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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_uptime(cmd_arg_t *argv);
  96. static cmd_info_t uptime_info = {
  97.     .name = "uptime",
  98.     .description = "Print uptime information.",
  99.     .func = cmd_uptime,
  100.     .argc = 0
  101. };
  102.  
  103. static int cmd_continue(cmd_arg_t *argv);
  104. static cmd_info_t continue_info = {
  105.     .name = "continue",
  106.     .description = "Return console back to userspace.",
  107.     .func = cmd_continue,
  108.     .argc = 0
  109. };
  110.  
  111. #ifdef CONFIG_TEST
  112. static int cmd_tests(cmd_arg_t *argv);
  113. static cmd_info_t tests_info = {
  114.     .name = "tests",
  115.     .description = "Print available kernel tests.",
  116.     .func = cmd_tests,
  117.     .argc = 0
  118. };
  119.  
  120. static char test_buf[MAX_CMDLINE + 1];
  121. static int cmd_test(cmd_arg_t *argv);
  122. static cmd_arg_t test_argv[] = {
  123.     {
  124.         .type = ARG_TYPE_STRING,
  125.         .buffer = test_buf,
  126.         .len = sizeof(test_buf)
  127.     }
  128. };
  129. static cmd_info_t test_info = {
  130.     .name = "test",
  131.     .description = "Run kernel test.",
  132.     .func = cmd_test,
  133.     .argc = 1,
  134.     .argv = test_argv
  135. };
  136.  
  137. static int cmd_bench(cmd_arg_t *argv);
  138. static cmd_arg_t bench_argv[] = {
  139.     {
  140.         .type = ARG_TYPE_STRING,
  141.         .buffer = test_buf,
  142.         .len = sizeof(test_buf)
  143.     },
  144.     {
  145.         .type = ARG_TYPE_INT,
  146.     }
  147. };
  148. static cmd_info_t bench_info = {
  149.     .name = "bench",
  150.     .description = "Run kernel test as benchmark.",
  151.     .func = cmd_bench,
  152.     .argc = 2,
  153.     .argv = bench_argv
  154. };
  155. #endif
  156.  
  157. /* Data and methods for 'description' command. */
  158. static int cmd_desc(cmd_arg_t *argv);
  159. static void desc_help(void);
  160. static char desc_buf[MAX_CMDLINE+1];
  161. static cmd_arg_t desc_argv = {
  162.     .type = ARG_TYPE_STRING,
  163.     .buffer = desc_buf,
  164.     .len = sizeof(desc_buf)
  165. };
  166. static cmd_info_t desc_info = {
  167.     .name = "describe",
  168.     .description = "Describe specified command.",
  169.     .help = desc_help,
  170.     .func = cmd_desc,
  171.     .argc = 1,
  172.     .argv = &desc_argv
  173. };
  174.  
  175. /* Data and methods for 'symaddr' command. */
  176. static int cmd_symaddr(cmd_arg_t *argv);
  177. static char symaddr_buf[MAX_CMDLINE+1];
  178. static cmd_arg_t symaddr_argv = {
  179.     .type = ARG_TYPE_STRING,
  180.     .buffer = symaddr_buf,
  181.     .len = sizeof(symaddr_buf)
  182. };
  183. static cmd_info_t symaddr_info = {
  184.     .name = "symaddr",
  185.     .description = "Return symbol address.",
  186.     .func = cmd_symaddr,
  187.     .argc = 1,
  188.     .argv = &symaddr_argv
  189. };
  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.     &exit_info,
  460.     &reboot_info,
  461.     &uptime_info,
  462.     &halt_info,
  463.     &help_info,
  464.     &ipc_info,
  465.     &set4_info,
  466.     &slabs_info,
  467.     &symaddr_info,
  468.     &sched_info,
  469.     &threads_info,
  470.     &tasks_info,
  471.     &physmem_info,
  472.     &tlb_info,
  473.     &version_info,
  474.     &zones_info,
  475.     &zone_info,
  476. #ifdef CONFIG_TEST
  477.     &tests_info,
  478.     &test_info,
  479.     &bench_info,
  480. #endif
  481.     NULL
  482. };
  483.  
  484.  
  485. /** Initialize command info structure.
  486.  *
  487.  * @param cmd Command info structure.
  488.  *
  489.  */
  490. void cmd_initialize(cmd_info_t *cmd)
  491. {
  492.     spinlock_initialize(&cmd->lock, "cmd");
  493.     link_initialize(&cmd->link);
  494. }
  495.  
  496. /** Initialize and register commands. */
  497. void cmd_init(void)
  498. {
  499.     unsigned int i;
  500.  
  501.     for (i = 0; basic_commands[i]; i++) {
  502.         cmd_initialize(basic_commands[i]);
  503.         if (!cmd_register(basic_commands[i]))
  504.             printf("Cannot register command %s\n", basic_commands[i]->name);
  505.     }
  506. }
  507.  
  508.  
  509. /** List supported commands.
  510.  *
  511.  * @param argv Argument vector.
  512.  *
  513.  * @return 0 on failure, 1 on success.
  514.  */
  515. int cmd_help(cmd_arg_t *argv)
  516. {
  517.     link_t *cur;
  518.  
  519.     spinlock_lock(&cmd_lock);
  520.    
  521.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  522.         cmd_info_t *hlp;
  523.        
  524.         hlp = list_get_instance(cur, cmd_info_t, link);
  525.         spinlock_lock(&hlp->lock);
  526.        
  527.         printf("%s - %s\n", hlp->name, hlp->description);
  528.  
  529.         spinlock_unlock(&hlp->lock);
  530.     }
  531.    
  532.     spinlock_unlock(&cmd_lock);
  533.  
  534.     return 1;
  535. }
  536.  
  537.  
  538. /** Reboot the system.
  539.  *
  540.  * @param argv Argument vector.
  541.  *
  542.  * @return 0 on failure, 1 on success.
  543.  */
  544. int cmd_reboot(cmd_arg_t *argv)
  545. {
  546.     reboot();
  547.    
  548.     /* Not reached */
  549.     return 1;
  550. }
  551.  
  552.  
  553. /** Print system uptime information.
  554.  *
  555.  * @param argv Argument vector.
  556.  *
  557.  * @return 0 on failure, 1 on success.
  558.  */
  559. int cmd_uptime(cmd_arg_t *argv)
  560. {
  561.     ASSERT(uptime);
  562.    
  563.     /* This doesn't have to be very accurate */
  564.     unative_t sec = uptime->seconds1;
  565.    
  566.     printf("Up %" PRIun " days, %" PRIun " hours, %" PRIun " minutes, %" PRIun " seconds\n",
  567.         sec / 86400, (sec % 86400) / 3600, (sec % 3600) / 60, sec % 60);
  568.    
  569.     return 1;
  570. }
  571.  
  572. /** Describe specified command.
  573.  *
  574.  * @param argv Argument vector.
  575.  *
  576.  * @return 0 on failure, 1 on success.
  577.  */
  578. int cmd_desc(cmd_arg_t *argv)
  579. {
  580.     link_t *cur;
  581.  
  582.     spinlock_lock(&cmd_lock);
  583.    
  584.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  585.         cmd_info_t *hlp;
  586.        
  587.         hlp = list_get_instance(cur, cmd_info_t, link);
  588.         spinlock_lock(&hlp->lock);
  589.  
  590.         if (strncmp(hlp->name, (const char *) argv->buffer, strlen(hlp->name)) == 0) {
  591.             printf("%s - %s\n", hlp->name, hlp->description);
  592.             if (hlp->help)
  593.                 hlp->help();
  594.             spinlock_unlock(&hlp->lock);
  595.             break;
  596.         }
  597.  
  598.         spinlock_unlock(&hlp->lock);
  599.     }
  600.    
  601.     spinlock_unlock(&cmd_lock);
  602.  
  603.     return 1;
  604. }
  605.  
  606. /** Search symbol table */
  607. int cmd_symaddr(cmd_arg_t *argv)
  608. {
  609.     symtab_print_search((char *) argv->buffer);
  610.    
  611.     return 1;
  612. }
  613.  
  614. /** Call function with zero parameters */
  615. int cmd_call0(cmd_arg_t *argv)
  616. {
  617.     uintptr_t symaddr;
  618.     char *symbol;
  619.     unative_t (*fnc)(void);
  620.     fncptr_t fptr;
  621.    
  622.     symaddr = get_symbol_addr((char *) argv->buffer);
  623.     if (!symaddr)
  624.         printf("Symbol %s not found.\n", argv->buffer);
  625.     else if (symaddr == (uintptr_t) -1) {
  626.         symtab_print_search((char *) argv->buffer);
  627.         printf("Duplicate symbol, be more specific.\n");
  628.     } else {
  629.         symbol = get_symtab_entry(symaddr);
  630.         fnc = (unative_t (*)(void)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call0);
  631.         printf("Calling %s() (%p)\n", symbol, symaddr);
  632.         printf("Result: %#" PRIxn "\n", fnc());
  633.     }
  634.    
  635.     return 1;
  636. }
  637.  
  638. /** Call function with zero parameters on each CPU */
  639. int cmd_mcall0(cmd_arg_t *argv)
  640. {
  641.     /*
  642.      * For each CPU, create a thread which will
  643.      * call the function.
  644.      */
  645.    
  646.     count_t i;
  647.     for (i = 0; i < config.cpu_count; i++) {
  648.         if (!cpus[i].active)
  649.             continue;
  650.        
  651.         thread_t *t;
  652.         if ((t = thread_create((void (*)(void *)) cmd_call0, (void *) argv, TASK, THREAD_FLAG_WIRED, "call0", false))) {
  653.             spinlock_lock(&t->lock);
  654.             t->cpu = &cpus[i];
  655.             spinlock_unlock(&t->lock);
  656.             printf("cpu%u: ", i);
  657.             thread_ready(t);
  658.             thread_join(t);
  659.             thread_detach(t);
  660.         } else
  661.             printf("Unable to create thread for cpu%u\n", i);
  662.     }
  663.    
  664.     return 1;
  665. }
  666.  
  667. /** Call function with one parameter */
  668. int cmd_call1(cmd_arg_t *argv)
  669. {
  670.     uintptr_t symaddr;
  671.     char *symbol;
  672.     unative_t (*fnc)(unative_t, ...);
  673.     unative_t arg1 = argv[1].intval;
  674.     fncptr_t fptr;
  675.    
  676.     symaddr = get_symbol_addr((char *) argv->buffer);
  677.     if (!symaddr)
  678.         printf("Symbol %s not found.\n", argv->buffer);
  679.     else if (symaddr == (uintptr_t) -1) {
  680.         symtab_print_search((char *) argv->buffer);
  681.         printf("Duplicate symbol, be more specific.\n");
  682.     } else {
  683.         symbol = get_symtab_entry(symaddr);
  684.         fnc = (unative_t (*)(unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call1);
  685.         printf("Calling f(%#" PRIxn "): %p: %s\n", arg1, symaddr, symbol);
  686.         printf("Result: %#" PRIxn "\n", fnc(arg1));
  687.     }
  688.    
  689.     return 1;
  690. }
  691.  
  692. /** Call function with two parameters */
  693. int cmd_call2(cmd_arg_t *argv)
  694. {
  695.     uintptr_t symaddr;
  696.     char *symbol;
  697.     unative_t (*fnc)(unative_t, unative_t, ...);
  698.     unative_t arg1 = argv[1].intval;
  699.     unative_t arg2 = argv[2].intval;
  700.     fncptr_t fptr;
  701.    
  702.     symaddr = get_symbol_addr((char *) argv->buffer);
  703.     if (!symaddr)
  704.         printf("Symbol %s not found.\n", argv->buffer);
  705.     else if (symaddr == (uintptr_t) -1) {
  706.         symtab_print_search((char *) argv->buffer);
  707.         printf("Duplicate symbol, be more specific.\n");
  708.     } else {
  709.         symbol = get_symtab_entry(symaddr);
  710.         fnc = (unative_t (*)(unative_t, unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call2);
  711.         printf("Calling f(%#" PRIxn ", %#" PRIxn "): %p: %s\n",
  712.                arg1, arg2, symaddr, symbol);
  713.         printf("Result: %#" PRIxn "\n", fnc(arg1, arg2));
  714.     }
  715.    
  716.     return 1;
  717. }
  718.  
  719. /** Call function with three parameters */
  720. int cmd_call3(cmd_arg_t *argv)
  721. {
  722.     uintptr_t symaddr;
  723.     char *symbol;
  724.     unative_t (*fnc)(unative_t, unative_t, unative_t, ...);
  725.     unative_t arg1 = argv[1].intval;
  726.     unative_t arg2 = argv[2].intval;
  727.     unative_t arg3 = argv[3].intval;
  728.     fncptr_t fptr;
  729.    
  730.     symaddr = get_symbol_addr((char *) argv->buffer);
  731.     if (!symaddr)
  732.         printf("Symbol %s not found.\n", argv->buffer);
  733.     else if (symaddr == (uintptr_t) -1) {
  734.         symtab_print_search((char *) argv->buffer);
  735.         printf("Duplicate symbol, be more specific.\n");
  736.     } else {
  737.         symbol = get_symtab_entry(symaddr);
  738.         fnc = (unative_t (*)(unative_t, unative_t, unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call3);
  739.         printf("Calling f(%#" PRIxn ",%#" PRIxn ", %#" PRIxn "): %p: %s\n",
  740.                arg1, arg2, arg3, symaddr, symbol);
  741.         printf("Result: %#" PRIxn "\n", fnc(arg1, arg2, arg3));
  742.     }
  743.    
  744.     return 1;
  745. }
  746.  
  747.  
  748. /** Print detailed description of 'describe' command. */
  749. void desc_help(void)
  750. {
  751.     printf("Syntax: describe command_name\n");
  752. }
  753.  
  754. /** Halt the kernel.
  755.  *
  756.  * @param argv Argument vector (ignored).
  757.  *
  758.  * @return 0 on failure, 1 on success (never returns).
  759.  */
  760. int cmd_halt(cmd_arg_t *argv)
  761. {
  762.     halt();
  763.     return 1;
  764. }
  765.  
  766. /** Command for printing TLB contents.
  767.  *
  768.  * @param argv Not used.
  769.  *
  770.  * @return Always returns 1.
  771.  */
  772. int cmd_tlb(cmd_arg_t *argv)
  773. {
  774.     tlb_print();
  775.     return 1;
  776. }
  777.  
  778. /** Command for printing physical memory configuration.
  779.  *
  780.  * @param argv Not used.
  781.  *
  782.  * @return Always returns 1.
  783.  */
  784. int cmd_physmem(cmd_arg_t *argv)
  785. {
  786.     physmem_print();
  787.     return 1;
  788. }
  789.  
  790. /** Write 4 byte value to address */
  791. int cmd_set4(cmd_arg_t *argv)
  792. {
  793.     uint32_t *addr;
  794.     uint32_t arg1 = argv[1].intval;
  795.     bool pointer = false;
  796.  
  797.     if (((char *)argv->buffer)[0] == '*') {
  798.         addr = (uint32_t *) get_symbol_addr((char *) argv->buffer + 1);
  799.         pointer = true;
  800.     } else if (((char *) argv->buffer)[0] >= '0' &&
  801.            ((char *)argv->buffer)[0] <= '9')
  802.         addr = (uint32_t *)atoi((char *)argv->buffer);
  803.     else
  804.         addr = (uint32_t *)get_symbol_addr((char *) argv->buffer);
  805.  
  806.     if (!addr)
  807.         printf("Symbol %s not found.\n", argv->buffer);
  808.     else if (addr == (uint32_t *) -1) {
  809.         symtab_print_search((char *) argv->buffer);
  810.         printf("Duplicate symbol, be more specific.\n");
  811.     } else {
  812.         if (pointer)
  813.             addr = (uint32_t *)(*(unative_t *)addr);
  814.         printf("Writing %#" PRIx64 " -> %p\n", arg1, addr);
  815.         *addr = arg1;
  816.        
  817.     }
  818.    
  819.     return 1;
  820. }
  821.  
  822. /** Command for listings SLAB caches
  823.  *
  824.  * @param argv Ignores
  825.  *
  826.  * @return Always 1
  827.  */
  828. int cmd_slabs(cmd_arg_t * argv) {
  829.     slab_print_list();
  830.     return 1;
  831. }
  832.  
  833.  
  834. /** Command for listings Thread information
  835.  *
  836.  * @param argv Ignores
  837.  *
  838.  * @return Always 1
  839.  */
  840. int cmd_threads(cmd_arg_t * argv) {
  841.     thread_print_list();
  842.     return 1;
  843. }
  844.  
  845. /** Command for listings Task information
  846.  *
  847.  * @param argv Ignores
  848.  *
  849.  * @return Always 1
  850.  */
  851. int cmd_tasks(cmd_arg_t * argv) {
  852.     task_print_list();
  853.     return 1;
  854. }
  855.  
  856. /** Command for listings Thread information
  857.  *
  858.  * @param argv Ignores
  859.  *
  860.  * @return Always 1
  861.  */
  862. int cmd_sched(cmd_arg_t * argv) {
  863.     sched_print_list();
  864.     return 1;
  865. }
  866.  
  867. /** Command for listing memory zones
  868.  *
  869.  * @param argv Ignored
  870.  *
  871.  * return Always 1
  872.  */
  873. int cmd_zones(cmd_arg_t * argv) {
  874.     zone_print_list();
  875.     return 1;
  876. }
  877.  
  878. /** Command for memory zone details
  879.  *
  880.  * @param argv Integer argument from cmdline expected
  881.  *
  882.  * return Always 1
  883.  */
  884. int cmd_zone(cmd_arg_t * argv) {
  885.     zone_print_one(argv[0].intval);
  886.     return 1;
  887. }
  888.  
  889. /** Command for printing task ipc details
  890.  *
  891.  * @param argv Integer argument from cmdline expected
  892.  *
  893.  * return Always 1
  894.  */
  895. int cmd_ipc(cmd_arg_t * argv) {
  896.     ipc_print_task(argv[0].intval);
  897.     return 1;
  898. }
  899.  
  900.  
  901. /** Command for listing processors.
  902.  *
  903.  * @param argv Ignored.
  904.  *
  905.  * return Always 1.
  906.  */
  907. int cmd_cpus(cmd_arg_t *argv)
  908. {
  909.     cpu_list();
  910.     return 1;
  911. }
  912.  
  913. /** Command for printing kernel version.
  914.  *
  915.  * @param argv Ignored.
  916.  *
  917.  * return Always 1.
  918.  */
  919. int cmd_version(cmd_arg_t *argv)
  920. {
  921.     version_print();
  922.     return 1;
  923. }
  924.  
  925. /** Command for returning console back to userspace.
  926.  *
  927.  * @param argv Ignored.
  928.  *
  929.  * return Always 1.
  930.  */
  931. int cmd_continue(cmd_arg_t *argv)
  932. {
  933.     printf("The kernel will now relinquish the console.\n");
  934.     release_console();
  935.    
  936.     if ((kconsole_notify) && (kconsole_irq.notif_cfg.notify))
  937.         ipc_irq_send_msg_0(&kconsole_irq);
  938.    
  939.     return 1;
  940. }
  941.  
  942. #ifdef CONFIG_TEST
  943. /** Command for printing kernel tests list.
  944.  *
  945.  * @param argv Ignored.
  946.  *
  947.  * return Always 1.
  948.  */
  949. int cmd_tests(cmd_arg_t *argv)
  950. {
  951.     test_t *test;
  952.    
  953.     for (test = tests; test->name != NULL; test++)
  954.         printf("%-10s %s%s\n", test->name, test->desc, (test->safe ? "" : " (unsafe)"));
  955.    
  956.     printf("%-10s Run all safe tests\n", "*");
  957.     return 1;
  958. }
  959.  
  960. static bool run_test(const test_t *test)
  961. {
  962.     printf("%s\t\t%s\n", test->name, test->desc);
  963.    
  964.     /* Update and read thread accounting
  965.        for benchmarking */
  966.     ipl_t ipl = interrupts_disable();
  967.     spinlock_lock(&TASK->lock);
  968.     uint64_t t0 = task_get_accounting(TASK);
  969.     spinlock_unlock(&TASK->lock);
  970.     interrupts_restore(ipl);
  971.    
  972.     /* Execute the test */
  973.     char * ret = test->entry(false);
  974.    
  975.     /* Update and read thread accounting */
  976.     ipl = interrupts_disable();
  977.     spinlock_lock(&TASK->lock);
  978.     uint64_t dt = task_get_accounting(TASK) - t0;
  979.     spinlock_unlock(&TASK->lock);
  980.     interrupts_restore(ipl);
  981.    
  982.     uint64_t cycles;
  983.     char suffix;
  984.     order(dt, &cycles, &suffix);
  985.        
  986.     printf("Time: %" PRIu64 "%c cycles\n", cycles, suffix);
  987.    
  988.     if (ret == NULL) {
  989.         printf("Test passed\n");
  990.         return true;
  991.     }
  992.  
  993.     printf("%s\n", ret);
  994.     return false;
  995. }
  996.  
  997. static bool run_bench(const test_t *test, const uint32_t cnt)
  998. {
  999.     uint32_t i;
  1000.     bool ret = true;
  1001.     uint64_t cycles;
  1002.     char suffix;
  1003.    
  1004.     if (cnt < 1)
  1005.         return true;
  1006.    
  1007.     uint64_t *data = (uint64_t *) malloc(sizeof(uint64_t) * cnt, 0);
  1008.     if (data == NULL) {
  1009.         printf("Error allocating memory for statistics\n");
  1010.         return false;
  1011.     }
  1012.    
  1013.     for (i = 0; i < cnt; i++) {
  1014.         printf("%s (%u/%u) ... ", test->name, i + 1, cnt);
  1015.        
  1016.         /* Update and read thread accounting
  1017.            for benchmarking */
  1018.         ipl_t ipl = interrupts_disable();
  1019.         spinlock_lock(&TASK->lock);
  1020.         uint64_t t0 = task_get_accounting(TASK);
  1021.         spinlock_unlock(&TASK->lock);
  1022.         interrupts_restore(ipl);
  1023.        
  1024.         /* Execute the test */
  1025.         char * ret = test->entry(true);
  1026.        
  1027.         /* Update and read thread accounting */
  1028.         ipl = interrupts_disable();
  1029.         spinlock_lock(&TASK->lock);
  1030.         uint64_t dt = task_get_accounting(TASK) - t0;
  1031.         spinlock_unlock(&TASK->lock);
  1032.         interrupts_restore(ipl);
  1033.        
  1034.         if (ret != NULL) {
  1035.             printf("%s\n", ret);
  1036.             ret = false;
  1037.             break;
  1038.         }
  1039.        
  1040.         data[i] = dt;
  1041.         order(dt, &cycles, &suffix);
  1042.         printf("OK (%" PRIu64 "%c cycles)\n", cycles, suffix);
  1043.     }
  1044.    
  1045.     if (ret) {
  1046.         printf("\n");
  1047.        
  1048.         uint64_t sum = 0;
  1049.        
  1050.         for (i = 0; i < cnt; i++) {
  1051.             sum += data[i];
  1052.         }
  1053.        
  1054.         order(sum / (uint64_t) cnt, &cycles, &suffix);
  1055.         printf("Average\t\t%" PRIu64 "%c\n", cycles, suffix);
  1056.     }
  1057.    
  1058.     free(data);
  1059.    
  1060.     return ret;
  1061. }
  1062.  
  1063. /** Command for returning kernel tests
  1064.  *
  1065.  * @param argv Argument vector.
  1066.  *
  1067.  * return Always 1.
  1068.  */
  1069. int cmd_test(cmd_arg_t *argv)
  1070. {
  1071.     test_t *test;
  1072.    
  1073.     if (strcmp((char *) argv->buffer, "*") == 0) {
  1074.         for (test = tests; test->name != NULL; test++) {
  1075.             if (test->safe) {
  1076.                 printf("\n");
  1077.                 if (!run_test(test))
  1078.                     break;
  1079.             }
  1080.         }
  1081.     } else {
  1082.         bool fnd = false;
  1083.        
  1084.         for (test = tests; test->name != NULL; test++) {
  1085.             if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1086.                 fnd = true;
  1087.                 run_test(test);
  1088.                 break;
  1089.             }
  1090.         }
  1091.        
  1092.         if (!fnd)
  1093.             printf("Unknown test\n");
  1094.     }
  1095.    
  1096.     return 1;
  1097. }
  1098.  
  1099. /** Command for returning kernel tests as benchmarks
  1100.  *
  1101.  * @param argv Argument vector.
  1102.  *
  1103.  * return Always 1.
  1104.  */
  1105. int cmd_bench(cmd_arg_t *argv)
  1106. {
  1107.     test_t *test;
  1108.     uint32_t cnt = argv[1].intval;
  1109.    
  1110.     bool fnd = false;
  1111.    
  1112.     for (test = tests; test->name != NULL; test++) {
  1113.         if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1114.             fnd = true;
  1115.            
  1116.             if (test->safe)
  1117.                 run_bench(test, cnt);
  1118.             else
  1119.                 printf("Unsafe test\n");
  1120.            
  1121.             break;
  1122.         }
  1123.     }
  1124.        
  1125.     if (!fnd)
  1126.         printf("Unknown test\n");
  1127.  
  1128.     return 1;
  1129. }
  1130.  
  1131. #endif
  1132.  
  1133. /** @}
  1134.  */
  1135.