1 /* perl.h 2 * 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others 5 * 6 * You may distribute under the terms of either the GNU General Public 7 * License or the Artistic License, as specified in the README file. 8 * 9 */ 10 11 #ifndef H_PERL 12 #define H_PERL 1 13 14 #ifdef PERL_FOR_X2P 15 /* 16 * This file is being used for x2p stuff. 17 * Above symbol is defined via -D in 'x2p/Makefile.SH' 18 * Decouple x2p stuff from some of perls more extreme eccentricities. 19 */ 20 #undef MULTIPLICITY 21 #undef USE_STDIO 22 #define USE_STDIO 23 #endif /* PERL_FOR_X2P */ 24 25 #ifdef PERL_MICRO 26 # include "uconfig.h" 27 #else 28 # include "config.h" 29 #endif 30 31 /* this is used for functions which take a depth trailing 32 * argument under debugging */ 33 #ifdef DEBUGGING 34 #define _pDEPTH ,U32 depth 35 #define _aDEPTH ,depth 36 #else 37 #define _pDEPTH 38 #define _aDEPTH 39 #endif 40 41 /* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined 42 * because the __STDC_VERSION__ became a thing only with C90. Therefore, 43 * with gcc, HAS_C99 will never become true as long as we use -std=c89. 44 45 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true, 46 * all the C99 features are there and are correct. */ 47 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ 48 defined(_STDC_C99) || defined(__c99) 49 # define HAS_C99 1 50 #endif 51 52 /* See L<perlguts/"The Perl API"> for detailed notes on 53 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */ 54 55 /* XXX NOTE that from here --> to <-- the same logic is 56 * repeated in makedef.pl, so be certain to update 57 * both places when editing. */ 58 59 #ifdef USE_ITHREADS 60 # if !defined(MULTIPLICITY) 61 # define MULTIPLICITY 62 # endif 63 #endif 64 65 #ifdef PERL_GLOBAL_STRUCT_PRIVATE 66 # ifndef PERL_GLOBAL_STRUCT 67 # define PERL_GLOBAL_STRUCT 68 # endif 69 #endif 70 71 #ifdef PERL_GLOBAL_STRUCT 72 # ifndef MULTIPLICITY 73 # define MULTIPLICITY 74 # endif 75 #endif 76 77 #ifdef MULTIPLICITY 78 # ifndef PERL_IMPLICIT_CONTEXT 79 # define PERL_IMPLICIT_CONTEXT 80 # endif 81 #endif 82 83 /* undef WIN32 when building on Cygwin (for libwin32) - gph */ 84 #ifdef __CYGWIN__ 85 # undef WIN32 86 # undef _WIN32 87 #endif 88 89 #if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS)) 90 # ifndef SYMBIAN 91 # define SYMBIAN 92 # endif 93 #endif 94 95 #ifdef __SYMBIAN32__ 96 # include "symbian/symbian_proto.h" 97 #endif 98 99 /* Any stack-challenged places. The limit varies (and often 100 * is configurable), but using more than a kilobyte of stack 101 * is usually dubious in these systems. */ 102 #if defined(__SYMBIAN32__) 103 /* Symbian: need to work around the SDK features. * 104 * On WINS: MS VC5 generates calls to _chkstk, * 105 * if a "large" stack frame is allocated. * 106 * gcc on MARM does not generate calls like these. */ 107 # define USE_HEAP_INSTEAD_OF_STACK 108 #endif 109 110 /* Use the reentrant APIs like localtime_r and getpwent_r */ 111 /* Win32 has naturally threadsafe libraries, no need to use any _r variants. 112 * XXX KEEP makedef.pl copy of this code in sync */ 113 #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) 114 # define USE_REENTRANT_API 115 #endif 116 117 /* <--- here ends the logic shared by perl.h and makedef.pl */ 118 119 /* Microsoft Visual C++ 6.0 needs special treatment in numerous places */ 120 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300 121 # define USING_MSVC6 122 #endif 123 124 #undef START_EXTERN_C 125 #undef END_EXTERN_C 126 #undef EXTERN_C 127 #ifdef __cplusplus 128 # define START_EXTERN_C extern "C" { 129 # define END_EXTERN_C } 130 # define EXTERN_C extern "C" 131 #else 132 # define START_EXTERN_C 133 # define END_EXTERN_C 134 # define EXTERN_C extern 135 #endif 136 137 /* Fallback definitions in case we don't have definitions from config.h. 138 This should only matter for systems that don't use Configure and 139 haven't been modified to define PERL_STATIC_INLINE yet. 140 */ 141 #if !defined(PERL_STATIC_INLINE) 142 # ifdef HAS_STATIC_INLINE 143 # define PERL_STATIC_INLINE static inline 144 # else 145 # define PERL_STATIC_INLINE static 146 # endif 147 #endif 148 149 #if defined(PERL_GLOBAL_STRUCT) && !defined(PERL_GET_VARS) 150 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 151 EXTERN_C struct perl_vars* Perl_GetVarsPrivate(); 152 # define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */ 153 # else 154 # define PERL_GET_VARS() PL_VarsPtr 155 # endif 156 #endif 157 158 /* this used to be off by default, now its on, see perlio.h */ 159 #define PERLIO_FUNCS_CONST 160 161 #define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL 162 163 #ifdef PERL_GLOBAL_STRUCT 164 # define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS() 165 #else 166 # define dVAR dNOOP 167 #endif 168 169 #ifdef PERL_IMPLICIT_CONTEXT 170 # ifndef MULTIPLICITY 171 # define MULTIPLICITY 172 # endif 173 # define tTHX PerlInterpreter* 174 # define pTHX tTHX my_perl PERL_UNUSED_DECL 175 # define aTHX my_perl 176 # define aTHXa(a) aTHX = (tTHX)a 177 # ifdef PERL_GLOBAL_STRUCT 178 # define dTHXa(a) dVAR; pTHX = (tTHX)a 179 # else 180 # define dTHXa(a) pTHX = (tTHX)a 181 # endif 182 # ifdef PERL_GLOBAL_STRUCT 183 # define dTHX dVAR; pTHX = PERL_GET_THX 184 # else 185 # define dTHX pTHX = PERL_GET_THX 186 # endif 187 # define pTHX_ pTHX, 188 # define aTHX_ aTHX, 189 # define pTHX_1 2 190 # define pTHX_2 3 191 # define pTHX_3 4 192 # define pTHX_4 5 193 # define pTHX_5 6 194 # define pTHX_6 7 195 # define pTHX_7 8 196 # define pTHX_8 9 197 # define pTHX_9 10 198 # define pTHX_12 13 199 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL) 200 # define PERL_TRACK_MEMPOOL 201 # endif 202 #else 203 # undef PERL_TRACK_MEMPOOL 204 #endif 205 206 #ifdef DEBUGGING 207 # define dTHX_DEBUGGING dTHX 208 #else 209 # define dTHX_DEBUGGING dNOOP 210 #endif 211 212 #define STATIC static 213 214 #ifndef PERL_CORE 215 /* Do not use these macros. They were part of PERL_OBJECT, which was an 216 * implementation of multiplicity using C++ objects. They have been left 217 * here solely for the sake of XS code which has incorrectly 218 * cargo-culted them. 219 */ 220 #define CPERLscope(x) x 221 #define CPERLarg void 222 #define CPERLarg_ 223 #define _CPERLarg 224 #define PERL_OBJECT_THIS 225 #define _PERL_OBJECT_THIS 226 #define PERL_OBJECT_THIS_ 227 #define CALL_FPTR(fptr) (*fptr) 228 #define MEMBER_TO_FPTR(name) name 229 #endif /* !PERL_CORE */ 230 231 #define CALLRUNOPS PL_runops 232 233 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags)) 234 235 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags) 236 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \ 237 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \ 238 (strbeg),(minend),(sv),(data),(flags)) 239 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \ 240 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \ 241 (strend),(flags),(data)) 242 #define CALLREG_INTUIT_STRING(prog) \ 243 RX_ENGINE(prog)->checkstr(aTHX_ (prog)) 244 245 #define CALLREGFREE(prog) \ 246 Perl_pregfree(aTHX_ (prog)) 247 248 #define CALLREGFREE_PVT(prog) \ 249 if(prog) RX_ENGINE(prog)->rxfree(aTHX_ (prog)) 250 251 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \ 252 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv)) 253 254 #define CALLREG_NUMBUF_STORE(rx,paren,value) \ 255 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value)) 256 257 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \ 258 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren)) 259 260 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \ 261 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH)) 262 263 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \ 264 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE)) 265 266 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \ 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE)) 268 269 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \ 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR)) 271 272 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \ 273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS)) 274 275 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \ 276 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY)) 277 278 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \ 279 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY)) 280 281 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \ 282 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR)) 283 284 #define CALLREG_NAMED_BUFF_COUNT(rx) \ 285 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT) 286 287 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \ 288 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags) 289 290 #define CALLREG_PACKAGE(rx) \ 291 RX_ENGINE(rx)->qr_package(aTHX_ (rx)) 292 293 #if defined(USE_ITHREADS) 294 #define CALLREGDUPE(prog,param) \ 295 Perl_re_dup(aTHX_ (prog),(param)) 296 297 #define CALLREGDUPE_PVT(prog,param) \ 298 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \ 299 : (REGEXP *)NULL) 300 #endif 301 302 303 304 305 306 /* 307 * Because of backward compatibility reasons the PERL_UNUSED_DECL 308 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh. 309 * 310 * Note that there are C compilers such as MetroWerks CodeWarrior 311 * which do not have an "inlined" way (like the gcc __attribute__) of 312 * marking unused variables (they need e.g. a #pragma) and therefore 313 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even 314 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above). 315 * 316 */ 317 318 #if defined(__SYMBIAN32__) && defined(__GNUC__) 319 # ifdef __cplusplus 320 # define PERL_UNUSED_DECL 321 # else 322 # define PERL_UNUSED_DECL __attribute__((unused)) 323 # endif 324 #endif 325 326 #ifndef PERL_UNUSED_DECL 327 # if defined(HASATTRIBUTE_UNUSED) && (!defined(__cplusplus) || __GNUC__ >= 4) 328 # define PERL_UNUSED_DECL __attribute__unused__ 329 # else 330 # define PERL_UNUSED_DECL 331 # endif 332 #endif 333 334 /* gcc -Wall: 335 * for silencing unused variables that are actually used most of the time, 336 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs, 337 * or variables/arguments that are used only in certain configurations. 338 */ 339 #ifndef PERL_UNUSED_ARG 340 # define PERL_UNUSED_ARG(x) ((void)sizeof(x)) 341 #endif 342 #ifndef PERL_UNUSED_VAR 343 # define PERL_UNUSED_VAR(x) ((void)sizeof(x)) 344 #endif 345 346 #if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT) 347 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl) 348 #else 349 # define PERL_UNUSED_CONTEXT 350 #endif 351 352 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions, 353 * g++ allows them but seems to have problems with them 354 * (insane errors ensue). 355 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2). 356 */ 357 #if defined(PERL_GCC_PEDANTIC) || \ 358 (defined(__GNUC__) && defined(__cplusplus) && \ 359 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2)))) 360 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN 361 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN 362 # endif 363 #endif 364 365 /* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results 366 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)). 367 * 368 * The main reason for this is that the combination of gcc -Wunused-result 369 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot 370 * be silenced with casting to void. This causes trouble when the system 371 * header files use the attribute. 372 * 373 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning 374 * is there for a good reason: you might lose success/failure information, 375 * or leak resources, or changes in resources. 376 * 377 * But sometimes you just want to ignore the return value, e.g. on 378 * codepaths soon ending up in abort, or in "best effort" attempts, 379 * or in situations where there is no good way to handle failures. 380 * 381 * Sometimes PERL_UNUSED_RESULT might not be the most natural way: 382 * another possibility is that you can capture the return value 383 * and use PERL_UNUSED_VAR on that. 384 * 385 * The __typeof__() is used instead of typeof() since typeof() is not 386 * available under strict C89, and because of compilers masquerading 387 * as gcc (clang and icc), we want exactly the gcc extension 388 * __typeof__ and nothing else. 389 */ 390 #ifndef PERL_UNUSED_RESULT 391 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT) 392 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END 393 # else 394 # define PERL_UNUSED_RESULT(v) ((void)(v)) 395 # endif 396 #endif 397 398 /* on gcc (and clang), specify that a warning should be temporarily 399 * ignored; e.g. 400 * 401 * GCC_DIAG_IGNORE_DECL(-Wmultichar); 402 * char b = 'ab'; 403 * GCC_DIAG_RESTORE_DECL; 404 * 405 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html 406 * 407 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011; 408 * clang only pretends to be GCC 4.2, but still supports push/pop. 409 * 410 * Note on usage: all macros must be used at a place where a declaration 411 * or statement can occur, i.e., not in the middle of an expression. 412 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but 413 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and 414 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave 415 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT() 416 * and *_DIAG_RESTORE_STMT must be used with a following semicolon, 417 * and behave syntactically as statements (like NOOP). 418 * 419 */ 420 421 #if defined(__clang__) || defined(__clang) || \ 422 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406) 423 # define GCC_DIAG_PRAGMA(x) _Pragma (#x) 424 /* clang has "clang diagnostic" pragmas, but also understands gcc. */ 425 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \ 426 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x) 427 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop") 428 #else 429 # define GCC_DIAG_IGNORE(w) 430 # define GCC_DIAG_RESTORE 431 #endif 432 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP 433 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP 434 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP 435 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP 436 /* for clang specific pragmas */ 437 #if defined(__clang__) || defined(__clang) 438 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x) 439 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \ 440 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x) 441 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop") 442 #else 443 # define CLANG_DIAG_IGNORE(w) 444 # define CLANG_DIAG_RESTORE 445 #endif 446 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP 447 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP 448 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP 449 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP 450 451 #define NOOP /*EMPTY*/(void)0 452 #define dNOOP struct Perl___notused_struct 453 454 #ifndef pTHX 455 /* Don't bother defining tTHX ; using it outside 456 * code guarded by PERL_IMPLICIT_CONTEXT is an error. 457 */ 458 # define pTHX void 459 # define pTHX_ 460 # define aTHX 461 # define aTHX_ 462 # define aTHXa(a) NOOP 463 # define dTHXa(a) dNOOP 464 # define dTHX dNOOP 465 # define pTHX_1 1 466 # define pTHX_2 2 467 # define pTHX_3 3 468 # define pTHX_4 4 469 # define pTHX_5 5 470 # define pTHX_6 6 471 # define pTHX_7 7 472 # define pTHX_8 8 473 # define pTHX_9 9 474 # define pTHX_12 12 475 #endif 476 477 #ifndef dVAR 478 # define dVAR dNOOP 479 #endif 480 481 /* these are only defined for compatibility; should not be used internally */ 482 #if !defined(pTHXo) && !defined(PERL_CORE) 483 # define pTHXo pTHX 484 # define pTHXo_ pTHX_ 485 # define aTHXo aTHX 486 # define aTHXo_ aTHX_ 487 # define dTHXo dTHX 488 # define dTHXoa(x) dTHXa(x) 489 #endif 490 491 #ifndef pTHXx 492 # define pTHXx PerlInterpreter *my_perl 493 # define pTHXx_ pTHXx, 494 # define aTHXx my_perl 495 # define aTHXx_ aTHXx, 496 # define dTHXx dTHX 497 #endif 498 499 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation) 500 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...). 501 * dTHXs is therefore needed for all functions using PerlIO_foo(). */ 502 #ifdef PERL_IMPLICIT_SYS 503 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 504 # define dTHXs dVAR; dTHX 505 # else 506 # define dTHXs dTHX 507 # endif 508 #else 509 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 510 # define dTHXs dVAR 511 # else 512 # define dTHXs dNOOP 513 # endif 514 #endif 515 516 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus) 517 # ifndef PERL_USE_GCC_BRACE_GROUPS 518 # define PERL_USE_GCC_BRACE_GROUPS 519 # endif 520 #endif 521 522 /* 523 * STMT_START { statements; } STMT_END; 524 * can be used as a single statement, as in 525 * if (x) STMT_START { ... } STMT_END; else ... 526 * 527 * Trying to select a version that gives no warnings... 528 */ 529 #if !(defined(STMT_START) && defined(STMT_END)) 530 # ifdef PERL_USE_GCC_BRACE_GROUPS 531 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */ 532 # define STMT_END ) 533 # else 534 # define STMT_START do 535 # define STMT_END while (0) 536 # endif 537 #endif 538 539 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */ 540 # define BYTEORDER 0x1234 541 #endif 542 543 /* Overall memory policy? */ 544 #ifndef CONSERVATIVE 545 # define LIBERAL 1 546 #endif 547 548 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90 549 #define ASCIIish 550 #else 551 #undef ASCIIish 552 #endif 553 554 /* 555 * The following contortions are brought to you on behalf of all the 556 * standards, semi-standards, de facto standards, not-so-de-facto standards 557 * of the world, as well as all the other botches anyone ever thought of. 558 * The basic theory is that if we work hard enough here, the rest of the 559 * code can be a lot prettier. Well, so much for theory. Sorry, Henry... 560 */ 561 562 /* define this once if either system, instead of cluttering up the src */ 563 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE) 564 #define DOSISH 1 565 #endif 566 567 /* These exist only for back-compat with XS modules. */ 568 #ifndef PERL_CORE 569 #define VOL volatile 570 #define CAN_PROTOTYPE 571 #define _(args) args 572 #define I_LIMITS 573 #define I_STDARG 574 #define STANDARD_C 575 #endif 576 577 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT, 578 * you get a perl without taint support, but doubtlessly with a lesser 579 * degree of support. Do not do so unless you know exactly what it means 580 * technically, have a good reason to do so, and know exactly how the 581 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered 582 * a potential security risk due to flat out ignoring the security-relevant 583 * taint flags. This being said, a perl without taint support compiled in 584 * has marginal run-time performance benefits. 585 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT. 586 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it 587 * silently ignores -t/-T instead of throwing an exception. 588 * 589 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT 590 * voids your nonexistent warranty! 591 */ 592 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT) 593 # define NO_TAINT_SUPPORT 1 594 #endif 595 596 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related 597 * operations into no-ops for a very modest speed-up. Enable only if you 598 * know what you're doing: tests and CPAN modules' tests are bound to fail. 599 */ 600 #ifdef NO_TAINT_SUPPORT 601 # define TAINT NOOP 602 # define TAINT_NOT NOOP 603 # define TAINT_IF(c) NOOP 604 # define TAINT_ENV() NOOP 605 # define TAINT_PROPER(s) NOOP 606 # define TAINT_set(s) NOOP 607 # define TAINT_get 0 608 # define TAINTING_get 0 609 # define TAINTING_set(s) NOOP 610 # define TAINT_WARN_get 0 611 # define TAINT_WARN_set(s) NOOP 612 #else 613 # define TAINT (PL_tainted = PL_tainting) 614 # define TAINT_NOT (PL_tainted = FALSE) 615 # define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = PL_tainting; } 616 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); } 617 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); } 618 # define TAINT_set(s) (PL_tainted = (s)) 619 # define TAINT_get (PL_tainted) 620 # define TAINTING_get (PL_tainting) 621 # define TAINTING_set(s) (PL_tainting = (s)) 622 # define TAINT_WARN_get (PL_taint_warn) 623 # define TAINT_WARN_set(s) (PL_taint_warn = (s)) 624 #endif 625 626 /* flags used internally only within pp_subst and pp_substcont */ 627 #ifdef PERL_CORE 628 # define SUBST_TAINT_STR 1 /* string tainted */ 629 # define SUBST_TAINT_PAT 2 /* pattern tainted */ 630 # define SUBST_TAINT_REPL 4 /* replacement tainted */ 631 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */ 632 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */ 633 #endif 634 635 /* XXX All process group stuff is handled in pp_sys.c. Should these 636 defines move there? If so, I could simplify this a lot. --AD 9/96. 637 */ 638 /* Process group stuff changed from traditional BSD to POSIX. 639 perlfunc.pod documents the traditional BSD-style syntax, so we'll 640 try to preserve that, if possible. 641 */ 642 #ifdef HAS_SETPGID 643 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp)) 644 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP) 645 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp)) 646 #elif defined(HAS_SETPGRP2) 647 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp)) 648 #endif 649 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP) 650 # define HAS_SETPGRP /* Well, effectively it does . . . */ 651 #endif 652 653 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes 654 our life easier :-) so we'll try it. 655 */ 656 #ifdef HAS_GETPGID 657 # define BSD_GETPGRP(pid) getpgid((pid)) 658 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP) 659 # define BSD_GETPGRP(pid) getpgrp((pid)) 660 #elif defined(HAS_GETPGRP2) 661 # define BSD_GETPGRP(pid) getpgrp2((pid)) 662 #endif 663 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP) 664 # define HAS_GETPGRP /* Well, effectively it does . . . */ 665 #endif 666 667 /* These are not exact synonyms, since setpgrp() and getpgrp() may 668 have different behaviors, but perl.h used to define USE_BSDPGRP 669 (prior to 5.003_05) so some extension might depend on it. 670 */ 671 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP) 672 # ifndef USE_BSDPGRP 673 # define USE_BSDPGRP 674 # endif 675 #endif 676 677 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that 678 pthread.h must be included before all other header files. 679 */ 680 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD) 681 # include <pthread.h> 682 #endif 683 684 #include <sys/types.h> 685 686 /* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h 687 which is included from stdarg.h. Bad definition not present in SD 2008 688 SDK headers. wince.h is not yet included, so we cant fix this from there 689 since by then MB_CUR_MAX will be defined from stdlib.h. 690 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here 691 since cewchar.h can't be included this early */ 692 #if defined(UNDER_CE) && (_MSC_VER < 1300) 693 # define MB_CUR_MAX 1uL 694 #endif 695 696 # include <stdarg.h> 697 698 #ifdef I_STDINT 699 # include <stdint.h> 700 #endif 701 702 #include <ctype.h> 703 #include <float.h> 704 #include <limits.h> 705 706 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */ 707 #undef METHOD 708 #endif 709 710 #ifdef PERL_MICRO 711 # define NO_LOCALE 712 #endif 713 714 #ifdef I_LOCALE 715 # include <locale.h> 716 #endif 717 718 #ifdef I_XLOCALE 719 # include <xlocale.h> 720 #endif 721 722 #if !defined(NO_LOCALE) && defined(HAS_SETLOCALE) 723 # define USE_LOCALE 724 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this 725 capability */ 726 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \ 727 && defined(HAS_STRXFRM) 728 # define USE_LOCALE_COLLATE 729 # endif 730 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE) 731 # define USE_LOCALE_CTYPE 732 # endif 733 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC) 734 # define USE_LOCALE_NUMERIC 735 # endif 736 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES) 737 # define USE_LOCALE_MESSAGES 738 # endif 739 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY) 740 # define USE_LOCALE_MONETARY 741 # endif 742 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME) 743 # define USE_LOCALE_TIME 744 # endif 745 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS) 746 # define USE_LOCALE_ADDRESS 747 # endif 748 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION) 749 # define USE_LOCALE_IDENTIFICATION 750 # endif 751 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT) 752 # define USE_LOCALE_MEASUREMENT 753 # endif 754 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER) 755 # define USE_LOCALE_PAPER 756 # endif 757 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE) 758 # define USE_LOCALE_TELEPHONE 759 # endif 760 #endif /* !NO_LOCALE && HAS_SETLOCALE */ 761 762 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and 763 * changes here MUST also be made there */ 764 765 #ifdef USE_LOCALE /* These locale things are all subject to change */ 766 # if defined(HAS_NEWLOCALE) \ 767 && defined(LC_ALL_MASK) \ 768 && defined(HAS_FREELOCALE) \ 769 && defined(HAS_USELOCALE) \ 770 && ! defined(NO_POSIX_2008_LOCALE) 771 772 /* For simplicity, the code is written to assume that any platform advanced 773 * enough to have the Posix 2008 locale functions has LC_ALL. The test 774 * above makes sure that assumption is valid */ 775 776 # define HAS_POSIX_2008_LOCALE 777 # endif 778 # if defined(USE_ITHREADS) \ 779 && ( defined(HAS_POSIX_2008_LOCALE) \ 780 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \ 781 && ! defined(NO_THREAD_SAFE_LOCALE) 782 # define USE_THREAD_SAFE_LOCALE 783 # ifdef HAS_POSIX_2008_LOCALE 784 # define USE_POSIX_2008_LOCALE 785 # endif 786 # endif 787 #endif 788 789 /* Microsoft documentation reads in the change log for VS 2015: 790 * "The localeconv function declared in locale.h now works correctly when 791 * per-thread locale is enabled. In previous versions of the library, this 792 * function would return the lconv data for the global locale, not the 793 * thread's locale." 794 */ 795 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900 796 # define TS_W32_BROKEN_LOCALECONV 797 #endif 798 799 #include <setjmp.h> 800 801 #ifdef I_SYS_PARAM 802 # ifdef PARAM_NEEDS_TYPES 803 # include <sys/types.h> 804 # endif 805 # include <sys/param.h> 806 #endif 807 808 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month 809 value something like 199306. This may be useful if no more-specific 810 feature test is available. 811 */ 812 #if defined(BSD) 813 # ifndef BSDish 814 # define BSDish 815 # endif 816 #endif 817 818 /* Use all the "standard" definitions */ 819 #include <stdlib.h> 820 821 /* If this causes problems, set i_unistd=undef in the hint file. */ 822 #ifdef I_UNISTD 823 # if defined(__amigaos4__) 824 # ifdef I_NETINET_IN 825 # include <netinet/in.h> 826 # endif 827 # endif 828 # include <unistd.h> 829 # if defined(__amigaos4__) 830 /* Under AmigaOS 4 newlib.library provides an environ. However using 831 * it doesn't give us enough control over inheritance of variables by 832 * subshells etc. so replace with custom version based on abc-shell 833 * code. */ 834 extern char **myenviron; 835 # undef environ 836 # define environ myenviron 837 # endif 838 #endif 839 840 /* for WCOREDUMP */ 841 #ifdef I_SYS_WAIT 842 # include <sys/wait.h> 843 #endif 844 845 #ifdef __SYMBIAN32__ 846 # undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */ 847 #endif 848 849 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO) 850 EXTERN_C int syscall(int, ...); 851 #endif 852 853 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO) 854 EXTERN_C int usleep(unsigned int); 855 #endif 856 857 /* macros for correct constant construction. These are in C99 <stdint.h> 858 * (so they will not be available in strict C89 mode), but they are nice, so 859 * let's define them if necessary. */ 860 #ifndef UINT16_C 861 # if INTSIZE >= 2 862 # define UINT16_C(x) ((U16_TYPE)x##U) 863 # else 864 # define UINT16_C(x) ((U16_TYPE)x##UL) 865 # endif 866 #endif 867 868 #ifndef UINT32_C 869 # if INTSIZE >= 4 870 # define UINT32_C(x) ((U32_TYPE)x##U) 871 # else 872 # define UINT32_C(x) ((U32_TYPE)x##UL) 873 # endif 874 #endif 875 876 #ifdef I_STDINT 877 typedef intmax_t PERL_INTMAX_T; 878 typedef uintmax_t PERL_UINTMAX_T; 879 #endif 880 881 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't 882 * actually mean what it has always been documented to mean (see RT #119753) 883 * and is explicitly turned off outside of core with dire warnings about 884 * removing the undef. */ 885 886 #if defined(QUADKIND) 887 # undef PeRl_INT64_C 888 # undef PeRl_UINT64_C 889 /* Prefer the native integer types (int and long) over long long 890 * (which is not C89) and Win32-specific __int64. */ 891 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8 892 # define PeRl_INT64_C(c) (c) 893 # define PeRl_UINT64_C(c) CAT2(c,U) 894 # endif 895 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8 896 # define PeRl_INT64_C(c) CAT2(c,L) 897 # define PeRl_UINT64_C(c) CAT2(c,UL) 898 # endif 899 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG) 900 # define PeRl_INT64_C(c) CAT2(c,LL) 901 # define PeRl_UINT64_C(c) CAT2(c,ULL) 902 # endif 903 # if QUADKIND == QUAD_IS___INT64 904 # define PeRl_INT64_C(c) CAT2(c,I64) 905 # define PeRl_UINT64_C(c) CAT2(c,UI64) 906 # endif 907 # ifndef PeRl_INT64_C 908 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */ 909 # define PeRl_UINT64_C(c) ((U64TYPE)(c)) 910 # endif 911 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will 912 * not fly with C89-pedantic gcc, so let's undefine them first so that 913 * we can redefine them with our native integer preferring versions. */ 914 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC) 915 # undef INT64_C 916 # undef UINT64_C 917 # endif 918 # ifndef INT64_C 919 # define INT64_C(c) PeRl_INT64_C(c) 920 # endif 921 # ifndef UINT64_C 922 # define UINT64_C(c) PeRl_UINT64_C(c) 923 # endif 924 925 # ifndef I_STDINT 926 typedef I64TYPE PERL_INTMAX_T; 927 typedef U64TYPE PERL_UINTMAX_T; 928 # endif 929 # ifndef INTMAX_C 930 # define INTMAX_C(c) INT64_C(c) 931 # endif 932 # ifndef UINTMAX_C 933 # define UINTMAX_C(c) UINT64_C(c) 934 # endif 935 936 #else /* below QUADKIND is undefined */ 937 938 /* Perl doesn't work on 16 bit systems, so must be 32 bit */ 939 # ifndef I_STDINT 940 typedef I32TYPE PERL_INTMAX_T; 941 typedef U32TYPE PERL_UINTMAX_T; 942 # endif 943 # ifndef INTMAX_C 944 # define INTMAX_C(c) INT32_C(c) 945 # endif 946 # ifndef UINTMAX_C 947 # define UINTMAX_C(c) UINT32_C(c) 948 # endif 949 950 #endif /* no QUADKIND */ 951 952 #ifdef PERL_CORE 953 954 /* byte-swapping functions for big-/little-endian conversion */ 955 # define _swab_16_(x) ((U16)( \ 956 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \ 957 (((U16)(x) & UINT16_C(0xff00)) >> 8) )) 958 959 # define _swab_32_(x) ((U32)( \ 960 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \ 961 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \ 962 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \ 963 (((U32)(x) & UINT32_C(0xff000000)) >> 24) )) 964 965 # ifdef HAS_QUAD 966 # define _swab_64_(x) ((U64)( \ 967 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \ 968 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \ 969 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \ 970 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \ 971 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \ 972 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \ 973 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \ 974 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) )) 975 # endif 976 977 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster, 978 at least on FreeBSD. YMMV, so experiment. */ 979 #ifndef PERL_ARENA_SIZE 980 #define PERL_ARENA_SIZE 4080 981 #endif 982 983 /* Maximum level of recursion */ 984 #ifndef PERL_SUB_DEPTH_WARN 985 #define PERL_SUB_DEPTH_WARN 100 986 #endif 987 988 #endif /* PERL_CORE */ 989 990 /* Maximum number of args that may be passed to an OP_MULTICONCAT op. 991 * It determines the size of local arrays in S_maybe_multiconcat() and 992 * pp_multiconcat(). 993 */ 994 #define PERL_MULTICONCAT_MAXARG 64 995 996 /* The indexes of fields of a multiconcat aux struct. 997 * The fixed fields are followed by nargs+1 const segment lengths, 998 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8. 999 */ 1000 1001 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */ 1002 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */ 1003 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */ 1004 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */ 1005 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */ 1006 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */ 1007 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a 1008 multiconcat header */ 1009 1010 /* We no longer default to creating a new SV for GvSV. 1011 Do this before embed. */ 1012 #ifndef PERL_CREATE_GVSV 1013 # ifndef PERL_DONT_CREATE_GVSV 1014 # define PERL_DONT_CREATE_GVSV 1015 # endif 1016 #endif 1017 1018 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) 1019 #define PERL_USES_PL_PIDSTATUS 1020 #endif 1021 1022 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__) 1023 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION 1024 #endif 1025 1026 #define MEM_SIZE Size_t 1027 1028 /* Round all values passed to malloc up, by default to a multiple of 1029 sizeof(size_t) 1030 */ 1031 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM 1032 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size 1033 #endif 1034 1035 /* sv_grow() will expand strings by at least a certain percentage of 1036 the previously *used* length to avoid excessive calls to realloc(). 1037 The default is 25% of the current length. 1038 */ 1039 #ifndef PERL_STRLEN_EXPAND_SHIFT 1040 # define PERL_STRLEN_EXPAND_SHIFT 2 1041 #endif 1042 1043 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably 1044 * onwards) when building Socket.xs, but we can just use a different definition 1045 * for STRUCT_OFFSET instead. */ 1046 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910 1047 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m)) 1048 #else 1049 # include <stddef.h> 1050 # define STRUCT_OFFSET(s,m) offsetof(s,m) 1051 #endif 1052 1053 /* ptrdiff_t is C11, so undef it under pedantic builds */ 1054 #ifdef PERL_GCC_PEDANTIC 1055 # undef HAS_PTRDIFF_T 1056 #endif 1057 1058 #ifndef __SYMBIAN32__ 1059 # include <string.h> 1060 #endif 1061 1062 /* This comes after <stdlib.h> so we don't try to change the standard 1063 * library prototypes; we'll use our own in proto.h instead. */ 1064 1065 #ifdef MYMALLOC 1066 # ifdef PERL_POLLUTE_MALLOC 1067 # ifndef PERL_EXTMALLOC_DEF 1068 # define Perl_malloc malloc 1069 # define Perl_calloc calloc 1070 # define Perl_realloc realloc 1071 # define Perl_mfree free 1072 # endif 1073 # else 1074 # define EMBEDMYMALLOC /* for compatibility */ 1075 # endif 1076 1077 # define safemalloc Perl_malloc 1078 # define safecalloc Perl_calloc 1079 # define saferealloc Perl_realloc 1080 # define safefree Perl_mfree 1081 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \ 1082 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \ 1083 code; \ 1084 } STMT_END 1085 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \ 1086 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch)) 1087 # define panic_write2(s) write(2, s, strlen(s)) 1088 # define CHECK_MALLOC_TAINT(newval) \ 1089 CHECK_MALLOC_TOO_LATE_FOR_( \ 1090 if (newval) { \ 1091 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\ 1092 exit(1); }) 1093 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \ 1094 if (doing_taint(argc,argv,env)) { \ 1095 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \ 1096 }} STMT_END; 1097 #else /* MYMALLOC */ 1098 # define safemalloc safesysmalloc 1099 # define safecalloc safesyscalloc 1100 # define saferealloc safesysrealloc 1101 # define safefree safesysfree 1102 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0) 1103 # define CHECK_MALLOC_TAINT(newval) ((void)0) 1104 # define MALLOC_CHECK_TAINT(argc,argv,env) 1105 #endif /* MYMALLOC */ 1106 1107 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */ 1108 #define TOO_LATE_FOR_(ch,what) Perl_croak(aTHX_ "\"-%c\" is on the #! line, it must also be used on the command line%s", (char)(ch), what) 1109 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "") 1110 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}") 1111 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL) 1112 1113 #ifndef memzero 1114 # define memzero(d,l) memset(d,0,l) 1115 #endif 1116 1117 #ifdef I_NETINET_IN 1118 # include <netinet/in.h> 1119 #endif 1120 1121 #ifdef I_ARPA_INET 1122 # include <arpa/inet.h> 1123 #endif 1124 1125 #ifdef I_SYS_STAT 1126 # include <sys/stat.h> 1127 #endif 1128 1129 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO. 1130 This definition should ideally go into win32/win32.h, but S_IFIFO is 1131 used later here in perl.h before win32/win32.h is being included. */ 1132 #if !defined(S_IFIFO) && defined(_S_IFIFO) 1133 # define S_IFIFO _S_IFIFO 1134 #endif 1135 1136 /* The stat macros for Unisoft System V/88 (and derivatives 1137 like UTekV) are broken, sometimes giving false positives. Undefine 1138 them here and let the code below set them to proper values. 1139 1140 The ghs macro stands for GreenHills Software C-1.8.5 which 1141 is the C compiler for sysV88 and the various derivatives. 1142 This header file bug is corrected in gcc-2.5.8 and later versions. 1143 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */ 1144 1145 #if defined(m88k) && defined(ghs) 1146 # undef S_ISDIR 1147 # undef S_ISCHR 1148 # undef S_ISBLK 1149 # undef S_ISREG 1150 # undef S_ISFIFO 1151 # undef S_ISLNK 1152 #endif 1153 1154 #include <time.h> 1155 1156 #ifdef I_SYS_TIME 1157 # ifdef I_SYS_TIME_KERNEL 1158 # define KERNEL 1159 # endif 1160 # include <sys/time.h> 1161 # ifdef I_SYS_TIME_KERNEL 1162 # undef KERNEL 1163 # endif 1164 #endif 1165 1166 #if defined(HAS_TIMES) && defined(I_SYS_TIMES) 1167 # include <sys/times.h> 1168 #endif 1169 1170 #include <errno.h> 1171 1172 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS) 1173 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */ 1174 #endif 1175 1176 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */ 1177 # include <sys/socket.h> 1178 # if defined(USE_SOCKS) && defined(I_SOCKS) 1179 # if !defined(INCLUDE_PROTOTYPES) 1180 # define INCLUDE_PROTOTYPES /* for <socks.h> */ 1181 # define PERL_SOCKS_NEED_PROTOTYPES 1182 # endif 1183 # include <socks.h> 1184 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */ 1185 # undef INCLUDE_PROTOTYPES 1186 # undef PERL_SOCKS_NEED_PROTOTYPES 1187 # endif 1188 # endif 1189 # ifdef I_NETDB 1190 # ifdef NETWARE 1191 # include<stdio.h> 1192 # endif 1193 # include <netdb.h> 1194 # endif 1195 # ifndef ENOTSOCK 1196 # ifdef I_NET_ERRNO 1197 # include <net/errno.h> 1198 # endif 1199 # endif 1200 #endif 1201 1202 /* sockatmark() is so new (2001) that many places might have it hidden 1203 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required 1204 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */ 1205 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO) 1206 # if defined(__THROW) && defined(__GLIBC__) 1207 int sockatmark(int) __THROW; 1208 # else 1209 int sockatmark(int); 1210 # endif 1211 #endif 1212 1213 #if defined(__osf__) && defined(__cplusplus) && !defined(_XOPEN_SOURCE_EXTENDED) /* Tru64 "cxx" (C++), see hints/dec_osf.sh for why the _XOPEN_SOURCE_EXTENDED cannot be defined. */ 1214 EXTERN_C int fchdir(int); 1215 EXTERN_C int flock(int, int); 1216 EXTERN_C int fseeko(FILE *, off_t, int); 1217 EXTERN_C off_t ftello(FILE *); 1218 #endif 1219 1220 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */ 1221 EXTERN_C char *crypt(const char *, const char *); 1222 #endif 1223 1224 #if defined(__cplusplus) && defined(__CYGWIN__) 1225 EXTERN_C char *crypt(const char *, const char *); 1226 #endif 1227 1228 #ifdef SETERRNO 1229 # undef SETERRNO /* SOCKS might have defined this */ 1230 #endif 1231 1232 #ifdef VMS 1233 # define SETERRNO(errcode,vmserrcode) \ 1234 STMT_START { \ 1235 set_errno(errcode); \ 1236 set_vaxc_errno(vmserrcode); \ 1237 } STMT_END 1238 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno 1239 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno 1240 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno ) 1241 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno) 1242 1243 # define LIB_INVARG LIB$_INVARG 1244 # define RMS_DIR RMS$_DIR 1245 # define RMS_FAC RMS$_FAC 1246 # define RMS_FEX RMS$_FEX 1247 # define RMS_FNF RMS$_FNF 1248 # define RMS_IFI RMS$_IFI 1249 # define RMS_ISI RMS$_ISI 1250 # define RMS_PRV RMS$_PRV 1251 # define SS_ACCVIO SS$_ACCVIO 1252 # define SS_DEVOFFLINE SS$_DEVOFFLINE 1253 # define SS_IVCHAN SS$_IVCHAN 1254 # define SS_NORMAL SS$_NORMAL 1255 # define SS_NOPRIV SS$_NOPRIV 1256 # define SS_BUFFEROVF SS$_BUFFEROVF 1257 #else 1258 # define LIB_INVARG 0 1259 # define RMS_DIR 0 1260 # define RMS_FAC 0 1261 # define RMS_FEX 0 1262 # define RMS_FNF 0 1263 # define RMS_IFI 0 1264 # define RMS_ISI 0 1265 # define RMS_PRV 0 1266 # define SS_ACCVIO 0 1267 # define SS_DEVOFFLINE 0 1268 # define SS_IVCHAN 0 1269 # define SS_NORMAL 0 1270 # define SS_NOPRIV 0 1271 # define SS_BUFFEROVF 0 1272 #endif 1273 1274 #ifdef WIN32 1275 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno 1276 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError() 1277 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() ) 1278 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) ) 1279 #endif 1280 1281 #ifdef OS2 1282 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno 1283 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc 1284 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc ) 1285 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno ) 1286 #endif 1287 1288 #ifndef SETERRNO 1289 # define SETERRNO(errcode,vmserrcode) (errno = (errcode)) 1290 #endif 1291 1292 #ifndef dSAVEDERRNO 1293 # define dSAVEDERRNO int saved_errno 1294 # define dSAVE_ERRNO int saved_errno = errno 1295 # define SAVE_ERRNO (saved_errno = errno) 1296 # define RESTORE_ERRNO (errno = saved_errno) 1297 #endif 1298 1299 #define ERRSV GvSVn(PL_errgv) 1300 1301 /* contains inlined gv_add_by_type */ 1302 #define CLEAR_ERRSV() STMT_START { \ 1303 SV ** const svp = &GvSV(PL_errgv); \ 1304 if (!*svp) { \ 1305 *svp = newSVpvs(""); \ 1306 } else if (SvREADONLY(*svp)) { \ 1307 SvREFCNT_dec_NN(*svp); \ 1308 *svp = newSVpvs(""); \ 1309 } else { \ 1310 SV *const errsv = *svp; \ 1311 SvPVCLEAR(errsv); \ 1312 SvPOK_only(errsv); \ 1313 if (SvMAGICAL(errsv)) { \ 1314 mg_free(errsv); \ 1315 } \ 1316 } \ 1317 } STMT_END 1318 1319 1320 #ifdef PERL_CORE 1321 # define DEFSV (0 + GvSVn(PL_defgv)) 1322 # define DEFSV_set(sv) \ 1323 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv)) 1324 # define SAVE_DEFSV \ 1325 ( \ 1326 save_gp(PL_defgv, 0), \ 1327 GvINTRO_off(PL_defgv), \ 1328 SAVEGENERICSV(GvSV(PL_defgv)), \ 1329 GvSV(PL_defgv) = NULL \ 1330 ) 1331 #else 1332 # define DEFSV GvSVn(PL_defgv) 1333 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv)) 1334 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv)) 1335 #endif 1336 1337 #ifndef errno 1338 extern int errno; /* ANSI allows errno to be an lvalue expr. 1339 * For example in multithreaded environments 1340 * something like this might happen: 1341 * extern int *_errno(void); 1342 * #define errno (*_errno()) */ 1343 #endif 1344 1345 #define UNKNOWN_ERRNO_MSG "(unknown)" 1346 1347 #if VMS 1348 #define Strerror(e) strerror((e), vaxc$errno) 1349 #else 1350 #define Strerror(e) strerror(e) 1351 #endif 1352 1353 #ifdef I_SYS_IOCTL 1354 # ifndef _IOCTL_ 1355 # include <sys/ioctl.h> 1356 # endif 1357 #endif 1358 1359 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000) 1360 # ifdef HAS_SOCKETPAIR 1361 # undef HAS_SOCKETPAIR 1362 # endif 1363 # ifdef I_NDBM 1364 # undef I_NDBM 1365 # endif 1366 #endif 1367 1368 #ifndef HAS_SOCKETPAIR 1369 # ifdef HAS_SOCKET 1370 # define socketpair Perl_my_socketpair 1371 # endif 1372 #endif 1373 1374 #if INTSIZE == 2 1375 # define htoni htons 1376 # define ntohi ntohs 1377 #else 1378 # define htoni htonl 1379 # define ntohi ntohl 1380 #endif 1381 1382 /* Configure already sets Direntry_t */ 1383 #if defined(I_DIRENT) 1384 # include <dirent.h> 1385 #elif defined(I_SYS_NDIR) 1386 # include <sys/ndir.h> 1387 #elif defined(I_SYS_DIR) 1388 # include <sys/dir.h> 1389 #endif 1390 1391 /* 1392 * The following gobbledygook brought to you on behalf of __STDC__. 1393 * (I could just use #ifndef __STDC__, but this is more bulletproof 1394 * in the face of half-implementations.) 1395 */ 1396 1397 #if defined(I_SYSMODE) 1398 #include <sys/mode.h> 1399 #endif 1400 1401 #ifndef S_IFMT 1402 # ifdef _S_IFMT 1403 # define S_IFMT _S_IFMT 1404 # else 1405 # define S_IFMT 0170000 1406 # endif 1407 #endif 1408 1409 #ifndef S_ISDIR 1410 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR) 1411 #endif 1412 1413 #ifndef S_ISCHR 1414 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR) 1415 #endif 1416 1417 #ifndef S_ISBLK 1418 # ifdef S_IFBLK 1419 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK) 1420 # else 1421 # define S_ISBLK(m) (0) 1422 # endif 1423 #endif 1424 1425 #ifndef S_ISREG 1426 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG) 1427 #endif 1428 1429 #ifndef S_ISFIFO 1430 # ifdef S_IFIFO 1431 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO) 1432 # else 1433 # define S_ISFIFO(m) (0) 1434 # endif 1435 #endif 1436 1437 #ifndef S_ISLNK 1438 # ifdef _S_ISLNK 1439 # define S_ISLNK(m) _S_ISLNK(m) 1440 # elif defined(_S_IFLNK) 1441 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK) 1442 # elif defined(S_IFLNK) 1443 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK) 1444 # else 1445 # define S_ISLNK(m) (0) 1446 # endif 1447 #endif 1448 1449 #ifndef S_ISSOCK 1450 # ifdef _S_ISSOCK 1451 # define S_ISSOCK(m) _S_ISSOCK(m) 1452 # elif defined(_S_IFSOCK) 1453 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK) 1454 # elif defined(S_IFSOCK) 1455 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK) 1456 # else 1457 # define S_ISSOCK(m) (0) 1458 # endif 1459 #endif 1460 1461 #ifndef S_IRUSR 1462 # ifdef S_IREAD 1463 # define S_IRUSR S_IREAD 1464 # define S_IWUSR S_IWRITE 1465 # define S_IXUSR S_IEXEC 1466 # else 1467 # define S_IRUSR 0400 1468 # define S_IWUSR 0200 1469 # define S_IXUSR 0100 1470 # endif 1471 #endif 1472 1473 #ifndef S_IRGRP 1474 # ifdef S_IRUSR 1475 # define S_IRGRP (S_IRUSR>>3) 1476 # define S_IWGRP (S_IWUSR>>3) 1477 # define S_IXGRP (S_IXUSR>>3) 1478 # else 1479 # define S_IRGRP 0040 1480 # define S_IWGRP 0020 1481 # define S_IXGRP 0010 1482 # endif 1483 #endif 1484 1485 #ifndef S_IROTH 1486 # ifdef S_IRUSR 1487 # define S_IROTH (S_IRUSR>>6) 1488 # define S_IWOTH (S_IWUSR>>6) 1489 # define S_IXOTH (S_IXUSR>>6) 1490 # else 1491 # define S_IROTH 0040 1492 # define S_IWOTH 0020 1493 # define S_IXOTH 0010 1494 # endif 1495 #endif 1496 1497 #ifndef S_ISUID 1498 # define S_ISUID 04000 1499 #endif 1500 1501 #ifndef S_ISGID 1502 # define S_ISGID 02000 1503 #endif 1504 1505 #ifndef S_IRWXU 1506 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR) 1507 #endif 1508 1509 #ifndef S_IRWXG 1510 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP) 1511 #endif 1512 1513 #ifndef S_IRWXO 1514 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH) 1515 #endif 1516 1517 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h> 1518 * which would get included through <sys/file.h >, but that is 3000 1519 * lines in the future. --jhi */ 1520 1521 #if !defined(S_IREAD) && !defined(__HAIKU__) 1522 # define S_IREAD S_IRUSR 1523 #endif 1524 1525 #if !defined(S_IWRITE) && !defined(__HAIKU__) 1526 # define S_IWRITE S_IWUSR 1527 #endif 1528 1529 #ifndef S_IEXEC 1530 # define S_IEXEC S_IXUSR 1531 #endif 1532 1533 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr) 1534 # define SLOPPYDIVIDE 1535 #endif 1536 1537 #ifdef UV 1538 #undef UV 1539 #endif 1540 1541 /* This used to be conditionally defined based on whether we had a sprintf() 1542 * that correctly returns the string length (as required by C89), but we no 1543 * longer need that. XS modules can (and do) use this name, so it must remain 1544 * a part of the API that's visible to modules. But we no longer document it 1545 * either (because using sprintf() rather than snprintf() is almost always 1546 * a bad idea). */ 1547 #define my_sprintf sprintf 1548 1549 /* 1550 * If we have v?snprintf() and the C99 variadic macros, we can just 1551 * use just the v?snprintf(). It is nice to try to trap the buffer 1552 * overflow, however, so if we are DEBUGGING, and we cannot use the 1553 * gcc statement expressions, then use the function wrappers which try 1554 * to trap the overflow. If we can use the gcc statement expressions, 1555 * we can try that even with the version that uses the C99 variadic 1556 * macros. 1557 */ 1558 1559 /* Note that we do not check against snprintf()/vsnprintf() returning 1560 * negative values because that is non-standard behaviour and we use 1561 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and 1562 * that should be true only if the snprintf()/vsnprintf() are true 1563 * to the standard. */ 1564 1565 #define PERL_SNPRINTF_CHECK(len, max, api) STMT_START { if ((max) > 0 && (Size_t)len > (max)) Perl_croak_nocontext("panic: %s buffer overflow", STRINGIFY(api)); } STMT_END 1566 1567 #ifdef USE_QUADMATH 1568 # define my_snprintf Perl_my_snprintf 1569 # define PERL_MY_SNPRINTF_GUARDED 1570 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC) 1571 # ifdef PERL_USE_GCC_BRACE_GROUPS 1572 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; }) 1573 # define PERL_MY_SNPRINTF_GUARDED 1574 # else 1575 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__) 1576 # endif 1577 #else 1578 # define my_snprintf Perl_my_snprintf 1579 # define PERL_MY_SNPRINTF_GUARDED 1580 #endif 1581 1582 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf() 1583 * dies if called under USE_QUADMATH. */ 1584 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC) 1585 # ifdef PERL_USE_GCC_BRACE_GROUPS 1586 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; }) 1587 # define PERL_MY_VSNPRINTF_GUARDED 1588 # else 1589 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__) 1590 # endif 1591 #else 1592 # define my_vsnprintf Perl_my_vsnprintf 1593 # define PERL_MY_VSNPRINTF_GUARDED 1594 #endif 1595 1596 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD() 1597 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore 1598 * the result of my_snprintf() or my_vsnprintf(). (No, you should not 1599 * completely ignore it: otherwise you cannot know whether your output 1600 * was too long.) 1601 * 1602 * int len = my_sprintf(buf, max, ...); 1603 * PERL_MY_SNPRINTF_POST_GUARD(len, max); 1604 * 1605 * The trick is that in certain platforms [a] the my_sprintf() already 1606 * contains the sanity check, while in certain platforms [b] it needs 1607 * to be done as a separate step. The POST_GUARD is that step-- in [a] 1608 * platforms the POST_GUARD actually does nothing since the check has 1609 * already been done. Watch out for the max being the same in both calls. 1610 * 1611 * If you actually use the snprintf/vsnprintf return value already, 1612 * you assumedly are checking its validity somehow. But you can 1613 * insert the POST_GUARD() also in that case. */ 1614 1615 #ifndef PERL_MY_SNPRINTF_GUARDED 1616 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf) 1617 #else 1618 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len) 1619 #endif 1620 1621 #ifndef PERL_MY_VSNPRINTF_GUARDED 1622 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf) 1623 #else 1624 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len) 1625 #endif 1626 1627 #ifdef HAS_STRLCAT 1628 # define my_strlcat strlcat 1629 #else 1630 # define my_strlcat Perl_my_strlcat 1631 #endif 1632 1633 #if defined(PERL_CORE) || defined(PERL_EXT) 1634 # ifdef HAS_MEMRCHR 1635 # define my_memrchr memrchr 1636 # else 1637 # define my_memrchr S_my_memrchr 1638 # endif 1639 #endif 1640 1641 #ifdef HAS_STRLCPY 1642 # define my_strlcpy strlcpy 1643 #else 1644 # define my_strlcpy Perl_my_strlcpy 1645 #endif 1646 1647 #ifdef HAS_STRNLEN 1648 # define my_strnlen strnlen 1649 #else 1650 # define my_strnlen Perl_my_strnlen 1651 #endif 1652 1653 /* 1654 The IV type is supposed to be long enough to hold any integral 1655 value or a pointer. 1656 --Andy Dougherty August 1996 1657 */ 1658 1659 typedef IVTYPE IV; 1660 typedef UVTYPE UV; 1661 1662 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD) 1663 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX) 1664 # define IV_MAX INT64_MAX 1665 # define IV_MIN INT64_MIN 1666 # define UV_MAX UINT64_MAX 1667 # ifndef UINT64_MIN 1668 # define UINT64_MIN 0 1669 # endif 1670 # define UV_MIN UINT64_MIN 1671 # else 1672 # define IV_MAX PERL_QUAD_MAX 1673 # define IV_MIN PERL_QUAD_MIN 1674 # define UV_MAX PERL_UQUAD_MAX 1675 # define UV_MIN PERL_UQUAD_MIN 1676 # endif 1677 # define IV_IS_QUAD 1678 # define UV_IS_QUAD 1679 #else 1680 # if defined(INT32_MAX) && IVSIZE == 4 1681 # define IV_MAX INT32_MAX 1682 # define IV_MIN INT32_MIN 1683 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */ 1684 # define UV_MAX UINT32_MAX 1685 # else 1686 # define UV_MAX 4294967295U 1687 # endif 1688 # ifndef UINT32_MIN 1689 # define UINT32_MIN 0 1690 # endif 1691 # define UV_MIN UINT32_MIN 1692 # else 1693 # define IV_MAX PERL_LONG_MAX 1694 # define IV_MIN PERL_LONG_MIN 1695 # define UV_MAX PERL_ULONG_MAX 1696 # define UV_MIN PERL_ULONG_MIN 1697 # endif 1698 # if IVSIZE == 8 1699 # define IV_IS_QUAD 1700 # define UV_IS_QUAD 1701 # ifndef HAS_QUAD 1702 # define HAS_QUAD 1703 # endif 1704 # else 1705 # undef IV_IS_QUAD 1706 # undef UV_IS_QUAD 1707 #if !defined(PERL_CORE) || defined(USING_MSVC6) 1708 /* We think that removing this decade-old undef this will cause too much 1709 breakage on CPAN for too little gain. (See RT #119753) 1710 However, we do need HAS_QUAD in the core for use by the drand48 code, 1711 but not for Win32 VC6 because it has poor __int64 support. */ 1712 # undef HAS_QUAD 1713 #endif 1714 # endif 1715 #endif 1716 1717 #define Size_t_MAX (~(Size_t)0) 1718 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1) 1719 1720 #define IV_DIG (BIT_DIGITS(IVSIZE * 8)) 1721 #define UV_DIG (BIT_DIGITS(UVSIZE * 8)) 1722 1723 #ifndef NO_PERL_PRESERVE_IVUV 1724 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */ 1725 #endif 1726 1727 /* 1728 * The macros INT2PTR and NUM2PTR are (despite their names) 1729 * bi-directional: they will convert int/float to or from pointers. 1730 * However the conversion to int/float are named explicitly: 1731 * PTR2IV, PTR2UV, PTR2NV. 1732 * 1733 * For int conversions we do not need two casts if pointers are 1734 * the same size as IV and UV. Otherwise we need an explicit 1735 * cast (PTRV) to avoid compiler warnings. 1736 */ 1737 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE) 1738 # define PTRV UV 1739 # define INT2PTR(any,d) (any)(d) 1740 #elif PTRSIZE == LONGSIZE 1741 # define PTRV unsigned long 1742 # define PTR2ul(p) (unsigned long)(p) 1743 #else 1744 # define PTRV unsigned 1745 #endif 1746 1747 #ifndef INT2PTR 1748 # define INT2PTR(any,d) (any)(PTRV)(d) 1749 #endif 1750 1751 #ifndef PTR2ul 1752 # define PTR2ul(p) INT2PTR(unsigned long,p) 1753 #endif 1754 1755 #define NUM2PTR(any,d) (any)(PTRV)(d) 1756 #define PTR2IV(p) INT2PTR(IV,p) 1757 #define PTR2UV(p) INT2PTR(UV,p) 1758 #define PTR2NV(p) NUM2PTR(NV,p) 1759 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */ 1760 1761 /* According to strict ANSI C89 one cannot freely cast between 1762 * data pointers and function (code) pointers. There are at least 1763 * two ways around this. One (used below) is to do two casts, 1764 * first the other pointer to an (unsigned) integer, and then 1765 * the integer to the other pointer. The other way would be 1766 * to use unions to "overlay" the pointers. For an example of 1767 * the latter technique, see union dirpu in struct xpvio in sv.h. 1768 * The only feasible use is probably temporarily storing 1769 * function pointers in a data pointer (such as a void pointer). */ 1770 1771 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */ 1772 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */ 1773 1774 #ifdef USE_LONG_DOUBLE 1775 # if LONG_DOUBLESIZE == DOUBLESIZE 1776 # define LONG_DOUBLE_EQUALS_DOUBLE 1777 # undef USE_LONG_DOUBLE /* Ouch! */ 1778 # endif 1779 #endif 1780 1781 /* The following is all to get LDBL_DIG, in order to pick a nice 1782 default value for printing floating point numbers in Gconvert. 1783 (see config.h) 1784 */ 1785 #ifndef HAS_LDBL_DIG 1786 # if LONG_DOUBLESIZE == 10 1787 # define LDBL_DIG 18 /* assume IEEE */ 1788 # elif LONG_DOUBLESIZE == 12 1789 # define LDBL_DIG 18 /* gcc? */ 1790 # elif LONG_DOUBLESIZE == 16 1791 # define LDBL_DIG 33 /* assume IEEE */ 1792 # elif LONG_DOUBLESIZE == DOUBLESIZE 1793 # define LDBL_DIG DBL_DIG /* bummer */ 1794 # endif 1795 #endif 1796 1797 typedef NVTYPE NV; 1798 1799 #ifdef I_IEEEFP 1800 # include <ieeefp.h> 1801 #endif 1802 1803 #ifdef USING_MSVC6 1804 /* VC6 has broken NaN semantics: NaN == NaN returns true instead of false, 1805 * and for example NaN < IV_MIN. */ 1806 # define NAN_COMPARE_BROKEN 1807 #endif 1808 #if defined(__DECC) && defined(__osf__) 1809 /* Also Tru64 cc has broken NaN comparisons. */ 1810 # define NAN_COMPARE_BROKEN 1811 #endif 1812 #if defined(__sgi) 1813 # define NAN_COMPARE_BROKEN 1814 #endif 1815 1816 #ifdef USE_LONG_DOUBLE 1817 # ifdef I_SUNMATH 1818 # include <sunmath.h> 1819 # endif 1820 # if defined(LDBL_DIG) 1821 # define NV_DIG LDBL_DIG 1822 # ifdef LDBL_MANT_DIG 1823 # define NV_MANT_DIG LDBL_MANT_DIG 1824 # endif 1825 # ifdef LDBL_MIN 1826 # define NV_MIN LDBL_MIN 1827 # endif 1828 # ifdef LDBL_MAX 1829 # define NV_MAX LDBL_MAX 1830 # endif 1831 # ifdef LDBL_MIN_EXP 1832 # define NV_MIN_EXP LDBL_MIN_EXP 1833 # endif 1834 # ifdef LDBL_MAX_EXP 1835 # define NV_MAX_EXP LDBL_MAX_EXP 1836 # endif 1837 # ifdef LDBL_MIN_10_EXP 1838 # define NV_MIN_10_EXP LDBL_MIN_10_EXP 1839 # endif 1840 # ifdef LDBL_MAX_10_EXP 1841 # define NV_MAX_10_EXP LDBL_MAX_10_EXP 1842 # endif 1843 # ifdef LDBL_EPSILON 1844 # define NV_EPSILON LDBL_EPSILON 1845 # endif 1846 # ifdef LDBL_MAX 1847 # define NV_MAX LDBL_MAX 1848 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */ 1849 # elif defined(HUGE_VALL) 1850 # define NV_MAX HUGE_VALL 1851 # endif 1852 # endif 1853 # if defined(HAS_SQRTL) 1854 # define Perl_acos acosl 1855 # define Perl_asin asinl 1856 # define Perl_atan atanl 1857 # define Perl_atan2 atan2l 1858 # define Perl_ceil ceill 1859 # define Perl_cos cosl 1860 # define Perl_cosh coshl 1861 # define Perl_exp expl 1862 /* no Perl_fabs, but there's PERL_ABS */ 1863 # define Perl_floor floorl 1864 # define Perl_fmod fmodl 1865 # define Perl_log logl 1866 # define Perl_log10 log10l 1867 # define Perl_pow powl 1868 # define Perl_sin sinl 1869 # define Perl_sinh sinhl 1870 # define Perl_sqrt sqrtl 1871 # define Perl_tan tanl 1872 # define Perl_tanh tanhl 1873 # endif 1874 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */ 1875 # ifndef Perl_modf 1876 # ifdef HAS_MODFL 1877 # define Perl_modf(x,y) modfl(x,y) 1878 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no 1879 prototype in <math.h> */ 1880 # ifndef HAS_MODFL_PROTO 1881 EXTERN_C long double modfl(long double, long double *); 1882 # endif 1883 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL) 1884 extern long double Perl_my_modfl(long double x, long double *ip); 1885 # define Perl_modf(x,y) Perl_my_modfl(x,y) 1886 # endif 1887 # endif 1888 # ifndef Perl_frexp 1889 # ifdef HAS_FREXPL 1890 # define Perl_frexp(x,y) frexpl(x,y) 1891 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL) 1892 extern long double Perl_my_frexpl(long double x, int *e); 1893 # define Perl_frexp(x,y) Perl_my_frexpl(x,y) 1894 # endif 1895 # endif 1896 # ifndef Perl_ldexp 1897 # ifdef HAS_LDEXPL 1898 # define Perl_ldexp(x, y) ldexpl(x,y) 1899 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2 1900 # define Perl_ldexp(x,y) scalbnl(x,y) 1901 # endif 1902 # endif 1903 # ifndef Perl_isnan 1904 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99)) 1905 # define Perl_isnan(x) isnanl(x) 1906 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */ 1907 # define Perl_isnan(x) isnan(x) 1908 # endif 1909 # endif 1910 # ifndef Perl_isinf 1911 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99)) 1912 # define Perl_isinf(x) isinfl(x) 1913 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */ 1914 # define Perl_isinf(x) isinf(x) 1915 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN) 1916 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX) 1917 # endif 1918 # endif 1919 # ifndef Perl_isfinite 1920 # define Perl_isfinite(x) Perl_isfinitel(x) 1921 # endif 1922 #elif defined(USE_QUADMATH) && defined(I_QUADMATH) 1923 # include <quadmath.h> 1924 # define NV_DIG FLT128_DIG 1925 # define NV_MANT_DIG FLT128_MANT_DIG 1926 # define NV_MIN FLT128_MIN 1927 # define NV_MAX FLT128_MAX 1928 # define NV_MIN_EXP FLT128_MIN_EXP 1929 # define NV_MAX_EXP FLT128_MAX_EXP 1930 # define NV_EPSILON FLT128_EPSILON 1931 # define NV_MIN_10_EXP FLT128_MIN_10_EXP 1932 # define NV_MAX_10_EXP FLT128_MAX_10_EXP 1933 # define Perl_acos acosq 1934 # define Perl_asin asinq 1935 # define Perl_atan atanq 1936 # define Perl_atan2 atan2q 1937 # define Perl_ceil ceilq 1938 # define Perl_cos cosq 1939 # define Perl_cosh coshq 1940 # define Perl_exp expq 1941 /* no Perl_fabs, but there's PERL_ABS */ 1942 # define Perl_floor floorq 1943 # define Perl_fmod fmodq 1944 # define Perl_log logq 1945 # define Perl_log10 log10q 1946 # define Perl_pow powq 1947 # define Perl_sin sinq 1948 # define Perl_sinh sinhq 1949 # define Perl_sqrt sqrtq 1950 # define Perl_tan tanq 1951 # define Perl_tanh tanhq 1952 # define Perl_modf(x,y) modfq(x,y) 1953 # define Perl_frexp(x,y) frexpq(x,y) 1954 # define Perl_ldexp(x, y) ldexpq(x,y) 1955 # define Perl_isinf(x) isinfq(x) 1956 # define Perl_isnan(x) isnanq(x) 1957 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x)) 1958 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1) 1959 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3) 1960 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4) 1961 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1) 1962 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2) 1963 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0) 1964 #else 1965 # define NV_DIG DBL_DIG 1966 # define NV_MANT_DIG DBL_MANT_DIG 1967 # define NV_MIN DBL_MIN 1968 # define NV_MAX DBL_MAX 1969 # define NV_MIN_EXP DBL_MIN_EXP 1970 # define NV_MAX_EXP DBL_MAX_EXP 1971 # define NV_MIN_10_EXP DBL_MIN_10_EXP 1972 # define NV_MAX_10_EXP DBL_MAX_10_EXP 1973 # define NV_EPSILON DBL_EPSILON 1974 # define NV_MAX DBL_MAX 1975 # define NV_MIN DBL_MIN 1976 1977 /* These math interfaces are C89. */ 1978 # define Perl_acos acos 1979 # define Perl_asin asin 1980 # define Perl_atan atan 1981 # define Perl_atan2 atan2 1982 # define Perl_ceil ceil 1983 # define Perl_cos cos 1984 # define Perl_cosh cosh 1985 # define Perl_exp exp 1986 /* no Perl_fabs, but there's PERL_ABS */ 1987 # define Perl_floor floor 1988 # define Perl_fmod fmod 1989 # define Perl_log log 1990 # define Perl_log10 log10 1991 # define Perl_pow pow 1992 # define Perl_sin sin 1993 # define Perl_sinh sinh 1994 # define Perl_sqrt sqrt 1995 # define Perl_tan tan 1996 # define Perl_tanh tanh 1997 1998 # define Perl_modf(x,y) modf(x,y) 1999 # define Perl_frexp(x,y) frexp(x,y) 2000 # define Perl_ldexp(x,y) ldexp(x,y) 2001 2002 # ifndef Perl_isnan 2003 # ifdef HAS_ISNAN 2004 # define Perl_isnan(x) isnan(x) 2005 # endif 2006 # endif 2007 # ifndef Perl_isinf 2008 # if defined(HAS_ISINF) 2009 # define Perl_isinf(x) isinf(x) 2010 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN) 2011 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX) 2012 # endif 2013 # endif 2014 # ifndef Perl_isfinite 2015 # ifdef HAS_ISFINITE 2016 # define Perl_isfinite(x) isfinite(x) 2017 # elif defined(HAS_FINITE) 2018 # define Perl_isfinite(x) finite(x) 2019 # endif 2020 # endif 2021 #endif 2022 2023 /* fpclassify(): C99. It is supposed to be a macro that switches on 2024 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/ 2025 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY) 2026 # include <math.h> 2027 # if defined(FP_INFINITE) && defined(FP_NAN) 2028 # define Perl_fp_class(x) fpclassify(x) 2029 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE) 2030 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN) 2031 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL) 2032 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL) 2033 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO) 2034 # elif defined(FP_PLUS_INF) && defined(FP_QNAN) 2035 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is 2036 * actually not the C99 fpclassify, with its own set of return defines. */ 2037 # define Perl_fp_class(x) fpclassify(x) 2038 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF) 2039 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF) 2040 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2041 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2042 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM) 2043 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM) 2044 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM) 2045 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM) 2046 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO) 2047 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO) 2048 # else 2049 # undef Perl_fp_class /* Unknown set of defines */ 2050 # endif 2051 #endif 2052 2053 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however, 2054 * are identical to the C99 fpclassify(). */ 2055 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY) 2056 # include <math.h> 2057 # ifdef __VMS 2058 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */ 2059 # include <fp.h> 2060 /* oh, and the isnormal macro has a typo in it! */ 2061 # undef isnormal 2062 # define isnormal(x) Perl_fp_class_norm(x) 2063 # endif 2064 # if defined(FP_INFINITE) && defined(FP_NAN) 2065 # define Perl_fp_class(x) fp_classify(x) 2066 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE) 2067 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN) 2068 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL) 2069 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL) 2070 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO) 2071 # else 2072 # undef Perl_fp_class /* Unknown set of defines */ 2073 # endif 2074 #endif 2075 2076 /* Feel free to check with me for the SGI manpages, SGI testing, 2077 * etcetera, if you want to try getting this to work with IRIX. 2078 * 2079 * - Allen <allens@cpan.org> */ 2080 2081 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */ 2082 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL)) 2083 /* Solaris and IRIX have fpclass/fpclassl, but they are using 2084 * an enum typedef, not cpp symbols, and Configure doesn't detect that. 2085 * Define some symbols also as cpp symbols so we can detect them. */ 2086 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */ 2087 # define FP_PINF FP_PINF 2088 # define FP_QNAN FP_QNAN 2089 # endif 2090 # include <math.h> 2091 # ifdef I_IEEFP 2092 # include <ieeefp.h> 2093 # endif 2094 # ifdef I_FP 2095 # include <fp.h> 2096 # endif 2097 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL) 2098 # define Perl_fp_class(x) fpclassl(x) 2099 # else 2100 # define Perl_fp_class(x) fpclass(x) 2101 # endif 2102 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN) 2103 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN) 2104 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN) 2105 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF) 2106 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF) 2107 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM) 2108 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM) 2109 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM) 2110 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM) 2111 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO) 2112 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO) 2113 # elif defined(FP_PINF) && defined(FP_QNAN) 2114 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2115 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2116 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF) 2117 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF) 2118 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM) 2119 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM) 2120 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM) 2121 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM) 2122 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO) 2123 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO) 2124 # else 2125 # undef Perl_fp_class /* Unknown set of defines */ 2126 # endif 2127 #endif 2128 2129 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */ 2130 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL)) 2131 # include <math.h> 2132 # if !defined(FP_SNAN) && defined(I_FP_CLASS) 2133 # include <fp_class.h> 2134 # endif 2135 # if defined(FP_POS_INF) && defined(FP_QNAN) 2136 # ifdef __sgi /* XXX Configure test instead */ 2137 # ifdef USE_LONG_DOUBLE 2138 # define Perl_fp_class(x) fp_class_l(x) 2139 # else 2140 # define Perl_fp_class(x) fp_class_d(x) 2141 # endif 2142 # else 2143 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL) 2144 # define Perl_fp_class(x) fp_classl(x) 2145 # else 2146 # define Perl_fp_class(x) fp_class(x) 2147 # endif 2148 # endif 2149 # if defined(FP_POS_INF) && defined(FP_QNAN) 2150 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2151 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2152 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF) 2153 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF) 2154 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM) 2155 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM) 2156 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM) 2157 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM) 2158 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO) 2159 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO) 2160 # else 2161 # undef Perl_fp_class /* Unknown set of defines */ 2162 # endif 2163 # endif 2164 #endif 2165 2166 /* class(), _class(): Legacy: AIX. */ 2167 #if !defined(Perl_fp_class) && defined(HAS_CLASS) 2168 # include <math.h> 2169 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF) 2170 # ifndef _cplusplus 2171 # define Perl_fp_class(x) class(x) 2172 # else 2173 # define Perl_fp_class(x) _class(x) 2174 # endif 2175 # if defined(FP_PLUS_INF) && defined(FP_NANQ) 2176 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS) 2177 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ) 2178 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF) 2179 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF) 2180 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM) 2181 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM) 2182 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM) 2183 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM) 2184 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO) 2185 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO) 2186 # else 2187 # undef Perl_fp_class /* Unknown set of defines */ 2188 # endif 2189 # endif 2190 #endif 2191 2192 /* Win32: _fpclass(), _isnan(), _finite(). */ 2193 #ifdef WIN32 2194 # ifndef Perl_isnan 2195 # define Perl_isnan(x) _isnan(x) 2196 # endif 2197 # ifndef Perl_isfinite 2198 # define Perl_isfinite(x) _finite(x) 2199 # endif 2200 # ifndef Perl_fp_class_snan 2201 /* No simple way to #define Perl_fp_class because _fpclass() 2202 * returns a set of bits. */ 2203 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN) 2204 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN) 2205 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN)) 2206 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF)) 2207 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF)) 2208 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF)) 2209 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN) 2210 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN) 2211 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN)) 2212 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND) 2213 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD) 2214 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD)) 2215 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ) 2216 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ) 2217 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ)) 2218 # endif 2219 #endif 2220 2221 #if !defined(Perl_fp_class_inf) && \ 2222 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf) 2223 # define Perl_fp_class_inf(x) \ 2224 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x)) 2225 #endif 2226 2227 #if !defined(Perl_fp_class_nan) && \ 2228 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan) 2229 # define Perl_fp_class_nan(x) \ 2230 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x)) 2231 #endif 2232 2233 #if !defined(Perl_fp_class_zero) && \ 2234 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero) 2235 # define Perl_fp_class_zero(x) \ 2236 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x)) 2237 #endif 2238 2239 #if !defined(Perl_fp_class_norm) && \ 2240 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm) 2241 # define Perl_fp_class_norm(x) \ 2242 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x)) 2243 #endif 2244 2245 #if !defined(Perl_fp_class_denorm) && \ 2246 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm) 2247 # define Perl_fp_class_denorm(x) \ 2248 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x)) 2249 #endif 2250 2251 #ifdef UNDER_CE 2252 int isnan(double d); 2253 #endif 2254 2255 #ifndef Perl_isnan 2256 # ifdef Perl_fp_class_nan 2257 # define Perl_isnan(x) Perl_fp_class_nan(x) 2258 # elif defined(HAS_UNORDERED) 2259 # define Perl_isnan(x) unordered((x), 0.0) 2260 # else 2261 # define Perl_isnan(x) ((x)!=(x)) 2262 # endif 2263 #endif 2264 2265 #ifndef Perl_isinf 2266 # ifdef Perl_fp_class_inf 2267 # define Perl_isinf(x) Perl_fp_class_inf(x) 2268 # endif 2269 #endif 2270 2271 #ifndef Perl_isfinite 2272 # if defined(HAS_ISFINITE) && !defined(isfinite) 2273 # define Perl_isfinite(x) isfinite((double)(x)) 2274 # elif defined(HAS_FINITE) 2275 # define Perl_isfinite(x) finite((double)(x)) 2276 # elif defined(Perl_fp_class_finite) 2277 # define Perl_isfinite(x) Perl_fp_class_finite(x) 2278 # else 2279 /* For the infinities the multiplication returns nan, 2280 * for the nan the multiplication also returns nan, 2281 * for everything else (that is, finite) zero should be returned. */ 2282 # define Perl_isfinite(x) (((x) * 0) == 0) 2283 # endif 2284 #endif 2285 2286 #ifndef Perl_isinf 2287 # if defined(Perl_isfinite) && defined(Perl_isnan) 2288 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x)) 2289 # endif 2290 #endif 2291 2292 /* We need Perl_isfinitel (ends with ell) (if available) even when 2293 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags) 2294 * needs that. */ 2295 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel) 2296 /* If isfinite() is a macro and looks like we have C99, 2297 * we assume it's the type-aware C99 isfinite(). */ 2298 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99) 2299 # define Perl_isfinitel(x) isfinite(x) 2300 # elif defined(HAS_ISFINITEL) 2301 # define Perl_isfinitel(x) isfinitel(x) 2302 # elif defined(HAS_FINITEL) 2303 # define Perl_isfinitel(x) finitel(x) 2304 # elif defined(HAS_INFL) && defined(HAS_NANL) 2305 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x)) 2306 # else 2307 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */ 2308 # endif 2309 #endif 2310 2311 /* The default is to use Perl's own atof() implementation (in numeric.c). 2312 * Usually that is the one to use but for some platforms (e.g. UNICOS) 2313 * it is however best to use the native implementation of atof. 2314 * You can experiment with using your native one by -DUSE_PERL_ATOF=0. 2315 * Some good tests to try out with either setting are t/base/num.t, 2316 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles 2317 * you may need to be using a different function than atof! */ 2318 2319 #ifndef USE_PERL_ATOF 2320 # ifndef _UNICOS 2321 # define USE_PERL_ATOF 2322 # endif 2323 #else 2324 # if USE_PERL_ATOF == 0 2325 # undef USE_PERL_ATOF 2326 # endif 2327 #endif 2328 2329 #ifdef USE_PERL_ATOF 2330 # define Perl_atof(s) Perl_my_atof(s) 2331 # define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n)) 2332 #else 2333 # define Perl_atof(s) (NV)atof(s) 2334 # define Perl_atof2(s, n) ((n) = atof(s)) 2335 #endif 2336 2337 /* 2338 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be 2339 * ambiguous. It may be equivalent to (signed char) or (unsigned char) 2340 * depending on local options. Until Configure detects this (or at least 2341 * detects whether the "signed" keyword is available) the CHAR ranges 2342 * will not be included. UCHAR functions normally. 2343 * - kja 2344 */ 2345 2346 #define PERL_UCHAR_MIN ((unsigned char)0) 2347 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX) 2348 2349 #define PERL_USHORT_MIN ((unsigned short)0) 2350 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX) 2351 2352 #define PERL_SHORT_MAX ((short)SHRT_MAX) 2353 #define PERL_SHORT_MIN ((short)SHRT_MIN) 2354 2355 #define PERL_UINT_MAX ((unsigned int)UINT_MAX) 2356 #define PERL_UINT_MIN ((unsigned int)0) 2357 2358 #define PERL_INT_MAX ((int)INT_MAX) 2359 #define PERL_INT_MIN ((int)INT_MIN) 2360 2361 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX) 2362 #define PERL_ULONG_MIN ((unsigned long)0L) 2363 2364 #define PERL_LONG_MAX ((long)LONG_MAX) 2365 #define PERL_LONG_MIN ((long)LONG_MIN) 2366 2367 #ifdef UV_IS_QUAD 2368 # define PERL_UQUAD_MAX (~(UV)0) 2369 # define PERL_UQUAD_MIN ((UV)0) 2370 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1)) 2371 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3)) 2372 #endif 2373 2374 typedef MEM_SIZE STRLEN; 2375 2376 typedef struct op OP; 2377 typedef struct cop COP; 2378 typedef struct unop UNOP; 2379 typedef struct unop_aux UNOP_AUX; 2380 typedef struct binop BINOP; 2381 typedef struct listop LISTOP; 2382 typedef struct logop LOGOP; 2383 typedef struct pmop PMOP; 2384 typedef struct svop SVOP; 2385 typedef struct padop PADOP; 2386 typedef struct pvop PVOP; 2387 typedef struct loop LOOP; 2388 typedef struct methop METHOP; 2389 2390 #ifdef PERL_CORE 2391 typedef struct opslab OPSLAB; 2392 typedef struct opslot OPSLOT; 2393 #endif 2394 2395 typedef struct block_hooks BHK; 2396 typedef struct custom_op XOP; 2397 2398 typedef struct interpreter PerlInterpreter; 2399 2400 /* SGI's <sys/sema.h> has struct sv */ 2401 #if defined(__sgi) 2402 # define STRUCT_SV perl_sv 2403 #else 2404 # define STRUCT_SV sv 2405 #endif 2406 typedef struct STRUCT_SV SV; 2407 typedef struct av AV; 2408 typedef struct hv HV; 2409 typedef struct cv CV; 2410 typedef struct p5rx REGEXP; 2411 typedef struct gp GP; 2412 typedef struct gv GV; 2413 typedef struct io IO; 2414 typedef struct context PERL_CONTEXT; 2415 typedef struct block BLOCK; 2416 2417 typedef struct magic MAGIC; 2418 typedef struct xpv XPV; 2419 typedef struct xpviv XPVIV; 2420 typedef struct xpvuv XPVUV; 2421 typedef struct xpvnv XPVNV; 2422 typedef struct xpvmg XPVMG; 2423 typedef struct xpvlv XPVLV; 2424 typedef struct xpvinvlist XINVLIST; 2425 typedef struct xpvav XPVAV; 2426 typedef struct xpvhv XPVHV; 2427 typedef struct xpvgv XPVGV; 2428 typedef struct xpvcv XPVCV; 2429 typedef struct xpvbm XPVBM; 2430 typedef struct xpvfm XPVFM; 2431 typedef struct xpvio XPVIO; 2432 typedef struct mgvtbl MGVTBL; 2433 typedef union any ANY; 2434 typedef struct ptr_tbl_ent PTR_TBL_ENT_t; 2435 typedef struct ptr_tbl PTR_TBL_t; 2436 typedef struct clone_params CLONE_PARAMS; 2437 2438 /* a pad is currently just an AV; but that might change, 2439 * so hide the type. */ 2440 typedef struct padlist PADLIST; 2441 typedef AV PAD; 2442 typedef struct padnamelist PADNAMELIST; 2443 typedef struct padname PADNAME; 2444 2445 /* always enable PERL_OP_PARENT */ 2446 #if !defined(PERL_OP_PARENT) 2447 # define PERL_OP_PARENT 2448 #endif 2449 2450 /* enable PERL_COPY_ON_WRITE by default */ 2451 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW) 2452 # define PERL_COPY_ON_WRITE 2453 #endif 2454 2455 #ifdef PERL_COPY_ON_WRITE 2456 # define PERL_ANY_COW 2457 #else 2458 # define PERL_SAWAMPERSAND 2459 #endif 2460 2461 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS) 2462 # error PERL_DEBUG_READONLY_OPS only works with ithreads 2463 #endif 2464 2465 #include "handy.h" 2466 #include "charclass_invlists.h" 2467 2468 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO) 2469 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO) 2470 # define USE_64_BIT_RAWIO /* implicit */ 2471 # endif 2472 #endif 2473 2474 /* Notice the use of HAS_FSEEKO: now we are obligated to always use 2475 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself, 2476 * however, because operating systems like to do that themself. */ 2477 #ifndef FSEEKSIZE 2478 # ifdef HAS_FSEEKO 2479 # define FSEEKSIZE LSEEKSIZE 2480 # else 2481 # define FSEEKSIZE LONGSIZE 2482 # endif 2483 #endif 2484 2485 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO) 2486 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO) 2487 # define USE_64_BIT_STDIO /* implicit */ 2488 # endif 2489 #endif 2490 2491 #ifdef USE_64_BIT_RAWIO 2492 # ifdef HAS_OFF64_T 2493 # undef Off_t 2494 # define Off_t off64_t 2495 # undef LSEEKSIZE 2496 # define LSEEKSIZE 8 2497 # endif 2498 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that 2499 * will trigger defines like the ones below. Some 64-bit environments, 2500 * however, do not. Therefore we have to explicitly mix and match. */ 2501 # if defined(USE_OPEN64) 2502 # define open open64 2503 # endif 2504 # if defined(USE_LSEEK64) 2505 # define lseek lseek64 2506 # else 2507 # if defined(USE_LLSEEK) 2508 # define lseek llseek 2509 # endif 2510 # endif 2511 # if defined(USE_STAT64) 2512 # define stat stat64 2513 # endif 2514 # if defined(USE_FSTAT64) 2515 # define fstat fstat64 2516 # endif 2517 # if defined(USE_LSTAT64) 2518 # define lstat lstat64 2519 # endif 2520 # if defined(USE_FLOCK64) 2521 # define flock flock64 2522 # endif 2523 # if defined(USE_LOCKF64) 2524 # define lockf lockf64 2525 # endif 2526 # if defined(USE_FCNTL64) 2527 # define fcntl fcntl64 2528 # endif 2529 # if defined(USE_TRUNCATE64) 2530 # define truncate truncate64 2531 # endif 2532 # if defined(USE_FTRUNCATE64) 2533 # define ftruncate ftruncate64 2534 # endif 2535 #endif 2536 2537 #ifdef USE_64_BIT_STDIO 2538 # ifdef HAS_FPOS64_T 2539 # undef Fpos_t 2540 # define Fpos_t fpos64_t 2541 # endif 2542 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that 2543 * will trigger defines like the ones below. Some 64-bit environments, 2544 * however, do not. */ 2545 # if defined(USE_FOPEN64) 2546 # define fopen fopen64 2547 # endif 2548 # if defined(USE_FSEEK64) 2549 # define fseek fseek64 /* don't do fseeko here, see perlio.c */ 2550 # endif 2551 # if defined(USE_FTELL64) 2552 # define ftell ftell64 /* don't do ftello here, see perlio.c */ 2553 # endif 2554 # if defined(USE_FSETPOS64) 2555 # define fsetpos fsetpos64 2556 # endif 2557 # if defined(USE_FGETPOS64) 2558 # define fgetpos fgetpos64 2559 # endif 2560 # if defined(USE_TMPFILE64) 2561 # define tmpfile tmpfile64 2562 # endif 2563 # if defined(USE_FREOPEN64) 2564 # define freopen freopen64 2565 # endif 2566 #endif 2567 2568 #if defined(OS2) 2569 # include "iperlsys.h" 2570 #endif 2571 2572 #ifdef DOSISH 2573 # if defined(OS2) 2574 # include "os2ish.h" 2575 # else 2576 # include "dosish.h" 2577 # endif 2578 #elif defined(VMS) 2579 # include "vmsish.h" 2580 #elif defined(PLAN9) 2581 # include "./plan9/plan9ish.h" 2582 #elif defined(__VOS__) 2583 # ifdef __GNUC__ 2584 # include "./vos/vosish.h" 2585 # else 2586 # include "vos/vosish.h" 2587 # endif 2588 #elif defined(__SYMBIAN32__) 2589 # include "symbian/symbianish.h" 2590 #elif defined(__HAIKU__) 2591 # include "haiku/haikuish.h" 2592 #else 2593 # include "unixish.h" 2594 #endif 2595 2596 #ifdef __amigaos4__ 2597 # include "amigaos.h" 2598 # undef FD_CLOEXEC /* a lie in AmigaOS */ 2599 #endif 2600 2601 /* NSIG logic from Configure --> */ 2602 #ifndef NSIG 2603 # ifdef _NSIG 2604 # define NSIG (_NSIG) 2605 # elif defined(SIGMAX) 2606 # define NSIG (SIGMAX+1) 2607 # elif defined(SIG_MAX) 2608 # define NSIG (SIG_MAX+1) 2609 # elif defined(_SIG_MAX) 2610 # define NSIG (_SIG_MAX+1) 2611 # elif defined(MAXSIG) 2612 # define NSIG (MAXSIG+1) 2613 # elif defined(MAX_SIG) 2614 # define NSIG (MAX_SIG+1) 2615 # elif defined(SIGARRAYSIZE) 2616 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 2617 # elif defined(_sys_nsig) 2618 # define NSIG (_sys_nsig) /* Solaris 2.5 */ 2619 # else 2620 /* Default to some arbitrary number that's big enough to get most 2621 * of the common signals. */ 2622 # define NSIG 50 2623 # endif 2624 #endif 2625 /* <-- NSIG logic from Configure */ 2626 2627 #ifndef NO_ENVIRON_ARRAY 2628 # define USE_ENVIRON_ARRAY 2629 #endif 2630 2631 /* 2632 * initialise to avoid floating-point exceptions from overflow, etc 2633 */ 2634 #ifndef PERL_FPU_INIT 2635 # ifdef HAS_FPSETMASK 2636 # if HAS_FLOATINGPOINT_H 2637 # include <floatingpoint.h> 2638 # endif 2639 /* Some operating systems have this as a macro, which in turn expands to a comma 2640 expression, and the last sub-expression is something that gets calculated, 2641 and then they have the gall to warn that a value computed is not used. Hence 2642 cast to void. */ 2643 # define PERL_FPU_INIT (void)fpsetmask(0) 2644 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO) 2645 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN) 2646 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe); 2647 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); } 2648 # else 2649 # define PERL_FPU_INIT 2650 # endif 2651 #endif 2652 #ifndef PERL_FPU_PRE_EXEC 2653 # define PERL_FPU_PRE_EXEC { 2654 # define PERL_FPU_POST_EXEC } 2655 #endif 2656 2657 /* In Tru64 the cc -ieee enables the IEEE math but disables traps. 2658 * We need to reenable the "invalid" trap because otherwise generation 2659 * of NaN values leaves the IEEE fp flags in bad state, leaving any further 2660 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */ 2661 #ifdef __osf__ 2662 # include <machine/fpu.h> 2663 # define PERL_SYS_FPU_INIT \ 2664 STMT_START { \ 2665 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \ 2666 signal(SIGFPE, SIG_IGN); \ 2667 } STMT_END 2668 #endif 2669 /* In IRIX the default for Flush to Zero bit is true, 2670 * which means that results going below the minimum of normal 2671 * floating points go to zero, instead of going denormal/subnormal. 2672 * This is unlike almost any other system running Perl, so let's clear it. 2673 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally 2674 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits 2675 * 2676 * XXX The flush-to-zero behaviour should be a Configure scan. 2677 * To change the behaviour usually requires some system-specific 2678 * incantation, though, like the below. */ 2679 #ifdef __sgi 2680 # include <sys/fpu.h> 2681 # define PERL_SYS_FPU_INIT \ 2682 STMT_START { \ 2683 union fpc_csr csr; \ 2684 csr.fc_word = get_fpc_csr(); \ 2685 csr.fc_struct.flush = 0; \ 2686 set_fpc_csr(csr.fc_word); \ 2687 } STMT_END 2688 #endif 2689 2690 #ifndef PERL_SYS_FPU_INIT 2691 # define PERL_SYS_FPU_INIT NOOP 2692 #endif 2693 2694 #ifndef PERL_SYS_INIT3_BODY 2695 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp) 2696 #endif 2697 2698 /* 2699 =head1 Miscellaneous Functions 2700 2701 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv 2702 Provides system-specific tune up of the C runtime environment necessary to 2703 run Perl interpreters. This should be called only once, before creating 2704 any Perl interpreters. 2705 2706 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env 2707 Provides system-specific tune up of the C runtime environment necessary to 2708 run Perl interpreters. This should be called only once, before creating 2709 any Perl interpreters. 2710 2711 =for apidoc Am|void|PERL_SYS_TERM| 2712 Provides system-specific clean up of the C runtime environment after 2713 running Perl interpreters. This should be called only once, after 2714 freeing any remaining Perl interpreters. 2715 2716 =cut 2717 */ 2718 2719 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv) 2720 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env) 2721 #define PERL_SYS_TERM() Perl_sys_term() 2722 2723 #ifndef PERL_WRITE_MSG_TO_CONSOLE 2724 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len) 2725 #endif 2726 2727 #ifndef MAXPATHLEN 2728 # ifdef PATH_MAX 2729 # ifdef _POSIX_PATH_MAX 2730 # if PATH_MAX > _POSIX_PATH_MAX 2731 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX 2732 * included the null byte or not. Later amendments of POSIX, 2733 * XPG4, the Austin Group, and the Single UNIX Specification 2734 * all explicitly include the null byte in the PATH_MAX. 2735 * Ditto for _POSIX_PATH_MAX. */ 2736 # define MAXPATHLEN PATH_MAX 2737 # else 2738 # define MAXPATHLEN _POSIX_PATH_MAX 2739 # endif 2740 # else 2741 # define MAXPATHLEN (PATH_MAX+1) 2742 # endif 2743 # else 2744 # define MAXPATHLEN 1024 /* Err on the large side. */ 2745 # endif 2746 #endif 2747 2748 /* In case Configure was not used (we are using a "canned config" 2749 * such as Win32, or a cross-compilation setup, for example) try going 2750 * by the gcc major and minor versions. One useful URL is 2751 * http://www.ohse.de/uwe/articles/gcc-attributes.html, 2752 * but contrary to this information warn_unused_result seems 2753 * not to be in gcc 3.3.5, at least. --jhi 2754 * Also, when building extensions with an installed perl, this allows 2755 * the user to upgrade gcc and get the right attributes, rather than 2756 * relying on the list generated at Configure time. --AD 2757 * Set these up now otherwise we get confused when some of the <*thread.h> 2758 * includes below indirectly pull in <perlio.h> (which needs to know if we 2759 * have HASATTRIBUTE_FORMAT). 2760 */ 2761 2762 #ifndef PERL_MICRO 2763 #if defined __GNUC__ && !defined(__INTEL_COMPILER) 2764 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */ 2765 # define HASATTRIBUTE_DEPRECATED 2766 # endif 2767 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */ 2768 # define HASATTRIBUTE_FORMAT 2769 # if defined __MINGW32__ 2770 # define PRINTF_FORMAT_NULL_OK 2771 # endif 2772 # endif 2773 # if __GNUC__ >= 3 /* 3.0 -> */ 2774 # define HASATTRIBUTE_MALLOC 2775 # endif 2776 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */ 2777 # define HASATTRIBUTE_NONNULL 2778 # endif 2779 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */ 2780 # define HASATTRIBUTE_NORETURN 2781 # endif 2782 # if __GNUC__ >= 3 /* gcc 3.0 -> */ 2783 # define HASATTRIBUTE_PURE 2784 # endif 2785 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */ 2786 # define HASATTRIBUTE_UNUSED 2787 # endif 2788 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus) 2789 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */ 2790 # endif 2791 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */ 2792 # define HASATTRIBUTE_WARN_UNUSED_RESULT 2793 # endif 2794 #endif 2795 #endif /* #ifndef PERL_MICRO */ 2796 2797 /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes 2798 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h> 2799 * this results in many functions being undeclared which bothers C++ 2800 * May make sense to have threads after "*ish.h" anyway 2801 */ 2802 2803 /* clang Thread Safety Analysis/Annotations/Attributes 2804 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html 2805 * 2806 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5). 2807 * Apple XCode hijacks __clang_major__ and __clang_minor__ 2808 * (6.1 means really clang 3.6), so needs extra hijinks 2809 * (could probably also test the contents of __apple_build_version__). 2810 */ 2811 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \ 2812 defined(__clang__) && \ 2813 !defined(PERL_GLOBAL_STRUCT) && \ 2814 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \ 2815 !defined(SWIG) && \ 2816 ((!defined(__apple_build_version__) && \ 2817 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \ 2818 (__clang_major__ >= 4))) || \ 2819 (defined(__apple_build_version__) && \ 2820 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \ 2821 (__clang_major__ >= 7)))) 2822 # define PERL_TSA__(x) __attribute__((x)) 2823 # define PERL_TSA_ACTIVE 2824 #else 2825 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */ 2826 # undef PERL_TSA_ACTIVE 2827 #endif 2828 2829 /* PERL_TSA_CAPABILITY() is used to annotate typedefs. 2830 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type; 2831 */ 2832 #define PERL_TSA_CAPABILITY(x) \ 2833 PERL_TSA__(capability(x)) 2834 2835 /* In the below examples the mutex must be lexically visible, usually 2836 * either as global variables, or as function arguments. */ 2837 2838 /* PERL_TSA_GUARDED_BY() is used to annotate global variables. 2839 * 2840 * Foo foo PERL_TSA_GUARDED_BY(mutex); 2841 */ 2842 #define PERL_TSA_GUARDED_BY(x) \ 2843 PERL_TSA__(guarded_by(x)) 2844 2845 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers. 2846 * The data _behind_ the pointer is guarded. 2847 * 2848 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex); 2849 */ 2850 #define PERL_TSA_PT_GUARDED_BY(x) \ 2851 PERL_TSA__(pt_guarded_by(x)) 2852 2853 /* PERL_TSA_REQUIRES() is used to annotate functions. 2854 * The caller MUST hold the resource when calling the function. 2855 * 2856 * void Foo() PERL_TSA_REQUIRES(mutex); 2857 */ 2858 #define PERL_TSA_REQUIRES(x) \ 2859 PERL_TSA__(requires_capability(x)) 2860 2861 /* PERL_TSA_EXCLUDES() is used to annotate functions. 2862 * The caller MUST NOT hold resource when calling the function. 2863 * 2864 * EXCLUDES should be used when the function first acquires 2865 * the resource and then releases it. Use to avoid deadlock. 2866 * 2867 * void Foo() PERL_TSA_EXCLUDES(mutex); 2868 */ 2869 #define PERL_TSA_EXCLUDES(x) \ 2870 PERL_TSA__(locks_excluded(x)) 2871 2872 /* PERL_TSA_ACQUIRE() is used to annotate functions. 2873 * The caller MUST NOT hold the resource when calling the function, 2874 * and the function will acquire the resource. 2875 * 2876 * void Foo() PERL_TSA_ACQUIRE(mutex); 2877 */ 2878 #define PERL_TSA_ACQUIRE(x) \ 2879 PERL_TSA__(acquire_capability(x)) 2880 2881 /* PERL_TSA_RELEASE() is used to annotate functions. 2882 * The caller MUST hold the resource when calling the function, 2883 * and the function will release the resource. 2884 * 2885 * void Foo() PERL_TSA_RELEASE(mutex); 2886 */ 2887 #define PERL_TSA_RELEASE(x) \ 2888 PERL_TSA__(release_capability(x)) 2889 2890 /* PERL_TSA_NO_TSA is used to annotate functions. 2891 * Used when being intentionally unsafe, or when the code is too 2892 * complicated for the analysis. Use sparingly. 2893 * 2894 * void Foo() PERL_TSA_NO_TSA; 2895 */ 2896 #define PERL_TSA_NO_TSA \ 2897 PERL_TSA__(no_thread_safety_analysis) 2898 2899 /* There are more annotations/attributes available, see the clang 2900 * documentation for details. */ 2901 2902 #if defined(USE_ITHREADS) 2903 # ifdef NETWARE 2904 # include <nw5thread.h> 2905 # elif defined(WIN32) 2906 # include <win32thread.h> 2907 # elif defined(OS2) 2908 # include "os2thread.h" 2909 # elif defined(I_MACH_CTHREADS) 2910 # include <mach/cthreads.h> 2911 typedef cthread_t perl_os_thread; 2912 typedef mutex_t perl_mutex; 2913 typedef condition_t perl_cond; 2914 typedef void * perl_key; 2915 # elif defined(I_PTHREAD) /* Posix threads */ 2916 # include <pthread.h> 2917 typedef pthread_t perl_os_thread; 2918 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex; 2919 typedef pthread_cond_t perl_cond; 2920 typedef pthread_key_t perl_key; 2921 # endif 2922 #endif /* USE_ITHREADS */ 2923 2924 #ifdef PERL_TSA_ACTIVE 2925 /* Since most pthread mutex interfaces have not been annotated, we 2926 * need to have these wrappers. The NO_TSA annotation is quite ugly 2927 * but it cannot be avoided in plain C, unlike in C++, where one could 2928 * e.g. use ACQUIRE() with no arg on a mutex lock method. 2929 * 2930 * The bodies of these wrappers are in util.c 2931 * 2932 * TODO: however, some platforms are starting to get these clang 2933 * thread safety annotations for pthreads, for example FreeBSD. 2934 * Do we need a way to a bypass these wrappers? */ 2935 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex) 2936 PERL_TSA_ACQUIRE(*mutex) 2937 PERL_TSA_NO_TSA; 2938 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex) 2939 PERL_TSA_RELEASE(*mutex) 2940 PERL_TSA_NO_TSA; 2941 #endif 2942 2943 #if defined(WIN32) 2944 # include "win32.h" 2945 #endif 2946 2947 #ifdef NETWARE 2948 # include "netware.h" 2949 #endif 2950 2951 #define STATUS_UNIX PL_statusvalue 2952 #ifdef VMS 2953 # define STATUS_NATIVE PL_statusvalue_vms 2954 /* 2955 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise 2956 * its contents can not be trusted. Unfortunately, Perl seems to check 2957 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should 2958 * be updated also. 2959 */ 2960 # include <stsdef.h> 2961 # include <ssdef.h> 2962 /* Presume this because if VMS changes it, it will require a new 2963 * set of APIs for waiting on children for binary compatibility. 2964 */ 2965 # define child_offset_bits (8) 2966 # ifndef C_FAC_POSIX 2967 # define C_FAC_POSIX 0x35A000 2968 # endif 2969 2970 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the 2971 * platform from the existing UNIX or Native status values. 2972 */ 2973 2974 # define STATUS_EXIT \ 2975 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \ 2976 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0)) 2977 2978 2979 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child 2980 * exit code and shifts the UNIX value over the correct number of bits to 2981 * be a child status. Usually the number of bits is 8, but that could be 2982 * platform dependent. The NATIVE status code is presumed to have either 2983 * from a child process. 2984 */ 2985 2986 /* This is complicated. The child processes return a true native VMS 2987 status which must be saved. But there is an assumption in Perl that 2988 the UNIX child status has some relationship to errno values, so 2989 Perl tries to translate it to text in some of the tests. 2990 In order to get the string translation correct, for the error, errno 2991 must be EVMSERR, but that generates a different text message 2992 than what the test programs are expecting. So an errno value must 2993 be derived from the native status value when an error occurs. 2994 That will hide the true native status message. With this version of 2995 perl, the true native child status can always be retrieved so that 2996 is not a problem. But in this case, Pl_statusvalue and errno may 2997 have different values in them. 2998 */ 2999 3000 # define STATUS_NATIVE_CHILD_SET(n) \ 3001 STMT_START { \ 3002 I32 evalue = (I32)n; \ 3003 if (evalue == EVMSERR) { \ 3004 PL_statusvalue_vms = vaxc$errno; \ 3005 PL_statusvalue = evalue; \ 3006 } else { \ 3007 PL_statusvalue_vms = evalue; \ 3008 if (evalue == -1) { \ 3009 PL_statusvalue = -1; \ 3010 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \ 3011 } else \ 3012 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \ 3013 set_vaxc_errno(evalue); \ 3014 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \ 3015 set_errno(EVMSERR); \ 3016 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \ 3017 PL_statusvalue = PL_statusvalue << child_offset_bits; \ 3018 } \ 3019 } STMT_END 3020 3021 # ifdef VMSISH_STATUS 3022 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX) 3023 # else 3024 # define STATUS_CURRENT STATUS_UNIX 3025 # endif 3026 3027 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update 3028 * the NATIVE status to an equivalent value. Can not be used to translate 3029 * exit code values as exit code values are not guaranteed to have any 3030 * relationship at all to errno values. 3031 * This is used when Perl is forcing errno to have a specific value. 3032 */ 3033 # define STATUS_UNIX_SET(n) \ 3034 STMT_START { \ 3035 I32 evalue = (I32)n; \ 3036 PL_statusvalue = evalue; \ 3037 if (PL_statusvalue != -1) { \ 3038 if (PL_statusvalue != EVMSERR) { \ 3039 PL_statusvalue &= 0xFFFF; \ 3040 if (MY_POSIX_EXIT) \ 3041 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\ 3042 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \ 3043 } \ 3044 else { \ 3045 PL_statusvalue_vms = vaxc$errno; \ 3046 } \ 3047 } \ 3048 else PL_statusvalue_vms = SS$_ABORT; \ 3049 set_vaxc_errno(PL_statusvalue_vms); \ 3050 } STMT_END 3051 3052 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets 3053 * the NATIVE error status based on it. 3054 * 3055 * When in the default mode to comply with the Perl VMS documentation, 3056 * 0 is a success and any other code sets the NATIVE status to a failure 3057 * code of SS$_ABORT. 3058 * 3059 * In the new POSIX EXIT mode, native status will be set so that the 3060 * actual exit code will can be retrieved by the calling program or 3061 * shell. 3062 * 3063 * If the exit code is not clearly a UNIX parent or child exit status, 3064 * it will be passed through as a VMS status. 3065 */ 3066 3067 # define STATUS_UNIX_EXIT_SET(n) \ 3068 STMT_START { \ 3069 I32 evalue = (I32)n; \ 3070 PL_statusvalue = evalue; \ 3071 if (MY_POSIX_EXIT) { \ 3072 if (evalue <= 0xFF00) { \ 3073 if (evalue > 0xFF) \ 3074 evalue = (evalue >> child_offset_bits) & 0xFF; \ 3075 PL_statusvalue_vms = \ 3076 (C_FAC_POSIX | (evalue << 3 ) | \ 3077 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \ 3078 } else /* forgive them Perl, for they have sinned */ \ 3079 PL_statusvalue_vms = evalue; \ 3080 } else { \ 3081 if (evalue == 0) \ 3082 PL_statusvalue_vms = SS$_NORMAL; \ 3083 else if (evalue <= 0xFF00) \ 3084 PL_statusvalue_vms = SS$_ABORT; \ 3085 else { /* forgive them Perl, for they have sinned */ \ 3086 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \ 3087 else PL_statusvalue_vms = vaxc$errno; \ 3088 /* And obviously used a VMS status value instead of UNIX */ \ 3089 PL_statusvalue = EVMSERR; \ 3090 } \ 3091 set_vaxc_errno(PL_statusvalue_vms); \ 3092 } \ 3093 } STMT_END 3094 3095 3096 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code 3097 * and sets the NATIVE error status based on it. This special case 3098 * is needed to maintain compatibility with past VMS behavior. 3099 * 3100 * In the default mode on VMS, this number is passed through as 3101 * both the NATIVE and UNIX status. Which makes it different 3102 * that the STATUS_UNIX_EXIT_SET. 3103 * 3104 * In the new POSIX EXIT mode, native status will be set so that the 3105 * actual exit code will can be retrieved by the calling program or 3106 * shell. 3107 * 3108 * A POSIX exit code is from 0 to 255. If the exit code is higher 3109 * than this, it needs to be assumed that it is a VMS exit code and 3110 * passed through. 3111 */ 3112 3113 # define STATUS_EXIT_SET(n) \ 3114 STMT_START { \ 3115 I32 evalue = (I32)n; \ 3116 PL_statusvalue = evalue; \ 3117 if (MY_POSIX_EXIT) \ 3118 if (evalue > 255) PL_statusvalue_vms = evalue; else { \ 3119 PL_statusvalue_vms = \ 3120 (C_FAC_POSIX | (evalue << 3 ) | \ 3121 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \ 3122 else \ 3123 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \ 3124 set_vaxc_errno(PL_statusvalue_vms); \ 3125 } STMT_END 3126 3127 3128 /* This macro forces a success status */ 3129 # define STATUS_ALL_SUCCESS \ 3130 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL) 3131 3132 /* This macro forces a failure status */ 3133 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \ 3134 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \ 3135 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT) 3136 3137 #elif defined(__amigaos4__) 3138 /* A somewhat experimental attempt to simulate posix return code values */ 3139 # define STATUS_NATIVE PL_statusvalue_posix 3140 # define STATUS_NATIVE_CHILD_SET(n) \ 3141 STMT_START { \ 3142 PL_statusvalue_posix = (n); \ 3143 if (PL_statusvalue_posix < 0) { \ 3144 PL_statusvalue = -1; \ 3145 } \ 3146 else { \ 3147 PL_statusvalue = n << 8; \ 3148 } \ 3149 } STMT_END 3150 # define STATUS_UNIX_SET(n) \ 3151 STMT_START { \ 3152 PL_statusvalue = (n); \ 3153 if (PL_statusvalue != -1) \ 3154 PL_statusvalue &= 0xFFFF; \ 3155 } STMT_END 3156 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n) 3157 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n) 3158 # define STATUS_CURRENT STATUS_UNIX 3159 # define STATUS_EXIT STATUS_UNIX 3160 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0) 3161 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1) 3162 3163 #else 3164 # define STATUS_NATIVE PL_statusvalue_posix 3165 # if defined(WCOREDUMP) 3166 # define STATUS_NATIVE_CHILD_SET(n) \ 3167 STMT_START { \ 3168 PL_statusvalue_posix = (n); \ 3169 if (PL_statusvalue_posix == -1) \ 3170 PL_statusvalue = -1; \ 3171 else { \ 3172 PL_statusvalue = \ 3173 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \ 3174 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \ 3175 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \ 3176 } \ 3177 } STMT_END 3178 # elif defined(WIFEXITED) 3179 # define STATUS_NATIVE_CHILD_SET(n) \ 3180 STMT_START { \ 3181 PL_statusvalue_posix = (n); \ 3182 if (PL_statusvalue_posix == -1) \ 3183 PL_statusvalue = -1; \ 3184 else { \ 3185 PL_statusvalue = \ 3186 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \ 3187 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \ 3188 } \ 3189 } STMT_END 3190 # else 3191 # define STATUS_NATIVE_CHILD_SET(n) \ 3192 STMT_START { \ 3193 PL_statusvalue_posix = (n); \ 3194 if (PL_statusvalue_posix == -1) \ 3195 PL_statusvalue = -1; \ 3196 else { \ 3197 PL_statusvalue = \ 3198 PL_statusvalue_posix & 0xFFFF; \ 3199 } \ 3200 } STMT_END 3201 # endif 3202 # define STATUS_UNIX_SET(n) \ 3203 STMT_START { \ 3204 PL_statusvalue = (n); \ 3205 if (PL_statusvalue != -1) \ 3206 PL_statusvalue &= 0xFFFF; \ 3207 } STMT_END 3208 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n) 3209 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n) 3210 # define STATUS_CURRENT STATUS_UNIX 3211 # define STATUS_EXIT STATUS_UNIX 3212 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0) 3213 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1) 3214 #endif 3215 3216 /* flags in PL_exit_flags for nature of exit() */ 3217 #define PERL_EXIT_EXPECTED 0x01 3218 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */ 3219 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */ 3220 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */ 3221 3222 #ifndef PERL_CORE 3223 /* format to use for version numbers in file/directory names */ 3224 /* XXX move to Configure? */ 3225 /* This was only ever used for the current version, and that can be done at 3226 compile time, as PERL_FS_VERSION, so should we just delete it? */ 3227 # ifndef PERL_FS_VER_FMT 3228 # define PERL_FS_VER_FMT "%d.%d.%d" 3229 # endif 3230 #endif 3231 3232 #ifndef PERL_FS_VERSION 3233 # define PERL_FS_VERSION PERL_VERSION_STRING 3234 #endif 3235 3236 /* This defines a way to flush all output buffers. This may be a 3237 * performance issue, so we allow people to disable it. Also, if 3238 * we are using stdio, there are broken implementations of fflush(NULL) 3239 * out there, Solaris being the most prominent. 3240 */ 3241 #ifndef PERL_FLUSHALL_FOR_CHILD 3242 # if defined(USE_PERLIO) || defined(FFLUSH_NULL) 3243 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL) 3244 # elif defined(FFLUSH_ALL) 3245 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all() 3246 # else 3247 # define PERL_FLUSHALL_FOR_CHILD NOOP 3248 # endif 3249 #endif 3250 3251 #ifndef PERL_WAIT_FOR_CHILDREN 3252 # define PERL_WAIT_FOR_CHILDREN NOOP 3253 #endif 3254 3255 /* the traditional thread-unsafe notion of "current interpreter". */ 3256 #ifndef PERL_SET_INTERP 3257 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i)) 3258 #endif 3259 3260 #ifndef PERL_GET_INTERP 3261 # define PERL_GET_INTERP (PL_curinterp) 3262 #endif 3263 3264 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX) 3265 # ifdef MULTIPLICITY 3266 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT) 3267 # endif 3268 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t) 3269 #endif 3270 3271 /* 3272 This replaces the previous %_ "hack" by the "%p" hacks. 3273 All that is required is that the perl source does not 3274 use "%-p" or "%-<number>p" or "%<number>p" formats. 3275 These formats will still work in perl code. 3276 See comments in sv.c for further details. 3277 3278 Robin Barker 2005-07-14 3279 3280 No longer use %1p for VDf = %vd. RMB 2007-10-19 3281 */ 3282 3283 #ifndef SVf_ 3284 # define SVf_(n) "-" STRINGIFY(n) "p" 3285 #endif 3286 3287 #ifndef SVf 3288 # define SVf "-p" 3289 #endif 3290 3291 #ifndef SVf32 3292 # define SVf32 SVf_(32) 3293 #endif 3294 3295 #ifndef SVf256 3296 # define SVf256 SVf_(256) 3297 #endif 3298 3299 #define SVfARG(p) ((void*)(p)) 3300 3301 #ifndef HEKf 3302 # define HEKf "2p" 3303 #endif 3304 3305 /* Not ideal, but we cannot easily include a number in an already-numeric 3306 * format sequence. */ 3307 #ifndef HEKf256 3308 # define HEKf256 "3p" 3309 #endif 3310 3311 #define HEKfARG(p) ((void*)(p)) 3312 3313 /* Takes three arguments: is_utf8, length, str */ 3314 #ifndef UTF8f 3315 # define UTF8f "d%" UVuf "%4p" 3316 #endif 3317 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p) 3318 3319 #define PNf UTF8f 3320 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn) 3321 3322 #ifdef PERL_CORE 3323 /* not used; but needed for backward compatibility with XS code? - RMB */ 3324 # undef UVf 3325 #elif !defined(UVf) 3326 # define UVf UVuf 3327 #endif 3328 3329 #ifdef HASATTRIBUTE_DEPRECATED 3330 # define __attribute__deprecated__ __attribute__((deprecated)) 3331 #endif 3332 #ifdef HASATTRIBUTE_FORMAT 3333 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z))) 3334 #endif 3335 #ifdef HASATTRIBUTE_MALLOC 3336 # define __attribute__malloc__ __attribute__((__malloc__)) 3337 #endif 3338 #ifdef HASATTRIBUTE_NONNULL 3339 # define __attribute__nonnull__(a) __attribute__((nonnull(a))) 3340 #endif 3341 #ifdef HASATTRIBUTE_NORETURN 3342 # define __attribute__noreturn__ __attribute__((noreturn)) 3343 #endif 3344 #ifdef HASATTRIBUTE_PURE 3345 # define __attribute__pure__ __attribute__((pure)) 3346 #endif 3347 #ifdef HASATTRIBUTE_UNUSED 3348 # define __attribute__unused__ __attribute__((unused)) 3349 #endif 3350 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT 3351 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result)) 3352 #endif 3353 3354 /* If we haven't defined the attributes yet, define them to blank. */ 3355 #ifndef __attribute__deprecated__ 3356 # define __attribute__deprecated__ 3357 #endif 3358 #ifndef __attribute__format__ 3359 # define __attribute__format__(x,y,z) 3360 #endif 3361 #ifndef __attribute__malloc__ 3362 # define __attribute__malloc__ 3363 #endif 3364 #ifndef __attribute__nonnull__ 3365 # define __attribute__nonnull__(a) 3366 #endif 3367 #ifndef __attribute__noreturn__ 3368 # define __attribute__noreturn__ 3369 #endif 3370 #ifndef __attribute__pure__ 3371 # define __attribute__pure__ 3372 #endif 3373 #ifndef __attribute__unused__ 3374 # define __attribute__unused__ 3375 #endif 3376 #ifndef __attribute__warn_unused_result__ 3377 # define __attribute__warn_unused_result__ 3378 #endif 3379 3380 #if !defined(DEBUGGING) && !defined(NDEBUG) 3381 # define NDEBUG 1 3382 #endif 3383 #include <assert.h> 3384 3385 /* For functions that are marked as __attribute__noreturn__, it's not 3386 appropriate to call return. In either case, include the lint directive. 3387 */ 3388 #ifdef HASATTRIBUTE_NORETURN 3389 # define NORETURN_FUNCTION_END NOT_REACHED; 3390 #else 3391 # define NORETURN_FUNCTION_END NOT_REACHED; return 0 3392 #endif 3393 3394 /* Some OS warn on NULL format to printf */ 3395 #ifdef PRINTF_FORMAT_NULL_OK 3396 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z) 3397 #else 3398 # define __attribute__format__null_ok__(x,y,z) 3399 #endif 3400 3401 #ifdef HAS_BUILTIN_EXPECT 3402 # define EXPECT(expr,val) __builtin_expect(expr,val) 3403 #else 3404 # define EXPECT(expr,val) (expr) 3405 #endif 3406 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE) 3407 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE) 3408 #ifdef HAS_BUILTIN_CHOOSE_EXPR 3409 /* placeholder */ 3410 #endif 3411 3412 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile 3413 time invariants. That is, their argument must be a constant expression that 3414 can be verified by the compiler. This expression can contain anything that's 3415 known to the compiler, e.g. #define constants, enums, or sizeof (...). If 3416 the expression evaluates to 0, compilation fails. 3417 Because they generate no runtime code (i.e. their use is "free"), they're 3418 always active, even under non-DEBUGGING builds. 3419 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at 3420 file scope (outside of any function). 3421 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a 3422 function. 3423 */ 3424 #if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210) 3425 /* static_assert is a macro defined in <assert.h> in C11 or a compiler 3426 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no 3427 matter what <assert.h> says. 3428 */ 3429 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND) 3430 #else 3431 /* We use a bit-field instead of an array because gcc accepts 3432 'typedef char x[n]' where n is not a compile-time constant. 3433 We want to enforce constantness. 3434 */ 3435 # define STATIC_ASSERT_2(COND, SUFFIX) \ 3436 typedef struct { \ 3437 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \ 3438 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL 3439 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX) 3440 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__) 3441 #endif 3442 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an 3443 error (static_assert is a declaration, and only statements can have labels). 3444 */ 3445 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END 3446 3447 #ifndef __has_builtin 3448 # define __has_builtin(x) 0 /* not a clang style compiler */ 3449 #endif 3450 3451 /* ASSUME is like assert(), but it has a benefit in a release build. It is a 3452 hint to a compiler about a statement of fact in a function call free 3453 expression, which allows the compiler to generate better machine code. 3454 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means 3455 the control path is unreachable. In a for loop, ASSUME can be used to hint 3456 that a loop will run at least X times. ASSUME is based off MSVC's __assume 3457 intrinsic function, see its documents for more details. 3458 */ 3459 3460 #ifndef DEBUGGING 3461 # if __has_builtin(__builtin_unreachable) \ 3462 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */ 3463 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable()) 3464 # elif defined(_MSC_VER) 3465 # define ASSUME(x) __assume(x) 3466 # elif defined(__ARMCC_VERSION) /* untested */ 3467 # define ASSUME(x) __promise(x) 3468 # else 3469 /* a random compiler might define assert to its own special optimization token 3470 so pass it through to C lib as a last resort */ 3471 # define ASSUME(x) assert(x) 3472 # endif 3473 #else 3474 # define ASSUME(x) assert(x) 3475 #endif 3476 3477 #if defined(__sun) /* ASSUME() generates warnings on Solaris */ 3478 # define NOT_REACHED 3479 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \ 3480 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */ 3481 # define NOT_REACHED STMT_START { ASSUME(0); __builtin_unreachable(); } STMT_END 3482 #else 3483 # define NOT_REACHED ASSUME(0) 3484 #endif 3485 3486 /* Some unistd.h's give a prototype for pause() even though 3487 HAS_PAUSE ends up undefined. This causes the #define 3488 below to be rejected by the compiler. Sigh. 3489 */ 3490 #ifdef HAS_PAUSE 3491 #define Pause pause 3492 #else 3493 #define Pause() sleep((32767<<16)+32767) 3494 #endif 3495 3496 #ifndef IOCPARM_LEN 3497 # ifdef IOCPARM_MASK 3498 /* on BSDish systems we're safe */ 3499 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK) 3500 # elif defined(_IOC_SIZE) && defined(__GLIBC__) 3501 /* on Linux systems we're safe; except when we're not [perl #38223] */ 3502 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x)) 3503 # else 3504 /* otherwise guess at what's safe */ 3505 # define IOCPARM_LEN(x) 256 3506 # endif 3507 #endif 3508 3509 #if defined(__CYGWIN__) 3510 /* USEMYBINMODE 3511 * This symbol, if defined, indicates that the program should 3512 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure 3513 * that a file is in "binary" mode -- that is, that no translation 3514 * of bytes occurs on read or write operations. 3515 */ 3516 # define USEMYBINMODE /**/ 3517 # include <io.h> /* for setmode() prototype */ 3518 # define my_binmode(fp, iotype, mode) \ 3519 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1) 3520 #endif 3521 3522 #ifdef __CYGWIN__ 3523 void init_os_extras(void); 3524 #endif 3525 3526 #ifdef UNION_ANY_DEFINITION 3527 UNION_ANY_DEFINITION; 3528 #else 3529 union any { 3530 void* any_ptr; 3531 SV* any_sv; 3532 SV** any_svp; 3533 GV* any_gv; 3534 AV* any_av; 3535 HV* any_hv; 3536 OP* any_op; 3537 char* any_pv; 3538 char** any_pvp; 3539 I32 any_i32; 3540 U32 any_u32; 3541 IV any_iv; 3542 UV any_uv; 3543 long any_long; 3544 bool any_bool; 3545 void (*any_dptr) (void*); 3546 void (*any_dxptr) (pTHX_ void*); 3547 }; 3548 #endif 3549 3550 typedef I32 (*filter_t) (pTHX_ int, SV *, int); 3551 3552 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len) 3553 #define FILTER_DATA(idx) \ 3554 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL) 3555 #define FILTER_ISREADER(idx) \ 3556 (PL_parser && PL_parser->rsfp_filters \ 3557 && idx >= AvFILLp(PL_parser->rsfp_filters)) 3558 #define PERL_FILTER_EXISTS(i) \ 3559 (PL_parser && PL_parser->rsfp_filters \ 3560 && (i) <= av_tindex(PL_parser->rsfp_filters)) 3561 3562 #if defined(_AIX) && !defined(_AIX43) 3563 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE) 3564 /* We cannot include <crypt.h> to get the struct crypt_data 3565 * because of setkey prototype problems when threading */ 3566 typedef struct crypt_data { /* straight from /usr/include/crypt.h */ 3567 /* From OSF, Not needed in AIX 3568 char C[28], D[28]; 3569 */ 3570 char E[48]; 3571 char KS[16][48]; 3572 char block[66]; 3573 char iobuf[16]; 3574 } CRYPTD; 3575 #endif /* threading */ 3576 #endif /* AIX */ 3577 3578 #ifndef PERL_CALLCONV 3579 # ifdef __cplusplus 3580 # define PERL_CALLCONV extern "C" 3581 # else 3582 # define PERL_CALLCONV 3583 # endif 3584 #endif 3585 #ifndef PERL_CALLCONV_NO_RET 3586 # define PERL_CALLCONV_NO_RET PERL_CALLCONV 3587 #endif 3588 3589 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that 3590 dont have a noreturn as a declaration specifier 3591 */ 3592 #ifndef PERL_STATIC_NO_RET 3593 # define PERL_STATIC_NO_RET STATIC 3594 #endif 3595 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on 3596 builds that dont have a noreturn as a declaration specifier 3597 */ 3598 #ifndef PERL_STATIC_INLINE_NO_RET 3599 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE 3600 #endif 3601 3602 #if !defined(OS2) 3603 # include "iperlsys.h" 3604 #endif 3605 3606 #ifdef __LIBCATAMOUNT__ 3607 #undef HAS_PASSWD /* unixish.h but not unixish enough. */ 3608 #undef HAS_GROUP 3609 #define FAKE_BIT_BUCKET 3610 #endif 3611 3612 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0. 3613 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by 3614 * Configure, despite their names being similar to other defines like 3615 * USE_ITHREADS. Configure in fact knows nothing about the randomised 3616 * hashes. Therefore to enable/disable the hash randomisation defines 3617 * use the Configure -Accflags=... instead. */ 3618 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) 3619 # define USE_HASH_SEED 3620 #endif 3621 3622 #include "perly.h" 3623 3624 3625 /* macros to define bit-fields in structs. */ 3626 #ifndef PERL_BITFIELD8 3627 # define PERL_BITFIELD8 unsigned 3628 #endif 3629 #ifndef PERL_BITFIELD16 3630 # define PERL_BITFIELD16 unsigned 3631 #endif 3632 #ifndef PERL_BITFIELD32 3633 # define PERL_BITFIELD32 unsigned 3634 #endif 3635 3636 #include "sv.h" 3637 #include "regexp.h" 3638 #include "util.h" 3639 #include "form.h" 3640 #include "gv.h" 3641 #include "pad.h" 3642 #include "cv.h" 3643 #include "opnames.h" 3644 #include "op.h" 3645 #include "hv.h" 3646 #include "cop.h" 3647 #include "av.h" 3648 #include "mg.h" 3649 #include "scope.h" 3650 #include "warnings.h" 3651 #include "utf8.h" 3652 3653 /* these would be in doio.h if there was such a file */ 3654 #define my_stat() my_stat_flags(SV_GMAGIC) 3655 #define my_lstat() my_lstat_flags(SV_GMAGIC) 3656 3657 /* defined in sv.c, but also used in [ach]v.c */ 3658 #undef _XPV_HEAD 3659 #undef _XPVMG_HEAD 3660 #undef _XPVCV_COMMON 3661 3662 #include "parser.h" 3663 3664 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */ 3665 3666 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C) 3667 3668 /* These have to be predeclared, as they are used in proto.h which is #included 3669 * before their definitions in regcomp.h. */ 3670 3671 struct scan_data_t; 3672 typedef struct regnode_charclass regnode_charclass; 3673 3674 struct regnode_charclass_class; 3675 3676 /* A hopefully less confusing name. The sub-classes are all Posix classes only 3677 * used under /l matching */ 3678 typedef struct regnode_charclass_class regnode_charclass_posixl; 3679 3680 typedef struct regnode_ssc regnode_ssc; 3681 typedef struct RExC_state_t RExC_state_t; 3682 struct _reg_trie_data; 3683 3684 #endif 3685 3686 struct ptr_tbl_ent { 3687 struct ptr_tbl_ent* next; 3688 const void* oldval; 3689 void* newval; 3690 }; 3691 3692 struct ptr_tbl { 3693 struct ptr_tbl_ent** tbl_ary; 3694 UV tbl_max; 3695 UV tbl_items; 3696 struct ptr_tbl_arena *tbl_arena; 3697 struct ptr_tbl_ent *tbl_arena_next; 3698 struct ptr_tbl_ent *tbl_arena_end; 3699 }; 3700 3701 #if defined(htonl) && !defined(HAS_HTONL) 3702 #define HAS_HTONL 3703 #endif 3704 #if defined(htons) && !defined(HAS_HTONS) 3705 #define HAS_HTONS 3706 #endif 3707 #if defined(ntohl) && !defined(HAS_NTOHL) 3708 #define HAS_NTOHL 3709 #endif 3710 #if defined(ntohs) && !defined(HAS_NTOHS) 3711 #define HAS_NTOHS 3712 #endif 3713 #ifndef HAS_HTONL 3714 #define HAS_HTONS 3715 #define HAS_HTONL 3716 #define HAS_NTOHS 3717 #define HAS_NTOHL 3718 # if (BYTEORDER & 0xffff) == 0x4321 3719 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to 3720 re-order their values. However, to behave identically to the alternative 3721 implementations, they should truncate to the correct size. */ 3722 # define ntohl(x) ((x)&0xFFFFFFFF) 3723 # define htonl(x) ntohl(x) 3724 # define ntohs(x) ((x)&0xFFFF) 3725 # define htons(x) ntohs(x) 3726 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 3727 3728 /* Note that we can't straight out declare our own htonl and htons because 3729 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl, 3730 to avoid the overhead of initialising the socket subsystem, but the headers 3731 that *declare* the various functions are still seen. If we declare our own 3732 htonl etc they will clash with the declarations in the Win32 headers. */ 3733 3734 PERL_STATIC_INLINE U32 3735 my_swap32(const U32 x) { 3736 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF) 3737 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8); 3738 } 3739 3740 PERL_STATIC_INLINE U16 3741 my_swap16(const U16 x) { 3742 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF); 3743 } 3744 3745 # define htonl(x) my_swap32(x) 3746 # define ntohl(x) my_swap32(x) 3747 # define ntohs(x) my_swap16(x) 3748 # define htons(x) my_swap16(x) 3749 # else 3750 # error "Unsupported byteorder" 3751 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of 3752 the error message. Please check the value of the macro BYTEORDER, as defined 3753 in config.h. The values of BYTEORDER we expect are 3754 3755 big endian little endian 3756 32 bit 0x4321 0x1234 3757 64 bit 0x87654321 0x12345678 3758 3759 If you have a system with a different byte order, please see 3760 pod/perlhack.pod for how to submit a patch to add supporting code. 3761 */ 3762 # endif 3763 #endif 3764 3765 /* 3766 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. 3767 * -DWS 3768 */ 3769 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 3770 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to 3771 re-order their values. However, to behave identically to the alternative 3772 implementations, they should truncate to the correct size. */ 3773 # define vtohl(x) ((x)&0xFFFFFFFF) 3774 # define vtohs(x) ((x)&0xFFFF) 3775 # define htovl(x) vtohl(x) 3776 # define htovs(x) vtohs(x) 3777 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 3778 # define vtohl(x) ((((x)&0xFF)<<24) \ 3779 +(((x)>>24)&0xFF) \ 3780 +(((x)&0x0000FF00)<<8) \ 3781 +(((x)&0x00FF0000)>>8) ) 3782 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF)) 3783 # define htovl(x) vtohl(x) 3784 # define htovs(x) vtohs(x) 3785 #else 3786 # error "Unsupported byteorder" 3787 /* If you have need for current perl on PDP-11 or similar, and can help test 3788 that blead keeps working on a mixed-endian system, then see 3789 pod/perlhack.pod for how to submit patches to things working again. */ 3790 #endif 3791 3792 /* *MAX Plus 1. A floating point value. 3793 Hopefully expressed in a way that dodgy floating point can't mess up. 3794 >> 2 rather than 1, so that value is safely less than I32_MAX after 1 3795 is added to it 3796 May find that some broken compiler will want the value cast to I32. 3797 [after the shift, as signed >> may not be as secure as unsigned >>] 3798 */ 3799 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1))) 3800 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2))) 3801 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or 3802 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV) 3803 may be greater than sizeof(IV), so don't assume that half max UV is max IV. 3804 */ 3805 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2))) 3806 3807 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2))) 3808 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1))) 3809 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2))) 3810 3811 /* This may look like unnecessary jumping through hoops, but converting 3812 out of range floating point values to integers *is* undefined behaviour, 3813 and it is starting to bite. 3814 */ 3815 #ifndef CAST_INLINE 3816 #define I_32(what) (cast_i32((NV)(what))) 3817 #define U_32(what) (cast_ulong((NV)(what))) 3818 #define I_V(what) (cast_iv((NV)(what))) 3819 #define U_V(what) (cast_uv((NV)(what))) 3820 #else 3821 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \ 3822 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \ 3823 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */))) 3824 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \ 3825 : ((n) < U32_MAX_P1 ? (U32) (n) \ 3826 : ((n) > 0 ? U32_MAX : 0 /* NaN */))) 3827 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \ 3828 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \ 3829 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */))) 3830 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \ 3831 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \ 3832 : ((n) > 0 ? UV_MAX : 0 /* NaN */))) 3833 #endif 3834 3835 #define U_S(what) ((U16)U_32(what)) 3836 #define U_I(what) ((unsigned int)U_32(what)) 3837 #define U_L(what) U_32(what) 3838 3839 #ifdef HAS_SIGNBIT 3840 # define Perl_signbit signbit 3841 #endif 3842 3843 /* These do not care about the fractional part, only about the range. */ 3844 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX) 3845 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX) 3846 3847 /* Used with UV/IV arguments: */ 3848 /* XXXX: need to speed it up */ 3849 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv)) 3850 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv)) 3851 3852 #ifndef MAXSYSFD 3853 # define MAXSYSFD 2 3854 #endif 3855 3856 #ifndef __cplusplus 3857 #if !(defined(WIN32) || defined(UNDER_CE) || defined(SYMBIAN)) 3858 Uid_t getuid (void); 3859 Uid_t geteuid (void); 3860 Gid_t getgid (void); 3861 Gid_t getegid (void); 3862 #endif 3863 #endif 3864 3865 #ifndef Perl_debug_log 3866 # define Perl_debug_log PerlIO_stderr() 3867 #endif 3868 3869 #ifndef Perl_error_log 3870 # define Perl_error_log (PL_stderrgv \ 3871 && isGV(PL_stderrgv) \ 3872 && GvIOp(PL_stderrgv) \ 3873 && IoOFP(GvIOp(PL_stderrgv)) \ 3874 ? IoOFP(GvIOp(PL_stderrgv)) \ 3875 : PerlIO_stderr()) 3876 #endif 3877 3878 3879 #define DEBUG_p_FLAG 0x00000001 /* 1 */ 3880 #define DEBUG_s_FLAG 0x00000002 /* 2 */ 3881 #define DEBUG_l_FLAG 0x00000004 /* 4 */ 3882 #define DEBUG_t_FLAG 0x00000008 /* 8 */ 3883 #define DEBUG_o_FLAG 0x00000010 /* 16 */ 3884 #define DEBUG_c_FLAG 0x00000020 /* 32 */ 3885 #define DEBUG_P_FLAG 0x00000040 /* 64 */ 3886 #define DEBUG_m_FLAG 0x00000080 /* 128 */ 3887 #define DEBUG_f_FLAG 0x00000100 /* 256 */ 3888 #define DEBUG_r_FLAG 0x00000200 /* 512 */ 3889 #define DEBUG_x_FLAG 0x00000400 /* 1024 */ 3890 #define DEBUG_u_FLAG 0x00000800 /* 2048 */ 3891 /* U is reserved for Unofficial, exploratory hacking */ 3892 #define DEBUG_U_FLAG 0x00001000 /* 4096 */ 3893 /* spare 8192 */ 3894 #define DEBUG_X_FLAG 0x00004000 /* 16384 */ 3895 #define DEBUG_D_FLAG 0x00008000 /* 32768 */ 3896 #define DEBUG_S_FLAG 0x00010000 /* 65536 */ 3897 #define DEBUG_T_FLAG 0x00020000 /* 131072 */ 3898 #define DEBUG_R_FLAG 0x00040000 /* 262144 */ 3899 #define DEBUG_J_FLAG 0x00080000 /* 524288 */ 3900 #define DEBUG_v_FLAG 0x00100000 /*1048576 */ 3901 #define DEBUG_C_FLAG 0x00200000 /*2097152 */ 3902 #define DEBUG_A_FLAG 0x00400000 /*4194304 */ 3903 #define DEBUG_q_FLAG 0x00800000 /*8388608 */ 3904 #define DEBUG_M_FLAG 0x01000000 /*16777216*/ 3905 #define DEBUG_B_FLAG 0x02000000 /*33554432*/ 3906 #define DEBUG_L_FLAG 0x04000000 /*67108864*/ 3907 #define DEBUG_i_FLAG 0x08000000 /*134217728*/ 3908 #define DEBUG_MASK 0x0FFFEFFF /* mask of all the standard flags */ 3909 3910 #define DEBUG_DB_RECURSE_FLAG 0x40000000 3911 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */ 3912 3913 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG) 3914 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG) 3915 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG) 3916 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG) 3917 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG) 3918 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG) 3919 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG) 3920 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG) 3921 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG) 3922 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG) 3923 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG) 3924 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG) 3925 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG) 3926 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG) 3927 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG) 3928 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG) 3929 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG) 3930 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG) 3931 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG) 3932 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG) 3933 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG) 3934 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG) 3935 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG) 3936 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG) 3937 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG) 3938 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG) 3939 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG) 3940 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_) 3941 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_) 3942 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_) 3943 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_) 3944 3945 #ifdef DEBUGGING 3946 3947 # define DEBUG_p_TEST DEBUG_p_TEST_ 3948 # define DEBUG_s_TEST DEBUG_s_TEST_ 3949 # define DEBUG_l_TEST DEBUG_l_TEST_ 3950 # define DEBUG_t_TEST DEBUG_t_TEST_ 3951 # define DEBUG_o_TEST DEBUG_o_TEST_ 3952 # define DEBUG_c_TEST DEBUG_c_TEST_ 3953 # define DEBUG_P_TEST DEBUG_P_TEST_ 3954 # define DEBUG_m_TEST DEBUG_m_TEST_ 3955 # define DEBUG_f_TEST DEBUG_f_TEST_ 3956 # define DEBUG_r_TEST DEBUG_r_TEST_ 3957 # define DEBUG_x_TEST DEBUG_x_TEST_ 3958 # define DEBUG_u_TEST DEBUG_u_TEST_ 3959 # define DEBUG_U_TEST DEBUG_U_TEST_ 3960 # define DEBUG_X_TEST DEBUG_X_TEST_ 3961 # define DEBUG_D_TEST DEBUG_D_TEST_ 3962 # define DEBUG_S_TEST DEBUG_S_TEST_ 3963 # define DEBUG_T_TEST DEBUG_T_TEST_ 3964 # define DEBUG_R_TEST DEBUG_R_TEST_ 3965 # define DEBUG_J_TEST DEBUG_J_TEST_ 3966 # define DEBUG_v_TEST DEBUG_v_TEST_ 3967 # define DEBUG_C_TEST DEBUG_C_TEST_ 3968 # define DEBUG_A_TEST DEBUG_A_TEST_ 3969 # define DEBUG_q_TEST DEBUG_q_TEST_ 3970 # define DEBUG_M_TEST DEBUG_M_TEST_ 3971 # define DEBUG_B_TEST DEBUG_B_TEST_ 3972 # define DEBUG_L_TEST DEBUG_L_TEST_ 3973 # define DEBUG_i_TEST DEBUG_i_TEST_ 3974 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_ 3975 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_ 3976 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_ 3977 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_ 3978 3979 # define PERL_DEB(a) a 3980 # define PERL_DEB2(a,b) a 3981 # define PERL_DEBUG(a) if (PL_debug) a 3982 # define DEBUG_p(a) if (DEBUG_p_TEST) a 3983 # define DEBUG_s(a) if (DEBUG_s_TEST) a 3984 # define DEBUG_l(a) if (DEBUG_l_TEST) a 3985 # define DEBUG_t(a) if (DEBUG_t_TEST) a 3986 # define DEBUG_o(a) if (DEBUG_o_TEST) a 3987 # define DEBUG_c(a) if (DEBUG_c_TEST) a 3988 # define DEBUG_P(a) if (DEBUG_P_TEST) a 3989 3990 /* Temporarily turn off memory debugging in case the a 3991 * does memory allocation, either directly or indirectly. */ 3992 # define DEBUG_m(a) \ 3993 STMT_START { \ 3994 if (PERL_GET_INTERP) { \ 3995 dTHX; \ 3996 if (DEBUG_m_TEST) { \ 3997 PL_debug &= ~DEBUG_m_FLAG; \ 3998 a; \ 3999 PL_debug |= DEBUG_m_FLAG; \ 4000 } \ 4001 } \ 4002 } STMT_END 4003 4004 # define DEBUG__(t, a) \ 4005 STMT_START { \ 4006 if (t) STMT_START {a;} STMT_END; \ 4007 } STMT_END 4008 4009 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a) 4010 4011 #ifndef PERL_EXT_RE_BUILD 4012 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a) 4013 #else 4014 # define DEBUG_r(a) STMT_START {a;} STMT_END 4015 #endif /* PERL_EXT_RE_BUILD */ 4016 4017 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a) 4018 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a) 4019 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a) 4020 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a) 4021 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a) 4022 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a) 4023 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a) 4024 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a) 4025 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a) 4026 4027 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a) 4028 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a) 4029 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a) 4030 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a) 4031 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a) 4032 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a) 4033 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a) 4034 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a) 4035 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a) 4036 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a) 4037 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a) 4038 4039 #else /* DEBUGGING */ 4040 4041 # define DEBUG_p_TEST (0) 4042 # define DEBUG_s_TEST (0) 4043 # define DEBUG_l_TEST (0) 4044 # define DEBUG_t_TEST (0) 4045 # define DEBUG_o_TEST (0) 4046 # define DEBUG_c_TEST (0) 4047 # define DEBUG_P_TEST (0) 4048 # define DEBUG_m_TEST (0) 4049 # define DEBUG_f_TEST (0) 4050 # define DEBUG_r_TEST (0) 4051 # define DEBUG_x_TEST (0) 4052 # define DEBUG_u_TEST (0) 4053 # define DEBUG_U_TEST (0) 4054 # define DEBUG_X_TEST (0) 4055 # define DEBUG_D_TEST (0) 4056 # define DEBUG_S_TEST (0) 4057 # define DEBUG_T_TEST (0) 4058 # define DEBUG_R_TEST (0) 4059 # define DEBUG_J_TEST (0) 4060 # define DEBUG_v_TEST (0) 4061 # define DEBUG_C_TEST (0) 4062 # define DEBUG_A_TEST (0) 4063 # define DEBUG_q_TEST (0) 4064 # define DEBUG_M_TEST (0) 4065 # define DEBUG_B_TEST (0) 4066 # define DEBUG_L_TEST (0) 4067 # define DEBUG_i_TEST (0) 4068 # define DEBUG_Xv_TEST (0) 4069 # define DEBUG_Uv_TEST (0) 4070 # define DEBUG_Pv_TEST (0) 4071 # define DEBUG_Lv_TEST (0) 4072 4073 # define PERL_DEB(a) 4074 # define PERL_DEB2(a,b) b 4075 # define PERL_DEBUG(a) 4076 # define DEBUG_p(a) 4077 # define DEBUG_s(a) 4078 # define DEBUG_l(a) 4079 # define DEBUG_t(a) 4080 # define DEBUG_o(a) 4081 # define DEBUG_c(a) 4082 # define DEBUG_P(a) 4083 # define DEBUG_m(a) 4084 # define DEBUG_f(a) 4085 # define DEBUG_r(a) 4086 # define DEBUG_x(a) 4087 # define DEBUG_u(a) 4088 # define DEBUG_U(a) 4089 # define DEBUG_X(a) 4090 # define DEBUG_D(a) 4091 # define DEBUG_S(a) 4092 # define DEBUG_T(a) 4093 # define DEBUG_R(a) 4094 # define DEBUG_v(a) 4095 # define DEBUG_C(a) 4096 # define DEBUG_A(a) 4097 # define DEBUG_q(a) 4098 # define DEBUG_M(a) 4099 # define DEBUG_B(a) 4100 # define DEBUG_L(a) 4101 # define DEBUG_i(a) 4102 # define DEBUG_Xv(a) 4103 # define DEBUG_Uv(a) 4104 # define DEBUG_Pv(a) 4105 # define DEBUG_Lv(a) 4106 #endif /* DEBUGGING */ 4107 4108 4109 #define DEBUG_SCOPE(where) \ 4110 DEBUG_l( \ 4111 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \ 4112 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \ 4113 __FILE__, __LINE__)); 4114 4115 /* Keep the old croak based assert for those who want it, and as a fallback if 4116 the platform is so heretically non-ANSI that it can't assert. */ 4117 4118 #define Perl_assert(what) PERL_DEB2( \ 4119 ((what) ? ((void) 0) : \ 4120 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \ 4121 "\", line %d", STRINGIFY(what), __LINE__), \ 4122 (void) 0)), ((void)0)) 4123 4124 /* assert() gets defined if DEBUGGING. 4125 * If no DEBUGGING, the <assert.h> has not been included. */ 4126 #ifndef assert 4127 # define assert(what) Perl_assert(what) 4128 #endif 4129 #ifdef DEBUGGING 4130 # define assert_(what) assert(what), 4131 #else 4132 # define assert_(what) 4133 #endif 4134 4135 struct ufuncs { 4136 I32 (*uf_val)(pTHX_ IV, SV*); 4137 I32 (*uf_set)(pTHX_ IV, SV*); 4138 IV uf_index; 4139 }; 4140 4141 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context. 4142 * XS code wanting to be backward compatible can do something 4143 * like the following: 4144 4145 #ifndef PERL_MG_UFUNC 4146 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv) 4147 #endif 4148 4149 static PERL_MG_UFUNC(foo_get, index, val) 4150 { 4151 sv_setsv(val, ...); 4152 return TRUE; 4153 } 4154 4155 -- Doug MacEachern 4156 4157 */ 4158 4159 #ifndef PERL_MG_UFUNC 4160 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv) 4161 #endif 4162 4163 #include <math.h> 4164 #ifdef __VMS 4165 /* isfinite and others are here rather than in math.h as C99 stipulates */ 4166 # include <fp.h> 4167 #endif 4168 4169 #ifndef __cplusplus 4170 # if !defined(WIN32) && !defined(VMS) 4171 #ifndef crypt 4172 char *crypt (const char*, const char*); 4173 #endif 4174 # endif /* !WIN32 */ 4175 # ifndef WIN32 4176 # ifndef getlogin 4177 char *getlogin (void); 4178 # endif 4179 # endif /* !WIN32 */ 4180 #endif /* !__cplusplus */ 4181 4182 /* Fixme on VMS. This needs to be a run-time, not build time options */ 4183 /* Also rename() is affected by this */ 4184 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */ 4185 #define UNLINK unlnk 4186 I32 unlnk (pTHX_ const char*); 4187 #else 4188 #define UNLINK PerlLIO_unlink 4189 #endif 4190 4191 /* some versions of glibc are missing the setresuid() proto */ 4192 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO) 4193 int setresuid(uid_t ruid, uid_t euid, uid_t suid); 4194 #endif 4195 /* some versions of glibc are missing the setresgid() proto */ 4196 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO) 4197 int setresgid(gid_t rgid, gid_t egid, gid_t sgid); 4198 #endif 4199 4200 #ifndef HAS_SETREUID 4201 # ifdef HAS_SETRESUID 4202 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1) 4203 # define HAS_SETREUID 4204 # endif 4205 #endif 4206 #ifndef HAS_SETREGID 4207 # ifdef HAS_SETRESGID 4208 # define setregid(r,e) setresgid(r,e,(Gid_t)-1) 4209 # define HAS_SETREGID 4210 # endif 4211 #endif 4212 4213 /* Sighandler_t defined in iperlsys.h */ 4214 4215 #ifdef HAS_SIGACTION 4216 typedef struct sigaction Sigsave_t; 4217 #else 4218 typedef Sighandler_t Sigsave_t; 4219 #endif 4220 4221 #define SCAN_DEF 0 4222 #define SCAN_TR 1 4223 #define SCAN_REPL 2 4224 4225 #ifdef DEBUGGING 4226 # ifndef register 4227 # define register 4228 # endif 4229 # define RUNOPS_DEFAULT Perl_runops_debug 4230 #else 4231 # define RUNOPS_DEFAULT Perl_runops_standard 4232 #endif 4233 4234 #if defined(USE_PERLIO) 4235 EXTERN_C void PerlIO_teardown(void); 4236 # ifdef USE_ITHREADS 4237 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex) 4238 # define PERLIO_TERM \ 4239 STMT_START { \ 4240 PerlIO_teardown(); \ 4241 MUTEX_DESTROY(&PL_perlio_mutex);\ 4242 } STMT_END 4243 # else 4244 # define PERLIO_INIT 4245 # define PERLIO_TERM PerlIO_teardown() 4246 # endif 4247 #else 4248 # define PERLIO_INIT 4249 # define PERLIO_TERM 4250 #endif 4251 4252 #ifdef MYMALLOC 4253 # ifdef MUTEX_INIT_CALLS_MALLOC 4254 # define MALLOC_INIT \ 4255 STMT_START { \ 4256 PL_malloc_mutex = NULL; \ 4257 MUTEX_INIT(&PL_malloc_mutex); \ 4258 } STMT_END 4259 # define MALLOC_TERM \ 4260 STMT_START { \ 4261 perl_mutex tmp = PL_malloc_mutex; \ 4262 PL_malloc_mutex = NULL; \ 4263 MUTEX_DESTROY(&tmp); \ 4264 } STMT_END 4265 # else 4266 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex) 4267 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex) 4268 # endif 4269 #else 4270 # define MALLOC_INIT 4271 # define MALLOC_TERM 4272 #endif 4273 4274 #if defined(PERL_IMPLICIT_CONTEXT) 4275 4276 struct perl_memory_debug_header; 4277 struct perl_memory_debug_header { 4278 tTHX interpreter; 4279 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW) 4280 MEM_SIZE size; 4281 # endif 4282 struct perl_memory_debug_header *prev; 4283 struct perl_memory_debug_header *next; 4284 # ifdef PERL_DEBUG_READONLY_COW 4285 bool readonly; 4286 # endif 4287 }; 4288 4289 #elif defined(PERL_DEBUG_READONLY_COW) 4290 4291 struct perl_memory_debug_header; 4292 struct perl_memory_debug_header { 4293 MEM_SIZE size; 4294 }; 4295 4296 #endif 4297 4298 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW) 4299 4300 # define PERL_MEMORY_DEBUG_HEADER_SIZE \ 4301 (sizeof(struct perl_memory_debug_header) + \ 4302 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \ 4303 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES) 4304 4305 #else 4306 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0 4307 #endif 4308 4309 #ifdef PERL_TRACK_MEMPOOL 4310 # ifdef PERL_DEBUG_READONLY_COW 4311 # define INIT_TRACK_MEMPOOL(header, interp) \ 4312 STMT_START { \ 4313 (header).interpreter = (interp); \ 4314 (header).prev = (header).next = &(header); \ 4315 (header).readonly = 0; \ 4316 } STMT_END 4317 # else 4318 # define INIT_TRACK_MEMPOOL(header, interp) \ 4319 STMT_START { \ 4320 (header).interpreter = (interp); \ 4321 (header).prev = (header).next = &(header); \ 4322 } STMT_END 4323 # endif 4324 # else 4325 # define INIT_TRACK_MEMPOOL(header, interp) 4326 #endif 4327 4328 #ifdef I_MALLOCMALLOC 4329 /* Needed for malloc_size(), malloc_good_size() on some systems */ 4330 # include <malloc/malloc.h> 4331 #endif 4332 4333 #ifdef MYMALLOC 4334 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where) 4335 #else 4336 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW) 4337 # ifdef PERL_TRACK_MEMPOOL 4338 # define Perl_safesysmalloc_size(where) \ 4339 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE) 4340 # else 4341 # define Perl_safesysmalloc_size(where) malloc_size(where) 4342 # endif 4343 # endif 4344 # ifdef HAS_MALLOC_GOOD_SIZE 4345 # ifdef PERL_TRACK_MEMPOOL 4346 # define Perl_malloc_good_size(how_much) \ 4347 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE) 4348 # else 4349 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much) 4350 # endif 4351 # else 4352 /* Having this as the identity operation makes some code simpler. */ 4353 # define Perl_malloc_good_size(how_much) (how_much) 4354 # endif 4355 #endif 4356 4357 typedef int (*runops_proc_t)(pTHX); 4358 typedef void (*share_proc_t) (pTHX_ SV *sv); 4359 typedef int (*thrhook_proc_t) (pTHX); 4360 typedef OP* (*PPADDR_t[]) (pTHX); 4361 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv); 4362 typedef void (*despatch_signals_proc_t) (pTHX); 4363 4364 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE) 4365 # include <crt_externs.h> /* for the env array */ 4366 # define environ (*_NSGetEnviron()) 4367 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ) 4368 /* VMS and some other platforms don't use the environ array */ 4369 EXTERN_C char **environ; /* environment variables supplied via exec */ 4370 #endif 4371 4372 #define PERL_PATCHLEVEL_H_IMPLICIT 4373 #include "patchlevel.h" 4374 #undef PERL_PATCHLEVEL_H_IMPLICIT 4375 4376 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \ 4377 STRINGIFY(PERL_VERSION) "." \ 4378 STRINGIFY(PERL_SUBVERSION) 4379 4380 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \ 4381 STRINGIFY(PERL_API_VERSION) "." \ 4382 STRINGIFY(PERL_API_SUBVERSION) 4383 4384 START_EXTERN_C 4385 4386 /* handy constants */ 4387 EXTCONST char PL_warn_uninit[] 4388 INIT("Use of uninitialized value%s%s%s"); 4389 EXTCONST char PL_warn_uninit_sv[] 4390 INIT("Use of uninitialized value%" SVf "%s%s"); 4391 EXTCONST char PL_warn_nosemi[] 4392 INIT("Semicolon seems to be missing"); 4393 EXTCONST char PL_warn_reserved[] 4394 INIT("Unquoted string \"%s\" may clash with future reserved word"); 4395 EXTCONST char PL_warn_nl[] 4396 INIT("Unsuccessful %s on filename containing newline"); 4397 EXTCONST char PL_no_wrongref[] 4398 INIT("Can't use %s ref as %s ref"); 4399 /* The core no longer needs this here. If you require the string constant, 4400 please inline a copy into your own code. */ 4401 EXTCONST char PL_no_symref[] __attribute__deprecated__ 4402 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use"); 4403 EXTCONST char PL_no_symref_sv[] 4404 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"); 4405 4406 EXTCONST char PL_no_usym[] 4407 INIT("Can't use an undefined value as %s reference"); 4408 EXTCONST char PL_no_aelem[] 4409 INIT("Modification of non-creatable array value attempted, subscript %d"); 4410 EXTCONST char PL_no_helem_sv[] 4411 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\""); 4412 EXTCONST char PL_no_modify[] 4413 INIT("Modification of a read-only value attempted"); 4414 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")] 4415 INIT("Out of memory!\n"); 4416 EXTCONST char PL_no_security[] 4417 INIT("Insecure dependency in %s%s"); 4418 EXTCONST char PL_no_sock_func[] 4419 INIT("Unsupported socket function \"%s\" called"); 4420 EXTCONST char PL_no_dir_func[] 4421 INIT("Unsupported directory function \"%s\" called"); 4422 EXTCONST char PL_no_func[] 4423 INIT("The %s function is unimplemented"); 4424 EXTCONST char PL_no_myglob[] 4425 INIT("\"%s\" %se %s can't be in a package"); 4426 EXTCONST char PL_no_localize_ref[] 4427 INIT("Can't localize through a reference"); 4428 EXTCONST char PL_memory_wrap[] 4429 INIT("panic: memory wrap"); 4430 4431 EXTCONST char PL_Yes[] 4432 INIT("1"); 4433 EXTCONST char PL_No[] 4434 INIT(""); 4435 EXTCONST char PL_Zero[] 4436 INIT("0"); 4437 EXTCONST char PL_hexdigit[] 4438 INIT("0123456789abcdef0123456789ABCDEF"); 4439 4440 /* This is constant on most architectures, a global on OS/2 */ 4441 #ifndef OS2 4442 EXTCONST char PL_sh_path[] 4443 INIT(SH_PATH); /* full path of shell */ 4444 #endif 4445 4446 #ifdef CSH 4447 EXTCONST char PL_cshname[] 4448 INIT(CSH); 4449 # define PL_cshlen (sizeof(CSH "") - 1) 4450 #endif 4451 4452 /* These are baked at compile time into any shared perl library. 4453 In future releases this will allow us in main() to sanity test the 4454 library we're linking against. */ 4455 4456 EXTCONST U8 PL_revision 4457 INIT(PERL_REVISION); 4458 EXTCONST U8 PL_version 4459 INIT(PERL_VERSION); 4460 EXTCONST U8 PL_subversion 4461 INIT(PERL_SUBVERSION); 4462 4463 EXTCONST char PL_uuemap[65] 4464 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"); 4465 4466 /* a special string address whose value is "isa", but which perl knows 4467 * to treat as if it were really "DOES" when printing the method name in 4468 * the "Can't call method '%s'" error message */ 4469 EXTCONST char PL_isa_DOES[] 4470 INIT("isa"); 4471 4472 #ifdef DOINIT 4473 EXTCONST char PL_uudmap[256] = 4474 # ifdef PERL_MICRO 4475 # include "uuudmap.h" 4476 # else 4477 # include "uudmap.h" 4478 # endif 4479 ; 4480 EXTCONST char PL_bitcount[256] = 4481 # ifdef PERL_MICRO 4482 # include "ubitcount.h" 4483 #else 4484 # include "bitcount.h" 4485 # endif 4486 ; 4487 EXTCONST char* const PL_sig_name[] = { SIG_NAME }; 4488 EXTCONST int PL_sig_num[] = { SIG_NUM }; 4489 #else 4490 EXTCONST char PL_uudmap[256]; 4491 EXTCONST char PL_bitcount[256]; 4492 EXTCONST char* const PL_sig_name[]; 4493 EXTCONST int PL_sig_num[]; 4494 #endif 4495 4496 /* fast conversion and case folding tables. The folding tables complement the 4497 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated 4498 * folds such as outside the range or to multiple characters. */ 4499 4500 #ifdef DOINIT 4501 #ifndef EBCDIC 4502 4503 /* The EBCDIC fold table depends on the code page, and hence is found in 4504 * utfebcdic.h */ 4505 4506 EXTCONST unsigned char PL_fold[] = { 4507 0, 1, 2, 3, 4, 5, 6, 7, 4508 8, 9, 10, 11, 12, 13, 14, 15, 4509 16, 17, 18, 19, 20, 21, 22, 23, 4510 24, 25, 26, 27, 28, 29, 30, 31, 4511 32, 33, 34, 35, 36, 37, 38, 39, 4512 40, 41, 42, 43, 44, 45, 46, 47, 4513 48, 49, 50, 51, 52, 53, 54, 55, 4514 56, 57, 58, 59, 60, 61, 62, 63, 4515 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4516 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4517 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4518 'x', 'y', 'z', 91, 92, 93, 94, 95, 4519 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4520 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4521 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4522 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4523 128, 129, 130, 131, 132, 133, 134, 135, 4524 136, 137, 138, 139, 140, 141, 142, 143, 4525 144, 145, 146, 147, 148, 149, 150, 151, 4526 152, 153, 154, 155, 156, 157, 158, 159, 4527 160, 161, 162, 163, 164, 165, 166, 167, 4528 168, 169, 170, 171, 172, 173, 174, 175, 4529 176, 177, 178, 179, 180, 181, 182, 183, 4530 184, 185, 186, 187, 188, 189, 190, 191, 4531 192, 193, 194, 195, 196, 197, 198, 199, 4532 200, 201, 202, 203, 204, 205, 206, 207, 4533 208, 209, 210, 211, 212, 213, 214, 215, 4534 216, 217, 218, 219, 220, 221, 222, 223, 4535 224, 225, 226, 227, 228, 229, 230, 231, 4536 232, 233, 234, 235, 236, 237, 238, 239, 4537 240, 241, 242, 243, 244, 245, 246, 247, 4538 248, 249, 250, 251, 252, 253, 254, 255 4539 }; 4540 EXTCONST unsigned char PL_fold_latin1[] = { 4541 /* Full latin1 complement folding, except for three problematic code points: 4542 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their 4543 * fold complements outside the Latin1 range, so can't match something 4544 * that isn't in utf8. 4545 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss', 4546 * not one, so can't be represented in this table. 4547 * 4548 * All have to be specially handled */ 4549 0, 1, 2, 3, 4, 5, 6, 7, 4550 8, 9, 10, 11, 12, 13, 14, 15, 4551 16, 17, 18, 19, 20, 21, 22, 23, 4552 24, 25, 26, 27, 28, 29, 30, 31, 4553 32, 33, 34, 35, 36, 37, 38, 39, 4554 40, 41, 42, 43, 44, 45, 46, 47, 4555 48, 49, 50, 51, 52, 53, 54, 55, 4556 56, 57, 58, 59, 60, 61, 62, 63, 4557 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4558 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4559 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4560 'x', 'y', 'z', 91, 92, 93, 94, 95, 4561 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4562 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4563 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4564 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4565 128, 129, 130, 131, 132, 133, 134, 135, 4566 136, 137, 138, 139, 140, 141, 142, 143, 4567 144, 145, 146, 147, 148, 149, 150, 151, 4568 152, 153, 154, 155, 156, 157, 158, 159, 4569 160, 161, 162, 163, 164, 165, 166, 167, 4570 168, 169, 170, 171, 172, 173, 174, 175, 4571 176, 177, 178, 179, 180, 181 /*micro */, 182, 183, 4572 184, 185, 186, 187, 188, 189, 190, 191, 4573 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32, 4574 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32, 4575 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215, 4576 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */, 4577 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32, 4578 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32, 4579 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247, 4580 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 4581 255 /* y with diaeresis */ 4582 }; 4583 4584 /* If these tables are accessed through ebcdic, the access will be converted to 4585 * latin1 first */ 4586 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */ 4587 0, 1, 2, 3, 4, 5, 6, 7, 4588 8, 9, 10, 11, 12, 13, 14, 15, 4589 16, 17, 18, 19, 20, 21, 22, 23, 4590 24, 25, 26, 27, 28, 29, 30, 31, 4591 32, 33, 34, 35, 36, 37, 38, 39, 4592 40, 41, 42, 43, 44, 45, 46, 47, 4593 48, 49, 50, 51, 52, 53, 54, 55, 4594 56, 57, 58, 59, 60, 61, 62, 63, 4595 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4596 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4597 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4598 'x', 'y', 'z', 91, 92, 93, 94, 95, 4599 96, 97, 98, 99, 100, 101, 102, 103, 4600 104, 105, 106, 107, 108, 109, 110, 111, 4601 112, 113, 114, 115, 116, 117, 118, 119, 4602 120, 121, 122, 123, 124, 125, 126, 127, 4603 128, 129, 130, 131, 132, 133, 134, 135, 4604 136, 137, 138, 139, 140, 141, 142, 143, 4605 144, 145, 146, 147, 148, 149, 150, 151, 4606 152, 153, 154, 155, 156, 157, 158, 159, 4607 160, 161, 162, 163, 164, 165, 166, 167, 4608 168, 169, 170, 171, 172, 173, 174, 175, 4609 176, 177, 178, 179, 180, 181, 182, 183, 4610 184, 185, 186, 187, 188, 189, 190, 191, 4611 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32, 4612 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32, 4613 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215, 4614 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223, 4615 224, 225, 226, 227, 228, 229, 230, 231, 4616 232, 233, 234, 235, 236, 237, 238, 239, 4617 240, 241, 242, 243, 244, 245, 246, 247, 4618 248, 249, 250, 251, 252, 253, 254, 255 4619 }; 4620 4621 /* upper and title case of latin1 characters, modified so that the three tricky 4622 * ones are mapped to 255 (which is one of the three) */ 4623 EXTCONST unsigned char PL_mod_latin1_uc[] = { 4624 0, 1, 2, 3, 4, 5, 6, 7, 4625 8, 9, 10, 11, 12, 13, 14, 15, 4626 16, 17, 18, 19, 20, 21, 22, 23, 4627 24, 25, 26, 27, 28, 29, 30, 31, 4628 32, 33, 34, 35, 36, 37, 38, 39, 4629 40, 41, 42, 43, 44, 45, 46, 47, 4630 48, 49, 50, 51, 52, 53, 54, 55, 4631 56, 57, 58, 59, 60, 61, 62, 63, 4632 64, 65, 66, 67, 68, 69, 70, 71, 4633 72, 73, 74, 75, 76, 77, 78, 79, 4634 80, 81, 82, 83, 84, 85, 86, 87, 4635 88, 89, 90, 91, 92, 93, 94, 95, 4636 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4637 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4638 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4639 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4640 128, 129, 130, 131, 132, 133, 134, 135, 4641 136, 137, 138, 139, 140, 141, 142, 143, 4642 144, 145, 146, 147, 148, 149, 150, 151, 4643 152, 153, 154, 155, 156, 157, 158, 159, 4644 160, 161, 162, 163, 164, 165, 166, 167, 4645 168, 169, 170, 171, 172, 173, 174, 175, 4646 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183, 4647 184, 185, 186, 187, 188, 189, 190, 191, 4648 192, 193, 194, 195, 196, 197, 198, 199, 4649 200, 201, 202, 203, 204, 205, 206, 207, 4650 208, 209, 210, 211, 212, 213, 214, 215, 4651 216, 217, 218, 219, 220, 221, 222, 4652 #if UNICODE_MAJOR_VERSION > 2 \ 4653 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \ 4654 && UNICODE_DOT_DOT_VERSION >= 8) 4655 255 /*sharp s*/, 4656 #else /* uc(sharp s) is 'sharp s' itself in early unicode */ 4657 223, 4658 #endif 4659 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32, 4660 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32, 4661 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247, 4662 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255 4663 }; 4664 #endif /* !EBCDIC, but still in DOINIT */ 4665 #else /* ! DOINIT */ 4666 # ifndef EBCDIC 4667 EXTCONST unsigned char PL_fold[]; 4668 EXTCONST unsigned char PL_fold_latin1[]; 4669 EXTCONST unsigned char PL_mod_latin1_uc[]; 4670 EXTCONST unsigned char PL_latin1_lc[]; 4671 # endif 4672 #endif 4673 4674 #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */ 4675 #ifdef DOINIT 4676 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */ 4677 0, 1, 2, 3, 4, 5, 6, 7, 4678 8, 9, 10, 11, 12, 13, 14, 15, 4679 16, 17, 18, 19, 20, 21, 22, 23, 4680 24, 25, 26, 27, 28, 29, 30, 31, 4681 32, 33, 34, 35, 36, 37, 38, 39, 4682 40, 41, 42, 43, 44, 45, 46, 47, 4683 48, 49, 50, 51, 52, 53, 54, 55, 4684 56, 57, 58, 59, 60, 61, 62, 63, 4685 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4686 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4687 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4688 'x', 'y', 'z', 91, 92, 93, 94, 95, 4689 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4690 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4691 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4692 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4693 128, 129, 130, 131, 132, 133, 134, 135, 4694 136, 137, 138, 139, 140, 141, 142, 143, 4695 144, 145, 146, 147, 148, 149, 150, 151, 4696 152, 153, 154, 155, 156, 157, 158, 159, 4697 160, 161, 162, 163, 164, 165, 166, 167, 4698 168, 169, 170, 171, 172, 173, 174, 175, 4699 176, 177, 178, 179, 180, 181, 182, 183, 4700 184, 185, 186, 187, 188, 189, 190, 191, 4701 192, 193, 194, 195, 196, 197, 198, 199, 4702 200, 201, 202, 203, 204, 205, 206, 207, 4703 208, 209, 210, 211, 212, 213, 214, 215, 4704 216, 217, 218, 219, 220, 221, 222, 223, 4705 224, 225, 226, 227, 228, 229, 230, 231, 4706 232, 233, 234, 235, 236, 237, 238, 239, 4707 240, 241, 242, 243, 244, 245, 246, 247, 4708 248, 249, 250, 251, 252, 253, 254, 255 4709 }; 4710 #else 4711 EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */ 4712 #endif 4713 #endif /* !PERL_GLOBAL_STRUCT */ 4714 4715 #ifdef DOINIT 4716 #ifdef EBCDIC 4717 EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */ 4718 1, 2, 84, 151, 154, 155, 156, 157, 4719 165, 246, 250, 3, 158, 7, 18, 29, 4720 40, 51, 62, 73, 85, 96, 107, 118, 4721 129, 140, 147, 148, 149, 150, 152, 153, 4722 255, 6, 8, 9, 10, 11, 12, 13, 4723 14, 15, 24, 25, 26, 27, 28, 226, 4724 29, 30, 31, 32, 33, 43, 44, 45, 4725 46, 47, 48, 49, 50, 76, 77, 78, 4726 79, 80, 81, 82, 83, 84, 85, 86, 4727 87, 94, 95, 234, 181, 233, 187, 190, 4728 180, 96, 97, 98, 99, 100, 101, 102, 4729 104, 112, 182, 174, 236, 232, 229, 103, 4730 228, 226, 114, 115, 116, 117, 118, 119, 4731 120, 121, 122, 235, 176, 230, 194, 162, 4732 130, 131, 132, 133, 134, 135, 136, 137, 4733 138, 139, 201, 205, 163, 217, 220, 224, 4734 5, 248, 227, 244, 242, 255, 241, 231, 4735 240, 253, 16, 197, 19, 20, 21, 187, 4736 23, 169, 210, 245, 237, 249, 247, 239, 4737 168, 252, 34, 196, 36, 37, 38, 39, 4738 41, 42, 251, 254, 238, 223, 221, 213, 4739 225, 177, 52, 53, 54, 55, 56, 57, 4740 58, 59, 60, 61, 63, 64, 65, 66, 4741 67, 68, 69, 70, 71, 72, 74, 75, 4742 205, 208, 186, 202, 200, 218, 198, 179, 4743 178, 214, 88, 89, 90, 91, 92, 93, 4744 217, 166, 170, 207, 199, 209, 206, 204, 4745 160, 212, 105, 106, 108, 109, 110, 111, 4746 203, 113, 216, 215, 192, 175, 193, 243, 4747 172, 161, 123, 124, 125, 126, 127, 128, 4748 222, 219, 211, 195, 188, 193, 185, 184, 4749 191, 183, 141, 142, 143, 144, 145, 146 4750 }; 4751 #else /* ascii rather than ebcdic */ 4752 EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */ 4753 1, 2, 84, 151, 154, 155, 156, 157, 4754 165, 246, 250, 3, 158, 7, 18, 29, 4755 40, 51, 62, 73, 85, 96, 107, 118, 4756 129, 140, 147, 148, 149, 150, 152, 153, 4757 255, 182, 224, 205, 174, 176, 180, 217, 4758 233, 232, 236, 187, 235, 228, 234, 226, 4759 222, 219, 211, 195, 188, 193, 185, 184, 4760 191, 183, 201, 229, 181, 220, 194, 162, 4761 163, 208, 186, 202, 200, 218, 198, 179, 4762 178, 214, 166, 170, 207, 199, 209, 206, 4763 204, 160, 212, 216, 215, 192, 175, 173, 4764 243, 172, 161, 190, 203, 189, 164, 230, 4765 167, 248, 227, 244, 242, 255, 241, 231, 4766 240, 253, 169, 210, 245, 237, 249, 247, 4767 239, 168, 252, 251, 254, 238, 223, 221, 4768 213, 225, 177, 197, 171, 196, 159, 4, 4769 5, 6, 8, 9, 10, 11, 12, 13, 4770 14, 15, 16, 17, 19, 20, 21, 22, 4771 23, 24, 25, 26, 27, 28, 30, 31, 4772 32, 33, 34, 35, 36, 37, 38, 39, 4773 41, 42, 43, 44, 45, 46, 47, 48, 4774 49, 50, 52, 53, 54, 55, 56, 57, 4775 58, 59, 60, 61, 63, 64, 65, 66, 4776 67, 68, 69, 70, 71, 72, 74, 75, 4777 76, 77, 78, 79, 80, 81, 82, 83, 4778 86, 87, 88, 89, 90, 91, 92, 93, 4779 94, 95, 97, 98, 99, 100, 101, 102, 4780 103, 104, 105, 106, 108, 109, 110, 111, 4781 112, 113, 114, 115, 116, 117, 119, 120, 4782 121, 122, 123, 124, 125, 126, 127, 128, 4783 130, 131, 132, 133, 134, 135, 136, 137, 4784 138, 139, 141, 142, 143, 144, 145, 146 4785 }; 4786 #endif 4787 #else 4788 EXTCONST unsigned char PL_freq[]; 4789 #endif 4790 4791 /* Although only used for debugging, these constants must be available in 4792 * non-debugging builds too, since they're used in ext/re/re_exec.c, 4793 * which has DEBUGGING enabled always */ 4794 #ifdef DOINIT 4795 EXTCONST char* const PL_block_type[] = { 4796 "NULL", 4797 "WHEN", 4798 "BLOCK", 4799 "GIVEN", 4800 "LOOP_ARY", 4801 "LOOP_LAZYSV", 4802 "LOOP_LAZYIV", 4803 "LOOP_LIST", 4804 "LOOP_PLAIN", 4805 "SUB", 4806 "FORMAT", 4807 "EVAL", 4808 "SUBST" 4809 }; 4810 #else 4811 EXTCONST char* PL_block_type[]; 4812 #endif 4813 4814 /* These are all the compile time options that affect binary compatibility. 4815 Other compile time options that are binary compatible are in perl.c 4816 (in S_Internals_V()). Both are combined for the output of perl -V 4817 However, this string will be embedded in any shared perl library, which will 4818 allow us add a comparison check in perlmain.c in the near future. */ 4819 #ifdef DOINIT 4820 EXTCONST char PL_bincompat_options[] = 4821 # ifdef DEBUG_LEAKING_SCALARS 4822 " DEBUG_LEAKING_SCALARS" 4823 # endif 4824 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP 4825 " DEBUG_LEAKING_SCALARS_FORK_DUMP" 4826 # endif 4827 # ifdef FCRYPT 4828 " FCRYPT" 4829 # endif 4830 # ifdef HAS_TIMES 4831 " HAS_TIMES" 4832 # endif 4833 # ifdef HAVE_INTERP_INTERN 4834 " HAVE_INTERP_INTERN" 4835 # endif 4836 # ifdef MULTIPLICITY 4837 " MULTIPLICITY" 4838 # endif 4839 # ifdef MYMALLOC 4840 " MYMALLOC" 4841 # endif 4842 # ifdef PERLIO_LAYERS 4843 " PERLIO_LAYERS" 4844 # endif 4845 # ifdef PERL_DEBUG_READONLY_COW 4846 " PERL_DEBUG_READONLY_COW" 4847 # endif 4848 # ifdef PERL_DEBUG_READONLY_OPS 4849 " PERL_DEBUG_READONLY_OPS" 4850 # endif 4851 # ifdef PERL_GLOBAL_STRUCT 4852 " PERL_GLOBAL_STRUCT" 4853 # endif 4854 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 4855 " PERL_GLOBAL_STRUCT_PRIVATE" 4856 # endif 4857 # ifdef PERL_IMPLICIT_CONTEXT 4858 " PERL_IMPLICIT_CONTEXT" 4859 # endif 4860 # ifdef PERL_IMPLICIT_SYS 4861 " PERL_IMPLICIT_SYS" 4862 # endif 4863 # ifdef PERL_MICRO 4864 " PERL_MICRO" 4865 # endif 4866 # ifdef PERL_NEED_APPCTX 4867 " PERL_NEED_APPCTX" 4868 # endif 4869 # ifdef PERL_NEED_TIMESBASE 4870 " PERL_NEED_TIMESBASE" 4871 # endif 4872 # ifdef PERL_POISON 4873 " PERL_POISON" 4874 # endif 4875 # ifdef PERL_SAWAMPERSAND 4876 " PERL_SAWAMPERSAND" 4877 # endif 4878 # ifdef PERL_TRACK_MEMPOOL 4879 " PERL_TRACK_MEMPOOL" 4880 # endif 4881 # ifdef PERL_USES_PL_PIDSTATUS 4882 " PERL_USES_PL_PIDSTATUS" 4883 # endif 4884 # ifdef USE_64_BIT_ALL 4885 " USE_64_BIT_ALL" 4886 # endif 4887 # ifdef USE_64_BIT_INT 4888 " USE_64_BIT_INT" 4889 # endif 4890 # ifdef USE_IEEE 4891 " USE_IEEE" 4892 # endif 4893 # ifdef USE_ITHREADS 4894 " USE_ITHREADS" 4895 # endif 4896 # ifdef USE_LARGE_FILES 4897 " USE_LARGE_FILES" 4898 # endif 4899 # ifdef USE_LOCALE_COLLATE 4900 " USE_LOCALE_COLLATE" 4901 # endif 4902 # ifdef USE_LOCALE_NUMERIC 4903 " USE_LOCALE_NUMERIC" 4904 # endif 4905 # ifdef USE_LOCALE_TIME 4906 " USE_LOCALE_TIME" 4907 # endif 4908 # ifdef USE_LONG_DOUBLE 4909 " USE_LONG_DOUBLE" 4910 # endif 4911 # ifdef USE_PERLIO 4912 " USE_PERLIO" 4913 # endif 4914 # ifdef USE_QUADMATH 4915 " USE_QUADMATH" 4916 # endif 4917 # ifdef USE_REENTRANT_API 4918 " USE_REENTRANT_API" 4919 # endif 4920 # ifdef USE_SOCKS 4921 " USE_SOCKS" 4922 # endif 4923 # ifdef VMS_DO_SOCKETS 4924 " VMS_DO_SOCKETS" 4925 # endif 4926 # ifdef VMS_SHORTEN_LONG_SYMBOLS 4927 " VMS_SHORTEN_LONG_SYMBOLS" 4928 # endif 4929 # ifdef VMS_WE_ARE_CASE_SENSITIVE 4930 " VMS_SYMBOL_CASE_AS_IS" 4931 # endif 4932 ""; 4933 #else 4934 EXTCONST char PL_bincompat_options[]; 4935 #endif 4936 4937 #ifndef PERL_SET_PHASE 4938 # define PERL_SET_PHASE(new_phase) \ 4939 PERL_DTRACE_PROBE_PHASE(new_phase); \ 4940 PL_phase = new_phase; 4941 #endif 4942 4943 /* The interpreter phases. If these ever change, PL_phase_names right below will 4944 * need to be updated accordingly. */ 4945 enum perl_phase { 4946 PERL_PHASE_CONSTRUCT = 0, 4947 PERL_PHASE_START = 1, 4948 PERL_PHASE_CHECK = 2, 4949 PERL_PHASE_INIT = 3, 4950 PERL_PHASE_RUN = 4, 4951 PERL_PHASE_END = 5, 4952 PERL_PHASE_DESTRUCT = 6 4953 }; 4954 4955 #ifdef DOINIT 4956 EXTCONST char *const PL_phase_names[] = { 4957 "CONSTRUCT", 4958 "START", 4959 "CHECK", 4960 "INIT", 4961 "RUN", 4962 "END", 4963 "DESTRUCT" 4964 }; 4965 #else 4966 EXTCONST char *const PL_phase_names[]; 4967 #endif 4968 4969 #ifndef PERL_CORE 4970 /* Do not use this macro. It only exists for extensions that rely on PL_dirty 4971 * instead of using the newer PL_phase, which provides everything PL_dirty 4972 * provided, and more. */ 4973 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT) 4974 4975 # define PL_amagic_generation PL_na 4976 # define PL_encoding ((SV *)NULL) 4977 #endif /* !PERL_CORE */ 4978 4979 #define PL_hints PL_compiling.cop_hints 4980 #define PL_maxo MAXO 4981 4982 END_EXTERN_C 4983 4984 /*****************************************************************************/ 4985 /* This lexer/parser stuff is currently global since yacc is hard to reenter */ 4986 /*****************************************************************************/ 4987 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */ 4988 4989 #ifdef __Lynx__ 4990 /* LynxOS defines these in scsi.h which is included via ioctl.h */ 4991 #ifdef FORMAT 4992 #undef FORMAT 4993 #endif 4994 #ifdef SPACE 4995 #undef SPACE 4996 #endif 4997 #endif 4998 4999 #define LEX_NOTPARSING 11 /* borrowed from toke.c */ 5000 5001 typedef enum { 5002 XOPERATOR, 5003 XTERM, 5004 XREF, 5005 XSTATE, 5006 XBLOCK, 5007 XATTRBLOCK, /* next token should be an attribute or block */ 5008 XATTRTERM, /* next token should be an attribute, or block in a term */ 5009 XTERMBLOCK, 5010 XBLOCKTERM, 5011 XPOSTDEREF, 5012 XTERMORDORDOR /* evil hack */ 5013 /* update exp_name[] in toke.c if adding to this enum */ 5014 } expectation; 5015 5016 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */ 5017 5018 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer 5019 special and there is no need for HINT_PRIVATE_MASK for COPs 5020 However, bitops store HINT_INTEGER in their op_private. 5021 5022 NOTE: The typical module using these has the bit value hard-coded, so don't 5023 blindly change the values of these. 5024 5025 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one 5026 is for "use locale 'FOO'" which excludes some categories. It requires going 5027 to %^H to find out which are in and which are out. This could be extended 5028 for the normal case of a plain HINT_LOCALE, so that %^H would be used for 5029 any locale form. */ 5030 #define HINT_INTEGER 0x00000001 /* integer pragma */ 5031 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */ 5032 #define HINT_LOCALE 0x00000004 /* locale pragma */ 5033 #define HINT_BYTES 0x00000008 /* bytes pragma */ 5034 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */ 5035 5036 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */ 5037 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */ 5038 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */ 5039 5040 #define HINT_BLOCK_SCOPE 0x00000100 5041 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */ 5042 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */ 5043 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */ 5044 5045 /* The HINT_NEW_* constants are used by the overload pragma */ 5046 #define HINT_NEW_INTEGER 0x00001000 5047 #define HINT_NEW_FLOAT 0x00002000 5048 #define HINT_NEW_BINARY 0x00004000 5049 #define HINT_NEW_STRING 0x00008000 5050 #define HINT_NEW_RE 0x00010000 5051 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */ 5052 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */ 5053 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */ 5054 5055 #define HINT_RE_TAINT 0x00100000 /* re pragma */ 5056 #define HINT_RE_EVAL 0x00200000 /* re pragma */ 5057 5058 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */ 5059 #define HINT_UTF8 0x00800000 /* utf8 pragma */ 5060 5061 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */ 5062 5063 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */ 5064 5065 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */ 5066 5067 /* Note: Used for HINT_M_VMSISH_*, 5068 currently defined by vms/vmsish.h: 5069 0x40000000 5070 0x80000000 5071 */ 5072 5073 /* The following are stored in $^H{sort}, not in PL_hints */ 5074 #define HINT_SORT_STABLE 0x00000100 /* sort styles */ 5075 #define HINT_SORT_UNSTABLE 0x00000200 5076 5077 /* flags for PL_sawampersand */ 5078 5079 #define SAWAMPERSAND_LEFT 1 /* saw $` */ 5080 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */ 5081 #define SAWAMPERSAND_RIGHT 4 /* saw $' */ 5082 5083 #ifndef PERL_SAWAMPERSAND 5084 # define PL_sawampersand \ 5085 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT) 5086 #endif 5087 5088 /* Used for debugvar magic */ 5089 #define DBVARMG_SINGLE 0 5090 #define DBVARMG_TRACE 1 5091 #define DBVARMG_SIGNAL 2 5092 #define DBVARMG_COUNT 3 5093 5094 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE]) 5095 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE]) 5096 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL]) 5097 5098 /* Various states of the input record separator SV (rs) */ 5099 #define RsSNARF(sv) (! SvOK(sv)) 5100 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv))) 5101 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv)) 5102 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0)) 5103 5104 /* A struct for keeping various DEBUGGING related stuff, 5105 * neatly packed. Currently only scratch variables for 5106 * constructing debug output are included. Needed always, 5107 * not just when DEBUGGING, though, because of the re extension. c*/ 5108 struct perl_debug_pad { 5109 SV pad[3]; 5110 }; 5111 5112 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i]) 5113 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \ 5114 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \ 5115 PERL_DEBUG_PAD(i)) 5116 5117 /* Enable variables which are pointers to functions */ 5118 typedef void (*peep_t)(pTHX_ OP* o); 5119 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm); 5120 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg, 5121 char* strend, char* strbeg, I32 minend, 5122 SV* screamer, void* data, U32 flags); 5123 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv, 5124 char *strpos, char *strend, 5125 U32 flags, 5126 re_scream_pos_data *d); 5127 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog); 5128 typedef void (*regfree_t) (pTHX_ struct regexp* r); 5129 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param); 5130 typedef I32 (*re_fold_t)(const char *, char const *, I32); 5131 5132 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*); 5133 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*); 5134 typedef void (*SVFUNC_t) (pTHX_ SV* const); 5135 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const); 5136 typedef void (*XSINIT_t) (pTHX); 5137 typedef void (*ATEXIT_t) (pTHX_ void*); 5138 typedef void (*XSUBADDR_t) (pTHX_ CV *); 5139 5140 typedef OP* (*Perl_ppaddr_t)(pTHX); 5141 typedef OP* (*Perl_check_t) (pTHX_ OP*); 5142 typedef void(*Perl_ophook_t)(pTHX_ OP*); 5143 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**); 5144 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *); 5145 5146 typedef void(*globhook_t)(pTHX); 5147 5148 #define KEYWORD_PLUGIN_DECLINE 0 5149 #define KEYWORD_PLUGIN_STMT 1 5150 #define KEYWORD_PLUGIN_EXPR 2 5151 5152 /* Interpreter exitlist entry */ 5153 typedef struct exitlistentry { 5154 void (*fn) (pTHX_ void*); 5155 void *ptr; 5156 } PerlExitListEntry; 5157 5158 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ 5159 /* These have to be before perlvars.h */ 5160 #if !defined(HAS_SIGACTION) && defined(VMS) 5161 # define FAKE_PERSISTENT_SIGNAL_HANDLERS 5162 #endif 5163 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ 5164 #if defined(KILL_BY_SIGPRC) 5165 # define FAKE_DEFAULT_SIGNAL_HANDLERS 5166 #endif 5167 5168 #if !defined(MULTIPLICITY) 5169 5170 struct interpreter { 5171 char broiled; 5172 }; 5173 5174 #else 5175 5176 /* If we have multiple interpreters define a struct 5177 holding variables which must be per-interpreter 5178 If we don't have threads anything that would have 5179 be per-thread is per-interpreter. 5180 */ 5181 5182 /* Set up PERLVAR macros for populating structs */ 5183 # define PERLVAR(prefix,var,type) type prefix##var; 5184 5185 /* 'var' is an array of length 'n' */ 5186 # define PERLVARA(prefix,var,n,type) type prefix##var[n]; 5187 5188 /* initialize 'var' to init' */ 5189 # define PERLVARI(prefix,var,type,init) type prefix##var; 5190 5191 /* like PERLVARI, but make 'var' a const */ 5192 # define PERLVARIC(prefix,var,type,init) type prefix##var; 5193 5194 struct interpreter { 5195 # include "intrpvar.h" 5196 }; 5197 5198 EXTCONST U16 PL_interp_size 5199 INIT(sizeof(struct interpreter)); 5200 5201 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \ 5202 STRUCT_OFFSET(struct interpreter, member) + \ 5203 sizeof(((struct interpreter*)0)->member) 5204 5205 /* This will be useful for subsequent releases, because this has to be the 5206 same in your libperl as in main(), else you have a mismatch and must abort. 5207 */ 5208 EXTCONST U16 PL_interp_size_5_18_0 5209 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER)); 5210 5211 5212 # ifdef PERL_GLOBAL_STRUCT 5213 /* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined, 5214 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */ 5215 5216 struct perl_vars { 5217 # include "perlvars.h" 5218 }; 5219 5220 EXTCONST U16 PL_global_struct_size 5221 INIT(sizeof(struct perl_vars)); 5222 5223 # ifdef PERL_CORE 5224 # ifndef PERL_GLOBAL_STRUCT_PRIVATE 5225 EXT struct perl_vars PL_Vars; 5226 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars); 5227 # undef PERL_GET_VARS 5228 # define PERL_GET_VARS() PL_VarsPtr 5229 # endif /* !PERL_GLOBAL_STRUCT_PRIVATE */ 5230 # else /* PERL_CORE */ 5231 # if !defined(__GNUC__) || !defined(WIN32) 5232 EXT 5233 # endif /* WIN32 */ 5234 struct perl_vars *PL_VarsPtr; 5235 # define PL_Vars (*((PL_VarsPtr) \ 5236 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX)))) 5237 # endif /* PERL_CORE */ 5238 # endif /* PERL_GLOBAL_STRUCT */ 5239 5240 /* Done with PERLVAR macros for now ... */ 5241 # undef PERLVAR 5242 # undef PERLVARA 5243 # undef PERLVARI 5244 # undef PERLVARIC 5245 5246 #endif /* MULTIPLICITY */ 5247 5248 struct tempsym; /* defined in pp_pack.c */ 5249 5250 #include "thread.h" 5251 #include "pp.h" 5252 5253 #undef PERL_CKDEF 5254 #undef PERL_PPDEF 5255 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o); 5256 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX); 5257 5258 #ifdef MYMALLOC 5259 # include "malloc_ctl.h" 5260 #endif 5261 5262 /* 5263 * This provides a layer of functions and macros to ensure extensions will 5264 * get to use the same RTL functions as the core. 5265 */ 5266 #if defined(WIN32) 5267 # include "win32iop.h" 5268 #endif 5269 5270 5271 #include "proto.h" 5272 5273 /* this has structure inits, so it cannot be included before here */ 5274 #include "opcode.h" 5275 5276 /* The following must follow proto.h as #defines mess up syntax */ 5277 5278 #if !defined(PERL_FOR_X2P) 5279 # include "embedvar.h" 5280 #endif 5281 5282 /* Now include all the 'global' variables 5283 * If we don't have threads or multiple interpreters 5284 * these include variables that would have been their struct-s 5285 */ 5286 5287 #define PERLVAR(prefix,var,type) EXT type PL_##var; 5288 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n]; 5289 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init); 5290 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init); 5291 5292 #if !defined(MULTIPLICITY) 5293 START_EXTERN_C 5294 # include "intrpvar.h" 5295 END_EXTERN_C 5296 # define PL_sv_yes (PL_sv_immortals[0]) 5297 # define PL_sv_undef (PL_sv_immortals[1]) 5298 # define PL_sv_no (PL_sv_immortals[2]) 5299 # define PL_sv_zero (PL_sv_immortals[3]) 5300 #endif 5301 5302 #ifdef PERL_CORE 5303 /* All core uses now exterminated. Ensure no zombies can return: */ 5304 # undef PL_na 5305 #endif 5306 5307 /* Now all the config stuff is setup we can include embed.h 5308 In particular, need the relevant *ish file included already, as it may 5309 define HAVE_INTERP_INTERN */ 5310 #include "embed.h" 5311 5312 #ifndef PERL_GLOBAL_STRUCT 5313 START_EXTERN_C 5314 5315 # include "perlvars.h" 5316 5317 END_EXTERN_C 5318 #endif 5319 5320 #undef PERLVAR 5321 #undef PERLVARA 5322 #undef PERLVARI 5323 #undef PERLVARIC 5324 5325 #if !defined(MULTIPLICITY) 5326 /* Set up PERLVAR macros for populating structs */ 5327 # define PERLVAR(prefix,var,type) type prefix##var; 5328 /* 'var' is an array of length 'n' */ 5329 # define PERLVARA(prefix,var,n,type) type prefix##var[n]; 5330 /* initialize 'var' to init' */ 5331 # define PERLVARI(prefix,var,type,init) type prefix##var; 5332 /* like PERLVARI, but make 'var' a const */ 5333 # define PERLVARIC(prefix,var,type,init) type prefix##var; 5334 5335 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */ 5336 struct PerlHandShakeInterpreter { 5337 # include "intrpvar.h" 5338 }; 5339 # undef PERLVAR 5340 # undef PERLVARA 5341 # undef PERLVARI 5342 # undef PERLVARIC 5343 #endif 5344 5345 START_EXTERN_C 5346 5347 /* dummy variables that hold pointers to both runops functions, thus forcing 5348 * them *both* to get linked in (useful for Peek.xs, debugging etc) */ 5349 5350 EXTCONST runops_proc_t PL_runops_std 5351 INIT(Perl_runops_standard); 5352 EXTCONST runops_proc_t PL_runops_dbg 5353 INIT(Perl_runops_debug); 5354 5355 #define EXT_MGVTBL EXTCONST MGVTBL 5356 5357 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40 5358 #define PERL_MAGIC_VALUE_MAGIC 0x80 5359 #define PERL_MAGIC_VTABLE_MASK 0x3F 5360 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \ 5361 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE) 5362 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \ 5363 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC) 5364 5365 #include "mg_vtable.h" 5366 5367 #ifdef DOINIT 5368 EXTCONST U8 PL_magic_data[256] = 5369 # ifdef PERL_MICRO 5370 # include "umg_data.h" 5371 # else 5372 # include "mg_data.h" 5373 # endif 5374 ; 5375 #else 5376 EXTCONST U8 PL_magic_data[256]; 5377 #endif 5378 5379 #ifdef DOINIT 5380 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */ 5381 EXTCONST bool 5382 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 }; 5383 EXTCONST bool 5384 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 }; 5385 EXTCONST bool 5386 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 }; 5387 EXTCONST bool 5388 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 }; 5389 EXTCONST bool 5390 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 }; 5391 EXTCONST bool 5392 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 }; 5393 5394 #else 5395 5396 EXTCONST bool PL_valid_types_IVX[]; 5397 EXTCONST bool PL_valid_types_NVX[]; 5398 EXTCONST bool PL_valid_types_PVX[]; 5399 EXTCONST bool PL_valid_types_RV[]; 5400 EXTCONST bool PL_valid_types_IV_set[]; 5401 EXTCONST bool PL_valid_types_NV_set[]; 5402 5403 #endif 5404 5405 /* In C99 we could use designated (named field) union initializers. 5406 * In C89 we need to initialize the member declared first. 5407 * In C++ we need extern C initializers. 5408 * 5409 * With the U8_NV version you will want to have inner braces, 5410 * while with the NV_U8 use just the NV. */ 5411 5412 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; } 5413 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; } 5414 5415 /* if these never got defined, they need defaults */ 5416 #ifndef PERL_SET_CONTEXT 5417 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i) 5418 #endif 5419 5420 #ifndef PERL_GET_CONTEXT 5421 # define PERL_GET_CONTEXT PERL_GET_INTERP 5422 #endif 5423 5424 #ifndef PERL_GET_THX 5425 # define PERL_GET_THX ((void*)NULL) 5426 #endif 5427 5428 #ifndef PERL_SET_THX 5429 # define PERL_SET_THX(t) NOOP 5430 #endif 5431 5432 5433 #ifndef PERL_NO_INLINE_FUNCTIONS 5434 /* Static inline funcs that depend on includes and declarations above. 5435 Some of these reference functions in the perl object files, and some 5436 compilers aren't smart enough to eliminate unused static inline 5437 functions, so including this file in source code can cause link errors 5438 even if the source code uses none of the functions. Hence including these 5439 can be be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will 5440 (obviously) result in unworkable XS code, but allows simple probing code 5441 to continue to work, because it permits tests to include the perl headers 5442 for definitions without creating a link dependency on the perl library 5443 (which may not exist yet). 5444 */ 5445 5446 # include "inline.h" 5447 #endif 5448 5449 #include "overload.h" 5450 5451 END_EXTERN_C 5452 5453 struct am_table { 5454 U8 flags; 5455 U8 fallback; 5456 U16 spare; 5457 U32 was_ok_sub; 5458 CV* table[NofAMmeth]; 5459 }; 5460 struct am_table_short { 5461 U8 flags; 5462 U8 fallback; 5463 U16 spare; 5464 U32 was_ok_sub; 5465 }; 5466 typedef struct am_table AMT; 5467 typedef struct am_table_short AMTS; 5468 5469 #define AMGfallNEVER 1 5470 #define AMGfallNO 2 5471 #define AMGfallYES 3 5472 5473 #define AMTf_AMAGIC 1 5474 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC) 5475 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC) 5476 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC) 5477 5478 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg)) 5479 5480 /* 5481 * some compilers like to redefine cos et alia as faster 5482 * (and less accurate?) versions called F_cos et cetera (Quidquid 5483 * latine dictum sit, altum viditur.) This trick collides with 5484 * the Perl overloading (amg). The following #defines fool both. 5485 */ 5486 5487 #ifdef _FASTMATH 5488 # ifdef atan2 5489 # define F_atan2_amg atan2_amg 5490 # endif 5491 # ifdef cos 5492 # define F_cos_amg cos_amg 5493 # endif 5494 # ifdef exp 5495 # define F_exp_amg exp_amg 5496 # endif 5497 # ifdef log 5498 # define F_log_amg log_amg 5499 # endif 5500 # ifdef pow 5501 # define F_pow_amg pow_amg 5502 # endif 5503 # ifdef sin 5504 # define F_sin_amg sin_amg 5505 # endif 5506 # ifdef sqrt 5507 # define F_sqrt_amg sqrt_amg 5508 # endif 5509 #endif /* _FASTMATH */ 5510 5511 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \ 5512 PERLDBf_NOOPT | PERLDBf_INTER | \ 5513 PERLDBf_SUBLINE| PERLDBf_SINGLE| \ 5514 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \ 5515 PERLDBf_SAVESRC) 5516 /* No _NONAME, _GOTO */ 5517 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */ 5518 #define PERLDBf_LINE 0x02 /* Keep line # */ 5519 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */ 5520 #define PERLDBf_INTER 0x08 /* Preserve more data for 5521 later inspections */ 5522 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */ 5523 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */ 5524 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */ 5525 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */ 5526 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */ 5527 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */ 5528 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */ 5529 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */ 5530 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */ 5531 5532 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB) 5533 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE) 5534 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT) 5535 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER) 5536 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE) 5537 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE) 5538 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME) 5539 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO) 5540 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL) 5541 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON) 5542 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC) 5543 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS) 5544 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID) 5545 5546 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC)) 5547 5548 #ifdef USE_ITHREADS 5549 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex) 5550 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex) 5551 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex) 5552 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex) 5553 #else 5554 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP 5555 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP 5556 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP 5557 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP 5558 #endif 5559 5560 #ifdef USE_LOCALE /* These locale things are all subject to change */ 5561 5562 /* Returns TRUE if the plain locale pragma without a parameter is in effect. 5563 * */ 5564 # define IN_LOCALE_RUNTIME (PL_curcop \ 5565 && CopHINTS_get(PL_curcop) & HINT_LOCALE) 5566 5567 /* Returns TRUE if either form of the locale pragma is in effect */ 5568 # define IN_SOME_LOCALE_FORM_RUNTIME \ 5569 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL)) 5570 5571 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE) 5572 # define IN_SOME_LOCALE_FORM_COMPILETIME \ 5573 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL)) 5574 5575 # define IN_LOCALE \ 5576 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME) 5577 # define IN_SOME_LOCALE_FORM \ 5578 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \ 5579 : IN_SOME_LOCALE_FORM_RUNTIME) 5580 5581 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME 5582 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME 5583 5584 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL) 5585 # define IN_LC_PARTIAL_RUNTIME \ 5586 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL) 5587 5588 # define IN_LC_COMPILETIME(category) \ 5589 ( IN_LC_ALL_COMPILETIME \ 5590 || ( IN_LC_PARTIAL_COMPILETIME \ 5591 && Perl__is_in_locale_category(aTHX_ TRUE, (category)))) 5592 # define IN_LC_RUNTIME(category) \ 5593 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \ 5594 && Perl__is_in_locale_category(aTHX_ FALSE, (category)))) 5595 # define IN_LC(category) \ 5596 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category)) 5597 5598 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE) 5599 5600 /* This internal macro should be called from places that operate under 5601 * locale rules. It there is a problem with the current locale that 5602 * hasn't been raised yet, it will output a warning this time. Because 5603 * this will so rarely be true, there is no point to optimize for time; 5604 * instead it makes sense to minimize space used and do all the work in 5605 * the rarely called function */ 5606 # ifdef USE_LOCALE_CTYPE 5607 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \ 5608 STMT_START { \ 5609 if (UNLIKELY(PL_warn_locale)) { \ 5610 Perl__warn_problematic_locale(); \ 5611 } \ 5612 } STMT_END 5613 # else 5614 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE 5615 # endif 5616 5617 5618 /* These two internal macros are called when a warning should be raised, 5619 * and will do so if enabled. The first takes a single code point 5620 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded 5621 * string, and an end position which it won't try to read past */ 5622 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \ 5623 STMT_START { \ 5624 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \ 5625 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \ 5626 "Wide character (U+%" UVXf ") in %s",\ 5627 (UV) cp, OP_DESC(PL_op)); \ 5628 } \ 5629 } STMT_END 5630 5631 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \ 5632 STMT_START { /* Check if to warn before doing the conversion work */\ 5633 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \ 5634 UV cp = utf8_to_uvchr_buf((U8 *) s, (U8 *) send, NULL); \ 5635 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \ 5636 "Wide character (U+%" UVXf ") in %s", \ 5637 (cp == 0) \ 5638 ? UNICODE_REPLACEMENT \ 5639 : (UV) cp, \ 5640 OP_DESC(PL_op)); \ 5641 } \ 5642 } STMT_END 5643 5644 # endif /* PERL_CORE or PERL_IN_XSUB_RE */ 5645 #else /* No locale usage */ 5646 # define IN_LOCALE_RUNTIME 0 5647 # define IN_SOME_LOCALE_FORM_RUNTIME 0 5648 # define IN_LOCALE_COMPILETIME 0 5649 # define IN_SOME_LOCALE_FORM_COMPILETIME 0 5650 # define IN_LOCALE 0 5651 # define IN_SOME_LOCALE_FORM 0 5652 # define IN_LC_ALL_COMPILETIME 0 5653 # define IN_LC_ALL_RUNTIME 0 5654 # define IN_LC_PARTIAL_COMPILETIME 0 5655 # define IN_LC_PARTIAL_RUNTIME 0 5656 # define IN_LC_COMPILETIME(category) 0 5657 # define IN_LC_RUNTIME(category) 0 5658 # define IN_LC(category) 0 5659 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE 5660 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) 5661 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c) 5662 #endif 5663 5664 5665 /* Locale/thread synchronization macros. These aren't needed if using 5666 * thread-safe locale operations, except if something is broken */ 5667 #if defined(USE_LOCALE) \ 5668 && defined(USE_ITHREADS) \ 5669 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV)) 5670 5671 /* We have a locale object holding the 'C' locale for Posix 2008 */ 5672 #ifndef USE_POSIX_2008_LOCALE 5673 # define _LOCALE_TERM_POSIX_2008 NOOP 5674 # else 5675 # define _LOCALE_TERM_POSIX_2008 \ 5676 STMT_START { \ 5677 if (PL_C_locale_obj) { \ 5678 /* Make sure we aren't using the locale \ 5679 * space we are about to free */ \ 5680 uselocale(LC_GLOBAL_LOCALE); \ 5681 freelocale(PL_C_locale_obj); \ 5682 PL_C_locale_obj = (locale_t) NULL; \ 5683 } \ 5684 } STMT_END 5685 # endif 5686 5687 /* This is used as a generic lock for locale operations. For example this is 5688 * used when calling nl_langinfo() so that another thread won't zap the 5689 * contents of its buffer before it gets saved; and it's called when changing 5690 * the locale of LC_MESSAGES. On some systems the latter can cause the 5691 * nl_langinfo buffer to be zapped under a race condition. 5692 * 5693 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock 5694 * should be contained entirely within the locked portion of LC_NUMERIC. This 5695 * mutex should be used only in very short sections of code, while 5696 * LC_NUMERIC_LOCK may span more operations. By always following this 5697 * convention, deadlock should be impossible. But if necessary, the two 5698 * mutexes could be combined. 5699 * 5700 * Actually, the two macros just below with the '_V' suffixes are used in just 5701 * a few places where there is a broken localeconv(), but otherwise things are 5702 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and 5703 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */ 5704 # define LOCALE_LOCK_V \ 5705 STMT_START { \ 5706 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 5707 "%s: %d: locking locale\n", __FILE__, __LINE__)); \ 5708 MUTEX_LOCK(&PL_locale_mutex); \ 5709 } STMT_END 5710 # define LOCALE_UNLOCK_V \ 5711 STMT_START { \ 5712 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 5713 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \ 5714 MUTEX_UNLOCK(&PL_locale_mutex); \ 5715 } STMT_END 5716 5717 /* On windows, we just need the mutex for LOCALE_LOCK */ 5718 # ifdef TS_W32_BROKEN_LOCALECONV 5719 # define LOCALE_LOCK NOOP 5720 # define LOCALE_UNLOCK NOOP 5721 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex); 5722 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex) 5723 # define LC_NUMERIC_LOCK(cond) 5724 # define LC_NUMERIC_UNLOCK 5725 # else 5726 # define LOCALE_LOCK LOCALE_LOCK_V 5727 # define LOCALE_UNLOCK LOCALE_UNLOCK_V 5728 5729 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008) 5730 * systems */ 5731 # define LOCALE_INIT STMT_START { \ 5732 MUTEX_INIT(&PL_locale_mutex); \ 5733 MUTEX_INIT(&PL_lc_numeric_mutex); \ 5734 } STMT_END 5735 5736 # define LOCALE_TERM STMT_START { \ 5737 MUTEX_DESTROY(&PL_locale_mutex); \ 5738 MUTEX_DESTROY(&PL_lc_numeric_mutex); \ 5739 _LOCALE_TERM_POSIX_2008; \ 5740 } STMT_END 5741 5742 /* This mutex is used to create critical sections where we want the 5743 * LC_NUMERIC locale to be locked into either the C (standard) locale, or 5744 * the underlying locale, so that other threads interrupting this one don't 5745 * change it to the wrong state before we've had a chance to complete our 5746 * operation. It can stay locked over an entire printf operation, for 5747 * example. And so is made distinct from the LOCALE_LOCK mutex. 5748 * 5749 * This simulates kind of a general semaphore. The current thread will 5750 * lock the mutex if the per-thread variable is zero, and then increments 5751 * that variable. Each corresponding UNLOCK decrements the variable until 5752 * it is 0, at which point it actually unlocks the mutex. Since the 5753 * variable is per-thread, there is no race with other threads. 5754 * 5755 * The single argument is a condition to test for, and if true, to panic, 5756 * as this would be an attempt to complement the LC_NUMERIC state, and 5757 * we're not supposed to because it's locked. 5758 * 5759 * Clang improperly gives warnings for this, if not silenced: 5760 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks 5761 * */ 5762 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \ 5763 CLANG_DIAG_IGNORE(-Wthread-safety) \ 5764 STMT_START { \ 5765 if (PL_lc_numeric_mutex_depth <= 0) { \ 5766 MUTEX_LOCK(&PL_lc_numeric_mutex); \ 5767 PL_lc_numeric_mutex_depth = 1; \ 5768 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 5769 "%s: %d: locking lc_numeric; depth=1\n", \ 5770 __FILE__, __LINE__)); \ 5771 } \ 5772 else { \ 5773 PL_lc_numeric_mutex_depth++; \ 5774 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 5775 "%s: %d: avoided lc_numeric_lock; depth=%d\n", \ 5776 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \ 5777 if (cond_to_panic_if_already_locked) { \ 5778 Perl_croak_nocontext("panic: %s: %d: Trying to change" \ 5779 " LC_NUMERIC incompatibly", \ 5780 __FILE__, __LINE__); \ 5781 } \ 5782 } \ 5783 } STMT_END 5784 5785 # define LC_NUMERIC_UNLOCK \ 5786 STMT_START { \ 5787 if (PL_lc_numeric_mutex_depth <= 1) { \ 5788 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \ 5789 PL_lc_numeric_mutex_depth = 0; \ 5790 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 5791 "%s: %d: unlocking lc_numeric; depth=0\n", \ 5792 __FILE__, __LINE__)); \ 5793 } \ 5794 else { \ 5795 PL_lc_numeric_mutex_depth--; \ 5796 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 5797 "%s: %d: avoided lc_numeric_unlock; depth=%d\n", \ 5798 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \ 5799 } \ 5800 } STMT_END \ 5801 CLANG_DIAG_RESTORE 5802 5803 # endif /* End of needs locking LC_NUMERIC */ 5804 #else /* Below is no locale sync needed */ 5805 # define LOCALE_INIT 5806 # define LOCALE_LOCK 5807 # define LOCALE_LOCK_V 5808 # define LOCALE_UNLOCK 5809 # define LOCALE_UNLOCK_V 5810 # define LC_NUMERIC_LOCK(cond) 5811 # define LC_NUMERIC_UNLOCK 5812 # define LOCALE_TERM 5813 #endif 5814 5815 #ifdef USE_LOCALE_NUMERIC 5816 5817 /* These macros are for toggling between the underlying locale (UNDERLYING or 5818 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C 5819 * locale if the underlying locale is indistinguishable from it in the numeric 5820 * operations used by Perl, namely the decimal point, and even the thousands 5821 * separator.) 5822 5823 =head1 Locale-related functions and macros 5824 5825 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION 5826 5827 This macro should be used as a statement. It declares a private variable 5828 (whose name begins with an underscore) that is needed by the other macros in 5829 this section. Failing to include this correctly should lead to a syntax error. 5830 For compatibility with C89 C compilers it should be placed in a block before 5831 any executable statements. 5832 5833 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING 5834 5835 This is used by XS code that that is C<LC_NUMERIC> locale-aware to force the 5836 locale for category C<LC_NUMERIC> to be what perl thinks is the current 5837 underlying locale. (The perl interpreter could be wrong about what the 5838 underlying locale actually is if some C or XS code has called the C library 5839 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling 5840 this macro will update perl's records.) 5841 5842 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 5843 declare at compile time a private variable used by this macro. This macro 5844 should be called as a single statement, not an expression, but with an empty 5845 argument list, like this: 5846 5847 { 5848 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 5849 ... 5850 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING(); 5851 ... 5852 RESTORE_LC_NUMERIC(); 5853 ... 5854 } 5855 5856 The private variable is used to save the current locale state, so 5857 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it. 5858 5859 On threaded perls not operating with thread-safe functionality, this macro uses 5860 a mutex to force a critical section. Therefore the matching RESTORE should be 5861 close by, and guaranteed to be called. 5862 5863 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED 5864 5865 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware. 5866 This locale category is generally kept set to a locale where the decimal radix 5867 character is a dot, and the separator between groups of digits is empty. This 5868 is because most XS code that reads floating point numbers is expecting them to 5869 have this syntax. 5870 5871 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be 5872 aware of locale if the call to the XS or C code from the Perl program is 5873 from within the scope of a S<C<use locale>>; or to ignore locale if the call is 5874 instead from outside such scope. 5875 5876 This macro is the start of wrapping the C or XS code; the wrap ending is done 5877 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise 5878 the state can be changed that will adversely affect other XS code. 5879 5880 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 5881 declare at compile time a private variable used by this macro. This macro 5882 should be called as a single statement, not an expression, but with an empty 5883 argument list, like this: 5884 5885 { 5886 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 5887 ... 5888 STORE_LC_NUMERIC_SET_TO_NEEDED(); 5889 ... 5890 RESTORE_LC_NUMERIC(); 5891 ... 5892 } 5893 5894 On threaded perls not operating with thread-safe functionality, this macro uses 5895 a mutex to force a critical section. Therefore the matching RESTORE should be 5896 close by, and guaranteed to be called. 5897 5898 =for apidoc Am|void|RESTORE_LC_NUMERIC 5899 5900 This is used in conjunction with one of the macros 5901 L</STORE_LC_NUMERIC_SET_TO_NEEDED> 5902 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the 5903 C<LC_NUMERIC> state. 5904 5905 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 5906 declare at compile time a private variable used by this macro and the two 5907 C<STORE> ones. This macro should be called as a single statement, not an 5908 expression, but with an empty argument list, like this: 5909 5910 { 5911 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 5912 ... 5913 RESTORE_LC_NUMERIC(); 5914 ... 5915 } 5916 5917 =cut 5918 5919 */ 5920 5921 /* If the underlying numeric locale has a non-dot decimal point or has a 5922 * non-empty floating point thousands separator, the current locale is instead 5923 * generally kept in the C locale instead of that underlying locale. The 5924 * current status is known by looking at two words. One is non-zero if the 5925 * current numeric locale is the standard C/POSIX one or is indistinguishable 5926 * from C. The other is non-zero if the current locale is the underlying 5927 * locale. Both can be non-zero if, as often happens, the underlying locale is 5928 * C or indistinguishable from it. 5929 * 5930 * khw believes the reason for the variables instead of the bits in a single 5931 * word is to avoid having to have masking instructions. */ 5932 5933 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard) 5934 5935 /* We can lock the category to stay in the C locale, making requests to the 5936 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2. 5937 * */ 5938 # define _NOT_IN_NUMERIC_UNDERLYING \ 5939 (! PL_numeric_underlying && PL_numeric_standard < 2) 5940 5941 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \ 5942 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL 5943 5944 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \ 5945 STMT_START { \ 5946 LC_NUMERIC_LOCK( \ 5947 (IN_LC(LC_NUMERIC) && _NOT_IN_NUMERIC_UNDERLYING) \ 5948 || _NOT_IN_NUMERIC_STANDARD); \ 5949 if (IN_LC(LC_NUMERIC)) { \ 5950 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 5951 Perl_set_numeric_underlying(aTHX); \ 5952 _restore_LC_NUMERIC_function \ 5953 = &Perl_set_numeric_standard; \ 5954 } \ 5955 } \ 5956 else { \ 5957 if (_NOT_IN_NUMERIC_STANDARD) { \ 5958 Perl_set_numeric_standard(aTHX); \ 5959 _restore_LC_NUMERIC_function \ 5960 = &Perl_set_numeric_underlying; \ 5961 } \ 5962 } \ 5963 } STMT_END 5964 5965 # define RESTORE_LC_NUMERIC() \ 5966 STMT_START { \ 5967 if (_restore_LC_NUMERIC_function) { \ 5968 _restore_LC_NUMERIC_function(aTHX); \ 5969 } \ 5970 LC_NUMERIC_UNLOCK; \ 5971 } STMT_END 5972 5973 /* The next two macros set unconditionally. These should be rarely used, and 5974 * only after being sure that this is what is needed */ 5975 # define SET_NUMERIC_STANDARD() \ 5976 STMT_START { \ 5977 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 5978 "%s: %d: lc_numeric standard=%d\n", \ 5979 __FILE__, __LINE__, PL_numeric_standard)); \ 5980 Perl_set_numeric_standard(aTHX); \ 5981 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 5982 "%s: %d: lc_numeric standard=%d\n", \ 5983 __FILE__, __LINE__, PL_numeric_standard)); \ 5984 } STMT_END 5985 5986 # define SET_NUMERIC_UNDERLYING() \ 5987 STMT_START { \ 5988 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 5989 Perl_set_numeric_underlying(aTHX); \ 5990 } \ 5991 } STMT_END 5992 5993 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with 5994 * the RESTORE_foo ones called to switch back, but only if need be */ 5995 # define STORE_LC_NUMERIC_SET_STANDARD() \ 5996 STMT_START { \ 5997 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \ 5998 if (_NOT_IN_NUMERIC_STANDARD) { \ 5999 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\ 6000 Perl_set_numeric_standard(aTHX); \ 6001 } \ 6002 } STMT_END 6003 6004 /* Rarely, we want to change to the underlying locale even outside of 'use 6005 * locale'. This is principally in the POSIX:: functions */ 6006 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \ 6007 STMT_START { \ 6008 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \ 6009 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 6010 Perl_set_numeric_underlying(aTHX); \ 6011 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \ 6012 } \ 6013 } STMT_END 6014 6015 /* Lock/unlock to the C locale until unlock is called. This needs to be 6016 * recursively callable. [perl #128207] */ 6017 # define LOCK_LC_NUMERIC_STANDARD() \ 6018 STMT_START { \ 6019 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6020 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \ 6021 __FILE__, __LINE__, PL_numeric_standard + 1)); \ 6022 __ASSERT_(PL_numeric_standard) \ 6023 PL_numeric_standard++; \ 6024 } STMT_END 6025 6026 # define UNLOCK_LC_NUMERIC_STANDARD() \ 6027 STMT_START { \ 6028 if (PL_numeric_standard > 1) { \ 6029 PL_numeric_standard--; \ 6030 } \ 6031 else { \ 6032 assert(0); \ 6033 } \ 6034 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6035 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \ 6036 __FILE__, __LINE__, PL_numeric_standard)); \ 6037 } STMT_END 6038 6039 #else /* !USE_LOCALE_NUMERIC */ 6040 6041 # define SET_NUMERIC_STANDARD() 6042 # define SET_NUMERIC_UNDERLYING() 6043 # define IS_NUMERIC_RADIX(a, b) (0) 6044 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION 6045 # define STORE_LC_NUMERIC_SET_STANDARD() 6046 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() 6047 # define STORE_LC_NUMERIC_SET_TO_NEEDED() 6048 # define RESTORE_LC_NUMERIC() 6049 # define LOCK_LC_NUMERIC_STANDARD() 6050 # define UNLOCK_LC_NUMERIC_STANDARD() 6051 6052 #endif /* !USE_LOCALE_NUMERIC */ 6053 6054 #define Atof my_atof 6055 6056 #ifdef USE_QUADMATH 6057 # define Perl_strtod(s, e) strtoflt128(s, e) 6058 #elif defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) 6059 # if defined(HAS_STRTOLD) 6060 # define Perl_strtod(s, e) strtold(s, e) 6061 # elif defined(HAS_STRTOD) 6062 # define Perl_strtod(s, e) (NV)strtod(s, e) /* Unavoidable loss. */ 6063 # endif 6064 #elif defined(HAS_STRTOD) 6065 # define Perl_strtod(s, e) strtod(s, e) 6066 #endif 6067 6068 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \ 6069 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6070 # ifdef __hpux 6071 # define strtoll __strtoll /* secret handshake */ 6072 # endif 6073 # if defined(WIN64) && defined(_MSC_VER) 6074 # define strtoll _strtoi64 /* secret handshake */ 6075 # endif 6076 # if !defined(Strtol) && defined(HAS_STRTOLL) 6077 # define Strtol strtoll 6078 # endif 6079 # if !defined(Strtol) && defined(HAS_STRTOQ) 6080 # define Strtol strtoq 6081 # endif 6082 /* is there atoq() anywhere? */ 6083 #endif 6084 #if !defined(Strtol) && defined(HAS_STRTOL) 6085 # define Strtol strtol 6086 #endif 6087 #ifndef Atol 6088 /* It would be more fashionable to use Strtol() to define atol() 6089 * (as is done for Atoul(), see below) but for backward compatibility 6090 * we just assume atol(). */ 6091 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \ 6092 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6093 # ifdef WIN64 6094 # define atoll _atoi64 /* secret handshake */ 6095 # endif 6096 # define Atol atoll 6097 # else 6098 # define Atol atol 6099 # endif 6100 #endif 6101 6102 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \ 6103 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6104 # ifdef __hpux 6105 # define strtoull __strtoull /* secret handshake */ 6106 # endif 6107 # if defined(WIN64) && defined(_MSC_VER) 6108 # define strtoull _strtoui64 /* secret handshake */ 6109 # endif 6110 # if !defined(Strtoul) && defined(HAS_STRTOULL) 6111 # define Strtoul strtoull 6112 # endif 6113 # if !defined(Strtoul) && defined(HAS_STRTOUQ) 6114 # define Strtoul strtouq 6115 # endif 6116 /* is there atouq() anywhere? */ 6117 #endif 6118 #if !defined(Strtoul) && defined(HAS_STRTOUL) 6119 # define Strtoul strtoul 6120 #endif 6121 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */ 6122 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b)) 6123 #endif 6124 #ifndef Atoul 6125 # define Atoul(s) Strtoul(s, NULL, 10) 6126 #endif 6127 6128 #ifndef PERL_SCRIPT_MODE 6129 #define PERL_SCRIPT_MODE "r" 6130 #endif 6131 6132 /* not used. Kept as a NOOP for backcompat */ 6133 #define PERL_STACK_OVERFLOW_CHECK() NOOP 6134 6135 /* 6136 * Some nonpreemptive operating systems find it convenient to 6137 * check for asynchronous conditions after each op execution. 6138 * Keep this check simple, or it may slow down execution 6139 * massively. 6140 */ 6141 6142 #ifndef PERL_MICRO 6143 # ifndef PERL_ASYNC_CHECK 6144 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX) 6145 # endif 6146 #endif 6147 6148 #ifndef PERL_ASYNC_CHECK 6149 # define PERL_ASYNC_CHECK() NOOP 6150 #endif 6151 6152 /* 6153 * On some operating systems, a memory allocation may succeed, 6154 * but put the process too close to the system's comfort limit. 6155 * In this case, PERL_ALLOC_CHECK frees the pointer and sets 6156 * it to NULL. 6157 */ 6158 #ifndef PERL_ALLOC_CHECK 6159 #define PERL_ALLOC_CHECK(p) NOOP 6160 #endif 6161 6162 #ifdef HAS_SEM 6163 # include <sys/ipc.h> 6164 # include <sys/sem.h> 6165 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */ 6166 union semun { 6167 int val; 6168 struct semid_ds *buf; 6169 unsigned short *array; 6170 }; 6171 # endif 6172 # ifdef USE_SEMCTL_SEMUN 6173 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC 6174 union gccbug_semun { 6175 int val; 6176 struct semid_ds *buf; 6177 unsigned short *array; 6178 char __dummy[5]; 6179 }; 6180 # define semun gccbug_semun 6181 # endif 6182 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun) 6183 # elif defined(USE_SEMCTL_SEMID_DS) 6184 # ifdef EXTRA_F_IN_SEMUN_BUF 6185 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff) 6186 # else 6187 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf) 6188 # endif 6189 # endif 6190 #endif 6191 6192 /* 6193 * Boilerplate macros for initializing and accessing interpreter-local 6194 * data from C. All statics in extensions should be reworked to use 6195 * this, if you want to make the extension thread-safe. See 6196 * ext/XS/APItest/APItest.xs for an example of the use of these macros, 6197 * and perlxs.pod for more. 6198 * 6199 * Code that uses these macros is responsible for the following: 6200 * 1. #define MY_CXT_KEY to a unique string, e.g. 6201 * "DynaLoader::_guts" XS_VERSION 6202 * XXX in the current implementation, this string is ignored. 6203 * 2. Declare a typedef named my_cxt_t that is a structure that contains 6204 * all the data that needs to be interpreter-local. 6205 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t. 6206 * 4. Use the MY_CXT_INIT macro such that it is called exactly once 6207 * (typically put in the BOOT: section). 6208 * 5. Use the members of the my_cxt_t structure everywhere as 6209 * MY_CXT.member. 6210 * 6. Use the dMY_CXT macro (a declaration) in all the functions that 6211 * access MY_CXT. 6212 */ 6213 6214 #if defined(PERL_IMPLICIT_CONTEXT) 6215 6216 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure, 6217 * right after the definition (i.e. at file scope). The non-threads 6218 * case below uses it to declare the data as static. */ 6219 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 6220 # define START_MY_CXT 6221 # define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY) 6222 # define MY_CXT_INIT_ARG MY_CXT_KEY 6223 # else 6224 # define START_MY_CXT static int my_cxt_index = -1; 6225 # define MY_CXT_INDEX my_cxt_index 6226 # define MY_CXT_INIT_ARG &my_cxt_index 6227 # endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */ 6228 6229 /* Creates and zeroes the per-interpreter data. 6230 * (We allocate my_cxtp in a Perl SV so that it will be released when 6231 * the interpreter goes away.) */ 6232 # define MY_CXT_INIT \ 6233 my_cxt_t *my_cxtp = \ 6234 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \ 6235 PERL_UNUSED_VAR(my_cxtp) 6236 # define MY_CXT_INIT_INTERP(my_perl) \ 6237 my_cxt_t *my_cxtp = \ 6238 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \ 6239 PERL_UNUSED_VAR(my_cxtp) 6240 6241 /* This declaration should be used within all functions that use the 6242 * interpreter-local data. */ 6243 # define dMY_CXT \ 6244 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX] 6245 # define dMY_CXT_INTERP(my_perl) \ 6246 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX] 6247 6248 /* Clones the per-interpreter data. */ 6249 # define MY_CXT_CLONE \ 6250 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\ 6251 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \ 6252 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \ 6253 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t); 6254 6255 6256 6257 /* This macro must be used to access members of the my_cxt_t structure. 6258 * e.g. MY_CXT.some_data */ 6259 # define MY_CXT (*my_cxtp) 6260 6261 /* Judicious use of these macros can reduce the number of times dMY_CXT 6262 * is used. Use is similar to pTHX, aTHX etc. */ 6263 # define pMY_CXT my_cxt_t *my_cxtp 6264 # define pMY_CXT_ pMY_CXT, 6265 # define _pMY_CXT ,pMY_CXT 6266 # define aMY_CXT my_cxtp 6267 # define aMY_CXT_ aMY_CXT, 6268 # define _aMY_CXT ,aMY_CXT 6269 6270 #else /* PERL_IMPLICIT_CONTEXT */ 6271 6272 # define START_MY_CXT static my_cxt_t my_cxt; 6273 # define dMY_CXT_SV dNOOP 6274 # define dMY_CXT dNOOP 6275 # define dMY_CXT_INTERP(my_perl) dNOOP 6276 # define MY_CXT_INIT NOOP 6277 # define MY_CXT_CLONE NOOP 6278 # define MY_CXT my_cxt 6279 6280 # define pMY_CXT void 6281 # define pMY_CXT_ 6282 # define _pMY_CXT 6283 # define aMY_CXT 6284 # define aMY_CXT_ 6285 # define _aMY_CXT 6286 6287 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */ 6288 6289 #ifdef I_FCNTL 6290 # include <fcntl.h> 6291 #endif 6292 6293 #ifdef __Lynx__ 6294 # include <fcntl.h> 6295 #endif 6296 6297 #ifdef __amigaos4__ 6298 # undef FD_CLOEXEC /* a lie in AmigaOS */ 6299 #endif 6300 6301 #ifdef I_SYS_FILE 6302 # include <sys/file.h> 6303 #endif 6304 6305 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO) 6306 int flock(int fd, int op); 6307 #endif 6308 6309 #ifndef O_RDONLY 6310 /* Assume UNIX defaults */ 6311 # define O_RDONLY 0000 6312 # define O_WRONLY 0001 6313 # define O_RDWR 0002 6314 # define O_CREAT 0100 6315 #endif 6316 6317 #ifndef O_BINARY 6318 # define O_BINARY 0 6319 #endif 6320 6321 #ifndef O_TEXT 6322 # define O_TEXT 0 6323 #endif 6324 6325 #if O_TEXT != O_BINARY 6326 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop, 6327 * that is, you are somehow DOSish. */ 6328 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__) 6329 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect; 6330 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */ 6331 /* VOS has O_TEXT != O_BINARY, and they have effect, 6332 * but VOS always uses LF, never CRLF. */ 6333 /* If you have O_TEXT different from your O_BINARY but you still are 6334 * not a CRLF shop. */ 6335 # undef PERLIO_USING_CRLF 6336 # else 6337 /* If you really are DOSish. */ 6338 # define PERLIO_USING_CRLF 1 6339 # endif 6340 #endif 6341 6342 #ifdef I_LIBUTIL 6343 # include <libutil.h> /* setproctitle() in some FreeBSDs */ 6344 #endif 6345 6346 #ifndef EXEC_ARGV_CAST 6347 #define EXEC_ARGV_CAST(x) (char **)x 6348 #endif 6349 6350 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not 6351 int). value returned in pointed- 6352 to UV */ 6353 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */ 6354 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */ 6355 #define IS_NUMBER_NEG 0x08 /* leading minus sign */ 6356 #define IS_NUMBER_INFINITY 0x10 /* this is big */ 6357 #define IS_NUMBER_NAN 0x20 /* this is not */ 6358 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */ 6359 6360 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send) 6361 6362 /* Input flags: */ 6363 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */ 6364 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */ 6365 #define PERL_SCAN_SILENT_ILLDIGIT 0x04 /* grok_??? not warn about illegal digits */ 6366 #define PERL_SCAN_SILENT_NON_PORTABLE 0x08 /* grok_??? not warn about very large 6367 numbers which are <= UV_MAX */ 6368 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing 6369 and set IS_NUMBER_TRAILING */ 6370 6371 /* Output flags: */ 6372 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x02 /* should this merge with above? */ 6373 6374 /* to let user control profiling */ 6375 #ifdef PERL_GPROF_CONTROL 6376 extern void moncontrol(int); 6377 #define PERL_GPROF_MONCONTROL(x) moncontrol(x) 6378 #else 6379 #define PERL_GPROF_MONCONTROL(x) 6380 #endif 6381 6382 #ifdef UNDER_CE 6383 #include "wince.h" 6384 #endif 6385 6386 /* ISO 6429 NEL - C1 control NExt Line */ 6387 /* See http://www.unicode.org/unicode/reports/tr13/ */ 6388 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE 6389 6390 #ifndef PIPESOCK_MODE 6391 # define PIPESOCK_MODE 6392 #endif 6393 6394 #ifndef SOCKET_OPEN_MODE 6395 # define SOCKET_OPEN_MODE PIPESOCK_MODE 6396 #endif 6397 6398 #ifndef PIPE_OPEN_MODE 6399 # define PIPE_OPEN_MODE PIPESOCK_MODE 6400 #endif 6401 6402 #define PERL_MAGIC_UTF8_CACHESIZE 2 6403 6404 #define PERL_UNICODE_STDIN_FLAG 0x0001 6405 #define PERL_UNICODE_STDOUT_FLAG 0x0002 6406 #define PERL_UNICODE_STDERR_FLAG 0x0004 6407 #define PERL_UNICODE_IN_FLAG 0x0008 6408 #define PERL_UNICODE_OUT_FLAG 0x0010 6409 #define PERL_UNICODE_ARGV_FLAG 0x0020 6410 #define PERL_UNICODE_LOCALE_FLAG 0x0040 6411 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */ 6412 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100 6413 6414 #define PERL_UNICODE_STD_FLAG \ 6415 (PERL_UNICODE_STDIN_FLAG | \ 6416 PERL_UNICODE_STDOUT_FLAG | \ 6417 PERL_UNICODE_STDERR_FLAG) 6418 6419 #define PERL_UNICODE_INOUT_FLAG \ 6420 (PERL_UNICODE_IN_FLAG | \ 6421 PERL_UNICODE_OUT_FLAG) 6422 6423 #define PERL_UNICODE_DEFAULT_FLAGS \ 6424 (PERL_UNICODE_STD_FLAG | \ 6425 PERL_UNICODE_INOUT_FLAG | \ 6426 PERL_UNICODE_LOCALE_FLAG) 6427 6428 #define PERL_UNICODE_ALL_FLAGS 0x01ff 6429 6430 #define PERL_UNICODE_STDIN 'I' 6431 #define PERL_UNICODE_STDOUT 'O' 6432 #define PERL_UNICODE_STDERR 'E' 6433 #define PERL_UNICODE_STD 'S' 6434 #define PERL_UNICODE_IN 'i' 6435 #define PERL_UNICODE_OUT 'o' 6436 #define PERL_UNICODE_INOUT 'D' 6437 #define PERL_UNICODE_ARGV 'A' 6438 #define PERL_UNICODE_LOCALE 'L' 6439 #define PERL_UNICODE_WIDESYSCALLS 'W' 6440 #define PERL_UNICODE_UTF8CACHEASSERT 'a' 6441 6442 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001 6443 6444 /* Use instead of abs() since abs() forces its argument to be an int, 6445 * but also beware since this evaluates its argument twice, so no x++. */ 6446 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x)) 6447 6448 #if defined(__DECC) && defined(__osf__) 6449 #pragma message disable (mainparm) /* Perl uses the envp in main(). */ 6450 #endif 6451 6452 #define do_open(g, n, l, a, rm, rp, sf) \ 6453 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0) 6454 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION 6455 # define do_exec(cmd) do_exec3(cmd,0,0) 6456 #endif 6457 #ifdef OS2 6458 # define do_aexec Perl_do_aexec 6459 #else 6460 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0) 6461 #endif 6462 6463 /* check embedded \0 characters in pathnames passed to syscalls, 6464 but allow one ending \0 */ 6465 #define IS_SAFE_SYSCALL(p, len, what, op_name) (S_is_safe_syscall(aTHX_ (p), (len), (what), (op_name))) 6466 6467 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name)) 6468 6469 #if defined(OEMVS) || defined(__amigaos4__) 6470 #define NO_ENV_ARRAY_IN_MAIN 6471 #endif 6472 6473 /* These are used by Perl_pv_escape() and Perl_pv_pretty() 6474 * are here so that they are available throughout the core 6475 * NOTE that even though some are for _escape and some for _pretty 6476 * there must not be any clashes as the flags from _pretty are 6477 * passed straight through to _escape. 6478 */ 6479 6480 #define PERL_PV_ESCAPE_QUOTE 0x000001 6481 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE 6482 6483 #define PERL_PV_PRETTY_ELLIPSES 0x000002 6484 #define PERL_PV_PRETTY_LTGT 0x000004 6485 #define PERL_PV_PRETTY_EXACTSIZE 0x000008 6486 6487 #define PERL_PV_ESCAPE_UNI 0x000100 6488 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200 6489 #define PERL_PV_ESCAPE_NONASCII 0x000400 6490 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800 6491 6492 #define PERL_PV_ESCAPE_ALL 0x001000 6493 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000 6494 #define PERL_PV_ESCAPE_NOCLEAR 0x004000 6495 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR 6496 #define PERL_PV_ESCAPE_RE 0x008000 6497 6498 #define PERL_PV_ESCAPE_DWIM 0x010000 6499 6500 6501 /* used by pv_display in dump.c*/ 6502 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE 6503 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII 6504 6505 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \ 6506 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \ 6507 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT 6508 # define DOUBLE_IS_VAX_FLOAT 6509 #else 6510 # define DOUBLE_IS_IEEE_FORMAT 6511 #endif 6512 6513 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \ 6514 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \ 6515 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 6516 # define DOUBLE_LITTLE_ENDIAN 6517 #endif 6518 6519 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \ 6520 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \ 6521 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 6522 # define DOUBLE_BIG_ENDIAN 6523 #endif 6524 6525 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \ 6526 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 6527 # define DOUBLE_MIX_ENDIAN 6528 #endif 6529 6530 /* The VAX fp formats are neither consistently little-endian nor 6531 * big-endian, and neither are they really IEEE-mixed endian like 6532 * the mixed-endian ARM IEEE formats (with swapped bytes). 6533 * Ultimately, the VAX format came from the PDP-11. 6534 * 6535 * The ordering of the parts in VAX floats is quite vexing. 6536 * In the below the fraction_n are the mantissa bits. 6537 * 6538 * The fraction_1 is the most significant (numbering as by DEC/Digital), 6539 * while the rightmost bit in each fraction is the least significant: 6540 * in other words, big-endian bit order within the fractions. 6541 * 6542 * The fraction segments themselves would be big-endianly, except that 6543 * within 32 bit segments the less significant half comes first, the more 6544 * significant after, except that in the format H (used for long doubles) 6545 * the first fraction segment is alone, because the exponent is wider. 6546 * This means for example that both the most and the least significant 6547 * bits can be in the middle of the floats, not at either end. 6548 * 6549 * References: 6550 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm 6551 * http://www.quadibloc.com/comp/cp0201.htm 6552 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html 6553 * (somebody at HP should be fired for the URLs) 6554 * 6555 * F fraction_2:16 sign:1 exp:8 fraction_1:7 6556 * (exponent bias 128, hidden first one-bit) 6557 * 6558 * D fraction_2:16 sign:1 exp:8 fraction_1:7 6559 * fraction_4:16 fraction_3:16 6560 * (exponent bias 128, hidden first one-bit) 6561 * 6562 * G fraction_2:16 sign:1 exp:11 fraction_1:4 6563 * fraction_4:16 fraction_3:16 6564 * (exponent bias 1024, hidden first one-bit) 6565 * 6566 * H fraction_1:16 sign:1 exp:15 6567 * fraction_3:16 fraction_2:16 6568 * fraction_5:16 fraction_4:16 6569 * fraction_7:16 fraction_6:16 6570 * (exponent bias 16384, hidden first one-bit) 6571 * (available only on VAX, and only on Fortran?) 6572 * 6573 * The formats S, T and X are available on the Alpha (and Itanium, 6574 * also known as I64/IA64) and are equivalent with the IEEE-754 formats 6575 * binary32, binary64, and binary128 (commonly: float, double, long double). 6576 * 6577 * S sign:1 exp:8 mantissa:23 6578 * (exponent bias 127, hidden first one-bit) 6579 * 6580 * T sign:1 exp:11 mantissa:52 6581 * (exponent bias 1022, hidden first one-bit) 6582 * 6583 * X sign:1 exp:15 mantissa:112 6584 * (exponent bias 16382, hidden first one-bit) 6585 * 6586 */ 6587 6588 #ifdef DOUBLE_IS_VAX_FLOAT 6589 # define DOUBLE_VAX_ENDIAN 6590 #endif 6591 6592 #ifdef DOUBLE_IS_IEEE_FORMAT 6593 /* All the basic IEEE formats have the implicit bit, 6594 * except for the x86 80-bit extended formats, which will undef this. 6595 * Also note that the IEEE 754 subnormals (formerly known as denormals) 6596 * do not have the implicit bit of one. */ 6597 # define NV_IMPLICIT_BIT 6598 #endif 6599 6600 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE 6601 6602 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \ 6603 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 6604 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 6605 # define LONGDOUBLE_LITTLE_ENDIAN 6606 # endif 6607 6608 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \ 6609 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \ 6610 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 6611 # define LONGDOUBLE_BIG_ENDIAN 6612 # endif 6613 6614 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 6615 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 6616 # define LONGDOUBLE_MIX_ENDIAN 6617 # endif 6618 6619 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 6620 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 6621 # define LONGDOUBLE_X86_80_BIT 6622 # ifdef USE_LONG_DOUBLE 6623 # undef NV_IMPLICIT_BIT 6624 # define NV_X86_80_BIT 6625 # endif 6626 # endif 6627 6628 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \ 6629 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \ 6630 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 6631 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 6632 # define LONGDOUBLE_DOUBLEDOUBLE 6633 # endif 6634 6635 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT 6636 # define LONGDOUBLE_VAX_ENDIAN 6637 # endif 6638 6639 #endif /* LONG_DOUBLEKIND */ 6640 6641 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */ 6642 # if defined(DOUBLE_LITTLE_ENDIAN) 6643 # define NV_LITTLE_ENDIAN 6644 # elif defined(DOUBLE_BIG_ENDIAN) 6645 # define NV_BIG_ENDIAN 6646 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */ 6647 # define NV_MIX_ENDIAN 6648 # endif 6649 #elif NVSIZE == DOUBLESIZE 6650 # ifdef DOUBLE_LITTLE_ENDIAN 6651 # define NV_LITTLE_ENDIAN 6652 # endif 6653 # ifdef DOUBLE_BIG_ENDIAN 6654 # define NV_BIG_ENDIAN 6655 # endif 6656 # ifdef DOUBLE_MIX_ENDIAN 6657 # define NV_MIX_ENDIAN 6658 # endif 6659 # ifdef DOUBLE_VAX_ENDIAN 6660 # define NV_VAX_ENDIAN 6661 # endif 6662 #elif NVSIZE == LONG_DOUBLESIZE 6663 # ifdef LONGDOUBLE_LITTLE_ENDIAN 6664 # define NV_LITTLE_ENDIAN 6665 # endif 6666 # ifdef LONGDOUBLE_BIG_ENDIAN 6667 # define NV_BIG_ENDIAN 6668 # endif 6669 # ifdef LONGDOUBLE_MIX_ENDIAN 6670 # define NV_MIX_ENDIAN 6671 # endif 6672 # ifdef LONGDOUBLE_VAX_ENDIAN 6673 # define NV_VAX_ENDIAN 6674 # endif 6675 #endif 6676 6677 /* We have somehow managed not to define the denormal/subnormal 6678 * detection. 6679 * 6680 * This may happen if the compiler doesn't expose the C99 math like 6681 * the fpclassify() without some special switches. Perl tries to 6682 * stay C89, so for example -std=c99 is not an option. 6683 * 6684 * The Perl_isinf() and Perl_isnan() should have been defined even if 6685 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes 6686 * from the C89 DBL_MIN or moral equivalent. */ 6687 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN) 6688 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN) 6689 #endif 6690 6691 /* This is not a great fallback: subnormals tests will fail, 6692 * but at least Perl will link and 99.999% of tests will work. */ 6693 #if !defined(Perl_fp_class_denorm) 6694 # define Perl_fp_class_denorm(x) FALSE 6695 #endif 6696 6697 #ifdef DOUBLE_IS_IEEE_FORMAT 6698 # define DOUBLE_HAS_INF 6699 # define DOUBLE_HAS_NAN 6700 #endif 6701 6702 #ifdef DOUBLE_HAS_NAN 6703 6704 START_EXTERN_C 6705 6706 #ifdef DOINIT 6707 6708 /* PL_inf and PL_nan initialization. 6709 * 6710 * For inf and nan initialization the ultimate fallback is dividing 6711 * one or zero by zero: however, some compilers will warn or even fail 6712 * on divide-by-zero, but hopefully something earlier will work. 6713 * 6714 * If you are thinking of using HUGE_VAL for infinity, or using 6715 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)), 6716 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX, 6717 * and the math functions might be just generating DBL_MAX, or even zero. 6718 * 6719 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF). 6720 * Though logically correct, some compilers (like Visual C 2003) 6721 * falsely misoptimize that to zero (x-x is always zero, right?) 6722 * 6723 * Finally, note that not all floating point formats define Inf (or NaN). 6724 * For the infinity a large number may be used instead. Operations that 6725 * under the IEEE floating point would return Inf or NaN may return 6726 * either large numbers (positive or negative), or they may cause 6727 * a floating point exception or some other fault. 6728 */ 6729 6730 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */ 6731 GCC_DIAG_IGNORE_DECL(-Wc++-compat); 6732 6733 # ifdef USE_QUADMATH 6734 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time 6735 * constant. */ 6736 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q }; 6737 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES) 6738 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } }; 6739 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES) 6740 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } }; 6741 # else 6742 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE) 6743 # if defined(LDBL_INFINITY) 6744 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY }; 6745 # elif defined(LDBL_INF) 6746 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF }; 6747 # elif defined(INFINITY) 6748 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY }; 6749 # elif defined(INF) 6750 INFNAN_NV_U8_DECL PL_inf = { (NV)INF }; 6751 # else 6752 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */ 6753 # endif 6754 # else 6755 # if defined(DBL_INFINITY) 6756 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY }; 6757 # elif defined(DBL_INF) 6758 INFNAN_NV_U8_DECL PL_inf = { DBL_INF }; 6759 # elif defined(INFINITY) /* C99 */ 6760 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY }; 6761 # elif defined(INF) 6762 INFNAN_NV_U8_DECL PL_inf = { (NV)INF }; 6763 # else 6764 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */ 6765 # endif 6766 # endif 6767 # endif 6768 6769 # ifdef USE_QUADMATH 6770 /* Cannot use nanq("0") for PL_nan because not a compile-time 6771 * constant. */ 6772 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q }; 6773 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES) 6774 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } }; 6775 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES) 6776 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } }; 6777 # else 6778 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE) 6779 # if defined(LDBL_NAN) 6780 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN }; 6781 # elif defined(LDBL_QNAN) 6782 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN }; 6783 # elif defined(NAN) 6784 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN }; 6785 # else 6786 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */ 6787 # endif 6788 # else 6789 # if defined(DBL_NAN) 6790 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN }; 6791 # elif defined(DBL_QNAN) 6792 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN }; 6793 # elif defined(NAN) /* C99 */ 6794 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN }; 6795 # else 6796 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */ 6797 # endif 6798 # endif 6799 # endif 6800 6801 GCC_DIAG_RESTORE_DECL; 6802 6803 #else 6804 6805 INFNAN_NV_U8_DECL PL_inf; 6806 INFNAN_NV_U8_DECL PL_nan; 6807 6808 #endif 6809 6810 END_EXTERN_C 6811 6812 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h), 6813 * we will define NV_INF/NV_NAN as the nv part of the global const 6814 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN 6815 * might not be a compile-time constant, in which case it cannot be 6816 * used to initialize PL_inf/PL_nan above. */ 6817 #ifndef NV_INF 6818 # define NV_INF PL_inf.nv 6819 #endif 6820 #ifndef NV_NAN 6821 # define NV_NAN PL_nan.nv 6822 #endif 6823 6824 /* NaNs (not-a-numbers) can carry payload bits, in addition to 6825 * "nan-ness". Part of the payload is the quiet/signaling bit. 6826 * To back up a bit (harhar): 6827 * 6828 * For IEEE 754 64-bit formats [1]: 6829 * 6830 * s 000 (mantissa all-zero) zero 6831 * s 000 (mantissa non-zero) subnormals (denormals) 6832 * s 001 ... 7fe normals 6833 * s 7ff q nan 6834 * 6835 * For IEEE 754 128-bit formats: 6836 * 6837 * s 0000 (mantissa all-zero) zero 6838 * s 0000 (mantissa non-zero) subnormals (denormals) 6839 * s 0001 ... 7ffe normals 6840 * s 7fff q nan 6841 * 6842 * [1] this looks like big-endian, but applies equally to little-endian. 6843 * 6844 * s = Sign bit. Yes, zeros and nans can have negative sign, 6845 * the interpretation is application-specific. 6846 * 6847 * q = Quietness bit, the interpretation is platform-specific. 6848 * Most platforms have the most significant bit being one 6849 * meaning quiet, but some (older mips, hppa) have the msb 6850 * being one meaning signaling. Note that the above means 6851 * that on most platforms there cannot be signaling nan with 6852 * zero payload because that is identical with infinity; 6853 * while conversely on older mips/hppa there cannot be a quiet nan 6854 * because that is identical with infinity. 6855 * 6856 * Moreover, whether there is any behavioral difference 6857 * between quiet and signaling NaNs, depends on the platform. 6858 * 6859 * x86 80-bit extended precision is different, the mantissa bits: 6860 * 6861 * 63 62 61 30387+ pre-387 visual c 6862 * -------- ---- -------- -------- 6863 * 0 0 0 invalid infinity 6864 * 0 0 1 invalid snan 6865 * 0 1 0 invalid snan 6866 * 0 1 1 invalid snan 6867 * 1 0 0 infinity snan 1.#INF 6868 * 1 0 1 snan 1.#SNAN 6869 * 1 1 0 qnan -1.#IND (x86 chooses this to negative) 6870 * 1 1 1 qnan 1.#QNAN 6871 * 6872 * This means that in this format there are 61 bits available 6873 * for the nan payload. 6874 * 6875 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87 6876 * simply cannot preserve the bit. You can either use the 80-bit 6877 * extended precision (long double, -Duselongdouble), or use x86-64. 6878 * 6879 * In all platforms, the payload bytes (and bits, some of them are 6880 * often in a partial byte) themselves can be either all zero (x86), 6881 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double 6882 * or in a double-double, the first half of the payload can follow the 6883 * native double, while in the second half the payload can be all 6884 * zeros. (Therefore the mask for payload bits is not necessarily 6885 * identical to bit complement of the NaN.) Another way of putting 6886 * this: the payload for the default NaN might not be zero. 6887 * 6888 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits 6889 * being 'packaged' in either 12 or 16 bytes) can be whatever random 6890 * garbage. 6891 * 6892 * Furthermore, the semantics of the sign bit on NaNs are platform-specific. 6893 * On normal floats, the sign bit being on means negative. But this may, 6894 * or may not, be reverted on NaNs: in other words, the default NaN might 6895 * have the sign bit on, and therefore look like negative if you look 6896 * at it at the bit level. 6897 * 6898 * NaN payloads are not propagated even on copies, or in arithmetics. 6899 * They *might* be, according to some rules, on your particular 6900 * cpu/os/compiler/libraries, but no guarantees. 6901 * 6902 * To summarize, on most platforms, and for 64-bit doubles 6903 * (using big-endian ordering here): 6904 * 6905 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet 6906 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet 6907 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling 6908 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling 6909 * 6910 * The C99 nan() is supposed to generate *quiet* NaNs. 6911 * 6912 * Note the asymmetry: 6913 * The 7FF0000000000000 is positive infinity, 6914 * the FFF0000000000000 is negative infinity. 6915 */ 6916 6917 /* NVMANTBITS is the number of _real_ mantissa bits in an NV. 6918 * For the standard IEEE 754 fp this number is usually one less that 6919 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't 6920 * real. For the 80-bit extended precision formats (x86*), the number 6921 * of mantissa bits... depends. For normal floats, it's 64. But for 6922 * the inf/nan, it's different (zero for inf, 61 for nan). 6923 * NVMANTBITS works for normal floats. */ 6924 6925 /* We do not want to include the quiet/signaling bit. */ 6926 #define NV_NAN_BITS (NVMANTBITS - 1) 6927 6928 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE 6929 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 6930 # define NV_NAN_QS_BYTE_OFFSET 13 6931 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 6932 # define NV_NAN_QS_BYTE_OFFSET 2 6933 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN 6934 # define NV_NAN_QS_BYTE_OFFSET 7 6935 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 6936 # define NV_NAN_QS_BYTE_OFFSET 2 6937 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 6938 # define NV_NAN_QS_BYTE_OFFSET 13 6939 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 6940 # define NV_NAN_QS_BYTE_OFFSET 1 6941 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE 6942 # define NV_NAN_QS_BYTE_OFFSET 9 6943 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 6944 # define NV_NAN_QS_BYTE_OFFSET 6 6945 # else 6946 # error "Unexpected long double format" 6947 # endif 6948 #else 6949 # ifdef USE_QUADMATH 6950 # ifdef NV_LITTLE_ENDIAN 6951 # define NV_NAN_QS_BYTE_OFFSET 13 6952 # elif defined(NV_BIG_ENDIAN) 6953 # define NV_NAN_QS_BYTE_OFFSET 2 6954 # else 6955 # error "Unexpected quadmath format" 6956 # endif 6957 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN 6958 # define NV_NAN_QS_BYTE_OFFSET 2 6959 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN 6960 # define NV_NAN_QS_BYTE_OFFSET 1 6961 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN 6962 # define NV_NAN_QS_BYTE_OFFSET 6 6963 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN 6964 # define NV_NAN_QS_BYTE_OFFSET 1 6965 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 6966 # define NV_NAN_QS_BYTE_OFFSET 13 6967 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 6968 # define NV_NAN_QS_BYTE_OFFSET 2 6969 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE 6970 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */ 6971 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 6972 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */ 6973 # else 6974 /* For example the VAX formats should never 6975 * get here because they do not have NaN. */ 6976 # error "Unexpected double format" 6977 # endif 6978 #endif 6979 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */ 6980 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET]) 6981 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET 6982 * for the quiet/signaling */ 6983 #if defined(USE_LONG_DOUBLE) && \ 6984 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 6985 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN) 6986 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */ 6987 #elif defined(USE_LONG_DOUBLE) && \ 6988 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \ 6989 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \ 6990 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 6991 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE) 6992 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */ 6993 #else 6994 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */ 6995 #endif 6996 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT)) 6997 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV 6998 * (bytes ordered big-endianly) for the quiet/signaling bit 6999 * for the quiet/signaling */ 7000 #define NV_NAN_QS_BIT_OFFSET \ 7001 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT)) 7002 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being 7003 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined) 7004 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */ 7005 #define NV_NAN_QS_QUIET \ 7006 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT) 7007 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET)) 7008 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT) 7009 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN, 7010 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN. 7011 * Note however that these do not check whether the nvp is a NaN. */ 7012 #define NV_NAN_IS_QUIET(nvp) \ 7013 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0)) 7014 #define NV_NAN_IS_SIGNALING(nvp) \ 7015 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT)) 7016 #define NV_NAN_SET_QUIET(nvp) \ 7017 (NV_NAN_QS_QUIET ? \ 7018 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \ 7019 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT)) 7020 #define NV_NAN_SET_SIGNALING(nvp) \ 7021 (NV_NAN_QS_QUIET ? \ 7022 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \ 7023 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT)) 7024 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT) 7025 7026 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits. 7027 * 7028 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes. 7029 * 0xFF means "don't go here".*/ 7030 7031 /* Shorthands to avoid typoses. */ 7032 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \ 7033 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 7034 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \ 7035 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7036 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \ 7037 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7 7038 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \ 7039 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0 7040 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \ 7041 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7042 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00 7043 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \ 7044 NV_NAN_PAYLOAD_PERM_0_TO_7, \ 7045 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF 7046 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \ 7047 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7048 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7049 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \ 7050 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \ 7051 NV_NAN_PAYLOAD_PERM_7_TO_0 7052 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \ 7053 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00 7054 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \ 7055 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF 7056 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \ 7057 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7058 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \ 7059 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0 7060 7061 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE 7062 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7063 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 7064 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 7065 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7066 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 7067 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 7068 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN 7069 # if LONG_DOUBLESIZE == 10 7070 # define NV_NAN_PAYLOAD_MASK \ 7071 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7072 0x00, 0x00 7073 # define NV_NAN_PAYLOAD_PERM \ 7074 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF 7075 # elif LONG_DOUBLESIZE == 12 7076 # define NV_NAN_PAYLOAD_MASK \ 7077 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7078 0x00, 0x00, 0x00, 0x00 7079 # define NV_NAN_PAYLOAD_PERM \ 7080 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF 7081 # elif LONG_DOUBLESIZE == 16 7082 # define NV_NAN_PAYLOAD_MASK \ 7083 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7084 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 7085 # define NV_NAN_PAYLOAD_PERM \ 7086 NV_NAN_PAYLOAD_PERM_0_TO_7, \ 7087 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF 7088 # else 7089 # error "Unexpected x86 80-bit little-endian long double format" 7090 # endif 7091 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 7092 # if LONG_DOUBLESIZE == 10 7093 # define NV_NAN_PAYLOAD_MASK \ 7094 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7095 0xff, 0xff 7096 # define NV_NAN_PAYLOAD_PERM \ 7097 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF 7098 # elif LONG_DOUBLESIZE == 12 7099 # define NV_NAN_PAYLOAD_MASK \ 7100 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7101 0xff, 0xff, 0x00, 0x00 7102 # define NV_NAN_PAYLOAD_PERM \ 7103 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF 7104 # elif LONG_DOUBLESIZE == 16 7105 # define NV_NAN_PAYLOAD_MASK \ 7106 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7107 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 7108 # define NV_NAN_PAYLOAD_PERM \ 7109 NV_NAN_PAYLOAD_PERM_7_TO_0, \ 7110 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF 7111 # else 7112 # error "Unexpected x86 80-bit big-endian long double format" 7113 # endif 7114 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 7115 /* For double-double we assume only the first double (in LE or BE terms) 7116 * is used for NaN. */ 7117 # define NV_NAN_PAYLOAD_MASK \ 7118 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 7119 # define NV_NAN_PAYLOAD_PERM \ 7120 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 7121 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 7122 # define NV_NAN_PAYLOAD_MASK \ 7123 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 7124 # define NV_NAN_PAYLOAD_PERM \ 7125 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 7126 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE 7127 # define NV_NAN_PAYLOAD_MASK \ 7128 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 7129 # define NV_NAN_PAYLOAD_PERM \ 7130 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 7131 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7132 # define NV_NAN_PAYLOAD_MASK \ 7133 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 7134 # define NV_NAN_PAYLOAD_PERM \ 7135 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 7136 # else 7137 # error "Unexpected long double format" 7138 # endif 7139 #else 7140 # ifdef USE_QUADMATH /* quadmath is not long double */ 7141 # ifdef NV_LITTLE_ENDIAN 7142 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 7143 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 7144 # elif defined(NV_BIG_ENDIAN) 7145 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 7146 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 7147 # else 7148 # error "Unexpected quadmath format" 7149 # endif 7150 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN 7151 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00 7152 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF 7153 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN 7154 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff 7155 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0 7156 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN 7157 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 7158 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 7159 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN 7160 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 7161 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 7162 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7163 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 7164 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 7165 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7166 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 7167 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 7168 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE 7169 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff 7170 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3 7171 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 7172 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff 7173 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4 7174 # else 7175 # error "Unexpected double format" 7176 # endif 7177 #endif 7178 7179 #endif /* DOUBLE_HAS_NAN */ 7180 7181 7182 /* 7183 7184 (KEEP THIS LAST IN perl.h!) 7185 7186 Mention 7187 7188 NV_PRESERVES_UV 7189 7190 HAS_MKSTEMP 7191 HAS_MKSTEMPS 7192 HAS_MKDTEMP 7193 7194 HAS_GETCWD 7195 7196 HAS_MMAP 7197 HAS_MPROTECT 7198 HAS_MSYNC 7199 HAS_MADVISE 7200 HAS_MUNMAP 7201 I_SYSMMAN 7202 Mmap_t 7203 7204 NVef 7205 NVff 7206 NVgf 7207 7208 HAS_UALARM 7209 HAS_USLEEP 7210 7211 HAS_SETITIMER 7212 HAS_GETITIMER 7213 7214 HAS_SENDMSG 7215 HAS_RECVMSG 7216 HAS_READV 7217 HAS_WRITEV 7218 I_SYSUIO 7219 HAS_STRUCT_MSGHDR 7220 HAS_STRUCT_CMSGHDR 7221 7222 HAS_NL_LANGINFO 7223 7224 HAS_DIRFD 7225 7226 so that Configure picks them up. 7227 7228 (KEEP THIS LAST IN perl.h!) 7229 7230 */ 7231 7232 #endif /* Include guard */ 7233 7234 /* 7235 * ex: set ts=8 sts=4 sw=4 et: 7236 */ 7237