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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_go(int argc, char *argv[]);
  48. void        cmd_help(int argc, char *argv[]);
  49. static void cmd_read(int argc, char *argv[]);
  50. static void cmd_quit(int argc, char *argv[]);
  51.  
  52. volatile bool quit = false;
  53.  
  54. cmd_desc_t cmd_table[] = {
  55.     { 1,    "break",    cmd_break },
  56.     { 0,    "go",       cmd_go },
  57.     { 0,    "help",     cmd_help },
  58.     { 2,    "read",     cmd_read },
  59.     { 0,    "quit",     cmd_quit },
  60.     { -1,   NULL,       NULL }
  61. };
  62.  
  63. static void cmd_break(int argc, char *argv[])
  64. {
  65.     uintptr_t addr;
  66.  
  67.     (void)argc;
  68.     addr = strtoul(argv[1], NULL, 0);
  69.  
  70.     printf("You requested a breakpoint at 0x%x\n", addr);
  71.     arch_breakpoint_add(addr);
  72. }
  73.  
  74. void cmd_go(int argc, char *argv[])
  75. {
  76.     fcv_broadcast(&go_cv);
  77. }
  78.  
  79. void cmd_help(int argc, char *argv[])
  80. {
  81.     int i;
  82.  
  83.     (void)argc; (void)argv;
  84.     i = 0;
  85.     while (cmd_table[i].name != NULL) {
  86.         printf("%s\n", cmd_table[i].name);
  87.         ++i;
  88.     }
  89. }
  90.  
  91. #define BYTES_PER_LINE 16
  92.  
  93. static void cmd_read(int argc, char *argv[])
  94. {
  95.     uintptr_t addr;
  96.     size_t length;
  97.     uint8_t buf[BYTES_PER_LINE];
  98.     int to_read, i;
  99.     int rc;
  100.  
  101.     (void)argc;
  102.     addr = strtoul(argv[1], NULL, 0);
  103.     length = strtoul(argv[2], NULL, 0);
  104.  
  105.     while (length > 0) {
  106.         to_read = length < BYTES_PER_LINE ? length : BYTES_PER_LINE;
  107.  
  108.         rc = udebug_mem_read(app_phone, buf, addr, to_read);
  109.         if (rc < 0) {
  110.             printf("error %d\n", rc);
  111.             return;
  112.         }
  113.  
  114.         printf("0x%x:", addr);
  115.         for (i = 0; i < to_read; ++i) {
  116.             printf(" %02x", buf[i]);
  117.         }
  118.         for (i = to_read; i < BYTES_PER_LINE; ++i) {
  119.             printf("   ");
  120.         }
  121.  
  122.         putchar ('\t');
  123.  
  124.         for (i = 0; i < to_read; ++i) {
  125.             if (buf[i] >= 32 && buf[i] < 127)
  126.                 putchar(buf[i]);
  127.             else
  128.                 putchar('.');
  129.         }
  130.         printf("\n");
  131.  
  132.         addr += to_read;
  133.         length -= to_read;
  134.     }
  135. }
  136.  
  137.  
  138. static void cmd_quit(int argc, char *argv[])
  139. {
  140.     (void)argc; (void)argv;
  141.     quit = true;
  142. }
  143.  
  144. /** @}
  145.  */
  146.