From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: cygwin-patches@cygwin.com
Subject: Re: [PATCH 1/2] Rename struct ucontext to struct mcontext
Date: Tue, 31 Mar 2015 19:03:00 -0000 [thread overview]
Message-ID: <20150331190335.GD15852@calimero.vinschen.de> (raw)
In-Reply-To: <551ADDF6.1060608@dronecode.org.uk>
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On Mar 31 18:48, Jon TURNEY wrote:
> On 30/03/2015 19:47, Corinna Vinschen wrote:
> >Just for the records what we talked about on IRC:
> >
> >On Mar 30 18:32, Jon TURNEY wrote:
> >>@@ -45,7 +49,7 @@ struct _fpstate
> >> __uint32_t padding[24];
> >> };
> >>
> >>-struct ucontext
> >>+struct mcontext
> >
> >__mcontext so as not to pollute the namespace.
> >
> >> __uint64_t etr;
> >> __uint64_t efr;
> >> __uint8_t _internal;
> >>- __uint64_t oldmask;
> >> };
> >
> >Remove _internal, keep oldmask. As a result, __mcontext is still
> >basically equivalent to Linux' mcontext_t. __mcontext can be
> >taken from _my_tls.oldmask.
>
> Thanks for your help with this.
>
> You'll have to help me understand what the difference in meaning between
> ucontext_t.uc_sigmask and ucontext_t.uc_mcontext.oldmask is.
>
> In the context of _cygtls::call_signal_handler() is _my_tls.oldmask correct
> and not this_oldmask?
Yes, this_oldmask should be the right one.
Thanks,
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat
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next prev parent reply other threads:[~2015-03-31 19:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-26 15:25 [PATCH] Make EXCEPTION_POINTERS available to signal handlers Jon TURNEY
2015-03-30 10:21 ` Corinna Vinschen
2015-03-30 17:33 ` Jon TURNEY
2015-03-30 17:33 ` [PATCH 1/2] Rename struct ucontext to struct mcontext Jon TURNEY
2015-03-30 18:47 ` Corinna Vinschen
2015-03-31 17:48 ` Jon TURNEY
2015-03-31 19:03 ` Corinna Vinschen [this message]
2015-03-30 17:33 ` [PATCH 2/2] Make CONTEXT available to signal handlers Jon TURNEY
2015-03-30 19:12 ` Corinna Vinschen
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