[LLVMdev] [cfe-dev] About Address San...

[Umesh Kalappa]

Hi John and All,
Thank you for the your  inputs,we tried running Safecode with Liblto on our
code base few weeks back,I'm very sorry to say this that we feel that
safecode is not so stable  and output is not so informative  ,Please
correct us if i'm wrong here.


Thanks Again.

~Umesh
On May 25, 2012 7:54 PM, "John Criswell" <criswell at illinois.edu> wrote:

>  On 5/25/12 6:57 AM, Umesh Kalappa wrote:
>
> Hi All ,
>
>  I'm not sure the question is relevant to the forum,My apologies if not
>
>  We are trying to instrument  our code with ASan(Clang) to find the
> memory errors and we see that the application execution halts  when the
> Asan check finds the memory issue at the being. Which mean we need to fix
> the issue then compile and  execute the instrumented code again to find the
> next issue and so on .Which is fine.
>
>  We would  like to know that there is any option to clang or llvm ,Where
> we can say to Asan to log  output to the file and continue to execute the
> instrumented application instead of halting the same.Like Valgrind memcheck
> has.So we can whole or almost issues  in the log .
>
>
> SAFECode's clang supports this feature in its debug mode; I think the
> number of failures before termination is configurable via a command-line
> option.  The price that it pays is extra performance overhead and an
> inability to detect the dereference of out-of-bounds pointers in external
> library code.
>
> SAFECode also supports a feature to log error reports to a separate file
> instead of on stderr.
>
> If you find the continued execution feature useful, please let all of us
> know.  Since these features make design tradeoffs, it's useful to learn
> what is useful and what isn't.
>
> That said, if ASan is finding a genuine memory safety error, you should
> fix that bug.
>
> -- John T.
>
>
>  For you reference
> I'm using the clang version as
>
>  [root at localhost ~]# clang --version
>  clang version 3.2 (trunk)
>   Target: i386-pc-linux-gnu
>  Thread model: posix
>
>
>  On OS
>
> Centos -6
>  [root at localhost ~]# uname -a
>  Linux localhost.localdomain 2.6.32-220.el6.i686 #1 SMP Tue Dec 6
> 16:15:40 GMT 2011 i686 i686 i386 GNU/Linux
>
>
>  Thanks
>  ~Umesh
>
>
>
>
> _______________________________________________
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>
>
>
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