From 9bdafcced44e5a3994406e0a709886709b1efec8 Mon Sep 17 00:00:00 2001
From: Alexandre Oliva <aoliva@redhat.com>
Date: Tue, 22 Aug 2000 04:58:25 +0000
Subject: [PATCH] * elf32-sh.c (sh_elf_relocate_section) [R_SH_IND12W,
 R_SH_DIR8WPN, R_SH_DIR8WPZ, R_SH_DIR8WPL]: Handle them explicitly.  Improve
 validation of r_type.

---
 bfd/ChangeLog  |  6 ++++++
 bfd/elf32-sh.c | 43 ++++++++++++++++++++++---------------------
 2 files changed, 28 insertions(+), 21 deletions(-)

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 15e54dff23..4bbb6c0846 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2000-08-22  Alexandre Oliva  <aoliva@redhat.com>
+
+	* elf32-sh.c (sh_elf_relocate_section) [R_SH_IND12W,
+	R_SH_DIR8WPN, R_SH_DIR8WPZ, R_SH_DIR8WPL]: Handle them
+	explicitly.  Improve validation of r_type.
+
 2000-08-21  H.J. Lu  <hjl@gnu.org>
 
 	* elf32-i386.c (elf_i386_size_dynamic_sections): Zero out the
diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c
index f1e0027761..9e2d8237ca 100644
--- a/bfd/elf32-sh.c
+++ b/bfd/elf32-sh.c
@@ -1884,6 +1884,7 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 	continue;
 
       if (r_type < 0
+	  || r_type >= R_SH_max
 	  || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
 	      && r_type <= (int) R_SH_LAST_INVALID_RELOC))
 	{
@@ -1891,14 +1892,6 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 	  return false;
 	}
 
-      /* FIXME: This is certainly incorrect.  However, it is how the
-         COFF linker works.  */
-      if (r_type != (int) R_SH_DIR32
-	  && r_type != (int) R_SH_IND12W
-	  && r_type != (int) R_SH_LOOP_START
-	  && r_type != (int) R_SH_LOOP_END)
-	continue;
-
       howto = sh_elf_howto_table + r_type;
 
       /* This is a final link.  */
@@ -1907,11 +1900,6 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
       sec = NULL;
       if (r_symndx < symtab_hdr->sh_info)
 	{
-	  /* There is nothing to be done for an internal IND12W
-             relocation.  FIXME: This is probably wrong, but it's how
-             the COFF relocations work.  */
-	  if (r_type == (int) R_SH_IND12W)
-	    continue;
 	  sym = local_syms + r_symndx;
 	  sec = local_sections[r_symndx];
 	  relocation = (sec->output_section->vma
@@ -1944,22 +1932,34 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 	    }
 	}
 
-      /* FIXME: This is how the COFF relocations work.  */
-      if (r_type == (int) R_SH_IND12W)
-	relocation -= 4;
-
       switch ((int)r_type)
 	{
-	case (int)R_SH_DIR32:
-	  addend = rel->r_addend;
-	  /* Fall through.  */
-	default:
+	final_link_relocate:
 	  /* COFF relocs don't use the addend. The addend is used for
 	     R_SH_DIR32 to be compatible with other compilers. */
 	  r = _bfd_final_link_relocate (howto, input_bfd, input_section,
 					contents, rel->r_offset,
 					relocation, addend);
 	  break;
+
+	case R_SH_IND12W:
+	case R_SH_DIR8WPN:
+	case R_SH_DIR8WPZ:
+	case R_SH_DIR8WPL:
+	  /* These should normally be handled by the assembler, but at
+	     least IND12W is generated by ourselves, so we must deal
+	     with it.  */
+	  relocation -= 4;
+	  goto final_link_relocate;
+
+	default:
+	  bfd_set_error (bfd_error_bad_value);
+	  return false;
+
+	case R_SH_DIR32:
+	  addend = rel->r_addend;
+	  goto final_link_relocate;
+
 	case R_SH_LOOP_START:
 	  {
 	    static bfd_vma start, end;
@@ -1969,6 +1969,7 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 	    r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
 				   rel->r_offset, sec, start, end);
 	    break;
+
 	case R_SH_LOOP_END:
 	    end = (relocation + rel->r_addend
 		   - (sec->output_section->vma + sec->output_offset));