Andres Freund <and...@anarazel.de> writes: > I experimented with making the compiler warn about about some of these > kinds of mistakes without needing full test coverage:
> I was able to get clang to warn about things like using palloc in signal > handlers, or using palloc while holding a spinlock. Which would be > great, except that it doesn't warn when there's an un-annotated > intermediary function. Even when that function is in the same TU. Hm. Couldn't we make "calling an un-annotated function" be a violation in itself? Certainly in the case of spinlocks, what we want is pretty nearly a total ban on calling anything at all. I wouldn't cry too hard about having a similar policy for signal handlers. (The postmaster's handlers would have to be an exception for now.) regards, tom lane