x86-64: Improve PLT generation and synthetic PLT symbols

[deliverable/binutils-gdb.git] / bfd / ChangeLog

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index cfdb6b60bc8dc6a89ac068ab9a585927be91b724..ae7f91e7c34723be5a05539610544513b442a45f 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,70 @@
+2017-05-08  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * elf64-x86-64.c (PLT_ENTRY_SIZE): Renamed to ...
+       (LAZY_PLT_ENTRY_SIZE): This.
+       (NON_LAZY_PLT_ENTRY_SIZE): New.
+       (elf_x86_64_plt0_entry): Renamed to ...
+       (elf_x86_64_lazy_plt0_entry): This.
+       (elf_x86_64_plt_entry): Renamed to ...
+       (elf_x86_64_lazy_plt_entry): This.
+       (elf_x86_64_bnd_plt0_entry): Renamed to ...
+       (elf_x86_64_lazy_bnd_plt0_entry): This.
+       (elf_x86_64_legacy_plt_entry): Removed.
+       (elf_x86_64_bnd_plt_entry): Renamed to ...
+       (elf_x86_64_lazy_bnd_plt_entry): This.
+       (elf_x86_64_legacy_plt2_entry): Renamed to ...
+       (elf_x86_64_non_lazy_plt_entry): This.
+       (elf_x86_64_bnd_plt2_entry): Renamed to ...
+       (elf_x86_64_non_lazy_bnd_plt_entry): This.
+       (elf_x86_64_eh_frame_plt): Renamed to ...
+       (elf_x86_64_eh_frame_lazy_plt): This.
+       (elf_x86_64_eh_frame_bnd_plt): Renamed to ...
+       (elf_x86_64_eh_frame_lazy_bnd_plt): This.
+       (elf_x86_64_eh_frame_plt_got): Renamed to ...
+       (elf_x86_64_eh_frame_non_lazy_plt): This.
+       (elf_x86_64_lazy_plt_layout): New.
+       (elf_x86_64_non_lazy_plt_layout): Likewise.
+       (elf_x86_64_plt_layout): Likewise.
+       (elf_x86_64_backend_data): Remove PLT layout information.  Add
+       os for target system.
+       (GET_PLT_ENTRY_SIZE): Removed.
+       (elf_x86_64_lazy_plt): New.
+       (elf_x86_64_non_lazy_plt): Likewise.
+       (elf_x86_64_lazy_bnd_plt): Likewise.
+       (elf_x86_64_non_lazy_bnd_plt): Likewise.
+       (elf_x86-64_arch_bed): Updated.
+       (elf_x86_64_link_hash_table): Add plt, lazy_plt and non_lazy_plt.
+       (elf_x86_64_create_dynamic_sections): Removed.
+       (elf_x86_64_check_relocs): Don't check elf.dynobj.  Don't call
+       _bfd_elf_create_ifunc_sections nor _bfd_elf_create_got_section.
+       (elf_x86-64_adjust_dynamic_symbol): Updated.
+       (elf_x86_64_allocate_dynrelocs): Updated.  Pass 0 as PLT header
+       size to _bfd_elf_allocate_ifunc_dyn_relocs and don't allocate
+       size for PLT0 if there is no PLT0.  Get plt_entry_size from
+       non_lazy_plt for non-lazy PLT entries.
+       (elf_x86_64_size_dynamic_sections): Updated.  Get plt_entry_size
+       from non_lazy_plt for non-lazy PLT entries.
+       (elf_x86-64_relocate_section): Updated.  Properly get PLT index
+       if there is no PLT0.
+       (elf_x86_64_finish_dynamic_symbol): Updated.  Fill the first slot
+       in the PLT entry with generic PLT layout.  Fill the non-lazy PLT
+       entries with non-lazy PLT layout.  Don't fill the second and third
+       slots in the PLT entry if there is no PLT0.
+       (elf_x86_64_finish_dynamic_sections): Updated.  Don't fill PLT0
+       if there is no PLT0.  Set sh_entsize on the .plt.got section.
+       (compare_relocs): New.
+       (elf_x86_64_plt_type): Likewise.
+       (elf_x86_64_plt): Likewise.
+       (elf_x86_64_nacl_plt): New. Forward declaration.
+       (elf_x86_64_get_plt_sym_val): Removed.
+       (elf_x86_64_get_synthetic_symtab): Rewrite to check PLT sections
+       against all dynamic relocations.
+       (elf_x86_64_link_setup_gnu_properties): New function.
+       (elf_backend_create_dynamic_sections): Updated.
+       (elf_backend_setup_gnu_properties): New.
+       (elf_x86_64_nacl_plt): New.
+       (elf_x86_64_nacl_arch_bed): Updated.
+
 2017-05-08  H.J. Lu  <hongjiu.lu@intel.com>
 
        * elf32-i386.c (PLT_ENTRY_SIZE): Renamed to ...