[cfe-dev] accessing command line options

Kristóf Umann via cfe-dev cfe-dev at lists.llvm.org
Thu Apr 11 06:28:07 PDT 2019


Meant to say "Cheers, Kristóf".

On Thu, 11 Apr 2019 at 15:27, Kristóf Umann <dkszelethus at gmail.com> wrote:

> Hmm. Yea, I don't think you can do that now. It might be possible somehow,
> I just don't  know how, and I doubt that there is a way. The best course of
> action would be to add a checker option.
>
> 1. Add a brief documentation about that flag in the file's headings (below
> the licence thingie)
> 2. Add a new string field to your checker class. Initialize it in the
> checker registry function (registerYourChecker) by calling
> AnalyzerOptions::getCheckerStringOption().
> 3. You may configure your checker on the command line by appending this to
> the analyzer invocation: -analyzer-config
> package.subpackage.YourChecker:YourConfig="/some/output/location"
>
> Mind you, there are around 10 patches on review that will overhaul the
> checker option interface, so you might need to rebase sometime soon on top
> of it :)
>
> Thanks for reaching out, I might take a look at this later! There are some
> legitimate cases where accessing the output dir would be neat, for example,
> we could get rid of the "ctu-dir" option entirely.
>
> Cheers,
> Husi
>
> On Thu, 11 Apr 2019 at 15:04, Kihong Heo <kihong.heo at gmail.com> wrote:
>
>> Thanks a lot.
>>
>> I want to keep some additional information and intermediate results
>> during analysis and dump it in the given output directory. What would be
>> the simplest way?
>>
>> -Kihong
>>
>> 2019. 4. 11. 오전 8:59, Kristóf Umann <dkszelethus at gmail.com> 작성:
>>
>> Hi!
>>
>> You may use the AnalyzerOptions class to retrieve analyzer specific
>> command line options, and you can get one easily from CheckerContext. For
>> the output directory, FrontendOptions should be used, but I don't think you
>> can get your hands on it from a checker callback. What would you like to
>> achieve?
>>
>> Cheers,
>> Kristóf
>>
>> On Thu, 11 Apr 2019 at 07:16, Kihong Heo via cfe-dev <
>> cfe-dev at lists.llvm.org> wrote:
>>
>>> Hi list,
>>>
>>> How can I get command line options, especially “-o” of scan-build
>>> (output directory), in a checker function such as “checkEndAnalysis”?
>>>
>>> Thanks,
>>> Kihong
>>>
>>> _______________________________________________
>>> cfe-dev mailing list
>>> cfe-dev at lists.llvm.org
>>> https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>>>
>>
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