Add --binary-architecture switch to objcopy to allow the output architecture

to be set when the input file type is binary.

bfd/ChangeLog

@@ -1,3 +1,9 @@
+2001-03-12  Stefan Geuken <mail@stefan-geuken.de>
+
+	* binary.c (bfd_external_binary_architecture): Declare.
+	(binary_object_p): If bfd_external_binary_architecture is defined,
+	set the architecture to this string.
+
 2001-03-11  Philip Blundell  <philb@gnu.org>
 
 	* elf32-arm.h (elf32_arm_finish_dynamic_symbol): Don't make PLT

bfd/binary.c

@@ -55,6 +55,10 @@ static boolean binary_set_section_contents
   PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
 static int binary_sizeof_headers PARAMS ((bfd *, boolean));
 
+/* Set by external programs - specifies the BFD architecture
+   to use when creating binary BFDs.  */
+enum bfd_architecture bfd_external_binary_architecture = bfd_arch_unknown;
+
 /* Create a binary object.  Invoked via bfd_set_format.  */
 
 static boolean
@@ -101,6 +105,13 @@ binary_object_p (abfd)
 
   abfd->tdata.any = (PTR) sec;
 
+  if (bfd_get_arch_info (abfd) != NULL)
+    {
+      if ((bfd_get_arch_info (abfd)->arch == bfd_arch_unknown)
+          && (bfd_external_binary_architecture != bfd_arch_unknown))
+        bfd_set_arch_info (abfd, bfd_lookup_arch (bfd_external_binary_architecture, 0));
+    }
+  
   return abfd->xvec;
 }
 

binutils/ChangeLog

@@ -1,3 +1,12 @@
+2001-03-12  Stefan Geuken <mail@stefan-geuken.de>
+
+	* NEWS: Document addition of -B switch to objcopy.
+	* binutils.texi:  Document addition of -B switch to objcopy.
+	* objcopy.c: (copy_options): Add --binary-architecture.
+	(copy_usage): Document -B/--binary-architecture.
+	(copy_main): Support -B/--binary-architecture.  Set
+	bfd_external_binary_architecture.
+	
 2001-03-11  Andreas Jaeger  <aj@suse.de>
 
 	* readelf.c (guess_is_rela): Handle EM_S390_OLD.

binutils/NEWS

@@ -1,5 +1,10 @@
 -*- text -*-
 
+* New command line switch to objcopy -B (or --binary-architecture) which sets
+  the archiceture of the output file to the given argument.  This option only
+  makes sense, if the input target is binary.  Otherwise it is ignored.
+  By Stefan Geuken.
+
 * Support for PDP-11 by Lars Brinkhoff.
 
 * Add support for ARM v5t and v5te architectures and Intel's XScale ARM

binutils/binutils.texi

@@ -874,6 +874,7 @@ Show a summary of the options to @code{nm} and exit.
 objcopy [ -F @var{bfdname} | --target=@var{bfdname} ]
         [ -I @var{bfdname} | --input-target=@var{bfdname} ]
         [ -O @var{bfdname} | --output-target=@var{bfdname} ]
+        [ -B @var{bfdarch} | --binary-architecture=@var{bfdarch} ]
         [ -S | --strip-all ]  [ -g | --strip-debug ]
         [ -K @var{symbolname} | --keep-symbol=@var{symbolname} ]
         [ -N @var{symbolname} | --strip-symbol=@var{symbolname} ]
@@ -960,6 +961,17 @@ Use @var{bfdname} as the object format for both the input and the output
 file; i.e., simply transfer data from source to destination with no
 translation.  @xref{Target Selection}, for more information.
 
+@item -B @var{bfdarch}
+@itemx --binary-architecture=@var{bfdarch}
+Useful when transforming a raw binary input file into an object file.
+In this case the output architecture can be set to @var{bfdarch}. This
+option will be ignored if the input file has a known @var{bfdarch}. You
+can access this binary data inside a program by referencing the special
+symbols that are created by the conversion process.  These symbols are
+called _binary_@var{objfile}_start, _binary_@var{objfile}_end and
+_binary_@var{objfile}_size.  e.g. you can transform a picture file into
+an object file and then access it in your code using these symbols. 
+
 @item -j @var{sectionname}
 @itemx --only-section=@var{sectionname}
 Copy only the named section from the input file to the output file.

binutils/objcopy.c

@@ -252,6 +252,7 @@ static struct option copy_options[] =
   {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
   {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
   {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
+  {"binary-architecture", required_argument, 0, 'B'},
   {"byte", required_argument, 0, 'b'},
   {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
   {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
@@ -314,6 +315,9 @@ extern unsigned int Chunk;
    on by the --srec-forceS3 command line switch.  */
 extern boolean S3Forced;
 
+/* Defined in bfd/binary.c.  Used to set architecture of input binary files.  */
+extern enum bfd_architecture bfd_external_binary_architecture;
+
 static void
 copy_usage (stream, exit_status)
      FILE *stream;
@@ -324,6 +328,7 @@ copy_usage (stream, exit_status)
   fprintf (stream, _("\
   -I --input-target <bfdname>      Assume input file is in format <bfdname>\n\
   -O --output-target <bfdname>     Create an output file in format <bfdname>\n\
+  -B --binary-architecture <arch>  Set arch of output file, when input is binary\n\
   -F --target <bfdname>            Set both input and output format to <bfdname>\n\
      --debugging                   Convert debugging information, if possible\n\
   -p --preserve-dates              Copy modified/access timestamps to the output\n\
@@ -1813,6 +1818,7 @@ copy_main (argc, argv)
      int argc;
      char *argv[];
 {
+  char * binary_architecture = NULL;
   char *input_filename = NULL, *output_filename = NULL;
   char *input_target = NULL, *output_target = NULL;
   boolean show_version = false;
@@ -1821,7 +1827,7 @@ copy_main (argc, argv)
   struct section_list *p;
   struct stat statbuf;
 
-  while ((c = getopt_long (argc, argv, "b:i:I:j:K:N:s:O:d:F:L:R:SpgxXVvW:",
+  while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:R:SpgxXVvW:",
 			   copy_options, (int *) 0)) != EOF)
     {
       switch (c)
@@ -1832,6 +1838,10 @@ copy_main (argc, argv)
 	    fatal (_("byte number must be non-negative"));
 	  break;
 
+        case 'B':
+          binary_architecture = optarg;
+          break;
+
 	case 'i':
 	  interleave = atoi (optarg);
 	  if (interleave < 1)
@@ -2189,12 +2199,30 @@ copy_main (argc, argv)
   if (output_target == (char *) NULL)
     output_target = input_target;
 
-  if (preserve_dates)
+  if (binary_architecture != (char *) NULL)
     {
-      if (stat (input_filename, &statbuf) < 0)
-	fatal (_("Cannot stat: %s: %s"), input_filename, strerror (errno));
+      if (input_target && strcmp (input_target, "binary") == 0)
+        {
+          const bfd_arch_info_type * temp_arch_info;
+
+	  temp_arch_info = bfd_scan_arch (binary_architecture);
+
+          if (temp_arch_info != NULL)
+            bfd_external_binary_architecture = temp_arch_info->arch;
+          else
+            fatal (_("architecture %s unknown"), binary_architecture);
+        }
+      else
+	{
+	  non_fatal (_("Warning: input target 'binary' required for binary architecture parameter."));
+	  non_fatal (_(" Argument %s ignored"), binary_architecture);
+	}
     }
 
+  if (preserve_dates)
+    if (stat (input_filename, & statbuf) < 0)
+      fatal (_("Cannot stat: %s: %s"), input_filename, strerror (errno));
+
   /* If there is no destination file then create a temp and rename
      the result into the input.  */