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Re: SA_SIGINFO and signal info ?
On Sun, Dec 04, 2005 at 06:20:22PM -0500, Igor Pechtchanski wrote:
>On Sun, 4 Dec 2005, Christopher Faylor wrote:
>>Thank you for the patch, but there are a couple of problems with it.
>>- Changing SI_USER could have consequences for existing applications.
>>I'm willing to change SI_USER to zero and then add a workaround later
>>if anyone squawks (since this breaks backwards compatibility) but I'm
>>not willing to change the value of every value in that enum as your
>>change above does.
>Just a quick note: the SA_SIGINFO handling was only added in the
>snapshots, so backward compatibility shouldn't be that much of an
The siginfo_t field has been in use within cygwin for almost two years.
sigwaitinfo uses it and it has been around since 2004-01-19. That's why
most of the code for handling the siginfo_t structure was already in
cygwin when Yitzchak Scott-Thoennes added SA_SIGINFO capabilities.
I don't think this will impact many programs but the potential is still
there and I'll make the appropriate changes to cygwin if someone notices
It's possible that the people who would notice this the most are Red Hat
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