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  1. /*
  2.  * Copyright (c) 2005 Jakub Jermar
  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 genericconsole
  30.  * @{
  31.  */
  32.  
  33. /**
  34.  * @file  cmd.c
  35.  * @brief Kernel console command wrappers.
  36.  *
  37.  * This file is meant to contain all wrapper functions for
  38.  * all kconsole commands. The point is in separating
  39.  * kconsole specific wrappers from kconsole-unaware functions
  40.  * from other subsystems.
  41.  */
  42.  
  43. #include <console/cmd.h>
  44. #include <console/console.h>
  45. #include <console/kconsole.h>
  46. #include <print.h>
  47. #include <panic.h>
  48. #include <arch/types.h>
  49. #include <adt/list.h>
  50. #include <arch.h>
  51. #include <config.h>
  52. #include <func.h>
  53. #include <string.h>
  54. #include <macros.h>
  55. #include <debug.h>
  56. #include <cpu.h>
  57. #include <mm/tlb.h>
  58. #include <arch/mm/tlb.h>
  59. #include <mm/frame.h>
  60. #include <main/version.h>
  61. #include <mm/slab.h>
  62. #include <proc/scheduler.h>
  63. #include <proc/thread.h>
  64. #include <proc/task.h>
  65. #include <ipc/ipc.h>
  66. #include <ipc/irq.h>
  67. #include <event/event.h>
  68. #include <symtab.h>
  69. #include <errno.h>
  70.  
  71. #ifdef CONFIG_TEST
  72. #include <test.h>
  73. #endif
  74.  
  75. /* Data and methods for 'help' command. */
  76. static int cmd_help(cmd_arg_t *argv);
  77. static cmd_info_t help_info = {
  78.     .name = "help",
  79.     .description = "List of supported commands.",
  80.     .func = cmd_help,
  81.     .argc = 0
  82. };
  83.  
  84. static int cmd_reboot(cmd_arg_t *argv);
  85. static cmd_info_t reboot_info = {
  86.     .name = "reboot",
  87.     .description = "Reboot.",
  88.     .func = cmd_reboot,
  89.     .argc = 0
  90. };
  91.  
  92. static int cmd_uptime(cmd_arg_t *argv);
  93. static cmd_info_t uptime_info = {
  94.     .name = "uptime",
  95.     .description = "Print uptime information.",
  96.     .func = cmd_uptime,
  97.     .argc = 0
  98. };
  99.  
  100. static int cmd_continue(cmd_arg_t *argv);
  101. static cmd_info_t continue_info = {
  102.     .name = "continue",
  103.     .description = "Return console back to userspace.",
  104.     .func = cmd_continue,
  105.     .argc = 0
  106. };
  107.  
  108. #ifdef CONFIG_TEST
  109. static int cmd_tests(cmd_arg_t *argv);
  110. static cmd_info_t tests_info = {
  111.     .name = "tests",
  112.     .description = "Print available kernel tests.",
  113.     .func = cmd_tests,
  114.     .argc = 0
  115. };
  116.  
  117. static char test_buf[MAX_CMDLINE + 1];
  118. static int cmd_test(cmd_arg_t *argv);
  119. static cmd_arg_t test_argv[] = {
  120.     {
  121.         .type = ARG_TYPE_STRING,
  122.         .buffer = test_buf,
  123.         .len = sizeof(test_buf)
  124.     }
  125. };
  126. static cmd_info_t test_info = {
  127.     .name = "test",
  128.     .description = "Run kernel test.",
  129.     .func = cmd_test,
  130.     .argc = 1,
  131.     .argv = test_argv
  132. };
  133.  
  134. static int cmd_bench(cmd_arg_t *argv);
  135. static cmd_arg_t bench_argv[] = {
  136.     {
  137.         .type = ARG_TYPE_STRING,
  138.         .buffer = test_buf,
  139.         .len = sizeof(test_buf)
  140.     },
  141.     {
  142.         .type = ARG_TYPE_INT,
  143.     }
  144. };
  145. static cmd_info_t bench_info = {
  146.     .name = "bench",
  147.     .description = "Run kernel test as benchmark.",
  148.     .func = cmd_bench,
  149.     .argc = 2,
  150.     .argv = bench_argv
  151. };
  152. #endif
  153.  
  154. /* Data and methods for 'description' command. */
  155. static int cmd_desc(cmd_arg_t *argv);
  156. static void desc_help(void);
  157. static char desc_buf[MAX_CMDLINE+1];
  158. static cmd_arg_t desc_argv = {
  159.     .type = ARG_TYPE_STRING,
  160.     .buffer = desc_buf,
  161.     .len = sizeof(desc_buf)
  162. };
  163. static cmd_info_t desc_info = {
  164.     .name = "describe",
  165.     .description = "Describe specified command.",
  166.     .help = desc_help,
  167.     .func = cmd_desc,
  168.     .argc = 1,
  169.     .argv = &desc_argv
  170. };
  171.  
  172. /* Data and methods for 'symaddr' command. */
  173. static int cmd_symaddr(cmd_arg_t *argv);
  174. static char symaddr_buf[MAX_CMDLINE+1];
  175. static cmd_arg_t symaddr_argv = {
  176.     .type = ARG_TYPE_STRING,
  177.     .buffer = symaddr_buf,
  178.     .len = sizeof(symaddr_buf)
  179. };
  180. static cmd_info_t symaddr_info = {
  181.     .name = "symaddr",
  182.     .description = "Return symbol address.",
  183.     .func = cmd_symaddr,
  184.     .argc = 1,
  185.     .argv = &symaddr_argv
  186. };
  187.  
  188. static char set_buf[MAX_CMDLINE+1];
  189. static int cmd_set4(cmd_arg_t *argv);
  190. static cmd_arg_t set4_argv[] = {
  191.     {
  192.         .type = ARG_TYPE_STRING,
  193.         .buffer = set_buf,
  194.         .len = sizeof(set_buf)
  195.     },
  196.     {
  197.         .type = ARG_TYPE_INT
  198.     }
  199. };
  200. static cmd_info_t set4_info = {
  201.     .name = "set4",
  202.     .description = "set <dest_addr> <value> - 4byte version",
  203.     .func = cmd_set4,
  204.     .argc = 2,
  205.     .argv = set4_argv
  206. };
  207.  
  208. /* Data and methods for 'call0' command. */
  209. static char call0_buf[MAX_CMDLINE + 1];
  210. static char carg1_buf[MAX_CMDLINE + 1];
  211. static char carg2_buf[MAX_CMDLINE + 1];
  212. static char carg3_buf[MAX_CMDLINE + 1];
  213.  
  214. static int cmd_call0(cmd_arg_t *argv);
  215. static cmd_arg_t call0_argv = {
  216.     .type = ARG_TYPE_STRING,
  217.     .buffer = call0_buf,
  218.     .len = sizeof(call0_buf)
  219. };
  220. static cmd_info_t call0_info = {
  221.     .name = "call0",
  222.     .description = "call0 <function> -> call function().",
  223.     .func = cmd_call0,
  224.     .argc = 1,
  225.     .argv = &call0_argv
  226. };
  227.  
  228. /* Data and methods for 'mcall0' command. */
  229. static int cmd_mcall0(cmd_arg_t *argv);
  230. static cmd_arg_t mcall0_argv = {
  231.     .type = ARG_TYPE_STRING,
  232.     .buffer = call0_buf,
  233.     .len = sizeof(call0_buf)
  234. };
  235. static cmd_info_t mcall0_info = {
  236.     .name = "mcall0",
  237.     .description = "mcall0 <function> -> call function() on each CPU.",
  238.     .func = cmd_mcall0,
  239.     .argc = 1,
  240.     .argv = &mcall0_argv
  241. };
  242.  
  243. /* Data and methods for 'call1' command. */
  244. static int cmd_call1(cmd_arg_t *argv);
  245. static cmd_arg_t call1_argv[] = {
  246.     {
  247.         .type = ARG_TYPE_STRING,
  248.         .buffer = call0_buf,
  249.         .len = sizeof(call0_buf)
  250.     },
  251.     {
  252.         .type = ARG_TYPE_VAR,
  253.         .buffer = carg1_buf,
  254.         .len = sizeof(carg1_buf)
  255.     }
  256. };
  257. static cmd_info_t call1_info = {
  258.     .name = "call1",
  259.     .description = "call1 <function> <arg1> -> call function(arg1).",
  260.     .func = cmd_call1,
  261.     .argc = 2,
  262.     .argv = call1_argv
  263. };
  264.  
  265. /* Data and methods for 'call2' command. */
  266. static int cmd_call2(cmd_arg_t *argv);
  267. static cmd_arg_t call2_argv[] = {
  268.     {
  269.         .type = ARG_TYPE_STRING,
  270.         .buffer = call0_buf,
  271.         .len = sizeof(call0_buf)
  272.     },
  273.     {
  274.         .type = ARG_TYPE_VAR,
  275.         .buffer = carg1_buf,
  276.         .len = sizeof(carg1_buf)
  277.     },
  278.     {
  279.         .type = ARG_TYPE_VAR,
  280.         .buffer = carg2_buf,
  281.         .len = sizeof(carg2_buf)
  282.     }
  283. };
  284. static cmd_info_t call2_info = {
  285.     .name = "call2",
  286.     .description = "call2 <function> <arg1> <arg2> -> call function(arg1,arg2).",
  287.     .func = cmd_call2,
  288.     .argc = 3,
  289.     .argv = call2_argv
  290. };
  291.  
  292. /* Data and methods for 'call3' command. */
  293. static int cmd_call3(cmd_arg_t *argv);
  294. static cmd_arg_t call3_argv[] = {
  295.     {
  296.         .type = ARG_TYPE_STRING,
  297.         .buffer = call0_buf,
  298.         .len = sizeof(call0_buf)
  299.     },
  300.     {
  301.         .type = ARG_TYPE_VAR,
  302.         .buffer = carg1_buf,
  303.         .len = sizeof(carg1_buf)
  304.     },
  305.     {
  306.         .type = ARG_TYPE_VAR,
  307.         .buffer = carg2_buf,
  308.         .len = sizeof(carg2_buf)
  309.     },
  310.     {
  311.         .type = ARG_TYPE_VAR,
  312.         .buffer = carg3_buf,
  313.         .len = sizeof(carg3_buf)
  314.     }
  315.  
  316. };
  317. static cmd_info_t call3_info = {
  318.     .name = "call3",
  319.     .description = "call3 <function> <arg1> <arg2> <arg3> -> call function(arg1,arg2,arg3).",
  320.     .func = cmd_call3,
  321.     .argc = 4,
  322.     .argv = call3_argv
  323. };
  324.  
  325. /* Data and methods for 'halt' command. */
  326. static int cmd_halt(cmd_arg_t *argv);
  327. static cmd_info_t halt_info = {
  328.     .name = "halt",
  329.     .description = "Halt the kernel.",
  330.     .func = cmd_halt,
  331.     .argc = 0
  332. };
  333.  
  334. /* Data and methods for 'physmem' command. */
  335. static int cmd_physmem(cmd_arg_t *argv);
  336. cmd_info_t physmem_info = {
  337.     .name = "physmem",
  338.     .description = "Print physical memory configuration.",
  339.     .help = NULL,
  340.     .func = cmd_physmem,
  341.     .argc = 0,
  342.     .argv = NULL
  343. };
  344.  
  345. /* Data and methods for 'tlb' command. */
  346. static int cmd_tlb(cmd_arg_t *argv);
  347. cmd_info_t tlb_info = {
  348.     .name = "tlb",
  349.     .description = "Print TLB of current processor.",
  350.     .help = NULL,
  351.     .func = cmd_tlb,
  352.     .argc = 0,
  353.     .argv = NULL
  354. };
  355.  
  356. static int cmd_threads(cmd_arg_t *argv);
  357. static cmd_info_t threads_info = {
  358.     .name = "threads",
  359.     .description = "List all threads.",
  360.     .func = cmd_threads,
  361.     .argc = 0
  362. };
  363.  
  364. static int cmd_tasks(cmd_arg_t *argv);
  365. static cmd_info_t tasks_info = {
  366.     .name = "tasks",
  367.     .description = "List all tasks.",
  368.     .func = cmd_tasks,
  369.     .argc = 0
  370. };
  371.  
  372.  
  373. static int cmd_sched(cmd_arg_t *argv);
  374. static cmd_info_t sched_info = {
  375.     .name = "scheduler",
  376.     .description = "List all scheduler information.",
  377.     .func = cmd_sched,
  378.     .argc = 0
  379. };
  380.  
  381. static int cmd_slabs(cmd_arg_t *argv);
  382. static cmd_info_t slabs_info = {
  383.     .name = "slabs",
  384.     .description = "List slab caches.",
  385.     .func = cmd_slabs,
  386.     .argc = 0
  387. };
  388.  
  389. /* Data and methods for 'zones' command */
  390. static int cmd_zones(cmd_arg_t *argv);
  391. static cmd_info_t zones_info = {
  392.     .name = "zones",
  393.     .description = "List of memory zones.",
  394.     .func = cmd_zones,
  395.     .argc = 0
  396. };
  397.  
  398. /* Data and methods for 'ipc' command */
  399. static int cmd_ipc(cmd_arg_t *argv);
  400. static cmd_arg_t ipc_argv = {
  401.     .type = ARG_TYPE_INT,
  402. };
  403. static cmd_info_t ipc_info = {
  404.     .name = "ipc",
  405.     .description = "ipc <taskid> Show IPC information of given task.",
  406.     .func = cmd_ipc,
  407.     .argc = 1,
  408.     .argv = &ipc_argv
  409. };
  410.  
  411. /* Data and methods for 'zone' command */
  412. static int cmd_zone(cmd_arg_t *argv);
  413. static cmd_arg_t zone_argv = {
  414.     .type = ARG_TYPE_INT,
  415. };
  416.  
  417. static cmd_info_t zone_info = {
  418.     .name = "zone",
  419.     .description = "Show memory zone structure.",
  420.     .func = cmd_zone,
  421.     .argc = 1,
  422.     .argv = &zone_argv
  423. };
  424.  
  425. /* Data and methods for 'cpus' command. */
  426. static int cmd_cpus(cmd_arg_t *argv);
  427. cmd_info_t cpus_info = {
  428.     .name = "cpus",
  429.     .description = "List all processors.",
  430.     .help = NULL,
  431.     .func = cmd_cpus,
  432.     .argc = 0,
  433.     .argv = NULL
  434. };
  435.  
  436. /* Data and methods for 'version' command. */
  437. static int cmd_version(cmd_arg_t *argv);
  438. cmd_info_t version_info = {
  439.     .name = "version",
  440.     .description = "Print version information.",
  441.     .help = NULL,
  442.     .func = cmd_version,
  443.     .argc = 0,
  444.     .argv = NULL
  445. };
  446.  
  447. static cmd_info_t *basic_commands[] = {
  448.     &call0_info,
  449.     &mcall0_info,
  450.     &call1_info,
  451.     &call2_info,
  452.     &call3_info,
  453.     &continue_info,
  454.     &cpus_info,
  455.     &desc_info,
  456.     &reboot_info,
  457.     &uptime_info,
  458.     &halt_info,
  459.     &help_info,
  460.     &ipc_info,
  461.     &set4_info,
  462.     &slabs_info,
  463.     &symaddr_info,
  464.     &sched_info,
  465.     &threads_info,
  466.     &tasks_info,
  467.     &physmem_info,
  468.     &tlb_info,
  469.     &version_info,
  470.     &zones_info,
  471.     &zone_info,
  472. #ifdef CONFIG_TEST
  473.     &tests_info,
  474.     &test_info,
  475.     &bench_info,
  476. #endif
  477.     NULL
  478. };
  479.  
  480.  
  481. /** Initialize command info structure.
  482.  *
  483.  * @param cmd Command info structure.
  484.  *
  485.  */
  486. void cmd_initialize(cmd_info_t *cmd)
  487. {
  488.     spinlock_initialize(&cmd->lock, "cmd");
  489.     link_initialize(&cmd->link);
  490. }
  491.  
  492. /** Initialize and register commands. */
  493. void cmd_init(void)
  494. {
  495.     unsigned int i;
  496.  
  497.     for (i = 0; basic_commands[i]; i++) {
  498.         cmd_initialize(basic_commands[i]);
  499.         if (!cmd_register(basic_commands[i]))
  500.             printf("Cannot register command %s\n", basic_commands[i]->name);
  501.     }
  502. }
  503.  
  504.  
  505. /** List supported commands.
  506.  *
  507.  * @param argv Argument vector.
  508.  *
  509.  * @return 0 on failure, 1 on success.
  510.  */
  511. int cmd_help(cmd_arg_t *argv)
  512. {
  513.     spinlock_lock(&cmd_lock);
  514.    
  515.     link_t *cur;
  516.     count_t len = 0;
  517.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  518.         cmd_info_t *hlp;
  519.         hlp = list_get_instance(cur, cmd_info_t, link);
  520.        
  521.         spinlock_lock(&hlp->lock);
  522.         if (str_length(hlp->name) > len)
  523.             len = str_length(hlp->name);
  524.         spinlock_unlock(&hlp->lock);
  525.     }
  526.    
  527.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  528.         cmd_info_t *hlp;
  529.         hlp = list_get_instance(cur, cmd_info_t, link);
  530.        
  531.         spinlock_lock(&hlp->lock);
  532.         printf("%-*s %s\n", len, hlp->name, hlp->description);
  533.         spinlock_unlock(&hlp->lock);
  534.     }
  535.    
  536.     spinlock_unlock(&cmd_lock);
  537.    
  538.     return 1;
  539. }
  540.  
  541.  
  542. /** Reboot the system.
  543.  *
  544.  * @param argv Argument vector.
  545.  *
  546.  * @return 0 on failure, 1 on success.
  547.  */
  548. int cmd_reboot(cmd_arg_t *argv)
  549. {
  550.     reboot();
  551.    
  552.     /* Not reached */
  553.     return 1;
  554. }
  555.  
  556.  
  557. /** Print system uptime information.
  558.  *
  559.  * @param argv Argument vector.
  560.  *
  561.  * @return 0 on failure, 1 on success.
  562.  */
  563. int cmd_uptime(cmd_arg_t *argv)
  564. {
  565.     ASSERT(uptime);
  566.    
  567.     /* This doesn't have to be very accurate */
  568.     unative_t sec = uptime->seconds1;
  569.    
  570.     printf("Up %" PRIun " days, %" PRIun " hours, %" PRIun " minutes, %" PRIun " seconds\n",
  571.         sec / 86400, (sec % 86400) / 3600, (sec % 3600) / 60, sec % 60);
  572.    
  573.     return 1;
  574. }
  575.  
  576. /** Describe specified command.
  577.  *
  578.  * @param argv Argument vector.
  579.  *
  580.  * @return 0 on failure, 1 on success.
  581.  */
  582. int cmd_desc(cmd_arg_t *argv)
  583. {
  584.     link_t *cur;
  585.    
  586.     spinlock_lock(&cmd_lock);
  587.    
  588.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  589.         cmd_info_t *hlp;
  590.        
  591.         hlp = list_get_instance(cur, cmd_info_t, link);
  592.         spinlock_lock(&hlp->lock);
  593.        
  594.         if (str_lcmp(hlp->name, (const char *) argv->buffer, str_length(hlp->name)) == 0) {
  595.             printf("%s - %s\n", hlp->name, hlp->description);
  596.             if (hlp->help)
  597.                 hlp->help();
  598.             spinlock_unlock(&hlp->lock);
  599.             break;
  600.         }
  601.        
  602.         spinlock_unlock(&hlp->lock);
  603.     }
  604.    
  605.     spinlock_unlock(&cmd_lock);
  606.    
  607.     return 1;
  608. }
  609.  
  610. /** Search symbol table */
  611. int cmd_symaddr(cmd_arg_t *argv)
  612. {
  613.     symtab_print_search((char *) argv->buffer);
  614.    
  615.     return 1;
  616. }
  617.  
  618. /** Call function with zero parameters */
  619. int cmd_call0(cmd_arg_t *argv)
  620. {
  621.     uintptr_t symaddr;
  622.     char *symbol;
  623.     unative_t (*fnc)(void);
  624.     fncptr_t fptr;
  625.     int rc;
  626.  
  627.     symbol = (char *) argv->buffer;
  628.     rc = symtab_addr_lookup(symbol, &symaddr);
  629.  
  630.     if (rc == ENOENT)
  631.         printf("Symbol %s not found.\n", symbol);
  632.     else if (rc == EOVERFLOW) {
  633.         symtab_print_search(symbol);
  634.         printf("Duplicate symbol, be more specific.\n");
  635.     } else if (rc == EOK) {
  636.         fnc = (unative_t (*)(void)) arch_construct_function(&fptr,
  637.             (void *) symaddr, (void *) cmd_call0);
  638.         printf("Calling %s() (%p)\n", symbol, symaddr);
  639.         printf("Result: %#" PRIxn "\n", fnc());
  640.     } else {
  641.         printf("No symbol information available.\n");
  642.     }
  643.     return 1;
  644. }
  645.  
  646. /** Call function with zero parameters on each CPU */
  647. int cmd_mcall0(cmd_arg_t *argv)
  648. {
  649.     /*
  650.      * For each CPU, create a thread which will
  651.      * call the function.
  652.      */
  653.    
  654.     count_t i;
  655.     for (i = 0; i < config.cpu_count; i++) {
  656.         if (!cpus[i].active)
  657.             continue;
  658.        
  659.         thread_t *t;
  660.         if ((t = thread_create((void (*)(void *)) cmd_call0, (void *) argv, TASK, THREAD_FLAG_WIRED, "call0", false))) {
  661.             spinlock_lock(&t->lock);
  662.             t->cpu = &cpus[i];
  663.             spinlock_unlock(&t->lock);
  664.             printf("cpu%u: ", i);
  665.             thread_ready(t);
  666.             thread_join(t);
  667.             thread_detach(t);
  668.         } else
  669.             printf("Unable to create thread for cpu%u\n", i);
  670.     }
  671.    
  672.     return 1;
  673. }
  674.  
  675. /** Call function with one parameter */
  676. int cmd_call1(cmd_arg_t *argv)
  677. {
  678.     uintptr_t symaddr;
  679.     char *symbol;
  680.     unative_t (*fnc)(unative_t, ...);
  681.     unative_t arg1 = argv[1].intval;
  682.     fncptr_t fptr;
  683.     int rc;
  684.  
  685.     symbol = (char *) argv->buffer;
  686.     rc = symtab_addr_lookup(symbol, &symaddr);
  687.  
  688.     if (rc == ENOENT) {
  689.         printf("Symbol %s not found.\n", symbol);
  690.     } else if (rc == EOVERFLOW) {
  691.         symtab_print_search(symbol);
  692.         printf("Duplicate symbol, be more specific.\n");
  693.     } else if (rc == EOK) {
  694.         fnc = (unative_t (*)(unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call1);
  695.         printf("Calling f(%#" PRIxn "): %p: %s\n", arg1, symaddr, symbol);
  696.         printf("Result: %#" PRIxn "\n", fnc(arg1));
  697.     } else {
  698.         printf("No symbol information available.\n");
  699.     }
  700.  
  701.     return 1;
  702. }
  703.  
  704. /** Call function with two parameters */
  705. int cmd_call2(cmd_arg_t *argv)
  706. {
  707.     uintptr_t symaddr;
  708.     char *symbol;
  709.     unative_t (*fnc)(unative_t, unative_t, ...);
  710.     unative_t arg1 = argv[1].intval;
  711.     unative_t arg2 = argv[2].intval;
  712.     fncptr_t fptr;
  713.     int rc;
  714.  
  715.     symbol = (char *) argv->buffer;
  716.     rc = symtab_addr_lookup(symbol, &symaddr);
  717.  
  718.     if (rc == ENOENT) {
  719.         printf("Symbol %s not found.\n", symbol);
  720.     } else if (rc == EOVERFLOW) {
  721.         symtab_print_search(symbol);
  722.         printf("Duplicate symbol, be more specific.\n");
  723.     } else if (rc == EOK) {
  724.         fnc = (unative_t (*)(unative_t, unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call2);
  725.         printf("Calling f(%#" PRIxn ", %#" PRIxn "): %p: %s\n",
  726.                arg1, arg2, symaddr, symbol);
  727.         printf("Result: %#" PRIxn "\n", fnc(arg1, arg2));
  728.     } else {
  729.         printf("No symbol information available.\n");
  730.     }
  731.     return 1;
  732. }
  733.  
  734. /** Call function with three parameters */
  735. int cmd_call3(cmd_arg_t *argv)
  736. {
  737.     uintptr_t symaddr;
  738.     char *symbol;
  739.     unative_t (*fnc)(unative_t, unative_t, unative_t, ...);
  740.     unative_t arg1 = argv[1].intval;
  741.     unative_t arg2 = argv[2].intval;
  742.     unative_t arg3 = argv[3].intval;
  743.     fncptr_t fptr;
  744.     int rc;
  745.    
  746.     symbol = (char *) argv->buffer;
  747.     rc = symtab_addr_lookup(symbol, &symaddr);
  748.  
  749.     if (rc == ENOENT) {
  750.         printf("Symbol %s not found.\n", symbol);
  751.     } else if (rc == EOVERFLOW) {
  752.         symtab_print_search(symbol);
  753.         printf("Duplicate symbol, be more specific.\n");
  754.     } else if (rc == EOK) {
  755.         fnc = (unative_t (*)(unative_t, unative_t, unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call3);
  756.         printf("Calling f(%#" PRIxn ",%#" PRIxn ", %#" PRIxn "): %p: %s\n",
  757.                arg1, arg2, arg3, symaddr, symbol);
  758.         printf("Result: %#" PRIxn "\n", fnc(arg1, arg2, arg3));
  759.     } else {
  760.         printf("No symbol information available.\n");
  761.     }
  762.     return 1;
  763. }
  764.  
  765.  
  766. /** Print detailed description of 'describe' command. */
  767. void desc_help(void)
  768. {
  769.     printf("Syntax: describe command_name\n");
  770. }
  771.  
  772. /** Halt the kernel.
  773.  *
  774.  * @param argv Argument vector (ignored).
  775.  *
  776.  * @return 0 on failure, 1 on success (never returns).
  777.  */
  778. int cmd_halt(cmd_arg_t *argv)
  779. {
  780.     halt();
  781.     return 1;
  782. }
  783.  
  784. /** Command for printing TLB contents.
  785.  *
  786.  * @param argv Not used.
  787.  *
  788.  * @return Always returns 1.
  789.  */
  790. int cmd_tlb(cmd_arg_t *argv)
  791. {
  792.     tlb_print();
  793.     return 1;
  794. }
  795.  
  796. /** Command for printing physical memory configuration.
  797.  *
  798.  * @param argv Not used.
  799.  *
  800.  * @return Always returns 1.
  801.  */
  802. int cmd_physmem(cmd_arg_t *argv)
  803. {
  804.     physmem_print();
  805.     return 1;
  806. }
  807.  
  808. /** Write 4 byte value to address */
  809. int cmd_set4(cmd_arg_t *argv)
  810. {
  811.     uintptr_t addr;
  812.     uint32_t arg1 = argv[1].intval;
  813.     bool pointer = false;
  814.     int rc;
  815.  
  816.     if (((char *)argv->buffer)[0] == '*') {
  817.         rc = symtab_addr_lookup((char *) argv->buffer + 1, &addr);
  818.         pointer = true;
  819.     } else if (((char *) argv->buffer)[0] >= '0' &&
  820.            ((char *)argv->buffer)[0] <= '9') {
  821.         rc = EOK;
  822.         addr = atoi((char *)argv->buffer);
  823.     } else {
  824.         rc = symtab_addr_lookup((char *) argv->buffer, &addr);
  825.     }
  826.  
  827.     if (rc == ENOENT)
  828.         printf("Symbol %s not found.\n", argv->buffer);
  829.     else if (rc == EOVERFLOW) {
  830.         symtab_print_search((char *) argv->buffer);
  831.         printf("Duplicate symbol, be more specific.\n");
  832.     } else if (rc == EOK) {
  833.         if (pointer)
  834.             addr = *(uintptr_t *) addr;
  835.         printf("Writing %#" PRIx64 " -> %p\n", arg1, addr);
  836.         *(uint32_t *) addr = arg1;
  837.     } else {
  838.         printf("No symbol information available.\n");
  839.     }
  840.    
  841.     return 1;
  842. }
  843.  
  844. /** Command for listings SLAB caches
  845.  *
  846.  * @param argv Ignores
  847.  *
  848.  * @return Always 1
  849.  */
  850. int cmd_slabs(cmd_arg_t * argv) {
  851.     slab_print_list();
  852.     return 1;
  853. }
  854.  
  855.  
  856. /** Command for listings Thread information
  857.  *
  858.  * @param argv Ignores
  859.  *
  860.  * @return Always 1
  861.  */
  862. int cmd_threads(cmd_arg_t * argv) {
  863.     thread_print_list();
  864.     return 1;
  865. }
  866.  
  867. /** Command for listings Task information
  868.  *
  869.  * @param argv Ignores
  870.  *
  871.  * @return Always 1
  872.  */
  873. int cmd_tasks(cmd_arg_t * argv) {
  874.     task_print_list();
  875.     return 1;
  876. }
  877.  
  878. /** Command for listings Thread information
  879.  *
  880.  * @param argv Ignores
  881.  *
  882.  * @return Always 1
  883.  */
  884. int cmd_sched(cmd_arg_t * argv) {
  885.     sched_print_list();
  886.     return 1;
  887. }
  888.  
  889. /** Command for listing memory zones
  890.  *
  891.  * @param argv Ignored
  892.  *
  893.  * return Always 1
  894.  */
  895. int cmd_zones(cmd_arg_t * argv) {
  896.     zone_print_list();
  897.     return 1;
  898. }
  899.  
  900. /** Command for memory zone details
  901.  *
  902.  * @param argv Integer argument from cmdline expected
  903.  *
  904.  * return Always 1
  905.  */
  906. int cmd_zone(cmd_arg_t * argv) {
  907.     zone_print_one(argv[0].intval);
  908.     return 1;
  909. }
  910.  
  911. /** Command for printing task ipc details
  912.  *
  913.  * @param argv Integer argument from cmdline expected
  914.  *
  915.  * return Always 1
  916.  */
  917. int cmd_ipc(cmd_arg_t * argv) {
  918.     ipc_print_task(argv[0].intval);
  919.     return 1;
  920. }
  921.  
  922.  
  923. /** Command for listing processors.
  924.  *
  925.  * @param argv Ignored.
  926.  *
  927.  * return Always 1.
  928.  */
  929. int cmd_cpus(cmd_arg_t *argv)
  930. {
  931.     cpu_list();
  932.     return 1;
  933. }
  934.  
  935. /** Command for printing kernel version.
  936.  *
  937.  * @param argv Ignored.
  938.  *
  939.  * return Always 1.
  940.  */
  941. int cmd_version(cmd_arg_t *argv)
  942. {
  943.     version_print();
  944.     return 1;
  945. }
  946.  
  947. /** Command for returning console back to userspace.
  948.  *
  949.  * @param argv Ignored.
  950.  *
  951.  * return Always 1.
  952.  */
  953. int cmd_continue(cmd_arg_t *argv)
  954. {
  955.     printf("The kernel will now relinquish the console.\n");
  956.     release_console();
  957.    
  958.     event_notify_0(EVENT_KCONSOLE);
  959.    
  960.     return 1;
  961. }
  962.  
  963. #ifdef CONFIG_TEST
  964. /** Command for printing kernel tests list.
  965.  *
  966.  * @param argv Ignored.
  967.  *
  968.  * return Always 1.
  969.  */
  970. int cmd_tests(cmd_arg_t *argv)
  971. {
  972.     count_t len = 0;
  973.     test_t *test;
  974.     for (test = tests; test->name != NULL; test++) {
  975.         if (str_length(test->name) > len)
  976.             len = str_length(test->name);
  977.     }
  978.    
  979.     for (test = tests; test->name != NULL; test++)
  980.         printf("%-*s %s%s\n", len, test->name, test->desc, (test->safe ? "" : " (unsafe)"));
  981.    
  982.     printf("%-*s Run all safe tests\n", len, "*");
  983.     return 1;
  984. }
  985.  
  986. static bool run_test(const test_t *test)
  987. {
  988.     printf("%s (%s)\n", test->name, test->desc);
  989.    
  990.     /* Update and read thread accounting
  991.        for benchmarking */
  992.     ipl_t ipl = interrupts_disable();
  993.     spinlock_lock(&TASK->lock);
  994.     uint64_t t0 = task_get_accounting(TASK);
  995.     spinlock_unlock(&TASK->lock);
  996.     interrupts_restore(ipl);
  997.    
  998.     /* Execute the test */
  999.     test_quiet = false;
  1000.     char *ret = test->entry();
  1001.    
  1002.     /* Update and read thread accounting */
  1003.     ipl = interrupts_disable();
  1004.     spinlock_lock(&TASK->lock);
  1005.     uint64_t dt = task_get_accounting(TASK) - t0;
  1006.     spinlock_unlock(&TASK->lock);
  1007.     interrupts_restore(ipl);
  1008.    
  1009.     uint64_t cycles;
  1010.     char suffix;
  1011.     order(dt, &cycles, &suffix);
  1012.        
  1013.     printf("Time: %" PRIu64 "%c cycles\n", cycles, suffix);
  1014.    
  1015.     if (ret == NULL) {
  1016.         printf("Test passed\n");
  1017.         return true;
  1018.     }
  1019.  
  1020.     printf("%s\n", ret);
  1021.     return false;
  1022. }
  1023.  
  1024. static bool run_bench(const test_t *test, const uint32_t cnt)
  1025. {
  1026.     uint32_t i;
  1027.     bool ret = true;
  1028.     uint64_t cycles;
  1029.     char suffix;
  1030.    
  1031.     if (cnt < 1)
  1032.         return true;
  1033.    
  1034.     uint64_t *data = (uint64_t *) malloc(sizeof(uint64_t) * cnt, 0);
  1035.     if (data == NULL) {
  1036.         printf("Error allocating memory for statistics\n");
  1037.         return false;
  1038.     }
  1039.    
  1040.     for (i = 0; i < cnt; i++) {
  1041.         printf("%s (%u/%u) ... ", test->name, i + 1, cnt);
  1042.        
  1043.         /* Update and read thread accounting
  1044.            for benchmarking */
  1045.         ipl_t ipl = interrupts_disable();
  1046.         spinlock_lock(&TASK->lock);
  1047.         uint64_t t0 = task_get_accounting(TASK);
  1048.         spinlock_unlock(&TASK->lock);
  1049.         interrupts_restore(ipl);
  1050.        
  1051.         /* Execute the test */
  1052.         test_quiet = true;
  1053.         char * ret = test->entry();
  1054.        
  1055.         /* Update and read thread accounting */
  1056.         ipl = interrupts_disable();
  1057.         spinlock_lock(&TASK->lock);
  1058.         uint64_t dt = task_get_accounting(TASK) - t0;
  1059.         spinlock_unlock(&TASK->lock);
  1060.         interrupts_restore(ipl);
  1061.        
  1062.         if (ret != NULL) {
  1063.             printf("%s\n", ret);
  1064.             ret = false;
  1065.             break;
  1066.         }
  1067.        
  1068.         data[i] = dt;
  1069.         order(dt, &cycles, &suffix);
  1070.         printf("OK (%" PRIu64 "%c cycles)\n", cycles, suffix);
  1071.     }
  1072.    
  1073.     if (ret) {
  1074.         printf("\n");
  1075.        
  1076.         uint64_t sum = 0;
  1077.        
  1078.         for (i = 0; i < cnt; i++) {
  1079.             sum += data[i];
  1080.         }
  1081.        
  1082.         order(sum / (uint64_t) cnt, &cycles, &suffix);
  1083.         printf("Average\t\t%" PRIu64 "%c\n", cycles, suffix);
  1084.     }
  1085.    
  1086.     free(data);
  1087.    
  1088.     return ret;
  1089. }
  1090.  
  1091. /** Command for returning kernel tests
  1092.  *
  1093.  * @param argv Argument vector.
  1094.  *
  1095.  * return Always 1.
  1096.  */
  1097. int cmd_test(cmd_arg_t *argv)
  1098. {
  1099.     test_t *test;
  1100.    
  1101.     if (str_cmp((char *) argv->buffer, "*") == 0) {
  1102.         for (test = tests; test->name != NULL; test++) {
  1103.             if (test->safe) {
  1104.                 printf("\n");
  1105.                 if (!run_test(test))
  1106.                     break;
  1107.             }
  1108.         }
  1109.     } else {
  1110.         bool fnd = false;
  1111.        
  1112.         for (test = tests; test->name != NULL; test++) {
  1113.             if (str_cmp(test->name, (char *) argv->buffer) == 0) {
  1114.                 fnd = true;
  1115.                 run_test(test);
  1116.                 break;
  1117.             }
  1118.         }
  1119.        
  1120.         if (!fnd)
  1121.             printf("Unknown test\n");
  1122.     }
  1123.    
  1124.     return 1;
  1125. }
  1126.  
  1127. /** Command for returning kernel tests as benchmarks
  1128.  *
  1129.  * @param argv Argument vector.
  1130.  *
  1131.  * return Always 1.
  1132.  */
  1133. int cmd_bench(cmd_arg_t *argv)
  1134. {
  1135.     test_t *test;
  1136.     uint32_t cnt = argv[1].intval;
  1137.    
  1138.     bool fnd = false;
  1139.    
  1140.     for (test = tests; test->name != NULL; test++) {
  1141.         if (str_cmp(test->name, (char *) argv->buffer) == 0) {
  1142.             fnd = true;
  1143.            
  1144.             if (test->safe)
  1145.                 run_bench(test, cnt);
  1146.             else
  1147.                 printf("Unsafe test\n");
  1148.            
  1149.             break;
  1150.         }
  1151.     }
  1152.        
  1153.     if (!fnd)
  1154.         printf("Unknown test\n");
  1155.    
  1156.     return 1;
  1157. }
  1158.  
  1159. #endif
  1160.  
  1161. /** @}
  1162.  */
  1163.