* libbfd-in.h: Removed swapping routines declarations.

	* bfd-in.h: Added swapping routine declarations, and renamed them
	from _do_* to bfd_*.
	* libbfd.c: Renamed swapping routines from _do_* to _bfd_*.
	* Changed all callers.
	* libbfd.h, bfd-in2.h: Rebuilt.

5 files changed, 642 insertions, 141 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 5852a2d..f22bc47 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,12 @@
+Tue Sep  7 14:17:02 1993  Ian Lance Taylor  (ian@tweedledumb.cygnus.com)
+
+	* libbfd-in.h: Removed swapping routines declarations.
+	* bfd-in.h: Added swapping routine declarations, and renamed them
+	from _do_* to bfd_*.
+	* libbfd.c: Renamed swapping routines from _do_* to _bfd_*.
+	* Changed all callers.
+	* libbfd.h, bfd-in2.h: Rebuilt.
+
 Mon Sep  6 15:28:07 1993  Ian Lance Taylor  (ian@tweedledumb.cygnus.com)
 
 	* elf32-i386.c (elf_howto_table): Set pcrel_offset to true for
diff --git a/bfd/coff-a29k.c b/bfd/coff-a29k.c
index 01a2679..3cf8607 100644
--- a/bfd/coff-a29k.c
+++ b/bfd/coff-a29k.c
@@ -304,13 +304,13 @@ bfd_target a29kcoff_big_vec =
   15,				/* ar_max_namelen */
   2,				/* minimum section alignment */
   /* data */
-  _do_getb64, _do_getb_signed_64, _do_putb64,
-     _do_getb32, _do_getb_signed_32,   _do_putb32,
-     _do_getb16, _do_getb_signed_16, _do_putb16,
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+     bfd_getb32, bfd_getb_signed_32,   bfd_putb32,
+     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
   /* hdrs */
-  _do_getb64, _do_getb_signed_64, _do_putb64,
-     _do_getb32, _do_getb_signed_32,   _do_putb32,
-     _do_getb16, _do_getb_signed_16, _do_putb16,
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+     bfd_getb32, bfd_getb_signed_32,   bfd_putb32,
+     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 
  {
 	    
diff --git a/bfd/coff-mips.c b/bfd/coff-mips.c
index a44a022..baffd44 100644
--- a/bfd/coff-mips.c
+++ b/bfd/coff-mips.c
@@ -41,8 +41,31 @@ static void mips_ecoff_swap_reloc_in PARAMS ((bfd *, PTR,
 static void mips_ecoff_swap_reloc_out PARAMS ((bfd *,
 					       const struct internal_reloc *,
 					       PTR));
+static bfd_reloc_status_type mips_generic_reloc PARAMS ((bfd *abfd,
+							 arelent *reloc,
+							 asymbol *symbol,
+							 PTR data,
+							 asection *section,
+							 bfd *output_bfd));
+static bfd_reloc_status_type mips_refhi_reloc PARAMS ((bfd *abfd,
+						       arelent *reloc,
+						       asymbol *symbol,
+						       PTR data,
+						       asection *section,
+						       bfd *output_bfd));
+static bfd_reloc_status_type mips_reflo_reloc PARAMS ((bfd *abfd,
+						       arelent *reloc,
+						       asymbol *symbol,
+						       PTR data,
+						       asection *section,
+						       bfd *output_bfd));
+static bfd_reloc_status_type mips_gprel_reloc PARAMS ((bfd *abfd,
+						       arelent *reloc,
+						       asymbol *symbol,
+						       PTR data,
+						       asection *section,
+						       bfd *output_bfd));
 
-
 /* ECOFF has COFF sections, but the debugging information is stored in
    a completely different format.  ECOFF targets use some of the
    swapping routines from coffswap.h, and some of the generic COFF
@@ -50,7 +73,7 @@ static void mips_ecoff_swap_reloc_out PARAMS ((bfd *,
    use coffcode.h itself.
 
    Get the generic COFF swapping routines, except for the reloc,
-   symbol, and lineno ones.  Give them ecoff names.  */
+   symbol, and lineno ones.  Give them ECOFF names.  */
 #define MIPSECOFF
 #define NO_COFF_RELOCS
 #define NO_COFF_SYMBOLS
@@ -67,58 +90,138 @@ static void mips_ecoff_swap_reloc_out PARAMS ((bfd *,
 #define ECOFF_32
 #include "ecoffswap.h"
 
-/* This is the ECOFF backend structure.  The backend_data field of the
-   ecoff_tdata structure is set to this when an ECOFF BFD is
-   initialized.  This is used by the generic ECOFF routines.  */
+/* How to process the various relocs types.  */
 
-static const struct ecoff_backend_data mips_ecoff_backend_data =
+static reloc_howto_type mips_howto_table[] =
 {
-  /* Supported architecture.  */
-  bfd_arch_mips,
-  /* Big endian magic number.  */
-  MIPS_MAGIC_BIG,
-  /* Little endian magic number.  */
-  MIPS_MAGIC_LITTLE,
-  /* Alignment of debugging information.  E.g., 4.  */
-  4,
-  /* The page boundary used to align sections in a demand-paged
-     executable file.  E.g., 0x1000.  */
-  0x1000,
-  /* Bitsize of constructor entries.  */
-  32,
-  /* Sizes of external symbolic information.  */
-  sizeof (struct hdr_ext),
-  sizeof (struct dnr_ext),
-  sizeof (struct pdr_ext),
-  sizeof (struct sym_ext),
-  sizeof (struct opt_ext),
-  sizeof (struct fdr_ext),
-  sizeof (struct rfd_ext),
-  sizeof (struct ext_ext),
-  /* Functions to swap in external symbolic data.  */
-  ecoff_swap_hdr_in,
-  ecoff_swap_dnr_in,
-  ecoff_swap_pdr_in,
-  ecoff_swap_sym_in,
-  ecoff_swap_opt_in,
-  ecoff_swap_fdr_in,
-  ecoff_swap_rfd_in,
-  ecoff_swap_ext_in,
-  /* Functions to swap out external symbolic data.  */
-  ecoff_swap_hdr_out,
-  ecoff_swap_dnr_out,
-  ecoff_swap_pdr_out,
-  ecoff_swap_sym_out,
-  ecoff_swap_opt_out,
-  ecoff_swap_fdr_out,
-  ecoff_swap_rfd_out,
-  ecoff_swap_ext_out,
-  /* External reloc size.  */
-  RELSZ,
-  /* Reloc swapping functions.  */
-  mips_ecoff_swap_reloc_in,
-  mips_ecoff_swap_reloc_out
+  /* Reloc type 0 is ignored.  The reloc reading code ensures that
+     this is a reference to the .abs section, which will cause
+     bfd_perform_relocation to do nothing.  */
+  HOWTO (MIPS_R_IGNORE,	/* type */
+	 0,			/* rightshift */
+	 0,			/* size (0 = byte, 1 = short, 2 = long) */
+	 8,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont, /* complain_on_overflow */
+	 0,			/* special_function */
+	 "IGNORE",		/* name */
+	 false,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0,			/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  /* A 16 bit reference to a symbol, normally from a data section.  */
+  HOWTO (MIPS_R_REFHALF,	/* type */
+	 0,			/* rightshift */
+	 1,			/* size (0 = byte, 1 = short, 2 = long) */
+	 16,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 mips_generic_reloc,	/* special_function */
+	 "REFHALF",		/* name */
+	 true,			/* partial_inplace */
+	 0xffff,		/* src_mask */
+	 0xffff,		/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  /* A 32 bit reference to a symbol, normally from a data section.  */
+  HOWTO (MIPS_R_REFWORD,	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 32,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 mips_generic_reloc,	/* special_function */
+	 "REFWORD",		/* name */
+	 true,			/* partial_inplace */
+	 0xffffffff,		/* src_mask */
+	 0xffffffff,		/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  /* A 26 bit absolute jump address.  */
+  HOWTO (MIPS_R_JMPADDR,	/* type */
+	 2,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 26,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 mips_generic_reloc,	/* special_function */
+	 "JMPADDR",		/* name */
+	 true,			/* partial_inplace */
+	 0x3ffffff,		/* src_mask */
+	 0x3ffffff,		/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  /* The high 16 bits of a symbol value.  Handled by the function
+     mips_refhi_reloc.  */
+  HOWTO (MIPS_R_REFHI,		/* type */
+	 16,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 16,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 mips_refhi_reloc,	/* special_function */
+	 "REFHI",		/* name */
+	 true,			/* partial_inplace */
+	 0xffff,		/* src_mask */
+	 0xffff,		/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  /* The low 16 bits of a symbol value.  */
+  HOWTO (MIPS_R_REFLO,		/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 16,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont, /* complain_on_overflow */
+	 mips_reflo_reloc,	/* special_function */
+	 "REFLO",		/* name */
+	 true,			/* partial_inplace */
+	 0xffff,		/* src_mask */
+	 0xffff,		/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  /* A reference to an offset from the gp register.  Handled by the
+     function mips_gprel_reloc.  */
+  HOWTO (MIPS_R_GPREL,		/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 16,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 mips_gprel_reloc,	/* special_function */
+	 "GPREL",		/* name */
+	 true,			/* partial_inplace */
+	 0xffff,		/* src_mask */
+	 0xffff,		/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  /* A reference to a literal using an offset from the gp register.
+     Handled by the function mips_gprel_reloc.  */
+  HOWTO (MIPS_R_LITERAL,	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 16,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 mips_gprel_reloc,	/* special_function */
+	 "LITERAL",		/* name */
+	 true,			/* partial_inplace */
+	 0xffff,		/* src_mask */
+	 0xffff,		/* dst_mask */
+	 false)			/* pcrel_offset */
 };
+
+#define MIPS_HOWTO_COUNT \
+  (sizeof mips_howto_table / sizeof mips_howto_table[0])
 
 /* See whether the magic number matches.  */
 
@@ -135,29 +238,6 @@ mips_ecoff_bad_format_hook (abfd, filehdr)
   return true;
 }
 
-/* Create an ECOFF object.  */
-
-static boolean
-mips_ecoff_mkobject (abfd)
-     bfd *abfd;
-{
-  abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *)
-				bfd_zalloc (abfd, sizeof (ecoff_data_type)));
-  if (abfd->tdata.ecoff_obj_data == NULL)
-    {
-      bfd_error = no_memory;
-      return false;
-    }
-
-  ecoff_data (abfd)->backend_data = &mips_ecoff_backend_data;
-
-  /* Always create a .scommon section for every BFD.  This is a hack so
-     that the linker has something to attach scSCommon symbols to.  */
-  bfd_make_section (abfd, SCOMMON);
-
-  return true;
-}
-
 /* Create the MIPS ECOFF backend specific information.  */
 
 static PTR
@@ -170,7 +250,7 @@ mips_ecoff_mkobject_hook (abfd, filehdr, aouthdr)
   struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr;
   ecoff_data_type *ecoff;
 
-  if (mips_ecoff_mkobject (abfd) == false)
+  if (ecoff_mkobject (abfd) == false)
     return NULL;
 
   ecoff = ecoff_data (abfd);
@@ -265,6 +345,359 @@ mips_ecoff_swap_reloc_out (abfd, intern, dst)
 			| (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0));
     }
 }
+
+/* Finish canonicalizing a reloc.  Part of this is generic to all
+   ECOFF targets, and that part is in ecoff.c.  The rest is done in
+   this backend routine.  It must fill in the howto field.  */
+
+static void
+mips_finish_reloc (abfd, intern, rptr)
+     bfd *abfd;
+     struct internal_reloc *intern;
+     arelent *rptr;
+{
+  if (intern->r_type > MIPS_R_LITERAL)
+    abort ();
+
+  if (! intern->r_extern
+      && (intern->r_type == MIPS_R_GPREL
+	  || intern->r_type == MIPS_R_LITERAL))
+    rptr->addend += ecoff_data (abfd)->gp;
+
+  /* If the type is MIPS_R_IGNORE, make sure this is a reference to
+     the absolute section so that the reloc is ignored.  */
+  if (intern->r_type == MIPS_R_IGNORE)
+    rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
+
+  rptr->howto = &mips_howto_table[intern->r_type];
+}
+
+/* ECOFF relocs are either against external symbols, or against
+   sections.  If we are producing relocateable output, and the reloc
+   is against an external symbol, and nothing has given us any
+   additional addend, the resulting reloc will also be against the
+   same symbol.  In such a case, we don't want to change anything
+   about the way the reloc is handled, since it will all be done at
+   final link time.  Rather than put special case code into
+   bfd_perform_relocation, all the reloc types use this howto
+   function.  It just short circuits the reloc if producing
+   relocateable output against an external symbol.  */
+
+static bfd_reloc_status_type
+mips_generic_reloc (abfd,
+		    reloc_entry,
+		    symbol,
+		    data,
+		    input_section,
+		    output_bfd)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+{
+  if (output_bfd != (bfd *) NULL
+      && (symbol->flags & BSF_SECTION_SYM) == 0
+      && reloc_entry->addend == 0)
+    {
+      reloc_entry->address += input_section->output_offset;
+      return bfd_reloc_ok;
+    }
+
+  return bfd_reloc_continue;
+}
+
+/* Do a REFHI relocation.  This has to be done in combination with a
+   REFLO reloc, because there is a carry from the REFLO to the REFHI.
+   Here we just save the information we need; we do the actual
+   relocation when we see the REFLO.  MIPS ECOFF requires that the
+   REFLO immediately follow the REFHI, so this ought to work.  */
+
+static bfd_byte *mips_refhi_addr;
+static bfd_vma mips_refhi_addend;
+
+static bfd_reloc_status_type
+mips_refhi_reloc (abfd,
+		  reloc_entry,
+		  symbol,
+		  data,
+		  input_section,
+		  output_bfd)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+{
+  bfd_reloc_status_type ret;
+  bfd_vma relocation;
+
+  /* If we're relocating, and this an external symbol, we don't want
+     to change anything.  */
+  if (output_bfd != (bfd *) NULL
+      && (symbol->flags & BSF_SECTION_SYM) == 0
+      && reloc_entry->addend == 0)
+    {
+      reloc_entry->address += input_section->output_offset;
+      return bfd_reloc_ok;
+    }
+
+  ret = bfd_reloc_ok;
+  if (symbol->section == &bfd_und_section
+      && output_bfd == (bfd *) NULL)
+    ret = bfd_reloc_undefined;
+
+  if (bfd_is_com_section (symbol->section))
+    relocation = 0;
+  else
+    relocation = symbol->value;
+
+  relocation += symbol->section->output_section->vma;
+  relocation += symbol->section->output_offset;
+  relocation += reloc_entry->addend;
+
+  if (reloc_entry->address > input_section->_cooked_size)
+    return bfd_reloc_outofrange;
+
+  /* Save the information, and let REFLO do the actual relocation.  */
+  mips_refhi_addr = (bfd_byte *) data + reloc_entry->address;
+  mips_refhi_addend = relocation;
+
+  if (output_bfd != (bfd *) NULL)
+    reloc_entry->address += input_section->output_offset;
+
+  return ret;
+}
+
+/* Do a REFLO relocation.  This is a straightforward 16 bit inplace
+   relocation; this function exists in order to do the REFHI
+   relocation described above.  */
+
+static bfd_reloc_status_type
+mips_reflo_reloc (abfd,
+		  reloc_entry,
+		  symbol,
+		  data,
+		  input_section,
+		  output_bfd)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+{
+  if (mips_refhi_addr != (bfd_byte *) NULL)
+    {
+      unsigned long insn;
+      unsigned long val;
+      unsigned long vallo;
+
+      /* Do the REFHI relocation.  Note that we actually don't need to
+	 know anything about the REFLO itself, except where to find
+	 the low 16 bits of the addend needed by the REFHI.  */
+      insn = bfd_get_32 (abfd, mips_refhi_addr);
+      vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address)
+	       & 0xffff);
+      val = ((insn & 0xffff) << 16) + vallo;
+      val += mips_refhi_addend;
+
+      /* The low order 16 bits are always treated as a signed value.
+	 Therefore, a negative value in the low order bits requires an
+	 adjustment in the high order bits.  We need to make this
+	 adjustment in two ways: once for the bits we took from the
+	 data, and once for the bits we are putting back in to the
+	 data.  */
+      if ((vallo & 0x8000) != 0)
+	val -= 0x10000;
+      if ((val & 0x8000) != 0)
+	val += 0x10000;
+
+      insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff);
+      bfd_put_32 (abfd, insn, mips_refhi_addr);
+
+      mips_refhi_addr = (bfd_byte *) NULL;
+    }
+
+  /* Now do the REFLO reloc in the usual way.  */
+  return mips_generic_reloc (abfd, reloc_entry, symbol, data,
+			      input_section, output_bfd);
+}
+
+/* Do a GPREL relocation.  This is a 16 bit value which must become
+   the offset from the gp register.  */
+
+static bfd_reloc_status_type
+mips_gprel_reloc (abfd,
+		   reloc_entry,
+		   symbol,
+		   data,
+		   input_section,
+		   output_bfd)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+{
+  boolean relocateable;
+  bfd_vma relocation;
+  unsigned long val;
+  unsigned long insn;
+
+  /* If we're relocating, and this is an external symbol with no
+     addend, we don't want to change anything.  We will only have an
+     addend if this is a newly created reloc, not read from an ECOFF
+     file.  */
+  if (output_bfd != (bfd *) NULL
+      && (symbol->flags & BSF_SECTION_SYM) == 0
+      && reloc_entry->addend == 0)
+    {
+      reloc_entry->address += input_section->output_offset;
+      return bfd_reloc_ok;
+    }
+
+  if (output_bfd != (bfd *) NULL)
+    relocateable = true;
+  else
+    {
+      relocateable = false;
+      output_bfd = symbol->section->output_section->owner;
+    }
+
+  if (symbol->section == &bfd_und_section
+      && relocateable == false)
+    return bfd_reloc_undefined;
+
+  /* We have to figure out the gp value, so that we can adjust the
+     symbol value correctly.  We look up the symbol _gp in the output
+     BFD.  If we can't find it, we're stuck.  We cache it in the ECOFF
+     target data.  We don't need to adjust the symbol value for an
+     external symbol if we are producing relocateable output.  */
+  if (ecoff_data (output_bfd)->gp == 0
+      && (relocateable == false
+	  || (symbol->flags & BSF_SECTION_SYM) != 0))
+    {
+      if (relocateable != false)
+	{
+	  /* Make up a value.  */
+	  ecoff_data (output_bfd)->gp =
+	    symbol->section->output_section->vma + 0x4000;
+	}
+      else
+	{
+	  unsigned int count;
+	  asymbol **sym;
+	  unsigned int i;
+
+	  count = bfd_get_symcount (output_bfd);
+	  sym = bfd_get_outsymbols (output_bfd);
+
+	  if (sym == (asymbol **) NULL)
+	    i = count;
+	  else
+	    {
+	      for (i = 0; i < count; i++, sym++)
+		{
+		  register CONST char *name;
+
+		  name = bfd_asymbol_name (*sym);
+		  if (*name == '_' && strcmp (name, "_gp") == 0)
+		    {
+		      ecoff_data (output_bfd)->gp = bfd_asymbol_value (*sym);
+		      break;
+		    }
+		}
+	    }
+
+	  if (i >= count)
+	    {
+	      /* Only get the error once.  */
+	      ecoff_data (output_bfd)->gp = 4;
+	      /* FIXME: How can we get the program name here?  */
+	      fprintf (stderr,
+		       "GP relative relocation when _gp not defined\n");
+	      return bfd_reloc_dangerous;
+	    }
+	}
+    }
+
+  if (bfd_is_com_section (symbol->section))
+    relocation = 0;
+  else
+    relocation = symbol->value;
+
+  relocation += symbol->section->output_section->vma;
+  relocation += symbol->section->output_offset;
+
+  if (reloc_entry->address > input_section->_cooked_size)
+    return bfd_reloc_outofrange;
+
+  insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
+
+  /* Set val to the offset into the section or symbol.  */
+  val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff;
+  if (val & 0x8000)
+    val -= 0x10000;
+
+  /* Adjust val for the final section location and GP value.  If we
+     are producing relocateable output, we don't want to do this for
+     an external symbol.  */
+  if (relocateable == false
+      || (symbol->flags & BSF_SECTION_SYM) != 0)
+    val += relocation - ecoff_data (output_bfd)->gp;
+
+  insn = (insn &~ 0xffff) | (val & 0xffff);
+  bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
+
+  if (relocateable != false)
+    reloc_entry->address += input_section->output_offset;
+
+  /* Make sure it fit in 16 bits.  */
+  if (val >= 0x8000 && val < 0xffff8000)
+    return bfd_reloc_outofrange;
+
+  return bfd_reloc_ok;
+}
+
+/* Get the howto structure for a generic reloc type.  */
+
+static CONST struct reloc_howto_struct *
+mips_bfd_reloc_type_lookup (abfd, code)
+     bfd *abfd;
+     bfd_reloc_code_real_type code;
+{
+  int mips_type;
+
+  switch (code)
+    {
+    case BFD_RELOC_16:
+      mips_type = MIPS_R_REFHALF;
+      break;
+    case BFD_RELOC_32:
+      mips_type = MIPS_R_REFWORD;
+      break;
+    case BFD_RELOC_MIPS_JMP:
+      mips_type = MIPS_R_JMPADDR;
+      break;
+    case BFD_RELOC_HI16_S:
+      mips_type = MIPS_R_REFHI;
+      break;
+    case BFD_RELOC_LO16:
+      mips_type = MIPS_R_REFLO;
+      break;
+    case BFD_RELOC_MIPS_GPREL:
+      mips_type = MIPS_R_GPREL;
+      break;
+    default:
+      return (CONST struct reloc_howto_struct *) NULL;
+    }
+
+  return &mips_howto_table[mips_type];
+}
 
 #ifdef HOST_IRIX4
 
@@ -411,28 +844,87 @@ ecoff_core_file_matches_executable_p (core_bfd, exec_bfd)
   _bfd_dummy_core_file_matches_executable_p
 #endif
 
-/* This is the COFF backend structure.  The backend_data field of the
-   bfd_target structure is set to this.  The section reading code in
-   coffgen.c uses this structure.  */
-
-static CONST bfd_coff_backend_data mips_ecoff_std_swap_table = {
-  (void (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_in */
-  (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_in */
-  (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_in */
-  (unsigned (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_out */
-  (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_out */
-  (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_out */
-  (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* reloc_out */
-  mips_ecoff_swap_filehdr_out, mips_ecoff_swap_aouthdr_out,
-  mips_ecoff_swap_scnhdr_out,
-  FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true,
-  mips_ecoff_swap_filehdr_in, mips_ecoff_swap_aouthdr_in,
-  mips_ecoff_swap_scnhdr_in, mips_ecoff_bad_format_hook,
-  ecoff_set_arch_mach_hook, mips_ecoff_mkobject_hook,
-  ecoff_styp_to_sec_flags, ecoff_make_section_hook, ecoff_set_alignment_hook,
-  ecoff_slurp_symbol_table
+/* This is the ECOFF backend structure.  The backend field of the
+   target vector points to this.  */
+
+static const struct ecoff_backend_data mips_ecoff_backend_data =
+{
+  /* COFF backend structure.  */
+  {
+    (void (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_in */
+    (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_in */
+    (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_in */
+    (unsigned (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_out */
+    (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_out */
+    (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_out */
+    (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* reloc_out */
+    mips_ecoff_swap_filehdr_out, mips_ecoff_swap_aouthdr_out,
+    mips_ecoff_swap_scnhdr_out,
+    FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true,
+    mips_ecoff_swap_filehdr_in, mips_ecoff_swap_aouthdr_in,
+    mips_ecoff_swap_scnhdr_in, mips_ecoff_bad_format_hook,
+    ecoff_set_arch_mach_hook, mips_ecoff_mkobject_hook,
+    ecoff_styp_to_sec_flags, ecoff_make_section_hook, ecoff_set_alignment_hook,
+    ecoff_slurp_symbol_table, NULL, NULL
+  },
+  /* Supported architecture.  */
+  bfd_arch_mips,
+  /* Big endian magic number.  */
+  MIPS_MAGIC_BIG,
+  /* Little endian magic number.  */
+  MIPS_MAGIC_LITTLE,
+  /* Symbol table magic number.  */
+  magicSym,
+  /* Initial portion of armap string.  */
+  "__________",
+  /* Alignment of debugging information.  E.g., 4.  */
+  4,
+  /* The page boundary used to align sections in a demand-paged
+     executable file.  E.g., 0x1000.  */
+  0x1000,
+  /* Bitsize of constructor entries.  */
+  32,
+  /* Reloc to use for constructor entries.  */
+  &mips_howto_table[MIPS_R_REFWORD],
+  /* Sizes of external symbolic information.  */
+  sizeof (struct hdr_ext),
+  sizeof (struct dnr_ext),
+  sizeof (struct pdr_ext),
+  sizeof (struct sym_ext),
+  sizeof (struct opt_ext),
+  sizeof (struct fdr_ext),
+  sizeof (struct rfd_ext),
+  sizeof (struct ext_ext),
+  /* Functions to swap in external symbolic data.  */
+  ecoff_swap_hdr_in,
+  ecoff_swap_dnr_in,
+  ecoff_swap_pdr_in,
+  ecoff_swap_sym_in,
+  ecoff_swap_opt_in,
+  ecoff_swap_fdr_in,
+  ecoff_swap_rfd_in,
+  ecoff_swap_ext_in,
+  /* Functions to swap out external symbolic data.  */
+  ecoff_swap_hdr_out,
+  ecoff_swap_dnr_out,
+  ecoff_swap_pdr_out,
+  ecoff_swap_sym_out,
+  ecoff_swap_opt_out,
+  ecoff_swap_fdr_out,
+  ecoff_swap_rfd_out,
+  ecoff_swap_ext_out,
+  /* External reloc size.  */
+  RELSZ,
+  /* Reloc swapping functions.  */
+  mips_ecoff_swap_reloc_in,
+  mips_ecoff_swap_reloc_out,
+  /* Backend reloc tweaking.  */
+  mips_finish_reloc
 };
 
+/* Looking up a reloc type is MIPS specific.  */
+#define ecoff_bfd_reloc_type_lookup mips_bfd_reloc_type_lookup
+
 bfd_target ecoff_little_vec =
 {
   "ecoff-littlemips",		/* name */
@@ -450,21 +942,21 @@ bfd_target ecoff_little_vec =
   ' ',				/* ar_pad_char */
   15,				/* ar_max_namelen */
   4,				/* minimum alignment power */
-  _do_getl64, _do_getl_signed_64, _do_putl64,
-     _do_getl32, _do_getl_signed_32, _do_putl32,
-     _do_getl16, _do_getl_signed_16, _do_putl16, /* data */
-  _do_getl64, _do_getl_signed_64, _do_putl64,
-     _do_getl32, _do_getl_signed_32, _do_putl32,
-     _do_getl16, _do_getl_signed_16, _do_putl16, /* hdrs */
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
 
   {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
      ecoff_archive_p, _bfd_dummy_target},
-  {bfd_false, mips_ecoff_mkobject,  /* bfd_set_format */
+  {bfd_false, ecoff_mkobject,  /* bfd_set_format */
      _bfd_generic_mkarchive, bfd_false},
   {bfd_false, ecoff_write_object_contents, /* bfd_write_contents */
      _bfd_write_archive_contents, bfd_false},
   JUMP_TABLE (ecoff),
-  (PTR) &mips_ecoff_std_swap_table
+  (PTR) &mips_ecoff_backend_data
 };
 
 bfd_target ecoff_big_vec =
@@ -483,20 +975,20 @@ bfd_target ecoff_big_vec =
   ' ',				/* ar_pad_char */
   15,				/* ar_max_namelen */
   4,				/* minimum alignment power */
-  _do_getb64, _do_getb_signed_64, _do_putb64,
-     _do_getb32, _do_getb_signed_32, _do_putb32,
-     _do_getb16, _do_getb_signed_16, _do_putb16,
-  _do_getb64, _do_getb_signed_64, _do_putb64,
-     _do_getb32, _do_getb_signed_32, _do_putb32,
-     _do_getb16, _do_getb_signed_16, _do_putb16,
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
  {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
     ecoff_archive_p, ecoff_core_file_p},
- {bfd_false, mips_ecoff_mkobject, /* bfd_set_format */
+ {bfd_false, ecoff_mkobject, /* bfd_set_format */
     _bfd_generic_mkarchive, bfd_false},
  {bfd_false, ecoff_write_object_contents, /* bfd_write_contents */
     _bfd_write_archive_contents, bfd_false},
   JUMP_TABLE(ecoff),
-  (PTR) &mips_ecoff_std_swap_table
+  (PTR) &mips_ecoff_backend_data
   /* Note that there is another bfd_target just above this one.  If
      you are adding initializers here, you should be adding them there
      as well.  */
diff --git a/bfd/elf32-target.h b/bfd/elf32-target.h
index 27bad81..7e4b8dc 100644
--- a/bfd/elf32-target.h
+++ b/bfd/elf32-target.h
@@ -142,14 +142,14 @@ bfd_target TARGET_BIG_SYM =
   3,
 
   /* Routines to byte-swap various sized integers from the data sections */
-  _do_getb64, _do_getb_signed_64, _do_putb64,
-    _do_getb32, _do_getb_signed_32, _do_putb32,
-    _do_getb16, _do_getb_signed_16, _do_putb16,
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+    bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 
   /* Routines to byte-swap various sized integers from the file headers */
-  _do_getb64, _do_getb_signed_64, _do_putb64,
-    _do_getb32, _do_getb_signed_32, _do_putb32,
-    _do_getb16, _do_getb_signed_16, _do_putb16,
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+    bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 
   /* bfd_check_format: check the format of a file being read */
   { _bfd_dummy_target,		/* unknown format */
@@ -224,14 +224,14 @@ bfd_target TARGET_LITTLE_SYM =
   3,
 
   /* Routines to byte-swap various sized integers from the data sections */
-  _do_getl64, _do_getl_signed_64, _do_putl64,
-    _do_getl32, _do_getl_signed_32, _do_putl32,
-    _do_getl16, _do_getl_signed_16, _do_putl16,
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+    bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 
   /* Routines to byte-swap various sized integers from the file headers */
-  _do_getl64, _do_getl_signed_64, _do_putl64,
-    _do_getl32, _do_getl_signed_32, _do_putl32,
-    _do_getl16, _do_getl_signed_16, _do_putl16,
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+    bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 
   /* bfd_check_format: check the format of a file being read */
   { _bfd_dummy_target,		/* unknown format */
diff --git a/bfd/elf64-target.h b/bfd/elf64-target.h
index 212c029..fd5f5e1 100644
--- a/bfd/elf64-target.h
+++ b/bfd/elf64-target.h
@@ -120,14 +120,14 @@ bfd_target TARGET_BIG_SYM =
   3,
 
   /* Routines to byte-swap various sized integers from the data sections */
-  _do_getb64, _do_getb_signed_64, _do_putb64,
-    _do_getb32, _do_getb_signed_32, _do_putb32,
-    _do_getb16, _do_getb_signed_16, _do_putb16,
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+    bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 
   /* Routines to byte-swap various sized integers from the file headers */
-  _do_getb64, _do_getb_signed_64, _do_putb64,
-    _do_getb32, _do_getb_signed_32, _do_putb32,
-    _do_getb16, _do_getb_signed_16, _do_putb16,
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+    bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 
   /* bfd_check_format: check the format of a file being read */
   { _bfd_dummy_target,		/* unknown format */
@@ -202,14 +202,14 @@ bfd_target TARGET_LITTLE_SYM =
   3,
 
   /* Routines to byte-swap various sized integers from the data sections */
-  _do_getl64, _do_getl_signed_64, _do_putl64,
-    _do_getl32, _do_getl_signed_32, _do_putl32,
-    _do_getl16, _do_getl_signed_16, _do_putl16,
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+    bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 
   /* Routines to byte-swap various sized integers from the file headers */
-  _do_getl64, _do_getl_signed_64, _do_putl64,
-    _do_getl32, _do_getl_signed_32, _do_putl32,
-    _do_getl16, _do_getl_signed_16, _do_putl16,
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+    bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 
   /* bfd_check_format: check the format of a file being read */
   { _bfd_dummy_target,		/* unknown format */