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- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- // This file doesn't belong to any GN target by design for faster build and
- // less developer overhead.
- // This file adds build flags about the OS we're currently building on. They are
- // defined directly in this file instead of via a `buildflag_header` target in a
- // GN file for faster build. They are defined using the corresponding OS defines
- // (e.g. OS_WIN) which are also defined in this file (except for OS_CHROMEOS,
- // which is set by the build system). These defines are deprecated and should
- // NOT be used directly. For example:
- // Please Use: #if BUILDFLAG(IS_WIN)
- // Deprecated: #if defined(OS_WIN)
- //
- // Operating System:
- // IS_AIX / IS_ANDROID / IS_ASMJS / IS_CHROMEOS / IS_FREEBSD / IS_FUCHSIA /
- // IS_IOS / IS_IOS_MACCATALYST / IS_LINUX / IS_MAC / IS_NACL / IS_NETBSD /
- // IS_OPENBSD / IS_QNX / IS_SOLARIS / IS_WIN
- // Operating System family:
- // IS_APPLE: IOS or MAC or IOS_MACCATALYST
- // IS_BSD: FREEBSD or NETBSD or OPENBSD
- // IS_POSIX: AIX or ANDROID or ASMJS or CHROMEOS or FREEBSD or IOS or LINUX
- // or MAC or NACL or NETBSD or OPENBSD or QNX or SOLARIS
- // This file also adds defines specific to the platform, architecture etc.
- //
- // Compiler:
- // COMPILER_MSVC / COMPILER_GCC
- //
- // Processor:
- // ARCH_CPU_ARM64 / ARCH_CPU_ARMEL / ARCH_CPU_LOONG32 / ARCH_CPU_LOONG64 /
- // ARCH_CPU_MIPS / ARCH_CPU_MIPS64 / ARCH_CPU_MIPS64EL / ARCH_CPU_MIPSEL /
- // ARCH_CPU_PPC64 / ARCH_CPU_S390 / ARCH_CPU_S390X / ARCH_CPU_X86 /
- // ARCH_CPU_X86_64 / ARCH_CPU_RISCV64
- // Processor family:
- // ARCH_CPU_ARM_FAMILY: ARMEL or ARM64
- // ARCH_CPU_LOONG_FAMILY: LOONG32 or LOONG64
- // ARCH_CPU_MIPS_FAMILY: MIPS64EL or MIPSEL or MIPS64 or MIPS
- // ARCH_CPU_PPC64_FAMILY: PPC64
- // ARCH_CPU_S390_FAMILY: S390 or S390X
- // ARCH_CPU_X86_FAMILY: X86 or X86_64
- // ARCH_CPU_RISCV_FAMILY: Riscv64
- // Processor features:
- // ARCH_CPU_31_BITS / ARCH_CPU_32_BITS / ARCH_CPU_64_BITS
- // ARCH_CPU_BIG_ENDIAN / ARCH_CPU_LITTLE_ENDIAN
- #ifndef BUILD_BUILD_CONFIG_H_
- #define BUILD_BUILD_CONFIG_H_
- #include "build/buildflag.h" // IWYU pragma: export
- // A set of macros to use for platform detection.
- #if defined(__native_client__)
- // __native_client__ must be first, so that other OS_ defines are not set.
- #define OS_NACL 1
- #elif defined(ANDROID)
- #define OS_ANDROID 1
- #elif defined(__APPLE__)
- // Only include TargetConditionals after testing ANDROID as some Android builds
- // on the Mac have this header available and it's not needed unless the target
- // is really an Apple platform.
- #include <TargetConditionals.h>
- #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
- #define OS_IOS 1
- // Catalyst is the technology that allows running iOS apps on macOS. These
- // builds are both OS_IOS and OS_IOS_MACCATALYST.
- #if defined(TARGET_OS_MACCATALYST) && TARGET_OS_MACCATALYST
- #define OS_IOS_MACCATALYST
- #endif // defined(TARGET_OS_MACCATALYST) && TARGET_OS_MACCATALYST
- #else
- #define OS_MAC 1
- #endif // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
- #elif defined(__linux__)
- #if !defined(OS_CHROMEOS)
- // Do not define OS_LINUX on Chrome OS build.
- // The OS_CHROMEOS macro is defined in GN.
- #define OS_LINUX 1
- #endif // !defined(OS_CHROMEOS)
- // Include a system header to pull in features.h for glibc/uclibc macros.
- #include <assert.h>
- #if defined(__GLIBC__) && !defined(__UCLIBC__)
- // We really are using glibc, not uClibc pretending to be glibc.
- #define LIBC_GLIBC 1
- #endif
- #elif defined(_WIN32)
- #define OS_WIN 1
- #elif defined(__Fuchsia__)
- #define OS_FUCHSIA 1
- #elif defined(__FreeBSD__)
- #define OS_FREEBSD 1
- #elif defined(__NetBSD__)
- #define OS_NETBSD 1
- #elif defined(__OpenBSD__)
- #define OS_OPENBSD 1
- #elif defined(__sun)
- #define OS_SOLARIS 1
- #elif defined(__QNXNTO__)
- #define OS_QNX 1
- #elif defined(_AIX)
- #define OS_AIX 1
- #elif defined(__asmjs__) || defined(__wasm__)
- #define OS_ASMJS 1
- #elif defined(__MVS__)
- #define OS_ZOS 1
- #else
- #error Please add support for your platform in build/build_config.h
- #endif
- // NOTE: Adding a new port? Please follow
- // https://chromium.googlesource.com/chromium/src/+/main/docs/new_port_policy.md
- #if defined(OS_MAC) || defined(OS_IOS)
- #define OS_APPLE 1
- #endif
- // For access to standard BSD features, use OS_BSD instead of a
- // more specific macro.
- #if defined(OS_FREEBSD) || defined(OS_NETBSD) || defined(OS_OPENBSD)
- #define OS_BSD 1
- #endif
- // For access to standard POSIXish features, use OS_POSIX instead of a
- // more specific macro.
- #if defined(OS_AIX) || defined(OS_ANDROID) || defined(OS_ASMJS) || \
- defined(OS_FREEBSD) || defined(OS_IOS) || defined(OS_LINUX) || \
- defined(OS_CHROMEOS) || defined(OS_MAC) || defined(OS_NACL) || \
- defined(OS_NETBSD) || defined(OS_OPENBSD) || defined(OS_QNX) || \
- defined(OS_SOLARIS) || defined(OS_ZOS)
- #define OS_POSIX 1
- #endif
- // OS build flags
- #if defined(OS_AIX)
- #define BUILDFLAG_INTERNAL_IS_AIX() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_AIX() (0)
- #endif
- #if defined(OS_ANDROID)
- #define BUILDFLAG_INTERNAL_IS_ANDROID() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_ANDROID() (0)
- #endif
- #if defined(OS_APPLE)
- #define BUILDFLAG_INTERNAL_IS_APPLE() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_APPLE() (0)
- #endif
- #if defined(OS_ASMJS)
- #define BUILDFLAG_INTERNAL_IS_ASMJS() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_ASMJS() (0)
- #endif
- #if defined(OS_BSD)
- #define BUILDFLAG_INTERNAL_IS_BSD() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_BSD() (0)
- #endif
- #if defined(OS_CHROMEOS)
- #define BUILDFLAG_INTERNAL_IS_CHROMEOS() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_CHROMEOS() (0)
- #endif
- #if defined(OS_FREEBSD)
- #define BUILDFLAG_INTERNAL_IS_FREEBSD() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_FREEBSD() (0)
- #endif
- #if defined(OS_FUCHSIA)
- #define BUILDFLAG_INTERNAL_IS_FUCHSIA() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_FUCHSIA() (0)
- #endif
- #if defined(OS_IOS)
- #define BUILDFLAG_INTERNAL_IS_IOS() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_IOS() (0)
- #endif
- #if defined(OS_IOS_MACCATALYST)
- #define BUILDFLAG_INTERNAL_IS_IOS_MACCATALYST() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_IOS_MACCATALYST() (0)
- #endif
- #if defined(OS_LINUX)
- #define BUILDFLAG_INTERNAL_IS_LINUX() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_LINUX() (0)
- #endif
- #if defined(OS_MAC)
- #define BUILDFLAG_INTERNAL_IS_MAC() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_MAC() (0)
- #endif
- #if defined(OS_NACL)
- #define BUILDFLAG_INTERNAL_IS_NACL() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_NACL() (0)
- #endif
- #if defined(OS_NETBSD)
- #define BUILDFLAG_INTERNAL_IS_NETBSD() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_NETBSD() (0)
- #endif
- #if defined(OS_OPENBSD)
- #define BUILDFLAG_INTERNAL_IS_OPENBSD() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_OPENBSD() (0)
- #endif
- #if defined(OS_POSIX)
- #define BUILDFLAG_INTERNAL_IS_POSIX() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_POSIX() (0)
- #endif
- #if defined(OS_QNX)
- #define BUILDFLAG_INTERNAL_IS_QNX() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_QNX() (0)
- #endif
- #if defined(OS_SOLARIS)
- #define BUILDFLAG_INTERNAL_IS_SOLARIS() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_SOLARIS() (0)
- #endif
- #if defined(OS_WIN)
- #define BUILDFLAG_INTERNAL_IS_WIN() (1)
- #else
- #define BUILDFLAG_INTERNAL_IS_WIN() (0)
- #endif
- // Compiler detection. Note: clang masquerades as GCC on POSIX and as MSVC on
- // Windows.
- #if defined(__GNUC__)
- #define COMPILER_GCC 1
- #elif defined(_MSC_VER)
- #define COMPILER_MSVC 1
- #else
- #error Please add support for your compiler in build/build_config.h
- #endif
- // Processor architecture detection. For more info on what's defined, see:
- // http://msdn.microsoft.com/en-us/library/b0084kay.aspx
- // http://www.agner.org/optimize/calling_conventions.pdf
- // or with gcc, run: "echo | gcc -E -dM -"
- #if defined(_M_X64) || defined(__x86_64__)
- #define ARCH_CPU_X86_FAMILY 1
- #define ARCH_CPU_X86_64 1
- #define ARCH_CPU_64_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #elif defined(_M_IX86) || defined(__i386__)
- #define ARCH_CPU_X86_FAMILY 1
- #define ARCH_CPU_X86 1
- #define ARCH_CPU_32_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #elif defined(__s390x__)
- #define ARCH_CPU_S390_FAMILY 1
- #define ARCH_CPU_S390X 1
- #define ARCH_CPU_64_BITS 1
- #define ARCH_CPU_BIG_ENDIAN 1
- #elif defined(__s390__)
- #define ARCH_CPU_S390_FAMILY 1
- #define ARCH_CPU_S390 1
- #define ARCH_CPU_31_BITS 1
- #define ARCH_CPU_BIG_ENDIAN 1
- #elif (defined(__PPC64__) || defined(__PPC__)) && defined(__BIG_ENDIAN__)
- #define ARCH_CPU_PPC64_FAMILY 1
- #define ARCH_CPU_PPC64 1
- #define ARCH_CPU_64_BITS 1
- #define ARCH_CPU_BIG_ENDIAN 1
- #elif defined(__PPC64__)
- #define ARCH_CPU_PPC64_FAMILY 1
- #define ARCH_CPU_PPC64 1
- #define ARCH_CPU_64_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #elif defined(__ARMEL__)
- #define ARCH_CPU_ARM_FAMILY 1
- #define ARCH_CPU_ARMEL 1
- #define ARCH_CPU_32_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #elif defined(__aarch64__) || defined(_M_ARM64)
- #define ARCH_CPU_ARM_FAMILY 1
- #define ARCH_CPU_ARM64 1
- #define ARCH_CPU_64_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #elif defined(__pnacl__) || defined(__asmjs__) || defined(__wasm__)
- #define ARCH_CPU_32_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #elif defined(__MIPSEL__)
- #if defined(__LP64__)
- #define ARCH_CPU_MIPS_FAMILY 1
- #define ARCH_CPU_MIPS64EL 1
- #define ARCH_CPU_64_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #else
- #define ARCH_CPU_MIPS_FAMILY 1
- #define ARCH_CPU_MIPSEL 1
- #define ARCH_CPU_32_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #endif
- #elif defined(__MIPSEB__)
- #if defined(__LP64__)
- #define ARCH_CPU_MIPS_FAMILY 1
- #define ARCH_CPU_MIPS64 1
- #define ARCH_CPU_64_BITS 1
- #define ARCH_CPU_BIG_ENDIAN 1
- #else
- #define ARCH_CPU_MIPS_FAMILY 1
- #define ARCH_CPU_MIPS 1
- #define ARCH_CPU_32_BITS 1
- #define ARCH_CPU_BIG_ENDIAN 1
- #endif
- #elif defined(__loongarch32)
- #define ARCH_CPU_LOONG_FAMILY 1
- #define ARCH_CPU_LOONG32 1
- #define ARCH_CPU_32_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #elif defined(__loongarch64)
- #define ARCH_CPU_LOONG_FAMILY 1
- #define ARCH_CPU_LOONG64 1
- #define ARCH_CPU_64_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #elif defined(__riscv) && (__riscv_xlen == 64)
- #define ARCH_CPU_RISCV_FAMILY 1
- #define ARCH_CPU_RISCV64 1
- #define ARCH_CPU_64_BITS 1
- #define ARCH_CPU_LITTLE_ENDIAN 1
- #else
- #error Please add support for your architecture in build/build_config.h
- #endif
- // Type detection for wchar_t.
- #if defined(OS_WIN)
- #define WCHAR_T_IS_UTF16
- #elif defined(OS_FUCHSIA)
- #define WCHAR_T_IS_UTF32
- #elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \
- (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff)
- #define WCHAR_T_IS_UTF32
- #elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \
- (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff)
- // On Posix, we'll detect short wchar_t, but projects aren't guaranteed to
- // compile in this mode (in particular, Chrome doesn't). This is intended for
- // other projects using base who manage their own dependencies and make sure
- // short wchar works for them.
- #define WCHAR_T_IS_UTF16
- #else
- #error Please add support for your compiler in build/build_config.h
- #endif
- #if defined(OS_ANDROID)
- // The compiler thinks std::string::const_iterator and "const char*" are
- // equivalent types.
- #define STD_STRING_ITERATOR_IS_CHAR_POINTER
- // The compiler thinks std::u16string::const_iterator and "char16*" are
- // equivalent types.
- #define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER
- #endif
- #endif // BUILD_BUILD_CONFIG_H_
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