1 files changed, 55 insertions, 2 deletions

diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c
index 3510938..6dd0592 100644
--- a/bfd/elfxx-mips.c
+++ b/bfd/elfxx-mips.c
@@ -9324,6 +9324,55 @@ mips_elf_adjust_addend (bfd *output_bfd, struct bfd_link_info *info,
     }
 }
 
+/* Handle relocations against symbols from removed linkonce sections,
+   or sections discarded by a linker script.  We use this wrapper around
+   RELOC_AGAINST_DISCARDED_SECTION to handle triplets of compound relocs
+   on 64-bit ELF targets.  In this case for any relocation handled, which
+   always be the first in a triplet, the remaining two have to be processed
+   together with the first, even if they are R_MIPS_NONE.  It is the symbol
+   index referred by the first reloc that applies to all the three and the
+   remaining two never refer to an object symbol.  And it is the final
+   relocation (the last non-null one) that determines the output field of
+   the whole relocation so retrieve the corresponding howto structure for
+   the relocatable field to be cleared by RELOC_AGAINST_DISCARDED_SECTION.
+
+   Note that RELOC_AGAINST_DISCARDED_SECTION is a macro that uses "continue"
+   and therefore requires to be pasted in a loop.  It also defines a block
+   and does not protect any of its arguments, hence the extra brackets.  */
+
+static void
+mips_reloc_against_discarded_section (bfd *output_bfd,
+				      struct bfd_link_info *info,
+				      bfd *input_bfd, asection *input_section,
+				      Elf_Internal_Rela **rel,
+				      const Elf_Internal_Rela **relend,
+				      bfd_boolean rel_reloc,
+				      reloc_howto_type *howto,
+				      bfd_byte *contents)
+{
+  const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
+  int count = bed->s->int_rels_per_ext_rel;
+  unsigned int r_type;
+  int i;
+
+  for (i = count - 1; i > 0; i--)
+    {
+      r_type = ELF_R_TYPE (output_bfd, (*rel)[i].r_info);
+      if (r_type != R_MIPS_NONE)
+	{
+	  howto = MIPS_ELF_RTYPE_TO_HOWTO (input_bfd, r_type, !rel_reloc);
+	  break;
+	}
+    }
+  do
+    {
+       RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+					(*rel), count, (*relend),
+					howto, i, contents);
+    }
+  while (0);
+}
+
 /* Relocate a MIPS ELF section.  */
 
 bfd_boolean
@@ -9390,8 +9439,12 @@ _bfd_mips_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
 	}
 
       if (sec != NULL && discarded_section (sec))
-	RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
-					 rel, relend, howto, contents);
+	{
+	  mips_reloc_against_discarded_section (output_bfd, info, input_bfd,
+						input_section, &rel, &relend,
+						rel_reloc, howto, contents);
+	  continue;
+	}
 
       if (r_type == R_MIPS_64 && ! NEWABI_P (input_bfd))
 	{