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* descriptors.cc (Descriptors::close_all): New function.

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* descriptors.h (class Descriptors): Declare close_all.
	(close_all_descriptors): New inline function.
	* plugin.cc: Include "descriptors.h".
	(Plugin_manager::cleanup): Call close_all_descriptors.
This commit is contained in:
Ian Lance Taylor 2013-02-11 16:12:59 +00:00
parent 6fe6ded97b
commit 20e2a8aa33
4 changed files with 49 additions and 2 deletions
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8
gold/ChangeLog
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@ -1,3 +1,11 @@
2013-02-11 Ian Lance Taylor <iant@google.com>
* descriptors.cc (Descriptors::close_all): New function.
* descriptors.h (class Descriptors): Declare close_all.
(close_all_descriptors): New inline function.
* plugin.cc: Include "descriptors.h".
(Plugin_manager::cleanup): Call close_all_descriptors.
2013-02-06 Alan Modra <amodra@gmail.com>
* README: Update coding style link.

24
gold/descriptors.cc
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@ -1,6 +1,6 @@
// descriptors.cc -- manage file descriptors for gold
// Copyright 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
// Copyright 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
@ -251,6 +251,28 @@ Descriptors::close_some_descriptor()
return false;
}
// Close all the descriptors open for reading.
void
Descriptors::close_all()
{
Hold_optional_lock hl(this->lock_);
for (size_t i = 0; i < this->open_descriptors_.size(); i++)
{
Open_descriptor* pod = &this->open_descriptors_[i];
if (pod->name != NULL && !pod->inuse && !pod->is_write)
{
if (::close(i) < 0)
gold_warning(_("while closing %s: %s"), pod->name, strerror(errno));
pod->name = NULL;
pod->stack_next = -1;
pod->is_on_stack = false;
}
}
this->stack_top_ = -1;
}
// The single global variable which manages descriptors.
Descriptors descriptors;

10
gold/descriptors.h
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@ -1,6 +1,6 @@
// descriptors.h -- manage file descriptors for gold -*- C++ -*-
// Copyright 2008, 2009 Free Software Foundation, Inc.
// Copyright 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
@ -56,6 +56,10 @@ class Descriptors
void
release(int descriptor, bool permanent);
// Close all the descriptors open for reading.
void
close_all();
private:
// Information kept for a descriptor.
struct Open_descriptor
@ -104,6 +108,10 @@ inline void
release_descriptor(int descriptor, bool permanent)
{ descriptors.release(descriptor, permanent); }
inline void
close_all_descriptors()
{ descriptors.close_all(); }
} // End namespace gold.
#endif // !defined(GOLD_DESCRIPTORS_H)

9
gold/plugin.cc
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@ -71,6 +71,7 @@ dlerror(void)
#include "target.h"
#include "readsyms.h"
#include "symtab.h"
#include "descriptors.h"
#include "elfcpp.h"
namespace gold
@ -697,6 +698,14 @@ Plugin_manager::layout_deferred_objects()
void
Plugin_manager::cleanup()
{
if (this->any_added_)
{
// If any input files were added, close all the input files.
// This is because the plugin may want to remove them, and on
// Windows you are not allowed to remove an open file.
close_all_descriptors();
}
for (this->current_ = this->plugins_.begin();
this->current_ != this->plugins_.end();
++this->current_)