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cf3b711016a70051b463f71a48fb4b3b56e588fe
bx/include/bx/platform.h
Бранимир Караџић cf3b711016 Fixed constexpr-ness of bx::bitCast.
2024-11-14 21:08:13 -08:00

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/*
* Copyright 2010-2024 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bx/blob/master/LICENSE
*/
#ifndef BX_PLATFORM_H_HEADER_GUARD
#define BX_PLATFORM_H_HEADER_GUARD
// Architecture
#define BX_ARCH_32BIT 0
#define BX_ARCH_64BIT 0
// Compiler
#define BX_COMPILER_CLANG 0
#define BX_COMPILER_CLANG_ANALYZER 0
#define BX_COMPILER_GCC 0
#define BX_COMPILER_MSVC 0
// Endianness
#define BX_CPU_ENDIAN_BIG 0
#define BX_CPU_ENDIAN_LITTLE 0
// CPU
#define BX_CPU_ARM 0
#define BX_CPU_JIT 0
#define BX_CPU_MIPS 0
#define BX_CPU_PPC 0
#define BX_CPU_RISCV 0
#define BX_CPU_X86 0
// C Runtime
#define BX_CRT_BIONIC 0
#define BX_CRT_GLIBC 0
#define BX_CRT_LIBCXX 0
#define BX_CRT_MINGW 0
#define BX_CRT_MSVC 0
#define BX_CRT_NEWLIB 0
#ifndef BX_CRT_NONE
# define BX_CRT_NONE 0
#endif // BX_CRT_NONE
// Language standard version
#define BX_LANGUAGE_CPP17 201703L
#define BX_LANGUAGE_CPP20 202002L
#define BX_LANGUAGE_CPP23 202207L
// Platform
#define BX_PLATFORM_ANDROID 0
#define BX_PLATFORM_BSD 0
#define BX_PLATFORM_EMSCRIPTEN 0
#define BX_PLATFORM_HAIKU 0
#define BX_PLATFORM_HURD 0
#define BX_PLATFORM_IOS 0
#define BX_PLATFORM_LINUX 0
#define BX_PLATFORM_NX 0
#define BX_PLATFORM_OSX 0
#define BX_PLATFORM_PS4 0
#define BX_PLATFORM_PS5 0
#define BX_PLATFORM_RPI 0
#define BX_PLATFORM_VISIONOS 0
#define BX_PLATFORM_WINDOWS 0
#define BX_PLATFORM_WINRT 0
#define BX_PLATFORM_XBOXONE 0
// http://sourceforge.net/apps/mediawiki/predef/index.php?title=Compilers
#if defined(__clang__)
// clang defines __GNUC__ or _MSC_VER
# undef BX_COMPILER_CLANG
# define BX_COMPILER_CLANG (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
# if defined(__clang_analyzer__)
# undef BX_COMPILER_CLANG_ANALYZER
# define BX_COMPILER_CLANG_ANALYZER 1
# endif // defined(__clang_analyzer__)
#elif defined(_MSC_VER)
# undef BX_COMPILER_MSVC
# define BX_COMPILER_MSVC _MSC_VER
#elif defined(__GNUC__)
# undef BX_COMPILER_GCC
# define BX_COMPILER_GCC (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#else
# error "BX_COMPILER_* is not defined!"
#endif //
// http://sourceforge.net/apps/mediawiki/predef/index.php?title=Architectures
#if defined(__arm__) \
|| defined(__aarch64__) \
|| defined(_M_ARM)
# undef BX_CPU_ARM
# define BX_CPU_ARM 1
# define BX_CACHE_LINE_SIZE 64
#elif defined(__MIPSEL__) \
|| defined(__mips_isa_rev) \
|| defined(__mips64)
# undef BX_CPU_MIPS
# define BX_CPU_MIPS 1
# define BX_CACHE_LINE_SIZE 64
#elif defined(_M_PPC) \
|| defined(__powerpc__) \
|| defined(__powerpc64__)
# undef BX_CPU_PPC
# define BX_CPU_PPC 1
# define BX_CACHE_LINE_SIZE 128
#elif defined(__riscv) \
|| defined(__riscv__) \
|| defined(RISCVEL)
# undef BX_CPU_RISCV
# define BX_CPU_RISCV 1
# define BX_CACHE_LINE_SIZE 64
#elif defined(_M_IX86) \
|| defined(_M_X64) \
|| defined(__i386__) \
|| defined(__x86_64__)
# undef BX_CPU_X86
# define BX_CPU_X86 1
# define BX_CACHE_LINE_SIZE 64
#else // PNaCl doesn't have CPU defined.
# undef BX_CPU_JIT
# define BX_CPU_JIT 1
# define BX_CACHE_LINE_SIZE 64
#endif //
#if defined(__x86_64__) \
|| defined(_M_X64) \
|| defined(__aarch64__) \
|| defined(__64BIT__) \
|| defined(__mips64) \
|| defined(__powerpc64__) \
|| defined(__ppc64__) \
|| defined(__LP64__)
# undef BX_ARCH_64BIT
# define BX_ARCH_64BIT 64
#else
# undef BX_ARCH_32BIT
# define BX_ARCH_32BIT 32
#endif //
#if BX_CPU_PPC
// __BIG_ENDIAN__ is gcc predefined macro
# if defined(__BIG_ENDIAN__)
# undef BX_CPU_ENDIAN_BIG
# define BX_CPU_ENDIAN_BIG 1
# else
# undef BX_CPU_ENDIAN_LITTLE
# define BX_CPU_ENDIAN_LITTLE 1
# endif
#else
# undef BX_CPU_ENDIAN_LITTLE
# define BX_CPU_ENDIAN_LITTLE 1
#endif // BX_CPU_PPC
// http://sourceforge.net/apps/mediawiki/predef/index.php?title=Operating_Systems
#if defined(_DURANGO) || defined(_XBOX_ONE)
# undef BX_PLATFORM_XBOXONE
# define BX_PLATFORM_XBOXONE 1
#elif defined(_WIN32) || defined(_WIN64)
// http://msdn.microsoft.com/en-us/library/6sehtctf.aspx
# ifndef NOMINMAX
# define NOMINMAX
# endif // NOMINMAX
// If _USING_V110_SDK71_ is defined it means we are using the v110_xp or v120_xp toolset.
# if defined(_MSC_VER) && (_MSC_VER >= 1700) && !defined(_USING_V110_SDK71_)
# include <winapifamily.h>
# endif // defined(_MSC_VER) && (_MSC_VER >= 1700) && (!_USING_V110_SDK71_)
# if !defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP)
# undef BX_PLATFORM_WINDOWS
# if !defined(WINVER) && !defined(_WIN32_WINNT)
# if BX_ARCH_64BIT
// When building 64-bit target Win7 and above.
# define WINVER 0x0601
# define _WIN32_WINNT 0x0601
# else
// Windows Server 2003 with SP1, Windows XP with SP2 and above
# define WINVER 0x0502
# define _WIN32_WINNT 0x0502
# endif // BX_ARCH_64BIT
# endif // !defined(WINVER) && !defined(_WIN32_WINNT)
# define BX_PLATFORM_WINDOWS _WIN32_WINNT
# else
# undef BX_PLATFORM_WINRT
# define BX_PLATFORM_WINRT 1
# endif
#elif defined(__ANDROID__)
// Android compiler defines __linux__
# include <sys/cdefs.h> // Defines __BIONIC__ and includes android/api-level.h
# undef BX_PLATFORM_ANDROID
# define BX_PLATFORM_ANDROID __ANDROID_API__
#elif defined(__VCCOREVER__)
// RaspberryPi compiler defines __linux__
# undef BX_PLATFORM_RPI
# define BX_PLATFORM_RPI 1
#elif defined(__linux__)
# undef BX_PLATFORM_LINUX
# define BX_PLATFORM_LINUX 1
#elif defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) \
|| defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__)
# undef BX_PLATFORM_IOS
# define BX_PLATFORM_IOS 1
#elif defined(__has_builtin) && __has_builtin(__is_target_os) && __is_target_os(xros)
# undef BX_PLATFORM_VISIONOS
# define BX_PLATFORM_VISIONOS 1
#elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
# undef BX_PLATFORM_OSX
# define BX_PLATFORM_OSX __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
#elif defined(__EMSCRIPTEN__)
# include <emscripten/version.h>
# undef BX_PLATFORM_EMSCRIPTEN
# define BX_PLATFORM_EMSCRIPTEN (__EMSCRIPTEN_major__ * 10000 + __EMSCRIPTEN_minor__ * 100 + __EMSCRIPTEN_tiny__)
#elif defined(__ORBIS__)
# undef BX_PLATFORM_PS4
# define BX_PLATFORM_PS4 1
#elif defined(__PROSPERO__)
# undef BX_PLATFORM_PS5
# define BX_PLATFORM_PS5 1
#elif defined(__FreeBSD__) \
|| defined(__FreeBSD_kernel__) \
|| defined(__NetBSD__) \
|| defined(__OpenBSD__) \
|| defined(__DragonFly__)
# undef BX_PLATFORM_BSD
# define BX_PLATFORM_BSD 1
#elif defined(__GNU__)
# undef BX_PLATFORM_HURD
# define BX_PLATFORM_HURD 1
#elif defined(__NX__)
# undef BX_PLATFORM_NX
# define BX_PLATFORM_NX 1
#elif defined(__HAIKU__)
# undef BX_PLATFORM_HAIKU
# define BX_PLATFORM_HAIKU 1
#endif //
#if !BX_CRT_NONE
// https://sourceforge.net/p/predef/wiki/Libraries/
# if defined(__BIONIC__)
# undef BX_CRT_BIONIC
# define BX_CRT_BIONIC 1
# elif defined(__GLIBC__)
# undef BX_CRT_GLIBC
# define BX_CRT_GLIBC (__GLIBC__ * 10000 + __GLIBC_MINOR__ * 100)
# elif defined(__MINGW32__) \
|| defined(__MINGW64__)
# undef BX_CRT_MINGW
# define BX_CRT_MINGW 1
# elif defined(_MSC_VER)
# undef BX_CRT_MSVC
# define BX_CRT_MSVC 1
# elif defined(__apple_build_version__) \
|| BX_PLATFORM_PS4 \
|| BX_PLATFORM_EMSCRIPTEN \
|| defined(__llvm__)
# undef BX_CRT_LIBCXX
# define BX_CRT_LIBCXX 1
# endif //
#endif // !BX_CRT_NONE
///
#define BX_PLATFORM_POSIX (0 \
|| BX_PLATFORM_ANDROID \
|| BX_PLATFORM_BSD \
|| BX_PLATFORM_EMSCRIPTEN \
|| BX_PLATFORM_HAIKU \
|| BX_PLATFORM_HURD \
|| BX_PLATFORM_IOS \
|| BX_PLATFORM_LINUX \
|| BX_PLATFORM_NX \
|| BX_PLATFORM_OSX \
|| BX_PLATFORM_PS4 \
|| BX_PLATFORM_PS5 \
|| BX_PLATFORM_RPI \
|| BX_PLATFORM_VISIONOS \
)
///
#define BX_PLATFORM_NONE !(0 \
|| BX_PLATFORM_ANDROID \
|| BX_PLATFORM_BSD \
|| BX_PLATFORM_EMSCRIPTEN \
|| BX_PLATFORM_HAIKU \
|| BX_PLATFORM_HURD \
|| BX_PLATFORM_IOS \
|| BX_PLATFORM_LINUX \
|| BX_PLATFORM_NX \
|| BX_PLATFORM_OSX \
|| BX_PLATFORM_PS4 \
|| BX_PLATFORM_PS5 \
|| BX_PLATFORM_RPI \
|| BX_PLATFORM_VISIONOS \
|| BX_PLATFORM_WINDOWS \
|| BX_PLATFORM_WINRT \
|| BX_PLATFORM_XBOXONE \
)
///
#define BX_PLATFORM_OS_CONSOLE (0 \
|| BX_PLATFORM_NX \
|| BX_PLATFORM_PS4 \
|| BX_PLATFORM_PS5 \
|| BX_PLATFORM_WINRT \
|| BX_PLATFORM_XBOXONE \
)
///
#define BX_PLATFORM_OS_DESKTOP (0 \
|| BX_PLATFORM_BSD \
|| BX_PLATFORM_HAIKU \
|| BX_PLATFORM_HURD \
|| BX_PLATFORM_LINUX \
|| BX_PLATFORM_OSX \
|| BX_PLATFORM_WINDOWS \
)
///
#define BX_PLATFORM_OS_EMBEDDED (0 \
|| BX_PLATFORM_RPI \
)
///
#define BX_PLATFORM_OS_MOBILE (0 \
|| BX_PLATFORM_ANDROID \
|| BX_PLATFORM_IOS \
)
///
#define BX_PLATFORM_OS_WEB (0 \
|| BX_PLATFORM_EMSCRIPTEN \
)
///
#if BX_COMPILER_GCC
# define BX_COMPILER_NAME "GCC " \
BX_STRINGIZE(__GNUC__) "." \
BX_STRINGIZE(__GNUC_MINOR__) "." \
BX_STRINGIZE(__GNUC_PATCHLEVEL__)
#elif BX_COMPILER_CLANG
# define BX_COMPILER_NAME "Clang " \
BX_STRINGIZE(__clang_major__) "." \
BX_STRINGIZE(__clang_minor__) "." \
BX_STRINGIZE(__clang_patchlevel__)
#elif BX_COMPILER_MSVC
# if BX_COMPILER_MSVC >= 1930 // Visual Studio 2022
# define BX_COMPILER_NAME "MSVC 17.0"
# elif BX_COMPILER_MSVC >= 1920 // Visual Studio 2019
# define BX_COMPILER_NAME "MSVC 16.0"
# else
# define BX_COMPILER_NAME "MSVC"
# endif //
#endif // BX_COMPILER_
#if BX_PLATFORM_ANDROID
# define BX_PLATFORM_NAME "Android " \
BX_STRINGIZE(BX_PLATFORM_ANDROID)
#elif BX_PLATFORM_BSD
# define BX_PLATFORM_NAME "BSD"
#elif BX_PLATFORM_EMSCRIPTEN
# define BX_PLATFORM_NAME "Emscripten " \
BX_STRINGIZE(__EMSCRIPTEN_major__) "." \
BX_STRINGIZE(__EMSCRIPTEN_minor__) "." \
BX_STRINGIZE(__EMSCRIPTEN_tiny__)
#elif BX_PLATFORM_HAIKU
# define BX_PLATFORM_NAME "Haiku"
#elif BX_PLATFORM_HURD
# define BX_PLATFORM_NAME "Hurd"
#elif BX_PLATFORM_IOS
# define BX_PLATFORM_NAME "iOS"
#elif BX_PLATFORM_LINUX
# define BX_PLATFORM_NAME "Linux"
#elif BX_PLATFORM_NONE
# define BX_PLATFORM_NAME "None"
#elif BX_PLATFORM_NX
# define BX_PLATFORM_NAME "NX"
#elif BX_PLATFORM_OSX
# define BX_PLATFORM_NAME "macOS"
#elif BX_PLATFORM_PS4
# define BX_PLATFORM_NAME "PlayStation 4"
#elif BX_PLATFORM_PS5
# define BX_PLATFORM_NAME "PlayStation 5"
#elif BX_PLATFORM_RPI
# define BX_PLATFORM_NAME "RaspberryPi"
#elif BX_PLATFORM_VISIONOS
# define BX_PLATFORM_NAME "visionOS"
#elif BX_PLATFORM_WINDOWS
# define BX_PLATFORM_NAME "Windows"
#elif BX_PLATFORM_WINRT
# define BX_PLATFORM_NAME "WinRT"
#elif BX_PLATFORM_XBOXONE
# define BX_PLATFORM_NAME "Xbox One"
#else
# error "Unknown BX_PLATFORM!"
#endif // BX_PLATFORM_
#if BX_CPU_ARM
# define BX_CPU_NAME "ARM"
#elif BX_CPU_JIT
# define BX_CPU_NAME "JIT-VM"
#elif BX_CPU_MIPS
# define BX_CPU_NAME "MIPS"
#elif BX_CPU_PPC
# define BX_CPU_NAME "PowerPC"
#elif BX_CPU_RISCV
# define BX_CPU_NAME "RISC-V"
#elif BX_CPU_X86
# define BX_CPU_NAME "x86"
#endif // BX_CPU_
#if BX_CRT_BIONIC
# define BX_CRT_NAME "Bionic libc"
#elif BX_CRT_GLIBC
# define BX_CRT_NAME "GNU C Library"
#elif BX_CRT_MSVC
# define BX_CRT_NAME "MSVC C Runtime"
#elif BX_CRT_MINGW
# define BX_CRT_NAME "MinGW C Runtime"
#elif BX_CRT_LIBCXX
# define BX_CRT_NAME "Clang C Library"
#elif BX_CRT_NEWLIB
# define BX_CRT_NAME "Newlib"
#elif BX_CRT_NONE
# define BX_CRT_NAME "None"
#else
# define BX_CRT_NAME "Unknown CRT"
#endif // BX_CRT_
#if BX_ARCH_32BIT
# define BX_ARCH_NAME "32-bit"
#elif BX_ARCH_64BIT
# define BX_ARCH_NAME "64-bit"
#endif // BX_ARCH_
#if defined(__cplusplus)
# if BX_COMPILER_MSVC && defined(_MSVC_LANG) && _MSVC_LANG != __cplusplus
# error "When using MSVC you must set /Zc:__cplusplus compiler option."
# endif // BX_COMPILER_MSVC && defined(_MSVC_LANG) && _MSVC_LANG != __cplusplus
# if __cplusplus < BX_LANGUAGE_CPP17
# define BX_CPP_NAME "C++Unsupported"
# elif __cplusplus < BX_LANGUAGE_CPP20
# define BX_CPP_NAME "C++17"
# elif __cplusplus < BX_LANGUAGE_CPP23
# define BX_CPP_NAME "C++20"
# else
// See: https://gist.github.com/bkaradzic/2e39896bc7d8c34e042b#orthodox-c
# define BX_CPP_NAME "C++WayTooModern"
# endif // BX_CPP_NAME
#else
# define BX_CPP_NAME "C++Unknown"
#endif // defined(__cplusplus)
#if BX_COMPILER_MSVC && (!defined(_MSVC_TRADITIONAL) || _MSVC_TRADITIONAL)
# error "When using MSVC you must set /Zc:preprocessor compiler option."
#endif // BX_COMPILER_MSVC && (!defined(_MSVC_TRADITIONAL) || _MSVC_TRADITIONAL)
#if defined(__cplusplus)
static_assert(__cplusplus >= BX_LANGUAGE_CPP17, "\n\n"
"\t** IMPORTANT! **\n\n"
"\tC++17 standard support is required to build.\n"
"\t\n");
// https://releases.llvm.org/
static_assert(!BX_COMPILER_CLANG || BX_COMPILER_CLANG >= 110000, "\n\n"
"\t** IMPORTANT! **\n\n"
"\tMinimum supported Clang version is 11.0 (October 12, 2020).\n"
"\t\n");
// https://gcc.gnu.org/releases.html
static_assert(!BX_COMPILER_GCC || BX_COMPILER_GCC >= 80400, "\n\n"
"\t** IMPORTANT! **\n\n"
"\tMinimum supported GCC version is 8.4 (March 4, 2020).\n"
"\t\n");
// https://learn.microsoft.com/en-us/visualstudio/releases/2019/history
static_assert(!BX_COMPILER_MSVC || BX_COMPILER_MSVC >= 1927, "\n\n"
"\t** IMPORTANT! **\n\n"
"\tMinimum supported MSVC 19.27 / Visual Studio 2019 version 16.7 (August 5, 2020).\n"
"\t\n");
static_assert(!BX_CPU_ENDIAN_BIG, "\n\n"
"\t** IMPORTANT! **\n\n"
"\tThe code was not tested for big endian, and big endian CPU is considered unsupported.\n"
"\t\n");
static_assert(!BX_PLATFORM_BSD || !BX_PLATFORM_HAIKU || !BX_PLATFORM_HURD, "\n\n"
"\t** IMPORTANT! **\n\n"
"\tYou're compiling for unsupported platform!\n"
"\tIf you wish to support this platform, make your own fork, and modify code for _yourself_.\n"
"\t\n"
"\tDo not submit PR to main repo, it won't be considered, and it would code rot anyway. I have no ability\n"
"\tto test on these platforms, and over years there wasn't any serious contributor who wanted to take\n"
"\tburden of maintaining code for these platforms.\n"
"\t\n");
#endif // defined(__cplusplus)
#endif // BX_PLATFORM_H_HEADER_GUARD
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