10 Commits

Author SHA1 Message Date
Jonas Devlieghere
b505ed9d31 [lldb] Remove support for replaying the test suite from a reproducer
This patch removes the infrastructure to replay the test suite from a
reproducer, as well as the modifications made to the individual tests.
2021-09-30 10:47:19 -07:00
Raphael Isemann
f88b502d9b [FileCollector] Fix that the file system case-sensitivity check was inverted
real_path returns an `std::error_code` which evaluates to `true` in case an
error happens and `false` if not. This code was checking the inverse, so
case-insensitive file systems ended up being detected as case sensitive.

Tested using an LLDB reproducer test as we anyway need a real file system and
also some matching logic to detect whether the respective file system is
case-sensitive (which the test is doing via some Python checks that we can't
really emulate with the usual FileCheck logic).

Fixes rdar://67003004

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D96795
2021-02-16 20:21:32 +01:00
Michał Górny
e1f613ce3c [lldb] [test] Reenable two passing tests on FreeBSD
[Reenable TestReproducerAttach and TestThreadSpecificBpPlusCondition
on FreeBSD -- both seem to pass correctly now.
2020-12-01 23:25:45 +01:00
Jonas Devlieghere
4aafc479f2 [lldb/Test] Always set the cleanupSubprocesses tear down hook
Always clean up subprocesses on tear down instead of relying on the
caller to do so. This is not only less error prone but also means the
tests can be more concise.

Differential revision: https://reviews.llvm.org/D83787
2020-07-14 14:05:56 -07:00
Jan Kratochvil
68a9356bde [lldb] [testsuite] TestReproducerAttach.py: Fix dependency on external symbol files
D55859 and D63339 prevented needless dependencies on system symbol
files. This testcase was checked-in afterwards and it brings back one
such unwanted dependency. Under some circumstances it may cause false
FAILs and/or excessive resource usage to run the testcase.

clang-format does not support .py so I have formatted it as I found most
compatible.

Also this is not a full testcase-style initialization, for example
--no-lldbinit ignores env("NO_LLDBINIT") setting which lldbtest.py does
implement:
  # If we spawn an lldb process for test (via pexpect), do not load the
  # init file unless told otherwise.
  if os.environ.get("NO_LLDBINIT") != "NO":
      self.lldbOption += " --no-lldbinit"

But this is what lldbpexpect.py does - it also ignores
env("NO_LLDBINIT"). Sure one could also fix lldbpexpect.py to unify the
initialization more with lldbtest.py but I find that outside of the
scope of this patch.

Differential Revision: https://reviews.llvm.org/D79649
2020-05-09 09:06:37 +02:00
Jonas Devlieghere
fc41013893 [lldb/Reproducers] Capture reproducers from the API test suite.
Make it possible to capture reproducers from the API test suite. Given
the symmetry between capture and replay, this patch also adds the
necessary code for replay. For now this is a NO-OP until the
corresponding reproducer instrumentation changes land.

For more info please refer to the RFC on lldb-dev:
http://lists.llvm.org/pipermail/lldb-dev/2020-April/016100.html

Differential revision: https://reviews.llvm.org/D77588
2020-04-14 09:24:23 -07:00
Jonas Devlieghere
88fbd8f9e7 [lldb/Reproducers] Decode run-length encoding in GDB replay server.
The GDB replay server sanity-checks that every packet it receives
matches what it expects from the serialized packet log. This mechanism
tripped for TestReproducerAttach.py on Linux, because one of the packets
(jModulesInfo) uses run-length encoding. The replay server was comparing
the expanded incoming packet with the unexpanded packet in the log. As a
result, it claimed to have received an unexpected packet, which caused
the test to fail.

This patch addresses that issue by expanding the run-length encoding
before comparing the packets.

Differential revision: https://reviews.llvm.org/D76163
2020-03-16 08:47:39 -07:00
Jonas Devlieghere
01387c44d0 [lldb/Test] Temporarily skip TestReproducerAttach on Linux
The test is failing with an unexpected packet during replay. Temporarily
disabling the test while I setup and environment to investigate.
2020-03-13 10:07:15 -07:00
Jonas Devlieghere
17bdb7a179 [lldb/Test] Convert stdout to str by calling decode('utf-8') on it.
Make sure both arguments to assertIn are of type str. This should fix
the following error:

TypeError: a bytes-like object is required, not 'str'.
2020-03-13 09:50:41 -07:00
Jonas Devlieghere
2451cbf07b [lldb/Reproducers] Intercept the FindProcesses API
This patch extends the reproducers to intercept calls to FindProcesses.
During capture it serializes the ProcessInstanceInfoList returned by the
API. During replay, it returns the serialized data instead of querying
the host.

The motivation for this patch is supporting the process attach workflow
during replay. Without this change it would incorrectly look for the
inferior on the host during replay and failing if no matching process
was found.

Differential revision: https://reviews.llvm.org/D75877
2020-03-13 09:31:35 -07:00