From: Eli Zaretskii <eliz@gnu.org>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: lekktu@gmail.com, 12446@debbugs.gnu.org
Subject: bug#12446: port better to POSIX hosts lacking _setjmp
Date: Sat, 15 Sep 2012 13:27:13 +0300 [thread overview]
Message-ID: <83a9wrtwce.fsf@gnu.org> (raw)
In-Reply-To: <505451D2.2050307@cs.ucla.edu>
> Date: Sat, 15 Sep 2012 03:00:50 -0700
> From: Paul Eggert <eggert@cs.ucla.edu>
> CC: 12446@debbugs.gnu.org, lekktu@gmail.com
>
> > longjmp restores the environment, including the signal mask, to what
> > it was when setjmp was called.
>
> No, sometimes it does, sometimes it doesn't.
> It depends on the platform. If you want the signal mask
> restored portably, you have to do it some other way, by using
> siglongjmp or pthread_sigmask or something like that.
Yes, but from your description of the "messup" it sounds like _not_
restoring the signal mask will cause the trouble. After your changes,
we never restore the signal mask, because sigsetjmp is called with its
second argument zero.
next prev parent reply other threads:[~2012-09-15 10:27 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-14 19:44 bug#12446: port better to POSIX hosts lacking _setjmp Paul Eggert
2012-09-14 20:30 ` Eli Zaretskii
2012-09-14 21:28 ` Paul Eggert
2012-09-15 7:10 ` Paul Eggert
2012-09-15 8:08 ` Eli Zaretskii
2012-09-15 8:46 ` Paul Eggert
2012-09-15 9:41 ` Eli Zaretskii
2012-09-15 10:06 ` Paul Eggert
2012-09-15 7:12 ` Eli Zaretskii
2012-09-15 7:50 ` Paul Eggert
2012-09-15 8:28 ` Eli Zaretskii
2012-09-15 8:55 ` Paul Eggert
2012-09-15 9:44 ` Eli Zaretskii
2012-09-15 10:00 ` Paul Eggert
2012-09-15 10:27 ` Eli Zaretskii [this message]
2012-09-15 20:26 ` Paul Eggert
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