mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 08:19:28 +00:00
![Andrew Morton](/assets/img/avatar_default.png)
Don't assume that this file has execute permissions. For example, patch(1) loses that information. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# Usage: unwcheck.py FILE
|
|
#
|
|
# This script checks the unwind info of each function in file FILE
|
|
# and verifies that the sum of the region-lengths matches the total
|
|
# length of the function.
|
|
#
|
|
# Based on a shell/awk script originally written by Harish Patil,
|
|
# which was converted to Perl by Matthew Chapman, which was converted
|
|
# to Python by David Mosberger.
|
|
#
|
|
import os
|
|
import re
|
|
import sys
|
|
|
|
if len(sys.argv) != 2:
|
|
print "Usage: %s FILE" % sys.argv[0]
|
|
sys.exit(2)
|
|
|
|
readelf = os.getenv("READELF", "readelf")
|
|
|
|
start_pattern = re.compile("<([^>]*)>: \[0x([0-9a-f]+)-0x([0-9a-f]+)\]")
|
|
rlen_pattern = re.compile(".*rlen=([0-9]+)")
|
|
|
|
def check_func (func, slots, rlen_sum):
|
|
if slots != rlen_sum:
|
|
global num_errors
|
|
num_errors += 1
|
|
if not func: func = "[%#x-%#x]" % (start, end)
|
|
print "ERROR: %s: %lu slots, total region length = %lu" % (func, slots, rlen_sum)
|
|
return
|
|
|
|
num_funcs = 0
|
|
num_errors = 0
|
|
func = False
|
|
slots = 0
|
|
rlen_sum = 0
|
|
for line in os.popen("%s -u %s" % (readelf, sys.argv[1])):
|
|
m = start_pattern.match(line)
|
|
if m:
|
|
check_func(func, slots, rlen_sum)
|
|
|
|
func = m.group(1)
|
|
start = long(m.group(2), 16)
|
|
end = long(m.group(3), 16)
|
|
slots = 3 * (end - start) / 16
|
|
rlen_sum = 0L
|
|
num_funcs += 1
|
|
else:
|
|
m = rlen_pattern.match(line)
|
|
if m:
|
|
rlen_sum += long(m.group(1))
|
|
check_func(func, slots, rlen_sum)
|
|
|
|
if num_errors == 0:
|
|
print "No errors detected in %u functions." % num_funcs
|
|
else:
|
|
if num_errors > 1:
|
|
err="errors"
|
|
else:
|
|
err="error"
|
|
print "%u %s detected in %u functions." % (num_errors, err, num_funcs)
|
|
sys.exit(1)
|