Make pthread_mutex use gsync

* Makefile (libpthread-routines): Add pt-mutexattr-getrobust
pt-mutexattr-setrobust pt-mutex-consistent.
* include/pthread/pthreadtypes.h (__pthread_mutex_robustness): New enum,
containing __PTHREAD_MUTEX_STALLED, __PTHREAD_MUTEX_ROBUST.
* include/pthread/pthread.h [__USE_XOPEN2K] (PTHREAD_MUTEX_STALLED,
PTHREAD_MUTEX_ROBUST): New macros.
[__USE_XOPEN2K8] (pthread_mutex_consistent,
pthread_mutex_consistent_np): New declarations.
* sysdeps/mach/hurd/bits/mutex.h
sysdeps/mach/hurd/pt-mutex-consistent.c
sysdeps/mach/hurd/pt-mutex-destroy.c
sysdeps/mach/hurd/pt-mutex-getprioceiling.c
sysdeps/mach/hurd/pt-mutex-init.c
sysdeps/mach/hurd/pt-mutex-lock.c
sysdeps/mach/hurd/pt-mutex-setprioceiling.c
sysdeps/mach/hurd/pt-mutex-timedlock.c
sysdeps/mach/hurd/pt-mutex-transfer-np.c
sysdeps/mach/hurd/pt-mutex-trylock.c
sysdeps/mach/hurd/pt-mutex-unlock.c
sysdeps/mach/hurd/pt-mutex.h
sysdeps/mach/hurd/pt-mutexattr-destroy.c
sysdeps/mach/hurd/pt-mutexattr-getprioceiling.c
sysdeps/mach/hurd/pt-mutexattr-getprotocol.c
sysdeps/mach/hurd/pt-mutexattr-getpshared.c
sysdeps/mach/hurd/pt-mutexattr-getrobust.c
sysdeps/mach/hurd/pt-mutexattr-gettype.c
sysdeps/mach/hurd/pt-mutexattr-init.c
sysdeps/mach/hurd/pt-mutexattr-setprioceiling.c
sysdeps/mach/hurd/pt-mutexattr-setprotocol.c
sysdeps/mach/hurd/pt-mutexattr-setpshared.c
sysdeps/mach/hurd/pt-mutexattr-setrobust.c
sysdeps/mach/hurd/pt-mutexattr-settype.c
sysdeps/mach/hurd/pt-mutexattr.c: New files

1 files changed, 79 insertions, 0 deletions

diff --git a/sysdeps/mach/hurd/pt-mutex-lock.c b/sysdeps/mach/hurd/pt-mutex-lock.c
new file mode 100644
index 0000000..5d3c958
--- /dev/null
+++ b/sysdeps/mach/hurd/pt-mutex-lock.c
@@ -0,0 +1,79 @@
+/* Copyright (C) 2016 Free Software Foundation, Inc.
+   Contributed by Agustina Arzille <avarzille@riseup.net>, 2016.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License
+   as published by the Free Software Foundation; either
+   version 2 of the license, or (at your option) any later version.
+
+   This program 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 Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this program; if not, see
+   <http://www.gnu.org/licenses/>.
+*/
+
+#include <pthread.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <pt-internal.h>
+#include "pt-mutex.h"
+#include <hurdlock.h>
+
+int __pthread_mutex_lock (pthread_mutex_t *mtxp)
+{
+  struct __pthread *self;
+  int flags = mtxp->__flags & GSYNC_SHARED;
+  int ret = 0;
+
+  switch (MTX_TYPE (mtxp))
+    {
+      case PT_MTX_NORMAL:
+        lll_lock (&mtxp->__lock, flags);
+        break;
+
+      case PT_MTX_RECURSIVE:
+        self = _pthread_self ();
+        if (mtx_owned_p (mtxp, self, flags))
+          {
+            if (__glibc_unlikely (mtxp->__cnt + 1 == 0))
+              return (EAGAIN);
+
+            ++mtxp->__cnt;
+            return (ret);
+          }
+
+        lll_lock (&mtxp->__lock, flags);
+        mtx_set_owner (mtxp, self, flags);
+        mtxp->__cnt = 1;
+        break;
+
+      case PT_MTX_ERRORCHECK:
+        self = _pthread_self ();
+        if (mtx_owned_p (mtxp, self, flags))
+          return (EDEADLK);
+
+        lll_lock (&mtxp->__lock, flags);
+        mtx_set_owner (mtxp, self, flags);
+        break;
+
+      case PT_MTX_NORMAL     | PTHREAD_MUTEX_ROBUST:
+      case PT_MTX_RECURSIVE  | PTHREAD_MUTEX_ROBUST:
+      case PT_MTX_ERRORCHECK | PTHREAD_MUTEX_ROBUST:
+        self = _pthread_self ();
+        ROBUST_LOCK (self, mtxp, __lll_robust_lock, flags);
+        break;
+
+      default:
+        ret = EINVAL;
+        break;
+    }
+
+  return (ret);
+}
+
+strong_alias (__pthread_mutex_lock, _pthread_mutex_lock)
+strong_alias (__pthread_mutex_lock, pthread_mutex_lock)