[cfe-dev] scan-build failure

[Tom Care]

Hi Michael,

Sorry for the late reply, it took me a while to reproduce this.

I successfully reproduced this on Ubuntu (project wouldn't compile under OSX). It looks like a problem with the ccc-analyzer script.  I filed Bug 8070

Thanks for reporting!

Tom

On 01/09/2010, at 6:47 PM, Michael Blumenkrantz wrote:

> On Wed, 1 Sep 2010 18:34:40 -0700
> Ted Kremenek <kremenek at apple.com> wrote:
> 
>> Hi Michael,
>> 
>> From the error diagnostics it appears that they are coming from Clang when
>> httpconnection.c is compiled.  I know you said that GCC is being used as the
>> compiler, but that doesn't seem to be the case.
>> 
>> BTW, are you doing a parallel build?  It appears that url.c is analyzed
>> before httpconnection.c, so it is difficult to tell from the log what is
>> going on.
>> 
> Yes, -j2.
>> FWIW, all ccc-analyzer does is directly forward the command line arguments to
>> your compiler (e.g., gcc), and then calls clang with various analyzer comment
>> line options.  If the analyzer fails, however, that shouldn't cause the build
>> to fail.  The only reason that ccc-analyzer returns an error code is if the
>> compiler it called returned an error code.
>> 
>> Have you tried building your project with Clang?  (not using scan-build).  I
>> suspect that you'll see the same errors, and if so that will at least confirm
>> that the build is failing because clang is being used for compilation.
>> 
> The project compiles fine with both gcc and clang, but fails when using
> scan-build.  You can easily check the code out from
> http://svn.zentific.com/trunk/Zentific-console/shellinabox and test this
> yourself.
>> Also, if clang is indeed being used to build your project, I'm not certain
>> why scan-build is using clang to actually build your project unless...
>> 
>>  (a) the 'gcc' in your path is a symlink to clang
>> 
>> or
>> 
>>  (b) the environment variable CCC_CC is set to 'clang'
> I don't remember which cc I was using in the log that I sent just now, but
> neither compiler is able to finish a build when using scan-build.  Required
> functions that are detected when not using scan-build are no longer detected
> when using scan-build.
>> 
>> On Aug 31, 2010, at 9:41 PM, Michael Blumenkrantz wrote:
>> 
>>> Attached are the output for running configure and make with
>>> CCC_ANALYZER_VERBOSE set (log.txt) as well as the config.log file.  For
>>> whatever reason, when using scan-build it seems to be unable to compile
>>> using certain headers.
>> 
> Checking out the code and testing this yourselves will likely be the fastest
> way to solve this, unless it is somehow unique to my system.
> 
> -- 
> Mike Blumenkrantz
> Zentific: Our boolean values are huge.

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