1 files changed, 143 insertions, 0 deletions

diff --git a/tools/debugscripts/kld_deb.py b/tools/debugscripts/kld_deb.py
new file mode 100644
index 000000000000..3d8e01d70f9d
--- /dev/null
+++ b/tools/debugscripts/kld_deb.py
@@ -0,0 +1,143 @@
+#!/usr/local/bin/python
+#
+# Copyright 2004 John-Mark Gurney
+# All rights reserved.
+#
+# 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 BY THE AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR 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.
+#
+# $FreeBSD$
+
+import sys
+import os
+import popen2
+import re
+
+gdb_cmd = 'gdb -q -k -s %(p)s/kernel.debug -e %(p)s/kernel'
+#GDB regex
+filenamere = re.compile(r'filename\s+=\s+0x[0-9a-f]+\s("(?P<fn>[^"]+)"|(?P<error><[^>]*>))', re.M)
+addressre = re.compile(r'address\s+=\s+(?P<ad>0x[0-9a-f]+)', re.M)
+nextre = re.compile(r'tqe_next\s+=\s+(?P<ad>0x[0-9a-f]+)', re.M)
+printre = re.compile(r'\$\d+\s+=\s+')
+
+#Paths to search for ko's/debugs
+kld_debug_paths = []
+
+if len(sys.argv[1:]) < 2:
+	print 'Usage: prog <kerncomp> <core> [<paths>]'
+	sys.exit(1)
+
+#Get the base modules path
+pfs = sys.argv[1].split('/')
+try:
+	i = 0
+	while 1:                 
+		i = i + pfs[i:].index('sys') + 1
+except:
+	pass
+
+if i == -1:
+	sys.stderr.write("No sys dir in kernel source path: %s\n" % sys.argv[1])
+	sys.exit(0)
+
+kld_debug_paths.append('/'.join(pfs[:i] + ['modules']))
+kld_debug_paths.append(sys.argv[1])
+#kld_debug_paths.append(sys.argv[3:])
+gdb_cmd = gdb_cmd % {'p': sys.argv[1] }
+gdb_cmd += ' -c %s | tee /tmp/gdb.log' % sys.argv[2]
+
+#Start gdb
+gdb = popen2.popen4(gdb_cmd)
+
+def searchfor(inp, re, j = 0, l = None):
+	"""searchfor(inp, re, j, l):  Searches for regex re in inp.  It will
+automaticly add more lines.  If j is set, the lines will be joined together.
+l can provide a starting line to help search against.  Return value is a
+tupple of the last line, and the match if any."""
+	ret = None
+	if not l:
+		l = inp.readline()
+	ret = re.search(l)
+	while l and not ret:
+		if j:
+			l += inp.readline()
+		else:
+			l = inp.readline()
+		ret = re.search(l)
+
+	return (l, ret)
+
+def get_addresses(inp, out):
+	"""get_addresses(inp, out):  It will search for addresses from gdb.
+inp and out, are the gdb input and output respectively.  Return value is
+a list of tupples.  The tupples contain the filename and the address the
+filename was loaded."""
+	addr = []
+	nxad = 1
+	while nxad:
+		if nxad == 1:
+			out.write("print linker_files.tqh_first[0]\n")
+		else:
+			out.write("print *(struct linker_file *)%d\n" % nxad)
+		out.flush()
+		l = searchfor(inp, printre)[0]
+		l, fn = searchfor(inp, filenamere, 1, l)
+		if not fn.group('fn'):
+			sys.stderr.write("got error: %s\n" % fn.group('error'))
+			nxad = 0
+		else:
+			l, ad = searchfor(inp, addressre, 1, l)
+			l, nx = searchfor(inp, nextre, 1, l)
+			addr.append((fn.group('fn'), long(ad.group('ad'), 16)))
+			nxad = long(nx.group('ad'), 16)
+
+	return addr
+
+#Get the addresses
+addr = get_addresses(gdb[0], gdb[1])
+
+#Pass through the resulting addresses, skipping the kernel.
+for i in addr[1:]:
+	for j in kld_debug_paths:
+		#Try .debug first.
+		p = popen2.popen4('find %s -type f -name "%s.debug"' % (j, i[0]))[0].read().strip()
+		if p:
+			break
+		#Try just .ko if .debug wasn't found.
+		p = popen2.popen4('find %s -type f -name "%s"' % (j, i[0]))[0].read().strip()
+		if p:
+			break
+
+	if not p:
+		#Tell our user that we couldn't find it.
+		a = i[1]
+		sys.stderr.write("Can't find module: %s (addr: %d + header)\n" % (i[0], a))
+		print '#add-symbol-file <file>', a, '#add header'
+		continue
+
+	#j = popen2.popen4('objdump --section-headers /boot/kernel/%s | grep "\.text"' % i[0])[0].read().strip().split()
+	#Output the necessary information
+	j = popen2.popen4('objdump --section-headers "%s" | grep "\.text"' % p)[0].read().strip().split()
+	try:
+		a = int(j[5], 16)
+		print 'add-symbol-file', p, i[1] + a
+	except IndexError:
+		sys.stderr.write('Bad file: %s, address: %d\n' % (i[0], i[1]))