/**************************************************************************** * examples/nsh/dbg_proccmds.c * * Copyright (C) 2008 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include "nsh.h" /**************************************************************************** * Definitions ****************************************************************************/ /**************************************************************************** * Private Types ****************************************************************************/ struct dbgmem_s { boolean dm_write; /* TRUE: perfrom write operation */ void *dm_addr; /* Address to access */ uint32 dm_value; /* Value to write */ unsigned int dm_count; /* The number of bytes to access */ }; /**************************************************************************** * Private Function Prototypes ****************************************************************************/ /**************************************************************************** * Private Data ****************************************************************************/ /**************************************************************************** * Public Data ****************************************************************************/ /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: mem_parse ****************************************************************************/ int mem_parse(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv, struct dbgmem_s *mem) { char *pcvalue = strchr(argv[1], '='); unsigned long lvalue = 0; /* Check if we are writing a value */ if (pcvalue) { *pcvalue = '\0'; pcvalue++; lvalue = (unsigned long)strtol(pcvalue, NULL, 16); if (lvalue > 0xffffffff) { return -EINVAL; } mem->dm_write = TRUE; mem->dm_value = (uint32)lvalue; } else { mem->dm_write = FALSE; mem->dm_value = 0; } /* Get the address to be accessed */ mem->dm_addr = (void*)strtol(argv[1], NULL, 16); /* Get the number of bytes to access */ if (argc > 2) { mem->dm_count = (unsigned int)strtol(argv[2], NULL, 16); } else { mem->dm_count = 1; } return OK; } /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: cmd_mb ****************************************************************************/ int cmd_mb(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) { struct dbgmem_s mem; volatile ubyte *ptr; int ret; int i; ret = mem_parse(vtbl, argc, argv, &mem); if (ret == 0) { /* Loop for the number of requested bytes */ for (i = 0, ptr = (volatile ubyte*)mem.dm_addr; i < mem.dm_count; i++, ptr++) { /* Print the value at the address */ nsh_output(vtbl, " %p = 0x%02x", ptr, *ptr); /* Are we supposed to write a value to this address? */ if (mem.dm_write) { /* Yes, was the supplied value within range? */ if (mem.dm_value > 0x000000ff) { nsh_output(vtbl, g_fmtargrange, argv[0]); return ERROR; } /* Write the value and re-read the address so that we print its * current value (if the address is a process address, then the * value read might not necessarily be the value written). */ *ptr = (ubyte)mem.dm_value; nsh_output(vtbl, " -> 0x%02x", *ptr); } /* Make sure we end it with a newline */ nsh_output(vtbl, "\n", *ptr); } } return ret; } /**************************************************************************** * Name: cmd_mh ****************************************************************************/ int cmd_mh(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) { struct dbgmem_s mem; volatile uint16 *ptr; int ret; int i; ret = mem_parse(vtbl, argc, argv, &mem); if (ret == 0) { /* Loop for the number of requested bytes */ for (i = 0, ptr = (volatile uint16*)mem.dm_addr; i < mem.dm_count; i += 2, ptr++) { /* Print the value at the address */ nsh_output(vtbl, " %p = 0x%04x", ptr, *ptr); /* Are we supposed to write a value to this address? */ if (mem.dm_write) { /* Yes, was the supplied value within range? */ if (mem.dm_value > 0x0000ffff) { nsh_output(vtbl, g_fmtargrange, argv[0]); return ERROR; } /* Write the value and re-read the address so that we print its * current value (if the address is a process address, then the * value read might not necessarily be the value written). */ *ptr = (uint16)mem.dm_value; nsh_output(vtbl, " -> 0x%04x", *ptr); } /* Make sure we end it with a newline */ nsh_output(vtbl, "\n", *ptr); } } return ret; } /**************************************************************************** * Name: cmd_mw ****************************************************************************/ int cmd_mw(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) { struct dbgmem_s mem; volatile uint32 *ptr; int ret; int i; ret = mem_parse(vtbl, argc, argv, &mem); if (ret == 0) { /* Loop for the number of requested bytes */ for (i = 0, ptr = (volatile uint32*)mem.dm_addr; i < mem.dm_count; i += 4, ptr++) { /* Print the value at the address */ nsh_output(vtbl, " %p = 0x%08x", ptr, *ptr); /* Are we supposed to write a value to this address? */ if (mem.dm_write) { /* Write the value and re-read the address so that we print its * current value (if the address is a process address, then the * value read might not necessarily be the value written). */ *ptr = mem.dm_value; nsh_output(vtbl, " -> 0x%08x", *ptr); } /* Make sure we end it with a newline */ nsh_output(vtbl, "\n", *ptr); } } return ret; } /**************************************************************************** * Name: cmd_mem ****************************************************************************/ int cmd_mem(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) { struct mallinfo mem; #ifdef CONFIG_CAN_PASS_STRUCTS mem = mallinfo(); #else (void)mallinfo(&mem); #endif nsh_output(vtbl, " arena: %8x\n", mem.arena); nsh_output(vtbl, " ordblks: %8d\n", mem.ordblks); nsh_output(vtbl, " mxordblk: %8x\n", mem.mxordblk); nsh_output(vtbl, " uordblks: %8x\n", mem.uordblks); nsh_output(vtbl, " fordblks: %8x\n", mem.fordblks); return OK; }