Rename files for kernel namespace script

This makes it easier to create the kernel namespace header.

1 files changed, 293 insertions, 0 deletions

diff --git a/rtemsbsd/rtems/rtems-kernel-rwlock.c b/rtemsbsd/rtems/rtems-kernel-rwlock.c
new file mode 100644
index 00000000..d0b911d5
--- /dev/null
+++ b/rtemsbsd/rtems/rtems-kernel-rwlock.c
@@ -0,0 +1,293 @@
+/**
+ * @file
+ *
+ * @ingroup rtems_bsd_rtems
+ *
+ * @brief TODO.
+ */
+
+/*
+ * Copyright (c) 2011 OPTI Medical.  All rights reserved.
+ *
+ *  OPTI Medical
+ *  235 Hembree Park Drive
+ *  Roswell, GA 30076
+ *  USA
+ *  <kevin.kirspel@optimedical.com>
+ *
+ * Copyright (c) 2013-2015 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <machine/rtems-bsd-kernel-space.h>
+#include <machine/rtems-bsd-muteximpl.h>
+
+#include <rtems/bsd/sys/param.h>
+#include <rtems/bsd/sys/types.h>
+#include <sys/systm.h>
+#include <rtems/bsd/sys/lock.h>
+#include <sys/rwlock.h>
+
+#ifndef INVARIANTS
+#define _rw_assert(rw, what, file, line)
+#endif
+
+static void assert_rw(struct lock_object *lock, int what);
+static void lock_rw(struct lock_object *lock, int how);
+#ifdef KDTRACE_HOOKS
+static int  owner_rw(struct lock_object *lock, struct thread **owner);
+#endif
+static int  unlock_rw(struct lock_object *lock);
+
+struct lock_class lock_class_rw = {
+  .lc_name = "rw",
+  .lc_flags = LC_SLEEPLOCK | LC_RECURSABLE | LC_UPGRADABLE,
+  .lc_assert = assert_rw,
+#ifdef DDB
+  .lc_ddb_show = db_show_rwlock,
+#endif
+  .lc_lock = lock_rw,
+  .lc_unlock = unlock_rw,
+#ifdef KDTRACE_HOOKS
+  .lc_owner = owner_rw,
+#endif
+};
+
+#define rw_wowner(rw) ((rw)->mutex.owner)
+
+#define rw_recursed(rw) ((rw)->mutex.nest_level != 0)
+
+void
+assert_rw(struct lock_object *lock, int what)
+{
+  rw_assert((struct rwlock *)lock, what);
+}
+
+void
+lock_rw(struct lock_object *lock, int how)
+{
+  rw_wlock((struct rwlock *)lock);
+}
+
+int
+unlock_rw(struct lock_object *lock)
+{
+  rw_unlock((struct rwlock *)lock);
+
+  return (0);
+}
+
+#ifdef KDTRACE_HOOKS
+int
+owner_rw(struct lock_object *lock, struct thread **owner)
+{
+  struct rwlock *rw = (struct rwlock *)lock;
+  uintptr_t x = rw->rw_lock;
+
+  *owner = rw_wowner(rw);
+  return ((x & RW_LOCK_READ) != 0 ?  (RW_READERS(x) != 0) :
+      (*owner != NULL));
+}
+#endif
+
+void
+rw_init_flags(struct rwlock *rw, const char *name, int opts)
+{
+	int flags;
+
+	flags = LO_UPGRADABLE;
+	if (opts & RW_RECURSE)
+		flags |= LO_RECURSABLE;
+
+	rtems_bsd_mutex_init(&rw->lock_object, &rw->mutex, &lock_class_rw,
+	    name, NULL, flags);
+}
+
+void
+rw_destroy(struct rwlock *rw)
+{
+
+	rtems_bsd_mutex_destroy(&rw->lock_object, &rw->mutex);
+}
+
+void
+rw_sysinit(void *arg)
+{
+  struct rw_args *args = arg;
+
+  rw_init(args->ra_rw, args->ra_desc);
+}
+
+void
+rw_sysinit_flags(void *arg)
+{
+  struct rw_args_flags *args = arg;
+
+  rw_init_flags(args->ra_rw, args->ra_desc, args->ra_flags);
+}
+
+int
+rw_wowned(struct rwlock *rw)
+{
+	return (rtems_bsd_mutex_owned(&rw->mutex));
+}
+
+void
+_rw_wlock(struct rwlock *rw, const char *file, int line)
+{
+	rtems_bsd_mutex_lock(&rw->lock_object, &rw->mutex);
+}
+
+int
+_rw_try_wlock(struct rwlock *rw, const char *file, int line)
+{
+	return (rtems_bsd_mutex_trylock(&rw->lock_object, &rw->mutex));
+}
+
+void
+_rw_wunlock(struct rwlock *rw, const char *file, int line)
+{
+	rtems_bsd_mutex_unlock(&rw->mutex);
+}
+
+void
+_rw_rlock(struct rwlock *rw, const char *file, int line)
+{
+	rtems_bsd_mutex_lock(&rw->lock_object, &rw->mutex);
+}
+
+int
+_rw_try_rlock(struct rwlock *rw, const char *file, int line)
+{
+	return (rtems_bsd_mutex_trylock(&rw->lock_object, &rw->mutex));
+}
+
+void
+_rw_runlock(struct rwlock *rw, const char *file, int line)
+{
+	rtems_bsd_mutex_unlock(&rw->mutex);
+}
+
+int
+_rw_try_upgrade(struct rwlock *rw, const char *file, int line)
+{
+	return (1);
+}
+
+void
+_rw_downgrade(struct rwlock *rw, const char *file, int line)
+{
+	/* Nothing to do */
+}
+
+#ifdef INVARIANT_SUPPORT
+#ifndef INVARIANTS
+#undef _rw_assert
+#endif
+
+/*
+ * In the non-WITNESS case, rw_assert() can only detect that at least
+ * *some* thread owns an rlock, but it cannot guarantee that *this*
+ * thread owns an rlock.
+ */
+void
+_rw_assert(struct rwlock *rw, int what, const char *file, int line)
+{
+
+  if (panicstr != NULL)
+    return;
+  switch (what) {
+  case RA_LOCKED:
+  case RA_LOCKED | RA_RECURSED:
+  case RA_LOCKED | RA_NOTRECURSED:
+  case RA_RLOCKED:
+#ifndef __rtems__
+#ifdef WITNESS
+    witness_assert(&rw->lock_object, what, file, line);
+#else
+    /*
+     * If some other thread has a write lock or we have one
+     * and are asserting a read lock, fail.  Also, if no one
+     * has a lock at all, fail.
+     */
+    if (rw->rw_lock == RW_UNLOCKED ||
+        (!(rw->rw_lock & RW_LOCK_READ) && (what == RA_RLOCKED ||
+        rw_wowner(rw) != curthread)))
+      panic("Lock %s not %slocked @ %s:%d\n",
+          rw->lock_object.lo_name, (what == RA_RLOCKED) ?
+          "read " : "", file, line);
+
+    if (!(rw->rw_lock & RW_LOCK_READ)) {
+      if (rw_recursed(rw)) {
+        if (what & RA_NOTRECURSED)
+          panic("Lock %s recursed @ %s:%d\n",
+              rw->lock_object.lo_name, file,
+              line);
+      } else if (what & RA_RECURSED)
+        panic("Lock %s not recursed @ %s:%d\n",
+            rw->lock_object.lo_name, file, line);
+    }
+#endif
+    break;
+#else /* __rtems__ */
+    /* FALLTHROUGH */
+#endif /* __rtems__ */
+  case RA_WLOCKED:
+  case RA_WLOCKED | RA_RECURSED:
+  case RA_WLOCKED | RA_NOTRECURSED:
+    if (rw_wowner(rw) != _Thread_Get_executing())
+      panic("Lock %s not exclusively locked @ %s:%d\n",
+          rw->lock_object.lo_name, file, line);
+    if (rw_recursed(rw)) {
+      if (what & RA_NOTRECURSED)
+        panic("Lock %s recursed @ %s:%d\n",
+            rw->lock_object.lo_name, file, line);
+    } else if (what & RA_RECURSED)
+      panic("Lock %s not recursed @ %s:%d\n",
+          rw->lock_object.lo_name, file, line);
+    break;
+  case RA_UNLOCKED:
+#ifdef WITNESS
+    witness_assert(&rw->lock_object, what, file, line);
+#else
+    /*
+     * If we hold a write lock fail.  We can't reliably check
+     * to see if we hold a read lock or not.
+     */
+    if (rw_wowner(rw) == _Thread_Get_executing())
+      panic("Lock %s exclusively locked @ %s:%d\n",
+          rw->lock_object.lo_name, file, line);
+#endif
+    break;
+  default:
+    panic("Unknown rw lock assertion: %d @ %s:%d", what, file,
+        line);
+  }
+}
+#endif /* INVARIANT_SUPPORT */