Failure while scanning Python's expat module

[llvmbot]

Bugzilla Link	3974
Resolution	FIXED
Resolved on	Feb 22, 2010 12:55
Version	unspecified
OS	MacOS X
Attachments	scan-build's failures folder
Reporter	LLVM Bugzilla Contributor
CC	@tkremenek

Extended Description

The April 10th checker-0.186 reliably fails while scanning a stock Python 2.6.1 build when it reaches the expat module. To reproduce, download http://python.org/ftp/python/2.6.1/Python-2.6.1.tar.bz2 and do a configure; make using scan-build.

[llvmbot]

assigned to @tkremenek

[tkremenek]

Sorry for the slow response (I was on vacation). The single reported issue in the "failures" directory has to do with Clang not supporting (or rather ignoring) the 'cdecl' attribute. We know that Clang doesn't support this (for now), so we don't need to issue a warning from scan-build about this ignored attribute. I've patched ccc-analyzer to implement to no longer report a failure for clang ignoring this attribute:

http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20090420/016078.html

This will go into checker-0.188.