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revision 20 by monamour, Thu Dec 4 05:12:56 2008 UTC revision 21 by monamour, Mon Jul 27 20:34:36 2009 UTC
# Line 1  Line 1 
1  /* Common code for PA ELF implementations.  /* Common code for PA ELF implementations.
2     Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008     Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
3     Free Software Foundation, Inc.     Free Software Foundation, Inc.
4    
5     This file is part of BFD, the Binary File Descriptor library.     This file is part of BFD, the Binary File Descriptor library.
# Line 1218  elf_hppa_action_discarded (asection *sec Line 1218  elf_hppa_action_discarded (asection *sec
1218    
1219    return _bfd_elf_default_action_discarded (sec);    return _bfd_elf_default_action_discarded (sec);
1220  }  }
   
 #if ARCH_SIZE == 64  
 /* Hook called by the linker routine which adds symbols from an object  
    file.  HP's libraries define symbols with HP specific section  
    indices, which we have to handle.  */  
   
 static bfd_boolean  
 elf_hppa_add_symbol_hook (bfd *abfd,  
                           struct bfd_link_info *info ATTRIBUTE_UNUSED,  
                           Elf_Internal_Sym *sym,  
                           const char **namep ATTRIBUTE_UNUSED,  
                           flagword *flagsp ATTRIBUTE_UNUSED,  
                           asection **secp,  
                           bfd_vma *valp)  
 {  
   unsigned int index = sym->st_shndx;  
   
   switch (index)  
     {  
     case SHN_PARISC_ANSI_COMMON:  
       *secp = bfd_make_section_old_way (abfd, ".PARISC.ansi.common");  
       (*secp)->flags |= SEC_IS_COMMON;  
       *valp = sym->st_size;  
       break;  
   
     case SHN_PARISC_HUGE_COMMON:  
       *secp = bfd_make_section_old_way (abfd, ".PARISC.huge.common");  
       (*secp)->flags |= SEC_IS_COMMON;  
       *valp = sym->st_size;  
       break;  
     }  
   
   return TRUE;  
 }  
   
 static bfd_boolean  
 elf_hppa_unmark_useless_dynamic_symbols (struct elf_link_hash_entry *h,  
                                          void *data)  
 {  
   struct bfd_link_info *info = data;  
   
   if (h->root.type == bfd_link_hash_warning)  
     h = (struct elf_link_hash_entry *) h->root.u.i.link;  
   
   /* If we are not creating a shared library, and this symbol is  
      referenced by a shared library but is not defined anywhere, then  
      the generic code will warn that it is undefined.  
   
      This behavior is undesirable on HPs since the standard shared  
      libraries contain references to undefined symbols.  
   
      So we twiddle the flags associated with such symbols so that they  
      will not trigger the warning.  ?!? FIXME.  This is horribly fragile.  
   
      Ultimately we should have better controls over the generic ELF BFD  
      linker code.  */  
   if (! info->relocatable  
       && info->unresolved_syms_in_shared_libs != RM_IGNORE  
       && h->root.type == bfd_link_hash_undefined  
       && h->ref_dynamic  
       && !h->ref_regular)  
     {  
       h->ref_dynamic = 0;  
       h->pointer_equality_needed = 1;  
     }  
   
   return TRUE;  
 }  
   
 static bfd_boolean  
 elf_hppa_remark_useless_dynamic_symbols (struct elf_link_hash_entry *h,  
                                          void *data)  
 {  
   struct bfd_link_info *info = data;  
   
   if (h->root.type == bfd_link_hash_warning)  
     h = (struct elf_link_hash_entry *) h->root.u.i.link;  
   
   /* If we are not creating a shared library, and this symbol is  
      referenced by a shared library but is not defined anywhere, then  
      the generic code will warn that it is undefined.  
   
      This behavior is undesirable on HPs since the standard shared  
      libraries contain references to undefined symbols.  
   
      So we twiddle the flags associated with such symbols so that they  
      will not trigger the warning.  ?!? FIXME.  This is horribly fragile.  
   
      Ultimately we should have better controls over the generic ELF BFD  
      linker code.  */  
   if (! info->relocatable  
       && info->unresolved_syms_in_shared_libs != RM_IGNORE  
       && h->root.type == bfd_link_hash_undefined  
       && !h->ref_dynamic  
       && !h->ref_regular  
       && h->pointer_equality_needed)  
     {  
       h->ref_dynamic = 1;  
       h->pointer_equality_needed = 0;  
     }  
   
   return TRUE;  
 }  
   
 static bfd_boolean  
 elf_hppa_is_dynamic_loader_symbol (const char *name)  
 {  
   return (! strcmp (name, "__CPU_REVISION")  
           || ! strcmp (name, "__CPU_KEYBITS_1")  
           || ! strcmp (name, "__SYSTEM_ID_D")  
           || ! strcmp (name, "__FPU_MODEL")  
           || ! strcmp (name, "__FPU_REVISION")  
           || ! strcmp (name, "__ARGC")  
           || ! strcmp (name, "__ARGV")  
           || ! strcmp (name, "__ENVP")  
           || ! strcmp (name, "__TLS_SIZE_D")  
           || ! strcmp (name, "__LOAD_INFO")  
           || ! strcmp (name, "__systab"));  
 }  
   
 /* Record the lowest address for the data and text segments.  */  
 static void  
 elf_hppa_record_segment_addrs (bfd *abfd,  
                                asection *section,  
                                void *data)  
 {  
   struct elf64_hppa_link_hash_table *hppa_info = data;  
   
   if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))  
     {  
       bfd_vma value;  
       Elf_Internal_Phdr *p;  
   
       p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);  
       BFD_ASSERT (p != NULL);  
       value = p->p_vaddr;  
   
       if (section->flags & SEC_READONLY)  
         {  
           if (value < hppa_info->text_segment_base)  
             hppa_info->text_segment_base = value;  
         }  
       else  
         {  
           if (value < hppa_info->data_segment_base)  
             hppa_info->data_segment_base = value;  
         }  
     }  
 }  
   
 /* Called after we have seen all the input files/sections, but before  
    final symbol resolution and section placement has been determined.  
   
    We use this hook to (possibly) provide a value for __gp, then we  
    fall back to the generic ELF final link routine.  */  
   
 static bfd_boolean  
 elf_hppa_final_link (bfd *abfd, struct bfd_link_info *info)  
 {  
   bfd_boolean retval;  
   struct elf64_hppa_link_hash_table *hppa_info = elf64_hppa_hash_table (info);  
   
   if (! info->relocatable)  
     {  
       struct elf_link_hash_entry *gp;  
       bfd_vma gp_val;  
   
       /* The linker script defines a value for __gp iff it was referenced  
          by one of the objects being linked.  First try to find the symbol  
          in the hash table.  If that fails, just compute the value __gp  
          should have had.  */  
       gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,  
                                  FALSE, FALSE);  
   
       if (gp)  
         {  
   
           /* Adjust the value of __gp as we may want to slide it into the  
              .plt section so that the stubs can access PLT entries without  
              using an addil sequence.  */  
           gp->root.u.def.value += hppa_info->gp_offset;  
   
           gp_val = (gp->root.u.def.section->output_section->vma  
                     + gp->root.u.def.section->output_offset  
                     + gp->root.u.def.value);  
         }  
       else  
         {  
           asection *sec;  
   
           /* First look for a .plt section.  If found, then __gp is the  
              address of the .plt + gp_offset.  
   
              If no .plt is found, then look for .dlt, .opd and .data (in  
              that order) and set __gp to the base address of whichever  
              section is found first.  */  
   
           sec = hppa_info->plt_sec;  
           if (sec && ! (sec->flags & SEC_EXCLUDE))  
             gp_val = (sec->output_offset  
                       + sec->output_section->vma  
                       + hppa_info->gp_offset);  
           else  
             {  
               sec = hppa_info->dlt_sec;  
               if (!sec || (sec->flags & SEC_EXCLUDE))  
                 sec = hppa_info->opd_sec;  
               if (!sec || (sec->flags & SEC_EXCLUDE))  
                 sec = bfd_get_section_by_name (abfd, ".data");  
               if (!sec || (sec->flags & SEC_EXCLUDE))  
                 gp_val = 0;  
               else  
                 gp_val = sec->output_offset + sec->output_section->vma;  
             }  
         }  
   
       /* Install whatever value we found/computed for __gp.  */  
       _bfd_set_gp_value (abfd, gp_val);  
     }  
   
   /* We need to know the base of the text and data segments so that we  
      can perform SEGREL relocations.  We will record the base addresses  
      when we encounter the first SEGREL relocation.  */  
   hppa_info->text_segment_base = (bfd_vma)-1;  
   hppa_info->data_segment_base = (bfd_vma)-1;  
   
   /* HP's shared libraries have references to symbols that are not  
      defined anywhere.  The generic ELF BFD linker code will complain  
      about such symbols.  
   
      So we detect the losing case and arrange for the flags on the symbol  
      to indicate that it was never referenced.  This keeps the generic  
      ELF BFD link code happy and appears to not create any secondary  
      problems.  Ultimately we need a way to control the behavior of the  
      generic ELF BFD link code better.  */  
   elf_link_hash_traverse (elf_hash_table (info),  
                           elf_hppa_unmark_useless_dynamic_symbols,  
                           info);  
   
   /* Invoke the regular ELF backend linker to do all the work.  */  
   retval = bfd_elf_final_link (abfd, info);  
   
   elf_link_hash_traverse (elf_hash_table (info),  
                           elf_hppa_remark_useless_dynamic_symbols,  
                           info);  
   
   /* If we're producing a final executable, sort the contents of the  
      unwind section. */  
   if (retval)  
     retval = elf_hppa_sort_unwind (abfd);  
   
   return retval;  
 }  
   
 /* Relocate the given INSN.  VALUE should be the actual value we want  
    to insert into the instruction, ie by this point we should not be  
    concerned with computing an offset relative to the DLT, PC, etc.  
    Instead this routine is meant to handle the bit manipulations needed  
    to insert the relocation into the given instruction.  */  
   
 static int  
 elf_hppa_relocate_insn (int insn, int sym_value, unsigned int r_type)  
 {  
   switch (r_type)  
     {  
     /* This is any 22 bit branch.  In PA2.0 syntax it corresponds to  
        the "B" instruction.  */  
     case R_PARISC_PCREL22F:  
     case R_PARISC_PCREL22C:  
       return (insn & ~0x3ff1ffd) | re_assemble_22 (sym_value);  
   
       /* This is any 12 bit branch.  */  
     case R_PARISC_PCREL12F:  
       return (insn & ~0x1ffd) | re_assemble_12 (sym_value);  
   
     /* This is any 17 bit branch.  In PA2.0 syntax it also corresponds  
        to the "B" instruction as well as BE.  */  
     case R_PARISC_PCREL17F:  
     case R_PARISC_DIR17F:  
     case R_PARISC_DIR17R:  
     case R_PARISC_PCREL17C:  
     case R_PARISC_PCREL17R:  
       return (insn & ~0x1f1ffd) | re_assemble_17 (sym_value);  
   
     /* ADDIL or LDIL instructions.  */  
     case R_PARISC_DLTREL21L:  
     case R_PARISC_DLTIND21L:  
     case R_PARISC_LTOFF_FPTR21L:  
     case R_PARISC_PCREL21L:  
     case R_PARISC_LTOFF_TP21L:  
     case R_PARISC_DPREL21L:  
     case R_PARISC_PLTOFF21L:  
     case R_PARISC_DIR21L:  
       return (insn & ~0x1fffff) | re_assemble_21 (sym_value);  
   
     /* LDO and integer loads/stores with 14 bit displacements.  */  
     case R_PARISC_DLTREL14R:  
     case R_PARISC_DLTREL14F:  
     case R_PARISC_DLTIND14R:  
     case R_PARISC_DLTIND14F:  
     case R_PARISC_LTOFF_FPTR14R:  
     case R_PARISC_PCREL14R:  
     case R_PARISC_PCREL14F:  
     case R_PARISC_LTOFF_TP14R:  
     case R_PARISC_LTOFF_TP14F:  
     case R_PARISC_DPREL14R:  
     case R_PARISC_DPREL14F:  
     case R_PARISC_PLTOFF14R:  
     case R_PARISC_PLTOFF14F:  
     case R_PARISC_DIR14R:  
     case R_PARISC_DIR14F:  
       return (insn & ~0x3fff) | low_sign_unext (sym_value, 14);  
   
     /* PA2.0W LDO and integer loads/stores with 16 bit displacements.  */  
     case R_PARISC_LTOFF_FPTR16F:  
     case R_PARISC_PCREL16F:  
     case R_PARISC_LTOFF_TP16F:  
     case R_PARISC_GPREL16F:  
     case R_PARISC_PLTOFF16F:  
     case R_PARISC_DIR16F:  
     case R_PARISC_LTOFF16F:  
       return (insn & ~0xffff) | re_assemble_16 (sym_value);  
   
     /* Doubleword loads and stores with a 14 bit displacement.  */  
     case R_PARISC_DLTREL14DR:  
     case R_PARISC_DLTIND14DR:  
     case R_PARISC_LTOFF_FPTR14DR:  
     case R_PARISC_LTOFF_FPTR16DF:  
     case R_PARISC_PCREL14DR:  
     case R_PARISC_PCREL16DF:  
     case R_PARISC_LTOFF_TP14DR:  
     case R_PARISC_LTOFF_TP16DF:  
     case R_PARISC_DPREL14DR:  
     case R_PARISC_GPREL16DF:  
     case R_PARISC_PLTOFF14DR:  
     case R_PARISC_PLTOFF16DF:  
     case R_PARISC_DIR14DR:  
     case R_PARISC_DIR16DF:  
     case R_PARISC_LTOFF16DF:  
       return (insn & ~0x3ff1) | (((sym_value & 0x2000) >> 13)  
                                  | ((sym_value & 0x1ff8) << 1));  
   
     /* Floating point single word load/store instructions.  */  
     case R_PARISC_DLTREL14WR:  
     case R_PARISC_DLTIND14WR:  
     case R_PARISC_LTOFF_FPTR14WR:  
     case R_PARISC_LTOFF_FPTR16WF:  
     case R_PARISC_PCREL14WR:  
     case R_PARISC_PCREL16WF:  
     case R_PARISC_LTOFF_TP14WR:  
     case R_PARISC_LTOFF_TP16WF:  
     case R_PARISC_DPREL14WR:  
     case R_PARISC_GPREL16WF:  
     case R_PARISC_PLTOFF14WR:  
     case R_PARISC_PLTOFF16WF:  
     case R_PARISC_DIR16WF:  
     case R_PARISC_DIR14WR:  
     case R_PARISC_LTOFF16WF:  
       return (insn & ~0x3ff9) | (((sym_value & 0x2000) >> 13)  
                                  | ((sym_value & 0x1ffc) << 1));  
   
     default:  
       return insn;  
     }  
 }  
   
 /* Compute the value for a relocation (REL) during a final link stage,  
    then insert the value into the proper location in CONTENTS.  
   
    VALUE is a tentative value for the relocation and may be overridden  
    and modified here based on the specific relocation to be performed.  
   
    For example we do conversions for PC-relative branches in this routine  
    or redirection of calls to external routines to stubs.  
   
    The work of actually applying the relocation is left to a helper  
    routine in an attempt to reduce the complexity and size of this  
    function.  */  
   
 static bfd_reloc_status_type  
 elf_hppa_final_link_relocate (Elf_Internal_Rela *rel,  
                               bfd *input_bfd,  
                               bfd *output_bfd,  
                               asection *input_section,  
                               bfd_byte *contents,  
                               bfd_vma value,  
                               struct bfd_link_info *info,  
                               asection *sym_sec,  
                               struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,  
                               struct elf64_hppa_dyn_hash_entry *dyn_h)  
 {  
   int insn;  
   bfd_vma offset = rel->r_offset;  
   bfd_signed_vma addend = rel->r_addend;  
   reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info);  
   unsigned int r_type = howto->type;  
   bfd_byte *hit_data = contents + offset;  
   struct elf64_hppa_link_hash_table *hppa_info = elf64_hppa_hash_table (info);  
   
   insn = bfd_get_32 (input_bfd, hit_data);  
   
   switch (r_type)  
     {  
     case R_PARISC_NONE:  
       break;  
   
     /* Basic function call support.  
   
        Note for a call to a function defined in another dynamic library  
        we want to redirect the call to a stub.  */  
   
     /* Random PC relative relocs.  */  
     case R_PARISC_PCREL21L:  
     case R_PARISC_PCREL14R:  
     case R_PARISC_PCREL14F:  
     case R_PARISC_PCREL14WR:  
     case R_PARISC_PCREL14DR:  
     case R_PARISC_PCREL16F:  
     case R_PARISC_PCREL16WF:  
     case R_PARISC_PCREL16DF:  
       {  
         /* If this is a call to a function defined in another dynamic  
            library, then redirect the call to the local stub for this  
            function.  */  
         if (sym_sec == NULL || sym_sec->output_section == NULL)  
           value = (dyn_h->stub_offset + hppa_info->stub_sec->output_offset  
                    + hppa_info->stub_sec->output_section->vma);  
   
         /* Turn VALUE into a proper PC relative address.  */  
         value -= (offset + input_section->output_offset  
                   + input_section->output_section->vma);  
   
         /* Adjust for any field selectors.  */  
         if (r_type == R_PARISC_PCREL21L)  
           value = hppa_field_adjust (value, -8 + addend, e_lsel);  
         else if (r_type == R_PARISC_PCREL14F  
                  || r_type == R_PARISC_PCREL16F  
                  || r_type == R_PARISC_PCREL16WF  
                  || r_type == R_PARISC_PCREL16DF)  
           value = hppa_field_adjust (value, -8 + addend, e_fsel);  
         else  
           value = hppa_field_adjust (value, -8 + addend, e_rsel);  
   
         /* Apply the relocation to the given instruction.  */  
         insn = elf_hppa_relocate_insn (insn, (int) value, r_type);  
         break;  
       }  
   
     case R_PARISC_PCREL12F:  
     case R_PARISC_PCREL22F:  
     case R_PARISC_PCREL17F:  
     case R_PARISC_PCREL22C:  
     case R_PARISC_PCREL17C:  
     case R_PARISC_PCREL17R:  
       {  
         /* If this is a call to a function defined in another dynamic  
            library, then redirect the call to the local stub for this  
            function.  */  
         if (sym_sec == NULL || sym_sec->output_section == NULL)  
           value = (dyn_h->stub_offset + hppa_info->stub_sec->output_offset  
                    + hppa_info->stub_sec->output_section->vma);  
   
         /* Turn VALUE into a proper PC relative address.  */  
         value -= (offset + input_section->output_offset  
                   + input_section->output_section->vma);  
   
         /* Adjust for any field selectors.  */  
         if (r_type == R_PARISC_PCREL17R)  
           value = hppa_field_adjust (value, -8 + addend, e_rsel);  
         else  
           value = hppa_field_adjust (value, -8 + addend, e_fsel);  
   
         /* All branches are implicitly shifted by 2 places.  */  
         value >>= 2;  
   
         /* Apply the relocation to the given instruction.  */  
         insn = elf_hppa_relocate_insn (insn, (int) value, r_type);  
         break;  
       }  
   
     /* Indirect references to data through the DLT.  */  
     case R_PARISC_DLTIND14R:  
     case R_PARISC_DLTIND14F:  
     case R_PARISC_DLTIND14DR:  
     case R_PARISC_DLTIND14WR:  
     case R_PARISC_DLTIND21L:  
     case R_PARISC_LTOFF_FPTR14R:  
     case R_PARISC_LTOFF_FPTR14DR:  
     case R_PARISC_LTOFF_FPTR14WR:  
     case R_PARISC_LTOFF_FPTR21L:  
     case R_PARISC_LTOFF_FPTR16F:  
     case R_PARISC_LTOFF_FPTR16WF:  
     case R_PARISC_LTOFF_FPTR16DF:  
     case R_PARISC_LTOFF_TP21L:  
     case R_PARISC_LTOFF_TP14R:  
     case R_PARISC_LTOFF_TP14F:  
     case R_PARISC_LTOFF_TP14WR:  
     case R_PARISC_LTOFF_TP14DR:  
     case R_PARISC_LTOFF_TP16F:  
     case R_PARISC_LTOFF_TP16WF:  
     case R_PARISC_LTOFF_TP16DF:  
     case R_PARISC_LTOFF16F:  
     case R_PARISC_LTOFF16WF:  
     case R_PARISC_LTOFF16DF:  
       {  
         /* If this relocation was against a local symbol, then we still  
            have not set up the DLT entry (it's not convenient to do so  
            in the "finalize_dlt" routine because it is difficult to get  
            to the local symbol's value).  
   
            So, if this is a local symbol (h == NULL), then we need to  
            fill in its DLT entry.  
   
            Similarly we may still need to set up an entry in .opd for  
            a local function which had its address taken.  */  
         if (dyn_h->h == NULL)  
           {  
             /* Now do .opd creation if needed.  */  
             if (r_type == R_PARISC_LTOFF_FPTR14R  
                 || r_type == R_PARISC_LTOFF_FPTR14DR  
                 || r_type == R_PARISC_LTOFF_FPTR14WR  
                 || r_type == R_PARISC_LTOFF_FPTR21L  
                 || r_type == R_PARISC_LTOFF_FPTR16F  
                 || r_type == R_PARISC_LTOFF_FPTR16WF  
                 || r_type == R_PARISC_LTOFF_FPTR16DF)  
               {  
                 /* The first two words of an .opd entry are zero.  */  
                 memset (hppa_info->opd_sec->contents + dyn_h->opd_offset,  
                         0, 16);  
   
                 /* The next word is the address of the function.  */  
                 bfd_put_64 (hppa_info->opd_sec->owner, value + addend,  
                             (hppa_info->opd_sec->contents  
                              + dyn_h->opd_offset + 16));  
   
                 /* The last word is our local __gp value.  */  
                 value = _bfd_get_gp_value  
                           (hppa_info->opd_sec->output_section->owner);  
                 bfd_put_64 (hppa_info->opd_sec->owner, value,  
                             (hppa_info->opd_sec->contents  
                              + dyn_h->opd_offset + 24));  
   
                 /* The DLT value is the address of the .opd entry.  */  
                 value = (dyn_h->opd_offset  
                          + hppa_info->opd_sec->output_offset  
                          + hppa_info->opd_sec->output_section->vma);  
                 addend = 0;  
               }  
   
             bfd_put_64 (hppa_info->dlt_sec->owner,  
                         value + addend,  
                         hppa_info->dlt_sec->contents + dyn_h->dlt_offset);  
           }  
   
         /* We want the value of the DLT offset for this symbol, not  
            the symbol's actual address.  Note that __gp may not point  
            to the start of the DLT, so we have to compute the absolute  
            address, then subtract out the value of __gp.  */  
         value = (dyn_h->dlt_offset  
                  + hppa_info->dlt_sec->output_offset  
                  + hppa_info->dlt_sec->output_section->vma);  
         value -= _bfd_get_gp_value (output_bfd);  
   
         /* All DLTIND relocations are basically the same at this point,  
            except that we need different field selectors for the 21bit  
            version vs the 14bit versions.  */  
         if (r_type == R_PARISC_DLTIND21L  
             || r_type == R_PARISC_LTOFF_FPTR21L  
             || r_type == R_PARISC_LTOFF_TP21L)  
           value = hppa_field_adjust (value, 0, e_lsel);  
         else if (r_type == R_PARISC_DLTIND14F  
                  || r_type == R_PARISC_LTOFF_FPTR16F  
                  || r_type == R_PARISC_LTOFF_FPTR16WF  
                  || r_type == R_PARISC_LTOFF_FPTR16DF  
                  || r_type == R_PARISC_LTOFF16F  
                  || r_type == R_PARISC_LTOFF16DF  
                  || r_type == R_PARISC_LTOFF16WF  
                  || r_type == R_PARISC_LTOFF_TP16F  
                  || r_type == R_PARISC_LTOFF_TP16WF  
                  || r_type == R_PARISC_LTOFF_TP16DF)  
           value = hppa_field_adjust (value, 0, e_fsel);  
         else  
           value = hppa_field_adjust (value, 0, e_rsel);  
   
         insn = elf_hppa_relocate_insn (insn, (int) value, r_type);  
         break;  
       }  
   
     case R_PARISC_DLTREL14R:  
     case R_PARISC_DLTREL14F:  
     case R_PARISC_DLTREL14DR:  
     case R_PARISC_DLTREL14WR:  
     case R_PARISC_DLTREL21L:  
     case R_PARISC_DPREL21L:  
     case R_PARISC_DPREL14WR:  
     case R_PARISC_DPREL14DR:  
     case R_PARISC_DPREL14R:  
     case R_PARISC_DPREL14F:  
     case R_PARISC_GPREL16F:  
     case R_PARISC_GPREL16WF:  
     case R_PARISC_GPREL16DF:  
       {  
         /* Subtract out the global pointer value to make value a DLT  
            relative address.  */  
         value -= _bfd_get_gp_value (output_bfd);  
   
         /* All DLTREL relocations are basically the same at this point,  
            except that we need different field selectors for the 21bit  
            version vs the 14bit versions.  */  
         if (r_type == R_PARISC_DLTREL21L  
             || r_type == R_PARISC_DPREL21L)  
           value = hppa_field_adjust (value, addend, e_lrsel);  
         else if (r_type == R_PARISC_DLTREL14F  
                  || r_type == R_PARISC_DPREL14F  
                  || r_type == R_PARISC_GPREL16F  
                  || r_type == R_PARISC_GPREL16WF  
                  || r_type == R_PARISC_GPREL16DF)  
           value = hppa_field_adjust (value, addend, e_fsel);  
         else  
           value = hppa_field_adjust (value, addend, e_rrsel);  
   
         insn = elf_hppa_relocate_insn (insn, (int) value, r_type);  
         break;  
       }  
   
     case R_PARISC_DIR21L:  
     case R_PARISC_DIR17R:  
     case R_PARISC_DIR17F:  
     case R_PARISC_DIR14R:  
     case R_PARISC_DIR14F:  
     case R_PARISC_DIR14WR:  
     case R_PARISC_DIR14DR:  
     case R_PARISC_DIR16F:  
     case R_PARISC_DIR16WF:  
     case R_PARISC_DIR16DF:  
       {  
         /* All DIR relocations are basically the same at this point,  
            except that branch offsets need to be divided by four, and  
            we need different field selectors.  Note that we don't  
            redirect absolute calls to local stubs.  */  
   
         if (r_type == R_PARISC_DIR21L)  
           value = hppa_field_adjust (value, addend, e_lrsel);  
         else if (r_type == R_PARISC_DIR17F  
                  || r_type == R_PARISC_DIR16F  
                  || r_type == R_PARISC_DIR16WF  
                  || r_type == R_PARISC_DIR16DF  
                  || r_type == R_PARISC_DIR14F)  
           value = hppa_field_adjust (value, addend, e_fsel);  
         else  
           value = hppa_field_adjust (value, addend, e_rrsel);  
   
         if (r_type == R_PARISC_DIR17R || r_type == R_PARISC_DIR17F)  
           /* All branches are implicitly shifted by 2 places.  */  
           value >>= 2;  
   
         insn = elf_hppa_relocate_insn (insn, (int) value, r_type);  
         break;  
       }  
   
     case R_PARISC_PLTOFF21L:  
     case R_PARISC_PLTOFF14R:  
     case R_PARISC_PLTOFF14F:  
     case R_PARISC_PLTOFF14WR:  
     case R_PARISC_PLTOFF14DR:  
     case R_PARISC_PLTOFF16F:  
     case R_PARISC_PLTOFF16WF:  
     case R_PARISC_PLTOFF16DF:  
       {  
         /* We want the value of the PLT offset for this symbol, not  
            the symbol's actual address.  Note that __gp may not point  
            to the start of the DLT, so we have to compute the absolute  
            address, then subtract out the value of __gp.  */  
         value = (dyn_h->plt_offset  
                  + hppa_info->plt_sec->output_offset  
                  + hppa_info->plt_sec->output_section->vma);  
         value -= _bfd_get_gp_value (output_bfd);  
   
         /* All PLTOFF relocations are basically the same at this point,  
            except that we need different field selectors for the 21bit  
            version vs the 14bit versions.  */  
         if (r_type == R_PARISC_PLTOFF21L)  
           value = hppa_field_adjust (value, addend, e_lrsel);  
         else if (r_type == R_PARISC_PLTOFF14F  
                  || r_type == R_PARISC_PLTOFF16F  
                  || r_type == R_PARISC_PLTOFF16WF  
                  || r_type == R_PARISC_PLTOFF16DF)  
           value = hppa_field_adjust (value, addend, e_fsel);  
         else  
           value = hppa_field_adjust (value, addend, e_rrsel);  
   
         insn = elf_hppa_relocate_insn (insn, (int) value, r_type);  
         break;  
       }  
   
     case R_PARISC_LTOFF_FPTR32:  
       {  
         /* We may still need to create the FPTR itself if it was for  
            a local symbol.  */  
         if (dyn_h->h == NULL)  
           {  
             /* The first two words of an .opd entry are zero.  */  
             memset (hppa_info->opd_sec->contents + dyn_h->opd_offset, 0, 16);  
   
             /* The next word is the address of the function.  */  
             bfd_put_64 (hppa_info->opd_sec->owner, value + addend,  
                         (hppa_info->opd_sec->contents  
                          + dyn_h->opd_offset + 16));  
   
             /* The last word is our local __gp value.  */  
             value = _bfd_get_gp_value  
                       (hppa_info->opd_sec->output_section->owner);  
             bfd_put_64 (hppa_info->opd_sec->owner, value,  
                         hppa_info->opd_sec->contents + dyn_h->opd_offset + 24);  
   
             /* The DLT value is the address of the .opd entry.  */  
             value = (dyn_h->opd_offset  
                      + hppa_info->opd_sec->output_offset  
                      + hppa_info->opd_sec->output_section->vma);  
   
             bfd_put_64 (hppa_info->dlt_sec->owner,  
                         value,  
                         hppa_info->dlt_sec->contents + dyn_h->dlt_offset);  
           }  
   
         /* We want the value of the DLT offset for this symbol, not  
            the symbol's actual address.  Note that __gp may not point  
            to the start of the DLT, so we have to compute the absolute  
            address, then subtract out the value of __gp.  */  
         value = (dyn_h->dlt_offset  
                  + hppa_info->dlt_sec->output_offset  
                  + hppa_info->dlt_sec->output_section->vma);  
         value -= _bfd_get_gp_value (output_bfd);  
         bfd_put_32 (input_bfd, value, hit_data);  
         return bfd_reloc_ok;  
       }  
   
     case R_PARISC_LTOFF_FPTR64:  
     case R_PARISC_LTOFF_TP64:  
       {  
         /* We may still need to create the FPTR itself if it was for  
            a local symbol.  */  
         if (dyn_h->h == NULL && r_type == R_PARISC_LTOFF_FPTR64)  
           {  
             /* The first two words of an .opd entry are zero.  */  
             memset (hppa_info->opd_sec->contents + dyn_h->opd_offset, 0, 16);  
   
             /* The next word is the address of the function.  */  
             bfd_put_64 (hppa_info->opd_sec->owner, value + addend,  
                         (hppa_info->opd_sec->contents  
                          + dyn_h->opd_offset + 16));  
   
             /* The last word is our local __gp value.  */  
             value = _bfd_get_gp_value  
                       (hppa_info->opd_sec->output_section->owner);  
             bfd_put_64 (hppa_info->opd_sec->owner, value,  
                         hppa_info->opd_sec->contents + dyn_h->opd_offset + 24);  
   
             /* The DLT value is the address of the .opd entry.  */  
             value = (dyn_h->opd_offset  
                      + hppa_info->opd_sec->output_offset  
                      + hppa_info->opd_sec->output_section->vma);  
   
             bfd_put_64 (hppa_info->dlt_sec->owner,  
                         value,  
                         hppa_info->dlt_sec->contents + dyn_h->dlt_offset);  
           }  
   
         /* We want the value of the DLT offset for this symbol, not  
            the symbol's actual address.  Note that __gp may not point  
            to the start of the DLT, so we have to compute the absolute  
            address, then subtract out the value of __gp.  */  
         value = (dyn_h->dlt_offset  
                  + hppa_info->dlt_sec->output_offset  
                  + hppa_info->dlt_sec->output_section->vma);  
         value -= _bfd_get_gp_value (output_bfd);  
         bfd_put_64 (input_bfd, value, hit_data);  
         return bfd_reloc_ok;  
       }  
   
     case R_PARISC_DIR32:  
       bfd_put_32 (input_bfd, value + addend, hit_data);  
       return bfd_reloc_ok;  
   
     case R_PARISC_DIR64:  
       bfd_put_64 (input_bfd, value + addend, hit_data);  
       return bfd_reloc_ok;  
   
     case R_PARISC_GPREL64:  
       /* Subtract out the global pointer value to make value a DLT  
          relative address.  */  
       value -= _bfd_get_gp_value (output_bfd);  
   
       bfd_put_64 (input_bfd, value + addend, hit_data);  
       return bfd_reloc_ok;  
   
     case R_PARISC_LTOFF64:  
         /* We want the value of the DLT offset for this symbol, not  
            the symbol's actual address.  Note that __gp may not point  
            to the start of the DLT, so we have to compute the absolute  
            address, then subtract out the value of __gp.  */  
       value = (dyn_h->dlt_offset  
                + hppa_info->dlt_sec->output_offset  
                + hppa_info->dlt_sec->output_section->vma);  
       value -= _bfd_get_gp_value (output_bfd);  
   
       bfd_put_64 (input_bfd, value + addend, hit_data);  
       return bfd_reloc_ok;  
   
     case R_PARISC_PCREL32:  
       {  
         /* If this is a call to a function defined in another dynamic  
            library, then redirect the call to the local stub for this  
            function.  */  
         if (sym_sec == NULL || sym_sec->output_section == NULL)  
           value = (dyn_h->stub_offset + hppa_info->stub_sec->output_offset  
                    + hppa_info->stub_sec->output_section->vma);  
   
         /* Turn VALUE into a proper PC relative address.  */  
         value -= (offset + input_section->output_offset  
                   + input_section->output_section->vma);  
   
         value += addend;  
         value -= 8;  
         bfd_put_32 (input_bfd, value, hit_data);  
         return bfd_reloc_ok;  
       }  
   
     case R_PARISC_PCREL64:  
       {  
         /* If this is a call to a function defined in another dynamic  
            library, then redirect the call to the local stub for this  
            function.  */  
         if (sym_sec == NULL || sym_sec->output_section == NULL)  
           value = (dyn_h->stub_offset + hppa_info->stub_sec->output_offset  
                    + hppa_info->stub_sec->output_section->vma);  
   
         /* Turn VALUE into a proper PC relative address.  */  
         value -= (offset + input_section->output_offset  
                   + input_section->output_section->vma);  
   
         value += addend;  
         value -= 8;  
         bfd_put_64 (input_bfd, value, hit_data);  
         return bfd_reloc_ok;  
       }  
   
     case R_PARISC_FPTR64:  
       {  
         /* We may still need to create the FPTR itself if it was for  
            a local symbol.  */  
         if (dyn_h->h == NULL)  
           {  
             /* The first two words of an .opd entry are zero.  */  
             memset (hppa_info->opd_sec->contents + dyn_h->opd_offset, 0, 16);  
   
             /* The next word is the address of the function.  */  
             bfd_put_64 (hppa_info->opd_sec->owner, value + addend,  
                         (hppa_info->opd_sec->contents  
                          + dyn_h->opd_offset + 16));  
   
             /* The last word is our local __gp value.  */  
             value = _bfd_get_gp_value  
                       (hppa_info->opd_sec->output_section->owner);  
             bfd_put_64 (hppa_info->opd_sec->owner, value,  
                         hppa_info->opd_sec->contents + dyn_h->opd_offset + 24);  
           }  
   
         if (dyn_h->want_opd)  
           /* We want the value of the OPD offset for this symbol.  */  
           value = (dyn_h->opd_offset  
                    + hppa_info->opd_sec->output_offset  
                    + hppa_info->opd_sec->output_section->vma);  
         else  
           /* We want the address of the symbol.  */  
           value += addend;  
   
         bfd_put_64 (input_bfd, value, hit_data);  
         return bfd_reloc_ok;  
       }  
   
     case R_PARISC_SECREL32:  
       bfd_put_32 (input_bfd,  
                   value + addend - sym_sec->output_section->vma,  
                   hit_data);  
       return bfd_reloc_ok;  
   
     case R_PARISC_SEGREL32:  
     case R_PARISC_SEGREL64:  
       {  
         /* If this is the first SEGREL relocation, then initialize  
            the segment base values.  */  
         if (hppa_info->text_segment_base == (bfd_vma) -1)  
           bfd_map_over_sections (output_bfd, elf_hppa_record_segment_addrs,  
                                  hppa_info);  
   
         /* VALUE holds the absolute address.  We want to include the  
            addend, then turn it into a segment relative address.  
   
            The segment is derived from SYM_SEC.  We assume that there are  
            only two segments of note in the resulting executable/shlib.  
            A readonly segment (.text) and a readwrite segment (.data).  */  
         value += addend;  
   
         if (sym_sec->flags & SEC_CODE)  
           value -= hppa_info->text_segment_base;  
         else  
           value -= hppa_info->data_segment_base;  
   
         if (r_type == R_PARISC_SEGREL32)  
           bfd_put_32 (input_bfd, value, hit_data);  
         else  
           bfd_put_64 (input_bfd, value, hit_data);  
         return bfd_reloc_ok;  
       }  
   
     /* Something we don't know how to handle.  */  
     default:  
       return bfd_reloc_notsupported;  
     }  
   
   /* Update the instruction word.  */  
   bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);  
   return bfd_reloc_ok;  
 }  
   
 /* Relocate an HPPA ELF section.  */  
   
 static bfd_boolean  
 elf_hppa_relocate_section (bfd *output_bfd,  
                            struct bfd_link_info *info,  
                            bfd *input_bfd,  
                            asection *input_section,  
                            bfd_byte *contents,  
                            Elf_Internal_Rela *relocs,  
                            Elf_Internal_Sym *local_syms,  
                            asection **local_sections)  
 {  
   Elf_Internal_Shdr *symtab_hdr;  
   Elf_Internal_Rela *rel;  
   Elf_Internal_Rela *relend;  
   struct elf64_hppa_link_hash_table *hppa_info;  
   
   hppa_info = elf64_hppa_hash_table (info);  
   symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;  
   
   rel = relocs;  
   relend = relocs + input_section->reloc_count;  
   for (; rel < relend; rel++)  
     {  
       int r_type;  
       reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info);  
       unsigned long r_symndx;  
       struct elf_link_hash_entry *h;  
       Elf_Internal_Sym *sym;  
       asection *sym_sec;  
       bfd_vma relocation;  
       bfd_reloc_status_type r;  
       const char *dyn_name;  
       char *dynh_buf = NULL;  
       size_t dynh_buflen = 0;  
       struct elf64_hppa_dyn_hash_entry *dyn_h = NULL;  
   
       r_type = ELF_R_TYPE (rel->r_info);  
       if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)  
         {  
           bfd_set_error (bfd_error_bad_value);  
           return FALSE;  
         }  
   
       /* This is a final link.  */  
       r_symndx = ELF_R_SYM (rel->r_info);  
       h = NULL;  
       sym = NULL;  
       sym_sec = NULL;  
       if (r_symndx < symtab_hdr->sh_info)  
         {  
           /* This is a local symbol.  */  
           sym = local_syms + r_symndx;  
           sym_sec = local_sections[r_symndx];  
           relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rel);  
   
           /* If this symbol has an entry in the PA64 dynamic hash  
              table, then get it.  */  
           dyn_name = get_dyn_name (input_bfd, h, rel,  
                                    &dynh_buf, &dynh_buflen);  
           dyn_h = elf64_hppa_dyn_hash_lookup (&hppa_info->dyn_hash_table,  
                                               dyn_name, FALSE, FALSE);  
   
         }  
       else  
         {  
           /* This is not a local symbol.  */  
           long indx;  
   
           relocation = 0;  
           indx = r_symndx - symtab_hdr->sh_info;  
           h = elf_sym_hashes (input_bfd)[indx];  
           while (h->root.type == bfd_link_hash_indirect  
                  || h->root.type == bfd_link_hash_warning)  
             h = (struct elf_link_hash_entry *) h->root.u.i.link;  
           if (h->root.type == bfd_link_hash_defined  
               || h->root.type == bfd_link_hash_defweak)  
             {  
               sym_sec = h->root.u.def.section;  
   
               /* If this symbol has an entry in the PA64 dynamic hash  
                  table, then get it.  */  
               dyn_name = get_dyn_name (input_bfd, h, rel,  
                                        &dynh_buf, &dynh_buflen);  
               dyn_h = elf64_hppa_dyn_hash_lookup (&hppa_info->dyn_hash_table,  
                                                   dyn_name, FALSE, FALSE);  
   
               /* If we have a relocation against a symbol defined in a  
                  shared library and we have not created an entry in the  
                  PA64 dynamic symbol hash table for it, then we lose.  */  
               if (!info->relocatable  
                   && sym_sec->output_section == NULL && dyn_h == NULL)  
                 {  
                   (*_bfd_error_handler)  
                     (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),  
                      input_bfd,  
                      input_section,  
                      (long) rel->r_offset,  
                      howto->name,  
                      h->root.root.string);  
                 }  
               else if (sym_sec->output_section)  
                 relocation = (h->root.u.def.value  
                               + sym_sec->output_offset  
                               + sym_sec->output_section->vma);  
             }  
           else if (info->unresolved_syms_in_objects == RM_IGNORE  
                    && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)  
             {  
               /* If this symbol has an entry in the PA64 dynamic hash  
                  table, then get it.  */  
               dyn_name = get_dyn_name (input_bfd, h, rel,  
                                        &dynh_buf, &dynh_buflen);  
               dyn_h = elf64_hppa_dyn_hash_lookup (&hppa_info->dyn_hash_table,  
                                                   dyn_name, FALSE, FALSE);  
   
               if (!info->relocatable && dyn_h == NULL)  
                 {  
                   (*_bfd_error_handler)  
                     (_("%B(%A): warning: unresolvable relocation against symbol `%s'"),  
                      input_bfd, input_section, h->root.root.string);  
                 }  
             }  
           else if (h->root.type == bfd_link_hash_undefweak)  
             {  
               dyn_name = get_dyn_name (input_bfd, h, rel,  
                                        &dynh_buf, &dynh_buflen);  
               dyn_h = elf64_hppa_dyn_hash_lookup (&hppa_info->dyn_hash_table,  
                                                   dyn_name, FALSE, FALSE);  
   
               if (!info->relocatable && dyn_h == NULL)  
                 {  
                   (*_bfd_error_handler)  
                     (_("%B(%A): warning: unresolvable relocation against symbol `%s'"),  
                      input_bfd, input_section, h->root.root.string);  
                 }  
             }  
           else if (!info->relocatable)  
             {  
               /* Ignore dynamic loader defined symbols.  */  
               if (!elf_hppa_is_dynamic_loader_symbol (h->root.root.string))  
                 {  
                   if (!((*info->callbacks->undefined_symbol)  
                         (info, h->root.root.string, input_bfd,  
                          input_section, rel->r_offset,  
                          (info->unresolved_syms_in_objects == RM_GENERATE_ERROR  
                           || ELF_ST_VISIBILITY (h->other)))))  
                     return FALSE;  
                   break;  
                 }  
             }  
         }  
   
       if (sym_sec != NULL && elf_discarded_section (sym_sec))  
         {  
           /* For relocs against symbols from removed linkonce sections,  
              or sections discarded by a linker script, we just want the  
              section contents zeroed.  Avoid any special processing.  */  
           _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);  
           rel->r_info = 0;  
           rel->r_addend = 0;  
           continue;  
         }  
   
       if (info->relocatable)  
         continue;  
   
       r = elf_hppa_final_link_relocate (rel, input_bfd, output_bfd,  
                                         input_section, contents,  
                                         relocation, info, sym_sec,  
                                         h, dyn_h);  
   
       if (r != bfd_reloc_ok)  
         {  
           switch (r)  
             {  
             default:  
               abort ();  
             case bfd_reloc_overflow:  
               {  
                 const char *sym_name;  
   
                 if (h != NULL)  
                   sym_name = NULL;  
                 else  
                   {  
                     sym_name = bfd_elf_string_from_elf_section (input_bfd,  
                                                                 symtab_hdr->sh_link,  
                                                                 sym->st_name);  
                     if (sym_name == NULL)  
                       return FALSE;  
                     if (*sym_name == '\0')  
                       sym_name = bfd_section_name (input_bfd, sym_sec);  
                   }  
   
                 if (!((*info->callbacks->reloc_overflow)  
                       (info, (h ? &h->root : NULL), sym_name,  
                        howto->name, (bfd_vma) 0, input_bfd,  
                        input_section, rel->r_offset)))  
                   return FALSE;  
               }  
               break;  
             }  
         }  
     }  
   return TRUE;  
 }  
   
 #endif /* ARCH_SIZE == 64 */  
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