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### Summary
Add support for unique target ids per Target instance. This is needed
for upcoming changes to allow debugger instances to be shared across
separate DAP instances for child process debugging. We want the IDE to
be able to attach to existing targets in an already runny lldb-dap
session, and having a unique ID per target would make that easier.
Each Target instance will have its own unique id, and uses a
function-local counter in `TargetList::CreateTargetInternal` to assign
incremental unique ids.
### Tests
Added several unit tests to test basic functionality, uniqueness of
targets, and target deletion doesn't affect the uniqueness.
```
bin/lldb-dotest -p TestDebuggerAPI
```
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Add a class property for the version string. This allows you to use
access the version string through `lldb.SBDebugger.version` instead of
having to call `lldb.SBDebugger.GetVersionString()`.
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This reverts commit 9d98acb196a40fee5229afeb08f95fd36d41c10a.
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Line ending policies were changed in the parent, dccebddb3b80. To make
it easier to resolve downstream merge conflicts after line-ending
policies are adjusted this is a separate whitespace-only commit. If you
have merge conflicts as a result, you can simply `git add --renormalize
-u && git merge --continue` or `git add --renormalize -u && git rebase
--continue` - depending on your workflow.
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Recently we have disabled this test for Windows host and Linux target.
Now we faced the same issue #92419 in case of Linux x86_64 host and
Linux Aarch64 target.
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Disable the TestDebuggerAPI test in case of the remote target and
Windows host.
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(#89868)
# Motivation
Individual callers of `SBDebugger::SetDestroyCallback()` might think
that they have registered their callback and expect it to be called when
the debugger is destroyed. In reality, only the last caller survives,
and all previous callers are forgotten, which might be a surprise to
them. Worse, if this is called in a race condition, which callback
survives is less predictable, which may case confusing behavior
elsewhere.
# This PR
Allows multiple destroy callbacks to be registered and all called when
the debugger is destroyed.
**EDIT**: Adds two new APIs: `AddDestroyCallback()` and
`ClearDestroyCallback()`. `SetDestroyCallback()` will first clear then
add the given callback. Tests are added for the new APIs.
## Tests
```
bin/llvm-lit -sv ../external/llvm-project/lldb/test/API/python_api/debugger/TestDebuggerAPI.py
```
## (out-dated, see comments below) Semantic change to
`SetDestroyCallback()`
~~Currently, the method overwrites the old callback with the new one.
With this PR, it will NOT overwrite. Instead, it will hold on to both.
Both callbacks get called during destroy.~~
~~**Risk**: Although the documentation of `SetDestroyCallback()` (see
[C++](https://lldb.llvm.org/cpp_reference/classlldb_1_1SBDebugger.html#afa1649d9453a376b5c95888b5a0cb4ec)
and
[python](https://lldb.llvm.org/python_api/lldb.SBDebugger.html#lldb.SBDebugger.SetDestroyCallback))
doesn't really specify the behavior, there is a risk: if existing call
sites rely on the "overwrite" behavior, they will be surprised because
now the old callback will get called. But as the above said, the current
behavior of "overwrite" itself might be unintended, so I don't
anticipate users to rely on this behavior. In short, this risk might be
less of a problem if we correct it sooner rather than later (which is
what this PR is trying to do).~~
## (out-dated, see comments below) Implementation
~~The implementation holds a `std::vector<std::pair<callback, baton>>`.
When `SetDestroyCallback()` is called, callbacks and batons are appended
to the `std::vector`. When destroy event happen, the `(callback, baton)`
pairs are invoked FIFO. Finally, the `std::vector` is cleared.~~
# (out-dated, see comments below) Alternatives considered
~~Instead of changing `SetDestroyCallback()`, a new method
`AddDestroyCallback()` can be added, which use the same
`std::vector<std::pair<>>` implementation. Together with
`ClearDestroyCallback()` (see below), they will replace and deprecate
`SetDestroyCallback()`. Meanwhile, in order to be backward compatible,
`SetDestroyCallback()` need to be updated to clear the `std::vector` and
then add the new callback. Pros: The end state is semantically more
correct. Cons: More steps to take; potentially maintaining an
"incorrect" behavior (of "overwrite").~~
~~A new method `ClearDestroyCallback()` can be added. Might be
unnecessary at this point, because workflows which need to set then
clear callbacks may exist but shouldn't be too common at least for now.
Such method can be added later when needed.~~
~~The `std::vector` may bring slight performance drawback if its
implementation doesn't handle small size efficiently. However, even if
that's the case, this path should be very cold (only used during init
and destroy). Such performance drawback should be negligible.~~
~~A different implementation was also considered. Instead of using
`std::vector`, the current `m_destroy_callback` field can be kept
unchanged. When `SetDestroyCallback()` is called, a lambda function can
be stored into `m_destroy_callback`. This lambda function will first
call the old callback, then the new one. This way, `std::vector` is
avoided. However, this implementation is more complex, thus less
readable, with not much perf to gain.~~
---------
Co-authored-by: Roy Shi <royshi@meta.com>
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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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Adding a new SBDebugger::SetDestroyCallback() API.
This API can be used by any client to query for statistics/metrics before
exiting debug sessions.
Differential Revision: https://reviews.llvm.org/D143520
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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 moves the platform creation and selection logic into the
per-debugger platform lists. I've tried to keep functional changes to a
minimum -- the main (only) observable difference in this change is that
APIs, which select a platform by name (e.g.,
Debugger::SetCurrentPlatform) will not automatically pick up a platform
associated with another debugger (or no debugger at all).
I've also added several tests for this functionality -- one of the
pleasant consequences of the debugger isolation is that it is now
possible to test the platform selection and creation logic.
This is a product of the discussion at
<https://discourse.llvm.org/t/multiple-platforms-with-the-same-name/59594>.
Differential Revision: https://reviews.llvm.org/D120810
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It makes module dependencies loopier.
This reverts commits 49cffe3c7fab74252d4b6a073303c803dc1659f0 and
ffb9429b6f3c29ab4687b96fd85374924c98ad16.
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This patch moves the platform creation and selection logic into the
per-debugger platform lists. I've tried to keep functional changes to a
minimum -- the main (only) observable difference in this change is that
APIs, which select a platform by name (e.g.,
Debugger::SetCurrentPlatform) will not automatically pick up a platform
associated with another debugger (or no debugger at all).
I've also added several tests for this functionality -- one of the
pleasant consequences of the debugger isolation is that it is now
possible to test the platform selection and creation logic.
This is a product of the discussion at
<https://discourse.llvm.org/t/multiple-platforms-with-the-same-name/59594>.
Differential Revision: https://reviews.llvm.org/D120810
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Replace forms of `assertTrue(err.Success())` with `assertSuccess(err)` (added in D82759).
* `assertSuccess` prints out the error's message
* `assertSuccess` expresses explicit higher level semantics, both to the reader and for test failure output
* `assertSuccess` seems not to be well known, using it where possible will help spread knowledge
* `assertSuccess` statements are more succinct
Differential Revision: https://reviews.llvm.org/D119616
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There is a .categories file in the python_api directory that makes all nested tests
belong to the category "pyapi". The decorator is unnecessary for these tests.
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debugger's one"
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This reverts commit 754ab803b8dc659e3645d369d1b5d6d2f97be29e.
As pointed out in https://reviews.llvm.org/D95761, this patch could lead to
having the wrong execution context in some situations (thanks Jim!).
D92164 is addressing the same issue and will replace this patch, so I'll
revert this one.
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Use `GetSelectedExecutionContext()` instead of
`GetCommandInterpreter().GetExecutionContext()` in
`SBDebugger::GetInternalVariableValue/SBDebugger::SetInternalVariable`. The
execution context in the command interpreter might be empty, if no commands has
been executed yet (it is updated only when handling commands or completions --
e.g.
https://github.com/llvm/llvm-project/blob/main/lldb/source/Interpreter/CommandInterpreter.cpp#L1855).
Reviewed By: teemperor
Differential Revision: https://reviews.llvm.org/D95761
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debugger's one."
This reverts commit a01b26fb51c710a3a8ef88cc83b0701461f5b9ab, because it
breaks the "finish" command in some way -- the command does not
terminate after it steps out, but continues running the target. The
exact blast radius is not clear, but it at least affects the usage of
the "finish" command in TestGuiBasicDebug.py. The error is *not*
gui-related, as the same issue can be reproduced by running the same
steps outside of the gui.
There is some kind of a race going on, as the test fails only 20% of the
time on the buildbot.
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Currently, the interpreter's context is not updated until a command is executed.
This has resulted in the behavior of SB-interface functions and some commands
depends on previous user actions. The interpreter's context can stay uninitialized,
point to a currently selected target, or point to one of previously selected targets.
This patch removes any usages of CommandInterpreter::UpdateExecutionContext.
CommandInterpreter::HandleCommand* functions still may override context temporarily,
but now they always restore it before exiting. CommandInterpreter saves overriden
contexts to the stack, that makes nesting commands possible.
Added test reproduces one of the issues. Without this fix, the last assertion fails
because interpreter's execution context is empty until running "target list", so,
the value of the global property was updated instead of process's local instance.
Differential Revision: https://reviews.llvm.org/D92164
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Summary: Moves lldbsuite tests to lldb/test/API.
This is a largely mechanical change, moved with the following steps:
```
rm lldb/test/API/testcases
mkdir -p lldb/test/API/{test_runner/test,tools/lldb-{server,vscode}}
mv lldb/packages/Python/lldbsuite/test/test_runner/test lldb/test/API/test_runner
for d in $(find lldb/packages/Python/lldbsuite/test/* -maxdepth 0 -type d | egrep -v "make|plugins|test_runner|tools"); do mv $d lldb/test/API; done
for d in $(find lldb/packages/Python/lldbsuite/test/tools/lldb-vscode -maxdepth 1 -mindepth 1 | grep -v ".py"); do mv $d lldb/test/API/tools/lldb-vscode; done
for d in $(find lldb/packages/Python/lldbsuite/test/tools/lldb-server -maxdepth 1 -mindepth 1 | egrep -v "gdbremote_testcase.py|lldbgdbserverutils.py|socket_packet_pump.py"); do mv $d lldb/test/API/tools/lldb-server; done
```
lldb/packages/Python/lldbsuite/__init__.py and lldb/test/API/lit.cfg.py were also updated with the new directory structure.
Reviewers: labath, JDevlieghere
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D71151
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