* Stas Sergeev <s...@list.ru> wrote:
> Currently x86's get_sigframe() checks for "current->sas_ss_size"
> to determine whether there is a need to switch to sigaltstack.
> The common practice used by all other arches is to check for
> sas_ss_flags(sp) == 0
>
> This patch makes the code consistent with other arches.
> The slight complexity of the patch is added by the optimization on
> !sigstack check that was requested by Andy Lutomirski: sas_ss_flags(sp)==0
> already implies that we are not on a sigstack, so the code is shuffled
> to avoid the duplicate checking.
So this changelog is missing an analysis about what effect this change will
have
on applications. Can any type of user-space code see a change in behavior? If
yes,
what will happen and is that effect desirable?
Thanks,
Ingo
