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25 | |
26 | #ifndef __CLANG_UNWIND_H |
27 | #define __CLANG_UNWIND_H |
28 | |
29 | #if defined(__APPLE__) && __has_include_next(<unwind.h>) |
30 | |
31 | |
32 | |
33 | # ifndef _GNU_SOURCE |
34 | # define _SHOULD_UNDEFINE_GNU_SOURCE |
35 | # define _GNU_SOURCE |
36 | # endif |
37 | |
38 | |
39 | |
40 | |
41 | |
42 | |
43 | # ifdef HIDE_EXPORTS |
44 | # include_next <unwind.h> |
45 | # else |
46 | # pragma GCC visibility push(default) |
47 | # include_next <unwind.h> |
48 | # pragma GCC visibility pop |
49 | # endif |
50 | # ifdef _SHOULD_UNDEFINE_GNU_SOURCE |
51 | # undef _GNU_SOURCE |
52 | # undef _SHOULD_UNDEFINE_GNU_SOURCE |
53 | # endif |
54 | #else |
55 | |
56 | #include <stdint.h> |
57 | |
58 | #ifdef __cplusplus |
59 | extern "C" { |
60 | #endif |
61 | |
62 | |
63 | |
64 | |
65 | #ifndef HIDE_EXPORTS |
66 | #pragma GCC visibility push(default) |
67 | #endif |
68 | |
69 | typedef uintptr_t _Unwind_Word __attribute__((__mode__(__unwind_word__))); |
70 | typedef intptr_t _Unwind_Sword __attribute__((__mode__(__unwind_word__))); |
71 | typedef uintptr_t _Unwind_Ptr; |
72 | typedef uintptr_t _Unwind_Internal_Ptr; |
73 | typedef uint64_t _Unwind_Exception_Class; |
74 | |
75 | typedef intptr_t _sleb128_t; |
76 | typedef uintptr_t _uleb128_t; |
77 | |
78 | struct _Unwind_Context; |
79 | #if defined(__arm__) && !(defined(__USING_SJLJ_EXCEPTIONS__) || defined(__ARM_DWARF_EH__)) |
80 | struct _Unwind_Control_Block; |
81 | typedef struct _Unwind_Control_Block _Unwind_Exception; |
82 | #else |
83 | struct _Unwind_Exception; |
84 | typedef struct _Unwind_Exception _Unwind_Exception; |
85 | #endif |
86 | typedef enum { |
87 | _URC_NO_REASON = 0, |
88 | #if defined(__arm__) && !defined(__USING_SJLJ_EXCEPTIONS__) && \ |
89 | !defined(__ARM_DWARF_EH__) |
90 | _URC_OK = 0, |
91 | #endif |
92 | _URC_FOREIGN_EXCEPTION_CAUGHT = 1, |
93 | |
94 | _URC_FATAL_PHASE2_ERROR = 2, |
95 | _URC_FATAL_PHASE1_ERROR = 3, |
96 | _URC_NORMAL_STOP = 4, |
97 | |
98 | _URC_END_OF_STACK = 5, |
99 | _URC_HANDLER_FOUND = 6, |
100 | _URC_INSTALL_CONTEXT = 7, |
101 | _URC_CONTINUE_UNWIND = 8, |
102 | #if defined(__arm__) && !defined(__USING_SJLJ_EXCEPTIONS__) && \ |
103 | !defined(__ARM_DWARF_EH__) |
104 | _URC_FAILURE = 9 |
105 | #endif |
106 | } _Unwind_Reason_Code; |
107 | |
108 | typedef enum { |
109 | _UA_SEARCH_PHASE = 1, |
110 | _UA_CLEANUP_PHASE = 2, |
111 | |
112 | _UA_HANDLER_FRAME = 4, |
113 | _UA_FORCE_UNWIND = 8, |
114 | _UA_END_OF_STACK = 16 |
115 | } _Unwind_Action; |
116 | |
117 | typedef void (*_Unwind_Exception_Cleanup_Fn)(_Unwind_Reason_Code, |
118 | _Unwind_Exception *); |
119 | |
120 | #if defined(__arm__) && !(defined(__USING_SJLJ_EXCEPTIONS__) || defined(__ARM_DWARF_EH__)) |
121 | typedef struct _Unwind_Control_Block _Unwind_Control_Block; |
122 | typedef uint32_t _Unwind_EHT_Header; |
123 | |
124 | struct _Unwind_Control_Block { |
125 | uint64_t exception_class; |
126 | void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block *); |
127 | |
128 | struct { |
129 | uint32_t reserved1; |
130 | uint32_t reserved2; |
131 | uint32_t reserved3; |
132 | uint32_t reserved4; |
133 | uint32_t reserved5; |
134 | } unwinder_cache; |
135 | |
136 | struct { |
137 | uint32_t sp; |
138 | uint32_t bitpattern[5]; |
139 | } barrier_cache; |
140 | |
141 | struct { |
142 | uint32_t bitpattern[4]; |
143 | } cleanup_cache; |
144 | |
145 | struct { |
146 | uint32_t fnstart; |
147 | _Unwind_EHT_Header *ehtp; |
148 | uint32_t additional; |
149 | uint32_t reserved1; |
150 | } pr_cache; |
151 | long long int : 0; |
152 | } __attribute__((__aligned__(8))); |
153 | #else |
154 | struct _Unwind_Exception { |
155 | _Unwind_Exception_Class exception_class; |
156 | _Unwind_Exception_Cleanup_Fn exception_cleanup; |
157 | #if !defined (__USING_SJLJ_EXCEPTIONS__) && defined (__SEH__) |
158 | _Unwind_Word private_[6]; |
159 | #else |
160 | _Unwind_Word private_1; |
161 | _Unwind_Word private_2; |
162 | #endif |
163 | |
164 | |
165 | |
166 | } __attribute__((__aligned__)); |
167 | #endif |
168 | |
169 | typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn)(int, _Unwind_Action, |
170 | _Unwind_Exception_Class, |
171 | _Unwind_Exception *, |
172 | struct _Unwind_Context *, |
173 | void *); |
174 | |
175 | typedef _Unwind_Reason_Code (*_Unwind_Personality_Fn)(int, _Unwind_Action, |
176 | _Unwind_Exception_Class, |
177 | _Unwind_Exception *, |
178 | struct _Unwind_Context *); |
179 | typedef _Unwind_Personality_Fn __personality_routine; |
180 | |
181 | typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context *, |
182 | void *); |
183 | |
184 | #if defined(__arm__) && !(defined(__USING_SJLJ_EXCEPTIONS__) || defined(__ARM_DWARF_EH__)) |
185 | typedef enum { |
186 | _UVRSC_CORE = 0, |
187 | _UVRSC_VFP = 1, |
188 | _UVRSC_WMMXD = 3, |
189 | _UVRSC_WMMXC = 4 |
190 | } _Unwind_VRS_RegClass; |
191 | |
192 | typedef enum { |
193 | _UVRSD_UINT32 = 0, |
194 | _UVRSD_VFPX = 1, |
195 | _UVRSD_UINT64 = 3, |
196 | _UVRSD_FLOAT = 4, |
197 | _UVRSD_DOUBLE = 5 |
198 | } _Unwind_VRS_DataRepresentation; |
199 | |
200 | typedef enum { |
201 | _UVRSR_OK = 0, |
202 | _UVRSR_NOT_IMPLEMENTED = 1, |
203 | _UVRSR_FAILED = 2 |
204 | } _Unwind_VRS_Result; |
205 | |
206 | typedef uint32_t _Unwind_State; |
207 | #define _US_VIRTUAL_UNWIND_FRAME ((_Unwind_State)0) |
208 | #define _US_UNWIND_FRAME_STARTING ((_Unwind_State)1) |
209 | #define _US_UNWIND_FRAME_RESUME ((_Unwind_State)2) |
210 | #define _US_ACTION_MASK ((_Unwind_State)3) |
211 | #define _US_FORCE_UNWIND ((_Unwind_State)8) |
212 | |
213 | _Unwind_VRS_Result _Unwind_VRS_Get(struct _Unwind_Context *__context, |
214 | _Unwind_VRS_RegClass __regclass, |
215 | uint32_t __regno, |
216 | _Unwind_VRS_DataRepresentation __representation, |
217 | void *__valuep); |
218 | |
219 | _Unwind_VRS_Result _Unwind_VRS_Set(struct _Unwind_Context *__context, |
220 | _Unwind_VRS_RegClass __regclass, |
221 | uint32_t __regno, |
222 | _Unwind_VRS_DataRepresentation __representation, |
223 | void *__valuep); |
224 | |
225 | static __inline__ |
226 | _Unwind_Word _Unwind_GetGR(struct _Unwind_Context *__context, int __index) { |
227 | _Unwind_Word __value; |
228 | _Unwind_VRS_Get(__context, _UVRSC_CORE, __index, _UVRSD_UINT32, &__value); |
229 | return __value; |
230 | } |
231 | |
232 | static __inline__ |
233 | void _Unwind_SetGR(struct _Unwind_Context *__context, int __index, |
234 | _Unwind_Word __value) { |
235 | _Unwind_VRS_Set(__context, _UVRSC_CORE, __index, _UVRSD_UINT32, &__value); |
236 | } |
237 | |
238 | static __inline__ |
239 | _Unwind_Word _Unwind_GetIP(struct _Unwind_Context *__context) { |
240 | _Unwind_Word __ip = _Unwind_GetGR(__context, 15); |
241 | return __ip & ~(_Unwind_Word)(0x1); |
242 | } |
243 | |
244 | static __inline__ |
245 | void _Unwind_SetIP(struct _Unwind_Context *__context, _Unwind_Word __value) { |
246 | _Unwind_Word __thumb_mode_bit = _Unwind_GetGR(__context, 15) & 0x1; |
247 | _Unwind_SetGR(__context, 15, __value | __thumb_mode_bit); |
248 | } |
249 | #else |
250 | _Unwind_Word _Unwind_GetGR(struct _Unwind_Context *, int); |
251 | void _Unwind_SetGR(struct _Unwind_Context *, int, _Unwind_Word); |
252 | |
253 | _Unwind_Word _Unwind_GetIP(struct _Unwind_Context *); |
254 | void _Unwind_SetIP(struct _Unwind_Context *, _Unwind_Word); |
255 | #endif |
256 | |
257 | |
258 | _Unwind_Word _Unwind_GetIPInfo(struct _Unwind_Context *, int *); |
259 | |
260 | _Unwind_Word _Unwind_GetCFA(struct _Unwind_Context *); |
261 | |
262 | _Unwind_Word _Unwind_GetBSP(struct _Unwind_Context *); |
263 | |
264 | void *_Unwind_GetLanguageSpecificData(struct _Unwind_Context *); |
265 | |
266 | _Unwind_Ptr _Unwind_GetRegionStart(struct _Unwind_Context *); |
267 | |
268 | |
269 | #if !defined(__APPLE__) || !defined(__arm__) |
270 | _Unwind_Reason_Code _Unwind_RaiseException(_Unwind_Exception *); |
271 | _Unwind_Reason_Code _Unwind_ForcedUnwind(_Unwind_Exception *, _Unwind_Stop_Fn, |
272 | void *); |
273 | void _Unwind_DeleteException(_Unwind_Exception *); |
274 | void _Unwind_Resume(_Unwind_Exception *); |
275 | _Unwind_Reason_Code _Unwind_Resume_or_Rethrow(_Unwind_Exception *); |
276 | |
277 | #endif |
278 | |
279 | _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *); |
280 | |
281 | |
282 | typedef struct SjLj_Function_Context *_Unwind_FunctionContext_t; |
283 | |
284 | void _Unwind_SjLj_Register(_Unwind_FunctionContext_t); |
285 | void _Unwind_SjLj_Unregister(_Unwind_FunctionContext_t); |
286 | _Unwind_Reason_Code _Unwind_SjLj_RaiseException(_Unwind_Exception *); |
287 | _Unwind_Reason_Code _Unwind_SjLj_ForcedUnwind(_Unwind_Exception *, |
288 | _Unwind_Stop_Fn, void *); |
289 | void _Unwind_SjLj_Resume(_Unwind_Exception *); |
290 | _Unwind_Reason_Code _Unwind_SjLj_Resume_or_Rethrow(_Unwind_Exception *); |
291 | |
292 | void *_Unwind_FindEnclosingFunction(void *); |
293 | |
294 | #ifdef __APPLE__ |
295 | |
296 | _Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context *) |
297 | __attribute__((__unavailable__)); |
298 | _Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *) |
299 | __attribute__((__unavailable__)); |
300 | |
301 | |
302 | void __register_frame(const void *); |
303 | void __deregister_frame(const void *); |
304 | |
305 | struct dwarf_eh_bases { |
306 | uintptr_t tbase; |
307 | uintptr_t dbase; |
308 | uintptr_t func; |
309 | }; |
310 | void *_Unwind_Find_FDE(const void *, struct dwarf_eh_bases *); |
311 | |
312 | void __register_frame_info_bases(const void *, void *, void *, void *) |
313 | __attribute__((__unavailable__)); |
314 | void __register_frame_info(const void *, void *) __attribute__((__unavailable__)); |
315 | void __register_frame_info_table_bases(const void *, void*, void *, void *) |
316 | __attribute__((__unavailable__)); |
317 | void __register_frame_info_table(const void *, void *) |
318 | __attribute__((__unavailable__)); |
319 | void __register_frame_table(const void *) __attribute__((__unavailable__)); |
320 | void __deregister_frame_info(const void *) __attribute__((__unavailable__)); |
321 | void __deregister_frame_info_bases(const void *)__attribute__((__unavailable__)); |
322 | |
323 | #else |
324 | |
325 | _Unwind_Ptr _Unwind_GetDataRelBase(struct _Unwind_Context *); |
326 | _Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *); |
327 | |
328 | #endif |
329 | |
330 | |
331 | #ifndef HIDE_EXPORTS |
332 | #pragma GCC visibility pop |
333 | #endif |
334 | |
335 | #ifdef __cplusplus |
336 | } |
337 | #endif |
338 | |
339 | #endif |
340 | |
341 | #endif |
342 | |