Re: nptl 0.49

["dada1" <dada1 cosmosbay com>]

Doh...

in fact ENOSYS is returned by the do_futex() call only for last versions (I
checked 2.5.73)
In 2.5.68/2.5.69, EINVAL was the (wrongly chosen) error code.

So ignore this remark, or maybe test the 2 error codes to be safe...

#ifndef __ASSUME_FUTEX_REQUEUE
    cmpl    $-EINVAL, %eax
    je        7f
    cmpl    $-ENOSYS, %eax
    je      7f
#endif

Sorry for the noise.


----- Original Message ----- 
From: "dada1" <dada1 cosmosbay com>
To: "Ulrich Drepper" <drepper redhat com>; "NPT library mailing list"
<phil-list redhat com>
Sent: Thursday, June 26, 2003 6:10 AM
Subject: Re: nptl 0.49


> Hello Ulrich
>
> First, big thanks about the pthread_cond improvements.
>
> I have a remark about the use of FUTEX_REQUEUE
>
> If the linux kernel is not FUTEX_REQUEUE aware, I think the syscall
returns
> ENOSYS and not EINVAL .
>
> I suggest this change :
>
> diff -u nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
> nptl-next/sysdeps/unix/sysv/linu
> x/i386/i486/pthread_cond_signal.S
> --- nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
> 2003-06-26 06:03:54.000000000 +0200
> +++ nptl-next/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
> 2003-06-26 06:02:42.000000000 +0200
> @@ -34,7 +34,6 @@
>  #define FUTEX_REQUEUE          3
>
>  #define EINVAL                 22
> +#define        ENOSYS          38      /* Function not implemented */
>
>
>         .text
> @@ -86,7 +85,7 @@
>         ENTER_KERNEL
>
>  #ifndef __ASSUME_FUTEX_REQUEUE
> -       cmpl    $-EINVAL, %eax
> +       cmpl    $-ENOSYS, %eax
>         je      7f
>  #endif
>
> and similar changes to other files.
>
> See you
>
> Eric Dumazet
>
> ----- Original Message ----- 
> From: "Ulrich Drepper" <drepper redhat com>
> To: "NPT library mailing list" <phil-list redhat com>
> Sent: Wednesday, June 25, 2003 7:37 AM
> Subject: nptl 0.49
>
>
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > New sources at
> >
> >   http://people.redhat.com/drepper/nptl/nptl-0.49.tar.bz2
> >    ftp://people.redhat.com/drepper/nptl/nptl-0.49.tar.bz2
> >
> > The changes include:
> >
> > ~ make some test more robust
> >
> > ~ small internal optimizations
> >
> > ~ i386 pthread_cond_{,timed}wait code now uses exception based cleanup
> >   handling; this removes about 10% of the code
> >
> > ~ fully implement pthread_getcpuclockid: it is now possible to get the
> >   time for other threads
> >
> > ~ add appropriate _POSIX_* macros to announce CPU clocks on hammer and
> >   ia64
> >
> >
> > You need the glibc sources at least as of 2003-06-24T19:00:00-0700.
> >
> > - -- 
> > - --------------.                        ,-.            444 Castro
Street
> > Ulrich Drepper \    ,-----------------'   \ Mountain View, CA 94041 USA
> > Red Hat         `--' drepper at redhat.com `---------------------------
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> >
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>
>
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