From: DJ Delorie <dj@redhat.com>
Date: Tue, 12 Feb 2008 19:11:55 +0000 (+0000)
Subject: * elf32-iq2000.c (iq2000_elf_relocate_section): Adjust addend of
X-Git-Url: http://git.efficios.com/?a=commitdiff_plain;h=f15557e4abfa55bdab0a034aaf78e7de8c3c7614;p=deliverable%2Fbinutils-gdb.git

* elf32-iq2000.c (iq2000_elf_relocate_section): Adjust addend of
relocation pointing to local symbol in merged section.
* elf32-iq2000.c (iq2000_elf_relocate_offset16): New.
(iq2000_elf_relocate_section): Call it.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index a283f597d1..a8d88bd503 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,11 @@
+2008-02-12  DJ Delorie  <dj@redhat.com>
+
+	* elf32-iq2000.c (iq2000_elf_relocate_section): Adjust addend of
+	relocation pointing to local symbol in merged section.
+
+	* elf32-iq2000.c (iq2000_elf_relocate_offset16): New.
+	(iq2000_elf_relocate_section): Call it.
+
 2008-02-12  Nick Clifton  <nickc@redhat.com>
 
 	PR ld/5692
diff --git a/bfd/elf32-iq2000.c b/bfd/elf32-iq2000.c
index 2a5ad780d4..73ab8e9832 100644
--- a/bfd/elf32-iq2000.c
+++ b/bfd/elf32-iq2000.c
@@ -306,6 +306,34 @@ iq2000_elf_relocate_hi16 (bfd *input_bfd,
   return bfd_reloc_ok;
 }
 
+static bfd_reloc_status_type
+iq2000_elf_relocate_offset16 (bfd *input_bfd,
+			      Elf_Internal_Rela *rel,
+			      bfd_byte *contents,
+			      bfd_vma value,
+			      bfd_vma location)
+{
+  bfd_vma insn;
+  bfd_vma jtarget;
+
+  insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
+
+  value += rel->r_addend;
+
+  if (value & 3)
+    return bfd_reloc_dangerous;
+
+  jtarget = (value & 0x3fffc) | (location & 0xf0000000L);
+
+  if (jtarget != value)
+    return bfd_reloc_overflow;
+
+  insn = (insn & ~0xFFFF) | ((value >> 2) & 0xFFFF);
+
+  bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
+  return bfd_reloc_ok;
+}
+
 /* Map BFD reloc types to IQ2000 ELF reloc types.  */
 
 static reloc_howto_type *
@@ -572,15 +600,25 @@ iq2000_elf_relocate_section (bfd *		     output_bfd ATTRIBUTE_UNUSED,
       
       if (r_symndx < symtab_hdr->sh_info)
 	{
+	  asection *osec;
+
 	  sym = local_syms + r_symndx;
-	  sec = local_sections [r_symndx];
+	  osec = sec = local_sections [r_symndx];
+	  if ((sec->flags & SEC_MERGE)
+	      && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+	    /* This relocation is relative to a section symbol that is
+	       going to be merged.  Change it so that it is relative
+	       to the merged section symbol.  */
+	    rel->r_addend = _bfd_elf_rel_local_sym (output_bfd, sym, &sec,
+						    rel->r_addend);
+
 	  relocation = (sec->output_section->vma
 			+ sec->output_offset
 			+ sym->st_value);
 	  
 	  name = bfd_elf_string_from_elf_section
 	    (input_bfd, symtab_hdr->sh_link, sym->st_name);
-	  name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
+	  name = (name == NULL) ? bfd_section_name (input_bfd, osec) : name;
 	}
       else
 	{
@@ -615,6 +653,13 @@ iq2000_elf_relocate_section (bfd *		     output_bfd ATTRIBUTE_UNUSED,
 	  r = iq2000_elf_relocate_hi16 (input_bfd, rel, contents, relocation);
 	  break;
 
+	case R_IQ2000_OFFSET_16:
+	  r = iq2000_elf_relocate_offset16 (input_bfd, rel, contents, relocation,
+					    input_section->output_section->vma
+					    + input_section->output_offset
+					    + rel->r_offset);
+	  break;
+
 	case R_IQ2000_PC16:
 	  rel->r_addend -= 4;
 	  /* Fall through.  */