158 Commits

Author SHA1 Message Date
Jim Ingham
ebaa3eb127 Python3 doesn't seem to allow you to tell whether an object is a class
PyClass_Check and everything it relied on seems gone from Python3.7.  So
I won't check whether it is a class first...

Also cleaned up a couple of warnings.

llvm-svn: 373679
2019-10-03 23:57:34 +00:00
Jim Ingham
27a14f19c8 Pass an SBStructuredData to scripted ThreadPlans on use.
This will allow us to write reusable scripted ThreadPlans, since
you can use key/value pairs with known keys in the plan to parametrize
its behavior.

Differential Revision: https://reviews.llvm.org/D68366

llvm-svn: 373675
2019-10-03 22:50:18 +00:00
Lawrence D'Anna
f913fd6eb0 factor out an abstract base class for File
Summary:
This patch factors out File as an abstract base
class and moves most of its actual functionality into
a subclass called NativeFile.   In the next patch,
I'm going to be adding subclasses of File that
don't necessarily have any connection to actual OS files,
so they will not inherit from NativeFile.

This patch was split out as a prerequisite for
https://reviews.llvm.org/D68188

Reviewers: JDevlieghere, jasonmolenda, labath

Reviewed By: labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D68317

llvm-svn: 373564
2019-10-03 04:31:46 +00:00
Lawrence D'Anna
96898eb6a9 SBDebugger::SetInputFile, SetOutputFile, etc.
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
2019-10-03 04:04:48 +00:00
Lawrence D'Anna
5750453020 new api class: SBFile
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
2019-10-03 04:01:07 +00:00
Jonas Devlieghere
2783d81791 [JSON] Use LLVM's library for encoding JSON in StructuredData
This patch replaces the hand-rolled JSON emission in StructuredData with
LLVM's JSON library.

Differential revision: https://reviews.llvm.org/D68248

llvm-svn: 373359
2019-10-01 17:41:48 +00:00
Jim Ingham
93c98346e9 Give an error when StepUsingScriptedThreadPlan is passed a bad classname.
Differential Revision: https://reviews.llvm.org/D68173

llvm-svn: 373135
2019-09-28 00:53:45 +00:00
Lawrence D'Anna
7ca15ba73f remove File::SetStream(), make new files instead.
Summary:
This patch removes File::SetStream() and File::SetDescriptor(),
and replaces most direct uses of File with pointers to File.
Instead of calling SetStream() on a file, we make a new file and
replace it.

My ultimate goal here is to introduce a new API class SBFile, which
has full support for python io.IOStream file objects.   These can
redirect read() and write() to python code, so lldb::Files will
need a way to dispatch those methods.   Additionally it will need some
form of sharing and assigning files, as a SBFile will be passed in and
assigned to the main IO streams of the debugger.

In my prototype patch queue, I make File itself copyable and add a
secondary class FileOps to manage the sharing and dispatch.  In that
case SBFile was a unique_ptr<File>.
(here: https://github.com/smoofra/llvm-project/tree/files)

However in review, Pavel Labath suggested that it be shared_ptr instead.
(here: https://reviews.llvm.org/D67793)

In order for SBFile to use shared_ptr<File>, everything else should
as well.

If this patch is accepted, I will make SBFile use a shared_ptr
I will remove FileOps from future patches and use subclasses of File
instead.

Reviewers: JDevlieghere, jasonmolenda, zturner, jingham, labath

Reviewed By: labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D67891

llvm-svn: 373090
2019-09-27 14:33:35 +00:00
Lawrence D'Anna
2fce1137c7 Convert FileSystem::Open() to return Expected<FileUP>
Summary:
This patch converts FileSystem::Open from this prototype:

Status
Open(File &File, const FileSpec &file_spec, ...);

to this one:

llvm::Expected<std::unique_ptr<File>>
Open(const FileSpec &file_spec, ...);

This is beneficial on its own, as llvm::Expected is a more modern
and recommended error type than Status.  It is also a necessary step
towards https://reviews.llvm.org/D67891, and further developments
for lldb_private::File.

Reviewers: JDevlieghere, jasonmolenda, labath

Reviewed By: labath

Subscribers: mgorny, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D67996

llvm-svn: 373003
2019-09-26 17:54:59 +00:00
Jonas Devlieghere
4d4a8eed06 remove unused method ResetOutputFileHandle()
ResetOutputFileHandle() isn't being used by anything. Also it's using
FILE*, which is something we should be doing less of. Remove it.

Patch by: Lawrence D'Anna

Differential revision: https://reviews.llvm.org/D68001

llvm-svn: 372800
2019-09-25 01:29:41 +00:00
Jonas Devlieghere
948786c929 File::SetDescriptor() should require options
lvm_private::File::GetStream() can fail if m_options == 0

It's not clear from the header a File created with a descriptor will be
not be usable by many parts of LLDB unless SetOptions is also called,
but it is.

This is because those parts of LLDB rely on GetStream() to use the
file, and that in turn relies on calling fdopen on the descriptor. When
calling fdopen, GetStream relies on m_options to determine the access
mode. If m_options has never been set, GetStream() will fail.

This patch adds options as a required argument to File::SetDescriptor
and the corresponding constructor.

Patch by: Lawrence D'Anna

Differential revision: https://reviews.llvm.org/D67792

llvm-svn: 372652
2019-09-23 20:36:46 +00:00
Jonas Devlieghere
20b52c33ba [ScriptInterpreter] Limit LLDB's globals to interactive mode.
Jim pointed out that the LLDB global variables should only be available
in interactive mode. When used from a command for example, their values
might be stale or not at all what the user expects. Therefore we want to
explicitly make these variables unavailable.

Differential revision: https://reviews.llvm.org/D67685

llvm-svn: 372192
2019-09-18 00:30:01 +00:00
Jonas Devlieghere
abb3d13778 [ScriptInterpreter] Remove ScriptInterpreterPythonImpl::Clear() (NFC)
This method is never called.

llvm-svn: 372190
2019-09-18 00:01:52 +00:00
Jonas Devlieghere
a879f40ba1 [ScriptInterpreter] Initialize globals when loading a scripting module.
The LoadScriptingModule used by command script import wasn't
initializing the LLDB global variables (things like `lldb.frame` and
`lldb.debugger`). They would get initialized however when running the
interactive script interpreter or running a single script line (e.g.
`script print(lldb.frame)`). This patch fixes that by properly
initializing the globals when loading a Python module.

Differential revision: https://reviews.llvm.org/D67644

llvm-svn: 372060
2019-09-17 03:55:58 +00:00
Jonas Devlieghere
a8f3ae7c9c [LLDB] Migrate llvm::make_unique to std::make_unique
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.

Differential revision: https://reviews.llvm.org/D66259

llvm-svn: 368933
2019-08-14 22:19:23 +00:00
Jonas Devlieghere
ea1752a79a [Gardening] Remove dead code from ScriptInterpreterPython (NFC)
The terminal state is never saved or restored.

llvm-svn: 367977
2019-08-06 04:45:59 +00:00
Jonas Devlieghere
63e5fb76ec [Logging] Replace Log::Printf with LLDB_LOG macro (NFC)
This patch replaces explicit calls to log::Printf with the new LLDB_LOGF
macro. The macro is similar to LLDB_LOG but supports printf-style format
strings, instead of formatv-style format strings.

So instead of writing:

  if (log)
    log->Printf("%s\n", str);

You'd write:

  LLDB_LOG(log, "%s\n", str);

This change was done mechanically with the command below. I replaced the
spurious if-checks with vim, since I know how to do multi-line
replacements with it.

  find . -type f -name '*.cpp' -exec \
  sed -i '' -E 's/log->Printf\(/LLDB_LOGF\(log, /g' "{}" +

Differential revision: https://reviews.llvm.org/D65128

llvm-svn: 366936
2019-07-24 17:56:10 +00:00
Konrad Kleine
248a13057a [lldb] NFC modernize codebase with modernize-use-nullptr
Summary:
NFC = [[ https://llvm.org/docs/Lexicon.html#nfc | Non functional change ]]

This commit is the result of modernizing the LLDB codebase by using
`nullptr` instread of `0` or `NULL`. See
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-nullptr.html
for more information.

This is the command I ran and I to fix and format the code base:

```
run-clang-tidy.py \
	-header-filter='.*' \
	-checks='-*,modernize-use-nullptr' \
	-fix ~/dev/llvm-project/lldb/.* \
	-format \
	-style LLVM \
	-p ~/llvm-builds/debug-ninja-gcc
```

NOTE: There were also changes to `llvm/utils/unittest` but I did not
include them because I felt that maybe this library shall be updated in
isolation somehow.

NOTE: I know this is a rather large commit but it is a nobrainer in most
parts.

Reviewers: martong, espindola, shafik, #lldb, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: arsenm, jvesely, nhaehnle, hiraditya, JDevlieghere, teemperor, rnkovacs, emaste, kubamracek, nemanjai, ki.stfu, javed.absar, arichardson, kbarton, jrtc27, MaskRay, atanasyan, dexonsmith, arphaman, jfb, jsji, jdoerfert, lldb-commits, llvm-commits

Tags: #lldb, #llvm

Differential Revision: https://reviews.llvm.org/D61847

llvm-svn: 361484
2019-05-23 11:14:47 +00:00
Fangrui Song
1d846e1a4d Delete unnecessary copy ctors
llvm-svn: 361358
2019-05-22 08:38:23 +00:00
Jonas Devlieghere
2b29b432d2 [ScriptInterpreter] Move ownership into debugger (NFC)
This is part two of the change started in r359330. This patch moves the
ownership of the script interpreter from the command interpreter into
the debugger. I would've preferred to remove the lazy initialization,
however the fact that the scripting language is set after the debugger
is created makes that tricky. So for now this does exactly the same
thing as when it was under the command interpreter. The result is that
this patch is fully NFC.

Differential revision: https://reviews.llvm.org/D61211

llvm-svn: 359354
2019-04-26 22:43:16 +00:00
Jonas Devlieghere
8d1fb84327 [ScriptInterpreter] Pass the debugger instead of the command interpreter
As discussed in D61090, there's no good reason for the script
interpreter to depend on the command interpreter. When looking at the
code, it becomes clear that we mostly use the command interpreter as a
way to access the debugger. Hence, it makes more sense to just pass that
to the script interpreter directly.

This is part 1 out of 2. I have another patch in the pipeline that
changes the ownership of the script interpreter to the debugger as well,
but I didn't get around to finish that today.

Differential revision: https://reviews.llvm.org/D61172

llvm-svn: 359330
2019-04-26 17:58:19 +00:00
Jonas Devlieghere
10b113e8aa [ScriptInterpreterPython] find_first_of -> find (NFC)
Follow up to r357198.

llvm-svn: 359138
2019-04-24 20:40:24 +00:00
Jonas Devlieghere
8b3af63b89 [NFC] Remove ASCII lines from comments
A lot of comments in LLDB are surrounded by an ASCII line to delimit the
begging and end of the comment.

Its use is not really consistent across the code base, sometimes the
lines are longer, sometimes they are shorter and sometimes they are
omitted. Furthermore, it looks kind of weird with the 80 column limit,
where the comment actually extends past the line, but not by much.
Furthermore, when /// is used for Doxygen comments, it looks
particularly odd. And when // is used, it incorrectly gives the
impression that it's actually a Doxygen comment.

I assume these lines were added to improve distinguishing between
comments and code. However, given that todays editors and IDEs do a
great job at highlighting comments, I think it's worth to drop this for
the sake of consistency. The alternative is fixing all the
inconsistencies, which would create a lot more churn.

Differential revision: https://reviews.llvm.org/D60508

llvm-svn: 358135
2019-04-10 20:48:55 +00:00
Jonas Devlieghere
63dd5d2518 [Python] Remove Python include from ScriptInterpreterPython.h
This patch limits the scope of the python header to the implementation
of the python script interpreter plugin. ScriptInterpreterPython is now
an abstract interface that doesn't expose any Python specific types, and
is implemented by the ScriptInterpreterPythonImpl.

Differential revision: https://reviews.llvm.org/D59976

llvm-svn: 357307
2019-03-29 20:17:20 +00:00
Jonas Devlieghere
05f1dd9362 [ScriptInterpreterPython] Remove unused field (NFC)
The m_lldb_module was initialized but not used.

llvm-svn: 357292
2019-03-29 17:58:07 +00:00
Jonas Devlieghere
4d63d8cf75 [CMake] Move link dependencies where they are used.
The utility library shouldn't depend on curses, libedit or python. Move
curses to core, libedit to host and python to the python plugin.

Differential revision: https://reviews.llvm.org/D59970

llvm-svn: 357287
2019-03-29 17:47:26 +00:00
Jonas Devlieghere
c712bac78b [NFC] find_first_of/find_last_of -> find/rfind for single char.
For a single char argument, find_first_of is equal to find and
find_last_of is equal to rfind. While playing around with the plugin
stuff this caused an export failure because it always got inlined except
once, which resulted in an undefined symbol.

llvm-svn: 357198
2019-03-28 18:10:14 +00:00
Jonas Devlieghere
9a6c757252 [Python] Remove unused includes
llvm-svn: 357126
2019-03-27 21:45:11 +00:00
Jonas Devlieghere
05495c5d45 [Python] Remove dynamic indirection
Now that the Python plugin relies on the SWIG symbols, we no longer need
to dynamically resolve these functions.

llvm-svn: 357034
2019-03-26 21:57:02 +00:00
Davide Italiano
5c4fad0c23 [ScriptInterpreterPython] Try to make the sanitizer bot green again.
Removing a use-after-free error.

llvm-svn: 357006
2019-03-26 16:43:58 +00:00
Jonas Devlieghere
282890d711 [Python] Define empty SWIG wrapper for unit testin"
The python plugin uses wrappers generated by swig. For the symbols to be
available, we'd need to link against liblldb, which is not an option
because the symbols could conflict with the static library we are
testing. Instead we define the symbols ourselves in the unit test.

llvm-svn: 356971
2019-03-26 01:11:15 +00:00
Jonas Devlieghere
1d1f1ba3d2 [Python] Move SWIG wrapper dependency into the plugin
This should fix the Windows bot (fingers crossed).

llvm-svn: 356967
2019-03-25 23:36:12 +00:00
Jonas Devlieghere
b29d82ebaf [ScriptInterpreterPython] Make SWIG callback private (NFC)
With the initialization taking place inside the Python script
interpreter, these function no longer need to be public. The exception
is the g_swig_init_callback which is used from the RAII object.

llvm-svn: 356944
2019-03-25 20:39:08 +00:00
Jonas Devlieghere
b01b10877d [ScriptInterpreterPython] Move SWIG initialization into the Python plugin (NFC)
Abstract initialization of the Python SWIG support in the Python plugin.

llvm-svn: 356942
2019-03-25 20:14:31 +00:00
Davide Italiano
4f9cb26063 [ScriptInterpreter] Remove a warning and reformat comments.
llvm-svn: 356819
2019-03-22 22:38:49 +00:00
Davide Italiano
386f00db75 [ScriptInterpreter] Make sure that PYTHONHOME is right.
Summary:
For the only version of Python actually supported on Darwin.

<rdar://problem/40961425>

Reviewers: jingham, friss, JDevlieghere, aprantl, jasonmolenda

Subscribers: jdoerfert, llvm-commits, lldb-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59719

llvm-svn: 356816
2019-03-22 22:19:57 +00:00
Michal Gorny
2819136f0a [lldb] Add missing EINTR handling
Differential Revision: https://reviews.llvm.org/D59606

llvm-svn: 356703
2019-03-21 19:35:55 +00:00
Davide Italiano
60be633a47 [ScriptInterpreterPython] Remove dead code.
llvm-svn: 356487
2019-03-19 17:35:40 +00:00
Dave Lee
0affb5822f Quiet command regex instructions during batch execution
Summary:
Within .lldbinit, regex commands can be structured as a list of substitutions over
multiple lines. It's possible that this is uninentional, but it works and has
benefits.

For example:

    command regex <command-name>
    s/pat1/repl1/
    s/pat2/repl2/
    ...

I use this form of `command regex` in my `~/.lldbinit`, because it makes it
clearer to write and read compared to a single line definition, because
multiline substitutions don't need to be quoted, and are broken up one per line.

However, multiline definitions result in usage instructions being printed for
each use. The result is that every time I run `lldb`, I get a dozen or more
lines of noise. With this change, the instructions are only printed when
`command regex` is invoked interactively, or from a terminal, neither of which
are true when lldb is sourcing `~/.lldbinit`.

Reviewers: clayborg, jingham

Reviewed By: clayborg

Subscribers: jdoerfert, kastiglione, xiaobai, keith, lldb-commits

Differential Revision: https://reviews.llvm.org/D48752

llvm-svn: 355793
2019-03-10 23:15:48 +00:00
Tatyana Krasnukha
1b6700eff4 Re-apply "Fix embedded Python initialization according to changes in version 3.7"
llvm-svn: 355523
2019-03-06 17:27:40 +00:00
Tatyana Krasnukha
622862987f Revert "Fix embedded Python initialization according to changes in version 3.7"
Testsuite hangs on Windows likely due to these changes.

llvm-svn: 355406
2019-03-05 15:27:33 +00:00
Tatyana Krasnukha
b30c1d571b Fix embedded Python initialization according to changes in version 3.7
Differential Revision: https://reviews.llvm.org/D58833

llvm-svn: 355388
2019-03-05 11:18:45 +00:00
Tatyana Krasnukha
b81d715cd2 Add PythonBoolean type to the PythonDataObjects
Differential Revision: https://reviews.llvm.org/D57817

llvm-svn: 354206
2019-02-16 18:39:14 +00:00
Stefan Granitz
42a9da7b35 Fix potential UB when target_file directory is null
Summary: As seen in a crash report, the C-string returned for the directory component of `target_file` can null. It should not be assigned to `std::string` directly as this is undefined behavior.

Reviewers: jingham

Reviewed By: jingham

Subscribers: jdoerfert, lldb-commits, #lldb

Differential Revision: https://reviews.llvm.org/D57964

llvm-svn: 354145
2019-02-15 16:42:29 +00:00
Jonas Devlieghere
d5b440369d Replace 'ap' with 'up' suffix in variable names. (NFC)
The `ap` suffix is a remnant of lldb's former use of auto pointers,
before they got deprecated. Although all their uses were replaced by
unique pointers, some variables still carried the suffix.

In r353795 I removed another auto_ptr remnant, namely redundant calls to
::get for unique_pointers. Jim justly noted that this is a good
opportunity to clean up the variable names as well.

I went over all the changes to ensure my find-and-replace didn't have
any undesired side-effects. I hope I didn't miss any, but if you end up
at this commit doing a git blame on a weirdly named variable, please
know that the change was unintentional.

llvm-svn: 353912
2019-02-13 06:25:41 +00:00
Jonas Devlieghere
796ac80b86 Use std::make_shared in LLDB (NFC)
Unlike std::make_unique, which is only available since C++14,
std::make_shared is available since C++11. Not only is std::make_shared
a lot more readable compared to ::reset(new), it also performs a single
heap allocation for the object and control block.

Differential revision: https://reviews.llvm.org/D57990

llvm-svn: 353764
2019-02-11 23:13:08 +00:00
Chandler Carruth
2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Jonas Devlieghere
a6682a413d Simplify Boolean expressions
This patch simplifies boolean expressions acorss LLDB. It was generated
using clang-tidy with the following command:

run-clang-tidy.py -checks='-*,readability-simplify-boolean-expr' -format -fix $PWD

Differential revision: https://reviews.llvm.org/D55584

llvm-svn: 349215
2018-12-15 00:15:33 +00:00
Jonas Devlieghere
ceff6644bb Remove header grouping comments.
This patch removes the comments grouping header includes. They were
added after running IWYU over the LLDB codebase. However they add little
value, are often outdates and burdensome to maintain.

llvm-svn: 346626
2018-11-11 23:17:06 +00:00
Jonas Devlieghere
50bc1ed290 [FileSystem] Open File instances through the FileSystem.
This patch modifies how we open File instances in LLDB. Rather than
passing a path or FileSpec to the constructor, we now go through the
virtual file system. This is needed in order to make things work with
the VFS in the future.

Differential revision: https://reviews.llvm.org/D54020

llvm-svn: 346049
2018-11-02 22:34:51 +00:00