2010-10-20 Doug Kwan <[email protected]>

	* arm.cc (Arm_relobj::do_read_symbols): Warn about ARM EXIDX sections
	without SHF_LINK_ORDER flags.
	* layout.cc (Layout::choose_output_section): Do not filter
	SHF_LINK_ORDER flag in a relocatable link.

gold/ChangeLog

@@ -1,3 +1,10 @@
+2010-10-20  Doug Kwan  <[email protected]>
+
+	* arm.cc (Arm_relobj::do_read_symbols): Warn about ARM EXIDX sections
+	without SHF_LINK_ORDER flags.
+	* layout.cc (Layout::choose_output_section): Do not filter
+	SHF_LINK_ORDER flag in a relocatable link.
+
 2010-10-17  Cary Coutant  <[email protected]>
 
 	* output.h (Output_segment::set_section_addresses): Change function

gold/arm.cc

@@ -6662,6 +6662,10 @@ Arm_relobj<big_endian>::do_read_symbols(Read_symbols_data* sd)
 						     + text_shndx * shdr_size);
 	      this->make_exidx_input_section(i, shdr, text_shndx, text_shdr);
 	    }
+	  // EHABI 4.4.1 requires that SHF_LINK_ORDER flag to be set.
+	  if ((shdr.get_sh_flags() & elfcpp::SHF_LINK_ORDER) == 0)
+	    gold_warning(_("SHF_LINK_ORDER not set in EXIDX section %s of %s"),
+			 this->section_name(i).c_str(), this->name().c_str());
 	}
     }
 

gold/layout.cc

@@ -489,11 +489,15 @@ Layout::choose_output_section(const Relobj* relobj, const char* name,
   // Some flags in the input section should not be automatically
   // copied to the output section.
   flags &= ~ (elfcpp::SHF_INFO_LINK
-	      | elfcpp::SHF_LINK_ORDER
 	      | elfcpp::SHF_GROUP
 	      | elfcpp::SHF_MERGE
 	      | elfcpp::SHF_STRINGS);
 
+  // We only clear the SHF_LINK_ORDER flag in for
+  // a non-relocatable link.
+  if (!parameters->options().relocatable())
+    flags &= ~elfcpp::SHF_LINK_ORDER;
+
   if (this->script_options_->saw_sections_clause())
     {
       // We are using a SECTIONS clause, so the output section is