1/* TILE-Gx-specific support for 32-bit ELF.
2   Copyright (C) 2011-2017 Free Software Foundation, Inc.
3
4   This file is part of BFD, the Binary File Descriptor library.
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 3 of the License, or
9   (at your option) any later version.
10
11   This program is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program; if not, write to the Free Software
18   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19   MA 02110-1301, USA.  */
20
21#include "sysdep.h"
22#include "bfd.h"
23#include "libbfd.h"
24#include "elf-bfd.h"
25#include "elfxx-tilegx.h"
26#include "elf32-tilegx.h"
27
28
29/* Support for core dump NOTE sections.  */
30
31static bfd_boolean
32tilegx_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
33{
34  int offset;
35  size_t size;
36
37  if (note->descsz != TILEGX_PRSTATUS_SIZEOF)
38    return FALSE;
39
40  /* pr_cursig */
41  elf_tdata (abfd)->core->signal =
42    bfd_get_16 (abfd, note->descdata + TILEGX_PRSTATUS_OFFSET_PR_CURSIG);
43
44  /* pr_pid */
45  elf_tdata (abfd)->core->pid =
46    bfd_get_32 (abfd, note->descdata + TILEGX_PRSTATUS_OFFSET_PR_PID);
47
48  /* pr_reg */
49  offset = TILEGX_PRSTATUS_OFFSET_PR_REG;
50  size   = TILEGX_GREGSET_T_SIZE;
51
52  /* Make a ".reg/999" section.  */
53  return _bfd_elfcore_make_pseudosection (abfd, ".reg",
54					  size, note->descpos + offset);
55}
56
57static bfd_boolean
58tilegx_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
59{
60  if (note->descsz != TILEGX_PRPSINFO_SIZEOF)
61    return FALSE;
62
63  elf_tdata (abfd)->core->program
64    = _bfd_elfcore_strndup (abfd, note->descdata + TILEGX_PRPSINFO_OFFSET_PR_FNAME, 16);
65  elf_tdata (abfd)->core->command
66    = _bfd_elfcore_strndup (abfd, note->descdata + TILEGX_PRPSINFO_OFFSET_PR_PSARGS, ELF_PR_PSARGS_SIZE);
67
68
69  /* Note that for some reason, a spurious space is tacked
70     onto the end of the args in some (at least one anyway)
71     implementations, so strip it off if it exists.  */
72  {
73    char *command = elf_tdata (abfd)->core->command;
74    int n = strlen (command);
75
76    if (0 < n && command[n - 1] == ' ')
77      command[n - 1] = '\0';
78  }
79
80  return TRUE;
81}
82
83
84#define ELF_ARCH		bfd_arch_tilegx
85#define ELF_TARGET_ID		TILEGX_ELF_DATA
86#define ELF_MACHINE_CODE	EM_TILEGX
87#define ELF_MAXPAGESIZE		0x10000
88#define ELF_COMMONPAGESIZE	0x10000
89
90#define TARGET_BIG_SYM          tilegx_elf32_be_vec
91#define TARGET_BIG_NAME         "elf32-tilegx-be"
92#define TARGET_LITTLE_SYM       tilegx_elf32_le_vec
93#define TARGET_LITTLE_NAME      "elf32-tilegx-le"
94
95#define elf_backend_reloc_type_class	     tilegx_reloc_type_class
96
97#define bfd_elf32_bfd_reloc_name_lookup      tilegx_reloc_name_lookup
98#define bfd_elf32_bfd_link_hash_table_create tilegx_elf_link_hash_table_create
99#define bfd_elf32_bfd_reloc_type_lookup	     tilegx_reloc_type_lookup
100#define bfd_elf32_bfd_merge_private_bfd_data \
101  _bfd_tilegx_elf_merge_private_bfd_data
102
103#define elf_backend_copy_indirect_symbol     tilegx_elf_copy_indirect_symbol
104#define elf_backend_create_dynamic_sections  tilegx_elf_create_dynamic_sections
105#define elf_backend_check_relocs	     tilegx_elf_check_relocs
106#define elf_backend_adjust_dynamic_symbol    tilegx_elf_adjust_dynamic_symbol
107#define elf_backend_omit_section_dynsym	     tilegx_elf_omit_section_dynsym
108#define elf_backend_size_dynamic_sections    tilegx_elf_size_dynamic_sections
109#define elf_backend_relocate_section	     tilegx_elf_relocate_section
110#define elf_backend_finish_dynamic_symbol    tilegx_elf_finish_dynamic_symbol
111#define elf_backend_finish_dynamic_sections  tilegx_elf_finish_dynamic_sections
112#define elf_backend_gc_mark_hook	     tilegx_elf_gc_mark_hook
113#define elf_backend_gc_sweep_hook            tilegx_elf_gc_sweep_hook
114#define elf_backend_plt_sym_val		     tilegx_elf_plt_sym_val
115#define elf_info_to_howto_rel                NULL
116#define elf_info_to_howto                    tilegx_info_to_howto_rela
117#define elf_backend_grok_prstatus            tilegx_elf_grok_prstatus
118#define elf_backend_grok_psinfo              tilegx_elf_grok_psinfo
119#define elf_backend_additional_program_headers tilegx_additional_program_headers
120
121#define elf_backend_init_index_section	_bfd_elf_init_1_index_section
122
123#define elf_backend_can_gc_sections 1
124#define elf_backend_can_refcount 1
125#define elf_backend_want_got_plt 1
126#define elf_backend_plt_readonly 1
127/* Align PLT mod 64 byte L2 line size. */
128#define elf_backend_plt_alignment 6
129#define elf_backend_want_plt_sym 1
130#define elf_backend_got_header_size 4
131#define elf_backend_want_dynrelro 1
132#define elf_backend_rela_normal 1
133#define elf_backend_default_execstack 0
134
135#include "elf32-target.h"
136