X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gold%2Freadsyms.cc;h=5c00026a16ffca0950b3c3ce765030715be5b543;hb=4fb3aee212ad7ebb51327a61db1066303084d515;hp=649452878f600f56f4be2361b72db3984b4d76dd;hpb=029ba973354c8eb02c476d3ba8c7f555344afdce;p=deliverable%2Fbinutils-gdb.git

diff --git a/gold/readsyms.cc b/gold/readsyms.cc
index 649452878f..5c00026a16 100644
--- a/gold/readsyms.cc
+++ b/gold/readsyms.cc
@@ -1,6 +1,6 @@
 // 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.
@@ -127,7 +127,7 @@ Read_symbols::requeue(Workqueue* workqueue, Input_objects* input_objects,
 
   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
@@ -149,8 +149,10 @@ Read_symbols::is_runnable()
 // 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.
@@ -165,6 +167,93 @@ Read_symbols::run(Workqueue* workqueue)
 					    this->next_blocker_));
 }
 
+// Handle a whole lib group. Other than collecting statistics, 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, this->this_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.
 
@@ -178,6 +267,9 @@ Read_symbols::do_read_symbols(Workqueue* workqueue)
       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;
@@ -210,12 +302,6 @@ Read_symbols::do_read_symbols(Workqueue* workqueue)
 				      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);
 
@@ -246,6 +332,13 @@ Read_symbols::do_read_symbols(Workqueue* workqueue)
           // 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_,
@@ -253,7 +346,6 @@ Read_symbols::do_read_symbols(Workqueue* workqueue)
 						this->dirindex_,
 						this->mapfile_,
 						this->input_argument_,
-						this->input_group_,
                                                 obj,
 						NULL,
                                                 this->this_blocker_,
@@ -291,12 +383,6 @@ Read_symbols::do_read_symbols(Workqueue* workqueue)
       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
@@ -307,6 +393,13 @@ Read_symbols::do_read_symbols(Workqueue* workqueue)
 
       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.
 
@@ -316,7 +409,6 @@ Read_symbols::do_read_symbols(Workqueue* workqueue)
 					    this->dirindex_,
 					    this->mapfile_,
 					    this->input_argument_,
-					    this->input_group_,
 					    obj,
 					    sd,
 					    this->this_blocker_,
@@ -360,6 +452,19 @@ Read_symbols::do_group(Workqueue* workqueue)
   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)
@@ -367,25 +472,19 @@ Read_symbols::do_group(Workqueue* workqueue)
       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.
@@ -393,28 +492,48 @@ Read_symbols::do_group(Workqueue* workqueue)
 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.
@@ -461,17 +580,57 @@ Add_symbols::run(Workqueue*)
 
   if (!this->input_objects_->add_object(this->object_))
     {
+      delete this->sd_;
+      this->sd_ = NULL;
       this->object_->release();
       delete this->object_;
     }
   else
     {
+      Incremental_inputs* incremental_inputs =
+          this->layout_->incremental_inputs();
+      if (incremental_inputs != NULL)
+	incremental_inputs->report_object(this->object_, NULL);
       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.
@@ -505,7 +664,7 @@ Finish_group::locks(Task_locker* tl)
 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();
@@ -521,11 +680,20 @@ Finish_group::run(Workqueue*)
 	}
     }
 
-  // Delete all the archives now that we no longer need them.
+  // Now that we're done with the archives, record the incremental layout
+  // information, then delete them.
   for (Input_group::const_iterator p = this->input_group_->begin();
        p != this->input_group_->end();
        ++p)
-    delete *p;
+    {
+      // For an incremental link, finish recording the layout information.
+      Incremental_inputs* incremental_inputs =
+          this->layout_->incremental_inputs();
+      if (incremental_inputs != NULL)
+	incremental_inputs->report_archive_end(*p);
+
+      delete *p;
+    }
   delete this->input_group_;
 }
 
@@ -590,6 +758,8 @@ Read_script::get_name() const
   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;
 }