gdb and binutils branch master updated. 93ee1e3683a12f4774b8beb4f821910982e21ce2

[amodra at sourceware dot org]

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=93ee1e3683a12f4774b8beb4f821910982e21ce2

commit 93ee1e3683a12f4774b8beb4f821910982e21ce2
Author: Alan Modra <amodra@gmail.com>
Date:   Thu Apr 24 21:59:56 2014 +0930

    PR16867, linking object with separate debug file
    
    This teaches the DWARF2 find_line functions how to deal with separate
    debug relocatable object files.  Also fixes a major bug:
    When _bfd_dwarf2_slurp_debug_info was split out, place_sections ran
    after .debug_info was relocated.  This defeated the whole purpose of
    place_sections.  See the comment I added before place_sections.
    Fixes some minor bugs too:
    - place_sections didn't set VMA for alloc but non-load sections (bss).
    - zero size sections can have symbols, so they need their VMA set too.
    - last_vma was incorrectly adjusted.
    - my last change to place_sections left VMA unchanged for .debug_info
      when the linker has mapped input to output sections, but this is
      wrong since bfd_simple_get_relocated_section_contents unmaps debug
      sections.
    
    	PR 16867
    	* dwarf2.c: Formatting.
    	(struct dwarf2_debug): Make adjusted_section_count signed.
    	(unset_sections): Make i signed.
    	(set_debug_vma): New function.
    	(place_sections): Handle separate debug object file.  Set VMA
    	on debug sections, even if they have an output section.  Also
    	set VMA on zero size sections, and non-load but alloc sections.
    	Set adjusted_section_count to -1 when no section adjustment.
    	Malloc adjusted_sections.  Don't double last_vma.  Transfer
    	alloc section VMAs to separate debug file.
    	(_bfd_dwarf2_cleanup_debug_info): Free adjusted_sections.
    	(_bfd_dwarf2_slurp_debug_info): Add do_place parameter.  Drop
    	test on symbols being the same before using old stash.  Read
    	and use separate debug file symbols.  Call place_sections.
    	(find_line): Don't call place_sections here.
    	* libbfd-in.h (_bfd_dwarf2_slurp_debug_info): Update proto.
    	* libbfd.h: Regenerate.
    	* mach-o.c (bfd_mach_o_find_nearest_line): Adjust
    	_bfd_dwarf2_slurp_debug_info call.
    	* simple.c (simple_save_output_info): Clarify comment.

-----------------------------------------------------------------------

Summary of changes:
 bfd/ChangeLog   |   24 +++++
 bfd/dwarf2.c    |  306 +++++++++++++++++++++++++++++++------------------------
 bfd/libbfd-in.h |    3 +-
 bfd/libbfd.h    |    3 +-
 bfd/mach-o.c    |    3 +-
 bfd/simple.c    |   25 +++--
 6 files changed, 217 insertions(+), 147 deletions(-)


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