cxxabi.h
7.05 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
//===--------------------------- cxxabi.h ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef __CXXABI_H
#define __CXXABI_H
/*
* This header provides the interface to the C++ ABI as defined at:
* https://itanium-cxx-abi.github.io/cxx-abi/
*/
#include <stddef.h>
#include <stdint.h>
#include <__cxxabi_config.h>
#define _LIBCPPABI_VERSION 1002
#define _LIBCXXABI_NORETURN __attribute__((noreturn))
#define _LIBCXXABI_ALWAYS_COLD __attribute__((cold))
#ifdef __cplusplus
namespace std {
#if defined(_WIN32)
class _LIBCXXABI_TYPE_VIS type_info; // forward declaration
#else
class type_info; // forward declaration
#endif
}
// runtime routines use C calling conventions, but are in __cxxabiv1 namespace
namespace __cxxabiv1 {
extern "C" {
// 2.4.2 Allocating the Exception Object
extern _LIBCXXABI_FUNC_VIS void *
__cxa_allocate_exception(size_t thrown_size) throw();
extern _LIBCXXABI_FUNC_VIS void
__cxa_free_exception(void *thrown_exception) throw();
// 2.4.3 Throwing the Exception Object
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_NORETURN void
__cxa_throw(void *thrown_exception, std::type_info *tinfo,
void (*dest)(void *));
// 2.5.3 Exception Handlers
extern _LIBCXXABI_FUNC_VIS void *
__cxa_get_exception_ptr(void *exceptionObject) throw();
extern _LIBCXXABI_FUNC_VIS void *
__cxa_begin_catch(void *exceptionObject) throw();
extern _LIBCXXABI_FUNC_VIS void __cxa_end_catch();
#if defined(_LIBCXXABI_ARM_EHABI)
extern _LIBCXXABI_FUNC_VIS bool
__cxa_begin_cleanup(void *exceptionObject) throw();
extern _LIBCXXABI_FUNC_VIS void __cxa_end_cleanup();
#endif
extern _LIBCXXABI_FUNC_VIS std::type_info *__cxa_current_exception_type();
// 2.5.4 Rethrowing Exceptions
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_NORETURN void __cxa_rethrow();
// 2.6 Auxiliary Runtime APIs
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_NORETURN void __cxa_bad_cast(void);
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_NORETURN void __cxa_bad_typeid(void);
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_NORETURN void
__cxa_throw_bad_array_new_length(void);
// 3.2.6 Pure Virtual Function API
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_NORETURN void __cxa_pure_virtual(void);
// 3.2.7 Deleted Virtual Function API
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_NORETURN void __cxa_deleted_virtual(void);
// 3.3.2 One-time Construction API
#if defined(_LIBCXXABI_GUARD_ABI_ARM)
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_ALWAYS_COLD int __cxa_guard_acquire(uint32_t *);
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_ALWAYS_COLD void __cxa_guard_release(uint32_t *);
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_ALWAYS_COLD void __cxa_guard_abort(uint32_t *);
#else
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_ALWAYS_COLD int __cxa_guard_acquire(uint64_t *);
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_ALWAYS_COLD void __cxa_guard_release(uint64_t *);
extern _LIBCXXABI_FUNC_VIS _LIBCXXABI_ALWAYS_COLD void __cxa_guard_abort(uint64_t *);
#endif
// 3.3.3 Array Construction and Destruction API
extern _LIBCXXABI_FUNC_VIS void *
__cxa_vec_new(size_t element_count, size_t element_size, size_t padding_size,
void (*constructor)(void *), void (*destructor)(void *));
extern _LIBCXXABI_FUNC_VIS void *
__cxa_vec_new2(size_t element_count, size_t element_size, size_t padding_size,
void (*constructor)(void *), void (*destructor)(void *),
void *(*alloc)(size_t), void (*dealloc)(void *));
extern _LIBCXXABI_FUNC_VIS void *
__cxa_vec_new3(size_t element_count, size_t element_size, size_t padding_size,
void (*constructor)(void *), void (*destructor)(void *),
void *(*alloc)(size_t), void (*dealloc)(void *, size_t));
extern _LIBCXXABI_FUNC_VIS void
__cxa_vec_ctor(void *array_address, size_t element_count, size_t element_size,
void (*constructor)(void *), void (*destructor)(void *));
extern _LIBCXXABI_FUNC_VIS void __cxa_vec_dtor(void *array_address,
size_t element_count,
size_t element_size,
void (*destructor)(void *));
extern _LIBCXXABI_FUNC_VIS void __cxa_vec_cleanup(void *array_address,
size_t element_count,
size_t element_size,
void (*destructor)(void *));
extern _LIBCXXABI_FUNC_VIS void __cxa_vec_delete(void *array_address,
size_t element_size,
size_t padding_size,
void (*destructor)(void *));
extern _LIBCXXABI_FUNC_VIS void
__cxa_vec_delete2(void *array_address, size_t element_size, size_t padding_size,
void (*destructor)(void *), void (*dealloc)(void *));
extern _LIBCXXABI_FUNC_VIS void
__cxa_vec_delete3(void *__array_address, size_t element_size,
size_t padding_size, void (*destructor)(void *),
void (*dealloc)(void *, size_t));
extern _LIBCXXABI_FUNC_VIS void
__cxa_vec_cctor(void *dest_array, void *src_array, size_t element_count,
size_t element_size, void (*constructor)(void *, void *),
void (*destructor)(void *));
// 3.3.5.3 Runtime API
// These functions are part of the C++ ABI, but they are not defined in libc++abi:
// int __cxa_atexit(void (*)(void *), void *, void *);
// void __cxa_finalize(void *);
// 3.4 Demangler API
extern _LIBCXXABI_FUNC_VIS char *__cxa_demangle(const char *mangled_name,
char *output_buffer,
size_t *length, int *status);
// Apple additions to support C++ 0x exception_ptr class
// These are primitives to wrap a smart pointer around an exception object
extern _LIBCXXABI_FUNC_VIS void *__cxa_current_primary_exception() throw();
extern _LIBCXXABI_FUNC_VIS void
__cxa_rethrow_primary_exception(void *primary_exception);
extern _LIBCXXABI_FUNC_VIS void
__cxa_increment_exception_refcount(void *primary_exception) throw();
extern _LIBCXXABI_FUNC_VIS void
__cxa_decrement_exception_refcount(void *primary_exception) throw();
// Apple extension to support std::uncaught_exception()
extern _LIBCXXABI_FUNC_VIS bool __cxa_uncaught_exception() throw();
extern _LIBCXXABI_FUNC_VIS unsigned int __cxa_uncaught_exceptions() throw();
#if defined(__linux__) || defined(__Fuchsia__)
// Linux and Fuchsia TLS support. Not yet an official part of the Itanium ABI.
// https://sourceware.org/glibc/wiki/Destructor%20support%20for%20thread_local%20variables
extern _LIBCXXABI_FUNC_VIS int __cxa_thread_atexit(void (*)(void *), void *,
void *) throw();
#endif
} // extern "C"
} // namespace __cxxabiv1
namespace abi = __cxxabiv1;
#endif // __cplusplus
#endif // __CXXABI_H