Re: Identical Code Folding committed to gold.

[Cary Coutant <ccoutant at google dot com>]

For the record, this patch was approved offline by Ian.

-cary


On Wed, Aug 5, 2009 at 2:03 PM, Sriraman Tallam<tmsriram@google.com> wrote:
> Hi,
>
> ? ? ?I committed the Identical Code Folding (ICF) patch to gold.
>
> Thanks,
> -Sriraman.
>
>
> 2009-08-05 ?Sriraman Tallam ?<tmsriram@google.com>
>
> ? ?* icf.cc: New file.
> ? ?* icf.h: New file.
> ? ?* Makefile.am (CCFILES): Add icf.cc.
> ? ?(HFILES): Add icf.h
> ? ?* Makefile.in: Regenerate.
> ? ?* dynobj.h (Sized_dynobj::do_section_entsize): New function.
> ? ?* gc.h (gc_process_relocs): Populate lists used by icf to contain
> ? ?section, symbol and addend information for the relocs.
> ? ?* gold.cc (queue_middle_tasks): Call identical code folding.
> ? ?* gold.h: Add defines for multimap.
> ? ?* layout.cc (Layout::create_symtab_sections): Add symtab as parameter
> ? ?to the call of finalize_local_symbols.
> ? ?* main.cc (main): Create object of class Icf.
> ? ?* object.cc (Sized_relobj::do_layout): Allow this function to be
> ? ?called twice during icf.
> ? ?(Sized_relobj::do_finalize_local_symbols): Fold symbols corresponding
> ? ?to sections marked as identical by icf.
> ? ?(Sized_relobj::do_section_flags): Get section_flags from Symbols_data
> ? ?when available.
> ? ?(Sized_relobj::do_section_entsize): New function.
> ? ?* object.h (Object::section_entsize): New function.
> ? ?(Object::do_section_entsize): New pure virtual function.
> ? ?(Relobj::finalize_local_symbols): Add new parameter.
> ? ?(Relobj::do_section_entsize): New function.
> ? ?* options.h (General_options::icf): New option.
> ? ?(General_options::icf_iterations): New option.
> ? ?(General_options::print_icf_sections): New option.
> ? ?* plugin.cc (Sized_pluginobj::do_section_entsize): New function.
> ? ?* plugin.h (Sized_pluginobj::do_section_entsize): New function.
> ? ?* reloc.cc (Read_relocs::run): Delay scanning relocs when doing
> ? ?icf.
> ? ?* symtab.cc (Symbol_table::is_section_folded): New function.
> ? ?(Symbol_table::sized_finalize_symbol): ?Fold symbols corresponding
> ? ?to sections marked as identical by icf.
> ? ?* symtab.h (Symbol_table::set_icf): New function.
> ? ?(Symbol_table::icf): New function.
> ? ?(Symbol_table::is_section_folded): New function.
> ? ?(Symbol_table::icf_): New data member.
> ? ?* target-reloc.h (relocate_section): Ignore sections folded by icf.
> ? ?* testsuite/Makefile.am: Add commands to build icf_test.
> ? ?* testsuite/Makefile.in: Regenerate.
> ? ?* testsuite/icf_test.sh: New file.
> ? ?* testsuite/icf_test.cc: New file.
>