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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.     spinlock_lock(&cmd_lock);
  518.    
  519.     link_t *cur;
  520.     size_t len = 0;
  521.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  522.         cmd_info_t *hlp;
  523.         hlp = list_get_instance(cur, cmd_info_t, link);
  524.        
  525.         spinlock_lock(&hlp->lock);
  526.         if (strlen(hlp->name) > len)
  527.             len = strlen(hlp->name);
  528.         spinlock_unlock(&hlp->lock);
  529.     }
  530.    
  531.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  532.         cmd_info_t *hlp;
  533.         hlp = list_get_instance(cur, cmd_info_t, link);
  534.        
  535.         spinlock_lock(&hlp->lock);
  536.         printf("%-*s %s\n", len, hlp->name, hlp->description);
  537.         spinlock_unlock(&hlp->lock);
  538.     }
  539.    
  540.     spinlock_unlock(&cmd_lock);
  541.    
  542.     return 1;
  543. }
  544.  
  545.  
  546. /** Reboot the system.
  547.  *
  548.  * @param argv Argument vector.
  549.  *
  550.  * @return 0 on failure, 1 on success.
  551.  */
  552. int cmd_reboot(cmd_arg_t *argv)
  553. {
  554.     reboot();
  555.    
  556.     /* Not reached */
  557.     return 1;
  558. }
  559.  
  560.  
  561. /** Print system uptime information.
  562.  *
  563.  * @param argv Argument vector.
  564.  *
  565.  * @return 0 on failure, 1 on success.
  566.  */
  567. int cmd_uptime(cmd_arg_t *argv)
  568. {
  569.     ASSERT(uptime);
  570.    
  571.     /* This doesn't have to be very accurate */
  572.     unative_t sec = uptime->seconds1;
  573.    
  574.     printf("Up %" PRIun " days, %" PRIun " hours, %" PRIun " minutes, %" PRIun " seconds\n",
  575.         sec / 86400, (sec % 86400) / 3600, (sec % 3600) / 60, sec % 60);
  576.    
  577.     return 1;
  578. }
  579.  
  580. /** Describe specified command.
  581.  *
  582.  * @param argv Argument vector.
  583.  *
  584.  * @return 0 on failure, 1 on success.
  585.  */
  586. int cmd_desc(cmd_arg_t *argv)
  587. {
  588.     link_t *cur;
  589.  
  590.     spinlock_lock(&cmd_lock);
  591.    
  592.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  593.         cmd_info_t *hlp;
  594.        
  595.         hlp = list_get_instance(cur, cmd_info_t, link);
  596.         spinlock_lock(&hlp->lock);
  597.  
  598.         if (strncmp(hlp->name, (const char *) argv->buffer, strlen(hlp->name)) == 0) {
  599.             printf("%s - %s\n", hlp->name, hlp->description);
  600.             if (hlp->help)
  601.                 hlp->help();
  602.             spinlock_unlock(&hlp->lock);
  603.             break;
  604.         }
  605.  
  606.         spinlock_unlock(&hlp->lock);
  607.     }
  608.    
  609.     spinlock_unlock(&cmd_lock);
  610.  
  611.     return 1;
  612. }
  613.  
  614. /** Search symbol table */
  615. int cmd_symaddr(cmd_arg_t *argv)
  616. {
  617.     symtab_print_search((char *) argv->buffer);
  618.    
  619.     return 1;
  620. }
  621.  
  622. /** Call function with zero parameters */
  623. int cmd_call0(cmd_arg_t *argv)
  624. {
  625.     uintptr_t symaddr;
  626.     char *symbol;
  627.     unative_t (*fnc)(void);
  628.     fncptr_t fptr;
  629.    
  630.     symaddr = get_symbol_addr((char *) argv->buffer);
  631.     if (!symaddr)
  632.         printf("Symbol %s not found.\n", argv->buffer);
  633.     else if (symaddr == (uintptr_t) -1) {
  634.         symtab_print_search((char *) argv->buffer);
  635.         printf("Duplicate symbol, be more specific.\n");
  636.     } else {
  637.         symbol = get_symtab_entry(symaddr);
  638.         fnc = (unative_t (*)(void)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call0);
  639.         printf("Calling %s() (%p)\n", symbol, symaddr);
  640.         printf("Result: %#" PRIxn "\n", fnc());
  641.     }
  642.    
  643.     return 1;
  644. }
  645.  
  646. /** Call function with zero parameters on each CPU */
  647. int cmd_mcall0(cmd_arg_t *argv)
  648. {
  649.     /*
  650.      * For each CPU, create a thread which will
  651.      * call the function.
  652.      */
  653.    
  654.     count_t i;
  655.     for (i = 0; i < config.cpu_count; i++) {
  656.         if (!cpus[i].active)
  657.             continue;
  658.        
  659.         thread_t *t;
  660.         if ((t = thread_create((void (*)(void *)) cmd_call0, (void *) argv, TASK, THREAD_FLAG_WIRED, "call0", false))) {
  661.             spinlock_lock(&t->lock);
  662.             t->cpu = &cpus[i];
  663.             spinlock_unlock(&t->lock);
  664.             printf("cpu%u: ", i);
  665.             thread_ready(t);
  666.             thread_join(t);
  667.             thread_detach(t);
  668.         } else
  669.             printf("Unable to create thread for cpu%u\n", i);
  670.     }
  671.    
  672.     return 1;
  673. }
  674.  
  675. /** Call function with one parameter */
  676. int cmd_call1(cmd_arg_t *argv)
  677. {
  678.     uintptr_t symaddr;
  679.     char *symbol;
  680.     unative_t (*fnc)(unative_t, ...);
  681.     unative_t arg1 = argv[1].intval;
  682.     fncptr_t fptr;
  683.    
  684.     symaddr = get_symbol_addr((char *) argv->buffer);
  685.     if (!symaddr)
  686.         printf("Symbol %s not found.\n", argv->buffer);
  687.     else if (symaddr == (uintptr_t) -1) {
  688.         symtab_print_search((char *) argv->buffer);
  689.         printf("Duplicate symbol, be more specific.\n");
  690.     } else {
  691.         symbol = get_symtab_entry(symaddr);
  692.         fnc = (unative_t (*)(unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call1);
  693.         printf("Calling f(%#" PRIxn "): %p: %s\n", arg1, symaddr, symbol);
  694.         printf("Result: %#" PRIxn "\n", fnc(arg1));
  695.     }
  696.    
  697.     return 1;
  698. }
  699.  
  700. /** Call function with two parameters */
  701. int cmd_call2(cmd_arg_t *argv)
  702. {
  703.     uintptr_t symaddr;
  704.     char *symbol;
  705.     unative_t (*fnc)(unative_t, unative_t, ...);
  706.     unative_t arg1 = argv[1].intval;
  707.     unative_t arg2 = argv[2].intval;
  708.     fncptr_t fptr;
  709.    
  710.     symaddr = get_symbol_addr((char *) argv->buffer);
  711.     if (!symaddr)
  712.         printf("Symbol %s not found.\n", argv->buffer);
  713.     else if (symaddr == (uintptr_t) -1) {
  714.         symtab_print_search((char *) argv->buffer);
  715.         printf("Duplicate symbol, be more specific.\n");
  716.     } else {
  717.         symbol = get_symtab_entry(symaddr);
  718.         fnc = (unative_t (*)(unative_t, unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call2);
  719.         printf("Calling f(%#" PRIxn ", %#" PRIxn "): %p: %s\n",
  720.                arg1, arg2, symaddr, symbol);
  721.         printf("Result: %#" PRIxn "\n", fnc(arg1, arg2));
  722.     }
  723.    
  724.     return 1;
  725. }
  726.  
  727. /** Call function with three parameters */
  728. int cmd_call3(cmd_arg_t *argv)
  729. {
  730.     uintptr_t symaddr;
  731.     char *symbol;
  732.     unative_t (*fnc)(unative_t, unative_t, unative_t, ...);
  733.     unative_t arg1 = argv[1].intval;
  734.     unative_t arg2 = argv[2].intval;
  735.     unative_t arg3 = argv[3].intval;
  736.     fncptr_t fptr;
  737.    
  738.     symaddr = get_symbol_addr((char *) argv->buffer);
  739.     if (!symaddr)
  740.         printf("Symbol %s not found.\n", argv->buffer);
  741.     else if (symaddr == (uintptr_t) -1) {
  742.         symtab_print_search((char *) argv->buffer);
  743.         printf("Duplicate symbol, be more specific.\n");
  744.     } else {
  745.         symbol = get_symtab_entry(symaddr);
  746.         fnc = (unative_t (*)(unative_t, unative_t, unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call3);
  747.         printf("Calling f(%#" PRIxn ",%#" PRIxn ", %#" PRIxn "): %p: %s\n",
  748.                arg1, arg2, arg3, symaddr, symbol);
  749.         printf("Result: %#" PRIxn "\n", fnc(arg1, arg2, arg3));
  750.     }
  751.    
  752.     return 1;
  753. }
  754.  
  755.  
  756. /** Print detailed description of 'describe' command. */
  757. void desc_help(void)
  758. {
  759.     printf("Syntax: describe command_name\n");
  760. }
  761.  
  762. /** Halt the kernel.
  763.  *
  764.  * @param argv Argument vector (ignored).
  765.  *
  766.  * @return 0 on failure, 1 on success (never returns).
  767.  */
  768. int cmd_halt(cmd_arg_t *argv)
  769. {
  770.     halt();
  771.     return 1;
  772. }
  773.  
  774. /** Command for printing TLB contents.
  775.  *
  776.  * @param argv Not used.
  777.  *
  778.  * @return Always returns 1.
  779.  */
  780. int cmd_tlb(cmd_arg_t *argv)
  781. {
  782.     tlb_print();
  783.     return 1;
  784. }
  785.  
  786. /** Command for printing physical memory configuration.
  787.  *
  788.  * @param argv Not used.
  789.  *
  790.  * @return Always returns 1.
  791.  */
  792. int cmd_physmem(cmd_arg_t *argv)
  793. {
  794.     physmem_print();
  795.     return 1;
  796. }
  797.  
  798. /** Write 4 byte value to address */
  799. int cmd_set4(cmd_arg_t *argv)
  800. {
  801.     uint32_t *addr;
  802.     uint32_t arg1 = argv[1].intval;
  803.     bool pointer = false;
  804.  
  805.     if (((char *)argv->buffer)[0] == '*') {
  806.         addr = (uint32_t *) get_symbol_addr((char *) argv->buffer + 1);
  807.         pointer = true;
  808.     } else if (((char *) argv->buffer)[0] >= '0' &&
  809.            ((char *)argv->buffer)[0] <= '9')
  810.         addr = (uint32_t *)atoi((char *)argv->buffer);
  811.     else
  812.         addr = (uint32_t *)get_symbol_addr((char *) argv->buffer);
  813.  
  814.     if (!addr)
  815.         printf("Symbol %s not found.\n", argv->buffer);
  816.     else if (addr == (uint32_t *) -1) {
  817.         symtab_print_search((char *) argv->buffer);
  818.         printf("Duplicate symbol, be more specific.\n");
  819.     } else {
  820.         if (pointer)
  821.             addr = (uint32_t *)(*(unative_t *)addr);
  822.         printf("Writing %#" PRIx64 " -> %p\n", arg1, addr);
  823.         *addr = arg1;
  824.        
  825.     }
  826.    
  827.     return 1;
  828. }
  829.  
  830. /** Command for listings SLAB caches
  831.  *
  832.  * @param argv Ignores
  833.  *
  834.  * @return Always 1
  835.  */
  836. int cmd_slabs(cmd_arg_t * argv) {
  837.     slab_print_list();
  838.     return 1;
  839. }
  840.  
  841.  
  842. /** Command for listings Thread information
  843.  *
  844.  * @param argv Ignores
  845.  *
  846.  * @return Always 1
  847.  */
  848. int cmd_threads(cmd_arg_t * argv) {
  849.     thread_print_list();
  850.     return 1;
  851. }
  852.  
  853. /** Command for listings Task information
  854.  *
  855.  * @param argv Ignores
  856.  *
  857.  * @return Always 1
  858.  */
  859. int cmd_tasks(cmd_arg_t * argv) {
  860.     task_print_list();
  861.     return 1;
  862. }
  863.  
  864. /** Command for listings Thread information
  865.  *
  866.  * @param argv Ignores
  867.  *
  868.  * @return Always 1
  869.  */
  870. int cmd_sched(cmd_arg_t * argv) {
  871.     sched_print_list();
  872.     return 1;
  873. }
  874.  
  875. /** Command for listing memory zones
  876.  *
  877.  * @param argv Ignored
  878.  *
  879.  * return Always 1
  880.  */
  881. int cmd_zones(cmd_arg_t * argv) {
  882.     zone_print_list();
  883.     return 1;
  884. }
  885.  
  886. /** Command for memory zone details
  887.  *
  888.  * @param argv Integer argument from cmdline expected
  889.  *
  890.  * return Always 1
  891.  */
  892. int cmd_zone(cmd_arg_t * argv) {
  893.     zone_print_one(argv[0].intval);
  894.     return 1;
  895. }
  896.  
  897. /** Command for printing task ipc details
  898.  *
  899.  * @param argv Integer argument from cmdline expected
  900.  *
  901.  * return Always 1
  902.  */
  903. int cmd_ipc(cmd_arg_t * argv) {
  904.     ipc_print_task(argv[0].intval);
  905.     return 1;
  906. }
  907.  
  908.  
  909. /** Command for listing processors.
  910.  *
  911.  * @param argv Ignored.
  912.  *
  913.  * return Always 1.
  914.  */
  915. int cmd_cpus(cmd_arg_t *argv)
  916. {
  917.     cpu_list();
  918.     return 1;
  919. }
  920.  
  921. /** Command for printing kernel version.
  922.  *
  923.  * @param argv Ignored.
  924.  *
  925.  * return Always 1.
  926.  */
  927. int cmd_version(cmd_arg_t *argv)
  928. {
  929.     version_print();
  930.     return 1;
  931. }
  932.  
  933. /** Command for returning console back to userspace.
  934.  *
  935.  * @param argv Ignored.
  936.  *
  937.  * return Always 1.
  938.  */
  939. int cmd_continue(cmd_arg_t *argv)
  940. {
  941.     printf("The kernel will now relinquish the console.\n");
  942.     release_console();
  943.    
  944.     if ((kconsole_notify) && (kconsole_irq.notif_cfg.notify))
  945.         ipc_irq_send_msg_0(&kconsole_irq);
  946.    
  947.     return 1;
  948. }
  949.  
  950. #ifdef CONFIG_TEST
  951. /** Command for printing kernel tests list.
  952.  *
  953.  * @param argv Ignored.
  954.  *
  955.  * return Always 1.
  956.  */
  957. int cmd_tests(cmd_arg_t *argv)
  958. {
  959.     size_t len = 0;
  960.     test_t *test;
  961.     for (test = tests; test->name != NULL; test++) {
  962.         if (strlen(test->name) > len)
  963.             len = strlen(test->name);
  964.     }
  965.    
  966.     for (test = tests; test->name != NULL; test++)
  967.         printf("%-*s %s%s\n", len, test->name, test->desc, (test->safe ? "" : " (unsafe)"));
  968.    
  969.     printf("%-*s Run all safe tests\n", len, "*");
  970.     return 1;
  971. }
  972.  
  973. static bool run_test(const test_t *test)
  974. {
  975.     printf("%s (%s)\n", test->name, test->desc);
  976.    
  977.     /* Update and read thread accounting
  978.        for benchmarking */
  979.     ipl_t ipl = interrupts_disable();
  980.     spinlock_lock(&TASK->lock);
  981.     uint64_t t0 = task_get_accounting(TASK);
  982.     spinlock_unlock(&TASK->lock);
  983.     interrupts_restore(ipl);
  984.    
  985.     /* Execute the test */
  986.     char * ret = test->entry(false);
  987.    
  988.     /* Update and read thread accounting */
  989.     ipl = interrupts_disable();
  990.     spinlock_lock(&TASK->lock);
  991.     uint64_t dt = task_get_accounting(TASK) - t0;
  992.     spinlock_unlock(&TASK->lock);
  993.     interrupts_restore(ipl);
  994.    
  995.     uint64_t cycles;
  996.     char suffix;
  997.     order(dt, &cycles, &suffix);
  998.        
  999.     printf("Time: %" PRIu64 "%c cycles\n", cycles, suffix);
  1000.    
  1001.     if (ret == NULL) {
  1002.         printf("Test passed\n");
  1003.         return true;
  1004.     }
  1005.  
  1006.     printf("%s\n", ret);
  1007.     return false;
  1008. }
  1009.  
  1010. static bool run_bench(const test_t *test, const uint32_t cnt)
  1011. {
  1012.     uint32_t i;
  1013.     bool ret = true;
  1014.     uint64_t cycles;
  1015.     char suffix;
  1016.    
  1017.     if (cnt < 1)
  1018.         return true;
  1019.    
  1020.     uint64_t *data = (uint64_t *) malloc(sizeof(uint64_t) * cnt, 0);
  1021.     if (data == NULL) {
  1022.         printf("Error allocating memory for statistics\n");
  1023.         return false;
  1024.     }
  1025.    
  1026.     for (i = 0; i < cnt; i++) {
  1027.         printf("%s (%u/%u) ... ", test->name, i + 1, cnt);
  1028.        
  1029.         /* Update and read thread accounting
  1030.            for benchmarking */
  1031.         ipl_t ipl = interrupts_disable();
  1032.         spinlock_lock(&TASK->lock);
  1033.         uint64_t t0 = task_get_accounting(TASK);
  1034.         spinlock_unlock(&TASK->lock);
  1035.         interrupts_restore(ipl);
  1036.        
  1037.         /* Execute the test */
  1038.         char * ret = test->entry(true);
  1039.        
  1040.         /* Update and read thread accounting */
  1041.         ipl = interrupts_disable();
  1042.         spinlock_lock(&TASK->lock);
  1043.         uint64_t dt = task_get_accounting(TASK) - t0;
  1044.         spinlock_unlock(&TASK->lock);
  1045.         interrupts_restore(ipl);
  1046.        
  1047.         if (ret != NULL) {
  1048.             printf("%s\n", ret);
  1049.             ret = false;
  1050.             break;
  1051.         }
  1052.        
  1053.         data[i] = dt;
  1054.         order(dt, &cycles, &suffix);
  1055.         printf("OK (%" PRIu64 "%c cycles)\n", cycles, suffix);
  1056.     }
  1057.    
  1058.     if (ret) {
  1059.         printf("\n");
  1060.        
  1061.         uint64_t sum = 0;
  1062.        
  1063.         for (i = 0; i < cnt; i++) {
  1064.             sum += data[i];
  1065.         }
  1066.        
  1067.         order(sum / (uint64_t) cnt, &cycles, &suffix);
  1068.         printf("Average\t\t%" PRIu64 "%c\n", cycles, suffix);
  1069.     }
  1070.    
  1071.     free(data);
  1072.    
  1073.     return ret;
  1074. }
  1075.  
  1076. /** Command for returning kernel tests
  1077.  *
  1078.  * @param argv Argument vector.
  1079.  *
  1080.  * return Always 1.
  1081.  */
  1082. int cmd_test(cmd_arg_t *argv)
  1083. {
  1084.     test_t *test;
  1085.    
  1086.     if (strcmp((char *) argv->buffer, "*") == 0) {
  1087.         for (test = tests; test->name != NULL; test++) {
  1088.             if (test->safe) {
  1089.                 printf("\n");
  1090.                 if (!run_test(test))
  1091.                     break;
  1092.             }
  1093.         }
  1094.     } else {
  1095.         bool fnd = false;
  1096.        
  1097.         for (test = tests; test->name != NULL; test++) {
  1098.             if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1099.                 fnd = true;
  1100.                 run_test(test);
  1101.                 break;
  1102.             }
  1103.         }
  1104.        
  1105.         if (!fnd)
  1106.             printf("Unknown test\n");
  1107.     }
  1108.    
  1109.     return 1;
  1110. }
  1111.  
  1112. /** Command for returning kernel tests as benchmarks
  1113.  *
  1114.  * @param argv Argument vector.
  1115.  *
  1116.  * return Always 1.
  1117.  */
  1118. int cmd_bench(cmd_arg_t *argv)
  1119. {
  1120.     test_t *test;
  1121.     uint32_t cnt = argv[1].intval;
  1122.    
  1123.     bool fnd = false;
  1124.    
  1125.     for (test = tests; test->name != NULL; test++) {
  1126.         if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1127.             fnd = true;
  1128.            
  1129.             if (test->safe)
  1130.                 run_bench(test, cnt);
  1131.             else
  1132.                 printf("Unsafe test\n");
  1133.            
  1134.             break;
  1135.         }
  1136.     }
  1137.        
  1138.     if (!fnd)
  1139.         printf("Unknown test\n");
  1140.  
  1141.     return 1;
  1142. }
  1143.  
  1144. #endif
  1145.  
  1146. /** @}
  1147.  */
  1148.