Add support for 64bit NETBSD cores

3 files changed, 170 insertions, 130 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 0289a05..bde4f4f 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,11 @@
+2004-02-23  Mark Kettenis  <kettenis@gnu.org>
+
+	* libaout.h (enum machine_type): Add M_SPARC64_NETBSD and
+	M_X86_64_NETBSD.
+	* netbsd-core.c (M_SPARC64_OPENBSD): Define.
+	(netbsd_core_file_p): Set architecture from machine ID for
+	selected machines.
+
 2004-02-23  Jakub Jelinek  <jakub@redhat.com>
 
 	* elflink.h (size_dynamic_sections): If not adding DT_FLAGS and
diff --git a/bfd/libaout.h b/bfd/libaout.h
index 2b93dbf..960f9d0 100644
--- a/bfd/libaout.h
+++ b/bfd/libaout.h
@@ -1,6 +1,6 @@
 /* BFD back-end data structures for a.out (and similar) files.
    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003
+   2000, 2001, 2002, 2003, 2004
    Free Software Foundation, Inc.
    Written by Cygnus Support.
 
@@ -249,73 +249,74 @@ struct aout_backend_data
 
 struct internal_exec
 {
-    long a_info;		/* Magic number and flags, packed */
-    bfd_vma a_text;		/* length of text, in bytes  */
-    bfd_vma a_data;		/* length of data, in bytes  */
-    bfd_vma a_bss;		/* length of uninitialized data area in mem */
-    bfd_vma a_syms;		/* length of symbol table data in file */
-    bfd_vma a_entry;		/* start address */
-    bfd_vma a_trsize;		/* length of text's relocation info, in bytes */
-    bfd_vma a_drsize;		/* length of data's relocation info, in bytes */
-    /* Added for i960 */
-    bfd_vma a_tload;		/* Text runtime load address */
-    bfd_vma a_dload;		/* Data runtime load address */
-    unsigned char a_talign;	/* Alignment of text segment */
-    unsigned char a_dalign;	/* Alignment of data segment */
-    unsigned char a_balign;	/* Alignment of bss segment */
-    char a_relaxable;           /* Enough info for linker relax */
+  long a_info;			/* Magic number and flags, packed.  */
+  bfd_vma a_text;		/* Length of text, in bytes.  */
+  bfd_vma a_data;		/* Length of data, in bytes.  */
+  bfd_vma a_bss;		/* Length of uninitialized data area in mem.  */
+  bfd_vma a_syms;		/* Length of symbol table data in file.  */
+  bfd_vma a_entry;		/* Start address.  */
+  bfd_vma a_trsize;		/* Length of text's relocation info, in bytes.  */
+  bfd_vma a_drsize;		/* Length of data's relocation info, in bytes.  */
+  /* Added for i960 */
+  bfd_vma a_tload;		/* Text runtime load address.  */
+  bfd_vma a_dload;		/* Data runtime load address.  */
+  unsigned char a_talign;	/* Alignment of text segment.  */
+  unsigned char a_dalign;	/* Alignment of data segment.  */
+  unsigned char a_balign;	/* Alignment of bss segment.  */
+  char a_relaxable;           	/* Enough info for linker relax.  */
 };
 
 /* Magic number is written
-< MSB          >
-3130292827262524232221201918171615141312111009080706050403020100
-< FLAGS        >< MACHINE TYPE ><  MAGIC NUMBER                >
-*/
+   < MSB          >
+   3130292827262524232221201918171615141312111009080706050403020100
+   < FLAGS        >< MACHINE TYPE ><  MAGIC NUMBER                >  */
+
 /* Magic number for NetBSD is
-<MSB           >
-3130292827262524232221201918171615141312111009080706050403020100
-< FLAGS    >< MACHINE TYPE     ><  MAGIC NUMBER                >
-*/
+   <MSB           >
+   3130292827262524232221201918171615141312111009080706050403020100
+   < FLAGS    >< MACHINE TYPE     ><  MAGIC NUMBER                >  */
 
-enum machine_type {
+enum machine_type
+{
   M_UNKNOWN = 0,
   M_68010 = 1,
   M_68020 = 2,
   M_SPARC = 3,
   /* Skip a bunch so we don't run into any of SUN's numbers.  */
   /* Make these up for the ns32k.  */
-  M_NS32032 = (64),	/* ns32032 running ? */
-  M_NS32532 = (64 + 5),	/* ns32532 running mach */
-
+  M_NS32032 = (64),	  /* NS32032 running ?  */
+  M_NS32532 = (64 + 5),	  /* NS32532 running mach.  */
   M_386 = 100,
-  M_29K = 101,          /* AMD 29000 */
-  M_386_DYNIX = 102,	/* Sequent running dynix */
-  M_ARM = 103,		/* Advanced Risc Machines ARM */
-  M_SPARCLET = 131,	/* SPARClet = M_SPARC + 128 */
-  M_386_NETBSD = 134,	/* NetBSD/i386 binary */
-  M_68K_NETBSD = 135,	/* NetBSD/m68k binary */
-  M_68K4K_NETBSD = 136,	/* NetBSD/m68k4k binary */
-  M_532_NETBSD = 137,	/* NetBSD/ns32k binary */
-  M_SPARC_NETBSD = 138,	/* NetBSD/sparc binary */
-  M_PMAX_NETBSD = 139,	/* NetBSD/pmax (MIPS little-endian) binary */
-  M_VAX_NETBSD = 140,	/* NetBSD/vax binary */
-  M_ALPHA_NETBSD = 141,	/* NetBSD/alpha binary */
-  M_ARM6_NETBSD = 143,	/* NetBSD/arm32 binary */
-  M_SPARCLET_1 = 147,	/* 0x93, reserved */
-  M_VAX4K_NETBSD = 150,	/* NetBSD/vax 4K pages binary */
-  M_MIPS1 = 151,        /* MIPS R2000/R3000 binary */
-  M_MIPS2 = 152,        /* MIPS R4000/R6000 binary */
-  M_SPARCLET_2 = 163,	/* 0xa3, reserved */
-  M_SPARCLET_3 = 179,	/* 0xb3, reserved */
-  M_SPARCLET_4 = 195,	/* 0xc3, reserved */
-  M_HP200 = 200,	/* HP 200 (68010) BSD binary */
-  M_HP300 = (300 % 256), /* HP 300 (68020+68881) BSD binary */
-  M_HPUX = (0x20c % 256), /* HP 200/300 HPUX binary */
-  M_SPARCLET_5 = 211,	/* 0xd3, reserved */
-  M_SPARCLET_6 = 227,	/* 0xe3, reserved */
-  /*  M_SPARCLET_7 = 243	/ * 0xf3, reserved */
+  M_29K = 101,            /* AMD 29000.  */
+  M_386_DYNIX = 102,	  /* Sequent running dynix.  */
+  M_ARM = 103,		  /* Advanced Risc Machines ARM.  */
+  M_SPARCLET = 131,	  /* SPARClet = M_SPARC + 128.  */
+  M_386_NETBSD = 134,	  /* NetBSD/i386 binary.  */
+  M_68K_NETBSD = 135,	  /* NetBSD/m68k binary.  */
+  M_68K4K_NETBSD = 136,	  /* NetBSD/m68k4k binary.  */
+  M_532_NETBSD = 137,	  /* NetBSD/ns32k binary.  */
+  M_SPARC_NETBSD = 138,	  /* NetBSD/sparc binary.  */
+  M_PMAX_NETBSD = 139,	  /* NetBSD/pmax (MIPS little-endian) binary.  */
+  M_VAX_NETBSD = 140,	  /* NetBSD/vax binary.  */
+  M_ALPHA_NETBSD = 141,	  /* NetBSD/alpha binary.  */
+  M_ARM6_NETBSD = 143,	  /* NetBSD/arm32 binary.  */
+  M_SPARCLET_1 = 147,	  /* 0x93, reserved.  */
+  M_VAX4K_NETBSD = 150,	  /* NetBSD/vax 4K pages binary.  */
+  M_MIPS1 = 151,          /* MIPS R2000/R3000 binary.  */
+  M_MIPS2 = 152,          /* MIPS R4000/R6000 binary.  */
+  M_SPARC64_NETBSD = 156, /* NetBSD/sparc64 binary.  */
+  M_X86_64_NETBSD = 157,  /* NetBSD/amd64 binary.  */
+  M_SPARCLET_2 = 163,	  /* 0xa3, reserved.  */
+  M_SPARCLET_3 = 179,	  /* 0xb3, reserved.  */
+  M_SPARCLET_4 = 195,	  /* 0xc3, reserved.  */
+  M_HP200 = 200,	  /* HP 200 (68010) BSD binary.  */
+  M_HP300 = (300 % 256),  /* HP 300 (68020+68881) BSD binary.  */
+  M_HPUX = (0x20c % 256), /* HP 200/300 HPUX binary.  */
+  M_SPARCLET_5 = 211,	  /* 0xd3, reserved.  */
+  M_SPARCLET_6 = 227,	  /* 0xe3, reserved.  */
+/*M_SPARCLET_7 = 243	 / * 0xf3, reserved.  */
   M_SPARCLITE_LE = 243,
-  M_CRIS = 255		/* Axis CRIS binary.  */
+  M_CRIS = 255		  /* Axis CRIS binary.  */
 };
 
 #define N_DYNAMIC(exec) ((exec).a_info & 0x80000000)
@@ -362,7 +363,8 @@ enum machine_type {
  ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24))
 #endif
 
-typedef struct aout_symbol {
+typedef struct aout_symbol
+{
   asymbol symbol;
   short desc;
   char other;
@@ -373,9 +375,10 @@ typedef struct aout_symbol {
    Various things depend on this struct being around any time an a.out
    file is being handled.  An example is dbxread.c in GDB.  */
 
-struct aoutdata {
-  struct internal_exec *hdr;		/* exec file header */
-  aout_symbol_type *symbols;		/* symtab for input bfd */
+struct aoutdata
+{
+  struct internal_exec *hdr;		/* Exec file header.  */
+  aout_symbol_type *symbols;		/* Symtab for input bfd.  */
 
   /* For ease, we do this.  */
   asection *textsec;
@@ -445,30 +448,31 @@ struct aoutdata {
   bfd_vma *local_got_offsets;
 };
 
-struct  aout_data_struct {
-    struct aoutdata a;
-    struct internal_exec e;
+struct  aout_data_struct
+{
+  struct aoutdata a;
+  struct internal_exec e;
 };
 
-#define	adata(bfd)		((bfd)->tdata.aout_data->a)
-#define	exec_hdr(bfd)		(adata(bfd).hdr)
-#define	obj_aout_symbols(bfd)	(adata(bfd).symbols)
-#define	obj_textsec(bfd)	(adata(bfd).textsec)
-#define	obj_datasec(bfd)	(adata(bfd).datasec)
-#define	obj_bsssec(bfd)		(adata(bfd).bsssec)
-#define	obj_sym_filepos(bfd)	(adata(bfd).sym_filepos)
-#define	obj_str_filepos(bfd)	(adata(bfd).str_filepos)
-#define	obj_reloc_entry_size(bfd) (adata(bfd).reloc_entry_size)
-#define	obj_symbol_entry_size(bfd) (adata(bfd).symbol_entry_size)
-#define obj_aout_subformat(bfd)	(adata(bfd).subformat)
-#define obj_aout_external_syms(bfd) (adata(bfd).external_syms)
-#define obj_aout_external_sym_count(bfd) (adata(bfd).external_sym_count)
-#define obj_aout_sym_window(bfd) (adata(bfd).sym_window)
-#define obj_aout_external_strings(bfd) (adata(bfd).external_strings)
-#define obj_aout_external_string_size(bfd) (adata(bfd).external_string_size)
-#define obj_aout_string_window(bfd) (adata(bfd).string_window)
-#define obj_aout_sym_hashes(bfd) (adata(bfd).sym_hashes)
-#define obj_aout_dynamic_info(bfd) (adata(bfd).dynamic_info)
+#define	adata(bfd)		           ((bfd)->tdata.aout_data->a)
+#define	exec_hdr(bfd)		           (adata (bfd).hdr)
+#define	obj_aout_symbols(bfd)	           (adata (bfd).symbols)
+#define	obj_textsec(bfd)	           (adata (bfd).textsec)
+#define	obj_datasec(bfd)	           (adata (bfd).datasec)
+#define	obj_bsssec(bfd)		           (adata (bfd).bsssec)
+#define	obj_sym_filepos(bfd)	           (adata (bfd).sym_filepos)
+#define	obj_str_filepos(bfd)	           (adata (bfd).str_filepos)
+#define	obj_reloc_entry_size(bfd)          (adata (bfd).reloc_entry_size)
+#define	obj_symbol_entry_size(bfd)         (adata (bfd).symbol_entry_size)
+#define obj_aout_subformat(bfd)	           (adata (bfd).subformat)
+#define obj_aout_external_syms(bfd)        (adata (bfd).external_syms)
+#define obj_aout_external_sym_count(bfd)   (adata (bfd).external_sym_count)
+#define obj_aout_sym_window(bfd)           (adata (bfd).sym_window)
+#define obj_aout_external_strings(bfd)     (adata (bfd).external_strings)
+#define obj_aout_external_string_size(bfd) (adata (bfd).external_string_size)
+#define obj_aout_string_window(bfd)        (adata (bfd).string_window)
+#define obj_aout_sym_hashes(bfd)           (adata (bfd).sym_hashes)
+#define obj_aout_dynamic_info(bfd)         (adata (bfd).dynamic_info)
 
 /* We take the address of the first element of an asymbol to ensure that the
    macro is only ever applied to an asymbol.  */
@@ -630,7 +634,7 @@ extern bfd_boolean NAME(aout,bfd_free_cached_info)
 #ifndef WRITE_HEADERS
 #define WRITE_HEADERS(abfd, execp)					      \
       {									      \
-	bfd_size_type text_size; /* dummy vars */			      \
+	bfd_size_type text_size; /* Dummy vars.  */			      \
 	file_ptr text_end;						      \
 	if (adata(abfd).magic == undecided_magic)			      \
 	  NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);     \
@@ -645,7 +649,7 @@ extern bfd_boolean NAME(aout,bfd_free_cached_info)
 	NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes);	      \
 									      \
 	if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0		      \
-	    || bfd_bwrite ((PTR) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, \
+	    || bfd_bwrite ((PTR) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE,\
 			  abfd) != EXEC_BYTES_SIZE)			      \
 	  return FALSE;							      \
 	/* Now write out reloc info, followed by syms and strings.  */	      \
@@ -660,12 +664,12 @@ extern bfd_boolean NAME(aout,bfd_free_cached_info)
 	      return FALSE;						      \
 	  }								      \
 									      \
-	if (bfd_seek (abfd, (file_ptr) (N_TRELOFF(*execp)), SEEK_SET) != 0)   \
+	if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (*execp)), SEEK_SET) != 0)  \
 	  return FALSE;						      	      \
 	if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd)))         \
 	  return FALSE;						      	      \
 									      \
-	if (bfd_seek (abfd, (file_ptr) (N_DRELOFF(*execp)), SEEK_SET) != 0)   \
+	if (bfd_seek (abfd, (file_ptr) (N_DRELOFF (*execp)), SEEK_SET) != 0)  \
 	  return FALSE;						      	      \
 	if (!NAME(aout,squirt_out_relocs) (abfd, obj_datasec (abfd)))         \
 	  return FALSE;						      	      \
diff --git a/bfd/netbsd-core.c b/bfd/netbsd-core.c
index 7498990..adadead 100644
--- a/bfd/netbsd-core.c
+++ b/bfd/netbsd-core.c
@@ -1,44 +1,47 @@
 /* BFD back end for NetBSD style core files
    Copyright 1988, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000, 2001,
-   2002
+   2002, 2004
    Free Software Foundation, Inc.
    Written by Paul Kranenburg, EUR
 
-This file is part of BFD, the Binary File Descriptor library.
+   This file is part of BFD, the Binary File Descriptor library.
 
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #include "bfd.h"
 #include "sysdep.h"
 #include "libbfd.h"
-#include "libaout.h"           /* BFD a.out internal data structures */
+#include "libaout.h"           /* BFD a.out internal data structures.  */
 
 #include <sys/param.h>
 #include <sys/dir.h>
 #include <signal.h>
 #include <sys/core.h>
 
-/*
- * FIXME: On NetBSD/sparc CORE_FPU_OFFSET should be (sizeof (struct trapframe))
- */
+/* The machine ID for OpenBSD/sparc64 and older versions of
+   NetBSD/sparc64 overlaps with M_MIPS1.  */
+#define M_SPARC64_OPENBSD	M_MIPS1
 
-struct netbsd_core_struct {
-	struct core core;
+/* FIXME: On NetBSD/sparc CORE_FPU_OFFSET should be (sizeof (struct trapframe)).  */
+
+struct netbsd_core_struct
+{
+  struct core core;
 } *rawptr;
 
-/* forward declarations */
+/* Forward declarations.  */
 
 static const bfd_target *netbsd_core_file_p
   PARAMS ((bfd *abfd));
@@ -68,7 +71,7 @@ netbsd_core_file_p (abfd)
   val = bfd_bread ((void *) &core, amt, abfd);
   if (val != sizeof core)
     {
-      /* Too small to be a core file */
+      /* Too small to be a core file.  */
       bfd_set_error (bfd_error_wrong_format);
       return 0;
     }
@@ -160,6 +163,27 @@ netbsd_core_file_p (abfd)
 #endif
     }
 
+ /* Set architecture from machine ID.  */
+ switch (CORE_GETMID (core))
+   {
+   case M_X86_64_NETBSD:
+     bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x86_64);
+     break;
+
+   case M_386_NETBSD:
+     bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_i386_i386);
+     break;
+
+   case M_SPARC_NETBSD:
+     bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
+     break;
+
+   case M_SPARC64_NETBSD:
+   case M_SPARC64_OPENBSD:
+     bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc_v9);
+     break;
+   }
+ 
   /* OK, we believe you.  You're a core file (sure, sure).  */
   return abfd->xvec;
 
@@ -191,15 +215,19 @@ netbsd_core_file_matches_executable_p  (core_bfd, exec_bfd)
      bfd *core_bfd ATTRIBUTE_UNUSED;
      bfd *exec_bfd ATTRIBUTE_UNUSED;
 {
-  return TRUE;		/* FIXME, We have no way of telling at this point */
+  /* FIXME, We have no way of telling at this point.  */
+  return TRUE;
 }
 
 /* If somebody calls any byte-swapping routines, shoot them.  */
+
 static void
 swap_abort ()
 {
-  abort (); /* This way doesn't require any declaration for ANSI to fuck up */
+ /* This way doesn't require any declaration for ANSI to fuck up.  */
+  abort ();
 }
+
 #define	NO_GET	((bfd_vma (*) PARAMS ((   const bfd_byte *))) swap_abort )
 #define	NO_PUT	((void    (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
 #define	NO_SIGNED_GET \
@@ -209,33 +237,33 @@ const bfd_target netbsd_core_vec =
   {
     "netbsd-core",
     bfd_target_unknown_flavour,
-    BFD_ENDIAN_UNKNOWN,		/* target byte order */
-    BFD_ENDIAN_UNKNOWN,		/* target headers byte order */
-    (HAS_RELOC | EXEC_P |	/* object flags */
+    BFD_ENDIAN_UNKNOWN,		/* Target byte order.  */
+    BFD_ENDIAN_UNKNOWN,		/* Target headers byte order.  */
+    (HAS_RELOC | EXEC_P |	/* Object flags.  */
      HAS_LINENO | HAS_DEBUG |
      HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
-    (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
-    0,			                                   /* symbol prefix */
-    ' ',						   /* ar_pad_char */
-    16,							   /* ar_max_namelen */
-    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 64 bit data */
-    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 32 bit data */
-    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 16 bit data */
-    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 64 bit hdrs */
-    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 32 bit hdrs */
-    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 16 bit hdrs */
-
-    {				/* bfd_check_format */
-     _bfd_dummy_target,		/* unknown format */
-     _bfd_dummy_target,		/* object file */
-     _bfd_dummy_target,		/* archive */
-     netbsd_core_file_p		/* a core file */
+    (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags.  */
+    0,			                                   /* Symbol prefix.  */
+    ' ',						   /* ar_pad_char.  */
+    16,							   /* ar_max_namelen.  */
+    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 64 bit data.  */
+    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 32 bit data.  */
+    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 16 bit data.  */
+    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 64 bit hdrs.  */
+    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 32 bit hdrs.  */
+    NO_GET, NO_SIGNED_GET, NO_PUT,	/* 16 bit hdrs.  */
+
+    {					/* bfd_check_format.  */
+     _bfd_dummy_target,			/* Unknown format.  */
+     _bfd_dummy_target,			/* Object file.  */
+     _bfd_dummy_target,			/* Archive.  */
+     netbsd_core_file_p			/* A core file.  */
     },
-    {				/* bfd_set_format */
+    {					/* bfd_set_format.  */
      bfd_false, bfd_false,
      bfd_false, bfd_false
     },
-    {				/* bfd_write_contents */
+    {					/* bfd_write_contents.  */
      bfd_false, bfd_false,
      bfd_false, bfd_false
     },
@@ -252,5 +280,5 @@ const bfd_target netbsd_core_vec =
 
     NULL,
 
-    (PTR) 0			/* backend_data */
+    (PTR) 0			        /* Backend_data.  */
 };