gdb.dwarf2: Define and use gdb_target_symbol for symbol prefixes

[deliverable/binutils-gdb.git] / gold / gold.cc

diff --git a/gold/gold.cc b/gold/gold.cc
index dddf5ad674fc970541e485c08abd04474ecb29b1..18b06b921db5dd719016445567b0c18b8361de04 100644 (file)
--- a/gold/gold.cc
+++ b/gold/gold.cc
@@ -1,7 +1,6 @@
 // gold.cc -- main linker functions
 
-// Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012
-// Free Software Foundation, Inc.
+// Copyright (C) 2006-2015 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -502,17 +501,15 @@ queue_middle_tasks(const General_options& options,
   if (parameters->options().gc_sections())
     {
       // Find the start symbol if any.
-      Symbol* start_sym = symtab->lookup(parameters->entry());
-      if (start_sym != NULL)
-       {
-         bool is_ordinary;
-         unsigned int shndx = start_sym->shndx(&is_ordinary);
-         if (is_ordinary)
-           {
-             symtab->gc()->worklist().push(
-               Section_id(start_sym->object(), shndx));
-           }
-       }
+      Symbol* sym = symtab->lookup(parameters->entry());
+      if (sym != NULL)
+       symtab->gc_mark_symbol(sym);
+      sym = symtab->lookup(parameters->options().init());
+      if (sym != NULL && sym->is_defined() && !sym->is_from_dynobj())
+       symtab->gc_mark_symbol(sym);
+      sym = symtab->lookup(parameters->options().fini());
+      if (sym != NULL && sym->is_defined() && !sym->is_from_dynobj())
+       symtab->gc_mark_symbol(sym);
       // Symbols named with -u should not be considered garbage.
       symtab->gc_mark_undef_symbols(layout);
       gold_assert(symtab->gc() != NULL);
@@ -530,11 +527,13 @@ queue_middle_tasks(const General_options& options,
 
   // Call Object::layout for the second time to determine the
   // output_sections for all referenced input sections.  When
-  // --gc-sections or --icf is turned on, Object::layout is
-  // called twice.  It is called the first time when the
-  // symbols are added.
+  // --gc-sections or --icf is turned on, or when certain input
+  // sections have to be mapped to unique segments, Object::layout
+  // is called twice.  It is called the first time when symbols
+  // are added.
   if (parameters->options().gc_sections()
-      || parameters->options().icf_enabled())
+      || parameters->options().icf_enabled()
+      || layout->is_unique_segment_for_sections_specified())
     {
       for (Input_objects::Relobj_iterator p = input_objects->relobj_begin();
           p != input_objects->relobj_end();
@@ -553,6 +552,9 @@ queue_middle_tasks(const General_options& options,
       plugins->layout_deferred_objects();
     }
 
+  // Finalize the .eh_frame section.
+  layout->finalize_eh_frame_section();
+
   /* If plugins have specified a section order, re-arrange input sections
      according to a specified section order.  If --section-ordering-file is
      also specified, do not do anything here.  */
@@ -653,10 +655,6 @@ queue_middle_tasks(const General_options& options,
   // dynamic objects that it depends upon.
   input_objects->check_dynamic_dependencies();
 
-  // See if any of the input definitions violate the One Definition Rule.
-  // TODO: if this is too slow, do this as a task, rather than inline.
-  symtab->detect_odr_violations(task, options.output_file_name());
-
   // Do the --no-undefined-version check.
   if (!parameters->options().undefined_version())
     {
@@ -813,6 +811,8 @@ queue_final_tasks(const General_options& options,
   if (!any_postprocessing_sections)
     {
       input_sections_blocker = new Task_token(true);
+      // Write_symbols_task, Relocate_tasks.
+      input_sections_blocker->add_blocker();
       input_sections_blocker->add_blockers(input_objects->number_of_relobjs());
     }
 
@@ -841,6 +841,7 @@ queue_final_tasks(const General_options& options,
 
   // Queue a task to write out the output sections.
   workqueue->queue(new Write_sections_task(layout, of, output_sections_blocker,
+                                          input_sections_blocker,
                                           final_blocker));
 
   // Queue a task to write out everything else.
@@ -878,12 +879,28 @@ queue_final_tasks(const General_options& options,
       final_blocker = new_final_blocker;
     }
 
-  // Queue a task to close the output file.  This will be blocked by
-  // FINAL_BLOCKER.
-  workqueue->queue(new Task_function(new Close_task_runner(&options, layout,
-                                                          of),
-                                    final_blocker,
-                                    "Task_function Close_task_runner"));
+  // Create tasks for tree-style build ID computation, if necessary.
+  if (strcmp(options.build_id(), "tree") == 0)
+    {
+      // Queue a task to compute the build id.  This will be blocked by
+      // FINAL_BLOCKER, and will in turn schedule the task to close
+      // the output file.
+      workqueue->queue(new Task_function(new Build_id_task_runner(&options,
+                                                                 layout,
+                                                                 of),
+                                        final_blocker,
+                                        "Task_function Build_id_task_runner"));
+    }
+  else
+    {
+      // Queue a task to close the output file.  This will be blocked by
+      // FINAL_BLOCKER.
+      workqueue->queue(new Task_function(new Close_task_runner(&options, layout,
+                                                              of, NULL, 0),
+                                        final_blocker,
+                                        "Task_function Close_task_runner"));
+    }
+
 }
 
 } // End namespace gold.