Commit Graph

27 Commits

Author SHA1 Message Date
Tobias Bosch 53d6bfef32 [Dexter] Add --source-dir-root flag
Summary:
This allows to run dexter tests with separately compiled
binaries that are specified via --binary if the source file
location changed between compilation and dexter test run.

Reviewers: TWeaver, jmorse, probinson, #debug-info

Reviewed By: jmorse

Subscribers: #debug-info, cmtice, llvm-commits

Tags: #llvm, #debug-info

Differential Revision: https://reviews.llvm.org/D81319
2020-06-18 09:29:08 -07:00
Tom Weaver c6aa829644 [Dexter] Add DexLimitSteps command and ConditionalController
* Adds DexLimitSteps Command.
* Add ConditionalController, a new DebuggerController type.
* 5 regression tests
* documentation

* recommit, fixed accidental adding of unnecessary file

Reviewers: jmorse

Differential Revision: https://reviews.llvm.org/D79786
2020-06-05 12:53:56 +01:00
Tom Weaver 05eabb5204 Revert "[Dexter] Add DexLimitSteps command and ConditionalController"
This reverts commit 81e836a5a6.

Accidentally committed a diff file.
2020-06-03 12:28:26 +01:00
Tom Weaver 81e836a5a6 [Dexter] Add DexLimitSteps command and ConditionalController
* Adds DexLimitSteps Command.
  * Add ConditionalController, a new DebuggerController type.
  * 5 regression tests
  * documentation

  Reviewers: jmorse

  Differential Revision: https://reviews.llvm.org/D79786
2020-06-02 16:19:43 +01:00
Tom Weaver bf1cdc2c6c [Dexter] Add os.path.normcase(...) transform to test path early.
When passing a test path, if the path points directly at a file, then
  normcase would not be called on path.

  This would change the expected lower case drive path, on windows, to be
  uppercase. This patch simply calls normcase on the test path at the earliest
  point possible to avoid this issue.

  Reviewers: djtodoro, jmorse

  Differential Revision: https://reviews.llvm.org/D78633
2020-06-02 16:09:17 +01:00
Djordje Todorovic 871388e384 [dexter] Require python >= 3.6
The documentation says we need python >= 3.6. Running it with an older
version, we get verbose output from python interpreter.
This patch fixes that as:

  $ python2 dexter.py list-debuggers
  You need python 3.6 or later to run DExTer

Differential Revision: https://reviews.llvm.org/D78621
2020-04-23 11:46:10 +02:00
Tom Weaver b1097e29d3 [Dexter] Fix failing clang-opt-bisect sub tool test
Fixes a mismatch in expected arguments passed to run_debugger_subprocess

  Fix for:
    https://reviews.llvm.org/D76926
    rG9cf9710bb0d61cb5c27c6e780af6a182cb162bfb
2020-04-21 13:40:02 +01:00
Tom Weaver 9cf9710bb0 [Dexter][NFC] Add Debugger Controller To Dexter
Add DebuggerControllerBase and DefaultController to Dexter
  implements a new architecture that supports new and novel ways of running
  a debugger under dexter.
  Current implementation adds the original default behaviour via the new
  architecture via the DefaultController, this should have NFC.

Reviewers: Orlando

Differential Revision: https://reviews.llvm.org/D76926
2020-04-20 15:46:55 +01:00
Tom Weaver b6d2212f52 [Dexter] Add support for Windows to regression test suite.
This patch addresses the issue of the regression suite not running on windows
hardware. It changes the following things:

* add new dexter regression suite command to lit.cfg.py that makes use of the
  clang-cl_vs2015 and dbgend builder and debuggers.

* sprinkle the new regressionsuite command through the feature and tool tests
  that require them.

* mark certain problem tests on windows

* [revert fix] fixed darwin regression test failures by adding unsupported line
  for system-darwin to command tests.

There's a couple of tests that fail (or pass) in unexpected ways on Windows.

Problem tests are both the penalty and perfect expect_watch_type.cpp tests.
Type information reporting parity is not possible a this time in dexter due to
the nature of how different debuggers report type information back to their users.

reviewers: Orlando

Differential Revision: https://reviews.llvm.org/D76609
2020-03-31 10:18:12 +01:00
Davide Italiano 470e82cd06 Revert "[Dexter] Add support for Windows to regression test suite."
This reverts commit 89025da9f6 as
it breaks the lldb macOS bot.
2020-03-27 13:12:24 -07:00
Tom Weaver 89025da9f6 [Dexter] Add support for Windows to regression test suite.
This patch addresses the issue of the regression suite not running on windows hardware. It changes the following things:

add new dexter regression suite command to lit.cfg.py that makes use of the clang-cl_vs2015 and dbgend builder and debuggers.
sprinkle the new regression suite command through the feature and tool tests that require them.
mark certain problem tests on windows

There's a couple of tests that fail (or pass) in unexpected ways on Windows.

Problem tests are both the penalty and perfect expect_watch_type.cpp tests. Type information reporting parity is not possible a this time in dexter due to the nature of how different debuggers report type information back to their users.

reviewers: Orlando

Differential Revision: https://reviews.llvm.org/D76609
2020-03-27 18:15:17 +00:00
Tom Weaver 09f4bdc03f [DexTer] Add step.UNKNOWN check for NoneType line numbers.
Summary: It's possible for an instance of the visual studio debugger
to return a NoneType line number location when stepping during a
debugging session.

This patches teaches DexTer how to handle this particular case without
crashing out.

Reviewers: Orlando

Differential revision: https://reviews.llvm.org/D75992
2020-03-16 16:38:41 +00:00
Pierre-vh b4b9fa5e11 [debuginfo-tests][dexter] Add --builder gcc support for POSIX
Differential Revision: https://reviews.llvm.org/D75339
2020-03-03 16:42:24 +00:00
Pierre-vh 527bd24c3b [debuginfo-tests][dexter] Add a test tool --calculate-average option
Differential Revision: https://reviews.llvm.org/D75235
2020-02-28 10:00:37 +00:00
Jeremy Morse 0a3b083791 [debuginfo-tests] Warn, not error, if we can't delete working directory
On Windows, an error running the debugger typically leaves a process
hanging around in the working directory. When Dexter exits, it can't then
delete the working directory and produces an exception, masking the problem
in the debugger. (This can be worked around by specifying --save-temps).
Rather than hard-erroring, print a warning when we can't delete the working
directory instead.

It'd be much better to improve our error handling, and make the
WorkingDirectory class aware that something's wrong when it enters exit.
However, this is something that's going to mask genuine errors and make
everyones lives harder right now, so I think this non-ideal fix is
important to get in first.

Differential Revision: https://reviews.llvm.org/D74548
2020-02-25 13:15:07 +00:00
Jeremy Morse 5ee4a03bc9 [debuginfo-tests][Dexter] Fix some Windows-unfriendly Dexter behaviours
These are some minor things that I've run into on Windows, largely in
error handling paths:

 * Giving --lldb-executable on Windows triggers a "useless option" code
   path, which touches an attribute that only exists in the
   list_debuggers tool. Switch this to use hasattr, which will work in
   all subtools.
 * We were over-decoding some text reporting errors, but only in an
   exception path
 * The path to lldb on Windows needs to be quoted (even though dexter
   isn't making use of it).

Differential Revision: https://reviews.llvm.org/D74546
2020-02-13 14:24:33 +00:00
Jeremy Morse 26f6aa9e3b [debuginfo-tests] Fix Dexter process creation failure on Windows
When writing the Windows dbgeng driver for Dexter, I couldn't work out why it
would either launch a process and leave it free running, or if I started the
process suspended, never do anything with it. The result was a hack to create
and attach processes manually. This has been flaking out on Reids Windows
buildbot, and clearly wasn't a good solution.

Digging into this, it turns out that the "normal" cdb / windbg behaviour of
breaking whenever we attach to a process is not the default: it has to be
explicitly requested from the debug engine. This patch does so (by setting
DEBUG_ENGOPT_INITIAL_BREAK in the engine options), after which we can simply
call "CreateProcessAndAttach2" and everything automagically works.

No test for this behaviour: everything was just broken before.

Differential Revision: https://reviews.llvm.org/D74409
2020-02-13 12:46:32 +00:00
Reid Kleckner 63f49465c3 [dexter] Fix feature tests on Windows
First, add LLD as a dependency on Windows. The windows batch scripts
pass -fuse-ld=lld, so they need it.

Second, decode builder stdout/stderr even if the command fails.
Otherwise it gets printed as b'line 1\n\rline 2\n\r'.

Last, make the batch script one line less noisy. We might want to try to
do more here, though. It would be nice if we could get as close to
possible as lit, where you can literally copy & paste the failing
command to re-run it.

With the two changes above, now the feature tests that use clang++.bat
pass for me. The clang-cl_vs2015 ones still fail, and I'll fix them
separately.

Reviewers: jmorse

Differential Revision: https://reviews.llvm.org/D69725
2019-11-05 10:49:57 -08:00
Reid Kleckner 7035ea6e3e [dexter] Remove lit check for python 3
This is checking the version of Python used to run lit, which is not
necessarily the same as the version used to run the dexter tests.  If
the tests are run via the build/bin/llvm-lit[.py] helper script, then
that is likely to pick up whatever version of Python is on PATH.
Conventionally, this will find Python 2. CMake already checks that
Python 3 is in use and puts the path to it in the lit site config, so
this check is redundant, and Python 3 will ultimately be used to run
dexter.

Reviewers: jmorse

Differential Revision: https://reviews.llvm.org/D69724
2019-11-05 10:49:56 -08:00
Jeremy Morse be79db93fb [Dexter] Continue sprinking no-location fixes
Example failure:

http://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake/3255/testReport/junit/debuginfo-tests/dexter-tests/asan_c/

The tests themselves seem to be working, it's just unexplored paths within
dexter that are flaking out.
2019-11-01 13:57:52 +00:00
Jeremy Morse 6e217ba3ea [Dexter] Account for another no-lineno scenario
This is another part of Dexter that had never seen a missing source
location before, now newly turning up on Darwin.
2019-11-01 13:41:56 +00:00
Jeremy Morse e34179aad1 [Dexter] Cope better with empty source locations
When running a program, Dexter single steps if it's in one of the source
files under test, or free-runs if it isn't. Handle the circumstance where
the current source file simply isn't known.
2019-11-01 13:30:26 +00:00
Jeremy Morse 7f738c811a Fix a brain-fail with debuginfo-tests/dexter internal tests
I baked the "test" subcommand into the %dexter substituion, as that's
what all of the dexter tests use. However I forgot about the internal
tests for whether dexters features are working. Install a %dexter_base
command to allow those tests to call dexter.py directly, and un-xfail
the tests on darwin.

Update too the list of paths the unittests shouldn't try and cover, as it
tries to load dbgeng on unix machines. Ideally we wouldn't be using this
method of test discovery in the future.
2019-11-01 12:35:38 +00:00
Adrian Prantl 8e40620441 XFAIL dexter tests on Darwin.
These fail parsing command line arguments.
2019-10-31 11:22:19 -07:00
Jeremy Morse 984fad243d Reapply "Import Dexter to debuginfo-tests""
This reverts commit cb935f3456.

Discussion in D68708 advises that green dragon is being briskly
refurbished, and it's good to have this patch up testing it.
2019-10-31 16:51:53 +00:00
Jeremy Morse cb935f3456 Revert "Import Dexter to debuginfo-tests"
This reverts commit f78c236efd.

Green dragon breakage was observed; I'll take a look at why.
2019-10-31 16:22:10 +00:00
Jeremy Morse f78c236efd Import Dexter to debuginfo-tests
Dexter (Debug Experience Tester) is a test-driver for our debug info
integration tests, reading a set of debug experience expectations and
comparing them with the actual behaviour of a program under a debugger.
More about Dexter can be found in the RFC:

  http://lists.llvm.org/pipermail/llvm-dev/2019-October/135773.html

and the phab review in D68708. Not all the debuginfo tests have been
transformed into Dexter tests, and we look forwards to doing that
incrementally.

This commit mostly aims to flush out buildbots that are running
debuginfo-tests but don't have python 3 installed, possibly
green-dragon and some windows bots.
2019-10-31 13:49:47 +00:00