patch committed: Move gold patches to 2.22 branch

[Ian Lance Taylor]

This patch moves a bunch of changes from mainline gold to the 2.22
branch.  Committed to 2.22 branch.

Ian


2011-11-02  Ian Lance Taylor  <iant@google.com>

	Copy from mainline to binutils 2.22 branch:

	2011-10-31  Cary Coutant  <ccoutant@google.com>

	PR gold/13023
	* expression.cc (Expression::eval_with_dot): Add
	is_section_dot_assignment parameter.
	(Expression::eval_maybe_dot): Likewise.  Adjust value when rhs is
	absolute and assigning to dot within a section.
	* script-sections.cc
	(Output_section_element_assignment::set_section_addresses): Pass
	dot_section to set_if_absolute.
	(Output_section_element_dot_assignment::finalize_symbols): Pass TRUE
	as is_section_dot_assignment flag to eval_with_dot.
	(Output_section_element_dot_assignment::set_section_addresses):
	Likewise.
	* script.cc (Symbol_assignment::set_if_absolute): Add dot_section
	parameter.  Also set value if relative to dot_section; set the
	symbol's output_section.
	* script.h (Expression::eval_with_dot): Add is_section_dot_assignment
	parameter.  Adjust all callers.
	(Expression::eval_maybe_dot): Likewise.
	(Symbol_assignment::set_if_absolute): Add dot_section parameter.
	Adjust all callers.
	* testsuite/script_test_2.t: Test assignment of an absolute value
	to dot within an output section element.

	2011-10-31  Cary Coutant  <ccoutant@google.com>

	* options.h (class General_options): Add --[no-]gnu-unique options.
	* symtab.cc (Symbol_table::sized_write_globals): Convert
	STB_GNU_UNIQUE to STB_GLOBAL if --no-gnu-unique.

	2011-10-31  Cary Coutant  <ccoutant@google.com>

	PR gold/13359
	* i386.cc (Target_i386::Relocate::relocate_tls): Remove
	unnecessary assertion.
	* x86_64.cc (Target_x86_64::Relocate::relocate_tls): Likewise.

	2011-10-31 Sriraman Tallam  <tmsriram@google.com>

	* symtab.h (Symbol_table::gc_mark_symbol_for_shlib): Rename to
	gc_mark_symbol.
	* symtab.cc (Symbol_table::gc_mark_symbol_for_shlib): Rename to
	gc_mark_symbol.
	Change to just keep the section associated with symbol.
	(Symbol_table::add_from_relobj): Mark symbols as not garbage when
	they are externally visible and --export-dynamic is turned on.
	(Symbol_table::gc_mark_dyn_syms): Call gc_mark_symbol.

	2011-10-19  Ian Lance Taylor  <iant@google.com>

	PR gold/13163
	* script-sections.cc
	(Output_section_element_dot_assignment::needs_output_section): New
	function.

	2011-10-19  Ian Lance Taylor  <iant@google.com>

	PR gold/13204
	* layout.cc (Layout::segment_precedes): Don't assert failure if a
	--section-start option was seen.
	* options.h (General_options::any_section_start): New function.

	2011-10-18  Cary Coutant  <ccoutant@google.com>

	* output.cc (posix_fallocate): Return 0 on success, errno on failure.
	(Output_file::map_no_anonymous): Check for non-zero
	return code from posix_fallocate.

	2011-10-17  Cary Coutant  <ccoutant@google.com>

	PR gold/13245
	* plugin.cc (is_visible_from_outside): Check for symbols
	referenced from dynamic objects.
	* resolve.cc (Symbol_table::resolve): Don't count references
	from dynamic objects as references from real ELF files.
	* testsuite/plugin_test_2.sh: Adjust expected result.

	2011-10-17  Cary Coutant  <ccoutant@google.com>

	* readsyms.cc (Read_symbols::run): Don't queue an unblocker
	task for members of lib groups.

	2011-10-17  Cary Coutant  <ccoutant@google.com>

	PR gold/13288
	* fileread.cc (File_read::find_view): Add assert.
	(File_read::make_view): Move bounds check (replace with assert)...
	(File_read::find_or_make_view): ... to here.

	2011-10-12  Cary Coutant  <ccoutant@google.com>

	* output.cc (Output_file::open_base_file): Handle case where
	::read returns less than requested size.

	2011-10-10  Cary Coutant  <ccoutant@google.com>

	* incremental.cc (Sized_relobj_incr::Sized_relobj_incr):
	Initialize defined_count_.
	(Sized_relobj_incr::do_add_symbols): Count defined symbols.
	(Sized_relobj_incr::do_get_global_symbol_counts): Rewrite.
	(Sized_incr_dynobj::Sized_incr_dynobj): Initialize defined_count_.
	(Sized_incr_dynobj::do_add_symbols): Count defined symbols.
	(Sized_incr_dynobj::do_get_global_symbol_counts): Rewrite.
	* incremental.h (Sized_relobj_incr::defined_count_): New data
	member.
	(Sized_incr_dynobj::defined_count_): New data member.
	* plugin.cc (Sized_pluginobj::do_get_global_symbol_counts):
	Return zeroes instead of internal error.

	2011-10-10  Cary Coutant  <ccoutant@google.com>

	PR gold/13249
	* output.cc (Output_reloc::Output_reloc): Add use_plt_offset flag.
	(Output_reloc::symbol_value): Return PLT offset if flag is set.
	* output.h (class Output_reloc): Add use_plt_offset flag.
	(Output_reloc::type_): Adjust size of bit field.
	(Output_reloc::use_plt_offset_): New bit field.
	(class Output_data_reloc): Adjust all calls to Output_reloc_type.
	(Output_data_reloc::add_local_relative): (RELA only) Add use_plt_offset
	flag.  Adjust all callers.
	* x86_64.cc (Target_x86_64::Scan::local): Check for IFUNC when
	creating RELATIVE relocations.

	2011-10-03   Diego Novillo  <dnovillo@google.com>

	* options.cc (parse_uint): Fix dereference of RETVAL.

	2011-09-29  Cary Coutant  <ccoutant@google.com>

	* incremental.cc (Sized_incremental_binary::do_process_got_plt):
	Check for NULL.
	* symtab.cc (Symbol_table::add_from_relobj): Ignore version
	symbols during incremental update.
	(Symbol_table::add_from_dynobj): Likewise.

	2011-09-26  Cary Coutant  <ccoutant@google.com>

	* gold.cc (queue_initial_tasks): Move option checks ...
	* options.cc (General_options::finalize): ... to here. Disable
	some options; make others fatal.

	2011-09-23  Simon Baldwin  <simonb@google.com>

	* configure.ac: Add new --with-gold-ldadd and --with-gold-ldflags
	configuration options.
	* configure: Regenerate.
	* Makefile.am: Handle GOLD_LDADD and GOLD_LDFLAGS.
	* Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.


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