diff options
Diffstat (limited to 'Include/pyport.h')
| -rw-r--r-- | Include/pyport.h | 190 |
1 files changed, 24 insertions, 166 deletions
diff --git a/Include/pyport.h b/Include/pyport.h index e7e51784cb..52a91a0d11 100644 --- a/Include/pyport.h +++ b/Include/pyport.h @@ -3,15 +3,7 @@ #include "pyconfig.h" /* include for defines */ -/* Some versions of HP-UX & Solaris need inttypes.h for int32_t, - INT32_MAX, etc. */ -#ifdef HAVE_INTTYPES_H #include <inttypes.h> -#endif - -#ifdef HAVE_STDINT_H -#include <stdint.h> -#endif /************************************************************************** Symbols and macros to supply platform-independent interfaces to basic @@ -31,14 +23,6 @@ Py_DEBUG Meaning: Extra checks compiled in for debug mode. Used in: Py_SAFE_DOWNCAST -HAVE_UINTPTR_T -Meaning: The C9X type uintptr_t is supported by the compiler -Used in: Py_uintptr_t - -HAVE_LONG_LONG -Meaning: The compiler supports the C type "long long" -Used in: PY_LONG_LONG - **************************************************************************/ /* typedefs for some C9X-defined synonyms for integral types. @@ -53,91 +37,31 @@ Used in: PY_LONG_LONG * integral synonyms. Only define the ones we actually need. */ -#ifdef HAVE_LONG_LONG +// long long is required. Ensure HAVE_LONG_LONG is defined for compatibility. +#ifndef HAVE_LONG_LONG +#define HAVE_LONG_LONG 1 +#endif #ifndef PY_LONG_LONG #define PY_LONG_LONG long long -#if defined(LLONG_MAX) /* If LLONG_MAX is defined in limits.h, use that. */ #define PY_LLONG_MIN LLONG_MIN #define PY_LLONG_MAX LLONG_MAX #define PY_ULLONG_MAX ULLONG_MAX -#elif defined(__LONG_LONG_MAX__) -/* Otherwise, if GCC has a builtin define, use that. (Definition of - * PY_LLONG_MIN assumes two's complement with no trap representation.) */ -#define PY_LLONG_MAX __LONG_LONG_MAX__ -#define PY_LLONG_MIN (-PY_LLONG_MAX - 1) -#define PY_ULLONG_MAX (PY_LLONG_MAX * Py_ULL(2) + 1) -#elif defined(SIZEOF_LONG_LONG) -/* Otherwise compute from SIZEOF_LONG_LONG, assuming two's complement, no - padding bits, and no trap representation. Note: PY_ULLONG_MAX was - previously #defined as (~0ULL) here; but that'll give the wrong value in a - preprocessor expression on systems where long long != intmax_t. */ -#define PY_LLONG_MAX \ - (1 + 2 * ((Py_LL(1) << (CHAR_BIT * SIZEOF_LONG_LONG - 2)) - 1)) -#define PY_LLONG_MIN (-PY_LLONG_MAX - 1) -#define PY_ULLONG_MAX (PY_LLONG_MAX * Py_ULL(2) + 1) -#endif /* LLONG_MAX */ -#endif -#endif /* HAVE_LONG_LONG */ - -/* a build with 30-bit digits for Python integers needs an exact-width - * 32-bit unsigned integer type to store those digits. (We could just use - * type 'unsigned long', but that would be wasteful on a system where longs - * are 64-bits.) On Unix systems, the autoconf macro AC_TYPE_UINT32_T defines - * uint32_t to be such a type unless stdint.h or inttypes.h defines uint32_t. - * However, it doesn't set HAVE_UINT32_T, so we do that here. - */ -#ifdef uint32_t -#define HAVE_UINT32_T 1 #endif -#ifdef HAVE_UINT32_T -#ifndef PY_UINT32_T #define PY_UINT32_T uint32_t -#endif -#endif - -/* Macros for a 64-bit unsigned integer type; used for type 'twodigits' in the - * integer implementation, when 30-bit digits are enabled. - */ -#ifdef uint64_t -#define HAVE_UINT64_T 1 -#endif - -#ifdef HAVE_UINT64_T -#ifndef PY_UINT64_T #define PY_UINT64_T uint64_t -#endif -#endif /* Signed variants of the above */ -#ifdef int32_t -#define HAVE_INT32_T 1 -#endif - -#ifdef HAVE_INT32_T -#ifndef PY_INT32_T #define PY_INT32_T int32_t -#endif -#endif - -#ifdef int64_t -#define HAVE_INT64_T 1 -#endif - -#ifdef HAVE_INT64_T -#ifndef PY_INT64_T #define PY_INT64_T int64_t -#endif -#endif /* If PYLONG_BITS_IN_DIGIT is not defined then we'll use 30-bit digits if all the necessary integer types are available, and we're on a 64-bit platform (as determined by SIZEOF_VOID_P); otherwise we use 15-bit digits. */ #ifndef PYLONG_BITS_IN_DIGIT -#if (defined HAVE_UINT64_T && defined HAVE_INT64_T && \ - defined HAVE_UINT32_T && defined HAVE_INT32_T && SIZEOF_VOID_P >= 8) +#if SIZEOF_VOID_P >= 8 #define PYLONG_BITS_IN_DIGIT 30 #else #define PYLONG_BITS_IN_DIGIT 15 @@ -149,26 +73,9 @@ Used in: PY_LONG_LONG * without loss of information. Similarly for intptr_t, wrt a signed * integral type. */ -#ifdef HAVE_UINTPTR_T typedef uintptr_t Py_uintptr_t; typedef intptr_t Py_intptr_t; -#elif SIZEOF_VOID_P <= SIZEOF_INT -typedef unsigned int Py_uintptr_t; -typedef int Py_intptr_t; - -#elif SIZEOF_VOID_P <= SIZEOF_LONG -typedef unsigned long Py_uintptr_t; -typedef long Py_intptr_t; - -#elif defined(HAVE_LONG_LONG) && (SIZEOF_VOID_P <= SIZEOF_LONG_LONG) -typedef unsigned PY_LONG_LONG Py_uintptr_t; -typedef PY_LONG_LONG Py_intptr_t; - -#else -# error "Python needs a typedef for Py_uintptr_t in pyport.h." -#endif /* HAVE_UINTPTR_T */ - /* Py_ssize_t is a signed integral type such that sizeof(Py_ssize_t) == * sizeof(size_t). C99 doesn't define such a thing directly (size_t is an * unsigned integral type). See PEP 353 for details. @@ -195,16 +102,8 @@ typedef Py_ssize_t Py_ssize_clean_t; typedef int Py_ssize_clean_t; #endif -/* Largest possible value of size_t. - SIZE_MAX is part of C99, so it might be defined on some - platforms. If it is not defined, (size_t)-1 is a portable - definition for C89, due to the way signed->unsigned - conversion is defined. */ -#ifdef SIZE_MAX +/* Largest possible value of size_t. */ #define PY_SIZE_MAX SIZE_MAX -#else -#define PY_SIZE_MAX ((size_t)-1) -#endif /* Largest positive value of type Py_ssize_t. */ #define PY_SSIZE_T_MAX ((Py_ssize_t)(((size_t)-1)>>1)) @@ -247,22 +146,6 @@ typedef int Py_ssize_clean_t; # endif #endif -/* PY_FORMAT_LONG_LONG is analogous to PY_FORMAT_SIZE_T above, but for - * the long long type instead of the size_t type. It's only available - * when HAVE_LONG_LONG is defined. The "high level" Python format - * functions listed above will interpret "lld" or "llu" correctly on - * all platforms. - */ -#ifdef HAVE_LONG_LONG -# ifndef PY_FORMAT_LONG_LONG -# ifdef MS_WINDOWS -# define PY_FORMAT_LONG_LONG "I64" -# else -# error "This platform's pyconfig.h needs to define PY_FORMAT_LONG_LONG" -# endif -# endif -#endif - /* Py_LOCAL can be used instead of static to get the fastest possible calling * convention for functions that are local to a given module. * @@ -298,26 +181,9 @@ typedef int Py_ssize_clean_t; #define Py_LOCAL_INLINE(type) static type #endif -/* Py_MEMCPY can be used instead of memcpy in cases where the copied blocks - * are often very short. While most platforms have highly optimized code for - * large transfers, the setup costs for memcpy are often quite high. MEMCPY - * solves this by doing short copies "in line". - */ - -#if defined(_MSC_VER) -#define Py_MEMCPY(target, source, length) do { \ - size_t i_, n_ = (length); \ - char *t_ = (void*) (target); \ - const char *s_ = (void*) (source); \ - if (n_ >= 16) \ - memcpy(t_, s_, n_); \ - else \ - for (i_ = 0; i_ < n_; i_++) \ - t_[i_] = s_[i_]; \ - } while (0) -#else +/* Py_MEMCPY is kept for backwards compatibility, + * see https://bugs.python.org/issue28126 */ #define Py_MEMCPY memcpy -#endif #include <stdlib.h> @@ -570,18 +436,18 @@ extern "C" { #define HAVE_PY_SET_53BIT_PRECISION 1 #define _Py_SET_53BIT_PRECISION_HEADER \ unsigned int old_fpcr, new_fpcr -#define _Py_SET_53BIT_PRECISION_START \ - do { \ - __asm__ ("fmove.l %%fpcr,%0" : "=g" (old_fpcr)); \ - /* Set double precision / round to nearest. */ \ - new_fpcr = (old_fpcr & ~0xf0) | 0x80; \ - if (new_fpcr != old_fpcr) \ - __asm__ volatile ("fmove.l %0,%%fpcr" : : "g" (new_fpcr)); \ +#define _Py_SET_53BIT_PRECISION_START \ + do { \ + __asm__ ("fmove.l %%fpcr,%0" : "=g" (old_fpcr)); \ + /* Set double precision / round to nearest. */ \ + new_fpcr = (old_fpcr & ~0xf0) | 0x80; \ + if (new_fpcr != old_fpcr) \ + __asm__ volatile ("fmove.l %0,%%fpcr" : : "g" (new_fpcr)); \ } while (0) -#define _Py_SET_53BIT_PRECISION_END \ - do { \ - if (new_fpcr != old_fpcr) \ - __asm__ volatile ("fmove.l %0,%%fpcr" : : "g" (old_fpcr)); \ +#define _Py_SET_53BIT_PRECISION_END \ + do { \ + if (new_fpcr != old_fpcr) \ + __asm__ volatile ("fmove.l %0,%%fpcr" : : "g" (old_fpcr)); \ } while (0) #endif @@ -850,10 +716,6 @@ extern pid_t forkpty(int *, char *, struct termios *, struct winsize *); #pragma error_messages (off,E_END_OF_LOOP_CODE_NOT_REACHED) #endif -/* - * Older Microsoft compilers don't support the C99 long long literal suffixes, - * so these will be defined in PC/pyconfig.h for those compilers. - */ #ifndef Py_LL #define Py_LL(x) x##LL #endif @@ -862,15 +724,7 @@ extern pid_t forkpty(int *, char *, struct termios *, struct winsize *); #define Py_ULL(x) Py_LL(x##U) #endif -#ifdef VA_LIST_IS_ARRAY -#define Py_VA_COPY(x, y) Py_MEMCPY((x), (y), sizeof(va_list)) -#else -#ifdef __va_copy -#define Py_VA_COPY __va_copy -#else -#define Py_VA_COPY(x, y) (x) = (y) -#endif -#endif +#define Py_VA_COPY va_copy /* * Convenient macros to deal with endianness of the platform. WORDS_BIGENDIAN is @@ -906,4 +760,8 @@ extern _invalid_parameter_handler _Py_silent_invalid_parameter_handler; #endif /* _MSC_VER >= 1900 */ #endif /* Py_BUILD_CORE */ +#ifdef __ANDROID__ +#include <android/api-level.h> +#endif + #endif /* Py_PYPORT_H */ |