1 /* PowerPC64-specific support for 64-bit ELF.
2 Copyright (C) 2002-2016 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
21 /* Used to pass info between ld and bfd. */
22 struct ppc64_elf_params
24 /* Linker stub bfd. */
27 /* Linker call-backs. */
28 asection * (*add_stub_section) (const char *, asection *);
29 void (*layout_sections_again) (void);
31 /* Maximum size of a group of input sections that can be handled by
32 one stub section. A value of +/-1 indicates the bfd back-end
33 should use a suitable default size. */
34 bfd_signed_vma group_size;
36 /* Whether to use a special call stub for __tls_get_addr. */
39 /* Whether to allow multiple toc sections. */
42 /* Set if PLT call stubs should load r11. */
45 /* Set if PLT call stubs need to be thread safe on power7+. */
48 /* Set if individual PLT call stubs should be aligned. */
51 /* Whether to canonicalize .opd so that there are no overlapping
53 int non_overlapping_opd;
55 /* Whether to emit symbols for stubs. */
58 /* Whether to generate out-of-line register save/restore for gcc -Os code. */
59 int save_restore_funcs;
61 /* Set when a potential variable is detected in .toc. */
65 bfd_boolean ppc64_elf_init_stub_bfd
66 (struct bfd_link_info *, struct ppc64_elf_params *);
67 bfd_boolean ppc64_elf_edit_opd
68 (struct bfd_link_info *);
69 asection *ppc64_elf_tls_setup
70 (struct bfd_link_info *);
71 bfd_boolean ppc64_elf_tls_optimize
72 (struct bfd_link_info *);
73 bfd_boolean ppc64_elf_edit_toc
74 (struct bfd_link_info *);
75 bfd_boolean ppc64_elf_has_small_toc_reloc
77 bfd_vma ppc64_elf_set_toc
78 (struct bfd_link_info *, bfd *);
79 int ppc64_elf_setup_section_lists
80 (struct bfd_link_info *);
81 void ppc64_elf_start_multitoc_partition
82 (struct bfd_link_info *);
83 bfd_boolean ppc64_elf_next_toc_section
84 (struct bfd_link_info *, asection *);
85 bfd_boolean ppc64_elf_layout_multitoc
86 (struct bfd_link_info *);
87 void ppc64_elf_finish_multitoc_partition
88 (struct bfd_link_info *);
89 bfd_boolean ppc64_elf_check_init_fini
90 (struct bfd_link_info *);
91 bfd_boolean ppc64_elf_next_input_section
92 (struct bfd_link_info *, asection *);
93 bfd_boolean ppc64_elf_size_stubs
94 (struct bfd_link_info *);
95 bfd_boolean ppc64_elf_build_stubs
96 (struct bfd_link_info *, char **);