2010-04-07 Doug Kwan <dougkwan@google.com>

	* arm.cc: Replace "endianity" with "endianness" in comments.
	(Arm_exidx_cantunwind): Ditto.
	(Arm_relobj::Arm_relobj): Initialize merge_flags_and_attribures.
	(Arm_relobj::merge_flags_and_attributes): New method.
	(Arm_relobj::merge_flags_and_attributes_): New data member.
	(Arm_exidx_cantunwind::do_fixed_endian_write): Fix formatting.
	(Arm_relobj::scan_sections_for_stubs): Ditto.
	(Arm_relobj::do_read_symbols): Check to see if we really want to
	merge processor-specific flags and attributes.  Exit early if
	an object is empty except for section names and the undefined symbol.
	(Target_arm::do_finalize_sections): Move check for ELF format to
	Arm_relobj::do_read_symbols.  Merge processor specific flags and
	attributes from a regular object only when we have determined that
	it is aapropriate.  Do not create an .ARM.attributes section in
	output if there is no regular input object.
	(Target_arm::merge_processor_specific_flags): Check
	--warn-mismatch before printing any error.
	(Target_arm::merge_object_attributes): Ditto.
	* gold.cc (queue_middle_tasks): Handle the case in which there is
	no regular object in input.
	* options.cc (General_options::parse_EB): New method.
	(General_options::parse_EL): Same.
	(General_options::General_options): Initialize endianness_.
	* options.h (-EB, -EL, -no-pipeline-knowledge, -p, --warn-mismatch):
	New options.
	(General_options::Endianness): New enum.
	(General_options::endianness): New method.
	(General_options::endianness_): New data member.
	* parameters.cc (Parameters::set_options): Check target endianness.
	(Parameters::set_target_once): Ditto.
	(Parameters::check_target_endianness): New method.
	(parameters_force_valid_target): If either -EL or -EB is specified,
	use it to define endianness of default target.
	* parameters.h (Parameters::check_target_endianness): New method
	declaration.
	* target.h (class Target): Change "endianity" to "endianness"
	in comments.

1 files changed, 15 insertions, 5 deletions

diff --git a/gold/gold.cc b/gold/gold.cc
index aa7689ff613..b5508aef47d 100644
--- a/gold/gold.cc
+++ b/gold/gold.cc
@@ -532,13 +532,23 @@ queue_middle_tasks(const General_options& options,
         }
     }
 
-  // If we failed to open any input files, it's possible for
-  // THIS_BLOCKER to be NULL here.  There's no real point in
-  // continuing if that happens.
   if (this_blocker == NULL)
     {
-      gold_assert(parameters->errors()->error_count() > 0);
-      gold_exit(false);
+      if (input_objects->number_of_relobjs() == 0)
+	{
+	  // If we are given only archives in input, we have no regular
+	  // objects and THIS_BLOCKER is NULL here.  Create a dummy
+	  // blocker here so that we can run the layout task immediately.
+	  this_blocker = new Task_token(true);
+	}
+      else 
+	{
+	  // If we failed to open any input files, it's possible for
+	  // THIS_BLOCKER to be NULL here.  There's no real point in
+	  // continuing if that happens.
+	  gold_assert(parameters->errors()->error_count() > 0);
+	  gold_exit(false);
+	}
     }
 
   // When all those tasks are complete, we can start laying out the