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      1 /* IA-64 specific symbolic name handling.
      2    Copyright (C) 2002-2009 Red Hat, Inc.
      3    This file is part of Red Hat elfutils.
      4    Written by Ulrich Drepper <drepper (at) redhat.com>, 2002.
      5 
      6    Red Hat elfutils is free software; you can redistribute it and/or modify
      7    it under the terms of the GNU General Public License as published by the
      8    Free Software Foundation; version 2 of the License.
      9 
     10    Red Hat elfutils is distributed in the hope that it will be useful, but
     11    WITHOUT ANY WARRANTY; without even the implied warranty of
     12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13    General Public License for more details.
     14 
     15    You should have received a copy of the GNU General Public License along
     16    with Red Hat elfutils; if not, write to the Free Software Foundation,
     17    Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
     18 
     19    Red Hat elfutils is an included package of the Open Invention Network.
     20    An included package of the Open Invention Network is a package for which
     21    Open Invention Network licensees cross-license their patents.  No patent
     22    license is granted, either expressly or impliedly, by designation as an
     23    included package.  Should you wish to participate in the Open Invention
     24    Network licensing program, please visit www.openinventionnetwork.com
     25    <http://www.openinventionnetwork.com>.  */
     26 
     27 #ifdef HAVE_CONFIG_H
     28 # include <config.h>
     29 #endif
     30 
     31 #include <elf.h>
     32 #include <stddef.h>
     33 #include <assert.h>
     34 
     35 #define BACKEND		ia64_
     36 #include "libebl_CPU.h"
     37 
     38 
     39 const char *
     40 ia64_segment_type_name (int segment, char *buf __attribute__ ((unused)),
     41 			size_t len __attribute__ ((unused)))
     42 {
     43   switch (segment)
     44     {
     45     case PT_IA_64_ARCHEXT:
     46       return "IA_64_ARCHEXT";
     47     case PT_IA_64_UNWIND:
     48       return "IA_64_UNWIND";
     49     case PT_IA_64_HP_OPT_ANOT:
     50       return "IA_64_HP_OPT_ANOT";
     51     case PT_IA_64_HP_HSL_ANOT:
     52       return "IA_64_HP_HSL_ANOT";
     53     case PT_IA_64_HP_STACK:
     54       return "IA_64_HP_STACK";
     55     default:
     56       break;
     57     }
     58   return NULL;
     59 }
     60 
     61 const char *
     62 ia64_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)),
     63 		       size_t len __attribute__ ((unused)))
     64 {
     65   switch (tag)
     66     {
     67     case DT_IA_64_PLT_RESERVE:
     68       return "IA_64_PLT_RESERVE";
     69     default:
     70       break;
     71     }
     72   return NULL;
     73 }
     74 
     75 /* Check dynamic tag.  */
     76 bool
     77 ia64_dynamic_tag_check (int64_t tag)
     78 {
     79   return tag == DT_IA_64_PLT_RESERVE;
     80 }
     81 
     82 /* Check whether machine flags are valid.  */
     83 bool
     84 ia64_machine_flag_check (GElf_Word flags)
     85 {
     86   return ((flags &~ EF_IA_64_ABI64) == 0);
     87 }
     88 
     89 /* Check whether SHF_MASKPROC flags are valid.  */
     90 bool
     91 ia64_machine_section_flag_check (GElf_Xword sh_flags)
     92 {
     93   return (sh_flags &~ (SHF_IA_64_SHORT | SHF_IA_64_NORECOV)) == 0;
     94 }
     95 
     96 /* Return symbolic representation of section type.  */
     97 const char *
     98 ia64_section_type_name (int type,
     99 			char *buf __attribute__ ((unused)),
    100 			size_t len __attribute__ ((unused)))
    101 {
    102   switch (type)
    103     {
    104     case SHT_IA_64_EXT:
    105       return "IA_64_EXT";
    106     case SHT_IA_64_UNWIND:
    107       return "IA_64_UNWIND";
    108     }
    109 
    110   return NULL;
    111 }
    112 
    113 /* Check for the simple reloc types.  */
    114 Elf_Type
    115 ia64_reloc_simple_type (Ebl *ebl, int type)
    116 {
    117   switch (type)
    118     {
    119       /* The SECREL types when used with non-allocated sections
    120 	 like .debug_* are the same as direct absolute relocs
    121 	 applied to those sections, since a 0 section address is assumed.
    122 	 So we treat them the same here.  */
    123 
    124     case R_IA64_SECREL32MSB:
    125     case R_IA64_DIR32MSB:
    126       if (ebl->data == ELFDATA2MSB)
    127 	return ELF_T_WORD;
    128       break;
    129     case R_IA64_SECREL32LSB:
    130     case R_IA64_DIR32LSB:
    131       if (ebl->data == ELFDATA2LSB)
    132 	return ELF_T_WORD;
    133       break;
    134     case R_IA64_DIR64MSB:
    135     case R_IA64_SECREL64MSB:
    136       if (ebl->data == ELFDATA2MSB)
    137 	return ELF_T_XWORD;
    138       break;
    139     case R_IA64_SECREL64LSB:
    140     case R_IA64_DIR64LSB:
    141       if (ebl->data == ELFDATA2LSB)
    142 	return ELF_T_XWORD;
    143       break;
    144     }
    145 
    146   return ELF_T_NUM;
    147 }
    148