Re: longjmp clobber warnings are utterly broken in modern gcc

Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> writes:
> On 02/01/2015 03:56 PM, Martijn van Oosterhout wrote:
>> If you want the compiler to catch this, I don't see any way without
>> requiring the code to indicate specifically which local variables it
>> intends to use, or not using the locals at all by using a seperate
>> cleanup function (as discussed elsewhere in this thread). With
>> information about the locals you might be able to conjure some GCC
>> macros to set things up to complain if you use anything else.

> I wonder how difficult it would be to teach e.g. clang static analyzer
> to catch this, rather than the compiler.

Maybe we could interest the Coverity crew in this topic. Seems like
the kind of thing they should care about.

regards, tom lane