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#if defined(__aarch64__)
50#define GOOGLE_PROTOBUF_ARCH_64_BIT 1
51#else
52#define GOOGLE_PROTOBUF_ARCH_32_BIT 1
53#endif
54#elif defined(_M_ARM) || defined(__ARMEL__)
55#define GOOGLE_PROTOBUF_ARCH_ARM 1
56#define GOOGLE_PROTOBUF_ARCH_32_BIT 1
57#elif defined(_M_ARM64)
58#define GOOGLE_PROTOBUF_ARCH_ARM 1
59#define GOOGLE_PROTOBUF_ARCH_64_BIT 1
60#elif defined(__aarch64__)
61#define GOOGLE_PROTOBUF_ARCH_AARCH64 1
62#define GOOGLE_PROTOBUF_ARCH_64_BIT 1
63#elif defined(__mips__)
64#if defined(__LP64__)
65#define GOOGLE_PROTOBUF_ARCH_MIPS64 1
66#define GOOGLE_PROTOBUF_ARCH_64_BIT 1
67#else
68#define GOOGLE_PROTOBUF_ARCH_MIPS 1
69#define GOOGLE_PROTOBUF_ARCH_32_BIT 1
70#endif
71#elif defined(__pnacl__)
72#define GOOGLE_PROTOBUF_ARCH_32_BIT 1
73#elif defined(sparc)
74#define GOOGLE_PROTOBUF_ARCH_SPARC 1
75#if defined(__sparc_v9__) || defined(__sparcv9) || defined(__arch64__)
76#define GOOGLE_PROTOBUF_ARCH_64_BIT 1
77#else
78#define GOOGLE_PROTOBUF_ARCH_32_BIT 1
79#endif
80#elif defined(_POWER) || defined(__powerpc64__) || defined(__PPC64__)
81#define GOOGLE_PROTOBUF_ARCH_POWER 1
82#define GOOGLE_PROTOBUF_ARCH_64_BIT 1
83#elif defined(__PPC__)
84#define GOOGLE_PROTOBUF_ARCH_PPC 1
85#define GOOGLE_PROTOBUF_ARCH_32_BIT 1
86#elif defined(__GNUC__)
87# if (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4))
88// We fallback to the generic Clang/GCC >= 4.7 implementation in atomicops.h
89# elif defined(__clang__)
90# if !__has_extension(c_atomic)
91GOOGLE_PROTOBUF_PLATFORM_ERROR
92# endif
93// We fallback to the generic Clang/GCC >= 4.7 implementation in atomicops.h
94# endif
95# if __LP64__
96# define GOOGLE_PROTOBUF_ARCH_64_BIT 1
97# else
98# define GOOGLE_PROTOBUF_ARCH_32_BIT 1
99# endif
100#else
101GOOGLE_PROTOBUF_PLATFORM_ERROR
102#endif
103
104#if defined(__APPLE__)
105#define GOOGLE_PROTOBUF_OS_APPLE
106#include <Availability.h>
107#include <TargetConditionals.h>
108#if TARGET_OS_IPHONE
109#define GOOGLE_PROTOBUF_OS_IPHONE
110#endif
111#elif defined(__EMSCRIPTEN__)
112#define GOOGLE_PROTOBUF_OS_EMSCRIPTEN
113#elif defined(__native_client__)
114#define GOOGLE_PROTOBUF_OS_NACL
115#elif defined(sun)
116#define GOOGLE_PROTOBUF_OS_SOLARIS
117#elif defined(_AIX)
118#define GOOGLE_PROTOBUF_OS_AIX
119#elif defined(__ANDROID__)
120#define GOOGLE_PROTOBUF_OS_ANDROID
121#endif
122
123#undef GOOGLE_PROTOBUF_PLATFORM_ERROR
124
125#if defined(GOOGLE_PROTOBUF_OS_ANDROID) || defined(GOOGLE_PROTOBUF_OS_IPHONE) || defined(__OpenBSD__)
126// Android ndk does not support the __thread keyword very well yet. Here
127// we use pthread_key_create()/pthread_getspecific()/... methods for
128// TLS support on android.
129// iOS and OpenBSD also do not support the __thread keyword.
130#define GOOGLE_PROTOBUF_NO_THREADLOCAL
131#endif
132
133#if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED < 1070
134// __thread keyword requires at least 10.7
135#define GOOGLE_PROTOBUF_NO_THREADLOCAL
136#endif
137
138#endif // GOOGLE_PROTOBUF_PLATFORM_MACROS_H_
139