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riscv/riscv_copystate.c: Remove riscv_copystate.c as it is not used anymore

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I keep getting confused by this function until I remember again that it is
not used any more. Let's just get rid of it.
This commit is contained in:
Ville Juven 2023-05-15 12:13:17 +03:00 committed by Xiang Xiao
parent ecbf10b470
commit a940ea0134
3 changed files with 1 additions and 75 deletions
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2
arch/risc-v/src/common/Make.defs
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@ -28,7 +28,7 @@ CMN_ASRCS += riscv_saveusercontext.S
# Specify C code within the common directory to be included
CMN_CSRCS += riscv_initialize.c riscv_swint.c riscv_mtimer.c
CMN_CSRCS += riscv_allocateheap.c riscv_createstack.c riscv_copystate.c
CMN_CSRCS += riscv_allocateheap.c riscv_createstack.c
CMN_CSRCS += riscv_cpuidlestack.c riscv_doirq.c riscv_exit.c riscv_exception.c
CMN_CSRCS += riscv_getnewintctx.c riscv_getintstack.c riscv_initialstate.c
CMN_CSRCS += riscv_idle.c riscv_modifyreg32.c riscv_nputs.c riscv_releasestack.c

72
arch/risc-v/src/common/riscv_copystate.c
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@ -1,72 +0,0 @@
/****************************************************************************
* arch/risc-v/src/common/riscv_copystate.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 <arch/irq.h>
#include "riscv_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: riscv_copystate
****************************************************************************/
/* A little faster than most memcpy's */
void riscv_copystate(uintptr_t *dest, uintptr_t *src)
{
int i;
/* In the RISC-V model, the state is copied from the stack to the TCB,
* but only a reference is passed to get the state from the TCB. So the
* following check avoids copying the TCB save area onto itself:
*/
if (src != dest)
{
/* save integer registers first */
for (i = 0; i < XCPTCONTEXT_REGS; i++)
{
*dest++ = *src++;
}
}
}

2
arch/risc-v/src/common/riscv_internal.h
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@ -195,8 +195,6 @@ void riscv_addregion(void);
void riscv_ack_irq(int irq);
void riscv_copystate(uintptr_t *dest, uintptr_t *src);
void riscv_sigdeliver(void);
int riscv_swint(int irq, void *context, void *arg);
uintptr_t riscv_get_newintctx(void);