1 //===--------------------------- cxxabi.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 10 #ifndef __CXXABI_H 11 #define __CXXABI_H 12 13 /* 14 * This header provides the interface to the C++ ABI as defined at: 15 * http://www.codesourcery.com/cxx-abi/ 16 */ 17 18 #include <stddef.h> 19 #include <stdint.h> 20 21 #include <__cxxabi_config.h> 22 23 #define _LIBCPPABI_VERSION 1002 24 #define LIBCXXABI_NORETURN __attribute__((noreturn)) 25 26 #ifdef __cplusplus 27 28 namespace std { 29 class type_info; // forward declaration 30 } 31 32 33 // runtime routines use C calling conventions, but are in __cxxabiv1 namespace 34 namespace __cxxabiv1 { 35 extern "C" { 36 37 // 2.4.2 Allocating the Exception Object 38 extern void * __cxa_allocate_exception(size_t thrown_size) throw(); 39 extern void __cxa_free_exception(void * thrown_exception) throw(); 40 41 // 2.4.3 Throwing the Exception Object 42 extern LIBCXXABI_NORETURN void __cxa_throw(void * thrown_exception, 43 std::type_info * tinfo, void (*dest)(void *)); 44 45 // 2.5.3 Exception Handlers 46 extern void * __cxa_get_exception_ptr(void * exceptionObject) throw(); 47 extern void * __cxa_begin_catch(void * exceptionObject) throw(); 48 extern void __cxa_end_catch(); 49 #if LIBCXXABI_ARM_EHABI 50 extern bool __cxa_begin_cleanup(void * exceptionObject) throw(); 51 extern void __cxa_end_cleanup(); 52 #endif 53 extern std::type_info * __cxa_current_exception_type(); 54 55 // 2.5.4 Rethrowing Exceptions 56 extern LIBCXXABI_NORETURN void __cxa_rethrow(); 57 58 59 60 // 2.6 Auxiliary Runtime APIs 61 extern LIBCXXABI_NORETURN void __cxa_bad_cast(void); 62 extern LIBCXXABI_NORETURN void __cxa_bad_typeid(void); 63 extern LIBCXXABI_NORETURN void __cxa_throw_bad_array_new_length(void); 64 65 66 67 // 3.2.6 Pure Virtual Function API 68 extern LIBCXXABI_NORETURN void __cxa_pure_virtual(void); 69 70 // 3.2.7 Deleted Virtual Function API 71 extern LIBCXXABI_NORETURN void __cxa_deleted_virtual(void); 72 73 // 3.3.2 One-time Construction API 74 #ifdef __arm__ 75 extern int __cxa_guard_acquire(uint32_t*); 76 extern void __cxa_guard_release(uint32_t*); 77 extern void __cxa_guard_abort(uint32_t*); 78 #else 79 extern int __cxa_guard_acquire(uint64_t*); 80 extern void __cxa_guard_release(uint64_t*); 81 extern void __cxa_guard_abort(uint64_t*); 82 #endif 83 84 // 3.3.3 Array Construction and Destruction API 85 extern void* __cxa_vec_new(size_t element_count, 86 size_t element_size, 87 size_t padding_size, 88 void (*constructor)(void*), 89 void (*destructor)(void*)); 90 91 extern void* __cxa_vec_new2(size_t element_count, 92 size_t element_size, 93 size_t padding_size, 94 void (*constructor)(void*), 95 void (*destructor)(void*), 96 void* (*alloc)(size_t), 97 void (*dealloc)(void*)); 98 99 extern void* __cxa_vec_new3(size_t element_count, 100 size_t element_size, 101 size_t padding_size, 102 void (*constructor)(void*), 103 void (*destructor)(void*), 104 void* (*alloc)(size_t), 105 void (*dealloc)(void*, size_t)); 106 107 extern void __cxa_vec_ctor(void* array_address, 108 size_t element_count, 109 size_t element_size, 110 void (*constructor)(void*), 111 void (*destructor)(void*)); 112 113 extern void __cxa_vec_dtor(void* array_address, 114 size_t element_count, 115 size_t element_size, 116 void (*destructor)(void*)); 117 118 extern void __cxa_vec_cleanup(void* array_address, 119 size_t element_count, 120 size_t element_size, 121 void (*destructor)(void*)); 122 123 extern void __cxa_vec_delete(void* array_address, 124 size_t element_size, 125 size_t padding_size, 126 void (*destructor)(void*)); 127 128 extern void __cxa_vec_delete2(void* array_address, 129 size_t element_size, 130 size_t padding_size, 131 void (*destructor)(void*), 132 void (*dealloc)(void*)); 133 134 extern void __cxa_vec_delete3(void* __array_address, 135 size_t element_size, 136 size_t padding_size, 137 void (*destructor)(void*), 138 void (*dealloc)(void*, size_t)); 139 140 extern void __cxa_vec_cctor(void* dest_array, 141 void* src_array, 142 size_t element_count, 143 size_t element_size, 144 void (*constructor)(void*, void*), 145 void (*destructor)(void*)); 146 147 // 3.3.5.3 Runtime API 148 extern int __cxa_atexit(void (*f)(void*), void* p, void* d); 149 extern int __cxa_finalize(void*); 150 151 // 3.4 Demangler API 152 extern char* __cxa_demangle(const char* mangled_name, 153 char* output_buffer, 154 size_t* length, 155 int* status); 156 157 // Apple additions to support C++ 0x exception_ptr class 158 // These are primitives to wrap a smart pointer around an exception object 159 extern void * __cxa_current_primary_exception() throw(); 160 extern void __cxa_rethrow_primary_exception(void* primary_exception); 161 extern void __cxa_increment_exception_refcount(void* primary_exception) throw(); 162 extern void __cxa_decrement_exception_refcount(void* primary_exception) throw(); 163 164 // Apple extension to support std::uncaught_exception() 165 extern bool __cxa_uncaught_exception () throw(); 166 extern unsigned int __cxa_uncaught_exceptions() throw(); 167 168 #ifdef __linux__ 169 // Linux TLS support. Not yet an official part of the Itanium ABI. 170 // https://sourceware.org/glibc/wiki/Destructor%20support%20for%20thread_local%20variables 171 extern int __cxa_thread_atexit(void (*)(void *), void *, void *) throw(); 172 #endif 173 174 } // extern "C" 175 } // namespace __cxxabiv1 176 177 namespace abi = __cxxabiv1; 178 179 #endif // __cplusplus 180 181 #endif // __CXXABI_H 182
