1 //===----------------------------- config.h -------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 // 9 // Defines macros used within libuwind project. 10 // 11 //===----------------------------------------------------------------------===// 12 13 14 #ifndef LIBUNWIND_CONFIG_H 15 #define LIBUNWIND_CONFIG_H 16 17 #ifndef NDEBUG 18 #include <stdio.h> // for logging 19 #endif 20 21 #include <assert.h> 22 #include <stdio.h> 23 #include <stdlib.h> 24 25 // Define static_assert() unless already defined by compiler. 26 #ifndef __has_feature 27 #define __has_feature(__x) 0 28 #endif 29 #if !(__has_feature(cxx_static_assert)) && !defined(static_assert) 30 // TODO(ajwong): This caused some compile failures on gcc. 31 // #define static_assert(__b, __m) \ 32 // extern int compile_time_assert_failed[ ( __b ) ? 1 : -1 ] \ 33 // __attribute__( ( unused ) ); 34 #endif 35 36 // Platform specific configuration defines. 37 #if __APPLE__ 38 #include <Availability.h> 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 void __assert_rtn(const char *, const char *, int, const char *) 43 __attribute__((noreturn)); 44 #ifdef __cplusplus 45 } 46 #endif 47 48 #define _LIBUNWIND_BUILD_ZERO_COST_APIS (__i386__ || __x86_64__ || __arm64__) 49 #define _LIBUNWIND_BUILD_SJLJ_APIS (__arm__) 50 #define _LIBUNWIND_SUPPORT_FRAME_APIS (__i386__ || __x86_64__) 51 #define _LIBUNWIND_EXPORT __attribute__((visibility("default"))) 52 #define _LIBUNWIND_HIDDEN __attribute__((visibility("hidden"))) 53 #define _LIBUNWIND_LOG(msg, ...) fprintf(stderr, "libuwind: " msg, __VA_ARGS__) 54 #define _LIBUNWIND_ABORT(msg) __assert_rtn(__func__, __FILE__, __LINE__, msg) 55 56 #if FOR_DYLD 57 #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 1 58 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 0 59 #define _LIBUNWIND_SUPPORT_DWARF_INDEX 0 60 #define _LIBUNWIND_IS_BAREMETAL 0 61 #else 62 #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 1 63 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 64 #define _LIBUNWIND_SUPPORT_DWARF_INDEX 0 65 #define _LIBUNWIND_IS_BAREMETAL 0 66 #endif 67 68 #else 69 static inline void assert_rtn(const char* func, const char* file, int line, const char* msg) __attribute__ ((noreturn)); 70 static inline void assert_rtn(const char* func, const char* file, int line, const char* msg) { 71 fprintf(stderr, "libunwind: %s %s:%d - %s\n", func, file, line, msg); 72 assert(false); 73 abort(); 74 } 75 #define _LIBUNWIND_BUILD_ZERO_COST_APIS (__i386__ || __x86_64__ || __arm64__ || __arm__ || __mips__) 76 #define _LIBUNWIND_BUILD_SJLJ_APIS 0 77 #define _LIBUNWIND_SUPPORT_FRAME_APIS (__i386__ || __x86_64__) 78 #define _LIBUNWIND_EXPORT __attribute__((visibility("default"))) 79 #define _LIBUNWIND_HIDDEN __attribute__((visibility("hidden"))) 80 #define _LIBUNWIND_LOG(msg, ...) fprintf(stderr, "libuwind: " msg, __VA_ARGS__) 81 #define _LIBUNWIND_ABORT(msg) assert_rtn(__func__, __FILE__, __LINE__, msg) 82 83 #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 0 84 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND defined(__mips__) 85 #define _LIBUNWIND_SUPPORT_DWARF_INDEX 0 86 #define _LIBUNWIND_IS_BAREMETAL 0 87 #endif 88 89 90 // Macros that define away in non-Debug builds 91 #ifdef NDEBUG 92 #define _LIBUNWIND_DEBUG_LOG(msg, ...) 93 #define _LIBUNWIND_TRACE_API(msg, ...) 94 #define _LIBUNWIND_TRACING_UNWINDING 0 95 #define _LIBUNWIND_TRACE_UNWINDING(msg, ...) 96 #define _LIBUNWIND_LOG_NON_ZERO(x) x 97 #else 98 #ifdef __cplusplus 99 extern "C" { 100 #endif 101 extern bool logAPIs(); 102 extern bool logUnwinding(); 103 #ifdef __cplusplus 104 } 105 #endif 106 #define _LIBUNWIND_DEBUG_LOG(msg, ...) _LIBUNWIND_LOG(msg, __VA_ARGS__) 107 #define _LIBUNWIND_LOG_NON_ZERO(x) \ 108 do { \ 109 int _err = x; \ 110 if ( _err != 0 ) \ 111 _LIBUNWIND_LOG("" #x "=%d in %s", _err, __FUNCTION__); \ 112 } while (0) 113 #define _LIBUNWIND_TRACE_API(msg, ...) \ 114 do { \ 115 if ( logAPIs() ) _LIBUNWIND_LOG(msg, __VA_ARGS__); \ 116 } while(0) 117 #define _LIBUNWIND_TRACE_UNWINDING(msg, ...) \ 118 do { \ 119 if ( logUnwinding() ) _LIBUNWIND_LOG(msg, __VA_ARGS__); \ 120 } while(0) 121 #define _LIBUNWIND_TRACING_UNWINDING logUnwinding() 122 #endif 123 124 125 #endif // LIBUNWIND_CONFIG_H 126
