1 // Copyright 2015, ARM Limited 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are met: 6 // 7 // * Redistributions of source code must retain the above copyright notice, 8 // this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above copyright notice, 10 // this list of conditions and the following disclaimer in the documentation 11 // and/or other materials provided with the distribution. 12 // * Neither the name of ARM Limited nor the names of its contributors may be 13 // used to endorse or promote products derived from this software without 14 // specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND 17 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 20 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 23 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27 #ifndef VIXL_GLOBALS_H 28 #define VIXL_GLOBALS_H 29 30 // Get standard C99 macros for integer types. 31 #ifndef __STDC_CONSTANT_MACROS 32 #define __STDC_CONSTANT_MACROS 33 #endif 34 35 #ifndef __STDC_LIMIT_MACROS 36 #define __STDC_LIMIT_MACROS 37 #endif 38 39 #ifndef __STDC_FORMAT_MACROS 40 #define __STDC_FORMAT_MACROS 41 #endif 42 43 #ifdef __ANDROID__ 44 #ifndef LOG_TAG 45 #define LOG_TAG "VIXL" 46 #endif 47 #include <cutils/log.h> 48 #endif 49 50 #include <stdint.h> 51 #include <inttypes.h> 52 53 #include <assert.h> 54 #include <stdarg.h> 55 #include <stdio.h> 56 #include <stdint.h> 57 #include <stdlib.h> 58 #include <stddef.h> 59 #include "vixl/platform.h" 60 61 62 typedef uint8_t byte; 63 64 // Type for half-precision (16 bit) floating point numbers. 65 typedef uint16_t float16; 66 67 const int KBytes = 1024; 68 const int MBytes = 1024 * KBytes; 69 70 #ifdef __ANDROID__ 71 #define VIXL_ABORT() ALOGE("in %s, line %i", __FILE__, __LINE__); abort() 72 #else 73 #define VIXL_ABORT() printf("in %s, line %i", __FILE__, __LINE__); abort() 74 #endif 75 76 #ifdef VIXL_DEBUG 77 #define VIXL_ASSERT(condition) assert(condition) 78 #define VIXL_CHECK(condition) VIXL_ASSERT(condition) 79 #ifdef __ANDROID__ 80 #define VIXL_UNIMPLEMENTED() ALOGD("UNIMPLEMENTED\t"); VIXL_ABORT() 81 #define VIXL_UNREACHABLE() ALOGD("UNREACHABLE\t"); VIXL_ABORT() 82 #else 83 #define VIXL_UNIMPLEMENTED() printf("UNIMPLEMENTED\t"); VIXL_ABORT() 84 #define VIXL_UNREACHABLE() printf("UNREACHABLE\t"); VIXL_ABORT() 85 #endif 86 #else 87 #define VIXL_ASSERT(condition) ((void) 0) 88 #define VIXL_CHECK(condition) assert(condition) 89 #define VIXL_UNIMPLEMENTED() ((void) 0) 90 #define VIXL_UNREACHABLE() ((void) 0) 91 #endif 92 // This is not as powerful as template based assertions, but it is simple. 93 // It assumes that the descriptions are unique. If this starts being a problem, 94 // we can switch to a different implemention. 95 #define VIXL_CONCAT(a, b) a##b 96 #define VIXL_STATIC_ASSERT_LINE(line, condition) \ 97 typedef char VIXL_CONCAT(STATIC_ASSERT_LINE_, line)[(condition) ? 1 : -1] \ 98 __attribute__((unused)) 99 #define VIXL_STATIC_ASSERT(condition) VIXL_STATIC_ASSERT_LINE(__LINE__, condition) //NOLINT 100 101 template <typename T> inline void USE(T) {} 102 template <typename T> inline void USE(T, T) {} 103 template <typename T> inline void USE(T, T, T) {} 104 template <typename T> inline void USE(T, T, T, T) {} 105 106 #ifdef __ANDROID__ 107 #define VIXL_ALIGNMENT_EXCEPTION() ALOGD("ALIGNMENT EXCEPTION\t"); VIXL_ABORT() //NOLINT 108 #else 109 #define VIXL_ALIGNMENT_EXCEPTION() printf("ALIGNMENT EXCEPTION\t"); VIXL_ABORT() //NOLINT 110 #endif 111 112 // The clang::fallthrough attribute is used along with the Wimplicit-fallthrough 113 // argument to annotate intentional fall-through between switch labels. 114 // For more information please refer to: 115 // http://clang.llvm.org/docs/AttributeReference.html#fallthrough-clang-fallthrough 116 #ifndef __has_warning 117 #define __has_warning(x) 0 118 #endif 119 120 // Note: This option is only available for Clang. And will only be enabled for 121 // C++11(201103L). 122 #if __has_warning("-Wimplicit-fallthrough") && __cplusplus >= 201103L 123 #define VIXL_FALLTHROUGH() [[clang::fallthrough]] //NOLINT 124 #else 125 #define VIXL_FALLTHROUGH() do {} while (0) 126 #endif 127 128 #endif // VIXL_GLOBALS_H 129
