summaryrefslogtreecommitdiffstats
path: root/tools/adbs
blob: b571d488035be0d4d76599d1b710bb96de0d54da (plain)
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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
#!/usr/bin/env python

# Copyright (C) 2009 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the 'License');
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an 'AS IS' BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import re
import string
import sys

###############################################################################
# match "#00  pc 0003f52e  /system/lib/libdvm.so" for example
###############################################################################
trace_line = re.compile("(.*)(\#[0-9]+)  (..) ([0-9a-f]{8})  ([^\r\n \t]*)")

# returns a list containing the function name and the file/lineno
def CallAddr2Line(lib, addr):
  global symbols_dir
  global addr2line_cmd
  global cppfilt_cmd

  if lib != "":
    cmd = addr2line_cmd + \
        " -f -e " + symbols_dir + lib + " 0x" + addr
    stream = os.popen(cmd)
    lines = stream.readlines()
    list = map(string.strip, lines)
  else:
    list = []
  if list != []:
    # Name like "move_forward_type<JavaVMOption>" causes troubles
    mangled_name = re.sub('<', '\<', list[0]);
    mangled_name = re.sub('>', '\>', mangled_name);
    cmd = cppfilt_cmd + " " + mangled_name
    stream = os.popen(cmd)
    list[0] = stream.readline()
    stream.close()
    list = map(string.strip, list)
  else:
    list = [ "(unknown)", "(unknown)" ]
  return list


###############################################################################
# similar to CallAddr2Line, but using objdump to find out the name of the
# containing function of the specified address
###############################################################################
def CallObjdump(lib, addr):
  global objdump_cmd
  global symbols_dir

  unknown = "(unknown)"
  uname = os.uname()[0]
  if uname == "Darwin":
    proc = os.uname()[-1]
    if proc == "i386":
      uname = "darwin-x86"
    else:
      uname = "darwin-ppc"
  elif uname == "Linux":
    uname = "linux-x86"
  if lib != "":
    next_addr = string.atoi(addr, 16) + 1
    cmd = objdump_cmd \
        + " -C -d --start-address=0x" + addr + " --stop-address=" \
        + str(next_addr) \
        + " " + symbols_dir + lib
    stream = os.popen(cmd)
    lines = stream.readlines()
    map(string.strip, lines)
    stream.close()
  else:
    return unknown

  # output looks like
  #
  # file format elf32-littlearm
  #
  # Disassembly of section .text:
  #
  # 0000833c <func+0x4>:
  #        833c:       701a            strb    r2, [r3, #0]
  #
  # we want to extract the "func" part
  num_lines = len(lines)
  if num_lines < 2:
    return unknown
  func_name = lines[num_lines-2]
  func_regexp = re.compile("(^.*\<)(.*)(\+.*\>:$)")
  components = func_regexp.match(func_name)
  if components is None:
    return unknown
  return components.group(2)

###############################################################################
# determine the symbols directory in the local build
###############################################################################
def FindSymbolsDir():
  global symbols_dir

  try:
    path = os.environ['ANDROID_PRODUCT_OUT'] + "/symbols"
  except:
    cmd = "CALLED_FROM_SETUP=true BUILD_SYSTEM=build/core " \
      + "SRC_TARGET_DIR=build/target make -f build/core/config.mk " \
      + "dumpvar-abs-TARGET_OUT_UNSTRIPPED"
    stream = os.popen(cmd)
    str = stream.read()
    stream.close()
    path = str.strip()

  if (not os.path.exists(path)):
    print path + " not found!"
    sys.exit(1)

  symbols_dir = path

###############################################################################
# determine the path of binutils
###############################################################################
def SetupToolsPath():
  global addr2line_cmd
  global objdump_cmd
  global cppfilt_cmd
  global symbols_dir

  uname = os.uname()[0]
  if uname == "Darwin":
    proc = os.uname()[-1]
    if proc == "i386":
      uname = "darwin-x86"
    else:
      uname = "darwin-ppc"
  elif uname == "Linux":
    uname = "linux-x86"
  prefix = "./prebuilt/" + uname + "/toolchain/arm-linux-androideabi-4.4.x/bin/"
  addr2line_cmd = prefix + "arm-linux-androideabi-addr2line"

  if (not os.path.exists(addr2line_cmd)):
    try:
      prefix = os.environ['ANDROID_BUILD_TOP'] + "/prebuilt/" + uname + \
               "/toolchain/arm-linux-androideabi-4.4.x/bin/"
    except:
      prefix = "";

    addr2line_cmd = prefix + "arm-linux-androideabi-addr2line"
    if (not os.path.exists(addr2line_cmd)):
      print addr2line_cmd + " not found!"
      sys.exit(1)

  objdump_cmd = prefix + "arm-linux-androideabi-objdump"
  cppfilt_cmd = prefix + "arm-linux-androideabi-c++filt"

###############################################################################
# look up the function and file/line number for a raw stack trace line
# groups[0]: log tag
# groups[1]: stack level
# groups[2]: "pc"
# groups[3]: code address
# groups[4]: library name
###############################################################################
def SymbolTranslation(groups):
  lib_name = groups[4]
  code_addr = groups[3]
  caller = CallObjdump(lib_name, code_addr)
  func_line_pair = CallAddr2Line(lib_name, code_addr)

  # If a callee is inlined to the caller, objdump will see the caller's
  # address but addr2line will report the callee's address. So the printed
  # format is desgined to be "caller<-callee  file:line"
  if (func_line_pair[0] != caller):
    print groups[0] + groups[1] + " " + caller + "<-" + \
          '  '.join(func_line_pair[:]) + " "
  else:
    print groups[0] + groups[1] + " " + '  '.join(func_line_pair[:]) + " "

###############################################################################

if __name__ == '__main__':
  # pass the options to adb
  adb_cmd  = "adb " + ' '.join(sys.argv[1:])

  # setup addr2line_cmd and objdump_cmd
  SetupToolsPath()

  # setup the symbols directory
  FindSymbolsDir()

  # invoke the adb command and filter its output
  stream = os.popen(adb_cmd)
  while (True):
    line = stream.readline()

    # EOF reached
    if (line == ''):
      break

    # remove the trailing \n
    line = line.strip()

    # see if this is a stack trace line
    match = trace_line.match(line)
    if (match):
      groups = match.groups()
      # translate raw address into symbols
      SymbolTranslation(groups)
    else:
      print line
      sys.stdout.flush()

  # adb itself aborts
  stream.close()