# This file may be distributed under the terms of the GNU GPLv3 license.
import sys
+import layoutrom
def main():
- # Read in symbols (that are valid)
+ # Get args
+ objinfo, rawfile, outfile = sys.argv[1:]
+
+ # Read in symbols
+ objinfofile = open(objinfo, 'rb')
+ symbols = layoutrom.parseObjDump(objinfofile)[1]
syms = {}
- for line in sys.stdin.readlines():
- try:
- addr, type, sym = line.split()
- syms[sym] = int(addr, 16)
- except:
- pass
-
- c16s = syms['code16_start'] + 0xf0000
- c32s = syms['final_code16_start']
- if c16s != c32s:
+ for name, (addr, section) in symbols.items():
+ syms[name] = addr
+
+ # 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
+
+ # Sanity checks
+ c16e = syms['code16_end'] + 0xf0000
+ f16e = syms['final_code16_end']
+ if c16e != f16e:
print "Error! 16bit code moved during linking (0x%x vs 0x%x)" % (
- c32s, c16s)
+ c16e, f16e)
+ sys.exit(1)
+ if datasize > finalsize:
+ print "Error! Code is too big (0x%x vs 0x%x)" % (
+ datasize, finalsize)
sys.exit(1)
- sizefree = syms['freespace1_end'] - syms['freespace1_start']
- size16 = syms['code16_end'] - syms['code16_start'] - sizefree
+ # Print statistics
+ sizefree = syms['freespace_end'] - syms['freespace_start']
+ size16 = syms['code16_end'] - syms['code16_start']
size32 = syms['code32_end'] - syms['code32_start']
totalc = size16+size32
- tablefree = syms['freespace2_end'] - syms['freespace2_start']
print "16bit size: %d" % size16
print "32bit size: %d" % size32
- print "Total size: %d Free space: %d Percent used: %.1f%%" % (
- totalc, sizefree
- , (totalc / float(size16+size32+sizefree)) * 100.0)
- print "BIOS table space: %d" % tablefree
+ print "Total size: %d Free space: %d Percent used: %.1f%% (%dKiB rom)" % (
+ totalc, sizefree + finalsize - datasize
+ , (totalc / 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()