1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
#!/usr/bin/env python
#===- lib/asan/scripts/asan_symbolize.py -----------------------------------===#
#
# The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
#===------------------------------------------------------------------------===#
import glob
import os
import re
import sys
import string
import subprocess
pipes = {}
next_inline_frameno = 0
def patch_address(frameno, addr_s):
''' Subtracts 1 or 2 from the top frame's address.
Top frame is normally the return address from asan_report*
call, which is not expected to return at all. Because of that, this
address often belongs to the next source code line, or even to a different
function. '''
if frameno == '0':
addr = int(addr_s, 16)
if os.uname()[4].startswith('arm'):
# Cancel the Thumb bit
addr = addr & (~1)
addr -= 1
return hex(addr)
return addr_s
def postprocess_file_name(file_name, paths_to_cut):
for path_to_cut in paths_to_cut:
file_name = re.sub(".*" + path_to_cut, "", file_name)
file_name = re.sub(".*asan_[a-z_]*.(cc|h):[0-9]*", "[asan_rtl]", file_name)
file_name = re.sub(".*crtstuff.c:0", "???:0", file_name)
return file_name
# TODO(glider): need some refactoring here
def symbolize_addr2line(line, binary_prefix, paths_to_cut):
global next_inline_frameno
# Strip the log prefix ("I/asanwrapper( 1196): ").
line = re.sub(r'^.*?: ', '', line)
#0 0x7f6e35cf2e45 (/blah/foo.so+0x11fe45)
match = re.match(r'^(\s*#)([0-9]+) *(0x[0-9a-f]+) *\((.*)\+(0x[0-9a-f]+)\)', line, re.UNICODE)
if match:
frameno = match.group(2)
binary = match.group(4)
addr = match.group(5)
addr = patch_address(frameno, addr)
if binary.startswith('/'):
binary = binary[1:]
binary = os.path.join(binary_prefix, binary)
if not os.path.exists(binary):
print line.rstrip().encode('utf-8')
return
addr = hex(int(addr, 16))
if not pipes.has_key(binary):
pipes[binary] = subprocess.Popen(["addr2line", "-i", "-f", "-e", binary],
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
p = pipes[binary]
frames = []
try:
print >>p.stdin, addr
# This will trigger a "??" response from addr2line so we know when to stop
print >>p.stdin
while True:
function_name = p.stdout.readline().rstrip()
file_name = p.stdout.readline().rstrip()
if function_name in ['??', '']:
break
file_name = postprocess_file_name(file_name, paths_to_cut)
frames.append((function_name, file_name))
except:
pass
if not frames:
frames.append(('', ''))
# Consume another pair of "??" lines
try:
p.stdout.readline()
p.stdout.readline()
except:
pass
for frame in frames:
inline_frameno = next_inline_frameno
next_inline_frameno += 1
print "%s%d" % (match.group(1).encode('utf-8'), inline_frameno), \
match.group(3).encode('utf-8'), "in", frame[0], frame[1]
else:
print line.rstrip().encode('utf-8')
binary_prefix = os.path.join(os.environ['ANDROID_PRODUCT_OUT'], 'symbols')
paths_to_cut = [os.getcwd() + '/', os.environ['ANDROID_BUILD_TOP'] + '/'] + sys.argv[1:]
for line in sys.stdin:
line = line.decode('utf-8', 'replace')
symbolize_addr2line(line, binary_prefix, paths_to_cut)
|
