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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.  
  68. #ifdef CONFIG_SYMTAB
  69. #include <symtab.h>
  70. #endif
  71.  
  72. #ifdef CONFIG_TEST
  73. #include <test.h>
  74. #endif
  75.  
  76. /* Data and methods for 'help' command. */
  77. static int cmd_help(cmd_arg_t *argv);
  78. static cmd_info_t help_info = {
  79.     .name = "help",
  80.     .description = "List of supported commands.",
  81.     .func = cmd_help,
  82.     .argc = 0
  83. };
  84.  
  85. static int cmd_reboot(cmd_arg_t *argv);
  86. static cmd_info_t reboot_info = {
  87.     .name = "reboot",
  88.     .description = "Reboot.",
  89.     .func = cmd_reboot,
  90.     .argc = 0
  91. };
  92.  
  93. static int cmd_uptime(cmd_arg_t *argv);
  94. static cmd_info_t uptime_info = {
  95.     .name = "uptime",
  96.     .description = "Print uptime information.",
  97.     .func = cmd_uptime,
  98.     .argc = 0
  99. };
  100.  
  101. static int cmd_continue(cmd_arg_t *argv);
  102. static cmd_info_t continue_info = {
  103.     .name = "continue",
  104.     .description = "Return console back to userspace.",
  105.     .func = cmd_continue,
  106.     .argc = 0
  107. };
  108.  
  109. #ifdef CONFIG_TEST
  110. static int cmd_tests(cmd_arg_t *argv);
  111. static cmd_info_t tests_info = {
  112.     .name = "tests",
  113.     .description = "Print available kernel tests.",
  114.     .func = cmd_tests,
  115.     .argc = 0
  116. };
  117.  
  118. static char test_buf[MAX_CMDLINE + 1];
  119. static int cmd_test(cmd_arg_t *argv);
  120. static cmd_arg_t test_argv[] = {
  121.     {
  122.         .type = ARG_TYPE_STRING,
  123.         .buffer = test_buf,
  124.         .len = sizeof(test_buf)
  125.     }
  126. };
  127. static cmd_info_t test_info = {
  128.     .name = "test",
  129.     .description = "Run kernel test.",
  130.     .func = cmd_test,
  131.     .argc = 1,
  132.     .argv = test_argv
  133. };
  134.  
  135. static int cmd_bench(cmd_arg_t *argv);
  136. static cmd_arg_t bench_argv[] = {
  137.     {
  138.         .type = ARG_TYPE_STRING,
  139.         .buffer = test_buf,
  140.         .len = sizeof(test_buf)
  141.     },
  142.     {
  143.         .type = ARG_TYPE_INT,
  144.     }
  145. };
  146. static cmd_info_t bench_info = {
  147.     .name = "bench",
  148.     .description = "Run kernel test as benchmark.",
  149.     .func = cmd_bench,
  150.     .argc = 2,
  151.     .argv = bench_argv
  152. };
  153. #endif
  154.  
  155. /* Data and methods for 'description' command. */
  156. static int cmd_desc(cmd_arg_t *argv);
  157. static void desc_help(void);
  158. static char desc_buf[MAX_CMDLINE+1];
  159. static cmd_arg_t desc_argv = {
  160.     .type = ARG_TYPE_STRING,
  161.     .buffer = desc_buf,
  162.     .len = sizeof(desc_buf)
  163. };
  164. static cmd_info_t desc_info = {
  165.     .name = "describe",
  166.     .description = "Describe specified command.",
  167.     .help = desc_help,
  168.     .func = cmd_desc,
  169.     .argc = 1,
  170.     .argv = &desc_argv
  171. };
  172.  
  173. #ifdef CONFIG_SYMTAB
  174. /* Data and methods for 'symaddr' command. */
  175. static int cmd_symaddr(cmd_arg_t *argv);
  176. static char symaddr_buf[MAX_CMDLINE+1];
  177. static cmd_arg_t symaddr_argv = {
  178.     .type = ARG_TYPE_STRING,
  179.     .buffer = symaddr_buf,
  180.     .len = sizeof(symaddr_buf)
  181. };
  182. static cmd_info_t symaddr_info = {
  183.     .name = "symaddr",
  184.     .description = "Return symbol address.",
  185.     .func = cmd_symaddr,
  186.     .argc = 1,
  187.     .argv = &symaddr_argv
  188. };
  189. #endif
  190.  
  191. static char set_buf[MAX_CMDLINE+1];
  192. static int cmd_set4(cmd_arg_t *argv);
  193. static cmd_arg_t set4_argv[] = {
  194.     {
  195.         .type = ARG_TYPE_STRING,
  196.         .buffer = set_buf,
  197.         .len = sizeof(set_buf)
  198.     },
  199.     {
  200.         .type = ARG_TYPE_INT
  201.     }
  202. };
  203. static cmd_info_t set4_info = {
  204.     .name = "set4",
  205.     .description = "set <dest_addr> <value> - 4byte version",
  206.     .func = cmd_set4,
  207.     .argc = 2,
  208.     .argv = set4_argv
  209. };
  210.  
  211. /* Data and methods for 'call0' command. */
  212. static char call0_buf[MAX_CMDLINE + 1];
  213. static char carg1_buf[MAX_CMDLINE + 1];
  214. static char carg2_buf[MAX_CMDLINE + 1];
  215. static char carg3_buf[MAX_CMDLINE + 1];
  216.  
  217. static int cmd_call0(cmd_arg_t *argv);
  218. static cmd_arg_t call0_argv = {
  219.     .type = ARG_TYPE_STRING,
  220.     .buffer = call0_buf,
  221.     .len = sizeof(call0_buf)
  222. };
  223. static cmd_info_t call0_info = {
  224.     .name = "call0",
  225.     .description = "call0 <function> -> call function().",
  226.     .func = cmd_call0,
  227.     .argc = 1,
  228.     .argv = &call0_argv
  229. };
  230.  
  231. /* Data and methods for 'mcall0' command. */
  232. static int cmd_mcall0(cmd_arg_t *argv);
  233. static cmd_arg_t mcall0_argv = {
  234.     .type = ARG_TYPE_STRING,
  235.     .buffer = call0_buf,
  236.     .len = sizeof(call0_buf)
  237. };
  238. static cmd_info_t mcall0_info = {
  239.     .name = "mcall0",
  240.     .description = "mcall0 <function> -> call function() on each CPU.",
  241.     .func = cmd_mcall0,
  242.     .argc = 1,
  243.     .argv = &mcall0_argv
  244. };
  245.  
  246. /* Data and methods for 'call1' command. */
  247. static int cmd_call1(cmd_arg_t *argv);
  248. static cmd_arg_t call1_argv[] = {
  249.     {
  250.         .type = ARG_TYPE_STRING,
  251.         .buffer = call0_buf,
  252.         .len = sizeof(call0_buf)
  253.     },
  254.     {
  255.         .type = ARG_TYPE_VAR,
  256.         .buffer = carg1_buf,
  257.         .len = sizeof(carg1_buf)
  258.     }
  259. };
  260. static cmd_info_t call1_info = {
  261.     .name = "call1",
  262.     .description = "call1 <function> <arg1> -> call function(arg1).",
  263.     .func = cmd_call1,
  264.     .argc = 2,
  265.     .argv = call1_argv
  266. };
  267.  
  268. /* Data and methods for 'call2' command. */
  269. static int cmd_call2(cmd_arg_t *argv);
  270. static cmd_arg_t call2_argv[] = {
  271.     {
  272.         .type = ARG_TYPE_STRING,
  273.         .buffer = call0_buf,
  274.         .len = sizeof(call0_buf)
  275.     },
  276.     {
  277.         .type = ARG_TYPE_VAR,
  278.         .buffer = carg1_buf,
  279.         .len = sizeof(carg1_buf)
  280.     },
  281.     {
  282.         .type = ARG_TYPE_VAR,
  283.         .buffer = carg2_buf,
  284.         .len = sizeof(carg2_buf)
  285.     }
  286. };
  287. static cmd_info_t call2_info = {
  288.     .name = "call2",
  289.     .description = "call2 <function> <arg1> <arg2> -> call function(arg1,arg2).",
  290.     .func = cmd_call2,
  291.     .argc = 3,
  292.     .argv = call2_argv
  293. };
  294.  
  295. /* Data and methods for 'call3' command. */
  296. static int cmd_call3(cmd_arg_t *argv);
  297. static cmd_arg_t call3_argv[] = {
  298.     {
  299.         .type = ARG_TYPE_STRING,
  300.         .buffer = call0_buf,
  301.         .len = sizeof(call0_buf)
  302.     },
  303.     {
  304.         .type = ARG_TYPE_VAR,
  305.         .buffer = carg1_buf,
  306.         .len = sizeof(carg1_buf)
  307.     },
  308.     {
  309.         .type = ARG_TYPE_VAR,
  310.         .buffer = carg2_buf,
  311.         .len = sizeof(carg2_buf)
  312.     },
  313.     {
  314.         .type = ARG_TYPE_VAR,
  315.         .buffer = carg3_buf,
  316.         .len = sizeof(carg3_buf)
  317.     }
  318.  
  319. };
  320. static cmd_info_t call3_info = {
  321.     .name = "call3",
  322.     .description = "call3 <function> <arg1> <arg2> <arg3> -> call function(arg1,arg2,arg3).",
  323.     .func = cmd_call3,
  324.     .argc = 4,
  325.     .argv = call3_argv
  326. };
  327.  
  328. /* Data and methods for 'halt' command. */
  329. static int cmd_halt(cmd_arg_t *argv);
  330. static cmd_info_t halt_info = {
  331.     .name = "halt",
  332.     .description = "Halt the kernel.",
  333.     .func = cmd_halt,
  334.     .argc = 0
  335. };
  336.  
  337. /* Data and methods for 'physmem' command. */
  338. static int cmd_physmem(cmd_arg_t *argv);
  339. cmd_info_t physmem_info = {
  340.     .name = "physmem",
  341.     .description = "Print physical memory configuration.",
  342.     .help = NULL,
  343.     .func = cmd_physmem,
  344.     .argc = 0,
  345.     .argv = NULL
  346. };
  347.  
  348. /* Data and methods for 'tlb' command. */
  349. static int cmd_tlb(cmd_arg_t *argv);
  350. cmd_info_t tlb_info = {
  351.     .name = "tlb",
  352.     .description = "Print TLB of current processor.",
  353.     .help = NULL,
  354.     .func = cmd_tlb,
  355.     .argc = 0,
  356.     .argv = NULL
  357. };
  358.  
  359. static int cmd_threads(cmd_arg_t *argv);
  360. static cmd_info_t threads_info = {
  361.     .name = "threads",
  362.     .description = "List all threads.",
  363.     .func = cmd_threads,
  364.     .argc = 0
  365. };
  366.  
  367. static int cmd_tasks(cmd_arg_t *argv);
  368. static cmd_info_t tasks_info = {
  369.     .name = "tasks",
  370.     .description = "List all tasks.",
  371.     .func = cmd_tasks,
  372.     .argc = 0
  373. };
  374.  
  375.  
  376. static int cmd_sched(cmd_arg_t *argv);
  377. static cmd_info_t sched_info = {
  378.     .name = "scheduler",
  379.     .description = "List all scheduler information.",
  380.     .func = cmd_sched,
  381.     .argc = 0
  382. };
  383.  
  384. static int cmd_slabs(cmd_arg_t *argv);
  385. static cmd_info_t slabs_info = {
  386.     .name = "slabs",
  387.     .description = "List slab caches.",
  388.     .func = cmd_slabs,
  389.     .argc = 0
  390. };
  391.  
  392. /* Data and methods for 'zones' command */
  393. static int cmd_zones(cmd_arg_t *argv);
  394. static cmd_info_t zones_info = {
  395.     .name = "zones",
  396.     .description = "List of memory zones.",
  397.     .func = cmd_zones,
  398.     .argc = 0
  399. };
  400.  
  401. /* Data and methods for 'ipc' command */
  402. static int cmd_ipc(cmd_arg_t *argv);
  403. static cmd_arg_t ipc_argv = {
  404.     .type = ARG_TYPE_INT,
  405. };
  406. static cmd_info_t ipc_info = {
  407.     .name = "ipc",
  408.     .description = "ipc <taskid> Show IPC information of given task.",
  409.     .func = cmd_ipc,
  410.     .argc = 1,
  411.     .argv = &ipc_argv
  412. };
  413.  
  414. /* Data and methods for 'zone' command */
  415. static int cmd_zone(cmd_arg_t *argv);
  416. static cmd_arg_t zone_argv = {
  417.     .type = ARG_TYPE_INT,
  418. };
  419.  
  420. static cmd_info_t zone_info = {
  421.     .name = "zone",
  422.     .description = "Show memory zone structure.",
  423.     .func = cmd_zone,
  424.     .argc = 1,
  425.     .argv = &zone_argv
  426. };
  427.  
  428. /* Data and methods for 'cpus' command. */
  429. static int cmd_cpus(cmd_arg_t *argv);
  430. cmd_info_t cpus_info = {
  431.     .name = "cpus",
  432.     .description = "List all processors.",
  433.     .help = NULL,
  434.     .func = cmd_cpus,
  435.     .argc = 0,
  436.     .argv = NULL
  437. };
  438.  
  439. /* Data and methods for 'version' command. */
  440. static int cmd_version(cmd_arg_t *argv);
  441. cmd_info_t version_info = {
  442.     .name = "version",
  443.     .description = "Print version information.",
  444.     .help = NULL,
  445.     .func = cmd_version,
  446.     .argc = 0,
  447.     .argv = NULL
  448. };
  449.  
  450. static cmd_info_t *basic_commands[] = {
  451.     &call0_info,
  452.     &mcall0_info,
  453.     &call1_info,
  454.     &call2_info,
  455.     &call3_info,
  456.     &continue_info,
  457.     &cpus_info,
  458.     &desc_info,
  459.     &reboot_info,
  460.     &uptime_info,
  461.     &halt_info,
  462.     &help_info,
  463.     &ipc_info,
  464.     &set4_info,
  465.     &slabs_info,
  466. #ifdef CONFIG_SYMTAB
  467.     &symaddr_info,
  468. #endif
  469.     &sched_info,
  470.     &threads_info,
  471.     &tasks_info,
  472.     &physmem_info,
  473.     &tlb_info,
  474.     &version_info,
  475.     &zones_info,
  476.     &zone_info,
  477. #ifdef CONFIG_TEST
  478.     &tests_info,
  479.     &test_info,
  480.     &bench_info,
  481. #endif
  482.     NULL
  483. };
  484.  
  485.  
  486. /** Initialize command info structure.
  487.  *
  488.  * @param cmd Command info structure.
  489.  *
  490.  */
  491. void cmd_initialize(cmd_info_t *cmd)
  492. {
  493.     spinlock_initialize(&cmd->lock, "cmd");
  494.     link_initialize(&cmd->link);
  495. }
  496.  
  497. /** Initialize and register commands. */
  498. void cmd_init(void)
  499. {
  500.     unsigned int i;
  501.  
  502.     for (i = 0; basic_commands[i]; i++) {
  503.         cmd_initialize(basic_commands[i]);
  504.         if (!cmd_register(basic_commands[i]))
  505.             printf("Cannot register command %s\n", basic_commands[i]->name);
  506.     }
  507. }
  508.  
  509.  
  510. /** List supported commands.
  511.  *
  512.  * @param argv Argument vector.
  513.  *
  514.  * @return 0 on failure, 1 on success.
  515.  */
  516. int cmd_help(cmd_arg_t *argv)
  517. {
  518.     spinlock_lock(&cmd_lock);
  519.    
  520.     link_t *cur;
  521.     size_t len = 0;
  522.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  523.         cmd_info_t *hlp;
  524.         hlp = list_get_instance(cur, cmd_info_t, link);
  525.        
  526.         spinlock_lock(&hlp->lock);
  527.         if (strlen(hlp->name) > len)
  528.             len = strlen(hlp->name);
  529.         spinlock_unlock(&hlp->lock);
  530.     }
  531.    
  532.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  533.         cmd_info_t *hlp;
  534.         hlp = list_get_instance(cur, cmd_info_t, link);
  535.        
  536.         spinlock_lock(&hlp->lock);
  537.         printf("%-*s %s\n", len, hlp->name, hlp->description);
  538.         spinlock_unlock(&hlp->lock);
  539.     }
  540.    
  541.     spinlock_unlock(&cmd_lock);
  542.    
  543.     return 1;
  544. }
  545.  
  546.  
  547. /** Reboot the system.
  548.  *
  549.  * @param argv Argument vector.
  550.  *
  551.  * @return 0 on failure, 1 on success.
  552.  */
  553. int cmd_reboot(cmd_arg_t *argv)
  554. {
  555.     reboot();
  556.    
  557.     /* Not reached */
  558.     return 1;
  559. }
  560.  
  561.  
  562. /** Print system uptime information.
  563.  *
  564.  * @param argv Argument vector.
  565.  *
  566.  * @return 0 on failure, 1 on success.
  567.  */
  568. int cmd_uptime(cmd_arg_t *argv)
  569. {
  570.     ASSERT(uptime);
  571.    
  572.     /* This doesn't have to be very accurate */
  573.     unative_t sec = uptime->seconds1;
  574.    
  575.     printf("Up %" PRIun " days, %" PRIun " hours, %" PRIun " minutes, %" PRIun " seconds\n",
  576.         sec / 86400, (sec % 86400) / 3600, (sec % 3600) / 60, sec % 60);
  577.    
  578.     return 1;
  579. }
  580.  
  581. /** Describe specified command.
  582.  *
  583.  * @param argv Argument vector.
  584.  *
  585.  * @return 0 on failure, 1 on success.
  586.  */
  587. int cmd_desc(cmd_arg_t *argv)
  588. {
  589.     link_t *cur;
  590.  
  591.     spinlock_lock(&cmd_lock);
  592.    
  593.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  594.         cmd_info_t *hlp;
  595.        
  596.         hlp = list_get_instance(cur, cmd_info_t, link);
  597.         spinlock_lock(&hlp->lock);
  598.  
  599.         if (strncmp(hlp->name, (const char *) argv->buffer, strlen(hlp->name)) == 0) {
  600.             printf("%s - %s\n", hlp->name, hlp->description);
  601.             if (hlp->help)
  602.                 hlp->help();
  603.             spinlock_unlock(&hlp->lock);
  604.             break;
  605.         }
  606.  
  607.         spinlock_unlock(&hlp->lock);
  608.     }
  609.    
  610.     spinlock_unlock(&cmd_lock);
  611.  
  612.     return 1;
  613. }
  614.  
  615. #ifdef CONFIG_SYMTAB
  616.  
  617. /** Search symbol table */
  618. int cmd_symaddr(cmd_arg_t *argv)
  619. {
  620.     symtab_print_search((char *) argv->buffer);
  621.    
  622.     return 1;
  623. }
  624.  
  625. #endif
  626.  
  627. /** Call function with zero parameters */
  628. int cmd_call0(cmd_arg_t *argv)
  629. {
  630. #ifdef CONFIG_SYMTAB
  631.     uintptr_t symaddr;
  632.     unative_t (*fnc)(void);
  633.     fncptr_t fptr;
  634.  
  635.     symaddr = get_symbol_addr((char *) argv->buffer);
  636.     if (!symaddr)
  637.         printf("Symbol %s not found.\n", argv->buffer);
  638.     else if (symaddr == (uintptr_t) -1) {
  639.         symtab_print_search((char *) argv->buffer);
  640.         printf("Duplicate symbol, be more specific.\n");
  641.     } else {
  642.         fnc = (unative_t (*)(void)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call0);
  643.         printf("Calling %s() (%p)\n", argv->buffer, symaddr);
  644.         printf("Result: %#" PRIxn "\n", fnc());
  645.     }
  646. #endif
  647.     return 1;
  648. }
  649.  
  650. /** Call function with zero parameters on each CPU */
  651. int cmd_mcall0(cmd_arg_t *argv)
  652. {
  653.     /*
  654.      * For each CPU, create a thread which will
  655.      * call the function.
  656.      */
  657.    
  658.     count_t i;
  659.     for (i = 0; i < config.cpu_count; i++) {
  660.         if (!cpus[i].active)
  661.             continue;
  662.        
  663.         thread_t *t;
  664.         if ((t = thread_create((void (*)(void *)) cmd_call0, (void *) argv, TASK, THREAD_FLAG_WIRED, "call0", false))) {
  665.             spinlock_lock(&t->lock);
  666.             t->cpu = &cpus[i];
  667.             spinlock_unlock(&t->lock);
  668.             printf("cpu%u: ", i);
  669.             thread_ready(t);
  670.             thread_join(t);
  671.             thread_detach(t);
  672.         } else
  673.             printf("Unable to create thread for cpu%u\n", i);
  674.     }
  675.    
  676.     return 1;
  677. }
  678.  
  679. /** Call function with one parameter */
  680. int cmd_call1(cmd_arg_t *argv)
  681. {
  682. #ifdef CONFIG_SYMTAB
  683.     uintptr_t symaddr;
  684.     char *symbol;
  685.     unative_t (*fnc)(unative_t, ...);
  686.     unative_t arg1 = argv[1].intval;
  687.     fncptr_t fptr;
  688.    
  689.     symaddr = get_symbol_addr((char *) argv->buffer);
  690.  
  691.     if (!symaddr)
  692.         printf("Symbol %s not found.\n", argv->buffer);
  693.     else if (symaddr == (uintptr_t) -1) {
  694.         symtab_print_search((char *) argv->buffer);
  695.         printf("Duplicate symbol, be more specific.\n");
  696.     } else {
  697.         symbol = get_symtab_entry(symaddr);
  698.         fnc = (unative_t (*)(unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call1);
  699.         printf("Calling f(%#" PRIxn "): %p: %s\n", arg1, symaddr, symbol);
  700.         printf("Result: %#" PRIxn "\n", fnc(arg1));
  701.     }
  702. #endif
  703.     return 1;
  704. }
  705.  
  706. /** Call function with two parameters */
  707. int cmd_call2(cmd_arg_t *argv)
  708. {
  709. #ifdef CONFIG_SYMTAB
  710.     uintptr_t symaddr;
  711.     char *symbol;
  712.     unative_t (*fnc)(unative_t, unative_t, ...);
  713.     unative_t arg1 = argv[1].intval;
  714.     unative_t arg2 = argv[2].intval;
  715.     fncptr_t fptr;
  716.    
  717.     symaddr = get_symbol_addr((char *) argv->buffer);
  718.     if (!symaddr)
  719.         printf("Symbol %s not found.\n", argv->buffer);
  720.     else if (symaddr == (uintptr_t) -1) {
  721.         symtab_print_search((char *) argv->buffer);
  722.         printf("Duplicate symbol, be more specific.\n");
  723.     } else {
  724.         symbol = get_symtab_entry(symaddr);
  725.         fnc = (unative_t (*)(unative_t, unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call2);
  726.         printf("Calling f(%#" PRIxn ", %#" PRIxn "): %p: %s\n",
  727.                arg1, arg2, symaddr, symbol);
  728.         printf("Result: %#" PRIxn "\n", fnc(arg1, arg2));
  729.     }  
  730. #endif
  731.     return 1;
  732. }
  733.  
  734. /** Call function with three parameters */
  735. int cmd_call3(cmd_arg_t *argv)
  736. {
  737. #ifdef CONFIG_SYMTAB
  738.     uintptr_t symaddr;
  739.     char *symbol;
  740.     unative_t (*fnc)(unative_t, unative_t, unative_t, ...);
  741.     unative_t arg1 = argv[1].intval;
  742.     unative_t arg2 = argv[2].intval;
  743.     unative_t arg3 = argv[3].intval;
  744.     fncptr_t fptr;
  745.    
  746.     symaddr = get_symbol_addr((char *) argv->buffer);
  747.     if (!symaddr)
  748.         printf("Symbol %s not found.\n", argv->buffer);
  749.     else if (symaddr == (uintptr_t) -1) {
  750.         symtab_print_search((char *) argv->buffer);
  751.         printf("Duplicate symbol, be more specific.\n");
  752.     } else {
  753.         symbol = get_symtab_entry(symaddr);
  754.         fnc = (unative_t (*)(unative_t, unative_t, unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call3);
  755.         printf("Calling f(%#" PRIxn ",%#" PRIxn ", %#" PRIxn "): %p: %s\n",
  756.                arg1, arg2, arg3, symaddr, symbol);
  757.         printf("Result: %#" PRIxn "\n", fnc(arg1, arg2, arg3));
  758.     }
  759. #endif
  760.     return 1;
  761. }
  762.  
  763.  
  764. /** Print detailed description of 'describe' command. */
  765. void desc_help(void)
  766. {
  767.     printf("Syntax: describe command_name\n");
  768. }
  769.  
  770. /** Halt the kernel.
  771.  *
  772.  * @param argv Argument vector (ignored).
  773.  *
  774.  * @return 0 on failure, 1 on success (never returns).
  775.  */
  776. int cmd_halt(cmd_arg_t *argv)
  777. {
  778.     halt();
  779.     return 1;
  780. }
  781.  
  782. /** Command for printing TLB contents.
  783.  *
  784.  * @param argv Not used.
  785.  *
  786.  * @return Always returns 1.
  787.  */
  788. int cmd_tlb(cmd_arg_t *argv)
  789. {
  790.     tlb_print();
  791.     return 1;
  792. }
  793.  
  794. /** Command for printing physical memory configuration.
  795.  *
  796.  * @param argv Not used.
  797.  *
  798.  * @return Always returns 1.
  799.  */
  800. int cmd_physmem(cmd_arg_t *argv)
  801. {
  802.     physmem_print();
  803.     return 1;
  804. }
  805.  
  806. /** Write 4 byte value to address */
  807. int cmd_set4(cmd_arg_t *argv)
  808. {
  809.     uint32_t *addr;
  810.     uint32_t arg1 = argv[1].intval;
  811.     bool pointer = false;
  812.  
  813.     if (((char *)argv->buffer)[0] == '*') {
  814. #ifdef CONFIG_SYMTAB
  815.         addr = (uint32_t *) get_symbol_addr((char *) argv->buffer + 1);
  816. #else
  817.         addr = 0;
  818. #endif
  819.         pointer = true;
  820.     } else if (((char *) argv->buffer)[0] >= '0' &&
  821.            ((char *)argv->buffer)[0] <= '9') {
  822.         addr = (uint32_t *)atoi((char *)argv->buffer);
  823.     } else {
  824. #ifdef CONFIG_SYMTAB
  825.         addr = (uint32_t *)get_symbol_addr((char *) argv->buffer);
  826. #else
  827.         addr = 0;
  828. #endif
  829.     }
  830.  
  831.     if (!addr)
  832.         printf("Symbol %s not found.\n", argv->buffer);
  833.     else if (addr == (uint32_t *) -1) {
  834. #ifdef CONFIG_SYMTAB
  835.         symtab_print_search((char *) argv->buffer);
  836. #endif
  837.         printf("Duplicate symbol, be more specific.\n");
  838.     } else {
  839.         if (pointer)
  840.             addr = (uint32_t *)(*(unative_t *)addr);
  841.         printf("Writing %#" PRIx64 " -> %p\n", arg1, addr);
  842.         *addr = arg1;
  843.        
  844.     }
  845.    
  846.     return 1;
  847. }
  848.  
  849. /** Command for listings SLAB caches
  850.  *
  851.  * @param argv Ignores
  852.  *
  853.  * @return Always 1
  854.  */
  855. int cmd_slabs(cmd_arg_t * argv) {
  856.     slab_print_list();
  857.     return 1;
  858. }
  859.  
  860.  
  861. /** Command for listings Thread information
  862.  *
  863.  * @param argv Ignores
  864.  *
  865.  * @return Always 1
  866.  */
  867. int cmd_threads(cmd_arg_t * argv) {
  868.     thread_print_list();
  869.     return 1;
  870. }
  871.  
  872. /** Command for listings Task information
  873.  *
  874.  * @param argv Ignores
  875.  *
  876.  * @return Always 1
  877.  */
  878. int cmd_tasks(cmd_arg_t * argv) {
  879.     task_print_list();
  880.     return 1;
  881. }
  882.  
  883. /** Command for listings Thread information
  884.  *
  885.  * @param argv Ignores
  886.  *
  887.  * @return Always 1
  888.  */
  889. int cmd_sched(cmd_arg_t * argv) {
  890.     sched_print_list();
  891.     return 1;
  892. }
  893.  
  894. /** Command for listing memory zones
  895.  *
  896.  * @param argv Ignored
  897.  *
  898.  * return Always 1
  899.  */
  900. int cmd_zones(cmd_arg_t * argv) {
  901.     zone_print_list();
  902.     return 1;
  903. }
  904.  
  905. /** Command for memory zone details
  906.  *
  907.  * @param argv Integer argument from cmdline expected
  908.  *
  909.  * return Always 1
  910.  */
  911. int cmd_zone(cmd_arg_t * argv) {
  912.     zone_print_one(argv[0].intval);
  913.     return 1;
  914. }
  915.  
  916. /** Command for printing task ipc details
  917.  *
  918.  * @param argv Integer argument from cmdline expected
  919.  *
  920.  * return Always 1
  921.  */
  922. int cmd_ipc(cmd_arg_t * argv) {
  923.     ipc_print_task(argv[0].intval);
  924.     return 1;
  925. }
  926.  
  927.  
  928. /** Command for listing processors.
  929.  *
  930.  * @param argv Ignored.
  931.  *
  932.  * return Always 1.
  933.  */
  934. int cmd_cpus(cmd_arg_t *argv)
  935. {
  936.     cpu_list();
  937.     return 1;
  938. }
  939.  
  940. /** Command for printing kernel version.
  941.  *
  942.  * @param argv Ignored.
  943.  *
  944.  * return Always 1.
  945.  */
  946. int cmd_version(cmd_arg_t *argv)
  947. {
  948.     version_print();
  949.     return 1;
  950. }
  951.  
  952. /** Command for returning console back to userspace.
  953.  *
  954.  * @param argv Ignored.
  955.  *
  956.  * return Always 1.
  957.  */
  958. int cmd_continue(cmd_arg_t *argv)
  959. {
  960.     printf("The kernel will now relinquish the console.\n");
  961.     release_console();
  962.    
  963.     if ((kconsole_notify) && (kconsole_irq.notif_cfg.notify))
  964.         ipc_irq_send_msg_0(&kconsole_irq);
  965.    
  966.     return 1;
  967. }
  968.  
  969. #ifdef CONFIG_TEST
  970. /** Command for printing kernel tests list.
  971.  *
  972.  * @param argv Ignored.
  973.  *
  974.  * return Always 1.
  975.  */
  976. int cmd_tests(cmd_arg_t *argv)
  977. {
  978.     size_t len = 0;
  979.     test_t *test;
  980.     for (test = tests; test->name != NULL; test++) {
  981.         if (strlen(test->name) > len)
  982.             len = strlen(test->name);
  983.     }
  984.    
  985.     for (test = tests; test->name != NULL; test++)
  986.         printf("%-*s %s%s\n", len, test->name, test->desc, (test->safe ? "" : " (unsafe)"));
  987.    
  988.     printf("%-*s Run all safe tests\n", len, "*");
  989.     return 1;
  990. }
  991.  
  992. static bool run_test(const test_t *test)
  993. {
  994.     printf("%s (%s)\n", test->name, test->desc);
  995.    
  996.     /* Update and read thread accounting
  997.        for benchmarking */
  998.     ipl_t ipl = interrupts_disable();
  999.     spinlock_lock(&TASK->lock);
  1000.     uint64_t t0 = task_get_accounting(TASK);
  1001.     spinlock_unlock(&TASK->lock);
  1002.     interrupts_restore(ipl);
  1003.    
  1004.     /* Execute the test */
  1005.     char * ret = test->entry(false);
  1006.    
  1007.     /* Update and read thread accounting */
  1008.     ipl = interrupts_disable();
  1009.     spinlock_lock(&TASK->lock);
  1010.     uint64_t dt = task_get_accounting(TASK) - t0;
  1011.     spinlock_unlock(&TASK->lock);
  1012.     interrupts_restore(ipl);
  1013.    
  1014.     uint64_t cycles;
  1015.     char suffix;
  1016.     order(dt, &cycles, &suffix);
  1017.        
  1018.     printf("Time: %" PRIu64 "%c cycles\n", cycles, suffix);
  1019.    
  1020.     if (ret == NULL) {
  1021.         printf("Test passed\n");
  1022.         return true;
  1023.     }
  1024.  
  1025.     printf("%s\n", ret);
  1026.     return false;
  1027. }
  1028.  
  1029. static bool run_bench(const test_t *test, const uint32_t cnt)
  1030. {
  1031.     uint32_t i;
  1032.     bool ret = true;
  1033.     uint64_t cycles;
  1034.     char suffix;
  1035.    
  1036.     if (cnt < 1)
  1037.         return true;
  1038.    
  1039.     uint64_t *data = (uint64_t *) malloc(sizeof(uint64_t) * cnt, 0);
  1040.     if (data == NULL) {
  1041.         printf("Error allocating memory for statistics\n");
  1042.         return false;
  1043.     }
  1044.    
  1045.     for (i = 0; i < cnt; i++) {
  1046.         printf("%s (%u/%u) ... ", test->name, i + 1, cnt);
  1047.        
  1048.         /* Update and read thread accounting
  1049.            for benchmarking */
  1050.         ipl_t ipl = interrupts_disable();
  1051.         spinlock_lock(&TASK->lock);
  1052.         uint64_t t0 = task_get_accounting(TASK);
  1053.         spinlock_unlock(&TASK->lock);
  1054.         interrupts_restore(ipl);
  1055.        
  1056.         /* Execute the test */
  1057.         char * ret = test->entry(true);
  1058.        
  1059.         /* Update and read thread accounting */
  1060.         ipl = interrupts_disable();
  1061.         spinlock_lock(&TASK->lock);
  1062.         uint64_t dt = task_get_accounting(TASK) - t0;
  1063.         spinlock_unlock(&TASK->lock);
  1064.         interrupts_restore(ipl);
  1065.        
  1066.         if (ret != NULL) {
  1067.             printf("%s\n", ret);
  1068.             ret = false;
  1069.             break;
  1070.         }
  1071.        
  1072.         data[i] = dt;
  1073.         order(dt, &cycles, &suffix);
  1074.         printf("OK (%" PRIu64 "%c cycles)\n", cycles, suffix);
  1075.     }
  1076.    
  1077.     if (ret) {
  1078.         printf("\n");
  1079.        
  1080.         uint64_t sum = 0;
  1081.        
  1082.         for (i = 0; i < cnt; i++) {
  1083.             sum += data[i];
  1084.         }
  1085.        
  1086.         order(sum / (uint64_t) cnt, &cycles, &suffix);
  1087.         printf("Average\t\t%" PRIu64 "%c\n", cycles, suffix);
  1088.     }
  1089.    
  1090.     free(data);
  1091.    
  1092.     return ret;
  1093. }
  1094.  
  1095. /** Command for returning kernel tests
  1096.  *
  1097.  * @param argv Argument vector.
  1098.  *
  1099.  * return Always 1.
  1100.  */
  1101. int cmd_test(cmd_arg_t *argv)
  1102. {
  1103.     test_t *test;
  1104.    
  1105.     if (strcmp((char *) argv->buffer, "*") == 0) {
  1106.         for (test = tests; test->name != NULL; test++) {
  1107.             if (test->safe) {
  1108.                 printf("\n");
  1109.                 if (!run_test(test))
  1110.                     break;
  1111.             }
  1112.         }
  1113.     } else {
  1114.         bool fnd = false;
  1115.        
  1116.         for (test = tests; test->name != NULL; test++) {
  1117.             if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1118.                 fnd = true;
  1119.                 run_test(test);
  1120.                 break;
  1121.             }
  1122.         }
  1123.        
  1124.         if (!fnd)
  1125.             printf("Unknown test\n");
  1126.     }
  1127.    
  1128.     return 1;
  1129. }
  1130.  
  1131. /** Command for returning kernel tests as benchmarks
  1132.  *
  1133.  * @param argv Argument vector.
  1134.  *
  1135.  * return Always 1.
  1136.  */
  1137. int cmd_bench(cmd_arg_t *argv)
  1138. {
  1139.     test_t *test;
  1140.     uint32_t cnt = argv[1].intval;
  1141.    
  1142.     bool fnd = false;
  1143.    
  1144.     for (test = tests; test->name != NULL; test++) {
  1145.         if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1146.             fnd = true;
  1147.            
  1148.             if (test->safe)
  1149.                 run_bench(test, cnt);
  1150.             else
  1151.                 printf("Unsafe test\n");
  1152.            
  1153.             break;
  1154.         }
  1155.     }
  1156.        
  1157.     if (!fnd)
  1158.         printf("Unknown test\n");
  1159.  
  1160.     return 1;
  1161. }
  1162.  
  1163. #endif
  1164.  
  1165. /** @}
  1166.  */
  1167.