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  1. /*
  2.  * Copyright (c) 2008 Jiri Svoboda
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup debug
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <stdio.h>
  36. #include <stdlib.h>
  37. #include <string.h>
  38. #include <bool.h>
  39. #include <udebug.h>
  40. #include <sys/types.h>
  41.  
  42. #include "main.h"
  43. #include "cmd.h"
  44.  
  45. static void cmd_break(int argc, char *argv[]);
  46. void        cmd_help(int argc, char *argv[]);
  47. static void cmd_read(int argc, char *argv[]);
  48. static void cmd_quit(int argc, char *argv[]);
  49.  
  50. volatile bool quit = false;
  51.  
  52. cmd_desc_t cmd_table[] = {
  53.     { 1,    "break",    cmd_break },
  54.     { 0,    "help",     cmd_help },
  55.     { 2,    "read",     cmd_read },
  56.     { 0,    "quit",     cmd_quit },
  57.     { -1,   NULL,       NULL }
  58. };
  59.  
  60. static void cmd_break(int argc, char *argv[])
  61. {
  62.     uintptr_t addr;
  63.     char brkp[1];
  64.     int rc;
  65.  
  66.     (void)argc;
  67.     addr = strtoul(argv[1], NULL, 0);
  68.  
  69.     printf("You requested a breakpoint at 0x%x\n", addr);
  70.     brkp[0] = 0xcc;
  71.     rc = udebug_mem_write(app_phone, brkp, addr, 1);
  72.     printf("udebug_mem_write() -> %d\n", rc);
  73. }
  74.  
  75. void cmd_help(int argc, char *argv[])
  76. {
  77.     int i;
  78.  
  79.     (void)argc; (void)argv;
  80.     i = 0;
  81.     while (cmd_table[i].name != NULL) {
  82.         printf("%s\n", cmd_table[i].name);
  83.         ++i;
  84.     }
  85. }
  86.  
  87. #define BYTES_PER_LINE 16
  88.  
  89. static void cmd_read(int argc, char *argv[])
  90. {
  91.     uintptr_t addr;
  92.     size_t length;
  93.     uint8_t buf[BYTES_PER_LINE];
  94.     int to_read, i;
  95.     int rc;
  96.  
  97.     (void)argc;
  98.     addr = strtoul(argv[1], NULL, 0);
  99.     length = strtoul(argv[2], NULL, 0);
  100.  
  101.     while (length > 0) {
  102.         to_read = length < BYTES_PER_LINE ? length : BYTES_PER_LINE;
  103.  
  104.         rc = udebug_mem_read(app_phone, buf, addr, to_read);
  105.         if (rc < 0) {
  106.             printf("error %d\n", rc);
  107.             return;
  108.         }
  109.  
  110.         printf("0x%x:", addr);
  111.         for (i = 0; i < to_read; ++i) {
  112.             printf(" %02x", buf[i]);
  113.         }
  114.         for (i = to_read; i < BYTES_PER_LINE; ++i) {
  115.             printf("   ");
  116.         }
  117.  
  118.         putchar ('\t');
  119.  
  120.         for (i = 0; i < to_read; ++i) {
  121.             if (buf[i] >= 32 && buf[i] < 127)
  122.                 putchar(buf[i]);
  123.             else
  124.                 putchar('.');
  125.         }
  126.         printf("\n");
  127.  
  128.         addr += to_read;
  129.         length -= to_read;
  130.     }
  131. }
  132.  
  133.  
  134. static void cmd_quit(int argc, char *argv[])
  135. {
  136.     (void)argc; (void)argv;
  137.     quit = true;
  138. }
  139.  
  140. /** @}
  141.  */
  142.