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dumped (#95075)
# Added/changed options
The following options are **added** to the `statistics dump` command:
* `--targets=bool`: Boolean. Dumps the `targets` section.
* `--modules=bool`: Boolean. Dumps the `modules` section.
When both options are given, the field `moduleIdentifiers` will be
dumped for each target in the `targets` section.
The following options are **changed**:
* `--transcript=bool`: Changed to a boolean. Dumps the `transcript`
section.
# Behavior of `statistics dump` with various options
The behavior is **backward compatible**:
- When no options are provided, `statistics dump` dumps all sections.
- When `--summary` is provided, only dumps the summary info.
**New** behavior:
- `--targets=bool`, `--modules=bool`, `--transcript=bool` overrides the
above "default".
For **example**:
- `statistics dump --modules=false` dumps summary + targets +
transcript. No modules.
- `statistics dump --summary --targets=true --transcript=true` dumps
summary + targets (in summary mode) + transcript.
# Added options into public API
In `SBStatisticsOptions`, add:
* `Set/GetIncludeTargets`
* `Set/GetIncludeModules`
* `Set/GetIncludeTranscript`
**Alternative considered**: Thought about adding
`Set/GetIncludeSections(string sections_spec)`, which receives a
comma-separated list of section names to be included ("targets",
"modules", "transcript"). The **benefit** of this approach is that the
API is more future-proof when it comes to possible adding/changing of
section names. **However**, I feel the section names are likely to
remain unchanged for a while - it's not like we plan to make big changes
to the output of `statistics dump` any time soon. The **downsides** of
this approach are: 1\ the readability of the API is worse (requires
reading doc to understand what string can be accepted), 2\ string input
are more prone to human error (e.g. typo "target" instead of expected
"targets").
# Tests
```
bin/llvm-lit -sv ../external/llvm-project/lldb/test/API/commands/statistics/basic/TestStats.py
```
```
./tools/lldb/unittests/Interpreter/InterpreterTests
```
New test cases have been added to verify:
* Different sections are dumped/not dumped when different
`StatisticsOptions` are given through command line (CLI or
`HandleCommand`; see `test_sections_existence_through_command`) or API
(see `test_sections_existence_through_api`).
* The order in which the options are given in command line does not
matter (see `test_order_of_options_do_not_matter`).
---------
Co-authored-by: Roy Shi <royshi@meta.com>
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Updates:
- The previous patch changed the default behavior to not load dwos in
`DWARFUnit`
~~`SymbolFileDWARFDwo *GetDwoSymbolFile(bool load_all_debug_info =
false);`~~
`SymbolFileDWARFDwo *GetDwoSymbolFile(bool load_all_debug_info = true);`
- This broke some lldb-shell tests (see
https://green.lab.llvm.org/green/view/LLDB/job/as-lldb-cmake/16273/)
- TestDebugInfoSize.py
- with symbol on-demand, by default statistics dump only reports
skeleton debug info size
- `statistics dump -f` will load all dwos. debug info = skeleton debug
info + all dwo debug info
Currently running `statistics dump` will trigger lldb to load debug info
that's not yet loaded (eg. dwo files). Resulted in a delay in the
command return, which, can be interrupting.
This patch also added a new option `--load-all-debug-info` asking
statistics to dump all possible debug info, which will force loading all
debug info available if not yet loaded.
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This reverts commit 21ddd7ff2b166c5e133b460b1a09ee8adb786ccd because it
breaks a bunch of tests:
https://lab.llvm.org/buildbot/#/builders/68/builds/69018
https://green.lab.llvm.org/green/view/LLDB/job/as-lldb-cmake/16273
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Currently running `statistics dump` will trigger lldb to load debug info
that's not yet loaded (eg. dwo files). Resulted in a delay in the
command return, which, can be interrupting.
This patch also added a new option `--load-all-debug-info` asking
statistics to dump all possible debug info, which will force loading all
debug info available if not yet loaded.
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Add a new --summary option to statistics dump command so that it is
much more light weight than the full version.
Introduce a new SBStatisticsOptions API setting the verbosity of statistics dump.
[PR
#80218](https://github.com/llvm/llvm-project/pull/80218#discussion_r1473639878)
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