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a9dce3c06e
the instruction after the call for a normal frame. libunwind uses IP-1 to lookup unwind information. However, this is not necessary for interrupted frames such as signal frames (or interrupt frames) in the kernel context. This patch handles both cases correctly. Based on work by Mark Wielaard <mwielaard@redhat.com>
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2008 CodeSourcery
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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 "init.h"
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#include "unwind_i.h"
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PROTECTED int
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unw_init_remote (unw_cursor_t *cursor, unw_addr_space_t as, void *as_arg)
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{
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#ifdef UNW_LOCAL_ONLY
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return -UNW_EINVAL;
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#else /* !UNW_LOCAL_ONLY */
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struct cursor *c = (struct cursor *) cursor;
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if (tdep_needs_initialization)
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tdep_init ();
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Debug (1, "(cursor=%p)\n", c);
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c->dwarf.as = as;
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c->dwarf.as_arg = as_arg;
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return common_init (c, 0);
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#endif /* !UNW_LOCAL_ONLY */
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}
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