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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2018 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
| Dmitry Stogov <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifndef ZEND_PORTABILITY_H
#define ZEND_PORTABILITY_H
#ifdef __cplusplus
#define BEGIN_EXTERN_C() extern "C" {
#define END_EXTERN_C() }
#else
#define BEGIN_EXTERN_C()
#define END_EXTERN_C()
#endif
/*
* general definitions
*/
#ifdef ZEND_WIN32
# include "zend_config.w32.h"
# define ZEND_PATHS_SEPARATOR ';'
#elif defined(__riscos__)
# include <zend_config.h>
# define ZEND_PATHS_SEPARATOR ';'
#else
# include <zend_config.h>
# define ZEND_PATHS_SEPARATOR ':'
#endif
#include "../TSRM/TSRM.h"
#include <stdio.h>
#include <assert.h>
#include <math.h>
#ifdef HAVE_UNIX_H
# include <unix.h>
#endif
#ifdef HAVE_STDARG_H
# include <stdarg.h>
#endif
#ifdef HAVE_DLFCN_H
# include <dlfcn.h>
#endif
#ifdef HAVE_LIMITS_H
# include <limits.h>
#endif
#if HAVE_ALLOCA_H && !defined(_ALLOCA_H)
# include <alloca.h>
#endif
#if defined(ZEND_WIN32)
#include <intrin.h>
#endif
#include "zend_range_check.h"
/* GCC x.y.z supplies __GNUC__ = x and __GNUC_MINOR__ = y */
#ifdef __GNUC__
# define ZEND_GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
#else
# define ZEND_GCC_VERSION 0
#endif
/* Compatibility with non-clang compilers */
#ifndef __has_attribute
# define __has_attribute(x) 0
#endif
#ifndef __has_builtin
# define __has_builtin(x) 0
#endif
#if defined(ZEND_WIN32) && !defined(__clang__)
# define ZEND_ASSUME(c) __assume(c)
#elif ((defined(__GNUC__) && ZEND_GCC_VERSION >= 4005) || __has_builtin(__builtin_unreachable)) && PHP_HAVE_BUILTIN_EXPECT
# define ZEND_ASSUME(c) do { \
if (__builtin_expect(!(c), 0)) __builtin_unreachable(); \
} while (0)
#else
# define ZEND_ASSUME(c)
#endif
#if ZEND_DEBUG
# define ZEND_ASSERT(c) assert(c)
#else
# define ZEND_ASSERT(c) ZEND_ASSUME(c)
#endif
/* Only use this macro if you know for sure that all of the switches values
are covered by its case statements */
#if ZEND_DEBUG
# define EMPTY_SWITCH_DEFAULT_CASE() default: ZEND_ASSERT(0); break;
#else
# define EMPTY_SWITCH_DEFAULT_CASE() default: ZEND_ASSUME(0); break;
#endif
#if defined(__GNUC__) && __GNUC__ >= 4
# define ZEND_IGNORE_VALUE(x) (({ __typeof__ (x) __x = (x); (void) __x; }))
#else
# define ZEND_IGNORE_VALUE(x) ((void) (x))
#endif
#define zend_quiet_write(...) ZEND_IGNORE_VALUE(write(__VA_ARGS__))
/* all HAVE_XXX test have to be after the include of zend_config above */
#if defined(HAVE_LIBDL) && !defined(ZEND_WIN32)
# if defined(__has_feature)
# if __has_feature(address_sanitizer)
# define __SANITIZE_ADDRESS__
# endif
# endif
# ifndef RTLD_LAZY
# define RTLD_LAZY 1 /* Solaris 1, FreeBSD's (2.1.7.1 and older) */
# endif
# ifndef RTLD_GLOBAL
# define RTLD_GLOBAL 0
# endif
# if defined(RTLD_GROUP) && defined(RTLD_WORLD) && defined(RTLD_PARENT)
# define DL_LOAD(libname) dlopen(libname, RTLD_LAZY | RTLD_GLOBAL | RTLD_GROUP | RTLD_WORLD | RTLD_PARENT)
# elif defined(RTLD_DEEPBIND) && !defined(__SANITIZE_ADDRESS__)
# define DL_LOAD(libname) dlopen(libname, RTLD_LAZY | RTLD_GLOBAL | RTLD_DEEPBIND)
# else
# define DL_LOAD(libname) dlopen(libname, RTLD_LAZY | RTLD_GLOBAL)
# endif
# define DL_UNLOAD dlclose
# if defined(DLSYM_NEEDS_UNDERSCORE)
# define DL_FETCH_SYMBOL(h,s) dlsym((h), "_" s)
# else
# define DL_FETCH_SYMBOL dlsym
# endif
# define DL_ERROR dlerror
# define DL_HANDLE void *
# define ZEND_EXTENSIONS_SUPPORT 1
#elif defined(ZEND_WIN32)
# define DL_LOAD(libname) LoadLibrary(libname)
# define DL_FETCH_SYMBOL GetProcAddress
# define DL_UNLOAD FreeLibrary
# define DL_HANDLE HMODULE
# define ZEND_EXTENSIONS_SUPPORT 1
#else
# define DL_HANDLE void *
# define ZEND_EXTENSIONS_SUPPORT 0
#endif
/* AIX requires this to be the first thing in the file. */
#ifndef __GNUC__
# ifndef HAVE_ALLOCA_H
# ifdef _AIX
# pragma alloca
# else
# ifndef alloca /* predefined by HP cc +Olibcalls */
char *alloca();
# endif
# endif
# endif
#endif
#if ZEND_GCC_VERSION >= 2096 || __has_attribute(__malloc__)
# define ZEND_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
#else
# define ZEND_ATTRIBUTE_MALLOC
#endif
#if ZEND_GCC_VERSION >= 4003 || __has_attribute(alloc_size)
# define ZEND_ATTRIBUTE_ALLOC_SIZE(X) __attribute__ ((alloc_size(X)))
# define ZEND_ATTRIBUTE_ALLOC_SIZE2(X,Y) __attribute__ ((alloc_size(X,Y)))
#else
# define ZEND_ATTRIBUTE_ALLOC_SIZE(X)
# define ZEND_ATTRIBUTE_ALLOC_SIZE2(X,Y)
#endif
/* Format string checks are disabled by default, because we use custom format modifiers (like %p),
* which cause a large amount of false positives. You can enable format checks by adding
* -DZEND_CHECK_FORMAT_STRINGS to CFLAGS. */
#if defined(ZEND_CHECK_FORMAT_STRINGS) && (ZEND_GCC_VERSION >= 2007 || __has_attribute(format))
# define ZEND_ATTRIBUTE_FORMAT(type, idx, first) __attribute__ ((format(type, idx, first)))
#else
# define ZEND_ATTRIBUTE_FORMAT(type, idx, first)
#endif
#if defined(ZEND_CHECK_FORMAT_STRINGS) && ((ZEND_GCC_VERSION >= 3001 && !defined(__INTEL_COMPILER)) || __has_attribute(format))
# define ZEND_ATTRIBUTE_PTR_FORMAT(type, idx, first) __attribute__ ((format(type, idx, first)))
#else
# define ZEND_ATTRIBUTE_PTR_FORMAT(type, idx, first)
#endif
#if ZEND_GCC_VERSION >= 3001 || __has_attribute(deprecated)
# define ZEND_ATTRIBUTE_DEPRECATED __attribute__((deprecated))
#elif defined(ZEND_WIN32)
# define ZEND_ATTRIBUTE_DEPRECATED __declspec(deprecated)
#else
# define ZEND_ATTRIBUTE_DEPRECATED
#endif
#if defined(__GNUC__) && ZEND_GCC_VERSION >= 4003
# define ZEND_ATTRIBUTE_UNUSED __attribute__((unused))
# define ZEND_ATTRIBUTE_UNUSED_LABEL __attribute__((cold, unused));
# define ZEND_COLD __attribute__((cold))
# define ZEND_HOT __attribute__((hot))
#else
# define ZEND_ATTRIBUTE_UNUSED
# define ZEND_ATTRIBUTE_UNUSED_LABEL
# define ZEND_COLD
# define ZEND_HOT
#endif
#if defined(__GNUC__) && ZEND_GCC_VERSION >= 3004 && defined(__i386__)
# define ZEND_FASTCALL __attribute__((fastcall))
#elif defined(_MSC_VER) && defined(_M_IX86) && _MSC_VER == 1700
# define ZEND_FASTCALL __fastcall
#elif defined(_MSC_VER) && _MSC_VER >= 1800 && !defined(__clang__)
# define ZEND_FASTCALL __vectorcall
#else
# define ZEND_FASTCALL
#endif
#ifndef restrict
# if defined(__GNUC__) && ZEND_GCC_VERSION >= 3004
# else
# define __restrict__
# endif
# define restrict __restrict__
#endif
#if (defined(__GNUC__) && __GNUC__ >= 3 && !defined(__INTEL_COMPILER) && !defined(DARWIN) && !defined(__hpux) && !defined(_AIX) && !defined(__osf__)) || __has_attribute(noreturn)
# define HAVE_NORETURN
# define ZEND_NORETURN __attribute__((noreturn))
#elif defined(ZEND_WIN32)
# define HAVE_NORETURN
# define ZEND_NORETURN __declspec(noreturn)
#else
# define ZEND_NORETURN
#endif
#if (defined(__GNUC__) && __GNUC__ >= 3 && !defined(__INTEL_COMPILER) && !defined(DARWIN) && !defined(__hpux) && !defined(_AIX) && !defined(__osf__))
# define HAVE_NORETURN_ALIAS
# define HAVE_ATTRIBUTE_WEAK
#endif
#if ZEND_GCC_VERSION >= 3001 || __has_builtin(__builtin_constant_p)
# define HAVE_BUILTIN_CONSTANT_P
#endif
#ifdef HAVE_BUILTIN_CONSTANT_P
# define ZEND_CONST_COND(_condition, _default) \
(__builtin_constant_p(_condition) ? (_condition) : (_default))
#else
# define ZEND_CONST_COND(_condition, _default) \
(_default)
#endif
#if ZEND_DEBUG
# define zend_always_inline inline
# define zend_never_inline
#else
# if defined(__GNUC__)
# if __GNUC__ >= 3
# define zend_always_inline inline __attribute__((always_inline))
# define zend_never_inline __attribute__((noinline))
# else
# define zend_always_inline inline
# define zend_never_inline
# endif
# elif defined(_MSC_VER)
# define zend_always_inline __forceinline
# define zend_never_inline __declspec(noinline)
# else
# if __has_attribute(always_inline)
# define zend_always_inline inline __attribute__((always_inline))
# else
# define zend_always_inline inline
# endif
# if __has_attribute(noinline)
# define zend_never_inline __attribute__((noinline))
# else
# define zend_never_inline
# endif
# endif
#endif /* ZEND_DEBUG */
#if PHP_HAVE_BUILTIN_EXPECT
# define EXPECTED(condition) __builtin_expect(!!(condition), 1)
# define UNEXPECTED(condition) __builtin_expect(!!(condition), 0)
#else
# define EXPECTED(condition) (condition)
# define UNEXPECTED(condition) (condition)
#endif
#ifndef XtOffsetOf
# if defined(CRAY) || (defined(__ARMCC_VERSION) && !defined(LINUX))
# ifdef __STDC__
# define XtOffset(p_type, field) _Offsetof(p_type, field)
# else
# ifdef CRAY2
# define XtOffset(p_type, field) \
(sizeof(int)*((unsigned int)&(((p_type)NULL)->field)))
# else /* !CRAY2 */
# define XtOffset(p_type, field) ((unsigned int)&(((p_type)NULL)->field))
# endif /* !CRAY2 */
# endif /* __STDC__ */
# else /* ! (CRAY || __arm) */
# define XtOffset(p_type, field) \
((zend_long) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
# endif /* !CRAY */
# ifdef offsetof
# define XtOffsetOf(s_type, field) offsetof(s_type, field)
# else
# define XtOffsetOf(s_type, field) XtOffset(s_type*, field)
# endif
#endif
#if (HAVE_ALLOCA || (defined (__GNUC__) && __GNUC__ >= 2)) && !(defined(ZTS)) && !(defined(ZTS) && defined(HPUX)) && !defined(DARWIN)
# define ZEND_ALLOCA_MAX_SIZE (32 * 1024)
# define ALLOCA_FLAG(name) \
zend_bool name;
# define SET_ALLOCA_FLAG(name) \
name = 1
# define do_alloca_ex(size, limit, use_heap) \
((use_heap = (UNEXPECTED((size) > (limit)))) ? emalloc(size) : alloca(size))
# define do_alloca(size, use_heap) \
do_alloca_ex(size, ZEND_ALLOCA_MAX_SIZE, use_heap)
# define free_alloca(p, use_heap) \
do { if (UNEXPECTED(use_heap)) efree(p); } while (0)
#else
# define ALLOCA_FLAG(name)
# define SET_ALLOCA_FLAG(name)
# define do_alloca(p, use_heap) emalloc(p)
# define free_alloca(p, use_heap) efree(p)
#endif
#ifdef HAVE_SIGSETJMP
# define SETJMP(a) sigsetjmp(a, 0)
# define LONGJMP(a,b) siglongjmp(a, b)
# define JMP_BUF sigjmp_buf
#else
# define SETJMP(a) setjmp(a)
# define LONGJMP(a,b) longjmp(a, b)
# define JMP_BUF jmp_buf
#endif
#if ZEND_DEBUG
# define ZEND_FILE_LINE_D const char *__zend_filename, const uint32_t __zend_lineno
# define ZEND_FILE_LINE_DC , ZEND_FILE_LINE_D
# define ZEND_FILE_LINE_ORIG_D const char *__zend_orig_filename, const uint32_t __zend_orig_lineno
# define ZEND_FILE_LINE_ORIG_DC , ZEND_FILE_LINE_ORIG_D
# define ZEND_FILE_LINE_RELAY_C __zend_filename, __zend_lineno
# define ZEND_FILE_LINE_RELAY_CC , ZEND_FILE_LINE_RELAY_C
# define ZEND_FILE_LINE_C __FILE__, __LINE__
# define ZEND_FILE_LINE_CC , ZEND_FILE_LINE_C
# define ZEND_FILE_LINE_EMPTY_C NULL, 0
# define ZEND_FILE_LINE_EMPTY_CC , ZEND_FILE_LINE_EMPTY_C
# define ZEND_FILE_LINE_ORIG_RELAY_C __zend_orig_filename, __zend_orig_lineno
# define ZEND_FILE_LINE_ORIG_RELAY_CC , ZEND_FILE_LINE_ORIG_RELAY_C
#else
# define ZEND_FILE_LINE_D
# define ZEND_FILE_LINE_DC
# define ZEND_FILE_LINE_ORIG_D
# define ZEND_FILE_LINE_ORIG_DC
# define ZEND_FILE_LINE_RELAY_C
# define ZEND_FILE_LINE_RELAY_CC
# define ZEND_FILE_LINE_C
# define ZEND_FILE_LINE_CC
# define ZEND_FILE_LINE_EMPTY_C
# define ZEND_FILE_LINE_EMPTY_CC
# define ZEND_FILE_LINE_ORIG_RELAY_C
# define ZEND_FILE_LINE_ORIG_RELAY_CC
#endif /* ZEND_DEBUG */
#if ZEND_DEBUG
# define Z_DBG(expr) (expr)
#else
# define Z_DBG(expr)
#endif
#ifdef ZTS
# define ZTS_V 1
#else
# define ZTS_V 0
#endif
#ifndef LONG_MAX
# define LONG_MAX 2147483647L
#endif
#ifndef LONG_MIN
# define LONG_MIN (- LONG_MAX - 1)
#endif
#define MAX_LENGTH_OF_DOUBLE 32
#undef MIN
#undef MAX
#define MAX(a, b) (((a)>(b))?(a):(b))
#define MIN(a, b) (((a)<(b))?(a):(b))
/* We always define a function, even if there's a macro or expression we could
* alias, so that using it in contexts where we can't make function calls
* won't fail to compile on some machines and not others.
*/
static zend_always_inline double _zend_get_inf(void) /* {{{ */
{
#ifdef INFINITY
return INFINITY;
#elif HAVE_HUGE_VAL_INF
return HUGE_VAL;
#elif defined(__i386__) || defined(_X86_) || defined(ALPHA) || defined(_ALPHA) || defined(__alpha)
# define _zend_DOUBLE_INFINITY_HIGH 0x7ff00000
double val = 0.0;
((uint32_t*)&val)[1] = _zend_DOUBLE_INFINITY_HIGH;
((uint32_t*)&val)[0] = 0;
return val;
#elif HAVE_ATOF_ACCEPTS_INF
return atof("INF");
#else
return 1.0/0.0;
#endif
} /* }}} */
#define ZEND_INFINITY (_zend_get_inf())
static zend_always_inline double _zend_get_nan(void) /* {{{ */
{
#ifdef NAN
return NAN;
#elif HAVE_HUGE_VAL_NAN
return HUGE_VAL + -HUGE_VAL;
#elif defined(__i386__) || defined(_X86_) || defined(ALPHA) || defined(_ALPHA) || defined(__alpha)
# define _zend_DOUBLE_QUIET_NAN_HIGH 0xfff80000
double val = 0.0;
((uint32_t*)&val)[1] = _zend_DOUBLE_QUIET_NAN_HIGH;
((uint32_t*)&val)[0] = 0;
return val;
#elif HAVE_ATOF_ACCEPTS_NAN
return atof("NAN");
#else
return 0.0/0.0;
#endif
} /* }}} */
#define ZEND_NAN (_zend_get_nan())
#define ZEND_STRL(str) (str), (sizeof(str)-1)
#define ZEND_STRS(str) (str), (sizeof(str))
#define ZEND_NORMALIZE_BOOL(n) \
((n) ? (((n)<0) ? -1 : 1) : 0)
#define ZEND_TRUTH(x) ((x) ? 1 : 0)
#define ZEND_LOG_XOR(a, b) (ZEND_TRUTH(a) ^ ZEND_TRUTH(b))
#define ZEND_MAX_RESERVED_RESOURCES 6
/* excpt.h on Digital Unix 4.0 defines function_table */
#undef function_table
#ifdef ZEND_WIN32
#define ZEND_SECURE_ZERO(var, size) RtlSecureZeroMemory((var), (size))
#else
#define ZEND_SECURE_ZERO(var, size) explicit_bzero((var), (size))
#endif
/* This check should only be used on network socket, not file descriptors */
#ifdef ZEND_WIN32
#define ZEND_VALID_SOCKET(sock) (INVALID_SOCKET != (sock))
#else
#define ZEND_VALID_SOCKET(sock) ((sock) >= 0)
#endif
/* va_copy() is __va_copy() in old gcc versions.
* According to the autoconf manual, using
* memcpy(&dst, &src, sizeof(va_list))
* gives maximum portability. */
#ifndef va_copy
# ifdef __va_copy
# define va_copy(dest, src) __va_copy((dest), (src))
# else
# define va_copy(dest, src) memcpy(&(dest), &(src), sizeof(va_list))
# endif
#endif
#endif /* ZEND_PORTABILITY_H */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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