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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 'tlb' command. */
  338. static int cmd_tlb(cmd_arg_t *argv);
  339. cmd_info_t tlb_info = {
  340.     .name = "tlb",
  341.     .description = "Print TLB of current processor.",
  342.     .help = NULL,
  343.     .func = cmd_tlb,
  344.     .argc = 0,
  345.     .argv = NULL
  346. };
  347.  
  348. static int cmd_threads(cmd_arg_t *argv);
  349. static cmd_info_t threads_info = {
  350.     .name = "threads",
  351.     .description = "List all threads.",
  352.     .func = cmd_threads,
  353.     .argc = 0
  354. };
  355.  
  356. static int cmd_tasks(cmd_arg_t *argv);
  357. static cmd_info_t tasks_info = {
  358.     .name = "tasks",
  359.     .description = "List all tasks.",
  360.     .func = cmd_tasks,
  361.     .argc = 0
  362. };
  363.  
  364.  
  365. static int cmd_sched(cmd_arg_t *argv);
  366. static cmd_info_t sched_info = {
  367.     .name = "scheduler",
  368.     .description = "List all scheduler information.",
  369.     .func = cmd_sched,
  370.     .argc = 0
  371. };
  372.  
  373. static int cmd_slabs(cmd_arg_t *argv);
  374. static cmd_info_t slabs_info = {
  375.     .name = "slabs",
  376.     .description = "List slab caches.",
  377.     .func = cmd_slabs,
  378.     .argc = 0
  379. };
  380.  
  381. /* Data and methods for 'zones' command */
  382. static int cmd_zones(cmd_arg_t *argv);
  383. static cmd_info_t zones_info = {
  384.     .name = "zones",
  385.     .description = "List of memory zones.",
  386.     .func = cmd_zones,
  387.     .argc = 0
  388. };
  389.  
  390. /* Data and methods for 'ipc_task' command */
  391. static int cmd_ipc_task(cmd_arg_t *argv);
  392. static cmd_arg_t ipc_task_argv = {
  393.     .type = ARG_TYPE_INT,
  394. };
  395. static cmd_info_t ipc_task_info = {
  396.     .name = "ipc_task",
  397.     .description = "ipc_task <taskid> Show IPC information of given task.",
  398.     .func = cmd_ipc_task,
  399.     .argc = 1,
  400.     .argv = &ipc_task_argv
  401. };
  402.  
  403. /* Data and methods for 'zone' command */
  404. static int cmd_zone(cmd_arg_t *argv);
  405. static cmd_arg_t zone_argv = {
  406.     .type = ARG_TYPE_INT,
  407. };
  408.  
  409. static cmd_info_t zone_info = {
  410.     .name = "zone",
  411.     .description = "Show memory zone structure.",
  412.     .func = cmd_zone,
  413.     .argc = 1,
  414.     .argv = &zone_argv
  415. };
  416.  
  417. /* Data and methods for 'cpus' command. */
  418. static int cmd_cpus(cmd_arg_t *argv);
  419. cmd_info_t cpus_info = {
  420.     .name = "cpus",
  421.     .description = "List all processors.",
  422.     .help = NULL,
  423.     .func = cmd_cpus,
  424.     .argc = 0,
  425.     .argv = NULL
  426. };
  427.  
  428. /* Data and methods for 'version' command. */
  429. static int cmd_version(cmd_arg_t *argv);
  430. cmd_info_t version_info = {
  431.     .name = "version",
  432.     .description = "Print version information.",
  433.     .help = NULL,
  434.     .func = cmd_version,
  435.     .argc = 0,
  436.     .argv = NULL
  437. };
  438.  
  439. static cmd_info_t *basic_commands[] = {
  440.     &call0_info,
  441.     &mcall0_info,
  442.     &call1_info,
  443.     &call2_info,
  444.     &call3_info,
  445.     &continue_info,
  446.     &cpus_info,
  447.     &desc_info,
  448.     &exit_info,
  449.     &reboot_info,
  450.     &uptime_info,
  451.     &halt_info,
  452.     &help_info,
  453.     &ipc_task_info,
  454.     &set4_info,
  455.     &slabs_info,
  456.     &symaddr_info,
  457.     &sched_info,
  458.     &threads_info,
  459.     &tasks_info,
  460.     &tlb_info,
  461.     &version_info,
  462.     &zones_info,
  463.     &zone_info,
  464. #ifdef CONFIG_TEST
  465.     &tests_info,
  466.     &test_info,
  467.     &bench_info,
  468. #endif
  469.     NULL
  470. };
  471.  
  472.  
  473. /** Initialize command info structure.
  474.  *
  475.  * @param cmd Command info structure.
  476.  *
  477.  */
  478. void cmd_initialize(cmd_info_t *cmd)
  479. {
  480.     spinlock_initialize(&cmd->lock, "cmd");
  481.     link_initialize(&cmd->link);
  482. }
  483.  
  484. /** Initialize and register commands. */
  485. void cmd_init(void)
  486. {
  487.     int i;
  488.  
  489.     for (i=0;basic_commands[i]; i++) {
  490.         cmd_initialize(basic_commands[i]);
  491.         if (!cmd_register(basic_commands[i]))
  492.             panic("could not register command %s\n",
  493.                   basic_commands[i]->name);
  494.     }
  495. }
  496.  
  497.  
  498. /** List supported commands.
  499.  *
  500.  * @param argv Argument vector.
  501.  *
  502.  * @return 0 on failure, 1 on success.
  503.  */
  504. int cmd_help(cmd_arg_t *argv)
  505. {
  506.     link_t *cur;
  507.  
  508.     spinlock_lock(&cmd_lock);
  509.    
  510.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  511.         cmd_info_t *hlp;
  512.        
  513.         hlp = list_get_instance(cur, cmd_info_t, link);
  514.         spinlock_lock(&hlp->lock);
  515.        
  516.         printf("%s - %s\n", hlp->name, hlp->description);
  517.  
  518.         spinlock_unlock(&hlp->lock);
  519.     }
  520.    
  521.     spinlock_unlock(&cmd_lock);
  522.  
  523.     return 1;
  524. }
  525.  
  526.  
  527. /** Reboot the system.
  528.  *
  529.  * @param argv Argument vector.
  530.  *
  531.  * @return 0 on failure, 1 on success.
  532.  */
  533. int cmd_reboot(cmd_arg_t *argv)
  534. {
  535.     reboot();
  536.    
  537.     /* Not reached */
  538.     return 1;
  539. }
  540.  
  541.  
  542. /** Print system uptime information.
  543.  *
  544.  * @param argv Argument vector.
  545.  *
  546.  * @return 0 on failure, 1 on success.
  547.  */
  548. int cmd_uptime(cmd_arg_t *argv)
  549. {
  550.     ASSERT(uptime);
  551.    
  552.     /* This doesn't have to be very accurate */
  553.     unative_t sec = uptime->seconds1;
  554.    
  555.     printf("Up %u days, %u hours, %u minutes, %u seconds\n",
  556.         sec / 86400, (sec % 86400) / 3600, (sec % 3600) / 60, sec % 60);
  557.    
  558.     return 1;
  559. }
  560.  
  561. /** Describe specified command.
  562.  *
  563.  * @param argv Argument vector.
  564.  *
  565.  * @return 0 on failure, 1 on success.
  566.  */
  567. int cmd_desc(cmd_arg_t *argv)
  568. {
  569.     link_t *cur;
  570.  
  571.     spinlock_lock(&cmd_lock);
  572.    
  573.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  574.         cmd_info_t *hlp;
  575.        
  576.         hlp = list_get_instance(cur, cmd_info_t, link);
  577.         spinlock_lock(&hlp->lock);
  578.  
  579.         if (strncmp(hlp->name, (const char *) argv->buffer, strlen(hlp->name)) == 0) {
  580.             printf("%s - %s\n", hlp->name, hlp->description);
  581.             if (hlp->help)
  582.                 hlp->help();
  583.             spinlock_unlock(&hlp->lock);
  584.             break;
  585.         }
  586.  
  587.         spinlock_unlock(&hlp->lock);
  588.     }
  589.    
  590.     spinlock_unlock(&cmd_lock);
  591.  
  592.     return 1;
  593. }
  594.  
  595. /** Search symbol table */
  596. int cmd_symaddr(cmd_arg_t *argv)
  597. {
  598.     symtab_print_search((char *) argv->buffer);
  599.    
  600.     return 1;
  601. }
  602.  
  603. /** Call function with zero parameters */
  604. int cmd_call0(cmd_arg_t *argv)
  605. {
  606.     uintptr_t symaddr;
  607.     char *symbol;
  608.     unative_t (*f)(void);
  609. #ifdef ia64
  610.     struct {
  611.         unative_t f;
  612.         unative_t gp;
  613.     } fptr;
  614. #endif
  615.  
  616.     symaddr = get_symbol_addr((char *) argv->buffer);
  617.     if (!symaddr)
  618.         printf("Symbol %s not found.\n", argv->buffer);
  619.     else if (symaddr == (uintptr_t) -1) {
  620.         symtab_print_search((char *) argv->buffer);
  621.         printf("Duplicate symbol, be more specific.\n");
  622.     } else {
  623.         symbol = get_symtab_entry(symaddr);
  624.         printf("Calling %s() (%.*p)\n", symbol, sizeof(uintptr_t) * 2, symaddr);
  625. #ifdef ia64
  626.         fptr.f = symaddr;
  627.         fptr.gp = ((unative_t *)cmd_call2)[1];
  628.         f =  (unative_t (*)(void)) &fptr;
  629. #else
  630.         f =  (unative_t (*)(void)) symaddr;
  631. #endif
  632.         printf("Result: %#zx\n", f());
  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 (*f)(unative_t,...);
  673.     unative_t arg1 = argv[1].intval;
  674. #ifdef ia64
  675.     struct {
  676.         unative_t f;
  677.         unative_t gp;
  678.     }fptr;
  679. #endif
  680.  
  681.     symaddr = get_symbol_addr((char *) argv->buffer);
  682.     if (!symaddr)
  683.         printf("Symbol %s not found.\n", argv->buffer);
  684.     else if (symaddr == (uintptr_t) -1) {
  685.         symtab_print_search((char *) argv->buffer);
  686.         printf("Duplicate symbol, be more specific.\n");
  687.     } else {
  688.         symbol = get_symtab_entry(symaddr);
  689.  
  690.         printf("Calling f(%#zx): %.*p: %s\n", arg1, sizeof(uintptr_t) * 2, symaddr, symbol);
  691. #ifdef ia64
  692.         fptr.f = symaddr;
  693.         fptr.gp = ((unative_t *)cmd_call2)[1];
  694.         f =  (unative_t (*)(unative_t,...)) &fptr;
  695. #else
  696.         f =  (unative_t (*)(unative_t,...)) symaddr;
  697. #endif
  698.         printf("Result: %#zx\n", f(arg1));
  699.     }
  700.    
  701.     return 1;
  702. }
  703.  
  704. /** Call function with two parameters */
  705. int cmd_call2(cmd_arg_t *argv)
  706. {
  707.     uintptr_t symaddr;
  708.     char *symbol;
  709.     unative_t (*f)(unative_t,unative_t,...);
  710.     unative_t arg1 = argv[1].intval;
  711.     unative_t arg2 = argv[2].intval;
  712. #ifdef ia64
  713.     struct {
  714.         unative_t f;
  715.         unative_t gp;
  716.     }fptr;
  717. #endif
  718.  
  719.     symaddr = get_symbol_addr((char *) argv->buffer);
  720.     if (!symaddr)
  721.         printf("Symbol %s not found.\n", argv->buffer);
  722.     else if (symaddr == (uintptr_t) -1) {
  723.         symtab_print_search((char *) argv->buffer);
  724.         printf("Duplicate symbol, be more specific.\n");
  725.     } else {
  726.         symbol = get_symtab_entry(symaddr);
  727.         printf("Calling f(0x%zx,0x%zx): %.*p: %s\n",
  728.                arg1, arg2, sizeof(uintptr_t) * 2, symaddr, symbol);
  729. #ifdef ia64
  730.         fptr.f = symaddr;
  731.         fptr.gp = ((unative_t *)cmd_call2)[1];
  732.         f =  (unative_t (*)(unative_t,unative_t,...)) &fptr;
  733. #else
  734.         f =  (unative_t (*)(unative_t,unative_t,...)) symaddr;
  735. #endif
  736.         printf("Result: %#zx\n", f(arg1, arg2));
  737.     }
  738.    
  739.     return 1;
  740. }
  741.  
  742. /** Call function with three parameters */
  743. int cmd_call3(cmd_arg_t *argv)
  744. {
  745.     uintptr_t symaddr;
  746.     char *symbol;
  747.     unative_t (*f)(unative_t,unative_t,unative_t,...);
  748.     unative_t arg1 = argv[1].intval;
  749.     unative_t arg2 = argv[2].intval;
  750.     unative_t arg3 = argv[3].intval;
  751. #ifdef ia64
  752.     struct {
  753.         unative_t f;
  754.         unative_t gp;
  755.     }fptr;
  756. #endif
  757.  
  758.     symaddr = get_symbol_addr((char *) argv->buffer);
  759.     if (!symaddr)
  760.         printf("Symbol %s not found.\n", argv->buffer);
  761.     else if (symaddr == (uintptr_t) -1) {
  762.         symtab_print_search((char *) argv->buffer);
  763.         printf("Duplicate symbol, be more specific.\n");
  764.     } else {
  765.         symbol = get_symtab_entry(symaddr);
  766.         printf("Calling f(0x%zx,0x%zx, 0x%zx): %.*p: %s\n",
  767.                arg1, arg2, arg3, sizeof(uintptr_t) * 2, symaddr, symbol);
  768. #ifdef ia64
  769.         fptr.f = symaddr;
  770.         fptr.gp = ((unative_t *)cmd_call2)[1];
  771.         f =  (unative_t (*)(unative_t,unative_t,unative_t,...)) &fptr;
  772. #else
  773.         f =  (unative_t (*)(unative_t,unative_t,unative_t,...)) symaddr;
  774. #endif
  775.         printf("Result: %#zx\n", f(arg1, arg2, arg3));
  776.     }
  777.    
  778.     return 1;
  779. }
  780.  
  781.  
  782. /** Print detailed description of 'describe' command. */
  783. void desc_help(void)
  784. {
  785.     printf("Syntax: describe command_name\n");
  786. }
  787.  
  788. /** Halt the kernel.
  789.  *
  790.  * @param argv Argument vector (ignored).
  791.  *
  792.  * @return 0 on failure, 1 on success (never returns).
  793.  */
  794. int cmd_halt(cmd_arg_t *argv)
  795. {
  796.     halt();
  797.     return 1;
  798. }
  799.  
  800. /** Command for printing TLB contents.
  801.  *
  802.  * @param argv Not used.
  803.  *
  804.  * @return Always returns 1.
  805.  */
  806. int cmd_tlb(cmd_arg_t *argv)
  807. {
  808.     tlb_print();
  809.     return 1;
  810. }
  811.  
  812. /** Write 4 byte value to address */
  813. int cmd_set4(cmd_arg_t *argv)
  814. {
  815.     uint32_t *addr;
  816.     uint32_t arg1 = argv[1].intval;
  817.     bool pointer = false;
  818.  
  819.     if (((char *)argv->buffer)[0] == '*') {
  820.         addr = (uint32_t *) get_symbol_addr((char *) argv->buffer + 1);
  821.         pointer = true;
  822.     } else if (((char *) argv->buffer)[0] >= '0' &&
  823.            ((char *)argv->buffer)[0] <= '9')
  824.         addr = (uint32_t *)atoi((char *)argv->buffer);
  825.     else
  826.         addr = (uint32_t *)get_symbol_addr((char *) argv->buffer);
  827.  
  828.     if (!addr)
  829.         printf("Symbol %s not found.\n", argv->buffer);
  830.     else if (addr == (uint32_t *) -1) {
  831.         symtab_print_search((char *) argv->buffer);
  832.         printf("Duplicate symbol, be more specific.\n");
  833.     } else {
  834.         if (pointer)
  835.             addr = (uint32_t *)(*(unative_t *)addr);
  836.         printf("Writing 0x%x -> %.*p\n", arg1, sizeof(uintptr_t) * 2, addr);
  837.         *addr = arg1;
  838.        
  839.     }
  840.    
  841.     return 1;
  842. }
  843.  
  844. /** Command for listings SLAB caches
  845.  *
  846.  * @param argv Ignores
  847.  *
  848.  * @return Always 1
  849.  */
  850. int cmd_slabs(cmd_arg_t * argv) {
  851.     slab_print_list();
  852.     return 1;
  853. }
  854.  
  855.  
  856. /** Command for listings Thread information
  857.  *
  858.  * @param argv Ignores
  859.  *
  860.  * @return Always 1
  861.  */
  862. int cmd_threads(cmd_arg_t * argv) {
  863.     thread_print_list();
  864.     return 1;
  865. }
  866.  
  867. /** Command for listings Task information
  868.  *
  869.  * @param argv Ignores
  870.  *
  871.  * @return Always 1
  872.  */
  873. int cmd_tasks(cmd_arg_t * argv) {
  874.     task_print_list();
  875.     return 1;
  876. }
  877.  
  878. /** Command for listings Thread information
  879.  *
  880.  * @param argv Ignores
  881.  *
  882.  * @return Always 1
  883.  */
  884. int cmd_sched(cmd_arg_t * argv) {
  885.     sched_print_list();
  886.     return 1;
  887. }
  888.  
  889. /** Command for listing memory zones
  890.  *
  891.  * @param argv Ignored
  892.  *
  893.  * return Always 1
  894.  */
  895. int cmd_zones(cmd_arg_t * argv) {
  896.     zone_print_list();
  897.     return 1;
  898. }
  899.  
  900. /** Command for memory zone details
  901.  *
  902.  * @param argv Integer argument from cmdline expected
  903.  *
  904.  * return Always 1
  905.  */
  906. int cmd_zone(cmd_arg_t * argv) {
  907.     zone_print_one(argv[0].intval);
  908.     return 1;
  909. }
  910.  
  911. /** Command for printing task ipc details
  912.  *
  913.  * @param argv Integer argument from cmdline expected
  914.  *
  915.  * return Always 1
  916.  */
  917. int cmd_ipc_task(cmd_arg_t * argv) {
  918.     ipc_print_task(argv[0].intval);
  919.     return 1;
  920. }
  921.  
  922.  
  923. /** Command for listing processors.
  924.  *
  925.  * @param argv Ignored.
  926.  *
  927.  * return Always 1.
  928.  */
  929. int cmd_cpus(cmd_arg_t *argv)
  930. {
  931.     cpu_list();
  932.     return 1;
  933. }
  934.  
  935. /** Command for printing kernel version.
  936.  *
  937.  * @param argv Ignored.
  938.  *
  939.  * return Always 1.
  940.  */
  941. int cmd_version(cmd_arg_t *argv)
  942. {
  943.     version_print();
  944.     return 1;
  945. }
  946.  
  947. /** Command for returning console back to userspace.
  948.  *
  949.  * @param argv Ignored.
  950.  *
  951.  * return Always 1.
  952.  */
  953. int cmd_continue(cmd_arg_t *argv)
  954. {
  955.     printf("The kernel will now relinquish the console.\n");
  956.     printf("Use userspace controls to redraw the screen.\n");
  957.     arch_release_console();
  958.     return 1;
  959. }
  960.  
  961. #ifdef CONFIG_TEST
  962. /** Command for printing kernel tests list.
  963.  *
  964.  * @param argv Ignored.
  965.  *
  966.  * return Always 1.
  967.  */
  968. int cmd_tests(cmd_arg_t *argv)
  969. {
  970.     test_t *test;
  971.    
  972.     for (test = tests; test->name != NULL; test++)
  973.         printf("%s\t\t%s%s\n", test->name, test->desc, (test->safe ? "" : " (unsafe)"));
  974.    
  975.     printf("*\t\tRun all safe tests\n");
  976.     return 1;
  977. }
  978.  
  979. static bool run_test(const test_t *test)
  980. {
  981.     printf("%s\t\t%s\n", test->name, test->desc);
  982.    
  983.     /* Update and read thread accounting
  984.        for benchmarking */
  985.     ipl_t ipl = interrupts_disable();
  986.     spinlock_lock(&TASK->lock);
  987.     uint64_t t0 = task_get_accounting(TASK);
  988.     spinlock_unlock(&TASK->lock);
  989.     interrupts_restore(ipl);
  990.    
  991.     /* Execute the test */
  992.     char * ret = test->entry(false);
  993.    
  994.     /* Update and read thread accounting */
  995.     ipl = interrupts_disable();
  996.     spinlock_lock(&TASK->lock);
  997.     uint64_t dt = task_get_accounting(TASK) - t0;
  998.     spinlock_unlock(&TASK->lock);
  999.     interrupts_restore(ipl);
  1000.    
  1001.     uint64_t cycles;
  1002.     char suffix;
  1003.     order(dt, &cycles, &suffix);
  1004.        
  1005.     printf("Time: %llu%c cycles\n", cycles, suffix);
  1006.    
  1007.     if (ret == NULL) {
  1008.         printf("Test passed\n");
  1009.         return true;
  1010.     }
  1011.  
  1012.     printf("%s\n", ret);
  1013.     return false;
  1014. }
  1015.  
  1016. static bool run_bench(const test_t *test, const uint32_t cnt)
  1017. {
  1018.     uint32_t i;
  1019.     bool ret = true;
  1020.     uint64_t cycles;
  1021.     char suffix;
  1022.    
  1023.     if (cnt < 1)
  1024.         return true;
  1025.    
  1026.     uint64_t *data = (uint64_t *) malloc(sizeof(uint64_t) * cnt, 0);
  1027.     if (data == NULL) {
  1028.         printf("Error allocating memory for statistics\n");
  1029.         return false;
  1030.     }
  1031.    
  1032.     for (i = 0; i < cnt; i++) {
  1033.         printf("%s (%d/%d) ... ", test->name, i + 1, cnt);
  1034.        
  1035.         /* Update and read thread accounting
  1036.            for benchmarking */
  1037.         ipl_t ipl = interrupts_disable();
  1038.         spinlock_lock(&TASK->lock);
  1039.         uint64_t t0 = task_get_accounting(TASK);
  1040.         spinlock_unlock(&TASK->lock);
  1041.         interrupts_restore(ipl);
  1042.        
  1043.         /* Execute the test */
  1044.         char * ret = test->entry(true);
  1045.        
  1046.         /* Update and read thread accounting */
  1047.         ipl = interrupts_disable();
  1048.         spinlock_lock(&TASK->lock);
  1049.         uint64_t dt = task_get_accounting(TASK) - t0;
  1050.         spinlock_unlock(&TASK->lock);
  1051.         interrupts_restore(ipl);
  1052.        
  1053.         if (ret != NULL) {
  1054.             printf("%s\n", ret);
  1055.             ret = false;
  1056.             break;
  1057.         }
  1058.        
  1059.         data[i] = dt;
  1060.         order(dt, &cycles, &suffix);
  1061.         printf("OK (%llu%c cycles)\n", cycles, suffix);
  1062.     }
  1063.    
  1064.     if (ret) {
  1065.         printf("\n");
  1066.        
  1067.         uint64_t sum = 0;
  1068.        
  1069.         for (i = 0; i < cnt; i++) {
  1070.             sum += data[i];
  1071.         }
  1072.        
  1073.         order(sum / (uint64_t) cnt, &cycles, &suffix);
  1074.         printf("Average\t\t%llu%c\n", cycles, suffix);
  1075.     }
  1076.    
  1077.     free(data);
  1078.    
  1079.     return ret;
  1080. }
  1081.  
  1082. /** Command for returning kernel tests
  1083.  *
  1084.  * @param argv Argument vector.
  1085.  *
  1086.  * return Always 1.
  1087.  */
  1088. int cmd_test(cmd_arg_t *argv)
  1089. {
  1090.     test_t *test;
  1091.    
  1092.     if (strcmp((char *) argv->buffer, "*") == 0) {
  1093.         for (test = tests; test->name != NULL; test++) {
  1094.             if (test->safe) {
  1095.                 printf("\n");
  1096.                 if (!run_test(test))
  1097.                     break;
  1098.             }
  1099.         }
  1100.     } else {
  1101.         bool fnd = false;
  1102.        
  1103.         for (test = tests; test->name != NULL; test++) {
  1104.             if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1105.                 fnd = true;
  1106.                 run_test(test);
  1107.                 break;
  1108.             }
  1109.         }
  1110.        
  1111.         if (!fnd)
  1112.             printf("Unknown test\n");
  1113.     }
  1114.    
  1115.     return 1;
  1116. }
  1117.  
  1118. /** Command for returning kernel tests as benchmarks
  1119.  *
  1120.  * @param argv Argument vector.
  1121.  *
  1122.  * return Always 1.
  1123.  */
  1124. int cmd_bench(cmd_arg_t *argv)
  1125. {
  1126.     test_t *test;
  1127.     uint32_t cnt = argv[1].intval;
  1128.    
  1129.     bool fnd = false;
  1130.    
  1131.     for (test = tests; test->name != NULL; test++) {
  1132.         if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1133.             fnd = true;
  1134.            
  1135.             if (test->safe)
  1136.                 run_bench(test, cnt);
  1137.             else
  1138.                 printf("Unsafe test\n");
  1139.            
  1140.             break;
  1141.         }
  1142.     }
  1143.        
  1144.     if (!fnd)
  1145.         printf("Unknown test\n");
  1146.  
  1147.     return 1;
  1148. }
  1149.  
  1150. #endif
  1151.  
  1152. /** @}
  1153.  */
  1154.