derek.holloway
7502bf64a4
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112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
/* PowerPC64-specific support for 64-bit ELF.
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Copyright (C) 2002-2024 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* Used to pass info between ld and bfd. */
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struct ppc64_elf_params
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{
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/* Linker stub bfd. */
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bfd *stub_bfd;
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/* Linker call-backs. */
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asection * (*add_stub_section) (const char *, asection *);
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void (*layout_sections_again) (void);
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void (*edit) (void);
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/* Maximum size of a group of input sections that can be handled by
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one stub section. A value of +/-1 indicates the bfd back-end
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should use a suitable default size. */
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bfd_signed_vma group_size;
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/* Whether to use a special call stub for __tls_get_addr. */
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int tls_get_addr_opt;
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/* Whether the special call stub should save r4..r12. */
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int no_tls_get_addr_regsave;
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/* Whether to allow multiple toc sections. */
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int no_multi_toc;
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/* Set if PLT call stubs should load r11. */
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int plt_static_chain;
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/* Set if PLT call stubs need to be thread safe on power7+. */
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int plt_thread_safe;
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/* Set if individual PLT call stubs should be aligned. */
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int plt_stub_align;
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/* Set if PLT call stubs for localentry:0 functions should omit r2 save. */
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int plt_localentry0;
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/* Whether to use power10 instructions in linkage stubs. */
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int power10_stubs;
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/* Whether R_PPC64_PCREL_OPT should be ignored. */
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int no_pcrel_opt;
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/* Whether to canonicalize .opd so that there are no overlapping
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.opd entries. */
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int non_overlapping_opd;
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/* Whether to emit symbols for stubs. */
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int emit_stub_syms;
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/* Whether to generate out-of-line register save/restore for gcc -Os code. */
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int save_restore_funcs;
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/* Set when a potential variable is detected in .toc. */
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int object_in_toc;
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};
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bool ppc64_elf_init_stub_bfd
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(struct bfd_link_info *, struct ppc64_elf_params *);
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bool ppc64_elf_edit_opd
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(struct bfd_link_info *);
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bool ppc64_elf_inline_plt
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(struct bfd_link_info *);
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bool ppc64_elf_tls_setup
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(struct bfd_link_info *);
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bool ppc64_elf_tls_optimize
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(struct bfd_link_info *);
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bool ppc64_elf_edit_toc
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(struct bfd_link_info *);
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bool ppc64_elf_has_small_toc_reloc
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(asection *);
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bfd_vma ppc64_elf_set_toc
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(struct bfd_link_info *, bfd *);
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int ppc64_elf_setup_section_lists
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(struct bfd_link_info *);
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void ppc64_elf_start_multitoc_partition
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(struct bfd_link_info *);
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bool ppc64_elf_next_toc_section
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(struct bfd_link_info *, asection *);
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bool ppc64_elf_layout_multitoc
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(struct bfd_link_info *);
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void ppc64_elf_finish_multitoc_partition
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(struct bfd_link_info *);
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bool ppc64_elf_check_init_fini
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(struct bfd_link_info *);
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bool ppc64_elf_next_input_section
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(struct bfd_link_info *, asection *);
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bool ppc64_elf_size_stubs
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(struct bfd_link_info *);
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bool ppc64_elf_build_stubs
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(struct bfd_link_info *, char **);
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