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70 lines
2.5 KiB
70 lines
2.5 KiB
/* |
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* Unwinder backends interface. |
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* |
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* Copyright (c) 2013 Luca Clementi <luca.clementi@gmail.com> |
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* Copyright (c) 2013-2018 The strace developers. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef STRACE_UNWIND_H |
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#define STRACE_UNWIND_H |
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#include "defs.h" |
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/* |
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* Type used in stacktrace walker. |
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*/ |
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/* This storage be enough large to store unw_word_t. */ |
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typedef unsigned long unwind_function_offset_t; |
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typedef void (*unwind_call_action_fn)(void *data, |
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const char *binary_filename, |
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const char *symbol_name, |
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unwind_function_offset_t function_offset, |
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unsigned long true_offset); |
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typedef void (*unwind_error_action_fn)(void *data, |
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const char *error, |
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unsigned long true_offset); |
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struct unwind_unwinder_t { |
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const char *name; |
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/* Initialize the unwinder. */ |
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void (*init)(void); |
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/* Make/destroy the context data attached to tcb. */ |
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void * (*tcb_init)(struct tcb *); |
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void (*tcb_fin)(struct tcb *); |
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/* Walk the stack. */ |
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void (*tcb_walk)(struct tcb *, |
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unwind_call_action_fn, |
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unwind_error_action_fn, |
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void *); |
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}; |
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extern const struct unwind_unwinder_t unwinder; |
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#endif /* !STRACE_UNWIND_H */
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