* target-reloc.h (scan_relocs): Call scan.local for relocs

	against symbols in discarded sections.  Pass is_discarded
	param.
	* arm.cc, * i386.cc, * sparc.cc, * x86_64.cc (Target_*::Scan::local):
	Add is_discarded param.
	* powerpc (Target_powerpc::Scan::local): Likewise.  Use
	is_discarded to flag opd entry as discarded.  Don't emit dyn
	relocs on such entries.
	(Target_powerpc::Scan::global): Similarly detect and handle
	such opd entries.
	(Powerpc_relobj): Replace opd_ent_shndx_ and opd_ent_off_ with
	opd_ent_.  Update all uses.
	(Powerpc_relobj::get_opd_discard, set_opd_discard): New functions.
	(Target_powerpc::relocate_section): Zero out discarded opd
	entry relocs.

1 files changed, 18 insertions, 23 deletions

diff --git a/gold/target-reloc.h b/gold/target-reloc.h
index 96f2614..5e6dba7 100644
--- a/gold/target-reloc.h
+++ b/gold/target-reloc.h
@@ -81,30 +81,25 @@ scan_relocs(
 	  unsigned int shndx = lsym.get_st_shndx();
 	  bool is_ordinary;
 	  shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary);
-	  if (is_ordinary
-	      && shndx != elfcpp::SHN_UNDEF
-	      && !object->is_section_included(shndx)
-              && !symtab->is_section_folded(object, shndx))
-	    {
-	      // RELOC is a relocation against a local symbol in a
-	      // section we are discarding.  We can ignore this
-	      // relocation.  It will eventually become a reloc
-	      // against the value zero.
-	      //
-	      // FIXME: We should issue a warning if this is an
-	      // allocated section; is this the best place to do it?
-	      // 
-	      // FIXME: The old GNU linker would in some cases look
-	      // for the linkonce section which caused this section to
-	      // be discarded, and, if the other section was the same
-	      // size, change the reloc to refer to the other section.
-	      // That seems risky and weird to me, and I don't know of
-	      // any case where it is actually required.
-
-	      continue;
-	    }
+	  // If RELOC is a relocation against a local symbol in a
+	  // section we are discarding then we can ignore it.  It will
+	  // eventually become a reloc against the value zero.
+	  //
+	  // FIXME: We should issue a warning if this is an
+	  // allocated section; is this the best place to do it?
+	  // 
+	  // FIXME: The old GNU linker would in some cases look
+	  // for the linkonce section which caused this section to
+	  // be discarded, and, if the other section was the same
+	  // size, change the reloc to refer to the other section.
+	  // That seems risky and weird to me, and I don't know of
+	  // any case where it is actually required.
+	  bool is_discarded = (is_ordinary
+			       && shndx != elfcpp::SHN_UNDEF
+			       && !object->is_section_included(shndx)
+			       && !symtab->is_section_folded(object, shndx));
 	  scan.local(symtab, layout, target, object, data_shndx,
-		     output_section, reloc, r_type, lsym);
+		     output_section, reloc, r_type, lsym, is_discarded);
 	}
       else
 	{