xref: /third_party/elfutils/backends/sh_symbol.c (revision da0c48c4) 
1/* SH specific relocation handling.
2   Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc.
3   This file is part of elfutils.
4   Written by Ulrich Drepper <drepper@redhat.com>, 2000.
5
6   This file is free software; you can redistribute it and/or modify
7   it under the terms of either
8
9     * the GNU Lesser General Public License as published by the Free
10       Software Foundation; either version 3 of the License, or (at
11       your option) any later version
12
13   or
14
15     * the GNU General Public License as published by the Free
16       Software Foundation; either version 2 of the License, or (at
17       your option) any later version
18
19   or both in parallel, as here.
20
21   elfutils is distributed in the hope that it will be useful, but
22   WITHOUT ANY WARRANTY; without even the implied warranty of
23   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
24   General Public License for more details.
25
26   You should have received copies of the GNU General Public License and
27   the GNU Lesser General Public License along with this program.  If
28   not, see <http://www.gnu.org/licenses/>.  */
29
30#ifdef HAVE_CONFIG_H
31# include <config.h>
32#endif
33
34#include <elf.h>
35#include <stddef.h>
36
37#define BACKEND sh_
38#include "libebl_CPU.h"
39
40
41/* Return true if the symbol type is that referencing the GOT.  */
42bool
43sh_gotpc_reloc_check (Elf *elf __attribute__ ((unused)), int type)
44{
45  return type == R_SH_GOTPC;
46}
47
48/* Check for the simple reloc types.  */
49Elf_Type
50sh_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type,
51		      int *addsub __attribute__ ((unused)))
52{
53  switch (type)
54    {
55    case R_SH_DIR32:
56      return ELF_T_WORD;
57    default:
58      return ELF_T_NUM;
59    }
60}
61
62/* Check whether machine flags are valid.  */
63bool
64sh_machine_flag_check (GElf_Word flags)
65{
66  switch (flags & EF_SH_MACH_MASK)
67    {
68    case EF_SH_UNKNOWN:
69    case EF_SH1:
70    case EF_SH2:
71    case EF_SH3:
72    case EF_SH_DSP:
73    case EF_SH3_DSP:
74    case EF_SH4AL_DSP:
75    case EF_SH3E:
76    case EF_SH4:
77    case EF_SH2E:
78    case EF_SH4A:
79    case EF_SH2A:
80    case EF_SH4_NOFPU:
81    case EF_SH4A_NOFPU:
82    case EF_SH4_NOMMU_NOFPU:
83    case EF_SH2A_NOFPU:
84    case EF_SH3_NOMMU:
85    case EF_SH2A_SH4_NOFPU:
86    case EF_SH2A_SH3_NOFPU:
87    case EF_SH2A_SH4:
88    case EF_SH2A_SH3E:
89      break;
90    default:
91      return false;
92    }
93
94  return ((flags &~ (EF_SH_MACH_MASK)) == 0);
95}
96