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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.             panic("could not 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 (*f)(void);
  620. #ifdef ia64
  621.     struct {
  622.         unative_t f;
  623.         unative_t gp;
  624.     } fptr;
  625. #endif
  626.  
  627.     symaddr = get_symbol_addr((char *) argv->buffer);
  628.     if (!symaddr)
  629.         printf("Symbol %s not found.\n", argv->buffer);
  630.     else if (symaddr == (uintptr_t) -1) {
  631.         symtab_print_search((char *) argv->buffer);
  632.         printf("Duplicate symbol, be more specific.\n");
  633.     } else {
  634.         symbol = get_symtab_entry(symaddr);
  635.         printf("Calling %s() (%p)\n", symbol, symaddr);
  636. #ifdef ia64
  637.         fptr.f = symaddr;
  638.         fptr.gp = ((unative_t *)cmd_call2)[1];
  639.         f =  (unative_t (*)(void)) &fptr;
  640. #else
  641.         f =  (unative_t (*)(void)) symaddr;
  642. #endif
  643.         printf("Result: %#" PRIxn "\n", f());
  644.     }
  645.    
  646.     return 1;
  647. }
  648.  
  649. /** Call function with zero parameters on each CPU */
  650. int cmd_mcall0(cmd_arg_t *argv)
  651. {
  652.     /*
  653.      * For each CPU, create a thread which will
  654.      * call the function.
  655.      */
  656.    
  657.     count_t i;
  658.     for (i = 0; i < config.cpu_count; i++) {
  659.         if (!cpus[i].active)
  660.             continue;
  661.        
  662.         thread_t *t;
  663.         if ((t = thread_create((void (*)(void *)) cmd_call0, (void *) argv, TASK, THREAD_FLAG_WIRED, "call0", false))) {
  664.             spinlock_lock(&t->lock);
  665.             t->cpu = &cpus[i];
  666.             spinlock_unlock(&t->lock);
  667.             printf("cpu%u: ", i);
  668.             thread_ready(t);
  669.             thread_join(t);
  670.             thread_detach(t);
  671.         } else
  672.             printf("Unable to create thread for cpu%u\n", i);
  673.     }
  674.    
  675.     return 1;
  676. }
  677.  
  678. /** Call function with one parameter */
  679. int cmd_call1(cmd_arg_t *argv)
  680. {
  681.     uintptr_t symaddr;
  682.     char *symbol;
  683.     unative_t (*f)(unative_t,...);
  684.     unative_t arg1 = argv[1].intval;
  685. #ifdef ia64
  686.     struct {
  687.         unative_t f;
  688.         unative_t gp;
  689.     } fptr;
  690. #endif
  691.  
  692.     symaddr = get_symbol_addr((char *) argv->buffer);
  693.     if (!symaddr)
  694.         printf("Symbol %s not found.\n", argv->buffer);
  695.     else if (symaddr == (uintptr_t) -1) {
  696.         symtab_print_search((char *) argv->buffer);
  697.         printf("Duplicate symbol, be more specific.\n");
  698.     } else {
  699.         symbol = get_symtab_entry(symaddr);
  700.  
  701.         printf("Calling f(%#" PRIxn "): %p: %s\n", arg1, symaddr, symbol);
  702. #ifdef ia64
  703.         fptr.f = symaddr;
  704.         fptr.gp = ((unative_t *)cmd_call2)[1];
  705.         f =  (unative_t (*)(unative_t,...)) &fptr;
  706. #else
  707.         f =  (unative_t (*)(unative_t,...)) symaddr;
  708. #endif
  709.         printf("Result: %#" PRIxn "\n", f(arg1));
  710.     }
  711.    
  712.     return 1;
  713. }
  714.  
  715. /** Call function with two parameters */
  716. int cmd_call2(cmd_arg_t *argv)
  717. {
  718.     uintptr_t symaddr;
  719.     char *symbol;
  720.     unative_t (*f)(unative_t,unative_t,...);
  721.     unative_t arg1 = argv[1].intval;
  722.     unative_t arg2 = argv[2].intval;
  723. #ifdef ia64
  724.     struct {
  725.         unative_t f;
  726.         unative_t gp;
  727.     }fptr;
  728. #endif
  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.         printf("Calling f(%#" PRIxn ", %#" PRIxn "): %p: %s\n",
  739.                arg1, arg2, symaddr, symbol);
  740. #ifdef ia64
  741.         fptr.f = symaddr;
  742.         fptr.gp = ((unative_t *)cmd_call2)[1];
  743.         f =  (unative_t (*)(unative_t,unative_t,...)) &fptr;
  744. #else
  745.         f =  (unative_t (*)(unative_t,unative_t,...)) symaddr;
  746. #endif
  747.         printf("Result: %#" PRIxn "\n", f(arg1, arg2));
  748.     }
  749.    
  750.     return 1;
  751. }
  752.  
  753. /** Call function with three parameters */
  754. int cmd_call3(cmd_arg_t *argv)
  755. {
  756.     uintptr_t symaddr;
  757.     char *symbol;
  758.     unative_t (*f)(unative_t,unative_t,unative_t,...);
  759.     unative_t arg1 = argv[1].intval;
  760.     unative_t arg2 = argv[2].intval;
  761.     unative_t arg3 = argv[3].intval;
  762. #ifdef ia64
  763.     struct {
  764.         unative_t f;
  765.         unative_t gp;
  766.     }fptr;
  767. #endif
  768.  
  769.     symaddr = get_symbol_addr((char *) argv->buffer);
  770.     if (!symaddr)
  771.         printf("Symbol %s not found.\n", argv->buffer);
  772.     else if (symaddr == (uintptr_t) -1) {
  773.         symtab_print_search((char *) argv->buffer);
  774.         printf("Duplicate symbol, be more specific.\n");
  775.     } else {
  776.         symbol = get_symtab_entry(symaddr);
  777.         printf("Calling f(%#" PRIxn ",%#" PRIxn ", %#" PRIxn "): %p: %s\n",
  778.                arg1, arg2, arg3, symaddr, symbol);
  779. #ifdef ia64
  780.         fptr.f = symaddr;
  781.         fptr.gp = ((unative_t *)cmd_call2)[1];
  782.         f =  (unative_t (*)(unative_t,unative_t,unative_t,...)) &fptr;
  783. #else
  784.         f =  (unative_t (*)(unative_t,unative_t,unative_t,...)) symaddr;
  785. #endif
  786.         printf("Result: %#" PRIxn "\n", f(arg1, arg2, arg3));
  787.     }
  788.    
  789.     return 1;
  790. }
  791.  
  792.  
  793. /** Print detailed description of 'describe' command. */
  794. void desc_help(void)
  795. {
  796.     printf("Syntax: describe command_name\n");
  797. }
  798.  
  799. /** Halt the kernel.
  800.  *
  801.  * @param argv Argument vector (ignored).
  802.  *
  803.  * @return 0 on failure, 1 on success (never returns).
  804.  */
  805. int cmd_halt(cmd_arg_t *argv)
  806. {
  807.     halt();
  808.     return 1;
  809. }
  810.  
  811. /** Command for printing TLB contents.
  812.  *
  813.  * @param argv Not used.
  814.  *
  815.  * @return Always returns 1.
  816.  */
  817. int cmd_tlb(cmd_arg_t *argv)
  818. {
  819.     tlb_print();
  820.     return 1;
  821. }
  822.  
  823. /** Command for printing physical memory configuration.
  824.  *
  825.  * @param argv Not used.
  826.  *
  827.  * @return Always returns 1.
  828.  */
  829. int cmd_physmem(cmd_arg_t *argv)
  830. {
  831.     physmem_print();
  832.     return 1;
  833. }
  834.  
  835. /** Write 4 byte value to address */
  836. int cmd_set4(cmd_arg_t *argv)
  837. {
  838.     uint32_t *addr;
  839.     uint32_t arg1 = argv[1].intval;
  840.     bool pointer = false;
  841.  
  842.     if (((char *)argv->buffer)[0] == '*') {
  843.         addr = (uint32_t *) get_symbol_addr((char *) argv->buffer + 1);
  844.         pointer = true;
  845.     } else if (((char *) argv->buffer)[0] >= '0' &&
  846.            ((char *)argv->buffer)[0] <= '9')
  847.         addr = (uint32_t *)atoi((char *)argv->buffer);
  848.     else
  849.         addr = (uint32_t *)get_symbol_addr((char *) argv->buffer);
  850.  
  851.     if (!addr)
  852.         printf("Symbol %s not found.\n", argv->buffer);
  853.     else if (addr == (uint32_t *) -1) {
  854.         symtab_print_search((char *) argv->buffer);
  855.         printf("Duplicate symbol, be more specific.\n");
  856.     } else {
  857.         if (pointer)
  858.             addr = (uint32_t *)(*(unative_t *)addr);
  859.         printf("Writing %#" PRIx64 " -> %p\n", arg1, addr);
  860.         *addr = arg1;
  861.        
  862.     }
  863.    
  864.     return 1;
  865. }
  866.  
  867. /** Command for listings SLAB caches
  868.  *
  869.  * @param argv Ignores
  870.  *
  871.  * @return Always 1
  872.  */
  873. int cmd_slabs(cmd_arg_t * argv) {
  874.     slab_print_list();
  875.     return 1;
  876. }
  877.  
  878.  
  879. /** Command for listings Thread information
  880.  *
  881.  * @param argv Ignores
  882.  *
  883.  * @return Always 1
  884.  */
  885. int cmd_threads(cmd_arg_t * argv) {
  886.     thread_print_list();
  887.     return 1;
  888. }
  889.  
  890. /** Command for listings Task information
  891.  *
  892.  * @param argv Ignores
  893.  *
  894.  * @return Always 1
  895.  */
  896. int cmd_tasks(cmd_arg_t * argv) {
  897.     task_print_list();
  898.     return 1;
  899. }
  900.  
  901. /** Command for listings Thread information
  902.  *
  903.  * @param argv Ignores
  904.  *
  905.  * @return Always 1
  906.  */
  907. int cmd_sched(cmd_arg_t * argv) {
  908.     sched_print_list();
  909.     return 1;
  910. }
  911.  
  912. /** Command for listing memory zones
  913.  *
  914.  * @param argv Ignored
  915.  *
  916.  * return Always 1
  917.  */
  918. int cmd_zones(cmd_arg_t * argv) {
  919.     zone_print_list();
  920.     return 1;
  921. }
  922.  
  923. /** Command for memory zone details
  924.  *
  925.  * @param argv Integer argument from cmdline expected
  926.  *
  927.  * return Always 1
  928.  */
  929. int cmd_zone(cmd_arg_t * argv) {
  930.     zone_print_one(argv[0].intval);
  931.     return 1;
  932. }
  933.  
  934. /** Command for printing task ipc details
  935.  *
  936.  * @param argv Integer argument from cmdline expected
  937.  *
  938.  * return Always 1
  939.  */
  940. int cmd_ipc(cmd_arg_t * argv) {
  941.     ipc_print_task(argv[0].intval);
  942.     return 1;
  943. }
  944.  
  945.  
  946. /** Command for listing processors.
  947.  *
  948.  * @param argv Ignored.
  949.  *
  950.  * return Always 1.
  951.  */
  952. int cmd_cpus(cmd_arg_t *argv)
  953. {
  954.     cpu_list();
  955.     return 1;
  956. }
  957.  
  958. /** Command for printing kernel version.
  959.  *
  960.  * @param argv Ignored.
  961.  *
  962.  * return Always 1.
  963.  */
  964. int cmd_version(cmd_arg_t *argv)
  965. {
  966.     version_print();
  967.     return 1;
  968. }
  969.  
  970. /** Command for returning console back to userspace.
  971.  *
  972.  * @param argv Ignored.
  973.  *
  974.  * return Always 1.
  975.  */
  976. int cmd_continue(cmd_arg_t *argv)
  977. {
  978.     printf("The kernel will now relinquish the console.\n");
  979.     printf("Use userspace controls to redraw the screen.\n");
  980.     arch_release_console();
  981.     return 1;
  982. }
  983.  
  984. #ifdef CONFIG_TEST
  985. /** Command for printing kernel tests list.
  986.  *
  987.  * @param argv Ignored.
  988.  *
  989.  * return Always 1.
  990.  */
  991. int cmd_tests(cmd_arg_t *argv)
  992. {
  993.     test_t *test;
  994.    
  995.     for (test = tests; test->name != NULL; test++)
  996.         printf("%s\t\t%s%s\n", test->name, test->desc, (test->safe ? "" : " (unsafe)"));
  997.    
  998.     printf("*\t\tRun all safe tests\n");
  999.     return 1;
  1000. }
  1001.  
  1002. static bool run_test(const test_t *test)
  1003. {
  1004.     printf("%s\t\t%s\n", test->name, test->desc);
  1005.    
  1006.     /* Update and read thread accounting
  1007.        for benchmarking */
  1008.     ipl_t ipl = interrupts_disable();
  1009.     spinlock_lock(&TASK->lock);
  1010.     uint64_t t0 = task_get_accounting(TASK);
  1011.     spinlock_unlock(&TASK->lock);
  1012.     interrupts_restore(ipl);
  1013.    
  1014.     /* Execute the test */
  1015.     char * ret = test->entry(false);
  1016.    
  1017.     /* Update and read thread accounting */
  1018.     ipl = interrupts_disable();
  1019.     spinlock_lock(&TASK->lock);
  1020.     uint64_t dt = task_get_accounting(TASK) - t0;
  1021.     spinlock_unlock(&TASK->lock);
  1022.     interrupts_restore(ipl);
  1023.    
  1024.     uint64_t cycles;
  1025.     char suffix;
  1026.     order(dt, &cycles, &suffix);
  1027.        
  1028.     printf("Time: %" PRIu64 "%c cycles\n", cycles, suffix);
  1029.    
  1030.     if (ret == NULL) {
  1031.         printf("Test passed\n");
  1032.         return true;
  1033.     }
  1034.  
  1035.     printf("%s\n", ret);
  1036.     return false;
  1037. }
  1038.  
  1039. static bool run_bench(const test_t *test, const uint32_t cnt)
  1040. {
  1041.     uint32_t i;
  1042.     bool ret = true;
  1043.     uint64_t cycles;
  1044.     char suffix;
  1045.    
  1046.     if (cnt < 1)
  1047.         return true;
  1048.    
  1049.     uint64_t *data = (uint64_t *) malloc(sizeof(uint64_t) * cnt, 0);
  1050.     if (data == NULL) {
  1051.         printf("Error allocating memory for statistics\n");
  1052.         return false;
  1053.     }
  1054.    
  1055.     for (i = 0; i < cnt; i++) {
  1056.         printf("%s (%u/%u) ... ", test->name, i + 1, cnt);
  1057.        
  1058.         /* Update and read thread accounting
  1059.            for benchmarking */
  1060.         ipl_t ipl = interrupts_disable();
  1061.         spinlock_lock(&TASK->lock);
  1062.         uint64_t t0 = task_get_accounting(TASK);
  1063.         spinlock_unlock(&TASK->lock);
  1064.         interrupts_restore(ipl);
  1065.        
  1066.         /* Execute the test */
  1067.         char * ret = test->entry(true);
  1068.        
  1069.         /* Update and read thread accounting */
  1070.         ipl = interrupts_disable();
  1071.         spinlock_lock(&TASK->lock);
  1072.         uint64_t dt = task_get_accounting(TASK) - t0;
  1073.         spinlock_unlock(&TASK->lock);
  1074.         interrupts_restore(ipl);
  1075.        
  1076.         if (ret != NULL) {
  1077.             printf("%s\n", ret);
  1078.             ret = false;
  1079.             break;
  1080.         }
  1081.        
  1082.         data[i] = dt;
  1083.         order(dt, &cycles, &suffix);
  1084.         printf("OK (%" PRIu64 "%c cycles)\n", cycles, suffix);
  1085.     }
  1086.    
  1087.     if (ret) {
  1088.         printf("\n");
  1089.        
  1090.         uint64_t sum = 0;
  1091.        
  1092.         for (i = 0; i < cnt; i++) {
  1093.             sum += data[i];
  1094.         }
  1095.        
  1096.         order(sum / (uint64_t) cnt, &cycles, &suffix);
  1097.         printf("Average\t\t%" PRIu64 "%c\n", cycles, suffix);
  1098.     }
  1099.    
  1100.     free(data);
  1101.    
  1102.     return ret;
  1103. }
  1104.  
  1105. /** Command for returning kernel tests
  1106.  *
  1107.  * @param argv Argument vector.
  1108.  *
  1109.  * return Always 1.
  1110.  */
  1111. int cmd_test(cmd_arg_t *argv)
  1112. {
  1113.     test_t *test;
  1114.    
  1115.     if (strcmp((char *) argv->buffer, "*") == 0) {
  1116.         for (test = tests; test->name != NULL; test++) {
  1117.             if (test->safe) {
  1118.                 printf("\n");
  1119.                 if (!run_test(test))
  1120.                     break;
  1121.             }
  1122.         }
  1123.     } else {
  1124.         bool fnd = false;
  1125.        
  1126.         for (test = tests; test->name != NULL; test++) {
  1127.             if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1128.                 fnd = true;
  1129.                 run_test(test);
  1130.                 break;
  1131.             }
  1132.         }
  1133.        
  1134.         if (!fnd)
  1135.             printf("Unknown test\n");
  1136.     }
  1137.    
  1138.     return 1;
  1139. }
  1140.  
  1141. /** Command for returning kernel tests as benchmarks
  1142.  *
  1143.  * @param argv Argument vector.
  1144.  *
  1145.  * return Always 1.
  1146.  */
  1147. int cmd_bench(cmd_arg_t *argv)
  1148. {
  1149.     test_t *test;
  1150.     uint32_t cnt = argv[1].intval;
  1151.    
  1152.     bool fnd = false;
  1153.    
  1154.     for (test = tests; test->name != NULL; test++) {
  1155.         if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1156.             fnd = true;
  1157.            
  1158.             if (test->safe)
  1159.                 run_bench(test, cnt);
  1160.             else
  1161.                 printf("Unsafe test\n");
  1162.            
  1163.             break;
  1164.         }
  1165.     }
  1166.        
  1167.     if (!fnd)
  1168.         printf("Unknown test\n");
  1169.  
  1170.     return 1;
  1171. }
  1172.  
  1173. #endif
  1174.  
  1175. /** @}
  1176.  */
  1177.