[lldb-dev] Trouble running Python tests on Windows

[Ted Woodward via lldb-dev]

The bug that makes swig before 4 fail with Python 3.7 may turn into a big issue, given that swig is now licensed under GPL v3. I believe Apple has said in the past that they can’t move past a certain version of swig 2.x, since the license changed from GPL v2 to GPL v3.

From: Adrian McCarthy <amccarth at google.com>
Sent: Monday, June 24, 2019 6:43 PM
To: Ted Woodward <tedwood at quicinc.com>
Cc: Alexandre Ganea <alexandre.ganea at ubisoft.com>; LLDB <lldb-dev at lists.llvm.org>
Subject: [EXT] Re: [lldb-dev] Trouble running Python tests on Windows

I can confirm that there are problems building with Swig 4.

I've also just found that there's a bug in versions of Swig before 4 that makes the code it generates incompatible with Python 3.7.  (See lldb-dev@ for a message I just sent out about this.)

Python 3.6 with Swig 3.0.12 is working well for me on Windows.

On Fri, May 31, 2019 at 9:15 AM Ted Woodward via lldb-dev <lldb-dev at lists.llvm.org<mailto:lldb-dev at lists.llvm.org>> wrote:
Run the cmake gui, and point it to the correct source and build directories. Look for key “SWIG_EXECUTABLE”. If it doesn’t exist, set it to your swig exe. Mine is C:/swigwin-3.0.12/swig.exe , for example. If you change it, hit the configure and then generate buttons, then rebuild and rerun the tests.

I haven’t built with swig 4, just swig 3. I’ll let someone else answer if swig 4 works!

From: lldb-dev <lldb-dev-bounces at lists.llvm.org<mailto:lldb-dev-bounces at lists.llvm.org>> On Behalf Of Alexandre Ganea via lldb-dev
Sent: Friday, May 31, 2019 10:42 AM
To: lldb-dev at lists.llvm.org<mailto:lldb-dev at lists.llvm.org>
Subject: [EXT] [lldb-dev] Trouble running Python tests on Windows

Hi,

I can’t seem to run the lldb python tests on my Windows 10 setup. I use the following cmd-line to generate:

cmake -G Ninja f:/svn/llvm -DCMAKE_BUILD_TYPE=Release -DLLVM_OPTIMIZED_TABLEGEN=true -DLLVM_EXTERNAL_LLD_SOURCE_DIR=f:/svn/lld -DLLVM_EXTERNAL_CLANG_SOURCE_DIR=f:/svn/clang -DLLVM_TOOL_LLD_BUILD=true -DLLVM_TOOL_CLANG_BUILD=true -DLLVM_ENABLE_PDB=true -DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_EXTERNAL_LLDB_SOURCE_DIR=f:/svn/lldb -DLLVM_TOOL_LLDB_BUILD=true -DPYTHON_HOME="C:\Users\aganea\AppData\Local\Programs\Python\Python37"

Followed by: ninja check-all, which ends up in a bunch of:

******************** TEST 'lldb-Suite :: tools/lldb-server/TestAppleSimulatorOSType.py' FAILED ********************
Unable to find 'RESULT: PASSED' in dotest output:

lldb version 9.0.0 (https://aganea@llvm.org/svn/llvm-project/lldb/trunk revision 361826)
  clang revision 361826
  llvm revision 361826
LLDB library dir: F:\svn\buildninja\bin
LLDB import library dir: F:\svn\buildninja\bin\..\lib
Traceback (most recent call last):
  File "F:/svn/lldb/test/dotest.py", line 7, in <module>
    lldbsuite.test.run_suite()
  File "F:\svn\lldb\packages\Python\lldbsuite\test\dotest.py", line 1243, in run_suite
    import lldb
  File "F:\svn\buildninja\lib\site-packages\lldb\__init__.py", line 1500, in <module>
    class SBAddress(object):
  File "F:\svn\buildninja\lib\site-packages\lldb\__init__.py", line 1675, in SBAddress
    __swig_getmethods__["module"] = GetModule
NameError: name '__swig_getmethods__' is not defined

Swig 4.0.0 is there in %PATH%. I’m using MSVC 19.16.27031.1 for compiling. I’ve tried with Clang 8.0, same issues.
Any idea on what could be missing?

Thanks in advance!
Alex.
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