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From GitBox <...@apache.org>
Subject [GitHub] [incubator-nuttx] patacongo commented on a change in pull request #987: Implement the up_tls_info for the rest of the architectures
Date Wed, 06 May 2020 23:40:46 GMT

patacongo commented on a change in pull request #987:
URL: https://github.com/apache/incubator-nuttx/pull/987#discussion_r421154061



##########
File path: arch/avr/include/avr32/arch.h
##########
@@ -0,0 +1,84 @@
+/****************************************************************************
+ * arch/avr/include/avr32/arch.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/* This file should never be included directly but, rather,
+ * only indirectly through nuttx/arch.h
+ */
+
+#ifndef __ARCH_AVR_INCLUDE_AVR32_ARCH_H
+#define __ARCH_AVR_INCLUDE_AVR32_ARCH_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Inline functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: avr_getsp
+ ****************************************************************************/
+
+static inline uint32_t avr_getsp(void)
+{
+  uint32_t retval;
+  __asm__ __volatile__
+    (
+      "mov\t%0,sp\n\t"
+      : "=r" (retval)
+      :
+    );
+  return retval;

Review comment:
       Missing blank line.  Is a 32-bit value always used to represent the stack pointer?




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