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- /* libunwind - a platform-independent unwind library
- Copyright (C) 2008 CodeSourcery
- This file is part of libunwind.
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
- #include "unwind_i.h"
- static inline int
- common_init (struct cursor *c, unsigned use_prev_instr)
- {
- int ret, i;
- for (i = 0; i < 32; i++)
- c->dwarf.loc[i] = DWARF_REG_LOC (&c->dwarf, UNW_MIPS_R0 + i);
- for (i = 32; i < DWARF_NUM_PRESERVED_REGS; ++i)
- c->dwarf.loc[i] = DWARF_NULL_LOC;
- ret = dwarf_get (&c->dwarf, c->dwarf.loc[31], &c->dwarf.ip);
- if (ret < 0)
- return ret;
- ret = dwarf_get (&c->dwarf, DWARF_REG_LOC (&c->dwarf, UNW_MIPS_R29),
- &c->dwarf.cfa);
- if (ret < 0)
- return ret;
- /* FIXME: Initialisation for other registers. */
- c->dwarf.args_size = 0;
- c->dwarf.ret_addr_column = 0;
- c->dwarf.stash_frames = 0;
- c->dwarf.use_prev_instr = use_prev_instr;
- c->dwarf.pi_valid = 0;
- c->dwarf.pi_is_dynamic = 0;
- c->dwarf.hint = 0;
- c->dwarf.prev_rs = 0;
- return 0;
- }
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