stack: Adjust Pre-M Android incorrect debuggerd addresses.

third_party/android_platform/development/scripts/stack

 #!/usr/bin/env python
 #
 # Copyright (C) 2013 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.
 
 """stack symbolizes native crash dumps."""
 
 import getopt
 import glob
 import logging
 import os
 import sys
 
 import stack_core
+import stack_libs
 import subprocess
 import symbol
 import sys
 
 DEFAULT_SYMROOT='/tmp/symbols'
+DEFAULT_APK_DIR='chrome_apk'
+# From: https://source.android.com/source/build-numbers.html
+_ANDROID_M_MAJOR_VERSION=6
 
 def PrintUsage():
   """Print usage and exit with error."""
   # pylint: disable-msg=C6310
   print
   print "  usage: " + sys.argv[0] + " [options] [FILE]"
   print
   print "  --symbols-dir=path"
   print "       the path to a symbols dir, such as =/tmp/out/target/product/dream/symbols"
   print
   print "  --chrome-symbols-dir=path"
   print "       the path to a Chrome symbols dir (can be absolute or relative"
   print "       to src), such as =out/Debug/lib"
   print "       If not specified, will look for the newest lib in out/Debug or"
   print "       out/Release"
   print
+  print "  --packed-relocation-adjustments"
+  print "  --no-packed-relocation-adjustments"
+  print "       turn packed relocation adjustment on and off (default is off)"
+  print "       If running on pre-M Android and the stack trace appears to"
+  print "       make no sense, try turning this feature on."
+  print
+  print "  --chrome-apk-dir=path"
+  print "       the path to the APK staging dir (can be absolute or relative"
+  print "       to src), such as =out/Debug/chrome_apk"
+  print "       If not specified, uses =|chrome-symbols-dir|/../chrome_apk"
+  print "       Parses libraries here to find data for adjusting debuggerd"
+  print "       tombstones where relocations are packed."
+  print "       Enable/disable with --[no-]packed-relocation-adjustments."
+  print
   print "  --symbols-zip=path"
   print "       the path to a symbols zip file, such as =dream-symbols-12345.zip"
   print
   print "  --more-info"
   print "  --less-info"
   print "       Change the level of detail in the output."
   print "       --more-info is slower and more verbose, but more functions will"
   print "       be fully qualified with namespace/classname and have full"
   print "       argument information. Also, the 'stack data' section will be"
   print "       printed."
@@ skipping 51 matching lines @@
   else:
     # This is a zip of Chrome symbols, so symbol.CHROME_SYMBOLS_DIR needs to be
     # updated to point here.
     symbol.CHROME_SYMBOLS_DIR = symdir
     return (symdir, symdir)
 
 
 def main(argv):
   try:
     options, arguments = getopt.getopt(argv, "",
-                                       ["more-info",
+                                       ["packed-relocation-adjustments",
+                                        "no-packed-relocation-adjustments",
+                                        "more-info",
                                         "less-info",
                                         "chrome-symbols-dir=",
+                                        "chrome-apk-dir=",
                                         "symbols-dir=",
                                         "symbols-zip=",
                                         "arch=",
                                         "verbose",
                                         "help"])
   except getopt.GetoptError, unused_error:
     PrintUsage()
 
   zip_arg = None
   more_info = False
+  chrome_apk_symbols_dir = symbol.CHROME_SYMBOLS_DIR
+  chrome_apk_dir_suffix = ''
+  packed_relocation_adjustments = "unknown"
   for option, value in options:
     if option == "--help":
       PrintUsage()
     elif option == "--symbols-dir":
       symbol.SYMBOLS_DIR = os.path.expanduser(value)
     elif option == "--symbols-zip":
       zip_arg = os.path.expanduser(value)
     elif option == "--arch":
       symbol.ARCH = value
     elif option == "--chrome-symbols-dir":
       symbol.CHROME_SYMBOLS_DIR = os.path.join(symbol.CHROME_SYMBOLS_DIR, value)
+    elif option == "--chrome-apk-dir":
+      chrome_apk_dir_suffix = os.path.join(chrome_apk_dir_suffix, value)
+    elif option == "--packed-relocation-adjustments":
+      packed_relocation_adjustments = True
+    elif option == "--no-packed-relocation-adjustments":
+      packed_relocation_adjustments = False
     elif option == "--more-info":
       more_info = True
     elif option == "--less-info":
       more_info = False
     elif option == "--verbose":
       logging.basicConfig(level=logging.DEBUG)
 
+  if chrome_apk_dir_suffix:
+    chrome_apk_dir = os.path.join(chrome_apk_symbols_dir,
+                                  chrome_apk_dir_suffix)
+  else:
+    chrome_apk_dir = os.path.join(symbol.CHROME_SYMBOLS_DIR,
+                                  '..', DEFAULT_APK_DIR)
+
   if len(arguments) > 1:
     PrintUsage()
 
   if not arguments or arguments[0] == "-":
     print "Reading native crash info from stdin"
     f = sys.stdin
   else:
-    print "Searching for native crashes in %s" % arguments[0]
+    print "Searching for native crashes in: " + os.path.realpath(arguments[0])

[Andrew Hayden (chromium.org), 2015/10/29 07:44:35]

Nit only: Just out of curiosity, why convert this from "%s" to ":" ?

[simonb (inactive), 2015/10/29 11:47:12]

Matches the way the other trace-like messages are formatted in this module.

     f = open(arguments[0], "r")
 
   lines = f.readlines()
   f.close()
 
   rootdir = None
   if zip_arg:
     rootdir, symbol.SYMBOLS_DIR = UnzipSymbols(zip_arg)
 
-  print "Reading Android symbols from", symbol.SYMBOLS_DIR
-  print "Reading Chrome symbols from", symbol.CHROME_SYMBOLS_DIR
-  stack_core.ConvertTrace(lines, more_info)
+  if packed_relocation_adjustments == "unknown":
+    version = stack_libs.GetTargetAndroidVersionNumber(lines)
+    if version == None:
+      print ("Unknown Android release, "
+             + "consider --[no-]packed-relocation-adjustments options")
+      packed_relocation_adjustments = False
+    elif version >= _ANDROID_M_MAJOR_VERSION:
+      packed_relocation_adjustments = False
+    else:
+      packed_relocation_adjustments = True
+      print ("Pre-M Android release detected, "
+             + "added --packed-relocation-adjustments option")
+
+  if packed_relocation_adjustments:
+    print ("Reading Chrome APK library data from: "
+           + os.path.normpath(chrome_apk_dir))
+    load_vaddrs = stack_libs.GetLoadVaddrs(chrome_apk_dir)
+  else:
+    load_vaddrs = {}
+
+  print ("Reading Android symbols from: "
+         + os.path.normpath(symbol.SYMBOLS_DIR))
+  print ("Reading Chrome symbols from: "
+         + os.path.normpath(symbol.CHROME_SYMBOLS_DIR))
+  stack_core.ConvertTrace(lines, load_vaddrs, more_info)
 
   if rootdir:
     # be a good citizen and clean up...os.rmdir and os.removedirs() don't work
     cmd = "rm -rf \"%s\"" % rootdir
     print "\ncleaning up (%s)" % cmd
     os.system(cmd)
 
 if __name__ == "__main__":
   sys.exit(main(sys.argv[1:]))
 
 # vi: ts=2 sw=2