743 lines
24 KiB
C
743 lines
24 KiB
C
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#ifndef Py_PYPORT_H
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#define Py_PYPORT_H
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#include "pyconfig.h" /* include for defines */
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#include <inttypes.h>
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#include <limits.h>
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#ifndef UCHAR_MAX
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# error "limits.h must define UCHAR_MAX"
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#endif
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#if UCHAR_MAX != 255
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# error "Python's source code assumes C's unsigned char is an 8-bit type"
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#endif
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// Macro to use C++ static_cast<> in the Python C API.
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#ifdef __cplusplus
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# define _Py_STATIC_CAST(type, expr) static_cast<type>(expr)
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#else
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# define _Py_STATIC_CAST(type, expr) ((type)(expr))
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#endif
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// Macro to use the more powerful/dangerous C-style cast even in C++.
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#define _Py_CAST(type, expr) ((type)(expr))
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// Static inline functions should use _Py_NULL rather than using directly NULL
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// to prevent C++ compiler warnings. On C++11 and newer, _Py_NULL is defined as
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// nullptr.
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#if defined(__cplusplus) && __cplusplus >= 201103
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# define _Py_NULL nullptr
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#else
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# define _Py_NULL NULL
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#endif
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/* Defines to build Python and its standard library:
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*
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* - Py_BUILD_CORE: Build Python core. Give access to Python internals, but
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* should not be used by third-party modules.
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* - Py_BUILD_CORE_BUILTIN: Build a Python stdlib module as a built-in module.
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* - Py_BUILD_CORE_MODULE: Build a Python stdlib module as a dynamic library.
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*
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* Py_BUILD_CORE_BUILTIN and Py_BUILD_CORE_MODULE imply Py_BUILD_CORE.
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*
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* On Windows, Py_BUILD_CORE_MODULE exports "PyInit_xxx" symbol, whereas
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* Py_BUILD_CORE_BUILTIN does not.
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*/
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#if defined(Py_BUILD_CORE_BUILTIN) && !defined(Py_BUILD_CORE)
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# define Py_BUILD_CORE
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#endif
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#if defined(Py_BUILD_CORE_MODULE) && !defined(Py_BUILD_CORE)
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# define Py_BUILD_CORE
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#endif
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/**************************************************************************
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Symbols and macros to supply platform-independent interfaces to basic
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C language & library operations whose spellings vary across platforms.
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Please try to make documentation here as clear as possible: by definition,
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the stuff here is trying to illuminate C's darkest corners.
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Config #defines referenced here:
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SIGNED_RIGHT_SHIFT_ZERO_FILLS
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Meaning: To be defined iff i>>j does not extend the sign bit when i is a
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signed integral type and i < 0.
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Used in: Py_ARITHMETIC_RIGHT_SHIFT
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Py_DEBUG
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Meaning: Extra checks compiled in for debug mode.
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Used in: Py_SAFE_DOWNCAST
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**************************************************************************/
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/* typedefs for some C9X-defined synonyms for integral types.
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*
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* The names in Python are exactly the same as the C9X names, except with a
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* Py_ prefix. Until C9X is universally implemented, this is the only way
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* to ensure that Python gets reliable names that don't conflict with names
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* in non-Python code that are playing their own tricks to define the C9X
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* names.
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*
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* NOTE: don't go nuts here! Python has no use for *most* of the C9X
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* integral synonyms. Only define the ones we actually need.
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*/
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/* long long is required. Ensure HAVE_LONG_LONG is defined for compatibility. */
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#ifndef HAVE_LONG_LONG
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#define HAVE_LONG_LONG 1
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#endif
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#ifndef PY_LONG_LONG
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#define PY_LONG_LONG long long
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/* If LLONG_MAX is defined in limits.h, use that. */
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#define PY_LLONG_MIN LLONG_MIN
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#define PY_LLONG_MAX LLONG_MAX
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#define PY_ULLONG_MAX ULLONG_MAX
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#endif
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#define PY_UINT32_T uint32_t
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#define PY_UINT64_T uint64_t
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/* Signed variants of the above */
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#define PY_INT32_T int32_t
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#define PY_INT64_T int64_t
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/* PYLONG_BITS_IN_DIGIT describes the number of bits per "digit" (limb) in the
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* PyLongObject implementation (longintrepr.h). It's currently either 30 or 15,
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* defaulting to 30. The 15-bit digit option may be removed in the future.
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*/
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#ifndef PYLONG_BITS_IN_DIGIT
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#define PYLONG_BITS_IN_DIGIT 30
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#endif
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/* uintptr_t is the C9X name for an unsigned integral type such that a
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* legitimate void* can be cast to uintptr_t and then back to void* again
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* without loss of information. Similarly for intptr_t, wrt a signed
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* integral type.
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*/
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typedef uintptr_t Py_uintptr_t;
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typedef intptr_t Py_intptr_t;
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/* Py_ssize_t is a signed integral type such that sizeof(Py_ssize_t) ==
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* sizeof(size_t). C99 doesn't define such a thing directly (size_t is an
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* unsigned integral type). See PEP 353 for details.
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* PY_SSIZE_T_MAX is the largest positive value of type Py_ssize_t.
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*/
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#ifdef HAVE_PY_SSIZE_T
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#elif HAVE_SSIZE_T
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typedef ssize_t Py_ssize_t;
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# define PY_SSIZE_T_MAX SSIZE_MAX
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#elif SIZEOF_VOID_P == SIZEOF_SIZE_T
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typedef Py_intptr_t Py_ssize_t;
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# define PY_SSIZE_T_MAX INTPTR_MAX
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#else
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# error "Python needs a typedef for Py_ssize_t in pyport.h."
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#endif
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/* Smallest negative value of type Py_ssize_t. */
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#define PY_SSIZE_T_MIN (-PY_SSIZE_T_MAX-1)
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/* Py_hash_t is the same size as a pointer. */
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#define SIZEOF_PY_HASH_T SIZEOF_SIZE_T
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typedef Py_ssize_t Py_hash_t;
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/* Py_uhash_t is the unsigned equivalent needed to calculate numeric hash. */
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#define SIZEOF_PY_UHASH_T SIZEOF_SIZE_T
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typedef size_t Py_uhash_t;
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/* Now PY_SSIZE_T_CLEAN is mandatory. This is just for backward compatibility. */
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typedef Py_ssize_t Py_ssize_clean_t;
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/* Largest possible value of size_t. */
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#define PY_SIZE_MAX SIZE_MAX
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/* Macro kept for backward compatibility: use "z" in new code.
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*
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* PY_FORMAT_SIZE_T is a platform-specific modifier for use in a printf
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* format to convert an argument with the width of a size_t or Py_ssize_t.
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* C99 introduced "z" for this purpose, but old MSVCs had not supported it.
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* Since MSVC supports "z" since (at least) 2015, we can just use "z"
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* for new code.
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*
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* These "high level" Python format functions interpret "z" correctly on
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* all platforms (Python interprets the format string itself, and does whatever
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* the platform C requires to convert a size_t/Py_ssize_t argument):
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*
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* PyBytes_FromFormat
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* PyErr_Format
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* PyBytes_FromFormatV
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* PyUnicode_FromFormatV
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*
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* Lower-level uses require that you interpolate the correct format modifier
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* yourself (e.g., calling printf, fprintf, sprintf, PyOS_snprintf); for
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* example,
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*
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* Py_ssize_t index;
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* fprintf(stderr, "index %" PY_FORMAT_SIZE_T "d sucks\n", index);
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*
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* That will expand to %zd or to something else correct for a Py_ssize_t on
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* the platform.
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*/
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#ifndef PY_FORMAT_SIZE_T
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# define PY_FORMAT_SIZE_T "z"
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#endif
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/* Py_LOCAL can be used instead of static to get the fastest possible calling
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* convention for functions that are local to a given module.
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*
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* Py_LOCAL_INLINE does the same thing, and also explicitly requests inlining,
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* for platforms that support that.
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*
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* NOTE: You can only use this for functions that are entirely local to a
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* module; functions that are exported via method tables, callbacks, etc,
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* should keep using static.
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*/
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#if defined(_MSC_VER)
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/* ignore warnings if the compiler decides not to inline a function */
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# pragma warning(disable: 4710)
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/* fastest possible local call under MSVC */
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# define Py_LOCAL(type) static type __fastcall
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# define Py_LOCAL_INLINE(type) static __inline type __fastcall
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#else
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# define Py_LOCAL(type) static type
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# define Py_LOCAL_INLINE(type) static inline type
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#endif
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// bpo-28126: Py_MEMCPY is kept for backwards compatibility,
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#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
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# define Py_MEMCPY memcpy
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#endif
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#ifdef HAVE_IEEEFP_H
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#include <ieeefp.h> /* needed for 'finite' declaration on some platforms */
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#endif
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#include <math.h> /* Moved here from the math section, before extern "C" */
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/********************************************
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* WRAPPER FOR <time.h> and/or <sys/time.h> *
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********************************************/
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#include <time.h>
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/******************************
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* WRAPPER FOR <sys/select.h> *
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******************************/
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/* NB caller must include <sys/types.h> */
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif /* !HAVE_SYS_SELECT_H */
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/*******************************
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* stat() and fstat() fiddling *
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*******************************/
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#elif defined(HAVE_STAT_H)
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#include <stat.h>
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#endif
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#ifndef S_IFMT
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/* VisualAge C/C++ Failed to Define MountType Field in sys/stat.h */
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#define S_IFMT 0170000
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#endif
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#ifndef S_IFLNK
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/* Windows doesn't define S_IFLNK but posixmodule.c maps
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* IO_REPARSE_TAG_SYMLINK to S_IFLNK */
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# define S_IFLNK 0120000
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#endif
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#ifndef S_ISREG
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#define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
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#endif
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#ifndef S_ISDIR
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#define S_ISDIR(x) (((x) & S_IFMT) == S_IFDIR)
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#endif
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#ifndef S_ISCHR
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#define S_ISCHR(x) (((x) & S_IFMT) == S_IFCHR)
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#endif
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#ifdef __cplusplus
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/* Move this down here since some C++ #include's don't like to be included
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inside an extern "C" */
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extern "C" {
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#endif
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/* Py_ARITHMETIC_RIGHT_SHIFT
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* C doesn't define whether a right-shift of a signed integer sign-extends
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* or zero-fills. Here a macro to force sign extension:
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* Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J)
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* Return I >> J, forcing sign extension. Arithmetically, return the
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* floor of I/2**J.
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* Requirements:
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* I should have signed integer type. In the terminology of C99, this can
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* be either one of the five standard signed integer types (signed char,
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* short, int, long, long long) or an extended signed integer type.
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* J is an integer >= 0 and strictly less than the number of bits in the
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* type of I (because C doesn't define what happens for J outside that
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* range either).
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* TYPE used to specify the type of I, but is now ignored. It's been left
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* in for backwards compatibility with versions <= 2.6 or 3.0.
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* Caution:
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* I may be evaluated more than once.
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*/
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#ifdef SIGNED_RIGHT_SHIFT_ZERO_FILLS
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#define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) \
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((I) < 0 ? -1-((-1-(I)) >> (J)) : (I) >> (J))
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#else
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#define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) ((I) >> (J))
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#endif
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/* Py_FORCE_EXPANSION(X)
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* "Simply" returns its argument. However, macro expansions within the
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* argument are evaluated. This unfortunate trickery is needed to get
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* token-pasting to work as desired in some cases.
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*/
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#define Py_FORCE_EXPANSION(X) X
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/* Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW)
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* Cast VALUE to type NARROW from type WIDE. In Py_DEBUG mode, this
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* assert-fails if any information is lost.
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* Caution:
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* VALUE may be evaluated more than once.
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*/
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#ifdef Py_DEBUG
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# define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) \
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(assert(_Py_STATIC_CAST(WIDE, _Py_STATIC_CAST(NARROW, (VALUE))) == (VALUE)), \
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_Py_STATIC_CAST(NARROW, (VALUE)))
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#else
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# define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) _Py_STATIC_CAST(NARROW, (VALUE))
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#endif
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/* Py_DEPRECATED(version)
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* Declare a variable, type, or function deprecated.
|
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* The macro must be placed before the declaration.
|
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* Usage:
|
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* Py_DEPRECATED(3.3) extern int old_var;
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* Py_DEPRECATED(3.4) typedef int T1;
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* Py_DEPRECATED(3.8) PyAPI_FUNC(int) Py_OldFunction(void);
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*/
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#if defined(__GNUC__) \
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&& ((__GNUC__ >= 4) || (__GNUC__ == 3) && (__GNUC_MINOR__ >= 1))
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#define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
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#elif defined(_MSC_VER)
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#define Py_DEPRECATED(VERSION) __declspec(deprecated( \
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"deprecated in " #VERSION))
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#else
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#define Py_DEPRECATED(VERSION_UNUSED)
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#endif
|
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#if defined(__clang__)
|
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#define _Py_COMP_DIAG_PUSH _Pragma("clang diagnostic push")
|
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#define _Py_COMP_DIAG_IGNORE_DEPR_DECLS \
|
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|
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_Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")
|
||
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#define _Py_COMP_DIAG_POP _Pragma("clang diagnostic pop")
|
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#elif defined(__GNUC__) \
|
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|
|
&& ((__GNUC__ >= 5) || (__GNUC__ == 4) && (__GNUC_MINOR__ >= 6))
|
||
|
|
#define _Py_COMP_DIAG_PUSH _Pragma("GCC diagnostic push")
|
||
|
|
#define _Py_COMP_DIAG_IGNORE_DEPR_DECLS \
|
||
|
|
_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
|
||
|
|
#define _Py_COMP_DIAG_POP _Pragma("GCC diagnostic pop")
|
||
|
|
#elif defined(_MSC_VER)
|
||
|
|
#define _Py_COMP_DIAG_PUSH __pragma(warning(push))
|
||
|
|
#define _Py_COMP_DIAG_IGNORE_DEPR_DECLS __pragma(warning(disable: 4996))
|
||
|
|
#define _Py_COMP_DIAG_POP __pragma(warning(pop))
|
||
|
|
#else
|
||
|
|
#define _Py_COMP_DIAG_PUSH
|
||
|
|
#define _Py_COMP_DIAG_IGNORE_DEPR_DECLS
|
||
|
|
#define _Py_COMP_DIAG_POP
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* _Py_HOT_FUNCTION
|
||
|
|
* The hot attribute on a function is used to inform the compiler that the
|
||
|
|
* function is a hot spot of the compiled program. The function is optimized
|
||
|
|
* more aggressively and on many target it is placed into special subsection of
|
||
|
|
* the text section so all hot functions appears close together improving
|
||
|
|
* locality.
|
||
|
|
*
|
||
|
|
* Usage:
|
||
|
|
* int _Py_HOT_FUNCTION x(void) { return 3; }
|
||
|
|
*
|
||
|
|
* Issue #28618: This attribute must not be abused, otherwise it can have a
|
||
|
|
* negative effect on performance. Only the functions were Python spend most of
|
||
|
|
* its time must use it. Use a profiler when running performance benchmark
|
||
|
|
* suite to find these functions.
|
||
|
|
*/
|
||
|
|
#if defined(__GNUC__) \
|
||
|
|
&& ((__GNUC__ >= 5) || (__GNUC__ == 4) && (__GNUC_MINOR__ >= 3))
|
||
|
|
#define _Py_HOT_FUNCTION __attribute__((hot))
|
||
|
|
#else
|
||
|
|
#define _Py_HOT_FUNCTION
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// Ask the compiler to always inline a static inline function. The compiler can
|
||
|
|
// ignore it and decides to not inline the function.
|
||
|
|
//
|
||
|
|
// It can be used to inline performance critical static inline functions when
|
||
|
|
// building Python in debug mode with function inlining disabled. For example,
|
||
|
|
// MSC disables function inlining when building in debug mode.
|
||
|
|
//
|
||
|
|
// Marking blindly a static inline function with Py_ALWAYS_INLINE can result in
|
||
|
|
// worse performances (due to increased code size for example). The compiler is
|
||
|
|
// usually smarter than the developer for the cost/benefit analysis.
|
||
|
|
//
|
||
|
|
// If Python is built in debug mode (if the Py_DEBUG macro is defined), the
|
||
|
|
// Py_ALWAYS_INLINE macro does nothing.
|
||
|
|
//
|
||
|
|
// It must be specified before the function return type. Usage:
|
||
|
|
//
|
||
|
|
// static inline Py_ALWAYS_INLINE int random(void) { return 4; }
|
||
|
|
#if defined(Py_DEBUG)
|
||
|
|
// If Python is built in debug mode, usually compiler optimizations are
|
||
|
|
// disabled. In this case, Py_ALWAYS_INLINE can increase a lot the stack
|
||
|
|
// memory usage. For example, forcing inlining using gcc -O0 increases the
|
||
|
|
// stack usage from 6 KB to 15 KB per Python function call.
|
||
|
|
# define Py_ALWAYS_INLINE
|
||
|
|
#elif defined(__GNUC__) || defined(__clang__) || defined(__INTEL_COMPILER)
|
||
|
|
# define Py_ALWAYS_INLINE __attribute__((always_inline))
|
||
|
|
#elif defined(_MSC_VER)
|
||
|
|
# define Py_ALWAYS_INLINE __forceinline
|
||
|
|
#else
|
||
|
|
# define Py_ALWAYS_INLINE
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// Py_NO_INLINE
|
||
|
|
// Disable inlining on a function. For example, it reduces the C stack
|
||
|
|
// consumption: useful on LTO+PGO builds which heavily inline code (see
|
||
|
|
// bpo-33720).
|
||
|
|
//
|
||
|
|
// Usage:
|
||
|
|
//
|
||
|
|
// Py_NO_INLINE static int random(void) { return 4; }
|
||
|
|
#if defined(__GNUC__) || defined(__clang__) || defined(__INTEL_COMPILER)
|
||
|
|
# define Py_NO_INLINE __attribute__ ((noinline))
|
||
|
|
#elif defined(_MSC_VER)
|
||
|
|
# define Py_NO_INLINE __declspec(noinline)
|
||
|
|
#else
|
||
|
|
# define Py_NO_INLINE
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**************************************************************************
|
||
|
|
Prototypes that are missing from the standard include files on some systems
|
||
|
|
(and possibly only some versions of such systems.)
|
||
|
|
|
||
|
|
Please be conservative with adding new ones, document them and enclose them
|
||
|
|
in platform-specific #ifdefs.
|
||
|
|
**************************************************************************/
|
||
|
|
|
||
|
|
#ifdef SOLARIS
|
||
|
|
/* Unchecked */
|
||
|
|
extern int gethostname(char *, int);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HAVE__GETPTY
|
||
|
|
#include <sys/types.h> /* we need to import mode_t */
|
||
|
|
extern char * _getpty(int *, int, mode_t, int);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* On QNX 6, struct termio must be declared by including sys/termio.h
|
||
|
|
if TCGETA, TCSETA, TCSETAW, or TCSETAF are used. sys/termio.h must
|
||
|
|
be included before termios.h or it will generate an error. */
|
||
|
|
#if defined(HAVE_SYS_TERMIO_H) && !defined(__hpux)
|
||
|
|
#include <sys/termio.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* On 4.4BSD-descendants, ctype functions serves the whole range of
|
||
|
|
* wchar_t character set rather than single byte code points only.
|
||
|
|
* This characteristic can break some operations of string object
|
||
|
|
* including str.upper() and str.split() on UTF-8 locales. This
|
||
|
|
* workaround was provided by Tim Robbins of FreeBSD project.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if defined(__APPLE__)
|
||
|
|
# define _PY_PORT_CTYPE_UTF8_ISSUE
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef _PY_PORT_CTYPE_UTF8_ISSUE
|
||
|
|
#ifndef __cplusplus
|
||
|
|
/* The workaround below is unsafe in C++ because
|
||
|
|
* the <locale> defines these symbols as real functions,
|
||
|
|
* with a slightly different signature.
|
||
|
|
* See issue #10910
|
||
|
|
*/
|
||
|
|
#include <ctype.h>
|
||
|
|
#include <wctype.h>
|
||
|
|
#undef isalnum
|
||
|
|
#define isalnum(c) iswalnum(btowc(c))
|
||
|
|
#undef isalpha
|
||
|
|
#define isalpha(c) iswalpha(btowc(c))
|
||
|
|
#undef islower
|
||
|
|
#define islower(c) iswlower(btowc(c))
|
||
|
|
#undef isspace
|
||
|
|
#define isspace(c) iswspace(btowc(c))
|
||
|
|
#undef isupper
|
||
|
|
#define isupper(c) iswupper(btowc(c))
|
||
|
|
#undef tolower
|
||
|
|
#define tolower(c) towlower(btowc(c))
|
||
|
|
#undef toupper
|
||
|
|
#define toupper(c) towupper(btowc(c))
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* Declarations for symbol visibility.
|
||
|
|
|
||
|
|
PyAPI_FUNC(type): Declares a public Python API function and return type
|
||
|
|
PyAPI_DATA(type): Declares public Python data and its type
|
||
|
|
PyMODINIT_FUNC: A Python module init function. If these functions are
|
||
|
|
inside the Python core, they are private to the core.
|
||
|
|
If in an extension module, it may be declared with
|
||
|
|
external linkage depending on the platform.
|
||
|
|
|
||
|
|
As a number of platforms support/require "__declspec(dllimport/dllexport)",
|
||
|
|
we support a HAVE_DECLSPEC_DLL macro to save duplication.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
All windows ports, except cygwin, are handled in PC/pyconfig.h.
|
||
|
|
|
||
|
|
Cygwin is the only other autoconf platform requiring special
|
||
|
|
linkage handling and it uses __declspec().
|
||
|
|
*/
|
||
|
|
#if defined(__CYGWIN__)
|
||
|
|
# define HAVE_DECLSPEC_DLL
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "exports.h"
|
||
|
|
|
||
|
|
/* only get special linkage if built as shared or platform is Cygwin */
|
||
|
|
#if defined(Py_ENABLE_SHARED) || defined(__CYGWIN__)
|
||
|
|
# if defined(HAVE_DECLSPEC_DLL)
|
||
|
|
# if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
|
||
|
|
# define PyAPI_FUNC(RTYPE) Py_EXPORTED_SYMBOL RTYPE
|
||
|
|
# define PyAPI_DATA(RTYPE) extern Py_EXPORTED_SYMBOL RTYPE
|
||
|
|
/* module init functions inside the core need no external linkage */
|
||
|
|
/* except for Cygwin to handle embedding */
|
||
|
|
# if defined(__CYGWIN__)
|
||
|
|
# define PyMODINIT_FUNC Py_EXPORTED_SYMBOL PyObject*
|
||
|
|
# else /* __CYGWIN__ */
|
||
|
|
# define PyMODINIT_FUNC PyObject*
|
||
|
|
# endif /* __CYGWIN__ */
|
||
|
|
# else /* Py_BUILD_CORE */
|
||
|
|
/* Building an extension module, or an embedded situation */
|
||
|
|
/* public Python functions and data are imported */
|
||
|
|
/* Under Cygwin, auto-import functions to prevent compilation */
|
||
|
|
/* failures similar to those described at the bottom of 4.1: */
|
||
|
|
/* http://docs.python.org/extending/windows.html#a-cookbook-approach */
|
||
|
|
# if !defined(__CYGWIN__)
|
||
|
|
# define PyAPI_FUNC(RTYPE) Py_IMPORTED_SYMBOL RTYPE
|
||
|
|
# endif /* !__CYGWIN__ */
|
||
|
|
# define PyAPI_DATA(RTYPE) extern Py_IMPORTED_SYMBOL RTYPE
|
||
|
|
/* module init functions outside the core must be exported */
|
||
|
|
# if defined(__cplusplus)
|
||
|
|
# define PyMODINIT_FUNC extern "C" Py_EXPORTED_SYMBOL PyObject*
|
||
|
|
# else /* __cplusplus */
|
||
|
|
# define PyMODINIT_FUNC Py_EXPORTED_SYMBOL PyObject*
|
||
|
|
# endif /* __cplusplus */
|
||
|
|
# endif /* Py_BUILD_CORE */
|
||
|
|
# endif /* HAVE_DECLSPEC_DLL */
|
||
|
|
#endif /* Py_ENABLE_SHARED */
|
||
|
|
|
||
|
|
/* If no external linkage macros defined by now, create defaults */
|
||
|
|
#ifndef PyAPI_FUNC
|
||
|
|
# define PyAPI_FUNC(RTYPE) Py_EXPORTED_SYMBOL RTYPE
|
||
|
|
#endif
|
||
|
|
#ifndef PyAPI_DATA
|
||
|
|
# define PyAPI_DATA(RTYPE) extern Py_EXPORTED_SYMBOL RTYPE
|
||
|
|
#endif
|
||
|
|
#ifndef PyMODINIT_FUNC
|
||
|
|
# if defined(__cplusplus)
|
||
|
|
# define PyMODINIT_FUNC extern "C" Py_EXPORTED_SYMBOL PyObject*
|
||
|
|
# else /* __cplusplus */
|
||
|
|
# define PyMODINIT_FUNC Py_EXPORTED_SYMBOL PyObject*
|
||
|
|
# endif /* __cplusplus */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* limits.h constants that may be missing */
|
||
|
|
|
||
|
|
#ifndef INT_MAX
|
||
|
|
#define INT_MAX 2147483647
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef LONG_MAX
|
||
|
|
#if SIZEOF_LONG == 4
|
||
|
|
#define LONG_MAX 0X7FFFFFFFL
|
||
|
|
#elif SIZEOF_LONG == 8
|
||
|
|
#define LONG_MAX 0X7FFFFFFFFFFFFFFFL
|
||
|
|
#else
|
||
|
|
#error "could not set LONG_MAX in pyport.h"
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef LONG_MIN
|
||
|
|
#define LONG_MIN (-LONG_MAX-1)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef LONG_BIT
|
||
|
|
#define LONG_BIT (8 * SIZEOF_LONG)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if LONG_BIT != 8 * SIZEOF_LONG
|
||
|
|
/* 04-Oct-2000 LONG_BIT is apparently (mis)defined as 64 on some recent
|
||
|
|
* 32-bit platforms using gcc. We try to catch that here at compile-time
|
||
|
|
* rather than waiting for integer multiplication to trigger bogus
|
||
|
|
* overflows.
|
||
|
|
*/
|
||
|
|
#error "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)."
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Hide GCC attributes from compilers that don't support them.
|
||
|
|
*/
|
||
|
|
#if (!defined(__GNUC__) || __GNUC__ < 2 || \
|
||
|
|
(__GNUC__ == 2 && __GNUC_MINOR__ < 7) )
|
||
|
|
#define Py_GCC_ATTRIBUTE(x)
|
||
|
|
#else
|
||
|
|
#define Py_GCC_ATTRIBUTE(x) __attribute__(x)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Specify alignment on compilers that support it.
|
||
|
|
*/
|
||
|
|
#if defined(__GNUC__) && __GNUC__ >= 3
|
||
|
|
#define Py_ALIGNED(x) __attribute__((aligned(x)))
|
||
|
|
#else
|
||
|
|
#define Py_ALIGNED(x)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Eliminate end-of-loop code not reached warnings from SunPro C
|
||
|
|
* when using do{...}while(0) macros
|
||
|
|
*/
|
||
|
|
#ifdef __SUNPRO_C
|
||
|
|
#pragma error_messages (off,E_END_OF_LOOP_CODE_NOT_REACHED)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef Py_LL
|
||
|
|
#define Py_LL(x) x##LL
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef Py_ULL
|
||
|
|
#define Py_ULL(x) Py_LL(x##U)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define Py_VA_COPY va_copy
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Convenient macros to deal with endianness of the platform. WORDS_BIGENDIAN is
|
||
|
|
* detected by configure and defined in pyconfig.h. The code in pyconfig.h
|
||
|
|
* also takes care of Apple's universal builds.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef WORDS_BIGENDIAN
|
||
|
|
# define PY_BIG_ENDIAN 1
|
||
|
|
# define PY_LITTLE_ENDIAN 0
|
||
|
|
#else
|
||
|
|
# define PY_BIG_ENDIAN 0
|
||
|
|
# define PY_LITTLE_ENDIAN 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __ANDROID__
|
||
|
|
/* The Android langinfo.h header is not used. */
|
||
|
|
# undef HAVE_LANGINFO_H
|
||
|
|
# undef CODESET
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Maximum value of the Windows DWORD type */
|
||
|
|
#define PY_DWORD_MAX 4294967295U
|
||
|
|
|
||
|
|
/* This macro used to tell whether Python was built with multithreading
|
||
|
|
* enabled. Now multithreading is always enabled, but keep the macro
|
||
|
|
* for compatibility.
|
||
|
|
*/
|
||
|
|
#ifndef WITH_THREAD
|
||
|
|
# define WITH_THREAD
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Check that ALT_SOABI is consistent with Py_TRACE_REFS:
|
||
|
|
./configure --with-trace-refs should must be used to define Py_TRACE_REFS */
|
||
|
|
#if defined(ALT_SOABI) && defined(Py_TRACE_REFS)
|
||
|
|
# error "Py_TRACE_REFS ABI is not compatible with release and debug ABI"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(__ANDROID__) || defined(__VXWORKS__)
|
||
|
|
// Use UTF-8 as the locale encoding, ignore the LC_CTYPE locale.
|
||
|
|
// See _Py_GetLocaleEncoding(), PyUnicode_DecodeLocale()
|
||
|
|
// and PyUnicode_EncodeLocale().
|
||
|
|
# define _Py_FORCE_UTF8_LOCALE
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(_Py_FORCE_UTF8_LOCALE) || defined(__APPLE__)
|
||
|
|
// Use UTF-8 as the filesystem encoding.
|
||
|
|
// See PyUnicode_DecodeFSDefaultAndSize(), PyUnicode_EncodeFSDefault(),
|
||
|
|
// Py_DecodeLocale() and Py_EncodeLocale().
|
||
|
|
# define _Py_FORCE_UTF8_FS_ENCODING
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Mark a function which cannot return. Example:
|
||
|
|
PyAPI_FUNC(void) _Py_NO_RETURN PyThread_exit_thread(void);
|
||
|
|
|
||
|
|
XLC support is intentionally omitted due to bpo-40244 */
|
||
|
|
#ifndef _Py_NO_RETURN
|
||
|
|
#if defined(__clang__) || \
|
||
|
|
(defined(__GNUC__) && \
|
||
|
|
((__GNUC__ >= 3) || \
|
||
|
|
(__GNUC__ == 2) && (__GNUC_MINOR__ >= 5)))
|
||
|
|
# define _Py_NO_RETURN __attribute__((__noreturn__))
|
||
|
|
#elif defined(_MSC_VER)
|
||
|
|
# define _Py_NO_RETURN __declspec(noreturn)
|
||
|
|
#else
|
||
|
|
# define _Py_NO_RETURN
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
// Preprocessor check for a builtin preprocessor function. Always return 0
|
||
|
|
// if __has_builtin() macro is not defined.
|
||
|
|
//
|
||
|
|
// __has_builtin() is available on clang and GCC 10.
|
||
|
|
#ifdef __has_builtin
|
||
|
|
# define _Py__has_builtin(x) __has_builtin(x)
|
||
|
|
#else
|
||
|
|
# define _Py__has_builtin(x) 0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* A convenient way for code to know if sanitizers are enabled. */
|
||
|
|
#if defined(__has_feature)
|
||
|
|
# if __has_feature(memory_sanitizer)
|
||
|
|
# if !defined(_Py_MEMORY_SANITIZER)
|
||
|
|
# define _Py_MEMORY_SANITIZER
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
# if __has_feature(address_sanitizer)
|
||
|
|
# if !defined(_Py_ADDRESS_SANITIZER)
|
||
|
|
# define _Py_ADDRESS_SANITIZER
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
#elif defined(__GNUC__)
|
||
|
|
# if defined(__SANITIZE_ADDRESS__)
|
||
|
|
# define _Py_ADDRESS_SANITIZER
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* Py_PYPORT_H */
|