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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 <func.h>
  52. #include <macros.h>
  53. #include <debug.h>
  54. #include <symtab.h>
  55. #include <cpu.h>
  56. #include <mm/tlb.h>
  57. #include <arch/mm/tlb.h>
  58. #include <mm/frame.h>
  59. #include <main/version.h>
  60. #include <mm/slab.h>
  61. #include <proc/scheduler.h>
  62. #include <proc/thread.h>
  63. #include <proc/task.h>
  64. #include <ipc/ipc.h>
  65. #include <ipc/irq.h>
  66.  
  67. #ifdef CONFIG_TEST
  68. #include <test.h>
  69. #endif
  70.  
  71. /* Data and methods for 'help' command. */
  72. static int cmd_help(cmd_arg_t *argv);
  73. static cmd_info_t help_info = {
  74.     .name = "help",
  75.     .description = "List of supported commands.",
  76.     .func = cmd_help,
  77.     .argc = 0
  78. };
  79.  
  80. static cmd_info_t exit_info = {
  81.     .name = "exit",
  82.     .description = "Exit kconsole",
  83.     .argc = 0
  84. };
  85.  
  86. static int cmd_continue(cmd_arg_t *argv);
  87. static cmd_info_t continue_info = {
  88.     .name = "continue",
  89.     .description = "Return console back to userspace.",
  90.     .func = cmd_continue,
  91.     .argc = 0
  92. };
  93.  
  94. #ifdef CONFIG_TEST
  95. static int cmd_tests(cmd_arg_t *argv);
  96. static cmd_info_t tests_info = {
  97.     .name = "tests",
  98.     .description = "Print available kernel tests.",
  99.     .func = cmd_tests,
  100.     .argc = 0
  101. };
  102.  
  103. static char test_buf[MAX_CMDLINE + 1];
  104. static int cmd_test(cmd_arg_t *argv);
  105. static cmd_arg_t test_argv[] = {
  106.     {
  107.         .type = ARG_TYPE_STRING,
  108.         .buffer = test_buf,
  109.         .len = sizeof(test_buf)
  110.     }
  111. };
  112. static cmd_info_t test_info = {
  113.     .name = "test",
  114.     .description = "Run kernel test.",
  115.     .func = cmd_test,
  116.     .argc = 1,
  117.     .argv = test_argv
  118. };
  119.  
  120. static int cmd_bench(cmd_arg_t *argv);
  121. static cmd_arg_t bench_argv[] = {
  122.     {
  123.         .type = ARG_TYPE_STRING,
  124.         .buffer = test_buf,
  125.         .len = sizeof(test_buf)
  126.     },
  127.     {
  128.         .type = ARG_TYPE_INT,
  129.     }
  130. };
  131. static cmd_info_t bench_info = {
  132.     .name = "bench",
  133.     .description = "Run kernel test as benchmark.",
  134.     .func = cmd_bench,
  135.     .argc = 2,
  136.     .argv = bench_argv
  137. };
  138. #endif
  139.  
  140. /* Data and methods for 'description' command. */
  141. static int cmd_desc(cmd_arg_t *argv);
  142. static void desc_help(void);
  143. static char desc_buf[MAX_CMDLINE+1];
  144. static cmd_arg_t desc_argv = {
  145.     .type = ARG_TYPE_STRING,
  146.     .buffer = desc_buf,
  147.     .len = sizeof(desc_buf)
  148. };
  149. static cmd_info_t desc_info = {
  150.     .name = "describe",
  151.     .description = "Describe specified command.",
  152.     .help = desc_help,
  153.     .func = cmd_desc,
  154.     .argc = 1,
  155.     .argv = &desc_argv
  156. };
  157.  
  158. /* Data and methods for 'symaddr' command. */
  159. static int cmd_symaddr(cmd_arg_t *argv);
  160. static char symaddr_buf[MAX_CMDLINE+1];
  161. static cmd_arg_t symaddr_argv = {
  162.     .type = ARG_TYPE_STRING,
  163.     .buffer = symaddr_buf,
  164.     .len = sizeof(symaddr_buf)
  165. };
  166. static cmd_info_t symaddr_info = {
  167.     .name = "symaddr",
  168.     .description = "Return symbol address.",
  169.     .func = cmd_symaddr,
  170.     .argc = 1,
  171.     .argv = &symaddr_argv
  172. };
  173.  
  174. static char set_buf[MAX_CMDLINE+1];
  175. static int cmd_set4(cmd_arg_t *argv);
  176. static cmd_arg_t set4_argv[] = {
  177.     {
  178.         .type = ARG_TYPE_STRING,
  179.         .buffer = set_buf,
  180.         .len = sizeof(set_buf)
  181.     },
  182.     {
  183.         .type = ARG_TYPE_INT
  184.     }
  185. };
  186. static cmd_info_t set4_info = {
  187.     .name = "set4",
  188.     .description = "set <dest_addr> <value> - 4byte version",
  189.     .func = cmd_set4,
  190.     .argc = 2,
  191.     .argv = set4_argv
  192. };
  193.  
  194. /* Data and methods for 'call0' command. */
  195. static char call0_buf[MAX_CMDLINE+1];
  196. static char carg1_buf[MAX_CMDLINE+1];
  197. static char carg2_buf[MAX_CMDLINE+1];
  198. static char carg3_buf[MAX_CMDLINE+1];
  199.  
  200. static int cmd_call0(cmd_arg_t *argv);
  201. static cmd_arg_t call0_argv = {
  202.     .type = ARG_TYPE_STRING,
  203.     .buffer = call0_buf,
  204.     .len = sizeof(call0_buf)
  205. };
  206. static cmd_info_t call0_info = {
  207.     .name = "call0",
  208.     .description = "call0 <function> -> call function().",
  209.     .func = cmd_call0,
  210.     .argc = 1,
  211.     .argv = &call0_argv
  212. };
  213.  
  214. /* Data and methods for 'call1' command. */
  215. static int cmd_call1(cmd_arg_t *argv);
  216. static cmd_arg_t call1_argv[] = {
  217.     {
  218.         .type = ARG_TYPE_STRING,
  219.         .buffer = call0_buf,
  220.         .len = sizeof(call0_buf)
  221.     },
  222.     {
  223.         .type = ARG_TYPE_VAR,
  224.         .buffer = carg1_buf,
  225.         .len = sizeof(carg1_buf)
  226.     }
  227. };
  228. static cmd_info_t call1_info = {
  229.     .name = "call1",
  230.     .description = "call1 <function> <arg1> -> call function(arg1).",
  231.     .func = cmd_call1,
  232.     .argc = 2,
  233.     .argv = call1_argv
  234. };
  235.  
  236. /* Data and methods for 'call2' command. */
  237. static int cmd_call2(cmd_arg_t *argv);
  238. static cmd_arg_t call2_argv[] = {
  239.     {
  240.         .type = ARG_TYPE_STRING,
  241.         .buffer = call0_buf,
  242.         .len = sizeof(call0_buf)
  243.     },
  244.     {
  245.         .type = ARG_TYPE_VAR,
  246.         .buffer = carg1_buf,
  247.         .len = sizeof(carg1_buf)
  248.     },
  249.     {
  250.         .type = ARG_TYPE_VAR,
  251.         .buffer = carg2_buf,
  252.         .len = sizeof(carg2_buf)
  253.     }
  254. };
  255. static cmd_info_t call2_info = {
  256.     .name = "call2",
  257.     .description = "call2 <function> <arg1> <arg2> -> call function(arg1,arg2).",
  258.     .func = cmd_call2,
  259.     .argc = 3,
  260.     .argv = call2_argv
  261. };
  262.  
  263. /* Data and methods for 'call3' command. */
  264. static int cmd_call3(cmd_arg_t *argv);
  265. static cmd_arg_t call3_argv[] = {
  266.     {
  267.         .type = ARG_TYPE_STRING,
  268.         .buffer = call0_buf,
  269.         .len = sizeof(call0_buf)
  270.     },
  271.     {
  272.         .type = ARG_TYPE_VAR,
  273.         .buffer = carg1_buf,
  274.         .len = sizeof(carg1_buf)
  275.     },
  276.     {
  277.         .type = ARG_TYPE_VAR,
  278.         .buffer = carg2_buf,
  279.         .len = sizeof(carg2_buf)
  280.     },
  281.     {
  282.         .type = ARG_TYPE_VAR,
  283.         .buffer = carg3_buf,
  284.         .len = sizeof(carg3_buf)
  285.     }
  286.  
  287. };
  288. static cmd_info_t call3_info = {
  289.     .name = "call3",
  290.     .description = "call3 <function> <arg1> <arg2> <arg3> -> call function(arg1,arg2,arg3).",
  291.     .func = cmd_call3,
  292.     .argc = 4,
  293.     .argv = call3_argv
  294. };
  295.  
  296. /* Data and methods for 'halt' command. */
  297. static int cmd_halt(cmd_arg_t *argv);
  298. static cmd_info_t halt_info = {
  299.     .name = "halt",
  300.     .description = "Halt the kernel.",
  301.     .func = cmd_halt,
  302.     .argc = 0
  303. };
  304.  
  305. /* Data and methods for 'tlb' command. */
  306. static int cmd_tlb(cmd_arg_t *argv);
  307. cmd_info_t tlb_info = {
  308.     .name = "tlb",
  309.     .description = "Print TLB of current processor.",
  310.     .help = NULL,
  311.     .func = cmd_tlb,
  312.     .argc = 0,
  313.     .argv = NULL
  314. };
  315.  
  316. static int cmd_threads(cmd_arg_t *argv);
  317. static cmd_info_t threads_info = {
  318.     .name = "threads",
  319.     .description = "List all threads.",
  320.     .func = cmd_threads,
  321.     .argc = 0
  322. };
  323.  
  324. static int cmd_tasks(cmd_arg_t *argv);
  325. static cmd_info_t tasks_info = {
  326.     .name = "tasks",
  327.     .description = "List all tasks.",
  328.     .func = cmd_tasks,
  329.     .argc = 0
  330. };
  331.  
  332.  
  333. static int cmd_sched(cmd_arg_t *argv);
  334. static cmd_info_t sched_info = {
  335.     .name = "scheduler",
  336.     .description = "List all scheduler information.",
  337.     .func = cmd_sched,
  338.     .argc = 0
  339. };
  340.  
  341. static int cmd_slabs(cmd_arg_t *argv);
  342. static cmd_info_t slabs_info = {
  343.     .name = "slabs",
  344.     .description = "List slab caches.",
  345.     .func = cmd_slabs,
  346.     .argc = 0
  347. };
  348.  
  349. /* Data and methods for 'zones' command */
  350. static int cmd_zones(cmd_arg_t *argv);
  351. static cmd_info_t zones_info = {
  352.     .name = "zones",
  353.     .description = "List of memory zones.",
  354.     .func = cmd_zones,
  355.     .argc = 0
  356. };
  357.  
  358. /* Data and methods for 'ipc_task' command */
  359. static int cmd_ipc_task(cmd_arg_t *argv);
  360. static cmd_arg_t ipc_task_argv = {
  361.     .type = ARG_TYPE_INT,
  362. };
  363. static cmd_info_t ipc_task_info = {
  364.     .name = "ipc_task",
  365.     .description = "ipc_task <taskid> Show IPC information of given task.",
  366.     .func = cmd_ipc_task,
  367.     .argc = 1,
  368.     .argv = &ipc_task_argv
  369. };
  370.  
  371. /* Data and methods for 'zone' command */
  372. static int cmd_zone(cmd_arg_t *argv);
  373. static cmd_arg_t zone_argv = {
  374.     .type = ARG_TYPE_INT,
  375. };
  376.  
  377. static cmd_info_t zone_info = {
  378.     .name = "zone",
  379.     .description = "Show memory zone structure.",
  380.     .func = cmd_zone,
  381.     .argc = 1,
  382.     .argv = &zone_argv
  383. };
  384.  
  385. /* Data and methods for 'cpus' command. */
  386. static int cmd_cpus(cmd_arg_t *argv);
  387. cmd_info_t cpus_info = {
  388.     .name = "cpus",
  389.     .description = "List all processors.",
  390.     .help = NULL,
  391.     .func = cmd_cpus,
  392.     .argc = 0,
  393.     .argv = NULL
  394. };
  395.  
  396. /* Data and methods for 'version' command. */
  397. static int cmd_version(cmd_arg_t *argv);
  398. cmd_info_t version_info = {
  399.     .name = "version",
  400.     .description = "Print version information.",
  401.     .help = NULL,
  402.     .func = cmd_version,
  403.     .argc = 0,
  404.     .argv = NULL
  405. };
  406.  
  407. static cmd_info_t *basic_commands[] = {
  408.     &call0_info,
  409.     &call1_info,
  410.     &call2_info,
  411.     &call3_info,
  412.     &continue_info,
  413.     &cpus_info,
  414.     &desc_info,
  415.     &exit_info,
  416.     &halt_info,
  417.     &help_info,
  418.     &ipc_task_info,
  419.     &set4_info,
  420.     &slabs_info,
  421.     &symaddr_info,
  422.     &sched_info,
  423.     &threads_info,
  424.     &tasks_info,
  425.     &tlb_info,
  426.     &version_info,
  427.     &zones_info,
  428.     &zone_info,
  429. #ifdef CONFIG_TEST
  430.     &tests_info,
  431.     &test_info,
  432.     &bench_info,
  433. #endif
  434.     NULL
  435. };
  436.  
  437.  
  438. /** Initialize command info structure.
  439.  *
  440.  * @param cmd Command info structure.
  441.  *
  442.  */
  443. void cmd_initialize(cmd_info_t *cmd)
  444. {
  445.     spinlock_initialize(&cmd->lock, "cmd");
  446.     link_initialize(&cmd->link);
  447. }
  448.  
  449. /** Initialize and register commands. */
  450. void cmd_init(void)
  451. {
  452.     int i;
  453.  
  454.     for (i=0;basic_commands[i]; i++) {
  455.         cmd_initialize(basic_commands[i]);
  456.         if (!cmd_register(basic_commands[i]))
  457.             panic("could not register command %s\n",
  458.                   basic_commands[i]->name);
  459.     }
  460. }
  461.  
  462.  
  463. /** List supported commands.
  464.  *
  465.  * @param argv Argument vector.
  466.  *
  467.  * @return 0 on failure, 1 on success.
  468.  */
  469. int cmd_help(cmd_arg_t *argv)
  470. {
  471.     link_t *cur;
  472.  
  473.     spinlock_lock(&cmd_lock);
  474.    
  475.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  476.         cmd_info_t *hlp;
  477.        
  478.         hlp = list_get_instance(cur, cmd_info_t, link);
  479.         spinlock_lock(&hlp->lock);
  480.        
  481.         printf("%s - %s\n", hlp->name, hlp->description);
  482.  
  483.         spinlock_unlock(&hlp->lock);
  484.     }
  485.    
  486.     spinlock_unlock(&cmd_lock);
  487.  
  488.     return 1;
  489. }
  490.  
  491. /** Describe specified command.
  492.  *
  493.  * @param argv Argument vector.
  494.  *
  495.  * @return 0 on failure, 1 on success.
  496.  */
  497. int cmd_desc(cmd_arg_t *argv)
  498. {
  499.     link_t *cur;
  500.  
  501.     spinlock_lock(&cmd_lock);
  502.    
  503.     for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {
  504.         cmd_info_t *hlp;
  505.        
  506.         hlp = list_get_instance(cur, cmd_info_t, link);
  507.         spinlock_lock(&hlp->lock);
  508.  
  509.         if (strncmp(hlp->name, (const char *) argv->buffer, strlen(hlp->name)) == 0) {
  510.             printf("%s - %s\n", hlp->name, hlp->description);
  511.             if (hlp->help)
  512.                 hlp->help();
  513.             spinlock_unlock(&hlp->lock);
  514.             break;
  515.         }
  516.  
  517.         spinlock_unlock(&hlp->lock);
  518.     }
  519.    
  520.     spinlock_unlock(&cmd_lock);
  521.  
  522.     return 1;
  523. }
  524.  
  525. /** Search symbol table */
  526. int cmd_symaddr(cmd_arg_t *argv)
  527. {
  528.     symtab_print_search((char *) argv->buffer);
  529.    
  530.     return 1;
  531. }
  532.  
  533. /** Call function with zero parameters */
  534. int cmd_call0(cmd_arg_t *argv)
  535. {
  536.     uintptr_t symaddr;
  537.     char *symbol;
  538.     unative_t (*f)(void);
  539. #ifdef ia64
  540.     struct {
  541.         unative_t f;
  542.         unative_t gp;
  543.     }fptr;
  544. #endif
  545.  
  546.     symaddr = get_symbol_addr((char *) argv->buffer);
  547.     if (!symaddr)
  548.         printf("Symbol %s not found.\n", argv->buffer);
  549.     else if (symaddr == (uintptr_t) -1) {
  550.         symtab_print_search((char *) argv->buffer);
  551.         printf("Duplicate symbol, be more specific.\n");
  552.     } else {
  553.         symbol = get_symtab_entry(symaddr);
  554.         printf("Calling f(): %.*p: %s\n", sizeof(uintptr_t) * 2, symaddr, symbol);
  555. #ifdef ia64
  556.         fptr.f = symaddr;
  557.         fptr.gp = ((unative_t *)cmd_call2)[1];
  558.         f =  (unative_t (*)(void)) &fptr;
  559. #else
  560.         f =  (unative_t (*)(void)) symaddr;
  561. #endif
  562.         printf("Result: %#zx\n", f());
  563.     }
  564.    
  565.     return 1;
  566. }
  567.  
  568. /** Call function with one parameter */
  569. int cmd_call1(cmd_arg_t *argv)
  570. {
  571.     uintptr_t symaddr;
  572.     char *symbol;
  573.     unative_t (*f)(unative_t,...);
  574.     unative_t arg1 = argv[1].intval;
  575. #ifdef ia64
  576.     struct {
  577.         unative_t f;
  578.         unative_t gp;
  579.     }fptr;
  580. #endif
  581.  
  582.     symaddr = get_symbol_addr((char *) argv->buffer);
  583.     if (!symaddr)
  584.         printf("Symbol %s not found.\n", argv->buffer);
  585.     else if (symaddr == (uintptr_t) -1) {
  586.         symtab_print_search((char *) argv->buffer);
  587.         printf("Duplicate symbol, be more specific.\n");
  588.     } else {
  589.         symbol = get_symtab_entry(symaddr);
  590.  
  591.         printf("Calling f(%#zx): %.*p: %s\n", arg1, sizeof(uintptr_t) * 2, symaddr, symbol);
  592. #ifdef ia64
  593.         fptr.f = symaddr;
  594.         fptr.gp = ((unative_t *)cmd_call2)[1];
  595.         f =  (unative_t (*)(unative_t,...)) &fptr;
  596. #else
  597.         f =  (unative_t (*)(unative_t,...)) symaddr;
  598. #endif
  599.         printf("Result: %#zx\n", f(arg1));
  600.     }
  601.    
  602.     return 1;
  603. }
  604.  
  605. /** Call function with two parameters */
  606. int cmd_call2(cmd_arg_t *argv)
  607. {
  608.     uintptr_t symaddr;
  609.     char *symbol;
  610.     unative_t (*f)(unative_t,unative_t,...);
  611.     unative_t arg1 = argv[1].intval;
  612.     unative_t arg2 = argv[2].intval;
  613. #ifdef ia64
  614.     struct {
  615.         unative_t f;
  616.         unative_t gp;
  617.     }fptr;
  618. #endif
  619.  
  620.     symaddr = get_symbol_addr((char *) argv->buffer);
  621.     if (!symaddr)
  622.         printf("Symbol %s not found.\n", argv->buffer);
  623.     else if (symaddr == (uintptr_t) -1) {
  624.         symtab_print_search((char *) argv->buffer);
  625.         printf("Duplicate symbol, be more specific.\n");
  626.     } else {
  627.         symbol = get_symtab_entry(symaddr);
  628.         printf("Calling f(0x%zx,0x%zx): %.*p: %s\n",
  629.                arg1, arg2, sizeof(uintptr_t) * 2, symaddr, symbol);
  630. #ifdef ia64
  631.         fptr.f = symaddr;
  632.         fptr.gp = ((unative_t *)cmd_call2)[1];
  633.         f =  (unative_t (*)(unative_t,unative_t,...)) &fptr;
  634. #else
  635.         f =  (unative_t (*)(unative_t,unative_t,...)) symaddr;
  636. #endif
  637.         printf("Result: %#zx\n", f(arg1, arg2));
  638.     }
  639.    
  640.     return 1;
  641. }
  642.  
  643. /** Call function with three parameters */
  644. int cmd_call3(cmd_arg_t *argv)
  645. {
  646.     uintptr_t symaddr;
  647.     char *symbol;
  648.     unative_t (*f)(unative_t,unative_t,unative_t,...);
  649.     unative_t arg1 = argv[1].intval;
  650.     unative_t arg2 = argv[2].intval;
  651.     unative_t arg3 = argv[3].intval;
  652. #ifdef ia64
  653.     struct {
  654.         unative_t f;
  655.         unative_t gp;
  656.     }fptr;
  657. #endif
  658.  
  659.     symaddr = get_symbol_addr((char *) argv->buffer);
  660.     if (!symaddr)
  661.         printf("Symbol %s not found.\n", argv->buffer);
  662.     else if (symaddr == (uintptr_t) -1) {
  663.         symtab_print_search((char *) argv->buffer);
  664.         printf("Duplicate symbol, be more specific.\n");
  665.     } else {
  666.         symbol = get_symtab_entry(symaddr);
  667.         printf("Calling f(0x%zx,0x%zx, 0x%zx): %.*p: %s\n",
  668.                arg1, arg2, arg3, sizeof(uintptr_t) * 2, symaddr, symbol);
  669. #ifdef ia64
  670.         fptr.f = symaddr;
  671.         fptr.gp = ((unative_t *)cmd_call2)[1];
  672.         f =  (unative_t (*)(unative_t,unative_t,unative_t,...)) &fptr;
  673. #else
  674.         f =  (unative_t (*)(unative_t,unative_t,unative_t,...)) symaddr;
  675. #endif
  676.         printf("Result: %#zx\n", f(arg1, arg2, arg3));
  677.     }
  678.    
  679.     return 1;
  680. }
  681.  
  682.  
  683. /** Print detailed description of 'describe' command. */
  684. void desc_help(void)
  685. {
  686.     printf("Syntax: describe command_name\n");
  687. }
  688.  
  689. /** Halt the kernel.
  690.  *
  691.  * @param argv Argument vector (ignored).
  692.  *
  693.  * @return 0 on failure, 1 on success (never returns).
  694.  */
  695. int cmd_halt(cmd_arg_t *argv)
  696. {
  697.     halt();
  698.     return 1;
  699. }
  700.  
  701. /** Command for printing TLB contents.
  702.  *
  703.  * @param argv Not used.
  704.  *
  705.  * @return Always returns 1.
  706.  */
  707. int cmd_tlb(cmd_arg_t *argv)
  708. {
  709.     tlb_print();
  710.     return 1;
  711. }
  712.  
  713. /** Write 4 byte value to address */
  714. int cmd_set4(cmd_arg_t *argv)
  715. {
  716.     uint32_t *addr;
  717.     uint32_t arg1 = argv[1].intval;
  718.     bool pointer = false;
  719.  
  720.     if (((char *)argv->buffer)[0] == '*') {
  721.         addr = (uint32_t *) get_symbol_addr((char *) argv->buffer + 1);
  722.         pointer = true;
  723.     } else if (((char *) argv->buffer)[0] >= '0' &&
  724.            ((char *)argv->buffer)[0] <= '9')
  725.         addr = (uint32_t *)atoi((char *)argv->buffer);
  726.     else
  727.         addr = (uint32_t *)get_symbol_addr((char *) argv->buffer);
  728.  
  729.     if (!addr)
  730.         printf("Symbol %s not found.\n", argv->buffer);
  731.     else if (addr == (uint32_t *) -1) {
  732.         symtab_print_search((char *) argv->buffer);
  733.         printf("Duplicate symbol, be more specific.\n");
  734.     } else {
  735.         if (pointer)
  736.             addr = (uint32_t *)(*(unative_t *)addr);
  737.         printf("Writing 0x%x -> %.*p\n", arg1, sizeof(uintptr_t) * 2, addr);
  738.         *addr = arg1;
  739.        
  740.     }
  741.    
  742.     return 1;
  743. }
  744.  
  745. /** Command for listings SLAB caches
  746.  *
  747.  * @param argv Ignores
  748.  *
  749.  * @return Always 1
  750.  */
  751. int cmd_slabs(cmd_arg_t * argv) {
  752.     slab_print_list();
  753.     return 1;
  754. }
  755.  
  756.  
  757. /** Command for listings Thread information
  758.  *
  759.  * @param argv Ignores
  760.  *
  761.  * @return Always 1
  762.  */
  763. int cmd_threads(cmd_arg_t * argv) {
  764.     thread_print_list();
  765.     return 1;
  766. }
  767.  
  768. /** Command for listings Task information
  769.  *
  770.  * @param argv Ignores
  771.  *
  772.  * @return Always 1
  773.  */
  774. int cmd_tasks(cmd_arg_t * argv) {
  775.     task_print_list();
  776.     return 1;
  777. }
  778.  
  779. /** Command for listings Thread information
  780.  *
  781.  * @param argv Ignores
  782.  *
  783.  * @return Always 1
  784.  */
  785. int cmd_sched(cmd_arg_t * argv) {
  786.     sched_print_list();
  787.     return 1;
  788. }
  789.  
  790. /** Command for listing memory zones
  791.  *
  792.  * @param argv Ignored
  793.  *
  794.  * return Always 1
  795.  */
  796. int cmd_zones(cmd_arg_t * argv) {
  797.     zone_print_list();
  798.     return 1;
  799. }
  800.  
  801. /** Command for memory zone details
  802.  *
  803.  * @param argv Integer argument from cmdline expected
  804.  *
  805.  * return Always 1
  806.  */
  807. int cmd_zone(cmd_arg_t * argv) {
  808.     zone_print_one(argv[0].intval);
  809.     return 1;
  810. }
  811.  
  812. /** Command for printing task ipc details
  813.  *
  814.  * @param argv Integer argument from cmdline expected
  815.  *
  816.  * return Always 1
  817.  */
  818. int cmd_ipc_task(cmd_arg_t * argv) {
  819.     ipc_print_task(argv[0].intval);
  820.     return 1;
  821. }
  822.  
  823.  
  824. /** Command for listing processors.
  825.  *
  826.  * @param argv Ignored.
  827.  *
  828.  * return Always 1.
  829.  */
  830. int cmd_cpus(cmd_arg_t *argv)
  831. {
  832.     cpu_list();
  833.     return 1;
  834. }
  835.  
  836. /** Command for printing kernel version.
  837.  *
  838.  * @param argv Ignored.
  839.  *
  840.  * return Always 1.
  841.  */
  842. int cmd_version(cmd_arg_t *argv)
  843. {
  844.     version_print();
  845.     return 1;
  846. }
  847.  
  848. /** Command for returning console back to userspace.
  849.  *
  850.  * @param argv Ignored.
  851.  *
  852.  * return Always 1.
  853.  */
  854. int cmd_continue(cmd_arg_t *argv)
  855. {
  856.     printf("The kernel will now relinquish the console.\n");
  857.     printf("Use userspace controls to redraw the screen.\n");
  858.     arch_release_console();
  859.     return 1;
  860. }
  861.  
  862. #ifdef CONFIG_TEST
  863. /** Command for printing kernel tests list.
  864.  *
  865.  * @param argv Ignored.
  866.  *
  867.  * return Always 1.
  868.  */
  869. int cmd_tests(cmd_arg_t *argv)
  870. {
  871.     test_t *test;
  872.    
  873.     for (test = tests; test->name != NULL; test++)
  874.         printf("%s\t\t%s%s\n", test->name, test->desc, (test->safe ? "" : " (unsafe)"));
  875.    
  876.     printf("*\t\tRun all safe tests\n");
  877.     return 1;
  878. }
  879.  
  880. static bool run_test(const test_t *test)
  881. {
  882.     printf("%s\t\t%s\n", test->name, test->desc);
  883.    
  884.     /* Update and read thread accounting
  885.        for benchmarking */
  886.     ipl_t ipl = interrupts_disable();
  887.     spinlock_lock(&TASK->lock);
  888.     uint64_t t0 = task_get_accounting(TASK);
  889.     spinlock_unlock(&TASK->lock);
  890.     interrupts_restore(ipl);
  891.    
  892.     /* Execute the test */
  893.     char * ret = test->entry(false);
  894.    
  895.     /* Update and read thread accounting */
  896.     ipl = interrupts_disable();
  897.     spinlock_lock(&TASK->lock);
  898.     uint64_t dt = task_get_accounting(TASK) - t0;
  899.     spinlock_unlock(&TASK->lock);
  900.     interrupts_restore(ipl);
  901.    
  902.     uint64_t cycles;
  903.     char suffix;
  904.     order(dt, &cycles, &suffix);
  905.        
  906.     printf("Time: %llu%c cycles\n", cycles, suffix);
  907.    
  908.     if (ret == NULL) {
  909.         printf("Test passed\n");
  910.         return true;
  911.     }
  912.  
  913.     printf("%s\n", ret);
  914.     return false;
  915. }
  916.  
  917. static bool run_bench(const test_t *test, const uint32_t cnt)
  918. {
  919.     uint32_t i;
  920.     bool ret = true;
  921.     uint64_t cycles;
  922.     char suffix;
  923.    
  924.     if (cnt < 1)
  925.         return true;
  926.    
  927.     uint64_t *data = (uint64_t *) malloc(sizeof(uint64_t) * cnt, 0);
  928.     if (data == NULL) {
  929.         printf("Error allocating memory for statistics\n");
  930.         return false;
  931.     }
  932.    
  933.     for (i = 0; i < cnt; i++) {
  934.         printf("%s (%d/%d) ... ", test->name, i + 1, cnt);
  935.        
  936.         /* Update and read thread accounting
  937.            for benchmarking */
  938.         ipl_t ipl = interrupts_disable();
  939.         spinlock_lock(&TASK->lock);
  940.         uint64_t t0 = task_get_accounting(TASK);
  941.         spinlock_unlock(&TASK->lock);
  942.         interrupts_restore(ipl);
  943.        
  944.         /* Execute the test */
  945.         char * ret = test->entry(true);
  946.        
  947.         /* Update and read thread accounting */
  948.         ipl = interrupts_disable();
  949.         spinlock_lock(&TASK->lock);
  950.         uint64_t dt = task_get_accounting(TASK) - t0;
  951.         spinlock_unlock(&TASK->lock);
  952.         interrupts_restore(ipl);
  953.        
  954.         if (ret != NULL) {
  955.             printf("%s\n", ret);
  956.             ret = false;
  957.             break;
  958.         }
  959.        
  960.         data[i] = dt;
  961.         order(dt, &cycles, &suffix);
  962.         printf("OK (%llu%c cycles)\n", cycles, suffix);
  963.     }
  964.    
  965.     if (ret) {
  966.         printf("\n");
  967.        
  968.         uint64_t sum = 0;
  969.        
  970.         for (i = 0; i < cnt; i++) {
  971.             sum += data[i];
  972.         }
  973.        
  974.         order(sum / (uint64_t) cnt, &cycles, &suffix);
  975.         printf("Average\t\t%llu%c\n", cycles, suffix);
  976.     }
  977.    
  978.     free(data);
  979.    
  980.     return ret;
  981. }
  982.  
  983. /** Command for returning kernel tests
  984.  *
  985.  * @param argv Argument vector.
  986.  *
  987.  * return Always 1.
  988.  */
  989. int cmd_test(cmd_arg_t *argv)
  990. {
  991.     test_t *test;
  992.    
  993.     if (strcmp((char *) argv->buffer, "*") == 0) {
  994.         for (test = tests; test->name != NULL; test++) {
  995.             if (test->safe) {
  996.                 printf("\n");
  997.                 if (!run_test(test))
  998.                     break;
  999.             }
  1000.         }
  1001.     } else {
  1002.         bool fnd = false;
  1003.        
  1004.         for (test = tests; test->name != NULL; test++) {
  1005.             if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1006.                 fnd = true;
  1007.                 run_test(test);
  1008.                 break;
  1009.             }
  1010.         }
  1011.        
  1012.         if (!fnd)
  1013.             printf("Unknown test\n");
  1014.     }
  1015.    
  1016.     return 1;
  1017. }
  1018.  
  1019. /** Command for returning kernel tests as benchmarks
  1020.  *
  1021.  * @param argv Argument vector.
  1022.  *
  1023.  * return Always 1.
  1024.  */
  1025. int cmd_bench(cmd_arg_t *argv)
  1026. {
  1027.     test_t *test;
  1028.     uint32_t cnt = argv[1].intval;
  1029.    
  1030.     bool fnd = false;
  1031.    
  1032.     for (test = tests; test->name != NULL; test++) {
  1033.         if (strcmp(test->name, (char *) argv->buffer) == 0) {
  1034.             fnd = true;
  1035.            
  1036.             if (test->safe)
  1037.                 run_bench(test, cnt);
  1038.             else
  1039.                 printf("Unsafe test\n");
  1040.            
  1041.             break;
  1042.         }
  1043.     }
  1044.        
  1045.     if (!fnd)
  1046.         printf("Unknown test\n");
  1047.  
  1048.     return 1;
  1049. }
  1050.  
  1051. #endif
  1052.  
  1053. /** @}
  1054.  */
  1055.