[gold patch] Incremental 18/22: Linker-defined (common) symbols

[Ian Lance Taylor]

Cary Coutant <ccoutant@google.com> writes:

> 2011-04-14 Cary Coutant  <ccoutant@google.com>
>
> 	* common.cc (Symbol_table::do_allocate_commons_list): For incremental
> 	update, allocate common from bss section's free list.
> 	* incremental-dump.cc (dump_incremental_inputs): Print flag for
> 	linker-defined symbols.
> 	* incremental.cc (Sized_incremental_binary::do_process_got_plt):
> 	Skip GOT and PLT entries that are no longer referenced.
> 	(Output_section_incremental_inputs::write_info_blocks): Mark
> 	linker-defined symbols.
> 	(Sized_incr_relobj::do_add_symbols): Process linker-defined symbols.
> 	* output.cc (Output_section::allocate): New function.
> 	* output.h (Output_section::allocate): New function.
> 	* resolve.cc (Symbol_table::report_resolve_problem): Add case for
> 	linker-defined symbols.
> 	(Symbol::override_base_with_special): Copy is_predefined_ flag.
> 	* symtab.cc (Symbol::init_fields): Initialize is_predefined_ flag.
> 	(Symbol::init_base_output_data): Likewise.
> 	(Symbol::init_base_output_segment): Likewise.
> 	(Symbol::init_base_constant): Likewise.
> 	(Sized_symbol::init_output_data): Likewise.
> 	(Sized_symbol::init_output_segment): Likewise.
> 	(Sized_symbol::init_constant): Likewise.
> 	(Symbol_table::do_define_in_output_data): Likewise.
> 	(Symbol_table::do_define_in_output_segment): Likewise.
> 	(Symbol_table::do_define_as_constant): Likewise.
> 	* symtab.h (Symbol::is_predefined): New function.
> 	(Symbol::init_base_output_data): Add is_predefined parameter.
> 	(Symbol::init_base_output_segment): Likewise.
> 	(Symbol::init_base_constant): Likewise.
> 	(Symbol::is_predefined_): New data member.
> 	(Sized_symbol::init_output_data): Add is_predefined parameter.
> 	(Sized_symbol::init_output_segment): Likewise.
> 	(Sized_symbol::init_constant): Likewise.
> 	(enum Symbol_table::Defined): Add INCREMENTAL_BASE.

This is OK.

Thanks.

Ian