Imported binutils-2.20

[msp430-binutils.git] / bfd / elf32-iq2000.c

diff --git a/bfd/elf32-iq2000.c b/bfd/elf32-iq2000.c
index 566bebded9cd173834cf22dbb8bb292a68e19b85..4dcc866e89fc41e52e693f5c65c88a071e457584 100644 (file)
--- a/bfd/elf32-iq2000.c
+++ b/bfd/elf32-iq2000.c
@@ -1,5 +1,5 @@
 /* IQ2000-specific support for 32-bit ELF.
-   Copyright (C) 2003, 2004, 2005, 2006, 2007
+   Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
@@ -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 *
@@ -424,7 +452,7 @@ iq2000_elf_check_relocs (bfd *abfd,
                         const Elf_Internal_Rela *relocs)
 {
   Elf_Internal_Shdr *symtab_hdr;
-  struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
+  struct elf_link_hash_entry **sym_hashes;
   const Elf_Internal_Rela *rel;
   const Elf_Internal_Rela *rel_end;
   bfd_boolean changed = FALSE;
@@ -434,9 +462,6 @@ iq2000_elf_check_relocs (bfd *abfd,
   
   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
   sym_hashes = elf_sym_hashes (abfd);
-  sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
-  if (!elf_bad_symtab (abfd))
-    sym_hashes_end -= symtab_hdr->sh_info;
   
   rel_end = relocs + sec->reloc_count;
   for (rel = relocs; rel < rel_end; rel++)
@@ -467,7 +492,9 @@ iq2000_elf_check_relocs (bfd *abfd,
          /* This relocation describes which C++ vtable entries
             are actually used.  Record for later use during GC.  */
        case R_IQ2000_GNU_VTENTRY:
-         if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+         BFD_ASSERT (h != NULL);
+         if (h != NULL
+             && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
            return FALSE;
          break;
 
@@ -573,15 +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
        {
@@ -616,6 +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.  */
@@ -842,7 +886,7 @@ iq2000_elf_print_private_bfd_data (bfd *abfd, void * ptr)
   _bfd_elf_print_private_bfd_data (abfd, ptr);
 
   flags = elf_elfheader (abfd)->e_flags;
-  fprintf (file, _("private flags = 0x%lx:"), (long)flags);
+  fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
 
   switch (flags & EF_IQ2000_CPU_MASK)
     {