[PATCH v2 1/2] support: Add xpthread_cond_signal wrapper

[Sunil Pandey]

On Fri, Sep 30, 2022 at 7:09 AM Adhemerval Zanella Netto via Libc-alpha <
libc-alpha@sourceware.org> wrote:

> LGTM, thanks.
>
> Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
>
> On 30/09/22 09:19, Yu Chien Peter Lin wrote:
> > Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com>
> > ---
> >  support/Makefile               |  1 +
> >  support/xpthread_cond_signal.c | 26 ++++++++++++++++++++++++++
> >  support/xthread.h              |  1 +
> >  3 files changed, 28 insertions(+)
> >  create mode 100644 support/xpthread_cond_signal.c
> >
> > diff --git a/support/Makefile b/support/Makefile
> > index 551d02941f..4046b12fbd 100644
> > --- a/support/Makefile
> > +++ b/support/Makefile
> > @@ -159,6 +159,7 @@ libsupport-routines = \
> >    xpthread_cancel \
> >    xpthread_check_return \
> >    xpthread_cond_wait \
> > +  xpthread_cond_signal \
> >    xpthread_create \
> >    xpthread_detach \
> >    xpthread_join \
> > diff --git a/support/xpthread_cond_signal.c
> b/support/xpthread_cond_signal.c
> > new file mode 100644
> > index 0000000000..ed0be1a8ab
> > --- /dev/null
> > +++ b/support/xpthread_cond_signal.c
> > @@ -0,0 +1,26 @@
> > +/* pthread_cond_signal with error checking.
> > +   Copyright (C) 2022 Free Software Foundation, Inc.
> > +   This file is part of the GNU C Library.
> > +
> > +   The GNU C Library is free software; you can redistribute it and/or
> > +   modify it under the terms of the GNU Lesser General Public
> > +   License as published by the Free Software Foundation; either
> > +   version 2.1 of the License, or (at your option) any later version.
> > +
> > +   The GNU C Library is distributed in the hope that it will be useful,
> > +   but WITHOUT ANY WARRANTY; without even the implied warranty of
> > +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> > +   Lesser General Public License for more details.
> > +
> > +   You should have received a copy of the GNU Lesser General Public
> > +   License along with the GNU C Library; if not, see
> > +   <https://www.gnu.org/licenses/>.  */
> > +
> > +#include <support/xthread.h>
> > +
> > +void
> > +xpthread_cond_signal (pthread_cond_t *cond)
> > +{
> > +  xpthread_check_return
> > +    ("pthread_cond_signal", pthread_cond_signal (cond));
> > +}
> > diff --git a/support/xthread.h b/support/xthread.h
> > index af06715f46..ae09649325 100644
> > --- a/support/xthread.h
> > +++ b/support/xthread.h
> > @@ -62,6 +62,7 @@ void xpthread_mutex_consistent (pthread_mutex_t *);
> >  void xpthread_spin_lock (pthread_spinlock_t *lock);
> >  void xpthread_spin_unlock (pthread_spinlock_t *lock);
> >  void xpthread_cond_wait (pthread_cond_t * cond, pthread_mutex_t *
> mutex);
> > +void xpthread_cond_signal (pthread_cond_t *cond);
> >  pthread_t xpthread_create (pthread_attr_t *attr,
> >                             void *(*thread_func) (void *), void
> *closure);
> >  void xpthread_detach (pthread_t thr);
>

I would like to backport this path to release branches. Without this patch
I get testing errors like this in 2.36 and earlier branches.

In file included from ../test-skeleton.c:45:0,
                 from tst-setuid2.c:145:
../support/check.h:29:0: error: "FAIL" redefined [-Werror]
 #define FAIL(...) \

tst-setuid2.c:33:0: note: this is the location of the previous definition
 #define FAIL(fmt, ...) \

cc1: all warnings being treated as errors

Any comments or objections?

--Sunil