patch-2.4.5 linux/arch/ppc/treeboot/mkirimg

• Lines: 368
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.4/linux/arch/ppc/treeboot/mkirimg
• Orig date: Mon May 15 14:53:30 2000

diff -u --recursive --new-file v2.4.4/linux/arch/ppc/treeboot/mkirimg linux/arch/ppc/treeboot/mkirimg
@@ -1,367 +0,0 @@
-#!/usr/bin/perl
-#
-#    Copyright (c) 1998-1999 TiVo, Inc.
-#      Original ELF parsing code.
-#
-#    Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
-#      Original code from 'mkevimg'.
-#
-#    Module name: mkirimg
-#
-#    Description:
-#      Reads an ELF file and assigns global variables 'imageSect_start',
-#      'imageSect_size', 'initrdSect_start', and 'initrdSect_size' from
-#      the "image" and "initrd" section header information. It then
-#      rewrites the input ELF file with assigned globals to an output
-#      file.
-#
-#      An input file, "irSectStart.txt" has the memory address of
-#      'irSectStart'. The irSectStart memory address is used to find
-#      the global variables in the ".data" section of the ELF file.
-#      The 'irSectStart' and the above global variables are defined
-#      in "irSect.c".
-#
-#
-
-use File::Basename;
-use Getopt::Std;
-
-#
-# usage()
-#
-# Description:
-#   This routine prints out the proper command line usage for this program
-#
-# Input(s):
-#   status - Flag determining what usage information will be printed and what
-#            the exit status of the program will be after the information is
-#            printed.
-#
-# Output(s):
-#   N/A
-#
-# Returns:
-#   This subroutine does not return.
-#
-
-sub usage {
-  my($status);
-  $status = $_[0];
-
-  printf("Usage: %s [-hvV] <ELF input file> <Evaluation board output file> <irSectStart.txt file>\n",
-	 $program);
-
-  if ($status != 0) {
-    printf("Try `%s -h' for more information.\n", $program);
-  }
-
-  if ($status != 1) {
-    print("  -h             Print out this message and exit.\n");
-    print("  -v             Verbose. Print out lots of ELF information.\n");
-    print("  -V             Print out version information and exit.\n");
-  }
-
-  exit($status);
-}
-
-#
-# version()
-#
-# Description:
-#   This routine prints out program version information
-#
-# Input(s):
-#   N/A
-#
-# Output(s):
-#   N/A
-#
-# Returns:
-#   This subroutine does not return.
-#
-
-sub version {
-  print("mkirimg Version 1.1.0\n");
-  print("Copyright (c) 1998-1999 TiVo, Inc.\n");
-  print("Copyright (c) 1999 Grant Erickson <grant\@lcse.umn.edu>\n");
-
-  exit (0);
-}
-
-#
-# file_check()
-#
-# Description:
-#   This routine checks an input file to ensure that it exists, is a
-#   regular file, and is readable.
-#
-# Input(s):
-#   file - Input file to be checked.
-#
-# Output(s):
-#   N/A
-#
-# Returns:
-#   0 if the file exists, is a regular file, and is readable, otherwise -1.
-#
-
-sub file_check {
-  my($file);
-  $file = $_[0];
-
-  if (!(-e $file)) {
-     printf("The file \"%s\" does not exist.\n", $file);
-     return (-1);
-  } elsif (!(-f $file)) {
-     printf("The file \"%s\" is not a regular file.\n", $file);
-     return (-1);
-  } elsif (!(-r $file)) {
-     printf("The file \"%s\" is not readable.\n", $file);
-     return (-1);
-  }
-
-  return (0);
-}
-
-#
-# decode_options()
-#
-# Description:
-#   This routine steps through the command-line arguments, parsing out
-#   recognzied options.
-#
-# Input(s):
-#   N/A
-#
-# Output(s):
-#   N/A
-#
-# Returns:
-#   N/A
-#
-
-sub decode_options {
-
-  if (!getopts("hvV")) {
-      usage(1);
-  }
-
-  if ($opt_h) {
-      usage(0);
-  }
-
-  if ($opt_V) {
-      version();
-      exit (0);
-  }
-
-  if ($opt_v) {
-      $verbose = 1;
-  }
-
-  if (!($ElfFile = shift(@ARGV))) {
-      usage(1);
-  }
-
-  if (!($OutputFile = shift(@ARGV))) {
-      usage (1);
-  }
-
-  if (!($IrFile = shift(@ARGV))) {
-      usage (1);
-  }
-
-  if (file_check($ElfFile)) {
-      exit(1);
-  }
-
-  if (file_check($IrFile)) {
-      exit(1);
-  }
-}
-
-#
-# ELF file and section header field numbers
-#
-
-require 'elf.pl';
-
-#
-# Main program body
-#
-
-{
-  $program = basename($0);
-  decode_options();
-
-  open(ELF, "<$ElfFile") || die "Cannot open input file";
-  open(OUTPUT, ">$OutputFile") || die "Cannot open output file";
-  open(IR, "$IrFile") || die "Cannot open input file";
-
-  $ElfFilesize = (-s $ElfFile);
-
-  if (read(ELF, $ibuf, $ElfFilesize) != $ElfFilesize) {
-    print("Failed to read ELF input file!\n");
-    exit(1);
-  }
-
-  if (read(IR, $irbuf, 8) != 8) {
-      print("Failed to read Ir input file!\n");
-      exit(1);
-  }
-
-  #
-  # Parse ELF header
-  #
-
-  @eh = unpack("a16n2N5n6", $ibuf);
-
-  #
-  # Make sure this is actually a PowerPC ELF file.
-  #
-
-  if (substr($eh[$e_ident], 0, 4) ne "\177ELF") {
-      printf("The file \"%s\" is not an ELF file.\n", $ElfFile);
-      exit (1);
-  } elsif ($eh[$e_machine] != 20) {
-      printf("The file \"%s\" is not a PowerPC ELF file.\n", $ElfFile);
-      exit (1);
-  }
-
-  #
-  # Find the section header for the string table.
-  #
-
-  $strtable_section_offset =  $eh[$e_shoff] +
-
-  $eh[$e_shstrndx] * $eh[$e_shentsize];
-
-  if ($verbose) {
-     printf("String table section header offset: 0x%x\n",
-     $strtable_section_offset);
-  }
-
-  #
-  # Find the start of the string table.
-  #
-
-  @strh = unpack("N10", substr($ibuf, $strtable_section_offset,
-			       $eh[$e_shentsize]));
-
-  if ($verbose) {
-     printf("Section name strings start at: 0x%x, %d bytes.\n",
-     $strh[$sh_offset], $strh[$sh_size]);
-  }
-
-  $names = substr($ibuf, $strh[$sh_offset], $strh[$sh_size]);
-
-  # Grab each section header and find '.data', 'image', and 
-  # 'initrd' sections in particular.
-
-  $off = $eh[$e_shoff];
-  $imageFound = 0;
-  $initrdFound = 0;
-  
-  for($i = 0; $i < $eh[$e_shnum]; $i++, $off += $eh[$e_shentsize]) {
-    @sh = unpack("N10", substr($ibuf, $off, $eh[$e_shentsize]));
-
-    # Take the first section name from the array returned by split.
-
-    ($name) = split(/\000/, substr($names, $sh[$sh_name]));
-
-    # Attempt to find the .data, image, and initrd sections
-
-    if ($name =~ /^\image$/) {
-      ($image_addr, $image_offset, $image_size) =
-	($sh[$sh_addr], $sh[$sh_offset], $sh[$sh_size]);
-      $imageFound = 1;
-
-    } elsif ($name =~ /^\initrd$/) {
-      ($initrd_addr, $initrd_offset, $initrd_size) =
-	($sh[$sh_addr], $sh[$sh_offset], $sh[$sh_size]);
-      $initrdFound = 1;
-
-    } elsif ($name =~ /^\.data$/) {
-      ($data_addr, $data_offset, $data_size) =
-	($sh[$sh_addr], $sh[$sh_offset], $sh[$sh_size]);
-
-    } elsif ($name =~ /^\.bss$/) {
-      ($bss_addr, $bss_offset, $bss_size) =
-	($sh[$sh_addr], $sh[$sh_offset], $sh[$sh_size]);
-
-    }
-   }
-
-  if ($verbose) {
-    printf("Data section   - Address: 0x%08x, Size: 0x%08x, File Offset 0x%08x\n",
-	   $data_addr, $data_size, $data_offset);
-    printf("Bss  section   - Address: 0x%08x, Size: 0x%08x, File Offset 0x%08x\n",
-	 $bss_addr, $bss_size, $bss_offset);
-   }
-
-  if ($verbose) {
-    if ($imageFound) {
-      printf("Image section  - Address: 0x%08x, Size: 0x%08x\n",
-	     $image_addr, $image_size);
-    } else {
-      printf("Image section not found in file: $ElfFile\n");
-    }
-
-    if ($initrdFound) {
-      printf("Initrd section - Address: 0x%08x, Size: 0x%08x\n",
-	     $initrd_addr, $initrd_size);
-    } else {
-      printf("Initrd section not found in file: $ElfFile\n");
-    }
-  }
-
-  # get file offset of irSectStart
-
-  $irSectStartoffset = hex ($irbuf);
-
-  if ($verbose) {
-    printf("irSectStartOffset Address: 0x%08x\n", $irSectStartoffset);
-  }
-
-  # get the offset of global variables 
-
-  $initialOffset = ($irSectStartoffset - $data_addr) + $data_offset + 4;
-
-  # write modified values to OUTPUT file
-
-  syswrite(OUTPUT, $ibuf, $initialOffset);
-
-  if ($imageFound) {
-    $testN = pack ("N2", $bss_addr + $bss_size, $image_size);
-    syswrite(OUTPUT, $testN, length($testN));
-    printf("Updated symbol \"imageSect_start\" to 0x%08x\n",
-	   $bss_addr + $bss_size);
-    printf("Updated symbol \"imageSect_size\" to 0x%08x\n", $image_size);
-  } else {
-    syswrite(OUTPUT, $ibuf, 8, $initialOffset);
-  }
-
-  if ($initrdFound) {
-    $testN = pack ("N2", $bss_addr + $bss_size + $image_size, $initrd_size);
-    syswrite(OUTPUT, $testN, length($testN));
-    printf("Updated symbol \"initrdSect_start\" to 0x%08x\n",
-	   $bss_addr + $bss_size + $image_size);
-    printf("Updated symbol \"initrdSect_size\" to 0x%08x\n", $initrd_size);
-  } else {
-    syswrite(OUTPUT, $ibuf,8, $initialOffset + 8);
-  }
-
-  syswrite(OUTPUT, $ibuf, $ElfFilesize - ($initialOffset + 16),
-	   $initialOffset + 16);
-
-  #
-  # Clean-up and leave
-  #
-
-  close (ELF);
-  close (OUTPUT);
-  close (IR);
-
-  exit (0);
-}
-