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1: #ifndef Py_PYPORT_H 2: #define Py_PYPORT_H 3: 4: #include "pyconfig.h" /* include for defines */ 5: 6: #include <inttypes.h> 7: 8: /************************************************************************** 9: Symbols and macros to supply platform-independent interfaces to basic 10: C language & library operations whose spellings vary across platforms. 11: 12: Please try to make documentation here as clear as possible: by definition, 13: the stuff here is trying to illuminate C's darkest corners. 14: 15: Config #defines referenced here: 16: 17: SIGNED_RIGHT_SHIFT_ZERO_FILLS 18: Meaning: To be defined iff i>>j does not extend the sign bit when i is a 19: signed integral type and i < 0. 20: Used in: Py_ARITHMETIC_RIGHT_SHIFT 21: 22: Py_DEBUG 23: Meaning: Extra checks compiled in for debug mode. 24: Used in: Py_SAFE_DOWNCAST 25: 26: **************************************************************************/ 27: 28: /* typedefs for some C9X-defined synonyms for integral types. 29: * 30: * The names in Python are exactly the same as the C9X names, except with a 31: * Py_ prefix. Until C9X is universally implemented, this is the only way 32: * to ensure that Python gets reliable names that don't conflict with names 33: * in non-Python code that are playing their own tricks to define the C9X 34: * names. 35: * 36: * NOTE: don't go nuts here! Python has no use for *most* of the C9X 37: * integral synonyms. Only define the ones we actually need. 38: */ 39: 40: /* long long is required. Ensure HAVE_LONG_LONG is defined for compatibility. */ 41: #ifndef HAVE_LONG_LONG 42: #define HAVE_LONG_LONG 1 43: #endif 44: #ifndef PY_LONG_LONG 45: #define PY_LONG_LONG long long 46: /* If LLONG_MAX is defined in limits.h, use that. */ 47: #define PY_LLONG_MIN LLONG_MIN 48: #define PY_LLONG_MAX LLONG_MAX 49: #define PY_ULLONG_MAX ULLONG_MAX 50: #endif 51: 52: #define PY_UINT32_T uint32_t 53: #define PY_UINT64_T uint64_t 54: 55: /* Signed variants of the above */ 56: #define PY_INT32_T int32_t 57: #define PY_INT64_T int64_t 58: 59: /* If PYLONG_BITS_IN_DIGIT is not defined then we'll use 30-bit digits if all 60: the necessary integer types are available, and we're on a 64-bit platform 61: (as determined by SIZEOF_VOID_P); otherwise we use 15-bit digits. */ 62: 63: #ifndef PYLONG_BITS_IN_DIGIT 64: #if SIZEOF_VOID_P >= 8 65: #define PYLONG_BITS_IN_DIGIT 30 66: #else 67: #define PYLONG_BITS_IN_DIGIT 15 68: #endif 69: #endif 70: 71: /* uintptr_t is the C9X name for an unsigned integral type such that a 72: * legitimate void* can be cast to uintptr_t and then back to void* again 73: * without loss of information. Similarly for intptr_t, wrt a signed 74: * integral type. 75: */ 76: typedef uintptr_t Py_uintptr_t; 77: typedef intptr_t Py_intptr_t; 78: 79: /* Py_ssize_t is a signed integral type such that sizeof(Py_ssize_t) == 80: * sizeof(size_t). C99 doesn't define such a thing directly (size_t is an 81: * unsigned integral type). See PEP 353 for details. 82: */ 83: #ifdef HAVE_SSIZE_T 84: typedef ssize_t Py_ssize_t; 85: #elif SIZEOF_VOID_P == SIZEOF_SIZE_T 86: typedef Py_intptr_t Py_ssize_t; 87: #else 88: # error "Python needs a typedef for Py_ssize_t in pyport.h." 89: #endif 90: 91: /* Py_hash_t is the same size as a pointer. */ 92: #define SIZEOF_PY_HASH_T SIZEOF_SIZE_T 93: typedef Py_ssize_t Py_hash_t; 94: /* Py_uhash_t is the unsigned equivalent needed to calculate numeric hash. */ 95: #define SIZEOF_PY_UHASH_T SIZEOF_SIZE_T 96: typedef size_t Py_uhash_t; 97: 98: /* Only used for compatibility with code that may not be PY_SSIZE_T_CLEAN. */ 99: #ifdef PY_SSIZE_T_CLEAN 100: typedef Py_ssize_t Py_ssize_clean_t; 101: #else 102: typedef int Py_ssize_clean_t; 103: #endif 104: 105: /* Largest possible value of size_t. */ 106: #define PY_SIZE_MAX SIZE_MAX 107: 108: /* Largest positive value of type Py_ssize_t. */ 109: #define PY_SSIZE_T_MAX ((Py_ssize_t)(((size_t)-1)>>1)) 110: /* Smallest negative value of type Py_ssize_t. */ 111: #define PY_SSIZE_T_MIN (-PY_SSIZE_T_MAX-1) 112: 113: /* PY_FORMAT_SIZE_T is a platform-specific modifier for use in a printf 114: * format to convert an argument with the width of a size_t or Py_ssize_t. 115: * C99 introduced "z" for this purpose, but not all platforms support that; 116: * e.g., MS compilers use "I" instead. 117: * 118: * These "high level" Python format functions interpret "z" correctly on 119: * all platforms (Python interprets the format string itself, and does whatever 120: * the platform C requires to convert a size_t/Py_ssize_t argument): 121: * 122: * PyBytes_FromFormat 123: * PyErr_Format 124: * PyBytes_FromFormatV 125: * PyUnicode_FromFormatV 126: * 127: * Lower-level uses require that you interpolate the correct format modifier 128: * yourself (e.g., calling printf, fprintf, sprintf, PyOS_snprintf); for 129: * example, 130: * 131: * Py_ssize_t index; 132: * fprintf(stderr, "index %" PY_FORMAT_SIZE_T "d sucks\n", index); 133: * 134: * That will expand to %ld, or %Id, or to something else correct for a 135: * Py_ssize_t on the platform. 136: */ 137: #ifndef PY_FORMAT_SIZE_T 138: # if SIZEOF_SIZE_T == SIZEOF_INT && !defined(__APPLE__) 139: # define PY_FORMAT_SIZE_T "" 140: # elif SIZEOF_SIZE_T == SIZEOF_LONG 141: # define PY_FORMAT_SIZE_T "l" 142: # elif defined(MS_WINDOWS) 143: # define PY_FORMAT_SIZE_T "I" 144: # else 145: # error "This platform's pyconfig.h needs to define PY_FORMAT_SIZE_T" 146: # endif 147: #endif 148: 149: /* Py_LOCAL can be used instead of static to get the fastest possible calling 150: * convention for functions that are local to a given module. 151: * 152: * Py_LOCAL_INLINE does the same thing, and also explicitly requests inlining, 153: * for platforms that support that. 154: * 155: * If PY_LOCAL_AGGRESSIVE is defined before python.h is included, more 156: * "aggressive" inlining/optimization is enabled for the entire module. This 157: * may lead to code bloat, and may slow things down for those reasons. It may 158: * also lead to errors, if the code relies on pointer aliasing. Use with 159: * care. 160: * 161: * NOTE: You can only use this for functions that are entirely local to a 162: * module; functions that are exported via method tables, callbacks, etc, 163: * should keep using static. 164: */ 165: 166: #if defined(_MSC_VER) 167: #if defined(PY_LOCAL_AGGRESSIVE) 168: /* enable more aggressive optimization for visual studio */ 169: #pragma optimize("agtw", on) 170: #endif 171: /* ignore warnings if the compiler decides not to inline a function */ 172: #pragma warning(disable: 4710) 173: /* fastest possible local call under MSVC */ 174: #define Py_LOCAL(type) static type __fastcall 175: #define Py_LOCAL_INLINE(type) static __inline type __fastcall 176: #elif defined(USE_INLINE) 177: #define Py_LOCAL(type) static type 178: #define Py_LOCAL_INLINE(type) static inline type 179: #else 180: #define Py_LOCAL(type) static type 181: #define Py_LOCAL_INLINE(type) static type 182: #endif 183: 184: /* Py_MEMCPY is kept for backwards compatibility, 185: * see https://bugs.python.org/issue28126 */ 186: #define Py_MEMCPY memcpy 187: 188: #include <stdlib.h> 189: 190: #ifdef HAVE_IEEEFP_H 191: #include <ieeefp.h> /* needed for 'finite' declaration on some platforms */ 192: #endif 193: 194: #include <math.h> /* Moved here from the math section, before extern "C" */ 195: 196: /******************************************** 197: * WRAPPER FOR <time.h> and/or <sys/time.h> * 198: ********************************************/ 199: 200: #ifdef TIME_WITH_SYS_TIME 201: #include <sys/time.h> 202: #include <time.h> 203: #else /* !TIME_WITH_SYS_TIME */ 204: #ifdef HAVE_SYS_TIME_H 205: #include <sys/time.h> 206: #else /* !HAVE_SYS_TIME_H */ 207: #include <time.h> 208: #endif /* !HAVE_SYS_TIME_H */ 209: #endif /* !TIME_WITH_SYS_TIME */ 210: 211: 212: /****************************** 213: * WRAPPER FOR <sys/select.h> * 214: ******************************/ 215: 216: /* NB caller must include <sys/types.h> */ 217: 218: #ifdef HAVE_SYS_SELECT_H 219: #include <sys/select.h> 220: #endif /* !HAVE_SYS_SELECT_H */ 221: 222: /******************************* 223: * stat() and fstat() fiddling * 224: *******************************/ 225: 226: #ifdef HAVE_SYS_STAT_H 227: #include <sys/stat.h> 228: #elif defined(HAVE_STAT_H) 229: #include <stat.h> 230: #endif 231: 232: #ifndef S_IFMT 233: /* VisualAge C/C++ Failed to Define MountType Field in sys/stat.h */ 234: #define S_IFMT 0170000 235: #endif 236: 237: #ifndef S_IFLNK 238: /* Windows doesn't define S_IFLNK but posixmodule.c maps 239: * IO_REPARSE_TAG_SYMLINK to S_IFLNK */ 240: # define S_IFLNK 0120000 241: #endif 242: 243: #ifndef S_ISREG 244: #define S_ISREG(x) (((x) & S_IFMT) == S_IFREG) 245: #endif 246: 247: #ifndef S_ISDIR 248: #define S_ISDIR(x) (((x) & S_IFMT) == S_IFDIR) 249: #endif 250: 251: #ifndef S_ISCHR 252: #define S_ISCHR(x) (((x) & S_IFMT) == S_IFCHR) 253: #endif 254: 255: #ifdef __cplusplus 256: /* Move this down here since some C++ #include's don't like to be included 257: inside an extern "C" */ 258: extern "C" { 259: #endif 260: 261: 262: /* Py_ARITHMETIC_RIGHT_SHIFT 263: * C doesn't define whether a right-shift of a signed integer sign-extends 264: * or zero-fills. Here a macro to force sign extension: 265: * Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) 266: * Return I >> J, forcing sign extension. Arithmetically, return the 267: * floor of I/2**J. 268: * Requirements: 269: * I should have signed integer type. In the terminology of C99, this can 270: * be either one of the five standard signed integer types (signed char, 271: * short, int, long, long long) or an extended signed integer type. 272: * J is an integer >= 0 and strictly less than the number of bits in the 273: * type of I (because C doesn't define what happens for J outside that 274: * range either). 275: * TYPE used to specify the type of I, but is now ignored. It's been left 276: * in for backwards compatibility with versions <= 2.6 or 3.0. 277: * Caution: 278: * I may be evaluated more than once. 279: */ 280: #ifdef SIGNED_RIGHT_SHIFT_ZERO_FILLS 281: #define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) \ 282: ((I) < 0 ? -1-((-1-(I)) >> (J)) : (I) >> (J)) 283: #else 284: #define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) ((I) >> (J)) 285: #endif 286: 287: /* Py_FORCE_EXPANSION(X) 288: * "Simply" returns its argument. However, macro expansions within the 289: * argument are evaluated. This unfortunate trickery is needed to get 290: * token-pasting to work as desired in some cases. 291: */ 292: #define Py_FORCE_EXPANSION(X) X 293: 294: /* Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) 295: * Cast VALUE to type NARROW from type WIDE. In Py_DEBUG mode, this 296: * assert-fails if any information is lost. 297: * Caution: 298: * VALUE may be evaluated more than once. 299: */ 300: #ifdef Py_DEBUG 301: #define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) \ 302: (assert((WIDE)(NARROW)(VALUE) == (VALUE)), (NARROW)(VALUE)) 303: #else 304: #define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) (NARROW)(VALUE) 305: #endif 306: 307: /* Py_SET_ERRNO_ON_MATH_ERROR(x) 308: * If a libm function did not set errno, but it looks like the result 309: * overflowed or not-a-number, set errno to ERANGE or EDOM. Set errno 310: * to 0 before calling a libm function, and invoke this macro after, 311: * passing the function result. 312: * Caution: 313: * This isn't reliable. See Py_OVERFLOWED comments. 314: * X is evaluated more than once. 315: */ 316: #if defined(__FreeBSD__) || defined(__OpenBSD__) || (defined(__hpux) && defined(__ia64)) 317: #define _Py_SET_EDOM_FOR_NAN(X) if (isnan(X)) errno = EDOM; 318: #else 319: #define _Py_SET_EDOM_FOR_NAN(X) ; 320: #endif 321: #define Py_SET_ERRNO_ON_MATH_ERROR(X) \ 322: do { \ 323: if (errno == 0) { \ 324: if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL) \ 325: errno = ERANGE; \ 326: else _Py_SET_EDOM_FOR_NAN(X) \ 327: } \ 328: } while(0) 329: 330: /* Py_SET_ERANGE_ON_OVERFLOW(x) 331: * An alias of Py_SET_ERRNO_ON_MATH_ERROR for backward-compatibility. 332: */ 333: #define Py_SET_ERANGE_IF_OVERFLOW(X) Py_SET_ERRNO_ON_MATH_ERROR(X) 334: 335: /* Py_ADJUST_ERANGE1(x) 336: * Py_ADJUST_ERANGE2(x, y) 337: * Set errno to 0 before calling a libm function, and invoke one of these 338: * macros after, passing the function result(s) (Py_ADJUST_ERANGE2 is useful 339: * for functions returning complex results). This makes two kinds of 340: * adjustments to errno: (A) If it looks like the platform libm set 341: * errno=ERANGE due to underflow, clear errno. (B) If it looks like the 342: * platform libm overflowed but didn't set errno, force errno to ERANGE. In 343: * effect, we're trying to force a useful implementation of C89 errno 344: * behavior. 345: * Caution: 346: * This isn't reliable. See Py_OVERFLOWED comments. 347: * X and Y may be evaluated more than once. 348: */ 349: #define Py_ADJUST_ERANGE1(X) \ 350: do { \ 351: if (errno == 0) { \ 352: if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL) \ 353: errno = ERANGE; \ 354: } \ 355: else if (errno == ERANGE && (X) == 0.0) \ 356: errno = 0; \ 357: } while(0) 358: 359: #define Py_ADJUST_ERANGE2(X, Y) \ 360: do { \ 361: if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL || \ 362: (Y) == Py_HUGE_VAL || (Y) == -Py_HUGE_VAL) { \ 363: if (errno == 0) \ 364: errno = ERANGE; \ 365: } \ 366: else if (errno == ERANGE) \ 367: errno = 0; \ 368: } while(0) 369: 370: /* The functions _Py_dg_strtod and _Py_dg_dtoa in Python/dtoa.c (which are 371: * required to support the short float repr introduced in Python 3.1) require 372: * that the floating-point unit that's being used for arithmetic operations 373: * on C doubles is set to use 53-bit precision. It also requires that the 374: * FPU rounding mode is round-half-to-even, but that's less often an issue. 375: * 376: * If your FPU isn't already set to 53-bit precision/round-half-to-even, and 377: * you want to make use of _Py_dg_strtod and _Py_dg_dtoa, then you should 378: * 379: * #define HAVE_PY_SET_53BIT_PRECISION 1 380: * 381: * and also give appropriate definitions for the following three macros: 382: * 383: * _PY_SET_53BIT_PRECISION_START : store original FPU settings, and 384: * set FPU to 53-bit precision/round-half-to-even 385: * _PY_SET_53BIT_PRECISION_END : restore original FPU settings 386: * _PY_SET_53BIT_PRECISION_HEADER : any variable declarations needed to 387: * use the two macros above. 388: * 389: * The macros are designed to be used within a single C function: see 390: * Python/pystrtod.c for an example of their use. 391: */ 392: 393: /* get and set x87 control word for gcc/x86 */ 394: #ifdef HAVE_GCC_ASM_FOR_X87 395: #define HAVE_PY_SET_53BIT_PRECISION 1 396: /* _Py_get/set_387controlword functions are defined in Python/pymath.c */ 397: #define _Py_SET_53BIT_PRECISION_HEADER \ 398: unsigned short old_387controlword, new_387controlword 399: #define _Py_SET_53BIT_PRECISION_START \ 400: do { \ 401: old_387controlword = _Py_get_387controlword(); \ 402: new_387controlword = (old_387controlword & ~0x0f00) | 0x0200; \ 403: if (new_387controlword != old_387controlword) \ 404: _Py_set_387controlword(new_387controlword); \ 405: } while (0) 406: #define _Py_SET_53BIT_PRECISION_END \ 407: if (new_387controlword != old_387controlword) \ 408: _Py_set_387controlword(old_387controlword) 409: #endif 410: 411: /* get and set x87 control word for VisualStudio/x86 */ 412: #if defined(_MSC_VER) && !defined(_WIN64) /* x87 not supported in 64-bit */ 413: #define HAVE_PY_SET_53BIT_PRECISION 1 414: #define _Py_SET_53BIT_PRECISION_HEADER \ 415: unsigned int old_387controlword, new_387controlword, out_387controlword 416: /* We use the __control87_2 function to set only the x87 control word. 417: The SSE control word is unaffected. */ 418: #define _Py_SET_53BIT_PRECISION_START \ 419: do { \ 420: __control87_2(0, 0, &old_387controlword, NULL); \ 421: new_387controlword = \ 422: (old_387controlword & ~(_MCW_PC | _MCW_RC)) | (_PC_53 | _RC_NEAR); \ 423: if (new_387controlword != old_387controlword) \ 424: __control87_2(new_387controlword, _MCW_PC | _MCW_RC, \ 425: &out_387controlword, NULL); \ 426: } while (0) 427: #define _Py_SET_53BIT_PRECISION_END \ 428: do { \ 429: if (new_387controlword != old_387controlword) \ 430: __control87_2(old_387controlword, _MCW_PC | _MCW_RC, \ 431: &out_387controlword, NULL); \ 432: } while (0) 433: #endif 434: 435: #ifdef HAVE_GCC_ASM_FOR_MC68881 436: #define HAVE_PY_SET_53BIT_PRECISION 1 437: #define _Py_SET_53BIT_PRECISION_HEADER \ 438: unsigned int old_fpcr, new_fpcr 439: #define _Py_SET_53BIT_PRECISION_START \ 440: do { \ 441: __asm__ ("fmove.l %%fpcr,%0" : "=g" (old_fpcr)); \ 442: /* Set double precision / round to nearest. */ \ 443: new_fpcr = (old_fpcr & ~0xf0) | 0x80; \ 444: if (new_fpcr != old_fpcr) \ 445: __asm__ volatile ("fmove.l %0,%%fpcr" : : "g" (new_fpcr)); \ 446: } while (0) 447: #define _Py_SET_53BIT_PRECISION_END \ 448: do { \ 449: if (new_fpcr != old_fpcr) \ 450: __asm__ volatile ("fmove.l %0,%%fpcr" : : "g" (old_fpcr)); \ 451: } while (0) 452: #endif 453: 454: /* default definitions are empty */ 455: #ifndef HAVE_PY_SET_53BIT_PRECISION 456: #define _Py_SET_53BIT_PRECISION_HEADER 457: #define _Py_SET_53BIT_PRECISION_START 458: #define _Py_SET_53BIT_PRECISION_END 459: #endif 460: 461: /* If we can't guarantee 53-bit precision, don't use the code 462: in Python/dtoa.c, but fall back to standard code. This 463: means that repr of a float will be long (17 sig digits). 464: 465: Realistically, there are two things that could go wrong: 466: 467: (1) doubles aren't IEEE 754 doubles, or 468: (2) we're on x86 with the rounding precision set to 64-bits 469: (extended precision), and we don't know how to change 470: the rounding precision. 471: */ 472: 473: #if !defined(DOUBLE_IS_LITTLE_ENDIAN_IEEE754) && \ 474: !defined(DOUBLE_IS_BIG_ENDIAN_IEEE754) && \ 475: !defined(DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754) 476: #define PY_NO_SHORT_FLOAT_REPR 477: #endif 478: 479: /* double rounding is symptomatic of use of extended precision on x86. If 480: we're seeing double rounding, and we don't have any mechanism available for 481: changing the FPU rounding precision, then don't use Python/dtoa.c. */ 482: #if defined(X87_DOUBLE_ROUNDING) && !defined(HAVE_PY_SET_53BIT_PRECISION) 483: #define PY_NO_SHORT_FLOAT_REPR 484: #endif 485: 486: 487: /* Py_DEPRECATED(version) 488: * Declare a variable, type, or function deprecated. 489: * Usage: 490: * extern int old_var Py_DEPRECATED(2.3); 491: * typedef int T1 Py_DEPRECATED(2.4); 492: * extern int x() Py_DEPRECATED(2.5); 493: */ 494: #if defined(__GNUC__) && ((__GNUC__ >= 4) || \ 495: (__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)) 496: #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__)) 497: #else 498: #define Py_DEPRECATED(VERSION_UNUSED) 499: #endif 500: 501: /************************************************************************** 502: Prototypes that are missing from the standard include files on some systems 503: (and possibly only some versions of such systems.) 504: 505: Please be conservative with adding new ones, document them and enclose them 506: in platform-specific #ifdefs. 507: **************************************************************************/ 508: 509: #ifdef SOLARIS 510: /* Unchecked */ 511: extern int gethostname(char *, int); 512: #endif 513: 514: #ifdef HAVE__GETPTY 515: #include <sys/types.h> /* we need to import mode_t */ 516: extern char * _getpty(int *, int, mode_t, int); 517: #endif 518: 519: /* On QNX 6, struct termio must be declared by including sys/termio.h 520: if TCGETA, TCSETA, TCSETAW, or TCSETAF are used. sys/termio.h must 521: be included before termios.h or it will generate an error. */ 522: #if defined(HAVE_SYS_TERMIO_H) && !defined(__hpux) 523: #include <sys/termio.h> 524: #endif 525: 526: #if defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY) 527: #if !defined(HAVE_PTY_H) && !defined(HAVE_LIBUTIL_H) 528: /* BSDI does not supply a prototype for the 'openpty' and 'forkpty' 529: functions, even though they are included in libutil. */ 530: #include <termios.h> 531: extern int openpty(int *, int *, char *, struct termios *, struct winsize *); 532: extern pid_t forkpty(int *, char *, struct termios *, struct winsize *); 533: #endif /* !defined(HAVE_PTY_H) && !defined(HAVE_LIBUTIL_H) */ 534: #endif /* defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY) */ 535: 536: 537: /* On 4.4BSD-descendants, ctype functions serves the whole range of 538: * wchar_t character set rather than single byte code points only. 539: * This characteristic can break some operations of string object 540: * including str.upper() and str.split() on UTF-8 locales. This 541: * workaround was provided by Tim Robbins of FreeBSD project. 542: */ 543: 544: #ifdef __FreeBSD__ 545: #include <osreldate.h> 546: #if (__FreeBSD_version >= 500040 && __FreeBSD_version < 602113) || \ 547: (__FreeBSD_version >= 700000 && __FreeBSD_version < 700054) || \ 548: (__FreeBSD_version >= 800000 && __FreeBSD_version < 800001) 549: # define _PY_PORT_CTYPE_UTF8_ISSUE 550: #endif 551: #endif 552: 553: 554: #if defined(__APPLE__) 555: # define _PY_PORT_CTYPE_UTF8_ISSUE 556: #endif 557: 558: #ifdef _PY_PORT_CTYPE_UTF8_ISSUE 559: #ifndef __cplusplus 560: /* The workaround below is unsafe in C++ because 561: * the <locale> defines these symbols as real functions, 562: * with a slightly different signature. 563: * See issue #10910 564: */ 565: #include <ctype.h> 566: #include <wctype.h> 567: #undef isalnum 568: #define isalnum(c) iswalnum(btowc(c)) 569: #undef isalpha 570: #define isalpha(c) iswalpha(btowc(c)) 571: #undef islower 572: #define islower(c) iswlower(btowc(c)) 573: #undef isspace 574: #define isspace(c) iswspace(btowc(c)) 575: #undef isupper 576: #define isupper(c) iswupper(btowc(c)) 577: #undef tolower 578: #define tolower(c) towlower(btowc(c)) 579: #undef toupper 580: #define toupper(c) towupper(btowc(c)) 581: #endif 582: #endif 583: 584: 585: /* Declarations for symbol visibility. 586: 587: PyAPI_FUNC(type): Declares a public Python API function and return type 588: PyAPI_DATA(type): Declares public Python data and its type 589: PyMODINIT_FUNC: A Python module init function. If these functions are 590: inside the Python core, they are private to the core. 591: If in an extension module, it may be declared with 592: external linkage depending on the platform. 593: 594: As a number of platforms support/require "__declspec(dllimport/dllexport)", 595: we support a HAVE_DECLSPEC_DLL macro to save duplication. 596: */ 597: 598: /* 599: All windows ports, except cygwin, are handled in PC/pyconfig.h. 600: 601: Cygwin is the only other autoconf platform requiring special 602: linkage handling and it uses __declspec(). 603: */ 604: #if defined(__CYGWIN__) 605: # define HAVE_DECLSPEC_DLL 606: #endif 607: 608: /* only get special linkage if built as shared or platform is Cygwin */ 609: #if defined(Py_ENABLE_SHARED) || defined(__CYGWIN__) 610: # if defined(HAVE_DECLSPEC_DLL) 611: # ifdef Py_BUILD_CORE 612: # define PyAPI_FUNC(RTYPE) __declspec(dllexport) RTYPE 613: # define PyAPI_DATA(RTYPE) extern __declspec(dllexport) RTYPE 614: /* module init functions inside the core need no external linkage */ 615: /* except for Cygwin to handle embedding */ 616: # if defined(__CYGWIN__) 617: # define PyMODINIT_FUNC __declspec(dllexport) PyObject* 618: # else /* __CYGWIN__ */ 619: # define PyMODINIT_FUNC PyObject* 620: # endif /* __CYGWIN__ */ 621: # else /* Py_BUILD_CORE */ 622: /* Building an extension module, or an embedded situation */ 623: /* public Python functions and data are imported */ 624: /* Under Cygwin, auto-import functions to prevent compilation */ 625: /* failures similar to those described at the bottom of 4.1: */ 626: /* http://docs.python.org/extending/windows.html#a-cookbook-approach */ 627: # if !defined(__CYGWIN__) 628: # define PyAPI_FUNC(RTYPE) __declspec(dllimport) RTYPE 629: # endif /* !__CYGWIN__ */ 630: # define PyAPI_DATA(RTYPE) extern __declspec(dllimport) RTYPE 631: /* module init functions outside the core must be exported */ 632: # if defined(__cplusplus) 633: # define PyMODINIT_FUNC extern "C" __declspec(dllexport) PyObject* 634: # else /* __cplusplus */ 635: # define PyMODINIT_FUNC __declspec(dllexport) PyObject* 636: # endif /* __cplusplus */ 637: # endif /* Py_BUILD_CORE */ 638: # endif /* HAVE_DECLSPEC */ 639: #endif /* Py_ENABLE_SHARED */ 640: 641: /* If no external linkage macros defined by now, create defaults */ 642: #ifndef PyAPI_FUNC 643: # define PyAPI_FUNC(RTYPE) RTYPE 644: #endif 645: #ifndef PyAPI_DATA 646: # define PyAPI_DATA(RTYPE) extern RTYPE 647: #endif 648: #ifndef PyMODINIT_FUNC 649: # if defined(__cplusplus) 650: # define PyMODINIT_FUNC extern "C" PyObject* 651: # else /* __cplusplus */ 652: # define PyMODINIT_FUNC PyObject* 653: # endif /* __cplusplus */ 654: #endif 655: 656: /* limits.h constants that may be missing */ 657: 658: #ifndef INT_MAX 659: #define INT_MAX 2147483647 660: #endif 661: 662: #ifndef LONG_MAX 663: #if SIZEOF_LONG == 4 664: #define LONG_MAX 0X7FFFFFFFL 665: #elif SIZEOF_LONG == 8 666: #define LONG_MAX 0X7FFFFFFFFFFFFFFFL 667: #else 668: #error "could not set LONG_MAX in pyport.h" 669: #endif 670: #endif 671: 672: #ifndef LONG_MIN 673: #define LONG_MIN (-LONG_MAX-1) 674: #endif 675: 676: #ifndef LONG_BIT 677: #define LONG_BIT (8 * SIZEOF_LONG) 678: #endif 679: 680: #if LONG_BIT != 8 * SIZEOF_LONG 681: /* 04-Oct-2000 LONG_BIT is apparently (mis)defined as 64 on some recent 682: * 32-bit platforms using gcc. We try to catch that here at compile-time 683: * rather than waiting for integer multiplication to trigger bogus 684: * overflows. 685: */ 686: #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)." 687: #endif 688: 689: #ifdef __cplusplus 690: } 691: #endif 692: 693: /* 694: * Hide GCC attributes from compilers that don't support them. 695: */ 696: #if (!defined(__GNUC__) || __GNUC__ < 2 || \ 697: (__GNUC__ == 2 && __GNUC_MINOR__ < 7) ) 698: #define Py_GCC_ATTRIBUTE(x) 699: #else 700: #define Py_GCC_ATTRIBUTE(x) __attribute__(x) 701: #endif 702: 703: /* 704: * Specify alignment on compilers that support it. 705: */ 706: #if defined(__GNUC__) && __GNUC__ >= 3 707: #define Py_ALIGNED(x) __attribute__((aligned(x))) 708: #else 709: #define Py_ALIGNED(x) 710: #endif 711: 712: /* Eliminate end-of-loop code not reached warnings from SunPro C 713: * when using do{...}while(0) macros 714: */ 715: #ifdef __SUNPRO_C 716: #pragma error_messages (off,E_END_OF_LOOP_CODE_NOT_REACHED) 717: #endif 718: 719: #ifndef Py_LL 720: #define Py_LL(x) x##LL 721: #endif 722: 723: #ifndef Py_ULL 724: #define Py_ULL(x) Py_LL(x##U) 725: #endif 726: 727: #define Py_VA_COPY va_copy 728: 729: /* 730: * Convenient macros to deal with endianness of the platform. WORDS_BIGENDIAN is 731: * detected by configure and defined in pyconfig.h. The code in pyconfig.h 732: * also takes care of Apple's universal builds. 733: */ 734: 735: #ifdef WORDS_BIGENDIAN 736: #define PY_BIG_ENDIAN 1 737: #define PY_LITTLE_ENDIAN 0 738: #else 739: #define PY_BIG_ENDIAN 0 740: #define PY_LITTLE_ENDIAN 1 741: #endif 742: 743: #ifdef Py_BUILD_CORE 744: /* 745: * Macros to protect CRT calls against instant termination when passed an 746: * invalid parameter (issue23524). 747: */ 748: #if defined _MSC_VER && _MSC_VER >= 1900 749: 750: extern _invalid_parameter_handler _Py_silent_invalid_parameter_handler; 751: #define _Py_BEGIN_SUPPRESS_IPH { _invalid_parameter_handler _Py_old_handler = \ 752: _set_thread_local_invalid_parameter_handler(_Py_silent_invalid_parameter_handler); 753: #define _Py_END_SUPPRESS_IPH _set_thread_local_invalid_parameter_handler(_Py_old_handler); } 754: 755: #else 756: 757: #define _Py_BEGIN_SUPPRESS_IPH 758: #define _Py_END_SUPPRESS_IPH 759: 760: #endif /* _MSC_VER >= 1900 */ 761: #endif /* Py_BUILD_CORE */ 762: 763: #ifdef __ANDROID__ 764: #include <android/api-level.h> 765: #endif 766: 767: #endif /* Py_PYPORT_H */ 768: