| // 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 |
| |
| #ifndef BUILD_BUILD_CONFIG_H_ |
| #define BUILD_BUILD_CONFIG_H_ |
| |
| // 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 |
| // 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. |
| #if defined(__native_client_nonsfi__) |
| #define OS_NACL_NONSFI |
| #else |
| #define OS_NACL_SFI |
| #endif |
| #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 |
| #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 <unistd.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 |
| #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/+/master/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) |
| #define OS_POSIX 1 |
| #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 |
| #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 base::string16::const_iterator and "char16*" are |
| // equivalent types. |
| #define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER |
| #endif |
| |
| #endif // BUILD_BUILD_CONFIG_H_ |