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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 "dthread.h"
  45. #include "breakpoint.h"
  46. #include "include/arch.h"
  47. #include "cmd.h"
  48.  
  49. static void cmd_break(int argc, char *argv[]);
  50. static void cmd_ct(int argc, char *argv[]);
  51. static void cmd_dbreak(int argc, char *argv[]);
  52. static void cmd_go(int argc, char *argv[]);
  53. static void cmd_istep(int argc, char *argv[]);
  54. static void cmd_lbrk(int argc, char *argv[]);
  55. void        cmd_help(int argc, char *argv[]);
  56. static void cmd_memr(int argc, char *argv[]);
  57. static void cmd_pwt(int argc, char *argv[]);
  58. static void cmd_regs(int argc, char *argv[]);
  59. static void cmd_stop(int argc, char *argv[]);
  60. static void cmd_threads(int argc, char *argv[]);
  61. static void cmd_quit(int argc, char *argv[]);
  62.  
  63. volatile bool quit = false;
  64.  
  65. cmd_desc_t cmd_table[] = {
  66.     { 1,    "break",    cmd_break },
  67.     { 1,    "ct",       cmd_ct },
  68.     { 1,    "dbreak",   cmd_dbreak },
  69.     { 0,    "go",       cmd_go },
  70.     { 0,    "help",     cmd_help },
  71.     { 2,    "memr",     cmd_memr },
  72.     { 0,    "pwt",      cmd_pwt },
  73.     { 0,    "regs",     cmd_regs },
  74.     { 0 ,   "stop",     cmd_stop },
  75.     { 0,    "istep",    cmd_istep },
  76.     { 0,    "lbrk",     cmd_lbrk },
  77.     { 0,    "threads",  cmd_threads },
  78.     { 0,    "quit",     cmd_quit },
  79.     { -1,   NULL,       NULL }
  80. };
  81.  
  82. static void cmd_break(int argc, char *argv[])
  83. {
  84.     uintptr_t addr;
  85.  
  86.     (void)argc;
  87.     addr = strtoul(argv[1], NULL, 0);
  88.  
  89.     cons_printf("You requested a breakpoint at 0x%x\n", addr);
  90. //  arch_breakpoint_add(addr);
  91.     breakpoint_add(addr);
  92. }
  93.  
  94. static void cmd_ct(int argc, char *argv[])
  95. {
  96.     int tid;
  97.  
  98.     link_t *cur;
  99.     dthread_t *dt;
  100.  
  101.     (void)argc;
  102.     tid = strtoul(argv[1], NULL, 0);
  103.  
  104.     dt = NULL;
  105.     for (cur = dthreads.next; cur != &dthreads; cur = cur->next) {
  106.         dt = list_get_instance(cur, dthread_t, link);
  107.         if (dt->id == tid) break;
  108.     }
  109.    
  110.     if (dt->id == tid) {
  111.         cwt = dt;
  112.         cons_printf("changed working thread to: %d [hash 0x%x]\n",
  113.             cwt->id, cwt->hash);
  114.     } else {
  115.         cons_printf("no such thread\n");
  116.     }
  117. }
  118.  
  119. static void cmd_dbreak(int argc, char *argv[])
  120. {
  121.     int bid;
  122.  
  123.     (void)argc;
  124.     bid = strtoul(argv[1], NULL, 0);
  125.  
  126.     printf("remove breakpoint %d\n", bid);
  127.  
  128. //  arch_breakpoint_remove(bid);
  129.     breakpoint_remove(bid);
  130. }
  131.  
  132.  
  133. void cmd_go(int argc, char *argv[])
  134. {
  135.     link_t *cur;
  136.     dthread_t *dt;
  137.  
  138.     (void)argc; (void)argv;
  139.  
  140.     dt = NULL;
  141.     for (cur = dthreads.next; cur != &dthreads; cur = cur->next) {
  142.         dt = list_get_instance(cur, dthread_t, link);
  143.         arch_set_singlestep(dt, 0);
  144.         dthread_resume(dt);
  145.     }  
  146. }
  147.  
  148. void cmd_help(int argc, char *argv[])
  149. {
  150.     int i;
  151.  
  152.     (void)argc; (void)argv;
  153.     i = 0;
  154.     while (cmd_table[i].name != NULL) {
  155.         cons_printf("%s\n", cmd_table[i].name);
  156.         ++i;
  157.     }
  158. }
  159.  
  160. void cmd_istep(int argc, char *argv[])
  161. {
  162.     (void)argc; (void)argv;
  163.  
  164.     arch_set_singlestep(cwt, 1);
  165.     dthread_resume(cwt);
  166. }
  167.  
  168. static void cmd_lbrk(int argc, char *argv[])
  169. {
  170.     (void)argc; (void)argv;
  171.  
  172.     //arch_breakpoint_list();
  173.     breakpoint_list();
  174. }
  175.  
  176.  
  177. #define BYTES_PER_LINE 16
  178.  
  179. static void cmd_memr(int argc, char *argv[])
  180. {
  181.     uintptr_t addr;
  182.     size_t length;
  183.     uint8_t buf[BYTES_PER_LINE];
  184.     int to_read, i;
  185.     int rc;
  186.  
  187.     (void)argc;
  188.     addr = strtoul(argv[1], NULL, 0);
  189.     length = strtoul(argv[2], NULL, 0);
  190.  
  191.     while (length > 0) {
  192.         to_read = length < BYTES_PER_LINE ? length : BYTES_PER_LINE;
  193.  
  194.         rc = udebug_mem_read(app_phone, buf, addr, to_read);
  195.         if (rc < 0) {
  196.             cons_printf("error %d\n", rc);
  197.             return;
  198.         }
  199.  
  200.         cons_printf("0x%x:", addr);
  201.         for (i = 0; i < to_read; ++i) {
  202.             cons_printf(" %02x", buf[i]);
  203.         }
  204.         for (i = to_read; i < BYTES_PER_LINE; ++i) {
  205.             cons_printf("   ");
  206.         }
  207.  
  208.         putchar ('\t');
  209.  
  210.         for (i = 0; i < to_read; ++i) {
  211.             if (buf[i] >= 32 && buf[i] < 127)
  212.                 putchar(buf[i]);
  213.             else
  214.                 putchar('.');
  215.         }
  216.         cons_printf("\n");
  217.  
  218.         addr += to_read;
  219.         length -= to_read;
  220.     }
  221. }
  222.  
  223. void cmd_pwt(int argc, char *argv[])
  224. {
  225.     (void)argc; (void)argv;
  226.  
  227.     cons_printf("working thread: %d [hash 0x%x]\n", cwt->id, cwt->hash);
  228. }
  229.  
  230. void cmd_regs(int argc, char *argv[])
  231. {
  232.     (void)argc; (void)argv;
  233.  
  234.     if (cwt) arch_dump_regs(cwt->hash);
  235. }
  236.  
  237. void cmd_stop(int argc, char *argv[])
  238. {
  239.     link_t *cur;
  240.     dthread_t *dt;
  241.     int rc;
  242.  
  243.     (void)argc; (void)argv;
  244.  
  245.     dt = NULL;
  246.     for (cur = dthreads.next; cur != &dthreads; cur = cur->next) {
  247.         dt = list_get_instance(cur, dthread_t, link);
  248.         if (!dt->stopped) {
  249.             rc = udebug_stop(app_phone, dt->hash);
  250.             if (rc < 0) {
  251.                 printf("failed halting thread %d\n", dt->id);
  252.             }
  253.         }
  254.     }  
  255. }
  256.  
  257.  
  258. void cmd_threads(int argc, char *argv[])
  259. {
  260.     link_t *cur;
  261.     dthread_t *dt;
  262.  
  263.     (void)argc;
  264.  
  265.     dt = NULL;
  266.     for (cur = dthreads.next; cur != &dthreads; cur = cur->next) {
  267.         dt = list_get_instance(cur, dthread_t, link);
  268.         cons_printf("%d [hash 0x%x]\n", dt->id, dt->hash);
  269.     }  
  270. }
  271.  
  272.  
  273. static void cmd_quit(int argc, char *argv[])
  274. {
  275.     (void)argc; (void)argv;
  276.     quit = true;
  277. }
  278.  
  279. /** @}
  280.  */
  281.