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73 lines
2.3 KiB
C
73 lines
2.3 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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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 <string.h>
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#include <stdlib.h>
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#include "init.h"
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#include "rse.h"
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#include "unwind_i.h"
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#ifdef UNW_REMOTE_ONLY
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int
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unw_init_local (unw_cursor_t *cursor, ucontext_t *uc)
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{
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return -UNW_EINVAL;
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}
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#else /* !UNW_REMOTE_ONLY */
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int
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unw_init_local (unw_cursor_t *cursor, ucontext_t *uc)
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{
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struct ia64_cursor *c = (struct ia64_cursor *) cursor;
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unw_word_t sol;
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int ret;
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STAT(unsigned long start, flags; ++unw.stat.api.inits;
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start = ia64_get_itc ();)
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if (unw.first_time)
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{
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unw.first_time = 0;
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ia64_init ();
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}
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/* The bsp value stored by getcontext() points to the *end* of the
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register frame of the initial function. We correct for this by
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storing the adjusted value in sc_rbs_base, which isn't used by
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getcontext()/setcontext(). */
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sol = (uc->uc_mcontext.sc_ar_pfs >> 7) & 0x7f;
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uc->uc_mcontext.sc_rbs_base = ia64_rse_skip_regs (uc->uc_mcontext.sc_ar_bsp,
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-sol);
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c->as = unw_local_addr_space;
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c->as_arg = uc;
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ret = common_init (c);
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STAT(unw.stat.api.init_time += ia64_get_itc() - start;)
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return ret;
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}
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#endif /* !UNW_REMOTE_ONLY */
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