[Gold Patch] Handle DW_AT_GNU_pubnames in DW_FORM_flag_present

[Sterling Augustine]

On Fri, Jul 26, 2013 at 9:42 AM, Cary Coutant <ccoutant@google.com> wrote:
> (I know you're about to send me a revised patch, but here are a few
> nits I found...)

And here it is. This integrates your comments.

Sterling

13-07-22  Sterling Augustine  <saugustine@google.com>

        * dwarf_reader.cc (Dwarf_pubnames_table::read_section):
        Convert parameter shndx to local variable. Add parameters symtab
        and symtab_size.  Scan over section names.  Find relocation
        section corresponding to current section.  Create and initialize
        reloc_mapper_ and reloc_type_.
        (Dwarf_pubnames_table::read_header):  Add assertion.  Change
        unit_length to off_t.  Initialize member unit_length_.  Fill in field
        cu_offset_.
        * dwarf_reader.h (Dwarf_pubnames_table::Dwarf_pubnames_table):
        Initialize new fields unit_length_ and cu_offset_.
        (Dwarf_pubnames_table::read_section): Update prototype.
        (Dwarf_pubnames_table::cu_offset): New member function.
        (Dwarf_pubnames_table::subsection_size): Likewise.
        (Dwarf_pubnames_table::cu_offset_, Dwarf_pubnames_table::unit_length):
        New fields.
        (Dwarf_info_reader::symtab, Dwarf_info_reader::symtab_size): Make
        member functions public.
        * gdb_index.cc (Gdb_index_info_reader::read_pubnames_and_pubtypes):
        Update comment.  Rework logic.  Move repeated parts to...
        (Gdb_index_info_reader::read_pubtable): ...here. New function.
        (Gdb_index::Gdb_index): Initialize new fields, pubnames_table_,
        pubtypes_table_, and stmt_list_offset.
        (Gdb_index::map_pubtable_to_dies, Gdb_index::find_pubname_offset,
        Gdb_index::find_pubtype_offset,
        Gdb_index::map_pubnames_and_types_to_dies): Define new functions.
        (Gdb_index::pubnames_read): Update prototype and rework logic.
        * gdb_index.h (Gdb_index_info_reader, Dwarf_pubnames_table):
        Forward declare.
        (Gdb_index::map_pubtable_to_dies, Gdb_index::find_pubname_offset,
        Gdb_index::find_pubtype_offset, Gdb_index::pubnames_table)
        Gdb_index::pubtypes_table, Gdb_index::map_pubnames_and_types_to_dies,
        Gdb_index::map_pubtable_to_dies):
        Declare functions.
        (Gdb_index::pubnames_read): Update declaration.
        (Gdb_index::Pubname_offset_map): New type.
        (Gdb_index::cu_pubname_map_, Gdb_index::cu_pubtype_map_,
        Gdb_index::pubnames_table_, Gdb_index::pubtypes_table_,
        Gdb_index::stmt_list_offset): Declare.
        (Gdb_index::pubnames_shndx_, Gdb_index::pubnames_offet_,
        Gdb_index::pubtypes_object_, Gdb_index::pubtypes_shndx_)
        Gdb_index::pubtypes_offset_): Remove.
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