1 /* 2 * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 // This file contains platform-specific typedefs and defines. 12 // Much of it is derived from Chromium's build/build_config.h. 13 14 #ifndef RTC_BASE_SYSTEM_ARCH_H_ 15 #define RTC_BASE_SYSTEM_ARCH_H_ 16 17 // Processor architecture detection. For more info on what's defined, see: 18 // https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros 19 // https://www.agner.org/optimize/calling_conventions.pdf 20 // https://sourceforge.net/p/predef/wiki/Architectures/ 21 // or with gcc, run: "echo | gcc -E -dM -" 22 #if defined(_M_X64) || defined(__x86_64__) 23 #define WEBRTC_ARCH_X86_FAMILY 24 #define WEBRTC_ARCH_X86_64 25 #define WEBRTC_ARCH_64_BITS 26 #define WEBRTC_ARCH_LITTLE_ENDIAN 27 #elif defined(_M_ARM64) || defined(__aarch64__) 28 #define WEBRTC_ARCH_ARM_FAMILY 29 #define WEBRTC_ARCH_64_BITS 30 #define WEBRTC_ARCH_LITTLE_ENDIAN 31 #elif defined(_M_IX86) || defined(__i386__) 32 #define WEBRTC_ARCH_X86_FAMILY 33 #define WEBRTC_ARCH_X86 34 #define WEBRTC_ARCH_32_BITS 35 #define WEBRTC_ARCH_LITTLE_ENDIAN 36 #elif defined(_M_ARM) || defined(__ARMEL__) 37 #define WEBRTC_ARCH_ARM_FAMILY 38 #define WEBRTC_ARCH_32_BITS 39 #define WEBRTC_ARCH_LITTLE_ENDIAN 40 #elif defined(__MIPSEL__) || defined(__MIPSEB__) 41 #define WEBRTC_ARCH_MIPS_FAMILY 42 #if defined(__LP64__) 43 #define WEBRTC_ARCH_64_BITS 44 #else 45 #define WEBRTC_ARCH_32_BITS 46 #endif 47 #if defined(__MIPSEL__) 48 #define WEBRTC_ARCH_LITTLE_ENDIAN 49 #else 50 #define WEBRTC_ARCH_BIG_ENDIAN 51 #endif 52 #elif defined(__PPC__) 53 #if defined(__PPC64__) 54 #define WEBRTC_ARCH_64_BITS 55 #else 56 #define WEBRTC_ARCH_32_BITS 57 #endif 58 #if defined(__LITTLE_ENDIAN__) 59 #define WEBRTC_ARCH_LITTLE_ENDIAN 60 #else 61 #define WEBRTC_ARCH_BIG_ENDIAN 62 #endif 63 #elif defined(__sparc) || defined(__sparc__) 64 #if __SIZEOF_LONG__ == 8 65 #define WEBRTC_ARCH_64_BITS 66 #else 67 #define WEBRTC_ARCH_32_BITS 68 #endif 69 #define WEBRTC_ARCH_BIG_ENDIAN 70 #elif defined(__riscv) && __riscv_xlen == 64 71 #define WEBRTC_ARCH_64_BITS 72 #define WEBRTC_ARCH_LITTLE_ENDIAN 73 #elif defined(__riscv) && __riscv_xlen == 32 74 #define WEBRTC_ARCH_32_BITS 75 #define WEBRTC_ARCH_LITTLE_ENDIAN 76 #elif defined(__loongarch32) 77 #define WEBRTC_ARCH_LOONG_FAMILY 78 #define WEBRTC_ARCH_LOONG32 79 #define WEBRTC_ARCH_32_BITS 80 #define WEBRTC_ARCH_LITTLE_ENDIAN 81 #elif defined(__loongarch64) 82 #define WEBRTC_ARCH_LOONG_FAMILY 83 #define WEBRTC_ARCH_LOONG64 84 #define WEBRTC_ARCH_64_BITS 85 #define WEBRTC_ARCH_LITTLE_ENDIAN 86 #elif defined(__pnacl__) 87 #define WEBRTC_ARCH_32_BITS 88 #define WEBRTC_ARCH_LITTLE_ENDIAN 89 #elif defined(__EMSCRIPTEN__) 90 #define WEBRTC_ARCH_32_BITS 91 #define WEBRTC_ARCH_LITTLE_ENDIAN 92 #else 93 #error Please add support for your architecture in rtc_base/system/arch.h 94 #endif 95 96 #if !(defined(WEBRTC_ARCH_LITTLE_ENDIAN) ^ defined(WEBRTC_ARCH_BIG_ENDIAN)) 97 #error Define either WEBRTC_ARCH_LITTLE_ENDIAN or WEBRTC_ARCH_BIG_ENDIAN 98 #endif 99 100 #endif // RTC_BASE_SYSTEM_ARCH_H_ 101