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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
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2 // Use of this source code is governed by a BSD-style license that can be |
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3 // found in the LICENSE file. |
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4 |
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5 // This file adds defines about the platform we're currently building on. |
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6 // Operating System: |
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7 // OS_WIN / OS_MACOSX / OS_LINUX / OS_POSIX (MACOSX or LINUX) |
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8 // Compiler: |
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9 // COMPILER_MSVC / COMPILER_GCC |
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10 // Processor: |
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11 // ARCH_CPU_X86 / ARCH_CPU_X86_64 / ARCH_CPU_X86_FAMILY (X86 or X86_64) |
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12 // ARCH_CPU_32_BITS / ARCH_CPU_64_BITS |
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13 |
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14 #ifndef BUILD_BUILD_CONFIG_H_ |
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15 #define BUILD_BUILD_CONFIG_H_ |
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16 |
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17 #if defined(__APPLE__) |
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18 #include <TargetConditionals.h> |
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19 #endif |
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20 |
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21 // A set of macros to use for platform detection. |
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22 #if defined(ANDROID) |
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23 #define OS_ANDROID 1 |
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24 #elif defined(__APPLE__) |
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25 #define OS_MACOSX 1 |
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26 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
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27 #define OS_IOS 1 |
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28 #endif // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
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29 #elif defined(__native_client__) |
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30 #define OS_NACL 1 |
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31 #elif defined(__linux__) |
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32 #define OS_LINUX 1 |
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33 // Use TOOLKIT_GTK on linux if TOOLKIT_VIEWS isn't defined. |
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34 #if !defined(TOOLKIT_VIEWS) && defined(USE_X11) |
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35 #define TOOLKIT_GTK |
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36 #endif |
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37 #if defined(__GLIBC__) && !defined(__UCLIBC__) |
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38 // we really are using glibc, not uClibc pretending to be glibc |
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39 #define LIBC_GLIBC |
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40 #endif |
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41 #elif defined(_WIN32) |
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42 #define OS_WIN 1 |
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43 #define TOOLKIT_VIEWS 1 |
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44 #elif defined(__FreeBSD__) |
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45 #define OS_FREEBSD 1 |
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46 #define TOOLKIT_GTK |
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47 #elif defined(__OpenBSD__) |
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48 #define OS_OPENBSD 1 |
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49 #define TOOLKIT_GTK |
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50 #elif defined(__sun) |
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51 #define OS_SOLARIS 1 |
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52 #define TOOLKIT_GTK |
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53 #else |
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54 #error Please add support for your platform in build/build_config.h |
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55 #endif |
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56 |
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57 #if defined(USE_OPENSSL) && defined(USE_NSS) |
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58 #error Cannot use both OpenSSL and NSS |
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59 #endif |
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60 |
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61 // For access to standard BSD features, use OS_BSD instead of a |
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62 // more specific macro. |
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63 #if defined(OS_FREEBSD) || defined(OS_OPENBSD) |
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64 #define OS_BSD 1 |
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65 #endif |
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66 |
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67 // For access to standard POSIXish features, use OS_POSIX instead of a |
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68 // more specific macro. |
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69 #if defined(OS_MACOSX) || defined(OS_LINUX) || defined(OS_FREEBSD) || \ |
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70 defined(OS_OPENBSD) || defined(OS_SOLARIS) || defined(OS_ANDROID) || \ |
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71 defined(OS_NACL) |
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72 #define OS_POSIX 1 |
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73 #endif |
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74 |
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75 // Use tcmalloc |
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76 #if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \ |
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77 !defined(NO_TCMALLOC) |
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78 #define USE_TCMALLOC 1 |
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79 #endif |
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80 |
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81 // Compiler detection. |
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82 #if defined(__GNUC__) |
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83 #define COMPILER_GCC 1 |
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84 #elif defined(_MSC_VER) |
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85 #define COMPILER_MSVC 1 |
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86 #else |
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87 #error Please add support for your compiler in build/build_config.h |
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88 #endif |
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89 |
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90 // Processor architecture detection. For more info on what's defined, see: |
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91 // http://msdn.microsoft.com/en-us/library/b0084kay.aspx |
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92 // http://www.agner.org/optimize/calling_conventions.pdf |
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93 // or with gcc, run: "echo | gcc -E -dM -" |
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94 #if defined(_M_X64) || defined(__x86_64__) |
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95 #define ARCH_CPU_X86_FAMILY 1 |
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96 #define ARCH_CPU_X86_64 1 |
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97 #define ARCH_CPU_64_BITS 1 |
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98 #define ARCH_CPU_LITTLE_ENDIAN 1 |
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99 #elif defined(_M_IX86) || defined(__i386__) |
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100 #define ARCH_CPU_X86_FAMILY 1 |
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101 #define ARCH_CPU_X86 1 |
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102 #define ARCH_CPU_32_BITS 1 |
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103 #define ARCH_CPU_LITTLE_ENDIAN 1 |
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104 #elif defined(__ARMEL__) |
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105 #define ARCH_CPU_ARM_FAMILY 1 |
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106 #define ARCH_CPU_ARMEL 1 |
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107 #define ARCH_CPU_32_BITS 1 |
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108 #define ARCH_CPU_LITTLE_ENDIAN 1 |
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109 #elif defined(__pnacl__) |
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110 #define ARCH_CPU_32_BITS 1 |
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111 #elif defined(__MIPSEL__) |
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112 #define ARCH_CPU_MIPS_FAMILY 1 |
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113 #define ARCH_CPU_MIPSEL 1 |
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114 #define ARCH_CPU_32_BITS 1 |
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115 #define ARCH_CPU_LITTLE_ENDIAN 1 |
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116 #else |
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117 #error Please add support for your architecture in build/build_config.h |
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118 #endif |
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119 |
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120 // Type detection for wchar_t. |
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121 #if defined(OS_WIN) |
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122 #define WCHAR_T_IS_UTF16 |
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123 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ |
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124 defined(__WCHAR_MAX__) && \ |
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125 (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) |
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126 #define WCHAR_T_IS_UTF32 |
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127 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ |
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128 defined(__WCHAR_MAX__) && \ |
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129 (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff) |
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130 // On Posix, we'll detect short wchar_t, but projects aren't guaranteed to |
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131 // compile in this mode (in particular, Chrome doesn't). This is intended for |
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132 // other projects using base who manage their own dependencies and make sure |
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133 // short wchar works for them. |
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134 #define WCHAR_T_IS_UTF16 |
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135 #else |
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136 #error Please add support for your compiler in build/build_config.h |
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137 #endif |
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138 |
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139 #if defined(__ARMEL__) && !defined(OS_IOS) |
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140 #define WCHAR_T_IS_UNSIGNED 1 |
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141 #elif defined(__MIPSEL__) |
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142 #define WCHAR_T_IS_UNSIGNED 0 |
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143 #endif |
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144 |
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145 #if defined(OS_ANDROID) |
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146 // The compiler thinks std::string::const_iterator and "const char*" are |
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147 // equivalent types. |
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148 #define STD_STRING_ITERATOR_IS_CHAR_POINTER |
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149 // The compiler thinks base::string16::const_iterator and "char16*" are |
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150 // equivalent types. |
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151 #define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER |
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152 #endif |
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153 |
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154 #endif // BUILD_BUILD_CONFIG_H_ |