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42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2001-2002 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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libunwind is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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libunwind is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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As a special exception, if you link this library with other files to
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produce an executable, this library does not by itself cause the
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resulting executable to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why the
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executable file might be covered by the GNU General Public
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License. */
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#include "unwind_i.h"
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int
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unw_is_signal_frame (unw_cursor_t *cursor)
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{
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struct ia64_cursor *c = (struct ia64_cursor *) cursor;
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struct ia64_state_record sr;
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int ret;
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/* Crude and slow, but we need to peek ahead into the unwind
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descriptors to find out if the current IP is inside the signal
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trampoline. */
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ret = ia64_create_state_record (c, &sr);
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if (ret < 0)
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return ret;
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return (c->pi.flags & IA64_FLAG_SIGTRAMP) != 0;
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}
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