/* PowerPC-specific support for 64-bit ELF.
- Copyright 2003 Free Software Foundation, Inc.
+ Copyright (C) 2003-2020 Free Software Foundation, Inc.
-This file is part of BFD, the Binary File Descriptor library.
+ 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 2 of the License, or
-(at your option) any later version.
+ 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.
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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. */
+enum ppc_elf_plt_type
+{
+ PLT_UNSET,
+ PLT_OLD,
+ PLT_NEW,
+ PLT_VXWORKS
+};
+
+/* Various options passed from the linker to bfd backend. */
+struct ppc_elf_params
+{
+ /* Chooses the type of .plt. */
+ enum ppc_elf_plt_type plt_style;
+
+ /* Set if individual PLT call stubs should be aligned. */
+ int plt_stub_align;
+
+ /* Whether to emit symbols for stubs. */
+ int emit_stub_syms;
+
+ /* Whether to emit special stub for __tls_get_addr calls. */
+ int no_tls_get_addr_opt;
+
+ /* Insert trampolines for branches that won't reach their destination. */
+ int branch_trampolines;
+
+ /* Avoid execution falling into new page. */
+ int ppc476_workaround;
+ unsigned int pagesize_p2;
+
+ /* The bfd backend detected a non-PIC reference to a protected symbol
+ defined in a shared library. */
+ int pic_fixup;
+
+ /* Relocate 16A relocs as 16D and vice versa. */
+ int vle_reloc_fixup;
+
+ bfd_vma pagesize;
+};
+
+void ppc_elf_link_params (struct bfd_link_info *, struct ppc_elf_params *);
+int ppc_elf_select_plt_layout (bfd *, struct bfd_link_info *);
+bfd_boolean ppc_elf_inline_plt (struct bfd_link_info *);
asection *ppc_elf_tls_setup (bfd *, struct bfd_link_info *);
bfd_boolean ppc_elf_tls_optimize (bfd *, struct bfd_link_info *);
+void ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *);
+extern bfd_boolean ppc_elf_modify_segment_map (bfd *, struct bfd_link_info *);
+extern bfd_boolean ppc_elf_section_processing (bfd *, Elf_Internal_Shdr *);
+extern bfd_boolean ppc_finish_symbols (struct bfd_link_info *);