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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 "include/arch.h"
  44. #include "cmd.h"
  45.  
  46. static void cmd_break(int argc, char *argv[]);
  47. void        cmd_help(int argc, char *argv[]);
  48. static void cmd_read(int argc, char *argv[]);
  49. static void cmd_quit(int argc, char *argv[]);
  50.  
  51. volatile bool quit = false;
  52.  
  53. cmd_desc_t cmd_table[] = {
  54.     { 1,    "break",    cmd_break },
  55.     { 0,    "help",     cmd_help },
  56.     { 2,    "read",     cmd_read },
  57.     { 0,    "quit",     cmd_quit },
  58.     { -1,   NULL,       NULL }
  59. };
  60.  
  61. static void cmd_break(int argc, char *argv[])
  62. {
  63.     uintptr_t addr;
  64.  
  65.     (void)argc;
  66.     addr = strtoul(argv[1], NULL, 0);
  67.  
  68.     printf("You requested a breakpoint at 0x%x\n", addr);
  69.     arch_breakpoint_add(addr);
  70. }
  71.  
  72. void cmd_help(int argc, char *argv[])
  73. {
  74.     int i;
  75.  
  76.     (void)argc; (void)argv;
  77.     i = 0;
  78.     while (cmd_table[i].name != NULL) {
  79.         printf("%s\n", cmd_table[i].name);
  80.         ++i;
  81.     }
  82. }
  83.  
  84. #define BYTES_PER_LINE 16
  85.  
  86. static void cmd_read(int argc, char *argv[])
  87. {
  88.     uintptr_t addr;
  89.     size_t length;
  90.     uint8_t buf[BYTES_PER_LINE];
  91.     int to_read, i;
  92.     int rc;
  93.  
  94.     (void)argc;
  95.     addr = strtoul(argv[1], NULL, 0);
  96.     length = strtoul(argv[2], NULL, 0);
  97.  
  98.     while (length > 0) {
  99.         to_read = length < BYTES_PER_LINE ? length : BYTES_PER_LINE;
  100.  
  101.         rc = udebug_mem_read(app_phone, buf, addr, to_read);
  102.         if (rc < 0) {
  103.             printf("error %d\n", rc);
  104.             return;
  105.         }
  106.  
  107.         printf("0x%x:", addr);
  108.         for (i = 0; i < to_read; ++i) {
  109.             printf(" %02x", buf[i]);
  110.         }
  111.         for (i = to_read; i < BYTES_PER_LINE; ++i) {
  112.             printf("   ");
  113.         }
  114.  
  115.         putchar ('\t');
  116.  
  117.         for (i = 0; i < to_read; ++i) {
  118.             if (buf[i] >= 32 && buf[i] < 127)
  119.                 putchar(buf[i]);
  120.             else
  121.                 putchar('.');
  122.         }
  123.         printf("\n");
  124.  
  125.         addr += to_read;
  126.         length -= to_read;
  127.     }
  128. }
  129.  
  130.  
  131. static void cmd_quit(int argc, char *argv[])
  132. {
  133.     (void)argc; (void)argv;
  134.     quit = true;
  135. }
  136.  
  137. /** @}
  138.  */
  139.