1 /* Initialization of SPARC specific backend library.
2 Copyright (C) 2002, 2005, 2006, 2007, 2008 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 sparc_
34 #define RELOC_PREFIX R_SPARC_
35 #include "libebl_CPU.h"
36
37 /* In SPARC some relocations use the most significative 24 bits of the
38 r_type field to encode a secondary addend. Make sure the routines
39 in common-reloc.c acknowledge this. */
40 #define RELOC_TYPE_ID(type) ((type) & 0xff)
41
42 /* This defines the common reloc hooks based on sparc_reloc.def. */
43 #include "common-reloc.c"
44
45 extern __typeof (EBLHOOK (core_note)) sparc64_core_note attribute_hidden;
46
47 const char *
sparc_init(Elf * elf,GElf_Half machine,Ebl * eh,size_t ehlen)48 sparc_init (Elf *elf __attribute__ ((unused)),
49 GElf_Half machine __attribute__ ((unused)),
50 Ebl *eh,
51 size_t ehlen)
52 {
53 /* Check whether the Elf_BH object has a sufficent size. */
54 if (ehlen < sizeof (Ebl))
55 return NULL;
56
57 /* We handle it. */
58 sparc_init_reloc (eh);
59 HOOK (eh, reloc_simple_type);
60 HOOK (eh, machine_flag_check);
61 HOOK (eh, check_special_section);
62 HOOK (eh, symbol_type_name);
63 HOOK (eh, dynamic_tag_name);
64 HOOK (eh, dynamic_tag_check);
65 if (eh->class == ELFCLASS64)
66 eh->core_note = sparc64_core_note;
67 else
68 HOOK (eh, core_note);
69 HOOK (eh, auxv_info);
70 HOOK (eh, register_info);
71 HOOK (eh, return_value_location);
72 HOOK (eh, check_object_attribute);
73 HOOK (eh, abi_cfi);
74 /* gcc/config/sparc.h define FIRST_PSEUDO_REGISTER */
75 eh->frame_nregs = 103;
76 /* The CFI Dwarf register with the "return address" in sparc
77 actually contains the call address. The return address is
78 located 8 bytes after it. */
79 eh->ra_offset = 8;
80 HOOK (eh, set_initial_registers_tid);
81
82 return MODVERSION;
83 }
84