// Copyright 2012 The Chromium Authors // 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_IOS_VISION / IS_IOS_WATCH / IS_LINUX / // IS_MAC / IS_NACL / IS_NETBSD / IS_OPENBSD / IS_QNX / IS_SOLARIS / IS_WIN // Operating System family: // IS_APPLE: MAC or IOS or IOS_MACCATALYST or IOS_VISION or IOS_WATCH // IS_IOS: IOS or IOS_MACCATALYST or IOS_VISION or IOS_WATCH // IS_BSD: FREEBSD or NETBSD or OPENBSD // IS_POSIX: AIX or ANDROID or ASMJS or CHROMEOS or FREEBSD or IOS // or IOS_MACCATALYST or IOS_VISION or IOS_WATCH 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. // // Platform: // IS_OZONE // // Compiler: // COMPILER_MSVC / COMPILER_GCC // // Processor: // ARCH_CPU_ARM64 / ARCH_CPU_ARMEL / ARCH_CPU_LOONGARCH32 / // ARCH_CPU_LOONGARCH64 / 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_LOONGARCH_FAMILY: LOONGARCH32 or LOONGARCH64 // 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 // Clangd does not detect BUILDFLAG_INTERNAL_* indirect usage, so mark the // header as "always_keep" to avoid "unused include" warning. // // IWYU pragma: always_keep // 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 … #elif defined(ANDROID) #define OS_ANDROID … #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 … // 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 #if defined(TARGET_OS_VISION) && TARGET_OS_VISION #define OS_IOS_VISION … #endif // defined(TARGET_OS_VISION) && TARGET_OS_VISION #if defined(TARGET_OS_WATCH) && TARGET_OS_WATCH #define OS_IOS_WATCH … #endif // defined(TARGET_OS_WATCH) && TARGET_OS_WATCH #else #define OS_MAC … #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 … #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 … #endif #elif defined(_WIN32) #define OS_WIN … #elif defined(__Fuchsia__) #define OS_FUCHSIA … #elif defined(__FreeBSD__) #define OS_FREEBSD … #elif defined(__NetBSD__) #define OS_NETBSD … #elif defined(__OpenBSD__) #define OS_OPENBSD … #elif defined(__sun) #define OS_SOLARIS … #elif defined(__QNXNTO__) #define OS_QNX … #elif defined(_AIX) #define OS_AIX … #elif defined(__asmjs__) || defined(__wasm__) #define OS_ASMJS … #elif defined(__MVS__) #define OS_ZOS … #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 … #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 … #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 … #endif // OS build flags #if defined(OS_AIX) #define BUILDFLAG_INTERNAL_IS_AIX … #else #define BUILDFLAG_INTERNAL_IS_AIX() … #endif #if defined(OS_ANDROID) #define BUILDFLAG_INTERNAL_IS_ANDROID … #else #define BUILDFLAG_INTERNAL_IS_ANDROID() … #endif #if defined(OS_APPLE) #define BUILDFLAG_INTERNAL_IS_APPLE … #else #define BUILDFLAG_INTERNAL_IS_APPLE() … #endif #if defined(OS_ASMJS) #define BUILDFLAG_INTERNAL_IS_ASMJS … #else #define BUILDFLAG_INTERNAL_IS_ASMJS() … #endif #if defined(OS_BSD) #define BUILDFLAG_INTERNAL_IS_BSD … #else #define BUILDFLAG_INTERNAL_IS_BSD() … #endif #if defined(OS_CHROMEOS) #define BUILDFLAG_INTERNAL_IS_CHROMEOS … #else #define BUILDFLAG_INTERNAL_IS_CHROMEOS() … #endif #if defined(OS_FREEBSD) #define BUILDFLAG_INTERNAL_IS_FREEBSD … #else #define BUILDFLAG_INTERNAL_IS_FREEBSD() … #endif #if defined(OS_FUCHSIA) #define BUILDFLAG_INTERNAL_IS_FUCHSIA … #else #define BUILDFLAG_INTERNAL_IS_FUCHSIA() … #endif #if defined(OS_IOS) #define BUILDFLAG_INTERNAL_IS_IOS … #else #define BUILDFLAG_INTERNAL_IS_IOS() … #endif #if defined(OS_IOS_MACCATALYST) #define BUILDFLAG_INTERNAL_IS_IOS_MACCATALYST … #else #define BUILDFLAG_INTERNAL_IS_IOS_MACCATALYST() … #endif #if defined(OS_IOS_VISION) #define BUILDFLAG_INTERNAL_IS_IOS_VISION … #else #define BUILDFLAG_INTERNAL_IS_IOS_VISION() … #endif #if defined(OS_IOS_WATCH) #define BUILDFLAG_INTERNAL_IS_IOS_WATCH … #else #define BUILDFLAG_INTERNAL_IS_IOS_WATCH() … #endif #if defined(OS_LINUX) #define BUILDFLAG_INTERNAL_IS_LINUX() … #else #define BUILDFLAG_INTERNAL_IS_LINUX … #endif #if defined(OS_MAC) #define BUILDFLAG_INTERNAL_IS_MAC … #else #define BUILDFLAG_INTERNAL_IS_MAC() … #endif #if defined(OS_NACL) #define BUILDFLAG_INTERNAL_IS_NACL … #else #define BUILDFLAG_INTERNAL_IS_NACL() … #endif #if defined(OS_NETBSD) #define BUILDFLAG_INTERNAL_IS_NETBSD … #else #define BUILDFLAG_INTERNAL_IS_NETBSD() … #endif #if defined(OS_OPENBSD) #define BUILDFLAG_INTERNAL_IS_OPENBSD … #else #define BUILDFLAG_INTERNAL_IS_OPENBSD() … #endif #if defined(OS_POSIX) #define BUILDFLAG_INTERNAL_IS_POSIX() … #else #define BUILDFLAG_INTERNAL_IS_POSIX … #endif #if defined(OS_QNX) #define BUILDFLAG_INTERNAL_IS_QNX … #else #define BUILDFLAG_INTERNAL_IS_QNX() … #endif #if defined(OS_SOLARIS) #define BUILDFLAG_INTERNAL_IS_SOLARIS … #else #define BUILDFLAG_INTERNAL_IS_SOLARIS() … #endif #if defined(OS_WIN) #define BUILDFLAG_INTERNAL_IS_WIN … #else #define BUILDFLAG_INTERNAL_IS_WIN() … #endif #if defined(USE_OZONE) #define BUILDFLAG_INTERNAL_IS_OZONE() … #else #define BUILDFLAG_INTERNAL_IS_OZONE … #endif // Compiler detection. Note: clang masquerades as GCC on POSIX and as MSVC on // Windows. #if defined(__GNUC__) #define COMPILER_GCC … #elif defined(_MSC_VER) #define COMPILER_MSVC … #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 … #define ARCH_CPU_X86_64 … #define ARCH_CPU_64_BITS … #define ARCH_CPU_LITTLE_ENDIAN … #elif defined(_M_IX86) || defined(__i386__) #define ARCH_CPU_X86_FAMILY … #define ARCH_CPU_X86 … #define ARCH_CPU_32_BITS … #define ARCH_CPU_LITTLE_ENDIAN … #elif defined(__s390x__) #define ARCH_CPU_S390_FAMILY … #define ARCH_CPU_S390X … #define ARCH_CPU_64_BITS … #define ARCH_CPU_BIG_ENDIAN … #elif defined(__s390__) #define ARCH_CPU_S390_FAMILY … #define ARCH_CPU_S390 … #define ARCH_CPU_31_BITS … #define ARCH_CPU_BIG_ENDIAN … #elif (defined(__PPC64__) || defined(__PPC__)) && defined(__BIG_ENDIAN__) #define ARCH_CPU_PPC64_FAMILY … #define ARCH_CPU_PPC64 … #define ARCH_CPU_64_BITS … #define ARCH_CPU_BIG_ENDIAN … #elif defined(__PPC64__) #define ARCH_CPU_PPC64_FAMILY … #define ARCH_CPU_PPC64 … #define ARCH_CPU_64_BITS … #define ARCH_CPU_LITTLE_ENDIAN … #elif defined(__ARMEL__) #define ARCH_CPU_ARM_FAMILY … #define ARCH_CPU_ARMEL … #define ARCH_CPU_32_BITS … #define ARCH_CPU_LITTLE_ENDIAN … #elif defined(__aarch64__) || defined(_M_ARM64) #define ARCH_CPU_ARM_FAMILY … #define ARCH_CPU_ARM64 … #define ARCH_CPU_64_BITS … #define ARCH_CPU_LITTLE_ENDIAN … #elif defined(__pnacl__) || defined(__asmjs__) || defined(__wasm__) #define ARCH_CPU_32_BITS … #define ARCH_CPU_LITTLE_ENDIAN … #elif defined(__MIPSEL__) #if defined(__LP64__) #define ARCH_CPU_MIPS_FAMILY … #define ARCH_CPU_MIPS64EL … #define ARCH_CPU_64_BITS … #define ARCH_CPU_LITTLE_ENDIAN … #else #define ARCH_CPU_MIPS_FAMILY … #define ARCH_CPU_MIPSEL … #define ARCH_CPU_32_BITS … #define ARCH_CPU_LITTLE_ENDIAN … #endif #elif defined(__MIPSEB__) #if defined(__LP64__) #define ARCH_CPU_MIPS_FAMILY … #define ARCH_CPU_MIPS64 … #define ARCH_CPU_64_BITS … #define ARCH_CPU_BIG_ENDIAN … #else #define ARCH_CPU_MIPS_FAMILY … #define ARCH_CPU_MIPS … #define ARCH_CPU_32_BITS … #define ARCH_CPU_BIG_ENDIAN … #endif #elif defined(__loongarch__) #define ARCH_CPU_LOONGARCH_FAMILY … #define ARCH_CPU_LITTLE_ENDIAN … #if __loongarch_grlen == 64 #define ARCH_CPU_LOONGARCH64 … #define ARCH_CPU_64_BITS … #else #define ARCH_CPU_LOONGARCH32 … #define ARCH_CPU_32_BITS … #endif #elif defined(__riscv) && (__riscv_xlen == 64) #define ARCH_CPU_RISCV_FAMILY … #define ARCH_CPU_RISCV64 … #define ARCH_CPU_64_BITS … #define ARCH_CPU_LITTLE_ENDIAN … #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_16_BIT #elif defined(OS_FUCHSIA) #define WCHAR_T_IS_32_BIT #elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \ (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) #define WCHAR_T_IS_32_BIT #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_16_BIT #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 // Architecture-specific feature detection. #if !defined(CPU_ARM_NEON) #if defined(__arm__) #if !defined(__ARMEB__) && !defined(__ARM_EABI__) && !defined(__EABI__) && \ !defined(__VFP_FP__) && !defined(_WIN32_WCE) && !defined(ANDROID) #error Chromium does not support middle endian architecture #endif #if defined(__ARM_NEON__) #define CPU_ARM_NEON … #endif #endif // defined(__arm__) #endif // !defined(CPU_ARM_NEON) #if !defined(HAVE_MIPS_MSA_INTRINSICS) #if defined(__mips_msa) && defined(__mips_isa_rev) && (__mips_isa_rev >= 5) #define HAVE_MIPS_MSA_INTRINSICS … #endif #endif #endif // BUILD_BUILD_CONFIG_H_
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