messages (on scalar arg checks). Hence rename this instead. 228 */ 229 230 #define DEFN_PRE_TEMPLATE(auxstr, name) \ 231 void vgSysWrap_##auxstr##_##name##_before \ 232 ( ThreadId tid, \ 233 SyscallArgLayout* layout, \ 234 /*MOD*/SyscallArgs* arrghs, \ 235 /*OUT*/SyscallStatus* status, \ 236 /*OUT*/UWord* flags \ 237 ) 238 239 #define DEFN_POST_TEMPLATE(auxstr, name) \ 240 void vgSysWrap_##auxstr##_##name##_after \ 241 ( ThreadId tid, \ 242 SyscallArgs* arrghs, \ 243 SyscallStatus* status \ 244 ) 245 246 247 /* This macro generates declarations (prototypes) for wrappers. It 248 declares both the pre-wrapper and the post-wrapper, even though the 249 post-wrapper may not actually exist. 250 */ 251 #define DECL_TEMPLATE(auxstr, name) \ 252 extern \ 253 void vgSysWrap_##auxstr##_##name##_before \ 254 ( ThreadId tid, \ 255 SyscallArgLayout* layout, \ 256 /*MOD*/SyscallArgs* arrghs, \ 257 /*OUT*/SyscallStatus* status, \ 258 /*OUT*/UWord* flags \ 259 ); \ 260 extern \ 261 void vgSysWrap_##auxstr##_##name##_after \ 262 ( ThreadId tid, \ 263 SyscallArgs* arrghs, \ 264 SyscallStatus* status \ 265 ); 266 267 268 269 /* Macros for conveniently generating entries in the syscall 270 tables. This first pair are not used directly. */ 271 272 #define WRAPPER_ENTRY_X_(auxstr, sysno, name) \ 273 [sysno] = { vgSysWrap_##auxstr##_##name##_before, NULL } 274 #define WRAPPER_ENTRY_XY(auxstr, sysno, name) \ 275 [sysno] = { vgSysWrap_##auxstr##_##name##_before, \ 276 vgSysWrap_##auxstr##_##name##_after } 277 278 #define WRAPPER_PRE_NAME(auxstr, name) \ 279 vgSysWrap_##auxstr##_##name##_before 280 #define WRAPPER_POST_NAME(auxstr, name) \ 281 vgSysWrap_##auxstr##_##name##_after 282 283 /* Add a generic wrapper to a syscall table. */ 284 #if defined(VGO_linux) 285 # define GENX_(sysno, name) WRAPPER_ENTRY_X_(generic, sysno, name) 286 # define GENXY(sysno, name) WRAPPER_ENTRY_XY(generic, sysno, name) 287 #elif defined(VGO_darwin) 288 # define GENX_(sysno, name) WRAPPER_ENTRY_X_(generic, VG_DARWIN_SYSNO_INDEX(sysno), name) 289 # define GENXY(sysno, name) WRAPPER_ENTRY_XY(generic, VG_DARWIN_SYSNO_INDEX(sysno), name) 290 #else 291 # error Unknown OS 292 #endif 293 294 /* Add a Linux-specific, arch-independent wrapper to a syscall 295 table. */ 296 #define LINX_(sysno, name) WRAPPER_ENTRY_X_(linux, sysno, name) 297 #define LINXY(sysno, name) WRAPPER_ENTRY_XY(linux, sysno, name) 298 299 300 /* --------------------------------------------------------------------- 301 Macros useful for writing wrappers concisely. These refer to the 302 parameters declared by DEFN_{PRE,POST}_TEMPLATE and so in a way do 303 not help clarity of understanding. But they are just too useful to 304 omit. 305 ------------------------------------------------------------------ */ 306 307 /* Reference to the syscall's arguments -- the ones which the 308 pre-wrapper may have modified, not the original copy. */ 309 #define SYSNO (arrghs->sysno) 310 #define ARG1 (arrghs->arg1) 311 #define ARG2 (arrghs->arg2) 312 #define ARG3 (arrghs->arg3) 313 #define ARG4 (arrghs->arg4) 314 #define ARG5 (arrghs->arg5) 315 #define ARG6 (arrghs->arg6) 316 #define ARG7 (arrghs->arg7) 317 #define ARG8 (arrghs->arg8) 318 319 /* Reference to the syscall's current result status/value. General 320 paranoia all round. */ 321 #define SUCCESS (status->what == SsComplete && !sr_isError(status->sres)) 322 #define FAILURE (status->what == SsComplete && sr_isError(status->sres)) 323 #define SWHAT (status->what) 324 #define RES (getRES(status)) 325 #define RESHI (getRESHI(status)) 326 #define ERR (getERR(status)) 327 328 static inline UWord getRES ( SyscallStatus* st ) { 329 vg_assert(st->what == SsComplete); 330 vg_assert(!sr_isError(st->sres)); 331 return sr_Res(st->sres); 332 } 333 334 #if defined(VGO_darwin) 335 static inline UWord getRESHI ( SyscallStatus* st ) { 336 vg_assert(st->what == SsComplete); 337 vg_assert(!sr_isError(st->sres)); 338 return sr_ResHI(st->sres); 339 } 340 #endif 341 342 static inline UWord getERR ( SyscallStatus* st ) { 343 vg_assert(st->what == SsComplete); 344 vg_assert(sr_isError(st->sres)); 345 return sr_Err(st->sres); 346 } 347 348 349 /* Set the current result status/value in various ways. */ 350 #define SET_STATUS_Success(zzz) \ 351 do { status->what = SsComplete; \ 352 status->sres = VG_(mk_SysRes_Success)(zzz); \ 353 } while (0) 354 355 #define SET_STATUS_Failure(zzz) \ 356 do { Word wzz = (Word)(zzz); \ 357 /* Catch out wildly bogus error values. */ \ 358 vg_assert(wzz >= 0 && wzz < 10000); \ 359 status->what = SsComplete; \ 360 status->sres = VG_(mk_SysRes_Error)(wzz); \ 361 } while (0) 362 363 #define SET_STATUS_from_SysRes(zzz) \ 364 do { \ 365 status->what = SsComplete; \ 366 status->sres = (zzz); \ 367 } while (0) 368 369 370 #define PRINT(format, args...) \ 371 if (VG_(clo_trace_syscalls)) \ 372 VG_(printf)(format, ## args) 373 374 #define FUSE_COMPATIBLE_MAY_BLOCK() \ 375 if (SimHintiS(SimHint_fuse_compatible, VG_(clo_sim_hints))) \ 376 *flags |= SfMayBlock 377 378 379 /* Macros used to tell tools about uses of scalar arguments. Note, 380 these assume little-endianness. These can only be used in 381 pre-wrappers, and they refer to the layout parameter passed in. */ 382 /* PRRSN == "pre-register-read-sysno" 383 PRRAn == "pre-register-read-argument" 384 PSRAn == "pre-stack-read-argument" 385 PRAn == "pre-read-argument" 386 */ 387 388 #if defined(VGP_mips32_linux) 389 /* Up to 6 parameters, 4 in registers 2 on stack. */ 390 # define PRA1(s,t,a) PRRAn(1,s,t,a) 391 # define PRA2(s,t,a) PRRAn(2,s,t,a) 392 # define PRA3(s,t,a) PRRAn(3,s,t,a) 393 # define PRA4(s,t,a) PRRAn(4,s,t,a) 394 # define PRA5(s,t,a) PSRAn(5,s,t,a) 395 # define PRA6(s,t,a) PSRAn(6,s,t,a) 396 397 #elif defined(VGO_linux) && !defined(VGP_mips32_linux) 398 /* Up to 6 parameters, all in registers. */ 399 # define PRA1(s,t,a) PRRAn(1,s,t,a) 400 # define PRA2(s,t,a) PRRAn(2,s,t,a) 401 # define PRA3(s,t,a) PRRAn(3,s,t,a) 402 # define PRA4(s,t,a) PRRAn(4,s,t,a) 403 # define PRA5(s,t,a) PRRAn(5,s,t,a) 404 # define PRA6(s,t,a) PRRAn(6,s,t,a) 405 406 #elif defined(VGP_x86_darwin) 407 /* Up to 8 parameters, all on the stack. */ 408 # define PRA1(s,t,a) PSRAn(1,s,t,a) 409 # define PRA2(s,t,a) PSRAn(2,s,t,a) 410 # define PRA3(s,t,a) PSRAn(3,s,t,a) 411 # define PRA4(s,t,a) PSRAn(4,s,t,a) 412 # define PRA5(s,t,a) PSRAn(5,s,t,a) 413 # define PRA6(s,t,a) PSRAn(6,s,t,a) 414 # define PRA7(s,t,a) PSRAn(7,s,t,a) 415 # define PRA8(s,t,a) PSRAn(8,s,t,a) 416 417 #elif defined(VGP_amd64_darwin) 418 /* Up to 8 parameters, 6 in registers, 2 on the stack. */ 419 # define PRA1(s,t,a) PRRAn(1,s,t,a) 420 # define PRA2(s,t,a) PRRAn(2,s,t,a) 421 # define PRA3(s,t,a) PRRAn(3,s,t,a) 422 # define PRA4(s,t,a) PRRAn(4,s,t,a) 423 # define PRA5(s,t,a) PRRAn(5,s,t,a) 424 # define PRA6(s,t,a) PRRAn(6,s,t,a) 425 # define PRA7(s,t,a) PSRAn(7,s,t,a) 426 # define PRA8(s,t,a) PSRAn(8,s,t,a) 427 428 #else 429 # error Unknown platform 430 #endif 431 432 433 /* Tell the tool that the syscall number is being read. */ 434 #define PRRSN \ 435 VG_(tdict).track_pre_reg_read(Vg_CoreSysCall, tid, "(syscallno)", \ 436 layout->o_sysno, sizeof(UWord)); 437 438 /* REGISTER PARAMETERS */ 439 440 /* PRRAn: Tell the tool that the register holding the n-th syscall 441 argument is being read, at type 't' which must be at most the size 442 of a register but can be smaller. In the latter case we need to be 443 careful about endianness. */ 444 445 /* little-endian: the part of the guest state being read is 446 let here = offset_of_reg 447 in [here .. here + sizeof(t) - 1] 448 since the least significant parts of the guest register are stored 449 in memory at the lowest address. 450 */ 451 #define PRRAn_LE(n,s,t,a) \ 452 do { \ 453 Int here = layout->o_arg##n; \ 454 vg_assert(sizeof(t) <= sizeof(UWord)); \ 455 vg_assert(here >= 0); \ 456 VG_(tdict).track_pre_reg_read( \ 457 Vg_CoreSysCall, tid, s"("#a")", \ 458 here, sizeof(t) \ 459 ); \ 460 } while (0) 461 462 /* big-endian: the part of the guest state being read is 463 let next = offset_of_reg + sizeof(reg) 464 in [next - sizeof(t) .. next - 1] 465 since the least significant parts of the guest register are stored 466 in memory at the highest address. 467 */ 468 #define PRRAn_BE(n,s,t,a) \ 469 do { \ 470 Int here = layout->o_arg##n; \ 471 Int next = layout->o_arg##n + sizeof(UWord); \ 472 vg_assert(sizeof(t) <= sizeof(UWord)); \ 473 vg_assert(here >= 0); \ 474 VG_(tdict).track_pre_reg_read( \ 475 Vg_CoreSysCall, tid, s"("#a")", \ 476 next-sizeof(t), sizeof(t) \ 477 ); \ 478 } while (0) 479 480 #if defined(VG_BIGENDIAN) 481 # define PRRAn(n,s,t,a) PRRAn_BE(n,s,t,a) 482 #elif defined(VG_LITTLEENDIAN) 483 # define PRRAn(n,s,t,a) PRRAn_LE(n,s,t,a) 484 #else 485 # error "Unknown endianness" 486 #endif 487 488 489 /* STACK PARAMETERS */ 490 491 /* PSRAn: Tell the tool that the memory holding the n-th syscall 492 argument is being read, at type 't' which must be at most the size 493 of a register but can be smaller. In the latter case we need to be 494 careful about endianness. */ 495 496 /* little-endian: the part of the guest state being read is 497 let here = offset_of_reg 498 in [here .. here + sizeof(t) - 1] 499 since the least significant parts of the guest register are stored 500 in memory at the lowest address. 501 */ 502 #define PSRAn_LE(n,s,t,a) \ 503 do { \ 504 Addr here = layout->s_arg##n + VG_(get_SP)(tid); \ 505 vg_assert(sizeof(t) <= sizeof(UWord)); \ 506 VG_(tdict).track_pre_mem_read( \ 507 Vg_CoreSysCallArgInMem, tid, s"("#a")", \ 508 here, sizeof(t) \ 509 ); \ 510 } while (0) 511 512 /* big-endian: the part of the guest state being read is 513 let next = offset_of_reg + sizeof(reg) 514 in [next - sizeof(t) .. next - 1] 515 since the least significant parts of the guest register are stored 516 in memory at the highest address. 517 */ 518 #if (defined(VGP_mips32_linux) && defined (_MIPSEB)) 519 #define PSRAn_BE(n,s,t,a) \ 520 do { \ 521 Addr next = layout->s_arg##n + sizeof(UWord) + \ 522 VG_(get_SP)(tid); \ 523 vg_assert(sizeof(t) <= sizeof(UWord)); \ 524 VG_(tdict).track_pre_mem_read( \ 525 Vg_CoreSysCallArgInMem, tid, s"("#a")", \ 526 next-sizeof(t), sizeof(t) \ 527 ); \ 528 } while (0) 529 #else 530 #define PSRAn_BE(n,s,t,a) \ 531 do { \ 532 Addr next = layout->o_arg##n + sizeof(UWord) + \ 533 VG_(threads)[tid].arch.vex.VG_STACK_PTR; \ 534 vg_assert(sizeof(t) <= sizeof(UWord)); \ 535 VG_(tdict).track_pre_mem_read( \ 536 Vg_CoreSysCallArgInMem, tid, s"("#a")", \ 537 next-sizeof(t), sizeof(t) \ 538 ); \ 539 } while (0) 540 #endif 541 542 #if defined(VG_BIGENDIAN) 543 # define PSRAn(n,s,t,a) PSRAn_BE(n,s,t,a) 544 #elif defined(VG_LITTLEENDIAN) 545 # define PSRAn(n,s,t,a) PSRAn_LE(n,s,t,a) 546 #else 547 # error "Unknown endianness" 548 #endif 549 550 551 #define PRE_REG_READ0(tr, s) \ 552 if (VG_(tdict).track_pre_reg_read) { \ 553 PRRSN; \ 554 } 555 #define PRE_REG_READ1(tr, s, t1, a1) \ 556 if (VG_(tdict).track_pre_reg_read) { \ 557 PRRSN; \ 558 PRA1(s,t1,a1); \ 559 } 560 #define PRE_REG_READ2(tr, s, t1, a1, t2, a2) \ 561 if (VG_(tdict).track_pre_reg_read) { \ 562 PRRSN; \ 563 PRA1(s,t1,a1); PRA2(s,t2,a2); \ 564 } 565 #define PRE_REG_READ3(tr, s, t1, a1, t2, a2, t3, a3) \ 566 if (VG_(tdict).track_pre_reg_read) { \ 567 PRRSN; \ 568 PRA1(s,t1,a1); PRA2(s,t2,a2); PRA3(s,t3,a3); \ 569 } 570 #define PRE_REG_READ4(tr, s, t1, a1, t2, a2, t3, a3, t4, a4) \ 571 if (VG_(tdict).track_pre_reg_read) { \ 572 PRRSN; \ 573 PRA1(s,t1,a1); PRA2(s,t2,a2); PRA3(s,t3,a3); \ 574 PRA4(s,t4,a4); \ 575 } 576 #define PRE_REG_READ5(tr, s, t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) \ 577 if (VG_(tdict).track_pre_reg_read) { \ 578 PRRSN; \ 579 PRA1(s,t1,a1); PRA2(s,t2,a2); PRA3(s,t3,a3); \ 580 PRA4(s,t4,a4); PRA5(s,t5,a5); \ 581 } 582 #define PRE_REG_READ6(tr, s, t1, a1, t2, a2, t3, a3, t4, a4, t5, a5, t6, a6) \ 583 if (VG_(tdict).track_pre_reg_read) { \ 584 PRRSN; \ 585 PRA1(s,t1,a1); PRA2(s,t2,a2); PRA3(s,t3,a3); \ 586 PRA4(s,t4,a4); PRA5(s,t5,a5); PRA6(s,t6,a6); \ 587 } 588 #define PRE_REG_READ7(tr, s, t1, a1, t2, a2, t3, a3, t4, a4, t5, a5, t6, a6, t7, a7) \ 589 if (VG_(tdict).track_pre_reg_read) { \ 590 PRRSN; \ 591 PRA1(s,t1,a1); PRA2(s,t2,a2); PRA3(s,t3,a3); \ 592 PRA4(s,t4,a4); PRA5(s,t5,a5); PRA6(s,t6,a6); \ 593 PRA7(s,t7,a7); \ 594 } 595 596 #define PRE_REG_READ8(tr, s, t1, a1, t2, a2, t3, a3, t4, a4, t5, a5, t6, a6, t7, a7, t8, a8) \ 597 if (VG_(tdict).track_pre_reg_read) { \ 598 PRRSN; \ 599 PRA1(s,t1,a1); PRA2(s,t2,a2); PRA3(s,t3,a3); \ 600 PRA4(s,t4,a4); PRA5(s,t5,a5); PRA6(s,t6,a6); \ 601 PRA7(s,t7,a7); PRA8(s,t8,a8); \ 602 } 603 604 #define PRE_MEM_READ(zzname, zzaddr, zzlen) \ 605 VG_TRACK( pre_mem_read, Vg_CoreSysCall, tid, zzname, zzaddr, zzlen) 606 607 #define PRE_MEM_RASCIIZ(zzname, zzaddr) \ 608 VG_TRACK( pre_mem_read_asciiz, Vg_CoreSysCall, tid, zzname, zzaddr) 609 610 #define PRE_MEM_WRITE(zzname, zzaddr, zzlen) \ 611 VG_TRACK( pre_mem_write, Vg_CoreSysCall, tid, zzname, zzaddr, zzlen) 612 613 #define POST_MEM_WRITE(zzaddr, zzlen) \ 614 VG_TRACK( post_mem_write, Vg_CoreSysCall, tid, zzaddr, zzlen) 615 616 617 #define PRE_FIELD_READ(zzname, zzfield) \ 618 PRE_MEM_READ(zzname, (UWord)&zzfield, sizeof(zzfield)) 619 620 #define PRE_FIELD_WRITE(zzname, zzfield) \ 621 PRE_MEM_WRITE(zzname, (UWord)&zzfield, sizeof(zzfield)) 622 623 #define POST_FIELD_WRITE(zzfield) \ 624 POST_MEM_WRITE((UWord)&zzfield, sizeof(zzfield)) 625 626 627 #endif // __PRIV_TYPES_N_MACROS_H 628 629 /*--------------------------------------------------------------------*/ 630 /*--- end ---*/ 631 /*--------------------------------------------------------------------*/ 632
