// readsyms.cc -- read input file symbols for gold
-// Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+// Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
#include "script.h"
#include "readsyms.h"
#include "plugin.h"
+#include "layout.h"
+#include "incremental.h"
namespace gold
{
workqueue->queue(new Read_symbols(input_objects, symtab, layout, dirpath,
dirindex, mapfile, input_argument,
- input_group, NULL, next_blocker));
+ input_group, NULL, NULL, next_blocker));
}
// Return whether a Read_symbols task is runnable. We can read an
// locks here.
void
-Read_symbols::locks(Task_locker*)
+Read_symbols::locks(Task_locker* tl)
{
+ if (this->member_ != NULL)
+ tl->add(this, this->next_blocker_);
}
// Run a Read_symbols task.
this->next_blocker_));
}
+// Handle a whole lib group. Other then collecting statisticts, this just
+// mimics what we do for regular object files in the command line.
+
+bool
+Read_symbols::do_whole_lib_group(Workqueue* workqueue)
+{
+ const Input_file_lib* lib_group = this->input_argument_->lib();
+
+ ++Lib_group::total_lib_groups;
+
+ Task_token* this_blocker = this->this_blocker_;
+ for (Input_file_lib::const_iterator i = lib_group->begin();
+ i != lib_group->end();
+ ++i)
+ {
+ ++Lib_group::total_members;
+ ++Lib_group::total_members_loaded;
+
+ const Input_argument* arg = &*i;
+
+ Task_token* next_blocker;
+ if (i != lib_group->end() - 1)
+ {
+ next_blocker = new Task_token(true);
+ next_blocker->add_blocker();
+ }
+ else
+ next_blocker = this->next_blocker_;
+
+ workqueue->queue_soon(new Read_symbols(this->input_objects_,
+ this->symtab_, this->layout_,
+ this->dirpath_, this->dirindex_,
+ this->mapfile_, arg, NULL,
+ NULL, this_blocker, next_blocker));
+ this_blocker = next_blocker;
+ }
+
+ return true;
+}
+
+// Handle a lib group. We set Read_symbols Tasks as usual, but have them
+// just record the symbol data instead of adding the objects. We also start
+// a Add_lib_group_symbols Task which runs after we've read all the symbols.
+// In that task we process the members in a loop until we are done.
+
+bool
+Read_symbols::do_lib_group(Workqueue* workqueue)
+{
+ const Input_file_lib* lib_group = this->input_argument_->lib();
+
+ if (lib_group->options().whole_archive())
+ return this->do_whole_lib_group(workqueue);
+
+ Lib_group* lib = new Lib_group(lib_group, this);
+
+ Add_lib_group_symbols* add_lib_group_symbols =
+ new Add_lib_group_symbols(this->symtab_, this->layout_,
+ this->input_objects_,
+ lib, this->next_blocker_);
+
+
+ Task_token* next_blocker = new Task_token(true);
+ int j = 0;
+ for (Input_file_lib::const_iterator i = lib_group->begin();
+ i != lib_group->end();
+ ++i, ++j)
+ {
+ const Input_argument* arg = &*i;
+ Archive_member* m = lib->get_member(j);
+
+ next_blocker->add_blocker();
+
+ // Since this Read_symbols will not create an Add_symbols,
+ // just pass NULL as this_blocker.
+ workqueue->queue_soon(new Read_symbols(this->input_objects_,
+ this->symtab_, this->layout_,
+ this->dirpath_, this->dirindex_,
+ this->mapfile_, arg, NULL,
+ m, NULL, next_blocker));
+ }
+
+ add_lib_group_symbols->set_blocker(next_blocker);
+ workqueue->queue_soon(add_lib_group_symbols);
+
+ return true;
+}
+
// Open the file and read the symbols. Return true if a new task was
// queued, false if that could not happen due to some error.
return true;
}
+ if (this->input_argument_->is_lib())
+ return this->do_lib_group(workqueue);
+
Input_file* input_file = new Input_file(&this->input_argument_->file());
if (!input_file->open(*this->dirpath_, this, &this->dirindex_))
return false;
{
bool is_thin_archive
= memcmp(ehdr, Archive::armagt, Archive::sarmag) == 0;
- if (is_thin_archive
+ if (is_thin_archive
|| memcmp(ehdr, Archive::armag, Archive::sarmag) == 0)
{
// This is an archive.
input_file, is_thin_archive,
this->dirpath_, this);
arch->setup();
-
+
+ if (this->layout_->incremental_inputs())
+ {
+ const Input_argument* ia = this->input_argument_;
+ this->layout_->incremental_inputs()->report_archive(ia, arch);
+ }
+
// Unlock the archive so it can be used in the next task.
arch->unlock(this);
// We are done with the file at this point, so unlock it.
obj->unlock(this);
+ if (this->member_ != NULL)
+ {
+ this->member_->sd_ = NULL;
+ this->member_->obj_ = obj;
+ return true;
+ }
+
workqueue->queue_next(new Add_symbols(this->input_objects_,
this->symtab_,
this->layout_,
this->dirindex_,
this->mapfile_,
this->input_argument_,
- this->input_group_,
obj,
NULL,
this->this_blocker_,
{
// This is an ELF object.
- bool unconfigured;
+ bool unconfigured = false;
+ bool* punconfigured = (input_file->will_search_for()
+ ? &unconfigured
+ : NULL);
Object* obj = make_elf_object(input_file->filename(),
input_file, 0, ehdr, read_size,
- &unconfigured);
+ punconfigured);
if (obj == NULL)
{
- if (unconfigured && input_file->will_search_for())
+ if (unconfigured)
{
Read_symbols::incompatible_warning(this->input_argument_,
input_file);
Read_symbols_data* sd = new Read_symbols_data;
obj->read_symbols(sd);
+ if (this->layout_->incremental_inputs())
+ {
+ const Input_argument* ia = this->input_argument_;
+ this->layout_->incremental_inputs()->report_object(ia, obj);
+ }
+
// Opening the file locked it, so now we need to unlock it. We
// need to unlock it before queuing the Add_symbols task,
// because the workqueue doesn't know about our lock on the
input_file->file().unlock(this);
+ if (this->member_ != NULL)
+ {
+ this->member_->sd_ = sd;
+ this->member_->obj_ = obj;
+ return true;
+ }
+
// We use queue_next because everything is cached for this
// task to run right away if possible.
this->dirindex_,
this->mapfile_,
this->input_argument_,
- this->input_group_,
obj,
sd,
this->this_blocker_,
const Input_file_group* group = this->input_argument_->group();
Task_token* this_blocker = this->this_blocker_;
+ Finish_group* finish_group = new Finish_group(this->input_objects_,
+ this->symtab_,
+ this->layout_,
+ this->mapfile_,
+ input_group,
+ this->next_blocker_);
+
+ Task_token* next_blocker = new Task_token(true);
+ next_blocker->add_blocker();
+ workqueue->queue_soon(new Start_group(this->symtab_, finish_group,
+ this_blocker, next_blocker));
+ this_blocker = next_blocker;
+
for (Input_file_group::const_iterator p = group->begin();
p != group->end();
++p)
const Input_argument* arg = &*p;
gold_assert(arg->is_file());
- Task_token* next_blocker = new Task_token(true);
+ next_blocker = new Task_token(true);
next_blocker->add_blocker();
workqueue->queue_soon(new Read_symbols(this->input_objects_,
this->symtab_, this->layout_,
this->dirpath_, this->dirindex_,
this->mapfile_, arg, input_group,
- this_blocker, next_blocker));
+ NULL, this_blocker, next_blocker));
this_blocker = next_blocker;
}
- const int saw_undefined = this->symtab_->saw_undefined();
- workqueue->queue_soon(new Finish_group(this->input_objects_,
- this->symtab_,
- this->layout_,
- this->mapfile_,
- input_group,
- saw_undefined,
- this_blocker,
- this->next_blocker_));
+ finish_group->set_blocker(this_blocker);
+
+ workqueue->queue_soon(finish_group);
}
// Return a debugging name for a Read_symbols task.
std::string
Read_symbols::get_name() const
{
- if (!this->input_argument_->is_group())
+ if (this->input_argument_->is_group())
+ {
+ std::string ret("Read_symbols group (");
+ bool add_space = false;
+ const Input_file_group* group = this->input_argument_->group();
+ for (Input_file_group::const_iterator p = group->begin();
+ p != group->end();
+ ++p)
+ {
+ if (add_space)
+ ret += ' ';
+ ret += p->file().name();
+ add_space = true;
+ }
+ return ret + ')';
+ }
+ else if (this->input_argument_->is_lib())
+ {
+ std::string ret("Read_symbols lib (");
+ bool add_space = false;
+ const Input_file_lib* lib = this->input_argument_->lib();
+ for (Input_file_lib::const_iterator p = lib->begin();
+ p != lib->end();
+ ++p)
+ {
+ if (add_space)
+ ret += ' ';
+ ret += p->file().name();
+ add_space = true;
+ }
+ return ret + ')';
+ }
+ else
{
std::string ret("Read_symbols ");
if (this->input_argument_->file().is_lib())
ret += "-l";
+ else if (this->input_argument_->file().is_searched_file())
+ ret += "-l:";
ret += this->input_argument_->file().name();
return ret;
}
-
- std::string ret("Read_symbols group (");
- bool add_space = false;
- const Input_file_group* group = this->input_argument_->group();
- for (Input_file_group::const_iterator p = group->begin();
- p != group->end();
- ++p)
- {
- if (add_space)
- ret += ' ';
- ret += p->file().name();
- add_space = true;
- }
- return ret + ')';
}
// Class Add_symbols.
// Add the symbols in the object to the symbol table.
void
-Add_symbols::run(Workqueue* workqueue)
+Add_symbols::run(Workqueue*)
{
Pluginobj* pluginobj = this->object_->pluginobj();
if (pluginobj != NULL)
return;
}
- // If this file has an incompatible format, try for another file
- // with the same name.
- if (this->object_->searched_for()
- && !parameters->is_compatible_target(this->object_->target()))
- {
- Read_symbols::incompatible_warning(this->input_argument_,
- this->object_->input_file());
- Read_symbols::requeue(workqueue, this->input_objects_, this->symtab_,
- this->layout_, this->dirpath_, this->dirindex_,
- this->mapfile_, this->input_argument_,
- this->input_group_, this->next_blocker_);
- this->object_->release();
- delete this->object_;
- }
- else if (!this->input_objects_->add_object(this->object_))
+ if (!this->input_objects_->add_object(this->object_))
{
+ delete this->sd_;
+ this->sd_ = NULL;
this->object_->release();
delete this->object_;
}
{
this->object_->layout(this->symtab_, this->layout_, this->sd_);
this->object_->add_symbols(this->symtab_, this->sd_, this->layout_);
+ delete this->sd_;
+ this->sd_ = NULL;
this->object_->release();
}
- delete this->sd_;
- this->sd_ = NULL;
+}
+
+// Class Start_group.
+
+Start_group::~Start_group()
+{
+ if (this->this_blocker_ != NULL)
+ delete this->this_blocker_;
+ // next_blocker_ is deleted by the task associated with the first
+ // file in the group.
+}
+
+// We need to wait for THIS_BLOCKER_ and unblock NEXT_BLOCKER_.
+
+Task_token*
+Start_group::is_runnable()
+{
+ if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
+ return this->this_blocker_;
+ return NULL;
+}
+
+void
+Start_group::locks(Task_locker* tl)
+{
+ tl->add(this, this->next_blocker_);
+}
+
+// Store the number of undefined symbols we see now.
+
+void
+Start_group::run(Workqueue*)
+{
+ this->finish_group_->set_saw_undefined(this->symtab_->saw_undefined());
}
// Class Finish_group.
void
Finish_group::run(Workqueue*)
{
- int saw_undefined = this->saw_undefined_;
+ size_t saw_undefined = this->saw_undefined_;
while (saw_undefined != this->symtab_->saw_undefined())
{
saw_undefined = this->symtab_->saw_undefined();
std::string ret("Read_script ");
if (this->input_argument_->file().is_lib())
ret += "-l";
+ else if (this->input_argument_->file().is_searched_file())
+ ret += "-l:";
ret += this->input_argument_->file().name();
return ret;
}