Summary:
It is inherently unsafe to allow a python program to manipulate borrowed
memory from a python object's destructor. It would be nice to
flush a borrowed file when python is finished with it, but it's not safe
to do on python 2.
Python 3 does not suffer from this issue.
Reviewers: labath, mgorny
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D69532
Summary:
Here's another instance where we were calling fflush on an input
stream, which is illegal on NetBSD.
Reviewers: labath, mgorny
Reviewed By: mgorny
Subscribers: krytarowski, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D69488
Summary:
ScriptInterpreterPython needs to save and restore sys.stdout and
friends when LLDB runs a python script.
It currently does this using FILE*, which is not optimal. If
whatever was in sys.stdout can not be represented as a FILE*, then
it will not be restored correctly when the script is finished.
It also means that if the debugger's own output stream is not
representable as a file, ScriptInterpreterPython will not be able
to redirect python's output correctly.
This patch updates ScriptInterpreterPython to represent files with
lldb_private::File, and to represent whatever the user had in
sys.stdout as simply a PythonObject.
This will make lldb interoperate better with other scripts or programs
that need to manipulate sys.stdout.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68962
llvm-svn: 374964
Summary:
This patch removes FILE* and replaces it with SBFile and FileSP the
SWIG interface for `SBStream.i`. And this is the last one. With
this change, nothing in the python API will can access a FILE* method
on the C++ side.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68960
llvm-svn: 374924
Summary:
This patch converts the swig wrappers for SetInputFileHandle() and friends
to emulate the old behavior using SetInputFile().
This will clear the way for deleting the FILE* typemaps altogether.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: mehdi_amini, dexonsmith, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68856
llvm-svn: 374912
Summary:
This makes SBFile::GetFile public and adds a SWIG typemap to convert
the result back into a python native file.
If the underlying File itself came from a python file, it is returned
identically. Otherwise a new python file object is created using
the file descriptor.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68737
llvm-svn: 374911
Summary:
IOHandler needs to read lines of input from a lldb::File.
The way it currently does this using, FILE*, which is something
we want to avoid now. I'd prefer to just replace the FILE* code
with calls to File::Read, but it contains an awkward and
delicate workaround specific to ctrl-C handling on windows, and
it's not clear if or how that workaround would translate to
lldb::File.
So in this patch, we use use the FILE* if it's available, and only
fall back on File::Read if that's the only option.
I think this is a reasonable approach here for two reasons. First
is that interactive terminal support is the one area where FILE*
can't be avoided. We need them for libedit and curses anyway,
and using them here as well is consistent with that pattern.
The second reason is that the comments express a hope that the
underlying windows bug that's being worked around will be fixed one
day, so hopefully when that happens, that whole path can be deleted.
Reviewers: JDevlieghere, jasonmolenda, labath, lanza
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68622
llvm-svn: 374576
Summary:
Python 3.6 stringifies exceptions as `ExceptionClass("foo",)` instead
of `ExceptionClass("foo")`. This patch makes the test assertions a
little more flexible so the test passes anyway.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68745
llvm-svn: 374417
the exceptions returned differ between swig4 (TypeError) and swig<=3
(NotImplementedError). Just check for the base Exception class instead.
Theoretically we could switch on the swig version and expect the precise
type directly, but checking the exact type does not seem that important.
Thanks to Raphael for helping me figure this out.
llvm-svn: 374322
The test isn't using @expectedFailure correctly, which causes weird
errors, at least with python2, at least with linux. Possibly that
function shouldn't even be public as it's main use is as a backed for
other decorators.
llvm-svn: 374299
Summary:
It's really annoying and confusing to have to keep referring
back to earlier versions of this SBFile work to find the
tests that need to be added for each patch, and not duplicate
them with new tests.
This patch just imports all my tests. A bunch of them don't
work yet, so they are marked to be skipped. They'll be
unmarked as I fix them.
One of these tests will actually trip an assert in the SWIG
code now instead of just failing, so I'm fixing that here too.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: JDevlieghere, labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68433
llvm-svn: 374237
Summary:
This patch adds SWIG typemaps that can convert arbitrary python
file objects into lldb_private::File.
A SBFile may be initialized from a python file using the
constructor. There are also alternate, tagged constructors
that allow python files to be borrowed, and for the caller
to control whether or not the python I/O methods will be
called even when a file descriptor is available.I
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: zturner, amccarth, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68188
llvm-svn: 374225
Summary:
Add new methods to SBDebugger to set IO files as SBFiles instead of
as FILE* streams.
In future commits, the FILE* methods will be deprecated and these
will become the primary way to set the debugger I/O streams.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68181
llvm-svn: 373563
Summary:
SBFile is a scripting API wrapper for lldb_private::File
This is the first step in a project to enable arbitrary python
io.IOBase file objects -- including those that override the read()
and write() methods -- to be used as the main debugger IOStreams.
Currently this is impossible because python file objects must first
be converted into FILE* streams by SWIG in order to be passed into
the debugger.
full prototype: https://github.com/smoofra/llvm-project/tree/files
Reviewers: JDevlieghere, jasonmolenda, zturner, jingham, labath
Reviewed By: labath
Subscribers: labath, mgorny, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67793
llvm-svn: 373562
SetOututFileHandle to work with IOBase.
I did make one change after checking with Larry --
I renamed SBDebugger::Flush to FlushDebuggerOutputHandles
and added a short docstring to the .i file to make it
a little clearer under which context programs may need
to use this API.
Differential Revision: https://reviews.llvm.org/D39128
<rdar://problem/34870417>
llvm-svn: 317182
