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