js/src/devtools/rootAnalysis/explain.py@129ffea94266
js/src/devtools/rootAnalysis/explain.py
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rwxr-xr-x
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
1 #!/usr/bin/python
3 import re
4 import argparse
6 parser = argparse.ArgumentParser(description='Process some integers.')
7 parser.add_argument('rootingHazards', nargs='?', default='rootingHazards.txt')
8 parser.add_argument('gcFunctions', nargs='?', default='gcFunctions.txt')
9 parser.add_argument('hazards', nargs='?', default='hazards.txt')
10 parser.add_argument('extra', nargs='?', default='unnecessary.txt')
11 parser.add_argument('refs', nargs='?', default='refs.txt')
12 args = parser.parse_args()
14 num_hazards = 0
15 num_refs = 0
16 try:
17 with open(args.rootingHazards) as rootingHazards, \
18 open(args.hazards, 'w') as hazards, \
19 open(args.extra, 'w') as extra, \
20 open(args.refs, 'w') as refs:
21 current_gcFunction = None
23 # Map from a GC function name to the list of hazards resulting from
24 # that GC function
25 hazardousGCFunctions = {}
27 # List of tuples (gcFunction, index of hazard) used to maintain the
28 # ordering of the hazards
29 hazardOrder = []
31 for line in rootingHazards:
32 m = re.match(r'^Time: (.*)', line)
33 mm = re.match(r'^Run on:', line)
34 if m or mm:
35 print >>hazards, line
36 print >>extra, line
37 print >>refs, line
38 continue
40 m = re.match(r'^Function.*has unnecessary root', line)
41 if m:
42 print >>extra, line
43 continue
45 m = re.match(r'^Function.*takes unsafe address of unrooted', line)
46 if m:
47 num_refs += 1
48 print >>refs, line
49 continue
51 m = re.match(r"^Function.*has unrooted.*of type.*live across GC call ('?)(.*?)('?) at \S+:\d+$", line)
52 if m:
53 # Function names are surrounded by single quotes. Field calls
54 # are unquoted.
55 current_gcFunction = m.group(2)
56 hazardousGCFunctions.setdefault(current_gcFunction, []).append(line)
57 hazardOrder.append((current_gcFunction, len(hazardousGCFunctions[current_gcFunction]) - 1))
58 num_hazards += 1
59 continue
61 if current_gcFunction:
62 if not line.strip():
63 # Blank line => end of this hazard
64 current_gcFunction = None
65 else:
66 hazardousGCFunctions[current_gcFunction][-1] += line
68 with open(args.gcFunctions) as gcFunctions:
69 gcExplanations = {} # gcFunction => stack showing why it can GC
71 current_func = None
72 explanation = None
73 for line in gcFunctions:
74 m = re.match(r'^GC Function: (.*)', line)
75 if m:
76 if current_func:
77 gcExplanations[current_func] = explanation
78 current_func = None
79 if m.group(1) in hazardousGCFunctions:
80 current_func = m.group(1)
81 explanation = line
82 elif current_func:
83 explanation += line
84 if current_func:
85 gcExplanations[current_func] = explanation
87 for gcFunction, index in hazardOrder:
88 gcHazards = hazardousGCFunctions[gcFunction]
89 if gcFunction in gcExplanations:
90 print >>hazards, (gcHazards[index] + gcExplanations[gcFunction])
91 else:
92 print >>hazards, gcHazards[index]
94 except IOError as e:
95 print 'Failed: %s' % str(e)
97 print("Wrote %s" % args.hazards)
98 print("Wrote %s" % args.extra)
99 print("Wrote %s" % args.refs)
100 print("Found %d hazards and %d unsafe references" % (num_hazards, num_refs))
