| commit | bb9df2e3bd7ec903f5040ec9e78bdc9e06561d67 | [log] [tgz] |
|---|---|---|
| author | John Harrison <harjohn@google.com> | Mon Nov 17 10:51:13 2025 -0800 |
| committer | GitHub <noreply@github.com> | Mon Nov 17 10:51:13 2025 -0800 |
| tree | 7f494fd560ec439c2c163dcd5e57b23b0141da51 | |
| parent | 6360bbbb6890c965016a98fab8ea76551f577c1f [diff] |
[lldb] Ensure FILE* access mode is correctly specified when creating a NativeFile. (#167764)
If we open a `NativeFile` with a `FILE*`, the OpenOptions default to
`eOpenOptionReadOnly`. This is an issue in python scripts if you try to
write to one of the files like `print("Hi",
file=lldb.debugger.GetOutputFileHandle())`.
To address this, we need to specify the access mode whenever we create a
`NativeFile` from a `FILE*`. I also added an assert on the `NativeFile`
that validates the file is opened with the correct access mode and
updated `NativeFile::Read` and `NativeFile::Write` to check the access
mode.
Before these changes:
```
$ lldb -b -O 'script lldb.debugger.GetOutputFileHandle().write("abc")'
(lldb) script lldb.debugger.GetOutputFileHandle().write("abc")
Traceback (most recent call last):
File "<input>", line 1, in <module>
io.UnsupportedOperation: not writable
```
After:
```
$ lldb -b -O 'script lldb.debugger.GetOutputFileHandle().write("abc")'
(lldb) script lldb.debugger.GetOutputFileHandle().write("abc")
abc3
```
Fixes #122387
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