[GOLD] PowerPC relaxation corner case

It's possible for the section grouping code to decide that the last
section looked at (the first section by address) doesn't fit into a
group.  In one case that section is already a group owner and that is
handled correctly.  In other cases the section should be put into its
own group.  Like this:

	* powerpc.cc (Stub_control::set_output_and_owner): New function.
	(Target_powerpc::group_sections): Use it.

diff --git a/gold/ChangeLog b/gold/ChangeLog
index 141a465..a557ffb 100644 (file)
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,8 @@
+2014-11-26  Alan Modra  <amodra@gmail.com>
+
+       * powerpc.cc (Stub_control::set_output_and_owner): New function.
+       (Target_powerpc::group_sections): Use it.
+
 2014-11-25  Cary Coutant  <ccoutant@google.com>
 
        PR gold/17639

diff --git a/gold/powerpc.cc b/gold/powerpc.cc
index 4c90e38..2319789 100644 (file)
--- a/gold/powerpc.cc
+++ b/gold/powerpc.cc
@@ -2399,6 +2399,14 @@ class Stub_control
   output_section()
   { return output_section_; }
 
+  void
+  set_output_and_owner(Output_section* o,
+                      const Output_section::Input_section* i)
+  {
+    this->output_section_ = o;
+    this->owner_ = i;
+  }
+
  private:
   typedef enum
   {
@@ -2515,6 +2523,7 @@ Target_powerpc<size, big_endian>::group_sections(Layout* layout,
                {
                  stub_table->init(stub_control.owner(),
                                   stub_control.output_section());
+                 stub_control.set_output_and_owner(*o, &*i);
                  stub_table = NULL;
                }
              if (stub_table == NULL)