tor-browser

The Tor Browser
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build_config.h (11528B)

      1 // Copyright 2012 The Chromium Authors
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // This file doesn't belong to any GN target by design for faster build and
      6 // less developer overhead.
      7 
      8 // This file adds build flags about the OS we're currently building on. They are
      9 // defined directly in this file instead of via a `buildflag_header` target in a
     10 // GN file for faster build. They are defined using the corresponding OS defines
     11 // (e.g. OS_WIN) which are also defined in this file (except for OS_CHROMEOS,
     12 // which is set by the build system). These defines are deprecated and should
     13 // NOT be used directly. For example:
     14 //    Please Use: #if BUILDFLAG(IS_WIN)
     15 //    Deprecated: #if defined(OS_WIN)
     16 //
     17 //  Operating System:
     18 //    IS_AIX / IS_ANDROID / IS_ASMJS / IS_CHROMEOS / IS_FREEBSD / IS_FUCHSIA /
     19 //    IS_IOS / IS_IOS_MACCATALYST / IS_LINUX / IS_MAC / IS_NACL / IS_NETBSD /
     20 //    IS_OPENBSD / IS_QNX / IS_SOLARIS / IS_WIN
     21 //  Operating System family:
     22 //    IS_APPLE: IOS or MAC or IOS_MACCATALYST
     23 //    IS_BSD: FREEBSD or NETBSD or OPENBSD
     24 //    IS_POSIX: AIX or ANDROID or ASMJS or CHROMEOS or FREEBSD or IOS or LINUX
     25 //              or MAC or NACL or NETBSD or OPENBSD or QNX or SOLARIS
     26 
     27 // This file also adds defines specific to the platform, architecture etc.
     28 //
     29 //  Platform:
     30 //    IS_OZONE
     31 //
     32 //  Compiler:
     33 //    COMPILER_MSVC / COMPILER_GCC
     34 //
     35 //  Processor:
     36 //    ARCH_CPU_ARM64 / ARCH_CPU_ARMEL / ARCH_CPU_LOONGARCH32 /
     37 //    ARCH_CPU_LOONGARCH64 / ARCH_CPU_MIPS / ARCH_CPU_MIPS64 /
     38 //    ARCH_CPU_MIPS64EL / ARCH_CPU_MIPSEL / ARCH_CPU_PPC64 / ARCH_CPU_S390 /
     39 //    ARCH_CPU_S390X / ARCH_CPU_X86 / ARCH_CPU_X86_64 / ARCH_CPU_RISCV64
     40 //  Processor family:
     41 //    ARCH_CPU_ARM_FAMILY: ARMEL or ARM64
     42 //    ARCH_CPU_LOONGARCH_FAMILY: LOONGARCH32 or LOONGARCH64
     43 //    ARCH_CPU_MIPS_FAMILY: MIPS64EL or MIPSEL or MIPS64 or MIPS
     44 //    ARCH_CPU_PPC64_FAMILY: PPC64
     45 //    ARCH_CPU_S390_FAMILY: S390 or S390X
     46 //    ARCH_CPU_X86_FAMILY: X86 or X86_64
     47 //    ARCH_CPU_RISCV_FAMILY: Riscv64
     48 //  Processor features:
     49 //    ARCH_CPU_31_BITS / ARCH_CPU_32_BITS / ARCH_CPU_64_BITS
     50 //    ARCH_CPU_BIG_ENDIAN / ARCH_CPU_LITTLE_ENDIAN
     51 
     52 #ifndef BUILD_BUILD_CONFIG_H_
     53 #define BUILD_BUILD_CONFIG_H_
     54 
     55 #include "build/buildflag.h"  // IWYU pragma: export
     56 
     57 // A set of macros to use for platform detection.
     58 #if defined(__native_client__)
     59 // __native_client__ must be first, so that other OS_ defines are not set.
     60 #define OS_NACL 1
     61 #elif defined(ANDROID)
     62 #define OS_ANDROID 1
     63 #elif defined(__APPLE__)
     64 // Only include TargetConditionals after testing ANDROID as some Android builds
     65 // on the Mac have this header available and it's not needed unless the target
     66 // is really an Apple platform.
     67 #include <TargetConditionals.h>
     68 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
     69 #define OS_IOS 1
     70 // Catalyst is the technology that allows running iOS apps on macOS. These
     71 // builds are both OS_IOS and OS_IOS_MACCATALYST.
     72 #if defined(TARGET_OS_MACCATALYST) && TARGET_OS_MACCATALYST
     73 #define OS_IOS_MACCATALYST
     74 #endif  // defined(TARGET_OS_MACCATALYST) && TARGET_OS_MACCATALYST
     75 #else
     76 #define OS_MAC 1
     77 #endif  // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
     78 #elif defined(__linux__)
     79 #if !defined(OS_CHROMEOS)
     80 // Do not define OS_LINUX on Chrome OS build.
     81 // The OS_CHROMEOS macro is defined in GN.
     82 #define OS_LINUX 1
     83 #endif  // !defined(OS_CHROMEOS)
     84 // Include a system header to pull in features.h for glibc/uclibc macros.
     85 #include <assert.h>
     86 #if defined(__GLIBC__) && !defined(__UCLIBC__)
     87 // We really are using glibc, not uClibc pretending to be glibc.
     88 #define LIBC_GLIBC 1
     89 #endif
     90 #elif defined(_WIN32)
     91 #define OS_WIN 1
     92 #elif defined(__Fuchsia__)
     93 #define OS_FUCHSIA 1
     94 #elif defined(__FreeBSD__)
     95 #define OS_FREEBSD 1
     96 #elif defined(__NetBSD__)
     97 #define OS_NETBSD 1
     98 #elif defined(__OpenBSD__)
     99 #define OS_OPENBSD 1
    100 #elif defined(__sun)
    101 #define OS_SOLARIS 1
    102 #elif defined(__QNXNTO__)
    103 #define OS_QNX 1
    104 #elif defined(_AIX)
    105 #define OS_AIX 1
    106 #elif defined(__asmjs__) || defined(__wasm__)
    107 #define OS_ASMJS 1
    108 #elif defined(__MVS__)
    109 #define OS_ZOS 1
    110 #else
    111 #error Please add support for your platform in build/build_config.h
    112 #endif
    113 // NOTE: Adding a new port? Please follow
    114 // https://chromium.googlesource.com/chromium/src/+/main/docs/new_port_policy.md
    115 
    116 #if defined(OS_MAC) || defined(OS_IOS)
    117 #define OS_APPLE 1
    118 #endif
    119 
    120 // For access to standard BSD features, use OS_BSD instead of a
    121 // more specific macro.
    122 #if defined(OS_FREEBSD) || defined(OS_NETBSD) || defined(OS_OPENBSD)
    123 #define OS_BSD 1
    124 #endif
    125 
    126 // For access to standard POSIXish features, use OS_POSIX instead of a
    127 // more specific macro.
    128 #if defined(OS_AIX) || defined(OS_ANDROID) || defined(OS_ASMJS) ||  \
    129    defined(OS_FREEBSD) || defined(OS_IOS) || defined(OS_LINUX) ||  \
    130    defined(OS_CHROMEOS) || defined(OS_MAC) || defined(OS_NACL) ||  \
    131    defined(OS_NETBSD) || defined(OS_OPENBSD) || defined(OS_QNX) || \
    132    defined(OS_SOLARIS) || defined(OS_ZOS)
    133 #define OS_POSIX 1
    134 #endif
    135 
    136 // OS build flags
    137 #if defined(OS_AIX)
    138 #define BUILDFLAG_INTERNAL_IS_AIX() (1)
    139 #else
    140 #define BUILDFLAG_INTERNAL_IS_AIX() (0)
    141 #endif
    142 
    143 #if defined(OS_ANDROID)
    144 #define BUILDFLAG_INTERNAL_IS_ANDROID() (1)
    145 #else
    146 #define BUILDFLAG_INTERNAL_IS_ANDROID() (0)
    147 #endif
    148 
    149 #if defined(OS_APPLE)
    150 #define BUILDFLAG_INTERNAL_IS_APPLE() (1)
    151 #else
    152 #define BUILDFLAG_INTERNAL_IS_APPLE() (0)
    153 #endif
    154 
    155 #if defined(OS_ASMJS)
    156 #define BUILDFLAG_INTERNAL_IS_ASMJS() (1)
    157 #else
    158 #define BUILDFLAG_INTERNAL_IS_ASMJS() (0)
    159 #endif
    160 
    161 #if defined(OS_BSD)
    162 #define BUILDFLAG_INTERNAL_IS_BSD() (1)
    163 #else
    164 #define BUILDFLAG_INTERNAL_IS_BSD() (0)
    165 #endif
    166 
    167 #if defined(OS_CHROMEOS)
    168 #define BUILDFLAG_INTERNAL_IS_CHROMEOS() (1)
    169 #else
    170 #define BUILDFLAG_INTERNAL_IS_CHROMEOS() (0)
    171 #endif
    172 
    173 #if defined(OS_FREEBSD)
    174 #define BUILDFLAG_INTERNAL_IS_FREEBSD() (1)
    175 #else
    176 #define BUILDFLAG_INTERNAL_IS_FREEBSD() (0)
    177 #endif
    178 
    179 #if defined(OS_FUCHSIA)
    180 #define BUILDFLAG_INTERNAL_IS_FUCHSIA() (1)
    181 #else
    182 #define BUILDFLAG_INTERNAL_IS_FUCHSIA() (0)
    183 #endif
    184 
    185 #if defined(OS_IOS)
    186 #define BUILDFLAG_INTERNAL_IS_IOS() (1)
    187 #else
    188 #define BUILDFLAG_INTERNAL_IS_IOS() (0)
    189 #endif
    190 
    191 #if defined(OS_IOS_MACCATALYST)
    192 #define BUILDFLAG_INTERNAL_IS_IOS_MACCATALYST() (1)
    193 #else
    194 #define BUILDFLAG_INTERNAL_IS_IOS_MACCATALYST() (0)
    195 #endif
    196 
    197 #if defined(OS_LINUX)
    198 #define BUILDFLAG_INTERNAL_IS_LINUX() (1)
    199 #else
    200 #define BUILDFLAG_INTERNAL_IS_LINUX() (0)
    201 #endif
    202 
    203 #if defined(OS_MAC)
    204 #define BUILDFLAG_INTERNAL_IS_MAC() (1)
    205 #else
    206 #define BUILDFLAG_INTERNAL_IS_MAC() (0)
    207 #endif
    208 
    209 #if defined(OS_NACL)
    210 #define BUILDFLAG_INTERNAL_IS_NACL() (1)
    211 #else
    212 #define BUILDFLAG_INTERNAL_IS_NACL() (0)
    213 #endif
    214 
    215 #if defined(OS_NETBSD)
    216 #define BUILDFLAG_INTERNAL_IS_NETBSD() (1)
    217 #else
    218 #define BUILDFLAG_INTERNAL_IS_NETBSD() (0)
    219 #endif
    220 
    221 #if defined(OS_OPENBSD)
    222 #define BUILDFLAG_INTERNAL_IS_OPENBSD() (1)
    223 #else
    224 #define BUILDFLAG_INTERNAL_IS_OPENBSD() (0)
    225 #endif
    226 
    227 #if defined(OS_POSIX)
    228 #define BUILDFLAG_INTERNAL_IS_POSIX() (1)
    229 #else
    230 #define BUILDFLAG_INTERNAL_IS_POSIX() (0)
    231 #endif
    232 
    233 #if defined(OS_QNX)
    234 #define BUILDFLAG_INTERNAL_IS_QNX() (1)
    235 #else
    236 #define BUILDFLAG_INTERNAL_IS_QNX() (0)
    237 #endif
    238 
    239 #if defined(OS_SOLARIS)
    240 #define BUILDFLAG_INTERNAL_IS_SOLARIS() (1)
    241 #else
    242 #define BUILDFLAG_INTERNAL_IS_SOLARIS() (0)
    243 #endif
    244 
    245 #if defined(OS_WIN)
    246 #define BUILDFLAG_INTERNAL_IS_WIN() (1)
    247 #else
    248 #define BUILDFLAG_INTERNAL_IS_WIN() (0)
    249 #endif
    250 
    251 #if defined(USE_OZONE)
    252 #define BUILDFLAG_INTERNAL_IS_OZONE() (1)
    253 #else
    254 #define BUILDFLAG_INTERNAL_IS_OZONE() (0)
    255 #endif
    256 
    257 // Compiler detection. Note: clang masquerades as GCC on POSIX and as MSVC on
    258 // Windows.
    259 #if defined(__GNUC__)
    260 #define COMPILER_GCC 1
    261 #elif defined(_MSC_VER)
    262 #define COMPILER_MSVC 1
    263 #else
    264 #error Please add support for your compiler in build/build_config.h
    265 #endif
    266 
    267 // Processor architecture detection.  For more info on what's defined, see:
    268 //   http://msdn.microsoft.com/en-us/library/b0084kay.aspx
    269 //   http://www.agner.org/optimize/calling_conventions.pdf
    270 //   or with gcc, run: "echo | gcc -E -dM -"
    271 #if defined(_M_X64) || defined(__x86_64__)
    272 #define ARCH_CPU_X86_FAMILY 1
    273 #define ARCH_CPU_X86_64 1
    274 #define ARCH_CPU_64_BITS 1
    275 #define ARCH_CPU_LITTLE_ENDIAN 1
    276 #elif defined(_M_IX86) || defined(__i386__)
    277 #define ARCH_CPU_X86_FAMILY 1
    278 #define ARCH_CPU_X86 1
    279 #define ARCH_CPU_32_BITS 1
    280 #define ARCH_CPU_LITTLE_ENDIAN 1
    281 #elif defined(__s390x__)
    282 #define ARCH_CPU_S390_FAMILY 1
    283 #define ARCH_CPU_S390X 1
    284 #define ARCH_CPU_64_BITS 1
    285 #define ARCH_CPU_BIG_ENDIAN 1
    286 #elif defined(__s390__)
    287 #define ARCH_CPU_S390_FAMILY 1
    288 #define ARCH_CPU_S390 1
    289 #define ARCH_CPU_31_BITS 1
    290 #define ARCH_CPU_BIG_ENDIAN 1
    291 #elif (defined(__PPC64__) || defined(__PPC__)) && defined(__BIG_ENDIAN__)
    292 #define ARCH_CPU_PPC64_FAMILY 1
    293 #define ARCH_CPU_PPC64 1
    294 #define ARCH_CPU_64_BITS 1
    295 #define ARCH_CPU_BIG_ENDIAN 1
    296 #elif defined(__PPC64__)
    297 #define ARCH_CPU_PPC64_FAMILY 1
    298 #define ARCH_CPU_PPC64 1
    299 #define ARCH_CPU_64_BITS 1
    300 #define ARCH_CPU_LITTLE_ENDIAN 1
    301 #elif defined(__ARMEL__)
    302 #define ARCH_CPU_ARM_FAMILY 1
    303 #define ARCH_CPU_ARMEL 1
    304 #define ARCH_CPU_32_BITS 1
    305 #define ARCH_CPU_LITTLE_ENDIAN 1
    306 #elif defined(__aarch64__) || defined(_M_ARM64)
    307 #define ARCH_CPU_ARM_FAMILY 1
    308 #define ARCH_CPU_ARM64 1
    309 #define ARCH_CPU_64_BITS 1
    310 #define ARCH_CPU_LITTLE_ENDIAN 1
    311 #elif defined(__pnacl__) || defined(__asmjs__) || defined(__wasm__)
    312 #define ARCH_CPU_32_BITS 1
    313 #define ARCH_CPU_LITTLE_ENDIAN 1
    314 #elif defined(__MIPSEL__)
    315 #if defined(__LP64__)
    316 #define ARCH_CPU_MIPS_FAMILY 1
    317 #define ARCH_CPU_MIPS64EL 1
    318 #define ARCH_CPU_64_BITS 1
    319 #define ARCH_CPU_LITTLE_ENDIAN 1
    320 #else
    321 #define ARCH_CPU_MIPS_FAMILY 1
    322 #define ARCH_CPU_MIPSEL 1
    323 #define ARCH_CPU_32_BITS 1
    324 #define ARCH_CPU_LITTLE_ENDIAN 1
    325 #endif
    326 #elif defined(__MIPSEB__)
    327 #if defined(__LP64__)
    328 #define ARCH_CPU_MIPS_FAMILY 1
    329 #define ARCH_CPU_MIPS64 1
    330 #define ARCH_CPU_64_BITS 1
    331 #define ARCH_CPU_BIG_ENDIAN 1
    332 #else
    333 #define ARCH_CPU_MIPS_FAMILY 1
    334 #define ARCH_CPU_MIPS 1
    335 #define ARCH_CPU_32_BITS 1
    336 #define ARCH_CPU_BIG_ENDIAN 1
    337 #endif
    338 #elif defined(__loongarch__)
    339 #define ARCH_CPU_LOONGARCH_FAMILY 1
    340 #define ARCH_CPU_LITTLE_ENDIAN 1
    341 #if __loongarch_grlen == 64
    342 #define ARCH_CPU_LOONGARCH64 1
    343 #define ARCH_CPU_64_BITS 1
    344 #else
    345 #define ARCH_CPU_LOONGARCH32 1
    346 #define ARCH_CPU_32_BITS 1
    347 #endif
    348 #elif defined(__riscv) && (__riscv_xlen == 64)
    349 #define ARCH_CPU_RISCV_FAMILY 1
    350 #define ARCH_CPU_RISCV64 1
    351 #define ARCH_CPU_64_BITS 1
    352 #define ARCH_CPU_LITTLE_ENDIAN 1
    353 #else
    354 #error Please add support for your architecture in build/build_config.h
    355 #endif
    356 
    357 // Type detection for wchar_t.
    358 #if defined(OS_WIN)
    359 #define WCHAR_T_IS_UTF16
    360 #elif defined(OS_FUCHSIA)
    361 #define WCHAR_T_IS_UTF32
    362 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \
    363    (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff)
    364 #define WCHAR_T_IS_UTF32
    365 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \
    366    (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff)
    367 // On Posix, we'll detect short wchar_t, but projects aren't guaranteed to
    368 // compile in this mode (in particular, Chrome doesn't). This is intended for
    369 // other projects using base who manage their own dependencies and make sure
    370 // short wchar works for them.
    371 #define WCHAR_T_IS_UTF16
    372 #else
    373 #error Please add support for your compiler in build/build_config.h
    374 #endif
    375 
    376 #if defined(OS_ANDROID)
    377 // The compiler thinks std::string::const_iterator and "const char*" are
    378 // equivalent types.
    379 #define STD_STRING_ITERATOR_IS_CHAR_POINTER
    380 // The compiler thinks std::u16string::const_iterator and "char16*" are
    381 // equivalent types.
    382 #define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER
    383 #endif
    384 
    385 #endif  // BUILD_BUILD_CONFIG_H_