--- /dev/null
+#!/usr/bin/env python
+# Script to check a bios image and report info on it.
+#
+# Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
+#
+# This file may be distributed under the terms of the GNU GPLv3 license.
+
+import sys
+import layoutrom
+
+def main():
+ # Get args
+ objinfo, rawfile, outfile = sys.argv[1:]
+
+ # Read in symbols
+ objinfofile = open(objinfo, 'rb')
+ symbols = layoutrom.parseObjDump(objinfofile, 'in')[1]
+
+ # Read in raw file
+ f = open(rawfile, 'rb')
+ rawdata = f.read()
+ f.close()
+ datasize = len(rawdata)
+ finalsize = 64*1024
+ if datasize > 64*1024:
+ finalsize = 128*1024
+ if datasize > 128*1024:
+ finalsize = 256*1024
+
+ # Sanity checks
+ start = symbols['code32flat_start'].offset
+ end = symbols['code32flat_end'].offset
+ expend = layoutrom.BUILD_BIOS_ADDR + layoutrom.BUILD_BIOS_SIZE
+ if end != expend:
+ print "Error! Code does not end at 0x%x (got 0x%x)" % (
+ expend, end)
+ sys.exit(1)
+ if datasize > finalsize:
+ print "Error! Code is too big (0x%x vs 0x%x)" % (
+ datasize, finalsize)
+ sys.exit(1)
+ expdatasize = end - start
+ if datasize != expdatasize:
+ print "Error! Unknown extra data (0x%x vs 0x%x)" % (
+ datasize, expdatasize)
+ sys.exit(1)
+
+ # Print statistics
+ runtimesize = datasize
+ if '_reloc_abs_start' in symbols:
+ runtimesize = end - symbols['code32init_end'].offset
+ print "Total size: %d Fixed: %d Free: %d (used %.1f%% of %dKiB rom)" % (
+ datasize, runtimesize, finalsize - datasize
+ , (datasize / float(finalsize)) * 100.0
+ , finalsize / 1024)
+
+ # Write final file
+ f = open(outfile, 'wb')
+ f.write(("\0" * (finalsize - datasize)) + rawdata)
+ f.close()
+
+if __name__ == '__main__':
+ main()
