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415 lines
12 KiB
415 lines
12 KiB
/**************************************************************************** |
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* apps/nshlib/dbg_dbgcmds.c |
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* |
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* Copyright (C) 2008-2009, 2011-2012 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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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 <stdlib.h> |
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#include <string.h> |
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#include <errno.h> |
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#if CONFIG_NFILE_DESCRIPTORS > 0 |
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# include <fcntl.h> |
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#endif |
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#include "nsh.h" |
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#include "nsh_console.h" |
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/**************************************************************************** |
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* Definitions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Types |
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****************************************************************************/ |
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struct dbgmem_s |
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{ |
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bool dm_write; /* true: perfrom write operation */ |
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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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/**************************************************************************** |
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* Private Function Prototypes |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Data |
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****************************************************************************/ |
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/**************************************************************************** |
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* Public Data |
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****************************************************************************/ |
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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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int mem_parse(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv, |
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struct dbgmem_s *mem) |
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{ |
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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 = (unsigned long)strtol(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 = (void*)((uintptr_t)strtol(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)strtol(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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/**************************************************************************** |
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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, char **argv) |
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{ |
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struct dbgmem_s mem; |
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volatile uint8_t *ptr; |
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int ret; |
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int i; |
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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; 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_output(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", *ptr); |
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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, char **argv) |
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{ |
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struct dbgmem_s mem; |
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volatile uint16_t *ptr; |
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int ret; |
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int i; |
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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; i < mem.dm_count; 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_output(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", *ptr); |
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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, char **argv) |
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{ |
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struct dbgmem_s mem; |
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volatile uint32_t *ptr; |
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int ret; |
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int i; |
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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; 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%08x", 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%08x", *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", *ptr); |
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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, const char *msg, |
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const uint8_t *buffer, ssize_t nbytes) |
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{ |
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char line[128]; |
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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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if (i + j < nbytes) |
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{ |
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sprintf(&line[strlen(line)], "%02x ", buffer[i+j] ); |
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} |
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else |
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{ |
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strcpy(&line[strlen(line)], " "); |
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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", 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, char **argv) |
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{ |
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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 = (char*)((uintptr_t)strtol(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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#if CONFIG_NFILE_DESCRIPTORS > 0 |
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#ifndef CONFIG_NSH_DISABLE_HEXDUMP |
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int cmd_hexdump(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) |
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{ |
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uint8_t buffer[IOBUFFERSIZE]; |
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char msg[32]; |
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int position; |
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int fd; |
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int ret = OK; |
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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_output(vtbl, g_fmtcmdfailed, "hexdump", "open", NSH_ERRNO); |
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return ERROR; |
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} |
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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_output(vtbl, g_fmtcmdfailed, "hexdump", "read", 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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snprintf(msg, sizeof(msg), "%s at %08x", argv[1], position); |
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nsh_dumpbuffer(vtbl, msg, buffer, nbytesread); |
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position += nbytesread; |
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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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(void)close(fd); |
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return ret; |
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} |
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#endif |
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#endif
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