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      1 /* m68k ABI-specified defaults for DWARF CFI.
      2    This file is part of elfutils.
      3 
      4    This file is free software; you can redistribute it and/or modify
      5    it under the terms of either
      6 
      7      * the GNU Lesser General Public License as published by the Free
      8        Software Foundation; either version 3 of the License, or (at
      9        your option) any later version
     10 
     11    or
     12 
     13      * the GNU General Public License as published by the Free
     14        Software Foundation; either version 2 of the License, or (at
     15        your option) any later version
     16 
     17    or both in parallel, as here.
     18 
     19    elfutils is distributed in the hope that it will be useful, but
     20    WITHOUT ANY WARRANTY; without even the implied warranty of
     21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     22    General Public License for more details.
     23 
     24    You should have received copies of the GNU General Public License and
     25    the GNU Lesser General Public License along with this program.  If
     26    not, see <http://www.gnu.org/licenses/>.  */
     27 
     28 #ifdef HAVE_CONFIG_H
     29 # include <config.h>
     30 #endif
     31 
     32 #include <dwarf.h>
     33 
     34 #define BACKEND m68k_
     35 #include "libebl_CPU.h"
     36 
     37 int
     38 m68k_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
     39 {
     40   static const uint8_t abi_cfi[] =
     41     {
     42 #define SV(n) DW_CFA_same_value, ULEB128_7 (n)
     43       /* Call-saved registers %d2-%d7, %a2-%a6.  */
     44       SV (2), SV (3), SV (4), SV (5), SV (6), SV (7),
     45       SV (10), SV (11), SV (12), SV (13), SV (14),
     46 
     47       /* The CFA is the SP.  */
     48       DW_CFA_val_offset, ULEB128_7 (15), ULEB128_7 (0),
     49     };
     50 
     51   abi_info->initial_instructions = abi_cfi;
     52   abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
     53   abi_info->data_alignment_factor = -4;
     54 
     55   abi_info->return_address_register = 24; /* %pc */
     56 
     57   return 0;
     58 }
     59