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- /* PowerPC64-specific support for 64-bit ELF.
- Copyright (C) 2002-2022 Free Software Foundation, Inc.
- This file is part of BFD, the Binary File Descriptor library.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
- MA 02110-1301, USA. */
- /* Used to pass info between ld and bfd. */
- struct ppc64_elf_params
- {
- /* Linker stub bfd. */
- bfd *stub_bfd;
- /* Linker call-backs. */
- asection * (*add_stub_section) (const char *, asection *);
- void (*layout_sections_again) (void);
- void (*edit) (void);
- /* Maximum size of a group of input sections that can be handled by
- one stub section. A value of +/-1 indicates the bfd back-end
- should use a suitable default size. */
- bfd_signed_vma group_size;
- /* Whether to use a special call stub for __tls_get_addr. */
- int tls_get_addr_opt;
- /* Whether the special call stub should save r4..r12. */
- int no_tls_get_addr_regsave;
- /* Whether to allow multiple toc sections. */
- int no_multi_toc;
- /* Set if PLT call stubs should load r11. */
- int plt_static_chain;
- /* Set if PLT call stubs need to be thread safe on power7+. */
- int plt_thread_safe;
- /* Set if individual PLT call stubs should be aligned. */
- int plt_stub_align;
- /* Set if PLT call stubs for localentry:0 functions should omit r2 save. */
- int plt_localentry0;
- /* Whether to use power10 instructions in linkage stubs. */
- int power10_stubs;
- /* Whether R_PPC64_PCREL_OPT should be ignored. */
- int no_pcrel_opt;
- /* Whether to canonicalize .opd so that there are no overlapping
- .opd entries. */
- int non_overlapping_opd;
- /* Whether to emit symbols for stubs. */
- int emit_stub_syms;
- /* Whether to generate out-of-line register save/restore for gcc -Os code. */
- int save_restore_funcs;
- /* Set when a potential variable is detected in .toc. */
- int object_in_toc;
- };
- bool ppc64_elf_init_stub_bfd
- (struct bfd_link_info *, struct ppc64_elf_params *);
- bool ppc64_elf_edit_opd
- (struct bfd_link_info *);
- bool ppc64_elf_inline_plt
- (struct bfd_link_info *);
- bool ppc64_elf_tls_setup
- (struct bfd_link_info *);
- bool ppc64_elf_tls_optimize
- (struct bfd_link_info *);
- bool ppc64_elf_edit_toc
- (struct bfd_link_info *);
- bool ppc64_elf_has_small_toc_reloc
- (asection *);
- bfd_vma ppc64_elf_set_toc
- (struct bfd_link_info *, bfd *);
- int ppc64_elf_setup_section_lists
- (struct bfd_link_info *);
- void ppc64_elf_start_multitoc_partition
- (struct bfd_link_info *);
- bool ppc64_elf_next_toc_section
- (struct bfd_link_info *, asection *);
- bool ppc64_elf_layout_multitoc
- (struct bfd_link_info *);
- void ppc64_elf_finish_multitoc_partition
- (struct bfd_link_info *);
- bool ppc64_elf_check_init_fini
- (struct bfd_link_info *);
- bool ppc64_elf_next_input_section
- (struct bfd_link_info *, asection *);
- bool ppc64_elf_size_stubs
- (struct bfd_link_info *);
- bool ppc64_elf_build_stubs
- (struct bfd_link_info *, char **);
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