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2024-09-23[lldb] Change the implementation of Status to store an llvm::Error (NFC) ↵Adrian Prantl
(#106774) (based on a conversation I had with @labath yesterday in https://github.com/llvm/llvm-project/pull/106442) Most APIs that currently vend a Status would be better served by returning llvm::Expected<> instead. If possibles APIs should be refactored to avoid Status. The only legitimate long-term uses of Status are objects that need to store an error for a long time (which should be questioned as a design decision, too). This patch makes the transition to llvm::Error easier by making the places that cannot switch to llvm::Error explicit: They are marked with a call to Status::clone(). Every other API can and should be refactored to use llvm::Expected. In the end Status should only be used in very few places. Whenever an unchecked Error is dropped by Status it logs this to the verbose API channel. Implementation notes: This patch introduces two new kinds of error_category as well as new llvm::Error types. Here is the mapping of lldb::ErrorType to llvm::Errors: ``` (eErrorTypeInvalid) eErrorTypeGeneric llvm::StringError eErrorTypePOSIX llvm::ECError eErrorTypeMachKernel MachKernelError eErrorTypeExpression llvm::ErrorList<ExpressionError> eErrorTypeWin32 Win32Error ``` Relanding with built-in cloning support for llvm::ECError, and support for initializing a Windows error with a NO_ERROR error code, and modifying TestGDBRemotePlatformFile.py to support different renderings of ENOSYS.
2024-09-23Revert "[lldb] Change the implementation of Status to store an llvm::Error ↵Adrian Prantl
(NFC) (#106774)" This reverts commit 40d8888f13fb54b0fe840deef23054de6544c184. One last Windows failure remaining.
2024-09-23[lldb] Change the implementation of Status to store an llvm::Error (NFC) ↵Adrian Prantl
(#106774) (based on a conversation I had with @labath yesterday in https://github.com/llvm/llvm-project/pull/106442) Most APIs that currently vend a Status would be better served by returning llvm::Expected<> instead. If possibles APIs should be refactored to avoid Status. The only legitimate long-term uses of Status are objects that need to store an error for a long time (which should be questioned as a design decision, too). This patch makes the transition to llvm::Error easier by making the places that cannot switch to llvm::Error explicit: They are marked with a call to Status::clone(). Every other API can and should be refactored to use llvm::Expected. In the end Status should only be used in very few places. Whenever an unchecked Error is dropped by Status it logs this to the verbose API channel. Implementation notes: This patch introduces two new kinds of error_category as well as new llvm::Error types. Here is the mapping of lldb::ErrorType to llvm::Errors: ``` (eErrorTypeInvalid) eErrorTypeGeneric llvm::StringError eErrorTypePOSIX llvm::ECError eErrorTypeMachKernel MachKernelError eErrorTypeExpression llvm::ErrorList<ExpressionError> eErrorTypeWin32 Win32Error ``` Relanding with built-in cloning support for llvm::ECError, and support for initializing a Windows error with a NO_ERROR error code.
2024-09-20Revert "[lldb] Change the implementation of Status to store an llvm::Error ↵Adrian Prantl
(NFC) (#106774)" This reverts commit b44da2446b17aaa847bf76f81a01870917f8736b.
2024-09-20[lldb] Change the implementation of Status to store an llvm::Error (NFC) ↵Adrian Prantl
(#106774) (based on a conversation I had with @labath yesterday in https://github.com/llvm/llvm-project/pull/106442) Most APIs that currently vend a Status would be better served by returning llvm::Expected<> instead. If possibles APIs should be refactored to avoid Status. The only legitimate long-term uses of Status are objects that need to store an error for a long time (which should be questioned as a design decision, too). This patch makes the transition to llvm::Error easier by making the places that cannot switch to llvm::Error explicit: They are marked with a call to Status::clone(). Every other API can and should be refactored to use llvm::Expected. In the end Status should only be used in very few places. Whenever an unchecked Error is dropped by Status it logs this to the verbose API channel. Implementation notes: This patch introduces two new kinds of error_category as well as new llvm::Error types. Here is the mapping of lldb::ErrorType to llvm::Errors: ``` (eErrorTypeInvalid) eErrorTypeGeneric llvm::StringError eErrorTypePOSIX llvm::ECError eErrorTypeMachKernel MachKernelError eErrorTypeExpression llvm::ErrorList<ExpressionError> eErrorTypeWin32 Win32Error ``` Relanding with built-in cloning support for llvm::ECError, and support for initializing a Windows error with a NO_ERROR error code.
2024-09-20Revert "[lldb] Change the implementation of Status to store an llvm::Error ↵David Spickett
(NFC) (#106774)" This reverts commit 104b249c236578d298384416c495ff7310b97f4d because it has caused 2 test failures on Windows: https://lab.llvm.org/buildbot/#/builders/141/builds/2544 Failed Tests (2): lldb-api :: functionalities/gdb_remote_client/TestGDBRemotePlatformFile.py lldb-unit :: Utility/./UtilityTests.exe/StatusTest/ErrorWin32 I reckon the cause is the same, that we construct an error with the Win32 NO_ERROR value which means there was no error but we're assuming anything with an error code is a failure.
2024-09-19[lldb] Change the implementation of Status to store an llvm::Error (NFC) ↵Adrian Prantl
(#106774) (based on a conversation I had with @labath yesterday in https://github.com/llvm/llvm-project/pull/106442) Most APIs that currently vend a Status would be better served by returning llvm::Expected<> instead. If possibles APIs should be refactored to avoid Status. The only legitimate long-term uses of Status are objects that need to store an error for a long time (which should be questioned as a design decision, too). This patch makes the transition to llvm::Error easier by making the places that cannot switch to llvm::Error explicit: They are marked with a call to Status::clone(). Every other API can and should be refactored to use llvm::Expected. In the end Status should only be used in very few places. Whenever an unchecked Error is dropped by Status it logs this to the verbose API channel. Implementation notes: This patch introduces two new kinds of error_category as well as new llvm::Error types. Here is the mapping of lldb::ErrorType to llvm::Errors: ``` (eErrorTypeInvalid) eErrorTypeGeneric llvm::StringError eErrorTypePOSIX llvm::ECError eErrorTypeMachKernel MachKernelError eErrorTypeExpression llvm::ErrorList<ExpressionError> eErrorTypeWin32 Win32Error ``` Relanding with built-in cloning support for llvm::ECError.
2024-09-18Revert "[lldb] Change the implementation of Status to store an llvm::Error ↵Adrian Prantl
(NFC) (#106774)" This reverts commit 06939fa2e140a171132275ec0ea1857d20c5dbdd.
2024-09-18[lldb] Change the implementation of Status to store an llvm::Error (NFC) ↵Adrian Prantl
(#106774) (based on a conversation I had with @labath yesterday in https://github.com/llvm/llvm-project/pull/106442) Most APIs that currently vend a Status would be better served by returning llvm::Expected<> instead. If possibles APIs should be refactored to avoid Status. The only legitimate long-term uses of Status are objects that need to store an error for a long time (which should be questioned as a design decision, too). This patch makes the transition to llvm::Error easier by making the places that cannot switch to llvm::Error explicit: They are marked with a call to Status::clone(). Every other API can and should be refactored to use llvm::Expected. In the end Status should only be used in very few places. Whenever an unchecked Error is dropped by Status it logs this to the verbose API channel. Implementation notes: This patch introduces two new kinds of error_category as well as new llvm::Error types. Here is the mapping of lldb::ErrorType to llvm::Errors: ``` (eErrorTypeInvalid) eErrorTypeGeneric llvm::StringError eErrorTypePOSIX llvm::ECError eErrorTypeMachKernel MachKernelError eErrorTypeExpression llvm::ErrorList<ExpressionError> eErrorTypeWin32 Win32Error ```
2024-09-05[lldb] Make conversions from llvm::Error explicit with Status::FromEr… ↵Adrian Prantl
(#107163) …ror() [NFC]
2024-08-27[lldb] Turn lldb_private::Status into a value type. (#106163)Adrian Prantl
This patch removes all of the Set.* methods from Status. This cleanup is part of a series of patches that make it harder use the anti-pattern of keeping a long-lives Status object around and updating it while dropping any errors it contains on the floor. This patch is largely NFC, the more interesting next steps this enables is to: 1. remove Status.Clear() 2. assert that Status::operator=() never overwrites an error 3. remove Status::operator=() Note that step (2) will bring 90% of the benefits for users, and step (3) will dramatically clean up the error handling code in various places. In the end my goal is to convert all APIs that are of the form ` ResultTy DoFoo(Status& error) ` to ` llvm::Expected<ResultTy> DoFoo() ` How to read this patch? The interesting changes are in Status.h and Status.cpp, all other changes are mostly ` perl -pi -e 's/\.SetErrorString/ = Status::FromErrorString/g' $(git grep -l SetErrorString lldb/source) ` plus the occasional manual cleanup.
2024-04-22[lldb] Replace condition that always evaluates to false (#89685)Troy Butler
Addresses issue #87243. The current code incorrectly checks the validity of ```obj``` twice when it should be checking the new ```str_obj``` pointer. Signed-off-by: Troy-Butler <squintik@outlook.com> Co-authored-by: Troy-Butler <squintik@outlook.com>
2023-11-07[lldb] Check for abstract methods implementation in Scripted Plugin Objects ↵Med Ismail Bennani
(#71260) This patch enforces that every scripted object implements all the necessary abstract methods. Every scripted affordance language interface can implement a list of abstract methods name that checked when the object is instanciated. Since some scripting affordances implementations can be derived from template base classes, we can't check the object dictionary since it will contain the definition of the base class, so instead, this checks the scripting class dictionary. Previously, for the various python interfaces, we used `ABC.abstractmethod` decorators but this is too language specific and doesn't work for scripting affordances that are not derived from template base classes (i.e OperatingSystem, ScriptedThreadPlan, ...), so this patch provides generic/language-agnostic checks for every scripted affordance. Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>
2023-11-07Revert "[lldb] Check for abstract methods implementation in Scripted Plugin ↵Med Ismail Bennani
Objects (#71260)" This reverts commit cc9ad72713405ef8f2468c7a714a137b4a3343ba since it breaks some tests upstream: https://lab.llvm.org/buildbot/#/builders/68/builds/63112 ******************** Failed Tests (4): lldb-api :: functionalities/gdb_remote_client/TestThreadSelectionBug.py lldb-api :: functionalities/plugins/python_os_plugin/TestPythonOSPlugin.py lldb-api :: functionalities/plugins/python_os_plugin/stepping_plugin_threads/TestOSPluginStepping.py lldb-api :: functionalities/postmortem/mach-core/TestMachCore.py
2023-11-07[lldb] Check for abstract methods implementation in Scripted Plugin Objects ↵Med Ismail Bennani
(#71260) This patch enforces that every scripted object implements all the necessary abstract methods. Every scripted affordance language interface can implement a list of abstract methods name that checked when the object is instanciated. Since some scripting affordances implementations can be derived from template base classes, we can't check the object dictionary since it will contain the definition of the base class, so instead, this checks the scripting class dictionary. Previously, for the various python interfaces, we used `ABC.abstractmethod` decorators but this is too language specific and doesn't work for scripting affordances that are not derived from template base classes (i.e OperatingSystem, ScriptedThreadPlan, ...), so this patch provides generic/language-agnostic checks for every scripted affordance. Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>
2023-10-30[lldb] Adapt code to Python 3.13 (#70445)Tulio Magno Quites Machado Filho
1. Remove usage of PyEval_ThreadsInitialized and PyEval_InitThreads Both of these functions were removed in Python 3.13 [1] after being deprecated since Python 3.9. According to "What's new in Python 3.13" document [1]: Since Python 3.7, Py_Initialize() always creates the GIL: calling PyEval_InitThreads() did nothing and PyEval_ThreadsInitialized() always returned non-zero. 2. Replace _Py_IsFinalizing() with Py_IsFinalizing(). [1] https://docs.python.org/3.13/whatsnew/3.13.html
2023-09-01[lldb] Fix duplicate word typos; NFCFangrui Song
Those fixes were taken from https://reviews.llvm.org/D137338
2023-05-22[lldb] Add support for negative integer to {SB,}StructuredDataMed Ismail Bennani
This patch refactors the `StructuredData::Integer` class to make it templated, makes it private and adds 2 public specialization for both `int64_t` & `uint64_t` with a public type aliases, respectively `SignedInteger` & `UnsignedInteger`. It adds new getter for signed and unsigned interger values to the `StructuredData::Object` base class and changes the implementation of `StructuredData::Array::GetItemAtIndexAsInteger` and `StructuredData::Dictionary::GetValueForKeyAsInteger` to support signed and unsigned integers. This patch also adds 2 new `Get{Signed,Unsigned}IntegerValue` to the `SBStructuredData` class and marks `GetIntegerValue` as deprecated. Finally, this patch audits all the caller of `StructuredData::Integer` or `StructuredData::GetIntegerValue` to use the proper type as well the various tests that uses `SBStructuredData.GetIntegerValue`. rdar://105575764 Differential Revision: https://reviews.llvm.org/D150485 Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>
2022-12-14Don't include StringSwitch (NFC)Kazu Hirata
These files do not use llvm::StringSwitch.
2022-08-27[lldb] Use nullptr instead of NULL (NFC)Kazu Hirata
Identified with modernize-use-nullptr.
2022-04-27Remove Python 2 support from the ScriptInterpreter pluginJonas Devlieghere
We dropped downstream support for Python 2 in the previous release. Now that we have branched for the next release the window where this kind of change could introduce conflicts is closing too. Start by getting rid of Python 2 support in the Script Interpreter plugin. Differential revision: https://reviews.llvm.org/D124429
2022-02-03[lldb] Rename Logging.h to LLDBLog.h and clean up includesPavel Labath
Most of our code was including Log.h even though that is not where the "lldb" log channel is defined (Log.h defines the generic logging infrastructure). This worked because Log.h included Logging.h, even though it should. After the recent refactor, it became impossible the two files include each other in this direction (the opposite inclusion is needed), so this patch removes the workaround that was put in place and cleans up all files to include the right thing. It also renames the file to LLDBLog to better reflect its purpose.
2022-02-02[lldb] Convert "LLDB" log channel to the new APIPavel Labath
2022-01-24[lldb] Make PythonDataObjects work with Python 2Jonas Devlieghere
I considered keeping this change strictly downstream. Since we still have a bunch of places that check for Python 2, I figured it doesn't harm to land it upstream and avoid the conflict when I eventually do remove them (hopefully soon!).
2022-01-19[lldb] Fix D114722 for python<=3.6Pavel Labath
_Py_IsFinalizing was called _Py_Finalizing back then (and it was a variable instead of a function).
2022-01-18[lldb/python] Use PythonObject in LLDBSwigPython functionsPavel Labath
Return our PythonObject wrappers instead of raw PyObjects (obfuscated as void *). This ensures that ownership (reference counts) of python objects is automatically tracked. Differential Revision: https://reviews.llvm.org/D117462
2022-01-17[LLDB] Fix Python GIL-not-held issuesRalf Grosse-Kunstleve
The GIL must be held when calling any Python C API functions. In multithreaded applications that use callbacks this requirement can easily be violated by accident. A general tool to ensure GIL health is not available, but patching Python Py_INCREF to add an assert provides a basic health check: ``` +int PyGILState_Check(void); /* Include/internal/pystate.h */ + #define Py_INCREF(op) ( \ + assert(PyGILState_Check()), \ _Py_INC_REFTOTAL _Py_REF_DEBUG_COMMA \ ((PyObject *)(op))->ob_refcnt++) #define Py_DECREF(op) \ do { \ + assert(PyGILState_Check()); \ PyObject *_py_decref_tmp = (PyObject *)(op); \ if (_Py_DEC_REFTOTAL _Py_REF_DEBUG_COMMA \ --(_py_decref_tmp)->ob_refcnt != 0) \ ``` Adding this assertion causes around 50 test failures in LLDB. Adjusting the scope of things guarded by `py_lock` fixes them. More background: https://docs.python.org/3/glossary.html#term-global-interpreter-lock Patch by Ralf Grosse-Kunstleve Differential Revision: https://reviews.llvm.org/D114722
2021-11-10[lldb] make it easier to find LLDB's pythonLawrence D'Anna
It is surprisingly difficult to write a simple python script that can reliably `import lldb` without failing, or crashing. I'm currently resorting to convolutions like this: def find_lldb(may_reexec=False): if prefix := os.environ.get('LLDB_PYTHON_PREFIX'): if os.path.realpath(prefix) != os.path.realpath(sys.prefix): raise Exception("cannot import lldb.\n" f" sys.prefix should be: {prefix}\n" f" but it is: {sys.prefix}") else: line1, line2 = subprocess.run( ['lldb', '-x', '-b', '-o', 'script print(sys.prefix)'], encoding='utf8', stdout=subprocess.PIPE, check=True).stdout.strip().splitlines() assert line1.strip() == '(lldb) script print(sys.prefix)' prefix = line2.strip() os.environ['LLDB_PYTHON_PREFIX'] = prefix if sys.prefix != prefix: if not may_reexec: raise Exception( "cannot import lldb.\n" + f" This python, at {sys.prefix}\n" f" does not math LLDB's python at {prefix}") os.environ['LLDB_PYTHON_PREFIX'] = prefix python_exe = os.path.join(prefix, 'bin', 'python3') os.execl(python_exe, python_exe, *sys.argv) lldb_path = subprocess.run(['lldb', '-P'], check=True, stdout=subprocess.PIPE, encoding='utf8').stdout.strip() sys.path = [lldb_path] + sys.path This patch aims to replace all that with: #!/usr/bin/env lldb-python import lldb ... ... by adding the following features: * new command line option: --print-script-interpreter-info. This prints language-specific information about the script interpreter in JSON format. * new tool (unix only): lldb-python which finds python and exec's it. Reviewed By: JDevlieghere Differential Revision: https://reviews.llvm.org/D112973
2021-08-09[lldb] [gdb-remote] Add eOpenOptionReadWrite for future gdb compatMichał Górny
Modify OpenOptions enum to open the future path into synchronizing vFile:open bits with GDB. Currently, LLDB and GDB use different flag models effectively making it impossible to match bits. Notably, LLDB uses two bits to indicate read and write status, and uses union of both for read/write. GDB uses a value of 0 for read-only, 1 for write-only and 2 for read/write. In order to future-proof the code for the GDB variant: 1. Add a distinct eOpenOptionReadWrite constant to be used instead of (eOpenOptionRead | eOpenOptionWrite) when R/W access is required. 2. Rename eOpenOptionRead and eOpenOptionWrite to eOpenOptionReadOnly and eOpenOptionWriteOnly respectively, to make it clear that they do not mean to be combined and require update to all call sites. 3. Use the intersection of all three flags when matching against the three possible values. This commit does not change the actual bits used by LLDB. Differential Revision: https://reviews.llvm.org/D106984
2021-05-26[lldb][NFC] Use C++ versions of the deprecated C standard library headersRaphael Isemann
The C headers are deprecated so as requested in D102845, this is replacing them all with their (not deprecated) C++ equivalent. Reviewed By: shafik Differential Revision: https://reviews.llvm.org/D103084
2020-08-05[lldb] Use PyUnicode_GetLength instead of PyUnicode_GetSizeTatyana Krasnukha
PyUnicode_GetSize is deprecated since Python version 3.3.
2020-05-08Re-land "get rid of PythonInteger::GetInteger()"Lawrence D'Anna
This was reverted due to a python2-specific bug. Re-landing with a fix for python2. Summary: One small step in my long running quest to improve python exception handling in LLDB. Replace GetInteger() which just returns an int with As<long long> and friends, which return Expected types that can track python exceptions Reviewers: labath, jasonmolenda, JDevlieghere, vadimcn, omjavaid Reviewed By: labath, omjavaid Subscribers: omjavaid, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D78462
2020-04-23Revert "get rid of PythonInteger::GetInteger()"Muhammad Omair Javaid
This reverts commit 7375212172951d2fc283c81d03c1a8588c3280c6. This causes multiple test failures on LLDB AArch64 Linux buildbot. http://lab.llvm.org:8011/builders/lldb-aarch64-ubuntu/builds/3695 Differential Revision: https://reviews.llvm.org/D78462
2020-04-21get rid of PythonInteger::GetInteger()Lawrence D'Anna
Summary: One small step in my long running quest to improve python exception handling in LLDB. Replace GetInteger() which just returns an int with As<long long> and friends, which return Expected types that can track python exceptions Reviewers: labath, jasonmolenda, JDevlieghere, vadimcn Reviewed By: labath Subscribers: lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D78462
2020-04-07[lldb] NFC: Fix trivial typo in comments, documents, and messagesKazuaki Ishizaki
Differential Revision: https://reviews.llvm.org/D77460
2020-01-29Fix implicit conversion in the lldb Python pluginBenjamin Kramer
2020-01-24[lldb][NFC] Fix all formatting errors in .cpp file headersRaphael Isemann
Summary: A *.cpp file header in LLDB (and in LLDB) should like this: ``` //===-- TestUtilities.cpp -------------------------------------------------===// ``` However in LLDB most of our source files have arbitrary changes to this format and these changes are spreading through LLDB as folks usually just use the existing source files as templates for their new files (most notably the unnecessary editor language indicator `-*- C++ -*-` is spreading and in every review someone is pointing out that this is wrong, resulting in people pointing out that this is done in the same way in other files). This patch removes most of these inconsistencies including the editor language indicators, all the different missing/additional '-' characters, files that center the file name, missing trailing `===//` (mostly caused by clang-format breaking the line). Reviewers: aprantl, espindola, jfb, shafik, JDevlieghere Reviewed By: JDevlieghere Subscribers: dexonsmith, wuzish, emaste, sdardis, nemanjai, kbarton, MaskRay, atanasyan, arphaman, jfb, abidh, jsji, JDevlieghere, usaxena95, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D73258
2019-12-13[lldb/CMake] Rename LLDB_DISABLE_PYTHON to LLDB_ENABLE_PYTHONJonas Devlieghere
This matches the naming scheme used by LLVM and all the other optional dependencies in LLDB. Differential revision: https://reviews.llvm.org/D71482
2019-12-10[lldb/Host] Use Host/Config.h entries instead of a global define.Jonas Devlieghere
As suggested by Pavel in a code review: > Can we replace this (and maybe python too, while at it) with a > Host/Config.h entry? A global definition means that one has to > recompile everything when these change in any way, whereas in > practice only a handful of files need this.. Differential revision: https://reviews.llvm.org/D71280
2019-11-04[LLDB][Python] remove ArgInfo::countLawrence D'Anna
Summary: This patch updates the last user of ArgInfo::count and deletes it. I also delete `GetNumInitArguments()` and `GetInitArgInfo()`. Classess are callables and `GetArgInfo()` should work on them. On python 3 it already works, of course. `inspect` is good. On python 2 we have to add yet another special case. But hey if python 2 wasn't crufty we wouln't need python 3. I also delete `is_bound_method` becuase it is unused. This path is tested in `TestStepScripted.py` Reviewers: labath, mgorny, JDevlieghere Reviewed By: labath, JDevlieghere Subscribers: lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D69742
2019-10-30[LLDB][PythonFile] fix dangerous borrow semantics on python2Lawrence D'Anna
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
2019-10-29[LLDB][Python] fix another fflush issue on NetBSDLawrence D'Anna
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
2019-10-24[lldb] [Python] Do not attempt to flush() a read-only fdMichal Gorny
Summary: When creating a FileSP object, do not flush() the underlying file unless it is open for writing. Attempting to flush() a read-only fd results in EBADF on NetBSD. Reviewers: lawrence_danna, labath, krytarowski Reviewed By: lawrence_danna, labath Subscribers: lldb-commits Differential Revision: https://reviews.llvm.org/D69320
2019-10-22remove multi-argument form of PythonObject::Reset()Lawrence D'Anna
Summary: With this patch, only the no-argument form of `Reset()` remains in PythonDataObjects. It also deletes PythonExceptionState in favor of PythonException, because the only call-site of PythonExceptionState was also using Reset, so I cleaned up both while I was there. Reviewers: JDevlieghere, clayborg, labath, jingham Reviewed By: labath Subscribers: mgorny, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D69214 llvm-svn: 375475
2019-10-19eliminate nontrivial Reset(...) from TypedPythonObjectLawrence D'Anna
Summary: This deletes `Reset(...)`, except for the no-argument form `Reset()` from `TypedPythonObject`, and therefore from `PythonString`, `PythonList`, etc. It updates the various callers to use assignment, `As<>`, `Take<>`, and `Retain<>`, as appropriate. followon to https://reviews.llvm.org/D69080 Reviewers: JDevlieghere, clayborg, labath, jingham Reviewed By: labath Subscribers: lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D69133 llvm-svn: 375350
2019-10-19[LLDB] bugfix: command script add -f doesn't work for some callablesLawrence D'Anna
Summary: When users define a debugger command from python, they provide a callable object. Because the signature of the function has been extended, LLDB needs to inspect the number of parameters the callable can take. The rule it was using to decide was weird, apparently not tested, and giving wrong results for some kinds of python callables. This patch replaces the weird rule with a simple one: if the callable can take 5 arguments, it gets the 5 argument version of the signature. Otherwise it gets the old 4 argument version. It also adds tests with a bunch of different kinds of python callables with both 4 and 5 arguments. Reviewers: JDevlieghere, clayborg, labath, jingham Reviewed By: labath Subscribers: lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D69014 llvm-svn: 375333
2019-10-17eliminate one form of PythonObject::Reset()Lawrence D'Anna
Summary: I'd like to eliminate all forms of Reset() and all public constructors on these objects, so the only way to make them is with Take<> and Retain<> and the only way to copy or move them is with actual c++ copy, move, or assignment. This is a simple place to start. Reviewers: JDevlieghere, clayborg, labath, jingham Reviewed By: labath Subscribers: lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D69080 llvm-svn: 375182
2019-10-17clean up the implementation of PythonCallable::GetNumArgumentsLawrence D'Anna
Summary: The current implementation of PythonCallable::GetNumArguments is not exception safe, has weird semantics, and is just plain incorrect for some kinds of functions. Python 3.3 introduces inspect.signature, which lets us easily query for function signatures in a sane and documented way. This patch leaves the old implementation in place for < 3.3, but uses inspect.signature for modern pythons. It also leaves the old weird semantics in place, but with FIXMEs grousing about it. We should update the callers and fix the semantics in a subsequent patch. It also adds some tests. Reviewers: JDevlieghere, clayborg, labath, jingham Reviewed By: labath Subscribers: lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D68995 llvm-svn: 375181
2019-10-17delete SWIG typemaps for FILE*Lawrence D'Anna
Summary: The SWIG typemaps for FILE* are no longer used, so this patch deletes them. Reviewers: JDevlieghere, jasonmolenda, labath Reviewed By: labath Subscribers: lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D68963 llvm-svn: 375073
2019-10-15eliminate virtual methods from PythonDataObjectsLawrence D'Anna
Summary: This patch eliminates a bunch of boilerplate from PythonDataObjects, as well as the use of virtual methods. In my opinion it also makes the Reset logic a lot more clear and easy to follow. The price is yet another template. I think it's worth it. Reviewers: JDevlieghere, jasonmolenda, labath, zturner Reviewed By: JDevlieghere, labath Subscribers: lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D68918 llvm-svn: 374916