mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-11-05 09:19:27 +01:00
53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
/* libunwind - a platform-independent unwind library
|
|
Copyright (C) 2003 Hewlett-Packard Co
|
|
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
|
|
|
|
This file is part of libunwind.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining
|
|
a copy of this software and associated documentation files (the
|
|
"Software"), to deal in the Software without restriction, including
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
|
distribute, sublicense, and/or sell copies of the Software, and to
|
|
permit persons to whom the Software is furnished to do so, subject to
|
|
the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be
|
|
included in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
|
|
#include "unwind-internal.h"
|
|
|
|
PROTECTED _Unwind_Reason_Code
|
|
_Unwind_Backtrace (_Unwind_Trace_Fn trace, void *trace_parameter)
|
|
{
|
|
struct _Unwind_Context context;
|
|
unw_context_t uc;
|
|
int ret;
|
|
|
|
if (_Unwind_InitContext (&context, &uc) < 0)
|
|
return _URC_FATAL_PHASE1_ERROR;
|
|
|
|
/* Phase 1 (search phase) */
|
|
|
|
while (1)
|
|
{
|
|
if ((ret = unw_step (&context.cursor)) <= 0)
|
|
{
|
|
if (ret == 0)
|
|
return _URC_END_OF_STACK;
|
|
else
|
|
return _URC_FATAL_PHASE1_ERROR;
|
|
}
|
|
|
|
if ((*trace) (&context, trace_parameter) != _URC_NO_REASON)
|
|
return _URC_FATAL_PHASE1_ERROR;
|
|
}
|
|
}
|