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       1                 :            : /* Initialization of S/390 specific backend library.
       2                 :            :    Copyright (C) 2005, 2006, 2013 Red Hat, Inc.
       3                 :            :    This file is part of elfutils.
       4                 :            : 
       5                 :            :    This file is free software; you can redistribute it and/or modify
       6                 :            :    it under the terms of either
       7                 :            : 
       8                 :            :      * the GNU Lesser General Public License as published by the Free
       9                 :            :        Software Foundation; either version 3 of the License, or (at
      10                 :            :        your option) any later version
      11                 :            : 
      12                 :            :    or
      13                 :            : 
      14                 :            :      * the GNU General Public License as published by the Free
      15                 :            :        Software Foundation; either version 2 of the License, or (at
      16                 :            :        your option) any later version
      17                 :            : 
      18                 :            :    or both in parallel, as here.
      19                 :            : 
      20                 :            :    elfutils is distributed in the hope that it will be useful, but
      21                 :            :    WITHOUT ANY WARRANTY; without even the implied warranty of
      22                 :            :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      23                 :            :    General Public License for more details.
      24                 :            : 
      25                 :            :    You should have received copies of the GNU General Public License and
      26                 :            :    the GNU Lesser General Public License along with this program.  If
      27                 :            :    not, see <http://www.gnu.org/licenses/>.  */
      28                 :            : 
      29                 :            : #ifdef HAVE_CONFIG_H
      30                 :            : # include <config.h>
      31                 :            : #endif
      32                 :            : 
      33                 :            : #define BACKEND         s390_
      34                 :            : #define RELOC_PREFIX    R_390_
      35                 :            : #include "libebl_CPU.h"
      36                 :            : 
      37                 :            : /* This defines the common reloc hooks based on arm_reloc.def.  */
      38                 :            : #include "common-reloc.c"
      39                 :            : 
      40                 :            : extern __typeof (s390_core_note) s390x_core_note;
      41                 :            : 
      42                 :            : 
      43                 :            : Ebl *
      44                 :        176 : s390_init (Elf *elf __attribute__ ((unused)),
      45                 :            :            GElf_Half machine __attribute__ ((unused)),
      46                 :            :            Ebl *eh)
      47                 :            : {
      48                 :            :   /* We handle it.  */
      49         [ +  + ]:        176 :   s390_init_reloc (eh);
      50                 :        176 :   HOOK (eh, reloc_simple_type);
      51                 :        176 :   HOOK (eh, check_special_symbol);
      52                 :        176 :   HOOK (eh, register_info);
      53                 :        176 :   HOOK (eh, return_value_location);
      54         [ +  + ]:        176 :   if (eh->class == ELFCLASS64)
      55                 :         98 :     eh->core_note = s390x_core_note;
      56                 :            :   else
      57                 :         78 :     HOOK (eh, core_note);
      58                 :        176 :   HOOK (eh, abi_cfi);
      59                 :            :   /* gcc/config/ #define DWARF_FRAME_REGISTERS 34.
      60                 :            :      But from the gcc/config/s390/s390.h "Register usage." comment it looks as
      61                 :            :      if #32 (Argument pointer) and #33 (Condition code) are not used for
      62                 :            :      unwinding.  */
      63                 :        176 :   eh->frame_nregs = 32;
      64                 :        176 :   HOOK (eh, set_initial_registers_tid);
      65         [ +  + ]:        176 :   if (eh->class == ELFCLASS32)
      66                 :         78 :     HOOK (eh, normalize_pc);
      67                 :        176 :   HOOK (eh, unwind);
      68                 :            : 
      69                 :            :   /* Only the 64-bit format uses the incorrect hash table entry size.  */
      70         [ +  + ]:        176 :   if (eh->class == ELFCLASS64)
      71                 :         98 :     eh->sysvhash_entrysize = sizeof (Elf64_Xword);
      72                 :            : 
      73                 :        176 :   return eh;
      74                 :            : }