[cfe-dev] Static Analyzer - symbolic expressions in a program

Bhargava Shastry via cfe-dev cfe-dev at lists.llvm.org
Wed Dec 9 01:57:10 PST 2015

I realized the previous patch is too big for review. The relevant diff
to get your STP patch to work on top of (clang 3457cd) is attached. Hope
it helps!


On 12/09/2015 10:50 AM, Bhargava Shastry wrote:
> Hi Ryan,
> I have been trying to get your Clang SA STP patch to work on a local
> fork of Clang (3.7, commit 3457cd5). After making a few changes, I got
> it to compile on my Unix system (Ubuntu 12.04) which is great because
> (according to the README) it hasn't been tested on non-Mac systems.
> However, I run into issues when I invoke your plug in, like so:
> ```
> clang -Xclang -load -Xclang
> ~/workspace/llvm/lib/SMTConstraintManagerPlugin.so -Xanalyzer
> -analyzer-constraints=smt --analyze tmp.c
> : CommandLine Error: Option 'debug' registered more than once!
> fatal error: error in backend: inconsistency in registered CommandLine
> options
> clang-3.7: error: clang frontend command failed with exit code 70 (use
> -v to see invocation)
> clang version 3.7.0 (http://llvm.org/git/clang.git
> 3457cd5516ac741fa106623d9578f5ac88593f4d)
> Target: x86_64-unknown-linux-gnu
> Thread model: posix
> clang-3.7: note: diagnostic msg: PLEASE submit a bug report to
> http://llvm.org/bugs/ and include the crash backtrace, preprocessed
> source, and associated run script.
> clang-3.7: note: diagnostic msg: Error generating preprocessed source(s).
> ```
> Any ideas what might be happening here. My patch attached. I am happy to
> contribute to a future stp patch to clang sa!
> Regards,
> Bhargava

Bhargava Shastry <bshastry at sec.t-labs.tu-berlin.de>
Security in Telecommunications
TU Berlin / Telekom Innovation Laboratories
Ernst-Reuter-Platz 7, Sekr TEL 17 / D - 10587 Berlin, Germany
phone: +49 30 8353 58235
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