Remove ppc860, ppc750cl, ppc7450 insns from common ppc.

[binutils-gdb.git] / bfd / elfxx-mips.c

diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c
index db403b3a00f49bb640a3779155feeb4273a35b02..9932453658bcfe23383a1219700adf49946fd558 100644 (file)
--- a/bfd/elfxx-mips.c
+++ b/bfd/elfxx-mips.c
@@ -1,5 +1,5 @@
 /* MIPS-specific support for ELF
-   Copyright (C) 1993-2014 Free Software Foundation, Inc.
+   Copyright (C) 1993-2015 Free Software Foundation, Inc.
 
    Most of the information added by Ian Lance Taylor, Cygnus Support,
    <ian@cygnus.com>.
@@ -36,6 +36,7 @@
 #include "elfxx-mips.h"
 #include "elf/mips.h"
 #include "elf-vxworks.h"
+#include "dwarf2.h"
 
 /* Get the ECOFF swapping routines.  */
 #include "coff/sym.h"
@@ -6194,11 +6195,13 @@ mips_elf_obtain_contents (reloc_howto_type *howto,
                          const Elf_Internal_Rela *relocation,
                          bfd *input_bfd, bfd_byte *contents)
 {
-  bfd_vma x;
+  bfd_vma x = 0;
   bfd_byte *location = contents + relocation->r_offset;
+  unsigned int size = bfd_get_reloc_size (howto);
 
   /* Obtain the bytes.  */
-  x = bfd_get ((8 * bfd_get_reloc_size (howto)), input_bfd, location);
+  if (size != 0)
+    x = bfd_get (8 * size, input_bfd, location);
 
   return x;
 }
@@ -6223,6 +6226,7 @@ mips_elf_perform_relocation (struct bfd_link_info *info,
   bfd_vma x;
   bfd_byte *location;
   int r_type = ELF_R_TYPE (input_bfd, relocation->r_info);
+  unsigned int size;
 
   /* Figure out where the relocation is occurring.  */
   location = contents + relocation->r_offset;
@@ -6316,7 +6320,9 @@ mips_elf_perform_relocation (struct bfd_link_info *info,
     }
 
   /* Put the value into the output.  */
-  bfd_put (8 * bfd_get_reloc_size (howto), input_bfd, x, location);
+  size = bfd_get_reloc_size (howto);
+  if (size != 0)
+    bfd_put (8 * size, input_bfd, x, location);
 
   _bfd_mips_elf_reloc_shuffle (input_bfd, r_type, !info->relocatable,
                               location);
@@ -7608,7 +7614,7 @@ _bfd_mips_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
   htab->sstubs = s;
 
   if (!mips_elf_hash_table (info)->use_rld_obj_head
-      && !info->shared
+      && info->executable
       && bfd_get_linker_section (abfd, ".rld_map") == NULL)
     {
       s = bfd_make_section_anyway_with_flags (abfd, ".rld_map",
@@ -7672,7 +7678,7 @@ _bfd_mips_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
        (void) bfd_set_section_alignment (abfd, s, MIPS_ELF_LOG_FILE_ALIGN (abfd));
     }
 
-  if (!info->shared)
+  if (info->executable)
     {
       const char *name;
 
@@ -9713,7 +9719,7 @@ _bfd_mips_elf_size_dynamic_sections (bfd *output_bfd,
              info->combreloc = 0;
            }
        }
-      else if (! info->shared
+      else if (info->executable
               && ! mips_elf_hash_table (info)->use_rld_obj_head
               && CONST_STRNEQ (name, ".rld_map"))
        {
@@ -9776,6 +9782,10 @@ _bfd_mips_elf_size_dynamic_sections (bfd *output_bfd,
          && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_MAP, 0))
        return FALSE;
 
+      if (info->executable
+         && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_MAP_REL, 0))
+       return FALSE;
+
       /* The DT_DEBUG entry may be filled in by the dynamic linker and
         used by the debugger.  */
       if (info->executable
@@ -11481,11 +11491,37 @@ _bfd_mips_elf_finish_dynamic_sections (bfd *output_bfd,
                    break;
                  }
                s = h->root.u.def.section;
+
+               /* The MIPS_RLD_MAP tag stores the absolute address of the
+                  debug pointer.  */
                dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset
                                  + h->root.u.def.value);
              }
              break;
 
+           case DT_MIPS_RLD_MAP_REL:
+             {
+               struct elf_link_hash_entry *h;
+               bfd_vma dt_addr, rld_addr;
+               h = mips_elf_hash_table (info)->rld_symbol;
+               if (!h)
+                 {
+                   dyn_to_skip = MIPS_ELF_DYN_SIZE (dynobj);
+                   swap_out_p = FALSE;
+                   break;
+                 }
+               s = h->root.u.def.section;
+
+               /* The MIPS_RLD_MAP_REL tag stores the offset to the debug
+                  pointer, relative to the address of the tag.  */
+               dt_addr = (sdyn->output_section->vma + sdyn->output_offset
+                          + b - sdyn->contents);
+               rld_addr = (s->output_section->vma + s->output_offset
+                           + h->root.u.def.value);
+               dyn.d_un.d_ptr = rld_addr - dt_addr;
+             }
+             break;
+
            case DT_MIPS_OPTIONS:
              s = (bfd_get_section_by_name
                   (output_bfd, MIPS_ELF_OPTIONS_SECTION_NAME (output_bfd)));
@@ -15415,6 +15451,8 @@ _bfd_mips_elf_get_target_dtag (bfd_vma dtag)
       return "MIPS_HIPAGENO";
     case DT_MIPS_RLD_MAP:
       return "MIPS_RLD_MAP";
+    case DT_MIPS_RLD_MAP_REL:
+      return "MIPS_RLD_MAP_REL";
     case DT_MIPS_DELTA_CLASS:
       return "MIPS_DELTA_CLASS";
     case DT_MIPS_DELTA_CLASS_NO:
@@ -16104,3 +16142,17 @@ _bfd_mips_post_process_headers (bfd *abfd, struct bfd_link_info *link_info)
       || mips_elf_tdata (abfd)->abiflags.fp_abi == Val_GNU_MIPS_ABI_FP_64A)
     i_ehdrp->e_ident[EI_ABIVERSION] = 3;
 }
+
+int
+_bfd_mips_elf_compact_eh_encoding (struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
+{
+  return DW_EH_PE_pcrel | DW_EH_PE_sdata4;
+}
+
+/* Return the opcode for can't unwind.  */
+
+int
+_bfd_mips_elf_cant_unwind_opcode (struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
+{
+  return COMPACT_EH_CANT_UNWIND_OPCODE;
+}