1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2012 Google Inc.  All rights reserved.
3 // https://developers.google.com/protocol-buffers/
4 //
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are
7 // met:
8 //
9 //     * Redistributions of source code must retain the above copyright
10 // notice, this list of conditions and the following disclaimer.
11 //     * Redistributions in binary form must reproduce the above
12 // copyright notice, this list of conditions and the following disclaimer
13 // in the documentation and/or other materials provided with the
14 // distribution.
15 //     * Neither the name of Google Inc. nor the names of its
16 // contributors may be used to endorse or promote products derived from
17 // this software without specific prior written permission.
18 //
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 
31 #ifndef GOOGLE_PROTOBUF_PLATFORM_MACROS_H_
32 #define GOOGLE_PROTOBUF_PLATFORM_MACROS_H_
33 
34 #define GOOGLE_PROTOBUF_PLATFORM_ERROR \
35 #error "Host platform was not detected as supported by protobuf"
36 
37 // Processor architecture detection.  For more info on what's defined, see:
38 //   http://msdn.microsoft.com/en-us/library/b0084kay.aspx
39 //   http://www.agner.org/optimize/calling_conventions.pdf
40 //   or with gcc, run: "echo | gcc -E -dM -"
41 #if defined(_M_X64) || defined(__x86_64__)
42 #define GOOGLE_PROTOBUF_ARCH_X64 1
43 #define GOOGLE_PROTOBUF_ARCH_64_BIT 1
44 #elif defined(_M_IX86) || defined(__i386__)
45 #define GOOGLE_PROTOBUF_ARCH_IA32 1
46 #define GOOGLE_PROTOBUF_ARCH_32_BIT 1
47 #elif defined(__QNX__)
48 #define GOOGLE_PROTOBUF_ARCH_ARM_QNX 1
49 #define GOOGLE_PROTOBUF_ARCH_32_BIT 1
50 #elif defined(_M_ARM) || defined(__ARMEL__)
51 #define GOOGLE_PROTOBUF_ARCH_ARM 1
52 #define GOOGLE_PROTOBUF_ARCH_32_BIT 1
53 #elif defined(_M_ARM64)
54 #define GOOGLE_PROTOBUF_ARCH_ARM 1
55 #define GOOGLE_PROTOBUF_ARCH_64_BIT 1
56 #elif defined(__aarch64__)
57 #define GOOGLE_PROTOBUF_ARCH_AARCH64 1
58 #define GOOGLE_PROTOBUF_ARCH_64_BIT 1
59 #elif defined(__mips__)
60 #if defined(__LP64__)
61 #define GOOGLE_PROTOBUF_ARCH_MIPS64 1
62 #define GOOGLE_PROTOBUF_ARCH_64_BIT 1
63 #else
64 #define GOOGLE_PROTOBUF_ARCH_MIPS 1
65 #define GOOGLE_PROTOBUF_ARCH_32_BIT 1
66 #endif
67 #elif defined(__pnacl__)
68 #define GOOGLE_PROTOBUF_ARCH_32_BIT 1
69 #elif defined(sparc)
70 #define GOOGLE_PROTOBUF_ARCH_SPARC 1
71 #if defined(__sparc_v9__) || defined(__sparcv9) || defined(__arch64__)
72 #define GOOGLE_PROTOBUF_ARCH_64_BIT 1
73 #else
74 #define GOOGLE_PROTOBUF_ARCH_32_BIT 1
75 #endif
76 #elif defined(_POWER) || defined(__powerpc64__) || defined(__PPC64__)
77 #define GOOGLE_PROTOBUF_ARCH_POWER 1
78 #define GOOGLE_PROTOBUF_ARCH_64_BIT 1
79 #elif defined(__PPC__)
80 #define GOOGLE_PROTOBUF_ARCH_PPC 1
81 #define GOOGLE_PROTOBUF_ARCH_32_BIT 1
82 #elif defined(__GNUC__)
83 # if (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4))
84 // We fallback to the generic Clang/GCC >= 4.7 implementation in atomicops.h
85 # elif defined(__clang__)
86 #  if !__has_extension(c_atomic)
87 GOOGLE_PROTOBUF_PLATFORM_ERROR
88 #  endif
89 // We fallback to the generic Clang/GCC >= 4.7 implementation in atomicops.h
90 # endif
91 # if __LP64__
92 #  define GOOGLE_PROTOBUF_ARCH_64_BIT 1
93 # else
94 #  define GOOGLE_PROTOBUF_ARCH_32_BIT 1
95 # endif
96 #else
97 GOOGLE_PROTOBUF_PLATFORM_ERROR
98 #endif
99 
100 #if defined(__APPLE__)
101 #define GOOGLE_PROTOBUF_OS_APPLE
102 #include <Availability.h>
103 #include <TargetConditionals.h>
104 #if TARGET_OS_IPHONE
105 #define GOOGLE_PROTOBUF_OS_IPHONE
106 #endif
107 #elif defined(__EMSCRIPTEN__)
108 #define GOOGLE_PROTOBUF_OS_EMSCRIPTEN
109 #elif defined(__native_client__)
110 #define GOOGLE_PROTOBUF_OS_NACL
111 #elif defined(sun)
112 #define GOOGLE_PROTOBUF_OS_SOLARIS
113 #elif defined(_AIX)
114 #define GOOGLE_PROTOBUF_OS_AIX
115 #elif defined(__ANDROID__)
116 #define GOOGLE_PROTOBUF_OS_ANDROID
117 #endif
118 
119 #undef GOOGLE_PROTOBUF_PLATFORM_ERROR
120 
121 #if defined(GOOGLE_PROTOBUF_OS_ANDROID) || defined(GOOGLE_PROTOBUF_OS_IPHONE) || defined(__OpenBSD__)
122 // Android ndk does not support the __thread keyword very well yet. Here
123 // we use pthread_key_create()/pthread_getspecific()/... methods for
124 // TLS support on android.
125 // iOS and OpenBSD also do not support the __thread keyword.
126 #define GOOGLE_PROTOBUF_NO_THREADLOCAL
127 #endif
128 
129 #if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED < 1070
130 // __thread keyword requires at least 10.7
131 #define GOOGLE_PROTOBUF_NO_THREADLOCAL
132 #endif
133 
134 #endif  // GOOGLE_PROTOBUF_PLATFORM_MACROS_H_
135