b029fb598a
existing libunwind used '0' in lsda_encoding as 'not present,'
whereas that is a valid encoding and does occur and would be
ignored. a missing encoding is actually 0xff.
The commit that addresses this is:
commit 8d4b51028d1a12b58d616f4b605254a877caafcf
Author: joerg <joerg>
Date: Tue Mar 11 23:52:17 2014 +0000
0 is a valid LSDA encoding and can be seen in statically linked
programs. Initialize lsdaEncoding to DW_EH_PE_omit and check for that
value to decide whether a value should be decoded.
more bugfixes are necessary. this update is up to:
commit b1f513eedd332426d88acbb118b6e9070966dcb9
Author: joerg <joerg>
Date: Wed May 14 22:13:36 2014 +0000
Lazy VFP processing works a lot better if the functions contain a return
instruction.
90 lines
3.2 KiB
C
90 lines
3.2 KiB
C
//===------------------------------- unwind.h -----------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//
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// C++ ABI Level 1 ABI documented at:
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// http://mentorembedded.github.io/cxx-abi/abi-eh.html
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//
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//===----------------------------------------------------------------------===//
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#ifndef _UNWIND_H
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#define _UNWIND_H
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#include <stdint.h>
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#include <stddef.h>
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typedef enum {
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_URC_NO_REASON = 0,
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_URC_FOREIGN_EXCEPTION_CAUGHT = 1,
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_URC_FATAL_PHASE2_ERROR = 2,
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_URC_FATAL_PHASE1_ERROR = 3,
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_URC_NORMAL_STOP = 4,
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_URC_END_OF_STACK = 5,
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_URC_HANDLER_FOUND = 6,
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_URC_INSTALL_CONTEXT = 7,
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_URC_CONTINUE_UNWIND = 8
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} _Unwind_Reason_Code;
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typedef enum {
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_UA_SEARCH_PHASE = 1,
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_UA_CLEANUP_PHASE = 2,
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_UA_HANDLER_FRAME = 4,
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_UA_FORCE_UNWIND = 8,
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_UA_END_OF_STACK = 16 /* GCC extension */
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} _Unwind_Action;
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struct _Unwind_Context;
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struct _Unwind_Exception {
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uint64_t exception_class;
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void (*exception_cleanup)(_Unwind_Reason_Code, struct _Unwind_Exception *);
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uintptr_t private_1;
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uintptr_t private_2;
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} __attribute__((__aligned__));
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typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn)(int, _Unwind_Action, uint64_t,
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struct _Unwind_Exception *,
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struct _Unwind_Context *,
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void *);
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typedef _Unwind_Reason_Code (*__personality_routine)(int, _Unwind_Action,
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uint64_t,
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struct _Unwind_Exception *,
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struct _Unwind_Context *);
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__BEGIN_DECLS
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_Unwind_Reason_Code _Unwind_RaiseException(struct _Unwind_Exception *);
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void _Unwind_Resume(struct _Unwind_Exception *) __dead;
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_Unwind_Reason_Code _Unwind_Resume_or_Rethrow(struct _Unwind_Exception *);
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_Unwind_Reason_Code _Unwind_ForcedUnwind(struct _Unwind_Exception *,
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_Unwind_Stop_Fn, void *);
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void _Unwind_DeleteException(struct _Unwind_Exception *);
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uintptr_t _Unwind_GetGR(struct _Unwind_Context *, int);
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void _Unwind_SetGR(struct _Unwind_Context *, int, uintptr_t);
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uintptr_t _Unwind_GetIP(struct _Unwind_Context *);
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uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *, int *);
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uintptr_t _Unwind_GetCFA(struct _Unwind_Context *);
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void _Unwind_SetIP(struct _Unwind_Context *, uintptr_t);
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uintptr_t _Unwind_GetRegionStart(struct _Unwind_Context *);
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uintptr_t _Unwind_GetLanguageSpecificData(struct _Unwind_Context *);
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uintptr_t _Unwind_GetDataRelBase(struct _Unwind_Context *);
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uintptr_t _Unwind_GetTextRelBase(struct _Unwind_Context *);
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typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context *,
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void *);
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_Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
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void *_Unwind_FindEnclosingFunction(void *);
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void __register_frame(const void *);
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void __register_frame_info(const void *, void *);
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void __deregister_frame(const void *);
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void *__deregister_frame_info(const void *);
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__END_DECLS
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#endif // _UNWIND_H
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