359f66ad37
continue the change from https://github.com/apache/nuttx-apps/pull/1559 Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
509 lines
13 KiB
C
509 lines
13 KiB
C
/****************************************************************************
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* apps/nshlib/nsh_dbgcmds.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "nsh.h"
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#include "nsh_console.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#undef NSH_HAVE_MEMCMDS
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#if !defined(CONFIG_NSH_DISABLE_MB) || !defined(CONFIG_NSH_DISABLE_MH) || \
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!defined(CONFIG_NSH_DISABLE_MW)
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# define NSH_HAVE_MEMCMDS 1
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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#ifdef NSH_HAVE_MEMCMDS
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struct dbgmem_s
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{
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bool dm_write; /* true: perform write operation */
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FAR void *dm_addr; /* Address to access */
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uint32_t dm_value; /* Value to write */
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unsigned int dm_count; /* The number of bytes to access */
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};
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: mem_parse
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****************************************************************************/
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#ifdef NSH_HAVE_MEMCMDS
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static int mem_parse(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv,
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FAR struct dbgmem_s *mem)
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{
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UNUSED(vtbl);
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FAR char *pcvalue = strchr(argv[1], '=');
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unsigned long lvalue = 0;
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/* Check if we are writing a value */
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if (pcvalue)
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{
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*pcvalue = '\0';
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pcvalue++;
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lvalue = strtoul(pcvalue, NULL, 16);
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if (lvalue > 0xffffffffl)
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{
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return -EINVAL;
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}
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mem->dm_write = true;
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mem->dm_value = (uint32_t)lvalue;
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}
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else
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{
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mem->dm_write = false;
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mem->dm_value = 0;
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}
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/* Get the address to be accessed */
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mem->dm_addr = (FAR void *)((uintptr_t)strtoul(argv[1], NULL, 16));
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/* Get the number of bytes to access */
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if (argc > 2)
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{
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mem->dm_count = (unsigned int)strtoul(argv[2], NULL, 16);
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}
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else
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{
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mem->dm_count = 1;
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}
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return OK;
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: cmd_mb
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_MB
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int cmd_mb(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
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{
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struct dbgmem_s mem;
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FAR volatile uint8_t *ptr;
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unsigned int i;
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int ret;
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ret = mem_parse(vtbl, argc, argv, &mem);
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if (ret == 0)
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{
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/* Loop for the number of requested bytes */
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for (i = 0, ptr = (volatile uint8_t *)mem.dm_addr; i < mem.dm_count;
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i++, ptr++)
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{
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/* Print the value at the address */
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nsh_output(vtbl, " %p = 0x%02x", ptr, *ptr);
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/* Are we supposed to write a value to this address? */
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if (mem.dm_write)
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{
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/* Yes, was the supplied value within range? */
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if (mem.dm_value > 0x000000ff)
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{
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nsh_error(vtbl, g_fmtargrange, argv[0]);
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return ERROR;
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}
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/* Write the value and re-read the address so that we print its
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* current value (if the address is a process address, then the
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* value read might not necessarily be the value written).
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*/
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*ptr = (uint8_t)mem.dm_value;
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nsh_output(vtbl, " -> 0x%02x", *ptr);
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}
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/* Make sure we end it with a newline */
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nsh_output(vtbl, "\n");
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}
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}
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return ret;
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}
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#endif
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/****************************************************************************
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* Name: cmd_mh
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_MH
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int cmd_mh(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
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{
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struct dbgmem_s mem;
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FAR volatile uint16_t *ptr;
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unsigned int i;
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int ret;
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ret = mem_parse(vtbl, argc, argv, &mem);
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if (ret == 0)
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{
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/* Loop for the number of requested bytes */
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for (i = 0, ptr = (volatile uint16_t *)mem.dm_addr;
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i < mem.dm_count;
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i += 2, ptr++)
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{
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/* Print the value at the address */
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nsh_output(vtbl, " %p = 0x%04x", ptr, *ptr);
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/* Are we supposed to write a value to this address? */
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if (mem.dm_write)
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{
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/* Yes, was the supplied value within range? */
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if (mem.dm_value > 0x0000ffff)
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{
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nsh_error(vtbl, g_fmtargrange, argv[0]);
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return ERROR;
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}
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/* Write the value and re-read the address so that we print its
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* current value (if the address is a process address, then the
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* value read might not necessarily be the value written).
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*/
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*ptr = (uint16_t)mem.dm_value;
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nsh_output(vtbl, " -> 0x%04x", *ptr);
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}
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/* Make sure we end it with a newline */
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nsh_output(vtbl, "\n");
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}
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}
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return ret;
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}
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#endif
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/****************************************************************************
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* Name: cmd_mw
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_MW
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int cmd_mw(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
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{
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struct dbgmem_s mem;
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FAR volatile uint32_t *ptr;
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unsigned int i;
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int ret;
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ret = mem_parse(vtbl, argc, argv, &mem);
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if (ret == 0)
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{
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/* Loop for the number of requested bytes */
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for (i = 0, ptr = (volatile uint32_t *)mem.dm_addr; i < mem.dm_count;
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i += 4, ptr++)
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{
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/* Print the value at the address */
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nsh_output(vtbl, " %p = 0x%08" PRIx32, ptr, *ptr);
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/* Are we supposed to write a value to this address? */
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if (mem.dm_write)
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{
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/* Write the value and re-read the address so that we print its
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* current value (if the address is a process address, then the
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* value read might not necessarily be the value written).
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*/
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*ptr = mem.dm_value;
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nsh_output(vtbl, " -> 0x%08" PRIx32, *ptr);
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}
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/* Make sure we end it with a newline */
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nsh_output(vtbl, "\n");
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}
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}
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return ret;
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}
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#endif
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/****************************************************************************
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* Name: nsh_dumpbuffer
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****************************************************************************/
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void nsh_dumpbuffer(FAR struct nsh_vtbl_s *vtbl, FAR const char *msg,
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FAR const uint8_t *buffer, ssize_t nbytes)
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{
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char line[128];
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size_t size;
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int ch;
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int i;
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int j;
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nsh_output(vtbl, "%s:\n", msg);
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for (i = 0; i < nbytes; i += 16)
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{
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sprintf(line, "%04x: ", i);
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for (j = 0; j < 16; j++)
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{
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size = strlen(line);
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if (i + j < nbytes)
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{
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sprintf(&line[size], "%02x ", buffer[i + j]);
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}
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else
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{
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strlcpy(&line[size], " ", sizeof(line) - size);
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}
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}
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for (j = 0; j < 16; j++)
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{
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if (i + j < nbytes)
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{
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ch = buffer[i + j];
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sprintf(&line[strlen(line)], "%c",
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ch >= 0x20 && ch <= 0x7e ? ch : '.');
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}
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}
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nsh_output(vtbl, "%s\n", line);
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}
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}
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/****************************************************************************
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* Name: cmd_xd, hex dump of memory
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_XD
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int cmd_xd(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
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{
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UNUSED(argc);
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FAR char *addr;
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FAR char *endptr;
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int nbytes;
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addr = (FAR char *)((uintptr_t)strtoul(argv[1], &endptr, 16));
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if (argv[0][0] == '\0' || *endptr != '\0')
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{
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return ERROR;
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}
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nbytes = (int)strtol(argv[2], &endptr, 0);
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if (argv[0][0] == '\0' || *endptr != '\0' || nbytes < 0)
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{
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return ERROR;
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}
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nsh_dumpbuffer(vtbl, "Hex dump", (uint8_t *)addr, nbytes);
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return OK;
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}
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#endif
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/****************************************************************************
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* Name: cmd_hexdump, hex dump of files
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_HEXDUMP
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int cmd_hexdump(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
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{
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FAR uint8_t *buffer;
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char msg[32];
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off_t position;
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int fd;
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int ret = OK;
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#ifdef CONFIG_NSH_CMDOPT_HEXDUMP
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off_t skip = 0;
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off_t count = 0xfffffff;
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off_t dumpbytes;
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int x;
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#endif
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/* Open the file for reading */
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fd = open(argv[1], O_RDONLY);
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if (fd < 0)
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{
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nsh_error(vtbl, g_fmtcmdfailed, "hexdump", "open", NSH_ERRNO);
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return ERROR;
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}
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buffer = (FAR uint8_t *)malloc(IOBUFFERSIZE);
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if (buffer == NULL)
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{
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close(fd);
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nsh_error(vtbl, g_fmtcmdfailed, "hexdump", "malloc", NSH_ERRNO);
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return ERROR;
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}
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#ifdef CONFIG_NSH_CMDOPT_HEXDUMP
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for (x = 2; x < argc; x++)
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{
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if (strncmp(argv[x], "skip=", 5) == 0)
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{
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skip = atoi(&argv[x][5]);
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}
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else if (strncmp(argv[x], "count=", 6) == 0)
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{
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count = atoi(&argv[x][6]);
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}
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}
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#endif
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position = 0;
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for (; ; )
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{
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int nbytesread = read(fd, buffer, IOBUFFERSIZE);
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/* Check for read errors */
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if (nbytesread < 0)
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{
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int errval = errno;
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nsh_error(vtbl, g_fmtcmdfailed, "hexdump", "read",
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NSH_ERRNO_OF(errval));
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ret = ERROR;
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break;
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}
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else if (nbytesread > 0)
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{
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#ifdef CONFIG_NSH_CMDOPT_HEXDUMP
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if (position < skip)
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{
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/* Skip bytes until we reach the skip point */
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position += nbytesread;
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if (position > skip)
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{
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dumpbytes = position - skip;
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if (dumpbytes > count)
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{
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dumpbytes = count;
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}
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snprintf(msg, sizeof(msg), "%s at %08jx", argv[1],
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(uintmax_t)skip);
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nsh_dumpbuffer(vtbl, msg,
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&buffer[nbytesread - (position - skip)],
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dumpbytes);
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if (count > dumpbytes)
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{
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count -= dumpbytes;
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}
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else
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{
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break;
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}
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}
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/* Don't print if we are in skip mode */
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continue;
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}
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/* Limit dumpbuffer to count if less than a full buffer needed */
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if (nbytesread > count)
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{
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nbytesread = count;
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}
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#endif
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snprintf(msg, sizeof(msg), "%s at %08jx", argv[1],
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(uintmax_t)position);
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nsh_dumpbuffer(vtbl, msg, buffer, nbytesread);
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position += nbytesread;
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#ifdef CONFIG_NSH_CMDOPT_HEXDUMP
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if (count > nbytesread)
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{
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count -= nbytesread;
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}
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else
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{
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break;
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}
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#endif
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}
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else
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{
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break; /* EOF */
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}
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}
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close(fd);
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free(buffer);
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return ret;
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}
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#endif
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/****************************************************************************
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* Name: cmd_irqinfo
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****************************************************************************/
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#ifdef HAVE_IRQINFO
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int cmd_irqinfo(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
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{
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UNUSED(argc);
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return nsh_catfile(vtbl, argv[0], CONFIG_NSH_PROC_MOUNTPOINT "/irqs");
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}
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#endif
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