A simple si_len field for the kernel would do this in an uncomplicated
way. Wow, 128 bytes is large for something that usually has only 3 or
so words in it.
> It makes a lot of sense to use siginfo_t for passing stuff like segfault
> address, segfault reason and the like and other Unices do it that way.
Indeed, SIGCHLD (which child) springs to mind too.
-- Jamie
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