Commit Graph

79 Commits

Author SHA1 Message Date
Jonas Devlieghere a5c3f10b75 [lldb] Update shebang in heap.py and crashlog.py 2021-07-02 15:33:57 -07:00
Jonas Devlieghere 91d3f73937 [lldb] Update register state parsing for JSON crashlogs
- The register encoding state in the JSON crashlog format changes.
   Update the parser accordingly.
 - Print the register state when printing the symbolicated thread.
2021-04-22 16:40:59 -07:00
Jonas Devlieghere a62cbd9a02 [lldb] Include thread name in crashlog.py output
Update the JSON parser to include the thread name in the Thread object.

rdar://76677320
2021-04-22 11:38:53 -07:00
Jonas Devlieghere 2cbd3b04fe [lldb] Support "absolute memory address" images in crashlog.py
The binary image list contains the following entry when a frame is not
found in any know binary image:

  {
    "size" : 0,
    "source" : "A",
    "base" : 0,
    "uuid" : "00000000-0000-0000-0000-000000000000"
  }

Note that this object is missing the name and path keys. This patch
makes the JSON parser resilient against their absence.
2021-04-19 10:27:11 -07:00
Jonas Devlieghere 8639e2aaaf [lldb] Raise a CrashLogParseException when failing to parse JSON crashlog
Throw an exception with an actually helpful message when we fail to
parse a JSON crashlog.
2021-04-15 15:28:23 -07:00
Jonas Devlieghere cc52ea3001 [lldb] Update crashlog script for JSON changes
Update the crashlog script for changes to the JSON schema.

rdar://75122914

Differential revision: https://reviews.llvm.org/D98219
2021-03-09 10:44:34 -08:00
Jonas Devlieghere c7cbf32f57 [crashlog] Implement parser for JSON encoded crashlogs
Add a parser for JSON crashlogs. The CrashLogParser now defers to either
the JSONCrashLogParser or the TextCrashLogParser. It first tries to
interpret the input as JSON, and if that fails falling back to the
textual parser.

Differential revision: https://reviews.llvm.org/D91130
2020-11-16 13:50:37 -08:00
Jonas Devlieghere c29c24be63 [crashlog] Pass the debugger around instead of relying on lldb.debugger
The lldb.debugger et al convenience variables are only available from
the interactive script interpreter. In all other scenarios, they are
None (since fc1fd6bf9f) before that they
were default initialized.

The crashlog script was hacking around that by setting the lldb.debugger
to a newly created debugger instance when running outside of the script
interpreter, which works fine until lldb creates a script interpreter
instance under the hood and clears the variables. This was resulting in
an AttributeError when invoking the script directly (from outside of
lldb):

  AttributeError: 'NoneType' object has no attribute 'GetSourceManager'

This patch fixes that by passing around the debugger instance.

rdar://64775776

Differential revision: https://reviews.llvm.org/D90706
2020-11-04 12:51:26 -08:00
Jonas Devlieghere f0fd4349a7 [crashlog] Print the actual exception in the CommandReturnObject
Before:

  error: python exception <class 'AttributeError'>

After:

  error: python exception: 'DarwinImage' object has no attribute 'debugger'
2020-11-03 11:51:40 -08:00
Jonas Devlieghere 16dd69347d [crashlog] Modularize parser
Instead of parsing the crashlog in one big loop, use methods that
correspond to the different parsing modes.

Differential revision: https://reviews.llvm.org/D90665
2020-11-03 10:21:21 -08:00
Jonas Devlieghere 4b84682044 [crashlog] Move crash log parsing into its own class
Move crash log parsing out of the CrashLog class and into its own class
and add more tests.

Differential revision: https://reviews.llvm.org/D90664
2020-11-03 09:04:35 -08:00
Jonas Devlieghere 66009a19e5 [crashlog] Remove commented out code (NFC)
Remove commented out code and print statements.
2020-11-02 19:46:53 -08:00
Jonas Devlieghere 6c9f3fe908 [crashlog] Turn crash log parsing modes into a Python 'enum' (NFC)
Python doesn't support enums before PEP 435, but using a class with
constants is how it's commonly emulated. It can be converted into a real
Enum (in Python 3.4 and later) by extending the Enum class:

  class CrashLogParseMode(Enum):
      NORMAL = 0
      THREAD = 1
      IMAGES = 2
      THREGS = 3
      SYSTEM = 4
      INSTRS = 5
2020-11-02 19:42:34 -08:00
Jonas Devlieghere fb6d1c020c [crashlog] Fix and simplify the way we import lldb
Don't try to guess the location of LLDB.framework but use xcrun to ask
the command line driver for the location of the lldb module.
2020-11-02 18:59:48 -08:00
Jonas Devlieghere 5b17b6d924 [lldb] Ignore binary data in crashlog
Skip the instruction stream section in the crashlog section.

Differential revision: https://reviews.llvm.org/D90414
2020-10-30 09:17:45 -07:00
serge-sans-paille 515bc8c155 Harmonize Python shebang
Differential Revision: https://reviews.llvm.org/D83857
2020-07-16 21:53:45 +02:00
Jim Ingham 723a1caa37 Fix the crashlog.py script's use of the load_address property.
This property is explicitly for use only in the interactive editor,
and NOT in commands.  It's use worked until we got more careful about
not leaving lldb.target lying around in the script interpreter.

I also added a quick sniff test for the save_crashlog command.

<rdar://problem/60350620>
Differential Revision: https://reviews.llvm.org/D80680
2020-05-28 09:55:40 -07:00
Adrian Prantl ff9d732887 crashlog.py: Improve regular expressions
This is yet another change to the regular expressions in crashlog.py
that fix a few edge cases, and attempt to improve the readability
quite a bit in the process. My last change to support spaces in
filenames introduced a bug that caused the version/archspec field to
be parsed as part of the image name.

For example, in "0x1111111 - 0x22222 +MyApp Pro arm64 <01234>", the
name of the image was recognized as "MyApp Pro arm64" instead of
"MyApp Pro" with a "version" of arm64.

The bugfix makes the space following an optional field mandatory
*inside* the optional group.

rdar://problem/56883435

Differential Revision: https://reviews.llvm.org/D69871
2019-11-07 10:52:06 -08:00
Davide Italiano 68946d10ad [crashlog] Fix a mismatch between bytes and strings.
The functions in read_plist() want bytes as input, not
strings.

<rdar://problem/52600712>

llvm-svn: 365416
2019-07-09 01:05:12 +00:00
Adrian Prantl 573ffd88a0 Python 3: decode string as utf-8 to avoid type mismatch.
rdar://problem/51464644

Differential Revision: https://reviews.llvm.org/D63311

llvm-svn: 363413
2019-06-14 15:39:14 +00:00
Adrian Prantl 38be2c65b6 Make crashlog.py less noisy
For end-users there is no point in printing dSYM load errors for
system frameworks, since they will all fail and there's nothing they
can do about it. This patch hides them by default and shows them when
--verbose is present.

Differential Revision: https://reviews.llvm.org/D63310

llvm-svn: 363412
2019-06-14 15:39:11 +00:00
Stefan Granitz 61a7ab7fdb [lldb] Ignore null frames in lldb.macosx crashlog
llvm-svn: 363172
2019-06-12 14:46:37 +00:00
Davide Italiano 192dd7df2f [crashlog] Add a missing call to decode.
<rdar://problem/51139357>

llvm-svn: 362044
2019-05-30 00:35:43 +00:00
Davide Italiano 8803124d23 [crashlog] Use loads() instead of readPlistFromString() for python 3.
<rdar://problem/50903413>

llvm-svn: 361087
2019-05-18 01:57:12 +00:00
Davide Italiano 085626a873 [crashlog] Strip trailing `\n` from check_output return.
Generally having spurious `\n` doesn't matter, but here the
returning string is a command which is executed, so  we want
to strip it. Pointed out by Jason.

llvm-svn: 358717
2019-04-18 21:32:36 +00:00
Davide Italiano e3b5eba1ba [crashlog] Use the right path for dsymforUUID and remove an unnecessary import.
<rdar://problem/49925960>

llvm-svn: 358615
2019-04-17 21:51:55 +00:00
Serge Guelton 3577da7667 Portable exception value access across Python 2 / Python 3
Differential Revision: https://reviews.llvm.org/D59583

llvm-svn: 356670
2019-03-21 14:39:55 +00:00
Adrian Prantl f4d2fa3fa0 crashlog.py: Catch exception from subprocess.
llvm-svn: 355572
2019-03-07 00:41:51 +00:00
Davide Italiano 9a8e777f8c [Python] Unbreak the recently modified tests for python 2.
llvm-svn: 355566
2019-03-06 23:50:36 +00:00
Davide Italiano a658ab9f55 [testsuite] Port crashlog to python 3, second attempt.
llvm-svn: 355562
2019-03-06 22:54:11 +00:00
Davide Italiano 814ad73452 Revert "[testsuite] Port crashlog and dependencies to Python 3."
This revert the commit because it broke the bots. I need to find
a way that works with both versions.

llvm-svn: 355364
2019-03-05 01:34:47 +00:00
Davide Italiano fc188448fa [testsuite] Port crashlog and dependencies to Python 3.
Fixes three tests in the testsuite.

llvm-svn: 355359
2019-03-05 00:53:38 +00:00
Shafik Yaghmour d03bf06883 Fix use of non-existing variable in crashlog.py
Summary:
The method find_matching_slice(self) uses uuid_str on one of the paths but the variable does not exist and so this results in a NameError exception if we take that path.

Differential Revision: https://reviews.llvm.org/D57467

llvm-svn: 352772
2019-01-31 17:33:17 +00:00
Adrian Prantl f700c8b253 Make crashlog.py work or binaries with spaces in their names
This is a little dangerous since the crashlog files aren't 100%
unambiguous, but the risk is mitigated by using a non-greedy +?
pattern.

rdar://problem/38478511

Differential Revision: https://reviews.llvm.org/D55608

llvm-svn: 349367
2018-12-17 17:26:04 +00:00
Adrian Prantl fb5aa932b1 Make crashlog.py work when a .dSYM is present, but a binary is missing
Often users have a crash log an d a .dSYM bundle, but not the original
application binary. It turns out that for crash symbolication, we can
safely fall back to using the binary inside the .dSYM bundle.

Differential Revision: https://reviews.llvm.org/D55607

llvm-svn: 349366
2018-12-17 17:25:57 +00:00
Jim Ingham 8bebdff49e The save_crashlog command was still looking at lldb.target and
lldb.process.  That hasn't worked for a long time.  Convert it
to the form that takes an SBExecutionContext and use that instead.

llvm-svn: 315549
2017-10-12 02:21:41 +00:00
Jim Ingham 9f44d460d9 Print the error if dsymForUUID sometimes produces bad plists.
Not much we can do about it but at least we can print the bad
plist and the error.

llvm-svn: 298958
2017-03-28 23:25:34 +00:00
Greg Clayton e04e5b954a Improve crashlog.py so it can handle more iOS crashlog files.
<rdar://problem/29191857>

llvm-svn: 289006
2016-12-08 00:22:45 +00:00
Kate Stone b9c1b51e45 *** This commit represents a complete reformatting of the LLDB source code
*** to conform to clang-format’s LLVM style.  This kind of mass change has
*** two obvious implications:

Firstly, merging this particular commit into a downstream fork may be a huge
effort.  Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit.  The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):

    find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
    find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;

The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.

Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit.  There are alternatives available that will attempt
to look through this change and find the appropriate prior commit.  YMMV.

llvm-svn: 280751
2016-09-06 20:57:50 +00:00
Greg Clayton 6c42aa777e Fixed a few places that were building a regex from an identifier without escaping the identifier text.
<rdar://problem/26090553> 

llvm-svn: 272423
2016-06-10 20:09:33 +00:00
Jim Ingham c917a381f8 Remove a few uses of lldb.target, which is not valid
in a scripted command.

llvm-svn: 240451
2015-06-23 20:26:45 +00:00
Jason Molenda 7a5014b040 Add a call to SBDebugger:Destroy() at the end of the self-hosted
version of this script.  We picked up a bug at some point in March
where scripts that fail to call SBDebugger::Destroy() will crash
in the Debugger C++ dtor.  I want to track the change down which
introduced the change - but this script should be calling
SBDebugger::Destroy() in the first place, so do that.

llvm-svn: 233779
2015-04-01 02:09:04 +00:00
Greg Clayton 48d157dd41 symbolicate the application specific backtraces that are in MacOSX crash log files.
<rdar://problem/20039160> 

llvm-svn: 231415
2015-03-05 22:53:06 +00:00
Greg Clayton 86e70cb3ac Fixed an issue where if you called:
SBTarget::AddModule(const char *path,
                    const char *triple,
                    const char *uuid_cstr,
                    const char *symfile);
                    
If "symfile" was filled in, it would cause us to not correctly add the module. Same goes for:

SBTarget::AddModule(SBModuleSpec ...)

Where you filled in the symfile.

<rdar://problem/16529799>

llvm-svn: 205750
2014-04-07 23:50:17 +00:00
Greg Clayton a16cb16a58 <rdar://problem/13477795>
crashlog.py was always subtracting 1 to point to the previous instruction when symbolicating ARM backtraces. Many times the backtraces will include bit zero set to 1 to indicate thumb, so we need to make sure we mask the address and then backup one for non frame zero frames.

llvm-svn: 178812
2013-04-04 23:36:51 +00:00
Sean Callanan c51cd47549 Made crashlog.py handle cases where a parent
process's name contains spaces.  Thanks to
Justin Seyster for the patch.

<rdar://problem/13002540>

llvm-svn: 172294
2013-01-12 02:11:49 +00:00
Greg Clayton aa4d45314c Added auto LLDB import to the crashlog script.
llvm-svn: 164192
2012-09-19 01:59:34 +00:00
Jason Molenda d204afaee8 Make the tab character in the thread frame lines optional.
llvm-svn: 163037
2012-08-31 23:27:24 +00:00
Greg Clayton 1f7460716b <rdar://problem/11757916>
Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes:
- Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". 
- modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly
- Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was.
- modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile()

Cleaned up header includes a bit as well.

llvm-svn: 162860
2012-08-29 21:13:06 +00:00
Jason Molenda e5ad3859eb Instead of using re.split and requiring two spaces between the "regname: regvalue" pairs,
use re.findall and specify the regexp of regname: regvalue that we're interested in.
<rdar://problem/12188752> 

llvm-svn: 162806
2012-08-28 23:46:12 +00:00