From: Ulrich Drepper <drepper@redhat.com>
To: "Kevin B. Hendricks" <kevin.hendricks@sympatico.ca>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Catching SIGSEGV with signal() in 2.6
Date: Mon, 05 Apr 2004 19:04:15 -0700 [thread overview]
Message-ID: <4072101F.3010603@redhat.com> (raw)
In-Reply-To: <200404052040.54301.kevin.hendricks@sympatico.ca>
Kevin B. Hendricks wrote:
> For some reason, the segfault generated by trying to write to address 0 can
> not be properly caught anymore (or at least it appears that way to me).
If the code would be correct you'd see the expected behavior.
> void SignalHdl( int sig )
> {
> bSignal = 1;
> longjmp( check_env, sig );
> }
Since you jump out of a signal handling you must use siglongmp
> int check( TestFunc func, void* p )
> {
> int result;
> bSignal = 0;
> if ( !setjmp( check_env ) )
And sigsetjmp(check_env, 1) here.
--
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
next prev parent reply other threads:[~2004-04-06 2:04 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-06 0:40 Catching SIGSEGV with signal() in 2.6 Kevin B. Hendricks
2004-04-06 2:04 ` Ulrich Drepper [this message]
2004-04-06 3:01 ` Kevin B. Hendricks
2004-04-06 4:08 ` Ulrich Drepper
2004-04-06 12:02 ` Kevin B. Hendricks
2004-04-06 15:53 ` Edgar Toernig
-- strict thread matches above, loose matches on Subject: below --
2004-04-05 15:25 bero
2004-04-05 18:17 ` Jamie Lokier
2004-04-05 19:16 ` Chris Friesen
2004-04-05 20:40 ` Jamie Lokier
2004-04-05 20:59 ` Richard B. Johnson
2004-04-05 21:11 ` Chris Friesen
2004-04-05 21:12 ` Jamie Lokier
2004-04-05 21:23 ` bero
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4072101F.3010603@redhat.com \
--to=drepper@redhat.com \
--cc=kevin.hendricks@sympatico.ca \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.