1 /* PowerPC-specific support for 64-bit ELF. 2 Copyright (C) 2003-2016 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 enum ppc_elf_plt_type 22 { 23 PLT_UNSET, 24 PLT_OLD, 25 PLT_NEW, 26 PLT_VXWORKS 27 }; 28 29 /* Various options passed from the linker to bfd backend. */ 30 struct ppc_elf_params 31 { 32 /* Chooses the type of .plt. */ 33 enum ppc_elf_plt_type plt_style; 34 35 /* Whether to emit symbols for stubs. */ 36 int emit_stub_syms; 37 38 /* Whether to emit special stub for __tls_get_addr calls. */ 39 int no_tls_get_addr_opt; 40 41 /* Insert trampolines for branches that won't reach their destination. */ 42 int branch_trampolines; 43 44 /* Avoid execution falling into new page. */ 45 int ppc476_workaround; 46 unsigned int pagesize_p2; 47 48 /* The bfd backend detected a non-PIC reference to a protected symbol 49 defined in a shared library. */ 50 int pic_fixup; 51 }; 52 53 void ppc_elf_link_params (struct bfd_link_info *, struct ppc_elf_params *); 54 int ppc_elf_select_plt_layout (bfd *, struct bfd_link_info *); 55 asection *ppc_elf_tls_setup (bfd *, struct bfd_link_info *); 56 bfd_boolean ppc_elf_tls_optimize (bfd *, struct bfd_link_info *); 57 void ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *); 58 extern bfd_boolean ppc_elf_modify_segment_map (bfd *, 59 struct bfd_link_info * ATTRIBUTE_UNUSED); 60 extern bfd_boolean ppc_elf_section_processing (bfd *, Elf_Internal_Shdr *); 61