On Sun, 10. Jan 16:32, Zane van Iperen wrote:
> On 29/11/20 5:46 am, Andriy Gelman wrote:
>
> > void term_init(void)
> > {
> > +#if defined __linux__
> > + struct sigaction action;
Hi Zane,
Thanks for reviewing the patch.
>
> Nit: Should this have a "= {0}"?
>
> My sigaction(2) says:
> On some architectures a union is involved: do not assign to both sa_handler
> and sa_sigaction.
> so it's possible that sa_sigaction is left uninitialised.
>
> If I'm wrong (quite possible, it's 2am), then part 1 lgtm.
>
SA_SIGINFO in sa_flags used to decide whether sa_handler or sa_sigaction is
chosen from the union.
But, there is one function pointer sa_restorer in struct sigaction that's
currently not initialized. The docs say this pointer is used internally by
glibc/kernel, and should not be used by applications. It doesn't say that it
needs to be set to NULL, but I suppose it's a good practise. I'll add your
suggestion to the patch.
Will apply the patch in a few days unless there are other comments.
--
Andriy
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