Commit Graph

82 Commits

Author SHA1 Message Date
Jan Kratochvil 4112b47335 [lldb] Fix crash on SBCommandReturnObject & assignment
I was writing an SB API client and it was crashing on:
	bool DoExecute(SBDebugger dbg, char **command, SBCommandReturnObject &result) {
	  result = subcommand(dbg, "help");

That is because SBCommandReturnObject &result gets initialized inside LLDB by:
	bool DoExecute(Args &command, CommandReturnObject &result) override {
	  // std::unique_ptr gets initialized here from `&result`!!!
	  SBCommandReturnObject sb_return(&result);
	  DoExecute(...);
	  sb_return.Release();

Differential revision: https://reviews.llvm.org/D67589

llvm-svn: 373775
2019-10-04 19:32:57 +00:00
Sam McCall 4128dc4500 [lldb] Fix typo in r373675
llvm-svn: 373719
2019-10-04 09:33:04 +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
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
Davide Italiano 8c2fe4797c [Python] Update PyString_FromString() to work for python 2 and 3.
Reviewers: aprantl, JDevlieghere, friss, zturner

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D56511

llvm-svn: 350769
2019-01-09 22:52:47 +00:00
Kuba Mracek 41ae8e7445 [lldb] Introduce StackFrameRecognizer [take 3]
This patch introduces a concept of "frame recognizer" and "recognized frame". This should be an extensible mechanism that retrieves information about special frames based on ABI, arguments or other special properties of that frame, even without source code. A few examples where that could be useful could be 1) objc_exception_throw, where we'd like to get the current exception, 2) terminate_with_reason and extracting the current terminate string, 3) recognizing Objective-C frames and automatically extracting the receiver+selector, or perhaps all arguments (based on selector).

Differential Revision: https://reviews.llvm.org/D44603

llvm-svn: 345693
2018-10-31 04:00:22 +00:00
Kuba Mracek cb3628bcc0 Revert r345686 due to build failures
llvm-svn: 345688
2018-10-31 01:22:48 +00:00
Kuba Mracek 8fddd98185 [lldb] Introduce StackFrameRecognizer [take 2]
This patch introduces a concept of "frame recognizer" and "recognized frame". This should be an extensible mechanism that retrieves information about special frames based on ABI, arguments or other special properties of that frame, even without source code. A few examples where that could be useful could be 1) objc_exception_throw, where we'd like to get the current exception, 2) terminate_with_reason and extracting the current terminate string, 3) recognizing Objective-C frames and automatically extracting the receiver+selector, or perhaps all arguments (based on selector).

Differential Revision: https://reviews.llvm.org/D44603

llvm-svn: 345686
2018-10-31 00:36:20 +00:00
Kuba Mracek 377f9f9b3f Revert r345678 (build failure on Linux machines).
llvm-svn: 345680
2018-10-31 00:29:17 +00:00
Kuba Mracek ac0ba8c524 [lldb] Introduce StackFrameRecognizer
This patch introduces a concept of "frame recognizer" and "recognized frame". This should be an extensible mechanism that retrieves information about special frames based on ABI, arguments or other special properties of that frame, even without source code. A few examples where that could be useful could be 1) objc_exception_throw, where we'd like to get the current exception, 2) terminate_with_reason and extracting the current terminate string, 3) recognizing Objective-C frames and automatically extracting the receiver+selector, or perhaps all arguments (based on selector).

Differential Revision: https://reviews.llvm.org/D44603

llvm-svn: 345678
2018-10-31 00:21:03 +00:00
Jim Ingham 3815e702e7 Add a "scripted" breakpoint type to lldb.
This change allows you to write a new breakpoint type where the
logic for setting breakpoints is determined by a Python callback
written using the SB API's.

Differential Revision: https://reviews.llvm.org/D51830

llvm-svn: 342185
2018-09-13 21:35:32 +00:00
Zachary Turner 10a601adb2 Fix a python object leak in SWIG glue.
PyObject_CallFunction returns a PyObject which needs to be
decref'ed when it is no longer needed.

Patch by David Luyer
Differential Revision: https://reviews.llvm.org/D33740

llvm-svn: 305873
2017-06-21 01:52:37 +00:00
Enrico Granata a5d6765cb0 Fix an issue where the @lldb.command marker would not work with the new 5-argument version of the Python command function
This:
a) teaches PythonCallable to look inside a callable object
b) teaches PythonCallable to discover whether a callable method is bound
c) teaches lldb.command to dispatch to either the older 4 argument version or the newer 5 argument version

llvm-svn: 273640
2016-06-24 02:07:15 +00:00
Zachary Turner b359b10725 Delete PyObjectToString and use PythonObject::Str().
The latter function, from PythonDataObjects, is Python 3 ready and
the former was not.

llvm-svn: 252992
2015-11-13 01:24:25 +00:00
Zachary Turner 5b1ffdf674 Finish PyCallable -> PythonCallable conversion.
This finishes the effort to port python-wrapper.swig code over to
using PythonDataObjects.

Also included in this patch is the removal of `PyCallable` from
`python-wrapper.swig`, as it is no longer used after having been
replaced by `PythonCallable` everywhere.

There might be additional cleanup as followup patches, but it should
be all fairly simple and minor.

llvm-svn: 252939
2015-11-12 20:11:02 +00:00
Zachary Turner 02bf92d226 Fix non-Windows build after r252906.
llvm-svn: 252909
2015-11-12 17:01:48 +00:00
Zachary Turner b58fb2f47a Begin converting uses of PyCallable to PythonCallable.
PyCallable is a class that exists solely within the swig wrapper
code.  PythonCallable is a more generic implementation of the same
idea that can be used by any Python-related interop code, and lives
in PythonDataObjects.h

The CL is mostly mechanical, and it doesn't cover every possible
user of PyCallable, because I want to minimize the impact of this
change (as well as making it easier to figure out what went wrong
in case this causes a failure).  I plan to finish up the rest of
the changes in a subsequent patch, culminating in the removal of
PyCallable entirely.

llvm-svn: 252906
2015-11-12 16:23:16 +00:00
Zachary Turner b8058a5e6e Remove FindSessionDictionary and rely on PythonDataObjects.
This had been relegated to a simple forwarding function, so just
delete it in preparation of migrating all of these functions out
of python-wrapper.swig.

llvm-svn: 252803
2015-11-11 21:07:29 +00:00
Zachary Turner caab921f8a Convert python-wrapper.swig to use PythonDataObjects.
This only begins to port python-wrapper.swig over.  Since this
code can be pretty hairy, I plan to do this incrementally over a
series of patches, each time removing or converting more code
over to the PythonDataObjects code.

llvm-svn: 252788
2015-11-11 19:42:35 +00:00
Zachary Turner 88ab3c70e6 Use PythonDataObjects in swig helper functions.
Relying on manual Python C API calls is error prone, especially
when trying to maintain compatibility with Python 2 and Python 3.

This patch additionally fixes what appears to be a potentially
serious memory leak, in that were were incref'ing two values
returned from the session dictionary but never decref'ing them.
There was a comment indicating that it was intentional, but the
reasoning was, I believe, faulty and it resulted in a legitimate
memory leak.

Switching everything to PythonObject based classes solves both
the compatibility issues as well as the resource leak issues.

llvm-svn: 252536
2015-11-09 23:23:52 +00:00
Siva Chandra 9ac7a6c51f [SBValue] Add a method GetNumChildren(uint32_t max)
Summary:
Along with this, support for an optional argument to the "num_children"
method of a Python synthetic child provider has also been added. These have
been added with the following use case in mind:

Synthetic child providers currently have a method "has_children" and
"num_children". While the former is good enough to know if there are
children, it does not give any insight into how many children there are.
Though the latter serves this purpose, calculating the number for children
of a data structure could be an O(N) operation if the data structure has N
children. The new method added in this change provide a middle ground.
One can call GetNumChildren(K) to know if a child exists at an index K
which can be as large as the callers tolerance can be. If the caller wants
to know about children beyond K, it can make an other call with 2K. If the
synthetic child provider maintains state about it counting till K
previosly, then the next call is only an O(K) operation. Infact, all
calls made progressively with steps of K will be O(K) operations.

Reviewers: vharron, clayborg, granata.enrico

Subscribers: labath, lldb-commits

Differential Revision: http://reviews.llvm.org/D13778

llvm-svn: 250930
2015-10-21 19:28:08 +00:00
Siva Chandra 1f9f6c039a [LLDBSwigPythonCallTypeScript] Remove redundant call to type summary func.
Reviewers: clayborg, granata.enrico

Reviewed By: clayborg, granata.enrico

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D10625

llvm-svn: 240698
2015-06-25 21:08:30 +00:00
David Blaikie 3dfb86b641 Fix the clang -Werror build & make the unit tests link under Linux
The order of libraries passed to the linker didn't work under linux (you
need the llvm libraries first, then the lldb libraries). I modelled this
after clang's setup here. Seemed simple enough to just be consistent.

llvm-svn: 232461
2015-03-17 03:32:21 +00:00
Siva Chandra 870602dd3c Handle PyLong return values in LLDBSwigPython_CalculateNumChildren.
Summary:
Also, change its return type to size_t to match the return types of
its callers.

With this change, std::vector and std::list data formatter tests
pass on Linux (when using libstdc++) with clang as well as with gcc.
These tests have also been enabled in this patch.

Test Plan: dotest.py -p <TestDataFormatterStdVector|TestDataFormatterStdList>

Reviewers: vharron, clayborg

Reviewed By: clayborg

Subscribers: zturner, lldb-commits

Differential Revision: http://reviews.llvm.org/D8337

llvm-svn: 232399
2015-03-16 19:01:33 +00:00
Ed Maste 1cd6c667eb Strip trailing whitespace from python-wrapper.swig
(To test the dependency added in r232256.)

llvm-svn: 232257
2015-03-14 08:06:56 +00:00