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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 "cons.h"
  44. #include "include/arch.h"
  45. #include "cmd.h"
  46.  
  47. static void cmd_break(int argc, char *argv[]);
  48. static void cmd_ct(int argc, char *argv[]);
  49. static void cmd_go(int argc, char *argv[]);
  50. void        cmd_help(int argc, char *argv[]);
  51. static void cmd_pwt(int argc, char *argv[]);
  52. static void cmd_read(int argc, char *argv[]);
  53. static void cmd_step(int argc, char *argv[]);
  54. static void cmd_threads(int argc, char *argv[]);
  55. static void cmd_quit(int argc, char *argv[]);
  56.  
  57. volatile bool quit = false;
  58.  
  59. cmd_desc_t cmd_table[] = {
  60.     { 1,    "break",    cmd_break },
  61.     { 1,    "ct",       cmd_ct },
  62.     { 0,    "go",       cmd_go },
  63.     { 0,    "help",     cmd_help },
  64.     { 0,    "pwt",      cmd_pwt },
  65.     { 2,    "read",     cmd_read },
  66.     { 0,    "threads",  cmd_threads },
  67.     { 0,    "quit",     cmd_quit },
  68.     { -1,   NULL,       NULL }
  69. };
  70.  
  71. static void cmd_break(int argc, char *argv[])
  72. {
  73.     uintptr_t addr;
  74.  
  75.     (void)argc;
  76.     addr = strtoul(argv[1], NULL, 0);
  77.  
  78.     cons_printf("You requested a breakpoint at 0x%x\n", addr);
  79.     arch_breakpoint_add(addr);
  80. }
  81.  
  82. static void cmd_ct(int argc, char *argv[])
  83. {
  84.     int i;
  85.     int tid;
  86.  
  87.     (void)argc;
  88.     tid = strtoul(argv[1], NULL, 0);
  89.  
  90.     for (i = 0; i < n_threads; ++i) {
  91.         if (thread_id[i] == tid) break;
  92.     }
  93.    
  94.     if (thread_id[i] == tid) {
  95.         cons_printf("changed working thread to: %d [hash 0x%x]\n",
  96.             thread_id[cwt], thread_hash[cwt]);
  97.     } else {
  98.         cons_printf("no such thread\n");
  99.     }
  100. }
  101.  
  102.  
  103. void cmd_go(int argc, char *argv[])
  104. {
  105.     fcv_broadcast(&go_cv);
  106. }
  107.  
  108. void cmd_help(int argc, char *argv[])
  109. {
  110.     int i;
  111.  
  112.     (void)argc; (void)argv;
  113.     i = 0;
  114.     while (cmd_table[i].name != NULL) {
  115.         cons_printf("%s\n", cmd_table[i].name);
  116.         ++i;
  117.     }
  118. }
  119.  
  120. #define BYTES_PER_LINE 16
  121.  
  122. static void cmd_read(int argc, char *argv[])
  123. {
  124.     uintptr_t addr;
  125.     size_t length;
  126.     uint8_t buf[BYTES_PER_LINE];
  127.     int to_read, i;
  128.     int rc;
  129.  
  130.     (void)argc;
  131.     addr = strtoul(argv[1], NULL, 0);
  132.     length = strtoul(argv[2], NULL, 0);
  133.  
  134.     while (length > 0) {
  135.         to_read = length < BYTES_PER_LINE ? length : BYTES_PER_LINE;
  136.  
  137.         rc = udebug_mem_read(app_phone, buf, addr, to_read);
  138.         if (rc < 0) {
  139.             cons_printf("error %d\n", rc);
  140.             return;
  141.         }
  142.  
  143.         cons_printf("0x%x:", addr);
  144.         for (i = 0; i < to_read; ++i) {
  145.             cons_printf(" %02x", buf[i]);
  146.         }
  147.         for (i = to_read; i < BYTES_PER_LINE; ++i) {
  148.             cons_printf("   ");
  149.         }
  150.  
  151.         putchar ('\t');
  152.  
  153.         for (i = 0; i < to_read; ++i) {
  154.             if (buf[i] >= 32 && buf[i] < 127)
  155.                 putchar(buf[i]);
  156.             else
  157.                 putchar('.');
  158.         }
  159.         cons_printf("\n");
  160.  
  161.         addr += to_read;
  162.         length -= to_read;
  163.     }
  164. }
  165.  
  166. void cmd_step(int argc, char *argv[])
  167. {
  168.     fcv_broadcast(&go_cv);
  169. }
  170.  
  171. void cmd_pwt(int argc, char *argv[])
  172. {
  173.     (void)argc; (void)argv;
  174.     cons_printf("working thread: %d [hash 0x%x]\n", thread_id[cwt],
  175.         thread_hash[cwt]);
  176. }
  177.  
  178. void cmd_threads(int argc, char *argv[])
  179. {
  180.     int i;
  181.  
  182.     (void)argc; (void)argv;
  183.     for (i = 0; i < n_threads; ++i) {
  184.         cons_printf("%d [hash 0x%x]\n", thread_id[i], thread_hash[i]);
  185.     }
  186. }
  187.  
  188.  
  189. static void cmd_quit(int argc, char *argv[])
  190. {
  191.     (void)argc; (void)argv;
  192.     quit = true;
  193. }
  194.  
  195. /** @}
  196.  */
  197.