fwcutter: Add a stupid script to generate fwcutter_list.h entries from .o files

[b43-tools.git] / fwcutter / mklist.py

diff --git a/fwcutter/mklist.py b/fwcutter/mklist.py
new file mode 100755 (executable)
index 0000000..1bc8351
--- /dev/null
+++ b/fwcutter/mklist.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+#
+#  Script for creating a "struct extract" list for fwcutter_list.h
+#
+#  Copyright (c) 2008 Michael Buesch <mb@bu3sch.de>
+#
+#   Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions
+#   are met:
+#
+#     1. Redistributions of source code must retain the above copyright
+#        notice, this list of conditions and the following disclaimer.
+#     2. Redistributions in binary form must reproduce the above
+#        copyright notice, this list of conditions and the following
+#        disclaimer in the documentation and/or other materials provided
+#        with the distribution.
+#
+#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+#   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+#   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+#   DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+#   DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+#   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+#   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+#   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+#   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+#   EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import sys
+import os
+import re
+import md5
+
+if len(sys.argv) != 2:
+       print "Usage: %s path/to/wl.o" % sys.argv[0]
+       sys.exit(1)
+fn = sys.argv[1]
+
+pipe = os.popen("objdump -t %s" % fn)
+syms = pipe.readlines()
+pipe = os.popen("objdump --headers %s" % fn)
+headers = pipe.readlines()
+
+# Get the .rodata fileoffset
+rodata_fileoffset = None
+rofileoff_re = re.compile(r"\d+\s+\.rodata\s+[0-9a-fA-F]+\s+[0-9a-fA-F]+\s+[0-9a-fA-F]+\s+([0-9a-fA-F]+)\s+.")
+for line in headers:
+       line = line.strip()
+       m = rofileoff_re.match(line)
+       if m:
+               rodata_fileoffset = int(m.group(1), 16)
+               break
+if rodata_fileoffset == None:
+       print "ERROR: Could not find .rodata fileoffset"
+       sys.exit(1)
+
+md5sum = md5.md5(file(fn, "r").read())
+
+print "static struct extract _%s[] =" % md5sum.hexdigest()
+print "{"
+
+sym_re = re.compile(r"([0-9a-fA-F]+)\s+g\s+O\s+\.rodata\s+([0-9a-fA-F]+) d11([-_\s\w0-9]+)")
+ucode_re = re.compile(r"ucode(\d+)")
+
+for sym in syms:
+       sym = sym.strip()
+       m = sym_re.match(sym)
+       if not m:
+               continue
+       pos = int(m.group(1), 16) + rodata_fileoffset
+       size = int(m.group(2), 16)
+       name = m.group(3)
+       if name[-2:] == "sz":
+               continue
+
+       type = None
+       if "initvals" in name:
+               type = "EXT_IV"
+               size -= 8
+       if "pcm" in name:
+               type = "EXT_PCM"
+       m = ucode_re.match(name)
+       if m:
+               corerev = int(m.group(1))
+               if corerev <= 4:
+                       type = "EXT_UCODE_1"
+               elif corerev >= 5 and corerev <= 14:
+                       type = "EXT_UCODE_2"
+               else:
+                       type = "EXT_UCODE_3"
+       if not type:
+               print "\t/* ERROR: Could not guess data type for: %s */" % name
+               continue
+
+       print "\t{ .name = \"%s\", .offset = 0x%X, .type = %s, .length = 0x%X }," % (name, pos, type, size)
+print "\tEXTRACT_LIST_END"
+print "};"