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      1 /* libunwind - a platform-independent unwind library
      2 
      3    Copied from src/x86_64/, modified slightly (or made empty stubs) for
      4    building frysk successfully on ppc64, by Wu Zhou <woodzltc (at) cn.ibm.com>
      5 
      6 This file is part of libunwind.
      7 
      8 Permission is hereby granted, free of charge, to any person obtaining
      9 a copy of this software and associated documentation files (the
     10 "Software"), to deal in the Software without restriction, including
     11 without limitation the rights to use, copy, modify, merge, publish,
     12 distribute, sublicense, and/or sell copies of the Software, and to
     13 permit persons to whom the Software is furnished to do so, subject to
     14 the following conditions:
     15 
     16 The above copyright notice and this permission notice shall be
     17 included in all copies or substantial portions of the Software.
     18 
     19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     20 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     21 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     22 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
     23 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     24 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     25 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
     26 
     27 #include <libunwind_i.h>
     28 
     29 #ifdef UNW_TARGET_PPC64
     30 #include "../ppc64/init.h"
     31 #else
     32 #include "../ppc32/init.h"
     33 #endif
     34 
     35 #ifdef UNW_REMOTE_ONLY
     36 
     37 PROTECTED int
     38 unw_init_local (unw_cursor_t *cursor, ucontext_t *uc)
     39 {
     40   /* XXX: empty stub.  */
     41   return -UNW_EINVAL;
     42 }
     43 
     44 #else /* !UNW_REMOTE_ONLY */
     45 
     46 PROTECTED int
     47 unw_init_local (unw_cursor_t *cursor, ucontext_t *uc)
     48 {
     49   struct cursor *c = (struct cursor *) cursor;
     50 
     51   if (!tdep_init_done)
     52     tdep_init ();
     53 
     54   Debug (1, "(cursor=%p)\n", c);
     55 
     56   c->dwarf.as = unw_local_addr_space;
     57   c->dwarf.as_arg = uc;
     58 
     59   #ifdef UNW_TARGET_PPC64
     60     return common_init_ppc64 (c, 1);
     61   #else
     62     return common_init_ppc32 (c, 1);
     63   #endif
     64 }
     65 
     66 #endif /* !UNW_REMOTE_ONLY */
     67