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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.         thread_t *t;
  649.         if ((t = thread_create((void (*)(void *)) cmd_call0, (void *) argv, TASK, THREAD_FLAG_WIRED, "call0", false))) {
  650.             spinlock_lock(&t->lock);
  651.             t->cpu = &cpus[i];
  652.             spinlock_unlock(&t->lock);
  653.             printf("cpu%u: ", i);
  654.             thread_ready(t);
  655.             thread_join(t);
  656.             thread_detach(t);
  657.         } else
  658.             printf("Unable to create thread for cpu%u\n", i);
  659.     }
  660.    
  661.     return 1;
  662. }
  663.  
  664. /** Call function with one parameter */
  665. int cmd_call1(cmd_arg_t *argv)
  666. {
  667.     uintptr_t symaddr;
  668.     char *symbol;
  669.     unative_t (*f)(unative_t,...);
  670.     unative_t arg1 = argv[1].intval;
  671. #ifdef ia64
  672.     struct {
  673.         unative_t f;
  674.         unative_t gp;
  675.     }fptr;
  676. #endif
  677.  
  678.     symaddr = get_symbol_addr((char *) argv->buffer);
  679.     if (!symaddr)
  680.         printf("Symbol %s not found.\n", argv->buffer);
  681.     else if (symaddr == (uintptr_t) -1) {
  682.         symtab_print_search((char *) argv->buffer);
  683.         printf("Duplicate symbol, be more specific.\n");
  684.     } else {
  685.         symbol = get_symtab_entry(symaddr);
  686.  
  687.         printf("Calling f(%#zx): %.*p: %s\n", arg1, sizeof(uintptr_t) * 2, symaddr, symbol);
  688. #ifdef ia64
  689.         fptr.f = symaddr;
  690.         fptr.gp = ((unative_t *)cmd_call2)[1];
  691.         f =  (unative_t (*)(unative_t,...)) &fptr;
  692. #else
  693.         f =  (unative_t (*)(unative_t,...)) symaddr;
  694. #endif
  695.         printf("Result: %#zx\n", f(arg1));
  696.     }
  697.    
  698.     return 1;
  699. }
  700.  
  701. /** Call function with two parameters */
  702. int cmd_call2(cmd_arg_t *argv)
  703. {
  704.     uintptr_t symaddr;
  705.     char *symbol;
  706.     unative_t (*f)(unative_t,unative_t,...);
  707.     unative_t arg1 = argv[1].intval;
  708.     unative_t arg2 = argv[2].intval;
  709. #ifdef ia64
  710.     struct {
  711.         unative_t f;
  712.         unative_t gp;
  713.     }fptr;
  714. #endif
  715.  
  716.     symaddr = get_symbol_addr((char *) argv->buffer);
  717.     if (!symaddr)
  718.         printf("Symbol %s not found.\n", argv->buffer);
  719.     else if (symaddr == (uintptr_t) -1) {
  720.         symtab_print_search((char *) argv->buffer);
  721.         printf("Duplicate symbol, be more specific.\n");
  722.     } else {
  723.         symbol = get_symtab_entry(symaddr);
  724.         printf("Calling f(0x%zx,0x%zx): %.*p: %s\n",
  725.                arg1, arg2, sizeof(uintptr_t) * 2, symaddr, symbol);
  726. #ifdef ia64
  727.         fptr.f = symaddr;
  728.         fptr.gp = ((unative_t *)cmd_call2)[1];
  729.         f =  (unative_t (*)(unative_t,unative_t,...)) &fptr;
  730. #else
  731.         f =  (unative_t (*)(unative_t,unative_t,...)) symaddr;
  732. #endif
  733.         printf("Result: %#zx\n", f(arg1, arg2));
  734.     }
  735.    
  736.     return 1;
  737. }
  738.  
  739. /** Call function with three parameters */
  740. int cmd_call3(cmd_arg_t *argv)
  741. {
  742.     uintptr_t symaddr;
  743.     char *symbol;
  744.     unative_t (*f)(unative_t,unative_t,unative_t,...);
  745.     unative_t arg1 = argv[1].intval;
  746.     unative_t arg2 = argv[2].intval;
  747.     unative_t arg3 = argv[3].intval;
  748. #ifdef ia64
  749.     struct {
  750.         unative_t f;
  751.         unative_t gp;
  752.     }fptr;
  753. #endif
  754.  
  755.     symaddr = get_symbol_addr((char *) argv->buffer);
  756.     if (!symaddr)
  757.         printf("Symbol %s not found.\n", argv->buffer);
  758.     else if (symaddr == (uintptr_t) -1) {
  759.         symtab_print_search((char *) argv->buffer);
  760.         printf("Duplicate symbol, be more specific.\n");
  761.     } else {
  762.         symbol = get_symtab_entry(symaddr);
  763.         printf("Calling f(0x%zx,0x%zx, 0x%zx): %.*p: %s\n",
  764.                arg1, arg2, arg3, sizeof(uintptr_t) * 2, symaddr, symbol);
  765. #ifdef ia64
  766.         fptr.f = symaddr;
  767.         fptr.gp = ((unative_t *)cmd_call2)[1];
  768.         f =  (unative_t (*)(unative_t,unative_t,unative_t,...)) &fptr;
  769. #else
  770.         f =  (unative_t (*)(unative_t,unative_t,unative_t,...)) symaddr;
  771. #endif
  772.         printf("Result: %#zx\n", f(arg1, arg2, arg3));
  773.     }
  774.    
  775.     return 1;
  776. }
  777.  
  778.  
  779. /** Print detailed description of 'describe' command. */
  780. void desc_help(void)
  781. {
  782.     printf("Syntax: describe command_name\n");
  783. }
  784.  
  785. /** Halt the kernel.
  786.  *
  787.  * @param argv Argument vector (ignored).
  788.  *
  789.  * @return 0 on failure, 1 on success (never returns).
  790.  */
  791. int cmd_halt(cmd_arg_t *argv)
  792. {
  793.     halt();
  794.     return 1;
  795. }
  796.  
  797. /** Command for printing TLB contents.
  798.  *
  799.  * @param argv Not used.
  800.  *
  801.  * @return Always returns 1.
  802.  */
  803. int cmd_tlb(cmd_arg_t *argv)
  804. {
  805.     tlb_print();
  806.     return 1;
  807. }
  808.  
  809. /** Write 4 byte value to address */
  810. int cmd_set4(cmd_arg_t *argv)
  811. {
  812.     uint32_t *addr;
  813.     uint32_t arg1 = argv[1].intval;
  814.     bool pointer = false;
  815.  
  816.     if (((char *)argv->buffer)[0] == '*') {
  817.         addr = (uint32_t *) get_symbol_addr((char *) argv->buffer + 1);
  818.         pointer = true;
  819.     } else if (((char *) argv->buffer)[0] >= '0' &&
  820.            ((char *)argv->buffer)[0] <= '9')
  821.         addr = (uint32_t *)atoi((char *)argv->buffer);
  822.     else
  823.         addr = (uint32_t *)get_symbol_addr((char *) argv->buffer);
  824.  
  825.     if (!addr)
  826.         printf("Symbol %s not found.\n", argv->buffer);
  827.     else if (addr == (uint32_t *) -1) {
  828.         symtab_print_search((char *) argv->buffer);
  829.         printf("Duplicate symbol, be more specific.\n");
  830.     } else {
  831.         if (pointer)
  832.             addr = (uint32_t *)(*(unative_t *)addr);
  833.         printf("Writing 0x%x -> %.*p\n", arg1, sizeof(uintptr_t) * 2, addr);
  834.         *addr = arg1;
  835.        
  836.     }
  837.    
  838.     return 1;
  839. }
  840.  
  841. /** Command for listings SLAB caches
  842.  *
  843.  * @param argv Ignores
  844.  *
  845.  * @return Always 1
  846.  */
  847. int cmd_slabs(cmd_arg_t * argv) {
  848.     slab_print_list();
  849.     return 1;
  850. }
  851.  
  852.  
  853. /** Command for listings Thread information
  854.  *
  855.  * @param argv Ignores
  856.  *
  857.  * @return Always 1
  858.  */
  859. int cmd_threads(cmd_arg_t * argv) {
  860.     thread_print_list();
  861.     return 1;
  862. }
  863.  
  864. /** Command for listings Task information
  865.  *
  866.  * @param argv Ignores
  867.  *
  868.  * @return Always 1
  869.  */
  870. int cmd_tasks(cmd_arg_t * argv) {
  871.     task_print_list();
  872.     return 1;
  873. }
  874.  
  875. /** Command for listings Thread information
  876.  *
  877.  * @param argv Ignores
  878.  *
  879.  * @return Always 1
  880.  */
  881. int cmd_sched(cmd_arg_t * argv) {
  882.     sched_print_list();
  883.     return 1;
  884. }
  885.  
  886. /** Command for listing memory zones
  887.  *
  888.  * @param argv Ignored
  889.  *
  890.  * return Always 1
  891.  */
  892. int cmd_zones(cmd_arg_t * argv) {
  893.     zone_print_list();
  894.     return 1;
  895. }
  896.  
  897. /** Command for memory zone details
  898.  *
  899.  * @param argv Integer argument from cmdline expected
  900.  *
  901.  * return Always 1
  902.  */
  903. int cmd_zone(cmd_arg_t * argv) {
  904.     zone_print_one(argv[0].intval);
  905.     return 1;
  906. }
  907.  
  908. /** Command for printing task ipc details
  909.  *
  910.  * @param argv Integer argument from cmdline expected
  911.  *
  912.  * return Always 1
  913.  */
  914. int cmd_ipc_task(cmd_arg_t * argv) {
  915.     ipc_print_task(argv[0].intval);
  916.     return 1;
  917. }
  918.  
  919.  
  920. /** Command for listing processors.
  921.  *
  922.  * @param argv Ignored.
  923.  *
  924.  * return Always 1.
  925.  */
  926. int cmd_cpus(cmd_arg_t *argv)
  927. {
  928.     cpu_list();
  929.     return 1;
  930. }
  931.  
  932. /** Command for printing kernel version.
  933.  *
  934.  * @param argv Ignored.
  935.  *
  936.  * return Always 1.
  937.  */
  938. int cmd_version(cmd_arg_t *argv)
  939. {
  940.     version_print();
  941.     return 1;
  942. }
  943.  
  944. /** Command for returning console back to userspace.
  945.  *
  946.  * @param argv Ignored.
  947.  *
  948.  * return Always 1.
  949.  */
  950. int cmd_continue(cmd_arg_t *argv)
  951. {
  952.     printf("The kernel will now relinquish the console.\n");
  953.     printf("Use userspace controls to redraw the screen.\n");
  954.     arch_release_console();
  955.     return 1;
  956. }
  957.  
  958. #ifdef CONFIG_TEST
  959. /** Command for printing kernel tests list.
  960.  *
  961.  * @param argv Ignored.
  962.  *
  963.  * return Always 1.
  964.  */
  965. int cmd_tests(cmd_arg_t *argv)
  966. {
  967.     test_t *test;
  968.    
  969.     for (test = tests; test->name != NULL; test++)
  970.         printf("%s\t\t%s%s\n", test->name, test->desc, (test->safe ? "" : " (unsafe)"));
  971.    
  972.     printf("*\t\tRun all safe tests\n");
  973.     return 1;
  974. }
  975.  
  976. static bool run_test(const test_t *test)
  977. {
  978.     printf("%s\t\t%s\n", test->name, test->desc);
  979.    
  980.     /* Update and read thread accounting
  981.        for benchmarking */
  982.     ipl_t ipl = interrupts_disable();
  983.     spinlock_lock(&TASK->lock);
  984.     uint64_t t0 = task_get_accounting(TASK);
  985.     spinlock_unlock(&TASK->lock);
  986.     interrupts_restore(ipl);
  987.    
  988.     /* Execute the test */
  989.     char * ret = test->entry(false);
  990.    
  991.     /* Update and read thread accounting */
  992.     ipl = interrupts_disable();
  993.     spinlock_lock(&TASK->lock);
  994.     uint64_t dt = task_get_accounting(TASK) - t0;
  995.     spinlock_unlock(&TASK->lock);
  996.     interrupts_restore(ipl);
  997.    
  998.     uint64_t cycles;
  999.     char suffix;
  1000.     order(dt, &cycles, &suffix);
  1001.        
  1002.     printf("Time: %llu%c cycles\n", cycles, suffix);
  1003.    
  1004.     if (ret == NULL) {
  1005.         printf("Test passed\n");
  1006.         return true;
  1007.     }
  1008.  
  1009.     printf("%s\n", ret);
  1010.     return false;
  1011. }
  1012.  
  1013. static bool run_bench(const test_t *test, const uint32_t cnt)
  1014. {
  1015.     uint32_t i;
  1016.     bool ret = true;
  1017.     uint64_t cycles;
  1018.     char suffix;
  1019.    
  1020.     if (cnt < 1)
  1021.         return true;
  1022.    
  1023.     uint64_t *data = (uint64_t *) malloc(sizeof(uint64_t) * cnt, 0);
  1024.     if (data == NULL) {
  1025.         printf("Error allocating memory for statistics\n");
  1026.         return false;
  1027.     }
  1028.    
  1029.     for (i = 0; i < cnt; i++) {
  1030.         printf("%s (%d/%d) ... ", test->name, i + 1, cnt);
  1031.        
  1032.         /* Update and read thread accounting
  1033.            for benchmarking */
  1034.         ipl_t ipl = interrupts_disable();
  1035.         spinlock_lock(&TASK->lock);
  1036.         uint64_t t0 = task_get_accounting(TASK);
  1037.         spinlock_unlock(&TASK->lock);
  1038.         interrupts_restore(ipl);
  1039.        
  1040.         /* Execute the test */
  1041.         char * ret = test->entry(true);
  1042.        
  1043.         /* Update and read thread accounting */
  1044.         ipl = interrupts_disable();
  1045.         spinlock_lock(&TASK->lock);
  1046.         uint64_t dt = task_get_accounting(TASK) - t0;
  1047.         spinlock_unlock(&TASK->lock);
  1048.         interrupts_restore(ipl);
  1049.        
  1050.         if (ret != NULL) {
  1051.             printf("%s\n", ret);
  1052.             ret = false;
  1053.             break;
  1054.         }
  1055.        
  1056.         data[i] = dt;
  1057.         order(dt, &cycles, &suffix);
  1058.         printf("OK (%llu%c cycles)\n", cycles, suffix);
  1059.     }
  1060.    
  1061.     if (ret) {
  1062.         printf("\n");
  1063.        
  1064.         uint64_t sum = 0;
  1065.        
  1066.         for (i = 0; i < cnt; i++) {
  1067.             sum += data[i];
  1068.         }
  1069.        
  1070.         order(sum / (uint64_t) cnt, &cycles, &suffix);
  1071.         printf("Average\t\t%llu%c\n", cycles, suffix);
  1072.     }
  1073.    
  1074.     free(data);
  1075.    
  1076.     return ret;
  1077. }
  1078.  
  1079. /** Command for returning kernel tests
  1080.  *
  1081.  * @param argv Argument vector.
  1082.  *
  1083.  * return Always 1.
  1084.  */
  1085. int cmd_test(cmd_arg_t *argv)
  1086. {
  1087.     test_t *test;
  1088.    
  1089.     if (strcmp((char *) argv->buffer, "*") == 0) {
  1090.         for (test = tests; test->name != NULL; test++) {
  1091.             if (test->safe) {
  1092.                 printf("\n");
  1093.                 if (!run_test(test))
  1094.                     break;
  1095.             }
  1096.         }
  1097.     } else {
  1098.         bool fnd = false;
  1099.        
  1100.         for (test = tests; test->name != NULL; test++) {
  1101.             if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1102.                 fnd = true;
  1103.                 run_test(test);
  1104.                 break;
  1105.             }
  1106.         }
  1107.        
  1108.         if (!fnd)
  1109.             printf("Unknown test\n");
  1110.     }
  1111.    
  1112.     return 1;
  1113. }
  1114.  
  1115. /** Command for returning kernel tests as benchmarks
  1116.  *
  1117.  * @param argv Argument vector.
  1118.  *
  1119.  * return Always 1.
  1120.  */
  1121. int cmd_bench(cmd_arg_t *argv)
  1122. {
  1123.     test_t *test;
  1124.     uint32_t cnt = argv[1].intval;
  1125.    
  1126.     bool fnd = false;
  1127.    
  1128.     for (test = tests; test->name != NULL; test++) {
  1129.         if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1130.             fnd = true;
  1131.            
  1132.             if (test->safe)
  1133.                 run_bench(test, cnt);
  1134.             else
  1135.                 printf("Unsafe test\n");
  1136.            
  1137.             break;
  1138.         }
  1139.     }
  1140.        
  1141.     if (!fnd)
  1142.         printf("Unknown test\n");
  1143.  
  1144.     return 1;
  1145. }
  1146.  
  1147. #endif
  1148.  
  1149. /** @}
  1150.  */
  1151.