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https://github.com/tobast/libunwind-eh_elf.git
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9e98f15e9a
Adds new function to perform a pure stack walk without unwinding, functionally similar to backtrace() but accelerated by an address attribute cache the caller maintains across calls.
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2003 Hewlett-Packard Co
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Contributed by ...
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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_i.h"
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static inline int
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common_init (struct cursor *c, unsigned use_prev_instr)
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{
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int ret;
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c->ip_loc = HPPA_REG_LOC (c, UNW_HPPA_IP);
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c->sp_loc = HPPA_REG_LOC (c, UNW_HPPA_SP);
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ret = hppa_get (c, c->ip_loc, &c->ip);
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if (ret < 0)
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return ret;
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ret = hppa_get (c, HPPA_REG_LOC (c, UNW_HPPA_SP), &c->sp);
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if (ret < 0)
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return ret;
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c->dwarf.stash_frames = 0;
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c->dwarf.use_prev_instr = use_prev_instr;
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return 0;
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}
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