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assertEquals is a deprecated alias for assertEqual and has been removed
in Python 3.12. This wasn't an issue previously because we used a
vendored version of the unittest module. Now that we use the built-in
version this gets updated together with the Python version used to run
the test suite.
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This is an ongoing series of commits that are reformatting our Python
code. Reformatting is done with `black` (23.1.0).
If you end up having problems merging this commit because you have made
changes to a python file, the best way to handle that is to run `git
checkout --ours <yourfile>` and then reformat it with black.
RFC: https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style
Differential revision: https://reviews.llvm.org/D151460
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The exit code of the (funky) test inferior depends on the linux kernel
version (changed some time between 5.15 and 6.1).
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Eliminate boilerplate of having each test manually assign to `mydir` by calling
`compute_mydir` in lldbtest.py.
Differential Revision: https://reviews.llvm.org/D128077
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This patch handles the situation where the main thread exits (through
the SYS_exit syscall). In this case, the process as a whole continues
running until all of the other threads exit, or one of them issues an
exit_group syscall.
The patch consists of two changes:
- a moderate redesign of the handling of thread exit (WIFEXITED) events.
Previously, we were removing (forgetting) a thread once we received
the WIFEXITED (or WIFSIGNALED) event. This was problematic for the
main thread, since the main thread WIFEXITED event (which is better thought
of as a process-wide event) gets reported only after the entire process
exits. This resulted in deadlocks, where we were waiting for the
process to stop (because we still considered the main thread "live").
This patch changes the logic such that the main thread is removed as
soon as its PTRACE_EVENT_EXIT (the pre-exit) event is received. At
this point we can consider the thread gone (for most purposes). As a
corrolary, I needed to add special logic to catch process-wide exit
events in the cases where we don't have the main thread around.
- The second part of the patch is the removal of the assumptions that
the main thread is always available. This generally meant replacing
the uses of GetThreadByID(process_id) with GetCurrentThread() in
various process-wide operations (such as memory reads).
Differential Revision: https://reviews.llvm.org/D122716
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