pthreads: Add support static pthread stack. Add standard pthread_attr_setstack() and pthread_attr_getstack(). In all cases where the stack is released, add check to see which allocator must be used to free the stack: The user or the kernel allocator.

2026-09-28 15:54:57 +08:00 · 2018-08-23 09:49:20 -06:00
parent 86eef8ce3a
commit 2c93467436
19 changed files with 300 additions and 27 deletions
@@ -0,0 +1,88 @@
+/****************************************************************************
+ * libs/libc/pthread/pthread_attr_getstack.c
+ *
+ *   Copyright (C) 2018 Pinecone. All rights reserved.
+ *   Author:
+ *
+ * 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.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/types.h>
+#include <pthread.h>
+#include <string.h>
+#include <debug.h>
+#include <errno.h>
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name:  pthread_attr_getstack
+ *
+ * Description:
+ *
+ * Parameters:
+ *   attr
+ *   stacksize
+ *
+ * Return Value:
+ *   0 if successful.  Otherwise, an error code.
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+int pthread_attr_getstack(FAR pthread_attr_t *attr,
+                          FAR void **stackaddr, FAR long *stacksize)
+{
+  int ret;
+
+  linfo("attr=0x%p stackaddr=0x%p stacksize=0x%p\n", attr, stackaddr, stacksize);
+
+  if (!attr || !stackaddr || !stacksize)
+    {
+      ret = EINVAL;
+    }
+  else
+    {
+      *stackaddr = attr->stackaddr;
+      *stacksize = attr->stacksize;
+      ret = OK;
+    }
+
+  linfo("Returning %d\n", ret);
+  return ret;
+}
+
+