1 /* PowerPC64-specific support for 64-bit ELF. 2 Copyright (C) 2002-2025 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 /* Used to pass info between ld and bfd. */ 22 struct ppc64_elf_params 23 { 24 /* Linker stub bfd. */ 25 bfd *stub_bfd; 26 27 /* Linker call-backs. */ 28 asection * (*add_stub_section) (const char *, asection *); 29 void (*layout_sections_again) (void); 30 void (*edit) (void); 31 32 /* Maximum size of a group of input sections that can be handled by 33 one stub section. A value of +/-1 indicates the bfd back-end 34 should use a suitable default size. */ 35 bfd_signed_vma group_size; 36 37 /* Whether to use a special call stub for __tls_get_addr. */ 38 int tls_get_addr_opt; 39 40 /* Whether the special call stub should save r4..r12. */ 41 int no_tls_get_addr_regsave; 42 43 /* Whether to allow multiple toc sections. */ 44 int no_multi_toc; 45 46 /* Set if PLT call stubs should load r11. */ 47 int plt_static_chain; 48 49 /* Set if PLT call stubs need to be thread safe on power7+. */ 50 int plt_thread_safe; 51 52 /* Set if individual PLT call stubs should be aligned. */ 53 int plt_stub_align; 54 55 /* Set if PLT call stubs for localentry:0 functions should omit r2 save. */ 56 int plt_localentry0; 57 58 /* Whether to use power10 instructions in linkage stubs. */ 59 int power10_stubs; 60 61 /* Whether R_PPC64_PCREL_OPT should be ignored. */ 62 int no_pcrel_opt; 63 64 /* Whether to canonicalize .opd so that there are no overlapping 65 .opd entries. */ 66 int non_overlapping_opd; 67 68 /* Whether to emit symbols for stubs. */ 69 int emit_stub_syms; 70 71 /* Whether to generate out-of-line register save/restore for gcc -Os code. */ 72 int save_restore_funcs; 73 74 /* Set when a potential variable is detected in .toc. */ 75 int object_in_toc; 76 }; 77 78 bool ppc64_elf_init_stub_bfd 79 (struct bfd_link_info *, struct ppc64_elf_params *); 80 bool ppc64_elf_edit_opd 81 (struct bfd_link_info *); 82 bool ppc64_elf_inline_plt 83 (struct bfd_link_info *); 84 bool ppc64_elf_tls_setup 85 (struct bfd_link_info *); 86 bool ppc64_elf_tls_optimize 87 (struct bfd_link_info *); 88 bool ppc64_elf_edit_toc 89 (struct bfd_link_info *); 90 bool ppc64_elf_has_small_toc_reloc 91 (asection *); 92 bfd_vma ppc64_elf_set_toc 93 (struct bfd_link_info *, bfd *); 94 int ppc64_elf_setup_section_lists 95 (struct bfd_link_info *); 96 void ppc64_elf_start_multitoc_partition 97 (struct bfd_link_info *); 98 bool ppc64_elf_next_toc_section 99 (struct bfd_link_info *, asection *); 100 bool ppc64_elf_layout_multitoc 101 (struct bfd_link_info *); 102 void ppc64_elf_finish_multitoc_partition 103 (struct bfd_link_info *); 104 bool ppc64_elf_check_init_fini 105 (struct bfd_link_info *); 106 bool ppc64_elf_next_input_section 107 (struct bfd_link_info *, asection *); 108 bool ppc64_elf_size_stubs 109 (struct bfd_link_info *); 110 bool ppc64_elf_build_stubs 111 (struct bfd_link_info *, char **); 112
Indexes created Mon Mar 02 05:31:46 UTC 2026