arch/armv[7|8]-m: Compare all FPU registers in up_fpucmp

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

arch/arm/src/armv7-a/arm_fpucmp.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * arch/arm/src/common/arm_fpucmp.c
+ * arch/arm/src/armv7-a/arm_fpucmp.c
  *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
@@ -53,7 +53,6 @@ bool up_fpucmp(const void *saveregs1, const void *saveregs2)
   const uint32_t *regs1 = saveregs1;
   const uint32_t *regs2 = saveregs2;
 
-  return memcmp(&regs1[REG_S0],
+  return memcmp(&regs1[REG_S0], &regs2[REG_S0], 4 * FPU_CONTEXT_REGS) == 0;
-                &regs2[REG_S0], (4 * FPU_CONTEXT_REGS)) == 0;
 }
 #endif /* CONFIG_ARCH_FPU */

arch/arm/src/armv7-m/arm_fpucmp.c

@@ -0,0 +1,59 @@
+/****************************************************************************
+ * arch/arm/src/armv7-m/arm_fpucmp.c
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <string.h>
+#include <nuttx/irq.h>
+
+#include "arm_internal.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_FPU
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_fpucmp
+ *
+ * Description:
+ *   compare FPU areas from thread context
+ *
+ ****************************************************************************/
+
+bool up_fpucmp(const void *saveregs1, const void *saveregs2)
+{
+  const uint32_t *regs1 = saveregs1;
+  const uint32_t *regs2 = saveregs2;
+
+  return memcmp(&regs1[REG_S0], &regs2[REG_S0], 4 * HW_FPU_REGS) == 0 &&
+         memcmp(&regs1[REG_S16], &regs2[REG_S16], 4 * SW_FPU_REGS) == 0;
+}
+#endif /* CONFIG_ARCH_FPU */

arch/arm/src/armv7-r/arm_fpucmp.c

@@ -0,0 +1,58 @@
+/****************************************************************************
+ * arch/arm/src/armv7-r/arm_fpucmp.c
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <string.h>
+#include <nuttx/irq.h>
+
+#include "arm_internal.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_FPU
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_fpucmp
+ *
+ * Description:
+ *   compare FPU areas from thread context
+ *
+ ****************************************************************************/
+
+bool up_fpucmp(const void *saveregs1, const void *saveregs2)
+{
+  const uint32_t *regs1 = saveregs1;
+  const uint32_t *regs2 = saveregs2;
+
+  return memcmp(&regs1[REG_S0], &regs2[REG_S0], 4 * FPU_CONTEXT_REGS) == 0;
+}
+#endif /* CONFIG_ARCH_FPU */

arch/arm/src/armv8-m/arm_fpucmp.c

@@ -0,0 +1,59 @@
+/****************************************************************************
+ * arch/arm/src/armv8-m/arm_fpucmp.c
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <string.h>
+#include <nuttx/irq.h>
+
+#include "arm_internal.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_FPU
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_fpucmp
+ *
+ * Description:
+ *   compare FPU areas from thread context
+ *
+ ****************************************************************************/
+
+bool up_fpucmp(const void *saveregs1, const void *saveregs2)
+{
+  const uint32_t *regs1 = saveregs1;
+  const uint32_t *regs2 = saveregs2;
+
+  return memcmp(&regs1[REG_S0], &regs2[REG_S0], 4 * HW_FPU_REGS) == 0 &&
+         memcmp(&regs1[REG_S16], &regs2[REG_S16], 4 * SW_FPU_REGS) == 0;
+}
+#endif /* CONFIG_ARCH_FPU */