1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
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 adds defines about the platform we're currently building on. |
6 | // Operating System: |
7 | // OS_WIN / OS_MACOSX / OS_LINUX / OS_POSIX (MACOSX or LINUX) / |
8 | // OS_NACL (NACL_SFI or NACL_NONSFI) / OS_NACL_SFI / OS_NACL_NONSFI |
9 | // Compiler: |
10 | // COMPILER_MSVC / COMPILER_GCC |
11 | // Processor: |
12 | // ARCH_CPU_X86 / ARCH_CPU_X86_64 / ARCH_CPU_X86_FAMILY (X86 or X86_64) |
13 | // ARCH_CPU_32_BITS / ARCH_CPU_64_BITS |
14 | |
15 | #ifndef BUTIL_BUILD_CONFIG_H_ |
16 | #define BUTIL_BUILD_CONFIG_H_ |
17 | |
18 | // A set of macros to use for platform detection. |
19 | #if defined(__native_client__) |
20 | // __native_client__ must be first, so that other OS_ defines are not set. |
21 | #define OS_NACL 1 |
22 | // OS_NACL comes in two sandboxing technology flavors, SFI or Non-SFI. |
23 | // PNaCl toolchain defines __native_client_nonsfi__ macro in Non-SFI build |
24 | // mode, while it does not in SFI build mode. |
25 | #if defined(__native_client_nonsfi__) |
26 | #define OS_NACL_NONSFI |
27 | #else |
28 | #define OS_NACL_SFI |
29 | #endif |
30 | #elif defined(ANDROID) |
31 | #define OS_ANDROID 1 |
32 | #elif defined(__APPLE__) |
33 | // only include TargetConditions after testing ANDROID as some android builds |
34 | // on mac don't have this header available and it's not needed unless the target |
35 | // is really mac/ios. |
36 | #include <TargetConditionals.h> |
37 | #define OS_MACOSX 1 |
38 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
39 | #define OS_IOS 1 |
40 | #endif // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
41 | #elif defined(__linux__) |
42 | #define OS_LINUX 1 |
43 | // include a system header to pull in features.h for glibc/uclibc macros. |
44 | #include <unistd.h> |
45 | #if defined(__GLIBC__) && !defined(__UCLIBC__) |
46 | // we really are using glibc, not uClibc pretending to be glibc |
47 | #define LIBC_GLIBC 1 |
48 | #endif |
49 | #elif defined(_WIN32) |
50 | #define OS_WIN 1 |
51 | #define TOOLKIT_VIEWS 1 |
52 | #elif defined(__FreeBSD__) |
53 | #define OS_FREEBSD 1 |
54 | #elif defined(__OpenBSD__) |
55 | #define OS_OPENBSD 1 |
56 | #elif defined(__sun) |
57 | #define OS_SOLARIS 1 |
58 | #elif defined(__QNXNTO__) |
59 | #define OS_QNX 1 |
60 | #else |
61 | #error Please add support for your platform in butil/build_config.h |
62 | #endif |
63 | |
64 | #if defined(USE_OPENSSL_CERTS) && defined(USE_NSS_CERTS) |
65 | #error Cannot use both OpenSSL and NSS for certificates |
66 | #endif |
67 | |
68 | // For access to standard BSD features, use OS_BSD instead of a |
69 | // more specific macro. |
70 | #if defined(OS_FREEBSD) || defined(OS_OPENBSD) |
71 | #define OS_BSD 1 |
72 | #endif |
73 | |
74 | // For access to standard POSIXish features, use OS_POSIX instead of a |
75 | // more specific macro. |
76 | #if defined(OS_MACOSX) || defined(OS_LINUX) || defined(OS_FREEBSD) || \ |
77 | defined(OS_OPENBSD) || defined(OS_SOLARIS) || defined(OS_ANDROID) || \ |
78 | defined(OS_NACL) || defined(OS_QNX) |
79 | #define OS_POSIX 1 |
80 | #endif |
81 | |
82 | // Use tcmalloc |
83 | #if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \ |
84 | !defined(NO_TCMALLOC) |
85 | #define USE_TCMALLOC 1 |
86 | #endif |
87 | |
88 | // Compiler detection. |
89 | #if defined(__GNUC__) |
90 | #define COMPILER_GCC 1 |
91 | #elif defined(_MSC_VER) |
92 | #define COMPILER_MSVC 1 |
93 | #else |
94 | #error Please add support for your compiler in butil/build_config.h |
95 | #endif |
96 | |
97 | // Processor architecture detection. For more info on what's defined, see: |
98 | // http://msdn.microsoft.com/en-us/library/b0084kay.aspx |
99 | // http://www.agner.org/optimize/calling_conventions.pdf |
100 | // or with gcc, run: "echo | gcc -E -dM -" |
101 | #if defined(_M_X64) || defined(__x86_64__) |
102 | #define ARCH_CPU_X86_FAMILY 1 |
103 | #define ARCH_CPU_X86_64 1 |
104 | #define ARCH_CPU_64_BITS 1 |
105 | #define ARCH_CPU_LITTLE_ENDIAN 1 |
106 | #elif defined(_M_IX86) || defined(__i386__) |
107 | #define ARCH_CPU_X86_FAMILY 1 |
108 | #define ARCH_CPU_X86 1 |
109 | #define ARCH_CPU_32_BITS 1 |
110 | #define ARCH_CPU_LITTLE_ENDIAN 1 |
111 | #elif defined(__ARMEL__) |
112 | #define ARCH_CPU_ARM_FAMILY 1 |
113 | #define ARCH_CPU_ARMEL 1 |
114 | #define ARCH_CPU_32_BITS 1 |
115 | #define ARCH_CPU_LITTLE_ENDIAN 1 |
116 | #elif defined(__aarch64__) |
117 | #define ARCH_CPU_ARM_FAMILY 1 |
118 | #define ARCH_CPU_ARM64 1 |
119 | #define ARCH_CPU_64_BITS 1 |
120 | #define ARCH_CPU_LITTLE_ENDIAN 1 |
121 | #elif defined(__pnacl__) |
122 | #define ARCH_CPU_32_BITS 1 |
123 | #define ARCH_CPU_LITTLE_ENDIAN 1 |
124 | #elif defined(__MIPSEL__) |
125 | #if defined(__LP64__) |
126 | #define ARCH_CPU_MIPS64_FAMILY 1 |
127 | #define ARCH_CPU_MIPS64EL 1 |
128 | #define ARCH_CPU_64_BITS 1 |
129 | #define ARCH_CPU_LITTLE_ENDIAN 1 |
130 | #else |
131 | #define ARCH_CPU_MIPS_FAMILY 1 |
132 | #define ARCH_CPU_MIPSEL 1 |
133 | #define ARCH_CPU_32_BITS 1 |
134 | #define ARCH_CPU_LITTLE_ENDIAN 1 |
135 | #endif |
136 | #else |
137 | #error Please add support for your architecture in butil/build_config.h |
138 | #endif |
139 | |
140 | // Type detection for wchar_t. |
141 | #if defined(OS_WIN) |
142 | #define WCHAR_T_IS_UTF16 |
143 | #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ |
144 | defined(__WCHAR_MAX__) && \ |
145 | (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) |
146 | #define WCHAR_T_IS_UTF32 |
147 | #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ |
148 | defined(__WCHAR_MAX__) && \ |
149 | (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff) |
150 | // On Posix, we'll detect short wchar_t, but projects aren't guaranteed to |
151 | // compile in this mode (in particular, Chrome doesn't). This is intended for |
152 | // other projects using base who manage their own dependencies and make sure |
153 | // short wchar works for them. |
154 | #define WCHAR_T_IS_UTF16 |
155 | #else |
156 | #error Please add support for your compiler in butil/build_config.h |
157 | #endif |
158 | |
159 | #if defined(OS_ANDROID) |
160 | // The compiler thinks std::string::const_iterator and "const char*" are |
161 | // equivalent types. |
162 | #define STD_STRING_ITERATOR_IS_CHAR_POINTER |
163 | // The compiler thinks butil::string16::const_iterator and "char16*" are |
164 | // equivalent types. |
165 | #define BUTIL_STRING16_ITERATOR_IS_CHAR16_POINTER |
166 | #endif |
167 | |
168 | #if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L |
169 | #define BUTIL_CXX11_ENABLED 1 |
170 | #endif |
171 | |
172 | #if !defined(BUTIL_CXX11_ENABLED) |
173 | #define nullptr NULL |
174 | #endif |
175 | |
176 | #define HAVE_DLADDR |
177 | |
178 | #endif // BUTIL_BUILD_CONFIG_H_ |
179 | |