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

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao 2022-04-17 01:53:21 +08:00 committed by Petro Karashchenko
parent d80c2d7419
commit 96fa8be5f5
4 changed files with 178 additions and 3 deletions

View File

@ -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],
&regs2[REG_S0], (4 * FPU_CONTEXT_REGS)) == 0;
return memcmp(&regs1[REG_S0], &regs2[REG_S0], 4 * FPU_CONTEXT_REGS) == 0;
}
#endif /* CONFIG_ARCH_FPU */

View File

@ -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 */

View File

@ -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 */

View File

@ -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 */