grml...

[seabios.git] / tools / checkrom.py

diff --git a/tools/checkrom.py b/tools/checkrom.py
index 032783b6098e0c4ea64bfb1db1f7481aa8da2fd5..69d65e8d935fd5a734c72704544a7ada79516a61 100755 (executable)
--- a/tools/checkrom.py
+++ b/tools/checkrom.py
@@ -6,31 +6,58 @@
 # 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)
-    syms = {}
-    for line in sys.stdin.readlines():
-        try:
-            addr, type, sym = line.split()
-            syms[sym] = int(addr, 16)
-        except:
-            pass
-
-    c16s = syms['code16_start']
-    c32s = syms['_code32_code16_start']
-    if c16s != c32s:
-        print "Error!  16bit code moved during linking (0x%x vs 0x%x)" % (
-            c32s, c16s)
+    # 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)
 
-    size16 = syms['code16_end'] - syms['code16_start']
-    size32 = syms['code32_end'] - syms['code32_start']
-    sizefree = syms['freespace1_end'] - syms['freespace1_start']
-    print "16bit C-code size: %d" % size16
-    print "32bit C-code size: %d" % size32
-    print "Total C-code size: %d" % (size16+size32)
-    print "Free C-code space: %d" % sizefree
+    # Write final file
+    f = open(outfile, 'wb')
+    f.write(("\0" * (finalsize - datasize)) + rawdata)
+    f.close()
 
 if __name__ == '__main__':
     main()