2009-03-23 Ian Lance Taylor <iant@google.com>

	* gold-threads.h (class Initialize_lock): Define.
	* gold-threads.cc (class Initialize_lock_once): Define.
	(initialize_lock_control): New static variable.
	(initialize_lock_pointer): New static variable.
	(initialize_lock_once): New static function.
	(Initialize_lock::Initialize_lock): Define.
	(Initialize_lock::initialize): Define.
	* target-select.h: Include "gold-threads.h".
	(class Target_selector): Add lock_ and initialize_lock_ fields.
	Don't define instantiate_target, just declare it.
	* target-select.cc (Target_selector::Target_selector): Initialize
	new fields.
	(Target_selector::instantiate_target): Define.
	* descriptors.h: Include "gold-threads.h".
	(class Descriptors): Add initialize_lock_ field.
	* descriptors.cc (Descriptors::Descriptors): Initialize new
	field.
	(Descriptors::open): Use initialize_lock_ field
	* errors.h (class Errors): Add initialize_lock_ field.
	* errors.cc (Errors::Errors): Initialize new field.
	(Errors::initialize_lock): Use initialize_lock_ field.
	* powerpc.cc (class Target_selector_powerpc): Remove
	instantiated_target_ field.  In do_recognize call
	instantiate_target rather than do_instantiate_target.  In
	do_instantiate_target just allocate a new target.
	* sparc.cc (class Target_selector_sparc): Likewise.

1 files changed, 3 insertions, 5 deletions

diff --git a/gold/errors.cc b/gold/errors.cc
index d45d6a58b61..618f9cd643e 100644
--- a/gold/errors.cc
+++ b/gold/errors.cc
@@ -39,8 +39,8 @@ namespace gold
 const int Errors::max_undefined_error_report;
 
 Errors::Errors(const char* program_name)
-  : program_name_(program_name), lock_(NULL), error_count_(0),
-    warning_count_(0), undefined_symbols_()
+  : program_name_(program_name), lock_(NULL), initialize_lock_(&this->lock_),
+    error_count_(0), warning_count_(0), undefined_symbols_()
 {
 }
 
@@ -53,9 +53,7 @@ Errors::Errors(const char* program_name)
 bool
 Errors::initialize_lock()
 {
-  if (this->lock_ == NULL && parameters->options_valid())
-    this->lock_ = new Lock;
-  return this->lock_ != NULL;
+  return this->initialize_lock_.initialize();
 }
 
 // Increment a counter, holding the lock if available.