// 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 adds defines about the platform we're currently building on. // // Operating System: // OS_AIX / OS_ANDROID / OS_ASMJS / OS_FREEBSD / OS_FUCHSIA / OS_IOS / // OS_LINUX / OS_MAC / OS_NACL (SFI or NONSFI) / OS_NETBSD / OS_OPENBSD / // OS_QNX / OS_SOLARIS / OS_WIN // Operating System family: // OS_APPLE: IOS or MAC // OS_BSD: FREEBSD or NETBSD or OPENBSD // OS_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 // // /!\ Note: OS_CHROMEOS is set by the build system, not this file // // Compiler: // COMPILER_MSVC / COMPILER_GCC // // Processor: // ARCH_CPU_ARM64 / ARCH_CPU_ARMEL / 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 // Processor family: // ARCH_CPU_ARM_FAMILY: ARMEL or ARM64 // 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 // Processor features: // ARCH_CPU_31_BITS / ARCH_CPU_32_BITS / ARCH_CPU_64_BITS // ARCH_CPU_BIG_ENDIAN / ARCH_CPU_LITTLE_ENDIAN
// A set of macros to use for platform detection. #ifdefined(__native_client__) // __native_client__ must be first, so that other OS_ defines are not set. #define OS_NACL 1 // OS_NACL comes in two sandboxing technology flavors, SFI or Non-SFI. // PNaCl toolchain defines __native_client_nonsfi__ macro in Non-SFI build // mode, while it does not in SFI build mode. #ifdefined(__native_client_nonsfi__) #define OS_NACL_NONSFI #else #define OS_NACL_SFI #endif #elifdefined(ANDROID) #define OS_ANDROID 1 #elifdefined(__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> #ifdefined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE #define OS_IOS 1 #else #define OS_MAC 1 #endif// defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE #elifdefined(__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 <unistd.h> #ifdefined(__GLIBC__) && !defined(__UCLIBC__) // We really are using glibc, not uClibc pretending to be glibc. #define LIBC_GLIBC 1 #endif #elifdefined(_WIN32) #define OS_WIN 1 #elifdefined(__Fuchsia__) #define OS_FUCHSIA 1 #elifdefined(__FreeBSD__) #define OS_FREEBSD 1 #elifdefined(__NetBSD__) #define OS_NETBSD 1 #elifdefined(__OpenBSD__) #define OS_OPENBSD 1 #elifdefined(__sun) #define OS_SOLARIS 1 #elifdefined(__QNXNTO__) #define OS_QNX 1 #elifdefined(_AIX) #define OS_AIX 1 #elifdefined(__asmjs__) || defined(__wasm__) #define OS_ASMJS 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
// For access to standard BSD features, use OS_BSD instead of a // more specific macro. #ifdefined(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. #ifdefined(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) #define OS_POSIX 1 #endif
// Compiler detection. Note: clang masquerades as GCC on POSIX and as MSVC on // Windows. #ifdefined(__GNUC__) #define COMPILER_GCC 1 #elifdefined(_MSC_VER) #define COMPILER_MSVC 1 #else #error Please add support for your compiler in build/build_config.h #endif
// Type detection for wchar_t. #ifdefined(OS_WIN) #define WCHAR_T_IS_UTF16 #elifdefined(OS_FUCHSIA) #define WCHAR_T_IS_UTF32 #elifdefined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \
(__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) #define WCHAR_T_IS_UTF32 #elifdefined(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
#ifdefined(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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