> On Oct 26, 2021, at 6:56 AM, Jason Thorpe <thor...@me.com> wrote: > > Obviously, the practical impact of this is nil, since no one apparently > noticed (and I guess we didn’t break any programs that people were using). We > haven’t documented that style of handler for a VERY long time but presumably > the intent was for it to continue to work because the code remained and was > modified several times over the years. (it was certainly my original intent > when I first added support for multiple signal trampolines in a single > process ~20 years ago, and it did in fact work for the first few years that > code existed).
Oh, I suppose I should also point out that kernel support for the older trampoline is in the COMPAT_16 module (the new “siginfo” stuff was added in NetBSD 2.0). -- thorpej
