[issue4214] no extension debug info with msvc9compiler.py
John Ehresman added the comment: I just ran into this again when I installed 2.7.10 -- evidently I had patched my local installation and forgot about it. This is very important to anyone who tries to use the Visual Studio C debugger to debug extension modules. -- nosy: +jpe ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Changes by Mark Lawrence breamore...@yahoo.co.uk: -- nosy: +steve.dower ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Changes by Steve Dower steve.do...@microsoft.com: -- assignee: tarek - steve.dower resolution: - fixed stage: - resolved status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Roundup Robot added the comment: New changeset 418095f0d711 by Steve Dower in branch '2.7': Issue #4214: Remove ineffectual /pdb:none option from msvc9compiler.py https://hg.python.org/cpython/rev/418095f0d711 New changeset 7c322c296a3b by Steve Dower in branch '3.4': Issue #4214: Remove ineffectual /pdb:none option from msvc9compiler.py https://hg.python.org/cpython/rev/7c322c296a3b New changeset 6a1c2c7b0ee0 by Steve Dower in branch '3.5': Issue #4214: Remove ineffectual /pdb:none option from msvc9compiler.py https://hg.python.org/cpython/rev/6a1c2c7b0ee0 New changeset b35df92f69e4 by Steve Dower in branch 'default': Issue #4214: Remove ineffectual /pdb:none option from msvc9compiler.py https://hg.python.org/cpython/rev/b35df92f69e4 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Mark Lawrence added the comment: Patch is against default. The entire distutils test suite ran okay. Would someone like to try this in the real world please. -- components: -Distutils2 keywords: +patch nosy: +BreamoreBoy, dstufft versions: +Python 3.4, Python 3.5 -3rd party, Python 3.1, Python 3.2 Added file: http://bugs.python.org/file35917/Issue4214.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Éric Araujo mer...@netwok.org added the comment: Thanks for explaining. Is someone willing to add a test in test_msvc9compiler? -- nosy: +loewis ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Martin v. Löwis mar...@v.loewis.de added the comment: /pdb:None initially did *not* mean no debug information, but no pdb file, see http://msdn.microsoft.com/en-us/library/aa278542(VS.60).aspx Debug information would be embedded to the DLL. Later versions of the VS documentation fail to mention None as a special value. Assuming it still has its original semantics, I fail to see the bug in this report. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Robin Dunn ro...@alldunn.com added the comment:
No, MSVC does not behave that way any longer. Now it simply creates a file
named None, so I expect that the newer versions simply do not support writing
the old-style debug info written to the DLL or EXE. If a setup script creates
more than one extension module then they all overwrite that None file.
In order to get debug info in a useable form, distutils simply can not use
/pdb:None. By removing that option entirely then debug info is generated like
normal into a *.pdb file and using the debugger to trace through the extension
module's code will happily work correctly.
I've had to have this hack in wxPython's setup.py since Python 2.6 to work
around this problem:
# Yet another distutils hack, this time for the msvc9compiler. There
# is a bug in at least version distributed with Python 2.6 where it
# adds '/pdb:None' to the linker command-line, but that just results
# in a 'None' file being created instead of putting the debug info
# into the .pyd files as expected. So we'll strip out that option via
# a monkey-patch of the msvc9compiler.MSVCCompiler.initialize method.
if os.name == 'nt' and sys.version_info = (2,6):
import distutils.msvc9compiler
_orig_initialize = distutils.msvc9compiler.MSVCCompiler.initialize
def _initialize(self, *args, **kw):
rv = _orig_initialize(self, *args, **kw)
try:
self.ldflags_shared_debug.remove('/pdb:None')
except ValueError:
pass
return rv
distutils.msvc9compiler.MSVCCompiler.initialize = _initialize
--
versions: +Python 2.6
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[issue4214] no extension debug info with msvc9compiler.py
Martin v. Löwis mar...@v.loewis.de added the comment: Ah ok, then removing the option sounds fine to me (not for 2.6, though). -- versions: -Python 2.6 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Amaury Forgeot d'Arc amaur...@gmail.com added the comment: A .pdb is the program database that contain debug info, i.e. the mapping between assembler positions and source lines, the description of data structures, and other things that are necessary to debug a program. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Éric Araujo mer...@netwok.org added the comment: What are pdb files, by the way? -- components: +Distutils2 nosy: +eric.araujo versions: +3rd party, Python 3.2 -Python 2.6, Python 3.0 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Tarek Ziadé ziade.ta...@gmail.com added the comment: Since I am unfamiliar with MSVC, I will need to digg on this, so if anyone can help on this : any idea on what would be the proper fix and why ? -- versions: +Python 2.7, Python 3.0, Python 3.1 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Changes by Akira Kitada akit...@gmail.com: -- assignee: - tarek components: +Windows nosy: +tarek ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
New submission from Robin Dunn [EMAIL PROTECTED]: It looks like part of r59290 resulted in /pdb:None always being part of the ldflags_shared_debug list. This means that there will be no debug info stored for extensions built in debug mode, which kinda negates the purpose of doing a debug build. Looking back at the revision history and comparing similar code in msvccompiler.py it looks like the /pdb:None was optionally added in the first place because of compatibility issues with earlier compilers. For MSVC 7 and 9 I think it should be fine to simply remove /pdb:None from that list. My ad hoc testing so far has not revealed any problems with making this change. -- components: Distutils messages: 75264 nosy: robind severity: normal status: open title: no extension debug info with msvc9compiler.py type: compile error versions: Python 2.6 ___ Python tracker [EMAIL PROTECTED] http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4214] no extension debug info with msvc9compiler.py
Amaury Forgeot d'Arc [EMAIL PROTECTED] added the comment: Furthermore, /PDB:None is no more supported by VC2008 express. You end up with files named None... -- nosy: +amaury.forgeotdarc ___ Python tracker [EMAIL PROTECTED] http://bugs.python.org/issue4214 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
