Subversion Repositories HelenOS

Rev

Rev 2941 | Rev 2943 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

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