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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 <macros.h>
  54. #include <debug.h>
  55. #include <symtab.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_TEST
  69. #include <test.h>
  70. #endif
  71.  
  72. /* Data and methods for 'help' command. */
  73. static int cmd_help(cmd_arg_t *argv);
  74. static cmd_info_t help_info = {
  75.     .name = "help",
  76.     .description = "List of supported commands.",
  77.     .func = cmd_help,
  78.     .argc = 0
  79. };
  80.  
  81. static cmd_info_t exit_info = {
  82.     .name = "exit",
  83.     .description = "Exit kconsole.",
  84.     .argc = 0
  85. };
  86.  
  87. static int cmd_reboot(cmd_arg_t *argv);
  88. static cmd_info_t reboot_info = {
  89.     .name = "reboot",
  90.     .description = "Reboot.",
  91.     .func = cmd_reboot,
  92.     .argc = 0
  93. };
  94.  
  95. static int cmd_continue(cmd_arg_t *argv);
  96. static cmd_info_t continue_info = {
  97.     .name = "continue",
  98.     .description = "Return console back to userspace.",
  99.     .func = cmd_continue,
  100.     .argc = 0
  101. };
  102.  
  103. #ifdef CONFIG_TEST
  104. static int cmd_tests(cmd_arg_t *argv);
  105. static cmd_info_t tests_info = {
  106.     .name = "tests",
  107.     .description = "Print available kernel tests.",
  108.     .func = cmd_tests,
  109.     .argc = 0
  110. };
  111.  
  112. static char test_buf[MAX_CMDLINE + 1];
  113. static int cmd_test(cmd_arg_t *argv);
  114. static cmd_arg_t test_argv[] = {
  115.     {
  116.         .type = ARG_TYPE_STRING,
  117.         .buffer = test_buf,
  118.         .len = sizeof(test_buf)
  119.     }
  120. };
  121. static cmd_info_t test_info = {
  122.     .name = "test",
  123.     .description = "Run kernel test.",
  124.     .func = cmd_test,
  125.     .argc = 1,
  126.     .argv = test_argv
  127. };
  128.  
  129. static int cmd_bench(cmd_arg_t *argv);
  130. static cmd_arg_t bench_argv[] = {
  131.     {
  132.         .type = ARG_TYPE_STRING,
  133.         .buffer = test_buf,
  134.         .len = sizeof(test_buf)
  135.     },
  136.     {
  137.         .type = ARG_TYPE_INT,
  138.     }
  139. };
  140. static cmd_info_t bench_info = {
  141.     .name = "bench",
  142.     .description = "Run kernel test as benchmark.",
  143.     .func = cmd_bench,
  144.     .argc = 2,
  145.     .argv = bench_argv
  146. };
  147. #endif
  148.  
  149. /* Data and methods for 'description' command. */
  150. static int cmd_desc(cmd_arg_t *argv);
  151. static void desc_help(void);
  152. static char desc_buf[MAX_CMDLINE+1];
  153. static cmd_arg_t desc_argv = {
  154.     .type = ARG_TYPE_STRING,
  155.     .buffer = desc_buf,
  156.     .len = sizeof(desc_buf)
  157. };
  158. static cmd_info_t desc_info = {
  159.     .name = "describe",
  160.     .description = "Describe specified command.",
  161.     .help = desc_help,
  162.     .func = cmd_desc,
  163.     .argc = 1,
  164.     .argv = &desc_argv
  165. };
  166.  
  167. /* Data and methods for 'symaddr' command. */
  168. static int cmd_symaddr(cmd_arg_t *argv);
  169. static char symaddr_buf[MAX_CMDLINE+1];
  170. static cmd_arg_t symaddr_argv = {
  171.     .type = ARG_TYPE_STRING,
  172.     .buffer = symaddr_buf,
  173.     .len = sizeof(symaddr_buf)
  174. };
  175. static cmd_info_t symaddr_info = {
  176.     .name = "symaddr",
  177.     .description = "Return symbol address.",
  178.     .func = cmd_symaddr,
  179.     .argc = 1,
  180.     .argv = &symaddr_argv
  181. };
  182.  
  183. static char set_buf[MAX_CMDLINE+1];
  184. static int cmd_set4(cmd_arg_t *argv);
  185. static cmd_arg_t set4_argv[] = {
  186.     {
  187.         .type = ARG_TYPE_STRING,
  188.         .buffer = set_buf,
  189.         .len = sizeof(set_buf)
  190.     },
  191.     {
  192.         .type = ARG_TYPE_INT
  193.     }
  194. };
  195. static cmd_info_t set4_info = {
  196.     .name = "set4",
  197.     .description = "set <dest_addr> <value> - 4byte version",
  198.     .func = cmd_set4,
  199.     .argc = 2,
  200.     .argv = set4_argv
  201. };
  202.  
  203. /* Data and methods for 'call0' command. */
  204. static char call0_buf[MAX_CMDLINE + 1];
  205. static char carg1_buf[MAX_CMDLINE + 1];
  206. static char carg2_buf[MAX_CMDLINE + 1];
  207. static char carg3_buf[MAX_CMDLINE + 1];
  208.  
  209. static int cmd_call0(cmd_arg_t *argv);
  210. static cmd_arg_t call0_argv = {
  211.     .type = ARG_TYPE_STRING,
  212.     .buffer = call0_buf,
  213.     .len = sizeof(call0_buf)
  214. };
  215. static cmd_info_t call0_info = {
  216.     .name = "call0",
  217.     .description = "call0 <function> -> call function().",
  218.     .func = cmd_call0,
  219.     .argc = 1,
  220.     .argv = &call0_argv
  221. };
  222.  
  223. /* Data and methods for 'mcall0' command. */
  224. static int cmd_mcall0(cmd_arg_t *argv);
  225. static cmd_arg_t mcall0_argv = {
  226.     .type = ARG_TYPE_STRING,
  227.     .buffer = call0_buf,
  228.     .len = sizeof(call0_buf)
  229. };
  230. static cmd_info_t mcall0_info = {
  231.     .name = "mcall0",
  232.     .description = "mcall0 <function> -> call function() on each CPU.",
  233.     .func = cmd_mcall0,
  234.     .argc = 1,
  235.     .argv = &mcall0_argv
  236. };
  237.  
  238. /* Data and methods for 'call1' command. */
  239. static int cmd_call1(cmd_arg_t *argv);
  240. static cmd_arg_t call1_argv[] = {
  241.     {
  242.         .type = ARG_TYPE_STRING,
  243.         .buffer = call0_buf,
  244.         .len = sizeof(call0_buf)
  245.     },
  246.     {
  247.         .type = ARG_TYPE_VAR,
  248.         .buffer = carg1_buf,
  249.         .len = sizeof(carg1_buf)
  250.     }
  251. };
  252. static cmd_info_t call1_info = {
  253.     .name = "call1",
  254.     .description = "call1 <function> <arg1> -> call function(arg1).",
  255.     .func = cmd_call1,
  256.     .argc = 2,
  257.     .argv = call1_argv
  258. };
  259.  
  260. /* Data and methods for 'call2' command. */
  261. static int cmd_call2(cmd_arg_t *argv);
  262. static cmd_arg_t call2_argv[] = {
  263.     {
  264.         .type = ARG_TYPE_STRING,
  265.         .buffer = call0_buf,
  266.         .len = sizeof(call0_buf)
  267.     },
  268.     {
  269.         .type = ARG_TYPE_VAR,
  270.         .buffer = carg1_buf,
  271.         .len = sizeof(carg1_buf)
  272.     },
  273.     {
  274.         .type = ARG_TYPE_VAR,
  275.         .buffer = carg2_buf,
  276.         .len = sizeof(carg2_buf)
  277.     }
  278. };
  279. static cmd_info_t call2_info = {
  280.     .name = "call2",
  281.     .description = "call2 <function> <arg1> <arg2> -> call function(arg1,arg2).",
  282.     .func = cmd_call2,
  283.     .argc = 3,
  284.     .argv = call2_argv
  285. };
  286.  
  287. /* Data and methods for 'call3' command. */
  288. static int cmd_call3(cmd_arg_t *argv);
  289. static cmd_arg_t call3_argv[] = {
  290.     {
  291.         .type = ARG_TYPE_STRING,
  292.         .buffer = call0_buf,
  293.         .len = sizeof(call0_buf)
  294.     },
  295.     {
  296.         .type = ARG_TYPE_VAR,
  297.         .buffer = carg1_buf,
  298.         .len = sizeof(carg1_buf)
  299.     },
  300.     {
  301.         .type = ARG_TYPE_VAR,
  302.         .buffer = carg2_buf,
  303.         .len = sizeof(carg2_buf)
  304.     },
  305.     {
  306.         .type = ARG_TYPE_VAR,
  307.         .buffer = carg3_buf,
  308.         .len = sizeof(carg3_buf)
  309.     }
  310.  
  311. };
  312. static cmd_info_t call3_info = {
  313.     .name = "call3",
  314.     .description = "call3 <function> <arg1> <arg2> <arg3> -> call function(arg1,arg2,arg3).",
  315.     .func = cmd_call3,
  316.     .argc = 4,
  317.     .argv = call3_argv
  318. };
  319.  
  320. /* Data and methods for 'halt' command. */
  321. static int cmd_halt(cmd_arg_t *argv);
  322. static cmd_info_t halt_info = {
  323.     .name = "halt",
  324.     .description = "Halt the kernel.",
  325.     .func = cmd_halt,
  326.     .argc = 0
  327. };
  328.  
  329. /* Data and methods for 'tlb' command. */
  330. static int cmd_tlb(cmd_arg_t *argv);
  331. cmd_info_t tlb_info = {
  332.     .name = "tlb",
  333.     .description = "Print TLB of current processor.",
  334.     .help = NULL,
  335.     .func = cmd_tlb,
  336.     .argc = 0,
  337.     .argv = NULL
  338. };
  339.  
  340. static int cmd_threads(cmd_arg_t *argv);
  341. static cmd_info_t threads_info = {
  342.     .name = "threads",
  343.     .description = "List all threads.",
  344.     .func = cmd_threads,
  345.     .argc = 0
  346. };
  347.  
  348. static int cmd_tasks(cmd_arg_t *argv);
  349. static cmd_info_t tasks_info = {
  350.     .name = "tasks",
  351.     .description = "List all tasks.",
  352.     .func = cmd_tasks,
  353.     .argc = 0
  354. };
  355.  
  356.  
  357. static int cmd_sched(cmd_arg_t *argv);
  358. static cmd_info_t sched_info = {
  359.     .name = "scheduler",
  360.     .description = "List all scheduler information.",
  361.     .func = cmd_sched,
  362.     .argc = 0
  363. };
  364.  
  365. static int cmd_slabs(cmd_arg_t *argv);
  366. static cmd_info_t slabs_info = {
  367.     .name = "slabs",
  368.     .description = "List slab caches.",
  369.     .func = cmd_slabs,
  370.     .argc = 0
  371. };
  372.  
  373. /* Data and methods for 'zones' command */
  374. static int cmd_zones(cmd_arg_t *argv);
  375. static cmd_info_t zones_info = {
  376.     .name = "zones",
  377.     .description = "List of memory zones.",
  378.     .func = cmd_zones,
  379.     .argc = 0
  380. };
  381.  
  382. /* Data and methods for 'ipc_task' command */
  383. static int cmd_ipc_task(cmd_arg_t *argv);
  384. static cmd_arg_t ipc_task_argv = {
  385.     .type = ARG_TYPE_INT,
  386. };
  387. static cmd_info_t ipc_task_info = {
  388.     .name = "ipc_task",
  389.     .description = "ipc_task <taskid> Show IPC information of given task.",
  390.     .func = cmd_ipc_task,
  391.     .argc = 1,
  392.     .argv = &ipc_task_argv
  393. };
  394.  
  395. /* Data and methods for 'zone' command */
  396. static int cmd_zone(cmd_arg_t *argv);
  397. static cmd_arg_t zone_argv = {
  398.     .type = ARG_TYPE_INT,
  399. };
  400.  
  401. static cmd_info_t zone_info = {
  402.     .name = "zone",
  403.     .description = "Show memory zone structure.",
  404.     .func = cmd_zone,
  405.     .argc = 1,
  406.     .argv = &zone_argv
  407. };
  408.  
  409. /* Data and methods for 'cpus' command. */
  410. static int cmd_cpus(cmd_arg_t *argv);
  411. cmd_info_t cpus_info = {
  412.     .name = "cpus",
  413.     .description = "List all processors.",
  414.     .help = NULL,
  415.     .func = cmd_cpus,
  416.     .argc = 0,
  417.     .argv = NULL
  418. };
  419.  
  420. /* Data and methods for 'version' command. */
  421. static int cmd_version(cmd_arg_t *argv);
  422. cmd_info_t version_info = {
  423.     .name = "version",
  424.     .description = "Print version information.",
  425.     .help = NULL,
  426.     .func = cmd_version,
  427.     .argc = 0,
  428.     .argv = NULL
  429. };
  430.  
  431. static cmd_info_t *basic_commands[] = {
  432.     &call0_info,
  433.     &mcall0_info,
  434.     &call1_info,
  435.     &call2_info,
  436.     &call3_info,
  437.     &continue_info,
  438.     &cpus_info,
  439.     &desc_info,
  440.     &exit_info,
  441.     &reboot_info,
  442.     &halt_info,
  443.     &help_info,
  444.     &ipc_task_info,
  445.     &set4_info,
  446.     &slabs_info,
  447.     &symaddr_info,
  448.     &sched_info,
  449.     &threads_info,
  450.     &tasks_info,
  451.     &tlb_info,
  452.     &version_info,
  453.     &zones_info,
  454.     &zone_info,
  455. #ifdef CONFIG_TEST
  456.     &tests_info,
  457.     &test_info,
  458.     &bench_info,
  459. #endif
  460.     NULL
  461. };
  462.  
  463.  
  464. /** Initialize command info structure.
  465.  *
  466.  * @param cmd Command info structure.
  467.  *
  468.  */
  469. void cmd_initialize(cmd_info_t *cmd)
  470. {
  471.     spinlock_initialize(&cmd->lock, "cmd");
  472.     link_initialize(&cmd->link);
  473. }
  474.  
  475. /** Initialize and register commands. */
  476. void cmd_init(void)
  477. {
  478.     int i;
  479.  
  480.     for (i=0;basic_commands[i]; i++) {
  481.         cmd_initialize(basic_commands[i]);
  482.         if (!cmd_register(basic_commands[i]))
  483.             panic("could not register command %s\n",
  484.                   basic_commands[i]->name);
  485.     }
  486. }
  487.  
  488.  
  489. /** List supported commands.
  490.  *
  491.  * @param argv Argument vector.
  492.  *
  493.  * @return 0 on failure, 1 on success.
  494.  */
  495. int cmd_help(cmd_arg_t *argv)
  496. {
  497.     link_t *cur;
  498.  
  499.     spinlock_lock(&cmd_lock);
  500.    
  501.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  502.         cmd_info_t *hlp;
  503.        
  504.         hlp = list_get_instance(cur, cmd_info_t, link);
  505.         spinlock_lock(&hlp->lock);
  506.        
  507.         printf("%s - %s\n", hlp->name, hlp->description);
  508.  
  509.         spinlock_unlock(&hlp->lock);
  510.     }
  511.    
  512.     spinlock_unlock(&cmd_lock);
  513.  
  514.     return 1;
  515. }
  516.  
  517.  
  518. /** Reboot the system.
  519.  *
  520.  * @param argv Argument vector.
  521.  *
  522.  * @return 0 on failure, 1 on success.
  523.  */
  524. int cmd_reboot(cmd_arg_t *argv)
  525. {
  526.     reboot();
  527.    
  528.     /* Not reached */
  529.     return 1;
  530. }
  531.  
  532. /** Describe specified command.
  533.  *
  534.  * @param argv Argument vector.
  535.  *
  536.  * @return 0 on failure, 1 on success.
  537.  */
  538. int cmd_desc(cmd_arg_t *argv)
  539. {
  540.     link_t *cur;
  541.  
  542.     spinlock_lock(&cmd_lock);
  543.    
  544.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  545.         cmd_info_t *hlp;
  546.        
  547.         hlp = list_get_instance(cur, cmd_info_t, link);
  548.         spinlock_lock(&hlp->lock);
  549.  
  550.         if (strncmp(hlp->name, (const char *) argv->buffer, strlen(hlp->name)) == 0) {
  551.             printf("%s - %s\n", hlp->name, hlp->description);
  552.             if (hlp->help)
  553.                 hlp->help();
  554.             spinlock_unlock(&hlp->lock);
  555.             break;
  556.         }
  557.  
  558.         spinlock_unlock(&hlp->lock);
  559.     }
  560.    
  561.     spinlock_unlock(&cmd_lock);
  562.  
  563.     return 1;
  564. }
  565.  
  566. /** Search symbol table */
  567. int cmd_symaddr(cmd_arg_t *argv)
  568. {
  569.     symtab_print_search((char *) argv->buffer);
  570.    
  571.     return 1;
  572. }
  573.  
  574. /** Call function with zero parameters */
  575. int cmd_call0(cmd_arg_t *argv)
  576. {
  577.     uintptr_t symaddr;
  578.     char *symbol;
  579.     unative_t (*f)(void);
  580. #ifdef ia64
  581.     struct {
  582.         unative_t f;
  583.         unative_t gp;
  584.     } fptr;
  585. #endif
  586.  
  587.     symaddr = get_symbol_addr((char *) argv->buffer);
  588.     if (!symaddr)
  589.         printf("Symbol %s not found.\n", argv->buffer);
  590.     else if (symaddr == (uintptr_t) -1) {
  591.         symtab_print_search((char *) argv->buffer);
  592.         printf("Duplicate symbol, be more specific.\n");
  593.     } else {
  594.         symbol = get_symtab_entry(symaddr);
  595.         printf("Calling %s() (%.*p)\n", symbol, sizeof(uintptr_t) * 2, symaddr);
  596. #ifdef ia64
  597.         fptr.f = symaddr;
  598.         fptr.gp = ((unative_t *)cmd_call2)[1];
  599.         f =  (unative_t (*)(void)) &fptr;
  600. #else
  601.         f =  (unative_t (*)(void)) symaddr;
  602. #endif
  603.         printf("Result: %#zx\n", f());
  604.     }
  605.    
  606.     return 1;
  607. }
  608.  
  609. /** Call function with zero parameters on each CPU */
  610. int cmd_mcall0(cmd_arg_t *argv)
  611. {
  612.     /*
  613.      * For each CPU, create a thread which will
  614.      * call the function.
  615.      */
  616.    
  617.     count_t i;
  618.     for (i = 0; i < config.cpu_count; i++) {
  619.         thread_t *t;
  620.         if ((t = thread_create((void (*)(void *)) cmd_call0, (void *) argv, TASK, THREAD_FLAG_WIRED, "call0", false))) {
  621.             spinlock_lock(&t->lock);
  622.             t->cpu = &cpus[i];
  623.             spinlock_unlock(&t->lock);
  624.             printf("cpu%u: ", i);
  625.             thread_ready(t);
  626.             thread_join(t);
  627.             thread_detach(t);
  628.         } else
  629.             printf("Unable to create thread for cpu%u\n", i);
  630.     }
  631.    
  632.     return 1;
  633. }
  634.  
  635. /** Call function with one parameter */
  636. int cmd_call1(cmd_arg_t *argv)
  637. {
  638.     uintptr_t symaddr;
  639.     char *symbol;
  640.     unative_t (*f)(unative_t,...);
  641.     unative_t arg1 = argv[1].intval;
  642. #ifdef ia64
  643.     struct {
  644.         unative_t f;
  645.         unative_t gp;
  646.     }fptr;
  647. #endif
  648.  
  649.     symaddr = get_symbol_addr((char *) argv->buffer);
  650.     if (!symaddr)
  651.         printf("Symbol %s not found.\n", argv->buffer);
  652.     else if (symaddr == (uintptr_t) -1) {
  653.         symtab_print_search((char *) argv->buffer);
  654.         printf("Duplicate symbol, be more specific.\n");
  655.     } else {
  656.         symbol = get_symtab_entry(symaddr);
  657.  
  658.         printf("Calling f(%#zx): %.*p: %s\n", arg1, sizeof(uintptr_t) * 2, symaddr, symbol);
  659. #ifdef ia64
  660.         fptr.f = symaddr;
  661.         fptr.gp = ((unative_t *)cmd_call2)[1];
  662.         f =  (unative_t (*)(unative_t,...)) &fptr;
  663. #else
  664.         f =  (unative_t (*)(unative_t,...)) symaddr;
  665. #endif
  666.         printf("Result: %#zx\n", f(arg1));
  667.     }
  668.    
  669.     return 1;
  670. }
  671.  
  672. /** Call function with two parameters */
  673. int cmd_call2(cmd_arg_t *argv)
  674. {
  675.     uintptr_t symaddr;
  676.     char *symbol;
  677.     unative_t (*f)(unative_t,unative_t,...);
  678.     unative_t arg1 = argv[1].intval;
  679.     unative_t arg2 = argv[2].intval;
  680. #ifdef ia64
  681.     struct {
  682.         unative_t f;
  683.         unative_t gp;
  684.     }fptr;
  685. #endif
  686.  
  687.     symaddr = get_symbol_addr((char *) argv->buffer);
  688.     if (!symaddr)
  689.         printf("Symbol %s not found.\n", argv->buffer);
  690.     else if (symaddr == (uintptr_t) -1) {
  691.         symtab_print_search((char *) argv->buffer);
  692.         printf("Duplicate symbol, be more specific.\n");
  693.     } else {
  694.         symbol = get_symtab_entry(symaddr);
  695.         printf("Calling f(0x%zx,0x%zx): %.*p: %s\n",
  696.                arg1, arg2, sizeof(uintptr_t) * 2, symaddr, symbol);
  697. #ifdef ia64
  698.         fptr.f = symaddr;
  699.         fptr.gp = ((unative_t *)cmd_call2)[1];
  700.         f =  (unative_t (*)(unative_t,unative_t,...)) &fptr;
  701. #else
  702.         f =  (unative_t (*)(unative_t,unative_t,...)) symaddr;
  703. #endif
  704.         printf("Result: %#zx\n", f(arg1, arg2));
  705.     }
  706.    
  707.     return 1;
  708. }
  709.  
  710. /** Call function with three parameters */
  711. int cmd_call3(cmd_arg_t *argv)
  712. {
  713.     uintptr_t symaddr;
  714.     char *symbol;
  715.     unative_t (*f)(unative_t,unative_t,unative_t,...);
  716.     unative_t arg1 = argv[1].intval;
  717.     unative_t arg2 = argv[2].intval;
  718.     unative_t arg3 = argv[3].intval;
  719. #ifdef ia64
  720.     struct {
  721.         unative_t f;
  722.         unative_t gp;
  723.     }fptr;
  724. #endif
  725.  
  726.     symaddr = get_symbol_addr((char *) argv->buffer);
  727.     if (!symaddr)
  728.         printf("Symbol %s not found.\n", argv->buffer);
  729.     else if (symaddr == (uintptr_t) -1) {
  730.         symtab_print_search((char *) argv->buffer);
  731.         printf("Duplicate symbol, be more specific.\n");
  732.     } else {
  733.         symbol = get_symtab_entry(symaddr);
  734.         printf("Calling f(0x%zx,0x%zx, 0x%zx): %.*p: %s\n",
  735.                arg1, arg2, arg3, sizeof(uintptr_t) * 2, symaddr, symbol);
  736. #ifdef ia64
  737.         fptr.f = symaddr;
  738.         fptr.gp = ((unative_t *)cmd_call2)[1];
  739.         f =  (unative_t (*)(unative_t,unative_t,unative_t,...)) &fptr;
  740. #else
  741.         f =  (unative_t (*)(unative_t,unative_t,unative_t,...)) symaddr;
  742. #endif
  743.         printf("Result: %#zx\n", f(arg1, arg2, arg3));
  744.     }
  745.    
  746.     return 1;
  747. }
  748.  
  749.  
  750. /** Print detailed description of 'describe' command. */
  751. void desc_help(void)
  752. {
  753.     printf("Syntax: describe command_name\n");
  754. }
  755.  
  756. /** Halt the kernel.
  757.  *
  758.  * @param argv Argument vector (ignored).
  759.  *
  760.  * @return 0 on failure, 1 on success (never returns).
  761.  */
  762. int cmd_halt(cmd_arg_t *argv)
  763. {
  764.     halt();
  765.     return 1;
  766. }
  767.  
  768. /** Command for printing TLB contents.
  769.  *
  770.  * @param argv Not used.
  771.  *
  772.  * @return Always returns 1.
  773.  */
  774. int cmd_tlb(cmd_arg_t *argv)
  775. {
  776.     tlb_print();
  777.     return 1;
  778. }
  779.  
  780. /** Write 4 byte value to address */
  781. int cmd_set4(cmd_arg_t *argv)
  782. {
  783.     uint32_t *addr;
  784.     uint32_t arg1 = argv[1].intval;
  785.     bool pointer = false;
  786.  
  787.     if (((char *)argv->buffer)[0] == '*') {
  788.         addr = (uint32_t *) get_symbol_addr((char *) argv->buffer + 1);
  789.         pointer = true;
  790.     } else if (((char *) argv->buffer)[0] >= '0' &&
  791.            ((char *)argv->buffer)[0] <= '9')
  792.         addr = (uint32_t *)atoi((char *)argv->buffer);
  793.     else
  794.         addr = (uint32_t *)get_symbol_addr((char *) argv->buffer);
  795.  
  796.     if (!addr)
  797.         printf("Symbol %s not found.\n", argv->buffer);
  798.     else if (addr == (uint32_t *) -1) {
  799.         symtab_print_search((char *) argv->buffer);
  800.         printf("Duplicate symbol, be more specific.\n");
  801.     } else {
  802.         if (pointer)
  803.             addr = (uint32_t *)(*(unative_t *)addr);
  804.         printf("Writing 0x%x -> %.*p\n", arg1, sizeof(uintptr_t) * 2, addr);
  805.         *addr = arg1;
  806.        
  807.     }
  808.    
  809.     return 1;
  810. }
  811.  
  812. /** Command for listings SLAB caches
  813.  *
  814.  * @param argv Ignores
  815.  *
  816.  * @return Always 1
  817.  */
  818. int cmd_slabs(cmd_arg_t * argv) {
  819.     slab_print_list();
  820.     return 1;
  821. }
  822.  
  823.  
  824. /** Command for listings Thread information
  825.  *
  826.  * @param argv Ignores
  827.  *
  828.  * @return Always 1
  829.  */
  830. int cmd_threads(cmd_arg_t * argv) {
  831.     thread_print_list();
  832.     return 1;
  833. }
  834.  
  835. /** Command for listings Task information
  836.  *
  837.  * @param argv Ignores
  838.  *
  839.  * @return Always 1
  840.  */
  841. int cmd_tasks(cmd_arg_t * argv) {
  842.     task_print_list();
  843.     return 1;
  844. }
  845.  
  846. /** Command for listings Thread information
  847.  *
  848.  * @param argv Ignores
  849.  *
  850.  * @return Always 1
  851.  */
  852. int cmd_sched(cmd_arg_t * argv) {
  853.     sched_print_list();
  854.     return 1;
  855. }
  856.  
  857. /** Command for listing memory zones
  858.  *
  859.  * @param argv Ignored
  860.  *
  861.  * return Always 1
  862.  */
  863. int cmd_zones(cmd_arg_t * argv) {
  864.     zone_print_list();
  865.     return 1;
  866. }
  867.  
  868. /** Command for memory zone details
  869.  *
  870.  * @param argv Integer argument from cmdline expected
  871.  *
  872.  * return Always 1
  873.  */
  874. int cmd_zone(cmd_arg_t * argv) {
  875.     zone_print_one(argv[0].intval);
  876.     return 1;
  877. }
  878.  
  879. /** Command for printing task ipc details
  880.  *
  881.  * @param argv Integer argument from cmdline expected
  882.  *
  883.  * return Always 1
  884.  */
  885. int cmd_ipc_task(cmd_arg_t * argv) {
  886.     ipc_print_task(argv[0].intval);
  887.     return 1;
  888. }
  889.  
  890.  
  891. /** Command for listing processors.
  892.  *
  893.  * @param argv Ignored.
  894.  *
  895.  * return Always 1.
  896.  */
  897. int cmd_cpus(cmd_arg_t *argv)
  898. {
  899.     cpu_list();
  900.     return 1;
  901. }
  902.  
  903. /** Command for printing kernel version.
  904.  *
  905.  * @param argv Ignored.
  906.  *
  907.  * return Always 1.
  908.  */
  909. int cmd_version(cmd_arg_t *argv)
  910. {
  911.     version_print();
  912.     return 1;
  913. }
  914.  
  915. /** Command for returning console back to userspace.
  916.  *
  917.  * @param argv Ignored.
  918.  *
  919.  * return Always 1.
  920.  */
  921. int cmd_continue(cmd_arg_t *argv)
  922. {
  923.     printf("The kernel will now relinquish the console.\n");
  924.     printf("Use userspace controls to redraw the screen.\n");
  925.     arch_release_console();
  926.     return 1;
  927. }
  928.  
  929. #ifdef CONFIG_TEST
  930. /** Command for printing kernel tests list.
  931.  *
  932.  * @param argv Ignored.
  933.  *
  934.  * return Always 1.
  935.  */
  936. int cmd_tests(cmd_arg_t *argv)
  937. {
  938.     test_t *test;
  939.    
  940.     for (test = tests; test->name != NULL; test++)
  941.         printf("%s\t\t%s%s\n", test->name, test->desc, (test->safe ? "" : " (unsafe)"));
  942.    
  943.     printf("*\t\tRun all safe tests\n");
  944.     return 1;
  945. }
  946.  
  947. static bool run_test(const test_t *test)
  948. {
  949.     printf("%s\t\t%s\n", test->name, test->desc);
  950.    
  951.     /* Update and read thread accounting
  952.        for benchmarking */
  953.     ipl_t ipl = interrupts_disable();
  954.     spinlock_lock(&TASK->lock);
  955.     uint64_t t0 = task_get_accounting(TASK);
  956.     spinlock_unlock(&TASK->lock);
  957.     interrupts_restore(ipl);
  958.    
  959.     /* Execute the test */
  960.     char * ret = test->entry(false);
  961.    
  962.     /* Update and read thread accounting */
  963.     ipl = interrupts_disable();
  964.     spinlock_lock(&TASK->lock);
  965.     uint64_t dt = task_get_accounting(TASK) - t0;
  966.     spinlock_unlock(&TASK->lock);
  967.     interrupts_restore(ipl);
  968.    
  969.     uint64_t cycles;
  970.     char suffix;
  971.     order(dt, &cycles, &suffix);
  972.        
  973.     printf("Time: %llu%c cycles\n", cycles, suffix);
  974.    
  975.     if (ret == NULL) {
  976.         printf("Test passed\n");
  977.         return true;
  978.     }
  979.  
  980.     printf("%s\n", ret);
  981.     return false;
  982. }
  983.  
  984. static bool run_bench(const test_t *test, const uint32_t cnt)
  985. {
  986.     uint32_t i;
  987.     bool ret = true;
  988.     uint64_t cycles;
  989.     char suffix;
  990.    
  991.     if (cnt < 1)
  992.         return true;
  993.    
  994.     uint64_t *data = (uint64_t *) malloc(sizeof(uint64_t) * cnt, 0);
  995.     if (data == NULL) {
  996.         printf("Error allocating memory for statistics\n");
  997.         return false;
  998.     }
  999.    
  1000.     for (i = 0; i < cnt; i++) {
  1001.         printf("%s (%d/%d) ... ", test->name, i + 1, cnt);
  1002.        
  1003.         /* Update and read thread accounting
  1004.            for benchmarking */
  1005.         ipl_t ipl = interrupts_disable();
  1006.         spinlock_lock(&TASK->lock);
  1007.         uint64_t t0 = task_get_accounting(TASK);
  1008.         spinlock_unlock(&TASK->lock);
  1009.         interrupts_restore(ipl);
  1010.        
  1011.         /* Execute the test */
  1012.         char * ret = test->entry(true);
  1013.        
  1014.         /* Update and read thread accounting */
  1015.         ipl = interrupts_disable();
  1016.         spinlock_lock(&TASK->lock);
  1017.         uint64_t dt = task_get_accounting(TASK) - t0;
  1018.         spinlock_unlock(&TASK->lock);
  1019.         interrupts_restore(ipl);
  1020.        
  1021.         if (ret != NULL) {
  1022.             printf("%s\n", ret);
  1023.             ret = false;
  1024.             break;
  1025.         }
  1026.        
  1027.         data[i] = dt;
  1028.         order(dt, &cycles, &suffix);
  1029.         printf("OK (%llu%c cycles)\n", cycles, suffix);
  1030.     }
  1031.    
  1032.     if (ret) {
  1033.         printf("\n");
  1034.        
  1035.         uint64_t sum = 0;
  1036.        
  1037.         for (i = 0; i < cnt; i++) {
  1038.             sum += data[i];
  1039.         }
  1040.        
  1041.         order(sum / (uint64_t) cnt, &cycles, &suffix);
  1042.         printf("Average\t\t%llu%c\n", cycles, suffix);
  1043.     }
  1044.    
  1045.     free(data);
  1046.    
  1047.     return ret;
  1048. }
  1049.  
  1050. /** Command for returning kernel tests
  1051.  *
  1052.  * @param argv Argument vector.
  1053.  *
  1054.  * return Always 1.
  1055.  */
  1056. int cmd_test(cmd_arg_t *argv)
  1057. {
  1058.     test_t *test;
  1059.    
  1060.     if (strcmp((char *) argv->buffer, "*") == 0) {
  1061.         for (test = tests; test->name != NULL; test++) {
  1062.             if (test->safe) {
  1063.                 printf("\n");
  1064.                 if (!run_test(test))
  1065.                     break;
  1066.             }
  1067.         }
  1068.     } else {
  1069.         bool fnd = false;
  1070.        
  1071.         for (test = tests; test->name != NULL; test++) {
  1072.             if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1073.                 fnd = true;
  1074.                 run_test(test);
  1075.                 break;
  1076.             }
  1077.         }
  1078.        
  1079.         if (!fnd)
  1080.             printf("Unknown test\n");
  1081.     }
  1082.    
  1083.     return 1;
  1084. }
  1085.  
  1086. /** Command for returning kernel tests as benchmarks
  1087.  *
  1088.  * @param argv Argument vector.
  1089.  *
  1090.  * return Always 1.
  1091.  */
  1092. int cmd_bench(cmd_arg_t *argv)
  1093. {
  1094.     test_t *test;
  1095.     uint32_t cnt = argv[1].intval;
  1096.    
  1097.     bool fnd = false;
  1098.    
  1099.     for (test = tests; test->name != NULL; test++) {
  1100.         if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1101.             fnd = true;
  1102.            
  1103.             if (test->safe)
  1104.                 run_bench(test, cnt);
  1105.             else
  1106.                 printf("Unsafe test\n");
  1107.            
  1108.             break;
  1109.         }
  1110.     }
  1111.        
  1112.     if (!fnd)
  1113.         printf("Unknown test\n");
  1114.  
  1115.     return 1;
  1116. }
  1117.  
  1118. #endif
  1119.  
  1120. /** @}
  1121.  */
  1122.