[review v3] nptl: Add struct_mutex.h

[Andreas Schwab]

On Nov 20 2019, Adhemerval Zanella (Code Review) wrote:

> diff --git a/sysdeps/nptl/bits/struct_mutex.h b/sysdeps/nptl/bits/struct_mutex.h
> new file mode 100644
> index 0000000..138320b
> --- /dev/null
> +++ b/sysdeps/nptl/bits/struct_mutex.h
> @@ -0,0 +1,84 @@
> +/* Default mutex implementation struct definitions.
> +   Copyright (C) 2019 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
> +   <http://www.gnu.org/licenses/>.  */
> +
> +#ifndef _THREAD_MUTEX_INTERNAL_H
> +#define _THREAD_MUTEX_INTERNAL_H 1
> +
> +/* Generic struct for both POSIX and C11 mutexes.  New ports are expected
> +   to use the default layout, however architecture can redefine it to
                                         architectures
> +   add arch-specific extension (such as lock-elision).  The struct have
                        extensions                                    has

> diff --git a/sysdeps/nptl/bits/thread-shared-types.h b/sysdeps/nptl/bits/thread-shared-types.h
> index f7eb8d4..0727fde 100644
> --- a/sysdeps/nptl/bits/thread-shared-types.h
> +++ b/sysdeps/nptl/bits/thread-shared-types.h

> +   1. struct __pthread_mutex_s (used on both pthread_mutex_t and mtx_t
> +      definition).  It should contains at least the internal members
                                 contain

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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