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* gold-threads.h (Once): Conditionalize member was_run_lock_ on
	[ENABLE_THREADS && __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4], matching
	its only use.
	* gold-threads.cc (Once::Once): Likewise conditionalize initializer.
This commit is contained in:
Roland McGrath 2013-10-11 21:02:43 +00:00
parent 9772d07483
commit 39d9ead7fb
3 changed files with 13 additions and 3 deletions
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5
gold/ChangeLog
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@ -1,5 +1,10 @@
2013-10-11 Roland McGrath <mcgrathr@google.com>
* gold-threads.h (Once): Conditionalize member was_run_lock_ on
[ENABLE_THREADS && __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4], matching
its only use.
* gold-threads.cc (Once::Once): Likewise conditionalize initializer.
* archive.h: Use struct rather than class for forward declaration
of Read_symbols_data.

7
gold/gold-threads.cc
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@ -1,6 +1,6 @@
// gold-threads.cc -- thread support for gold
// Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
// Copyright 2006, 2007, 2008, 2009, 2010, 2013 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
@ -335,7 +335,10 @@ c_run_once(void)
// Class Once.
Once::Once()
: was_run_(false), was_run_lock_(0)
: was_run_(false)
#if defined(ENABLE_THREADS) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
, was_run_lock_(0)
#endif
{
#ifndef ENABLE_THREADS
this->once_ = NULL;

4
gold/gold-threads.h
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@ -1,6 +1,6 @@
// gold-threads.h -- thread support for gold -*- C++ -*-
// Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
// Copyright 2006, 2007, 2008, 2009, 2010, 2013 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
@ -223,8 +223,10 @@ class Once
private:
// True if we have already run the function.
bool was_run_;
#if defined(ENABLE_THREADS) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
// Internal compare-and-swap lock on was_run_;
uint32_t was_run_lock_;
#endif
// The lock to run the function only once.
Once_initialize* once_;
};