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/*

 * Copyright (c) 2005 Jakub Jermar

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - Redistributions in binary form must reproduce the above copyright

 *   notice, this list of conditions and the following disclaimer in the

 *   documentation and/or other materials provided with the distribution.

 * - The name of the author may not be used to endorse or promote products

 *   derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/** @addtogroup genericconsole

 * @{

 */

/**

 * @file  cmd.c

 * @brief Kernel console command wrappers.

 *

 * This file is meant to contain all wrapper functions for

 * all kconsole commands. The point is in separating

 * kconsole specific wrappers from kconsole-unaware functions

 * from other subsystems.

 */

#include <console/cmd.h>

#include <console/console.h>

#include <console/kconsole.h>

#include <print.h>

#include <panic.h>

#include <arch/types.h>

#include <adt/list.h>

#include <arch.h>

#include <config.h>

#include <func.h>

#include <string.h>

#include <macros.h>

#include <debug.h>

#include <cpu.h>

#include <mm/tlb.h>

#include <arch/mm/tlb.h>

#include <mm/frame.h>

#include <main/version.h>

#include <mm/slab.h>

#include <proc/scheduler.h>

#include <proc/thread.h>

#include <proc/task.h>

#include <ipc/ipc.h>

#include <ipc/irq.h>

#include <ipc/event.h>

#include <symtab.h>

#include <errno.h>

#ifdef CONFIG_TEST

#include <test.h>

#endif

/* Data and methods for 'help' command. */

static int cmd_help(cmd_arg_t *argv);

static cmd_info_t help_info = {

	.name = "help",

	.description = "List of supported commands.",

	.func = cmd_help,

	.argc = 0

};

static int cmd_reboot(cmd_arg_t *argv);

static cmd_info_t reboot_info = {

	.name = "reboot",

	.description = "Reboot.",

	.func = cmd_reboot,

	.argc = 0

};

static int cmd_uptime(cmd_arg_t *argv);

static cmd_info_t uptime_info = {

	.name = "uptime",

	.description = "Print uptime information.",

	.func = cmd_uptime,

	.argc = 0

};

static int cmd_continue(cmd_arg_t *argv);

static cmd_info_t continue_info = {

	.name = "continue",

	.description = "Return console back to userspace.",

	.func = cmd_continue,

	.argc = 0

};

#ifdef CONFIG_TEST

static int cmd_tests(cmd_arg_t *argv);

static cmd_info_t tests_info = {

	.name = "tests",

	.description = "Print available kernel tests.",

	.func = cmd_tests,

	.argc = 0

};

static char test_buf[MAX_CMDLINE + 1];

static int cmd_test(cmd_arg_t *argv);

static cmd_arg_t test_argv[] = {

	{

		.type = ARG_TYPE_STRING,

		.buffer = test_buf,

		.len = sizeof(test_buf)

	}

};

static cmd_info_t test_info = {

	.name = "test",

	.description = "Run kernel test.",

	.func = cmd_test,

	.argc = 1,

	.argv = test_argv

};

static int cmd_bench(cmd_arg_t *argv);

static cmd_arg_t bench_argv[] = {

	{

		.type = ARG_TYPE_STRING,

		.buffer = test_buf,

		.len = sizeof(test_buf)

	},

	{

		.type = ARG_TYPE_INT,

	}

};

static cmd_info_t bench_info = {

	.name = "bench",

	.description = "Run kernel test as benchmark.",

	.func = cmd_bench,

	.argc = 2,

	.argv = bench_argv

};

#endif

/* Data and methods for 'description' command. */

static int cmd_desc(cmd_arg_t *argv);

static void desc_help(void);

static char desc_buf[MAX_CMDLINE+1];

static cmd_arg_t desc_argv = {

	.type = ARG_TYPE_STRING,

	.buffer = desc_buf,

	.len = sizeof(desc_buf)

};

static cmd_info_t desc_info = {

	.name = "describe",

	.description = "Describe specified command.",

	.help = desc_help,

	.func = cmd_desc,

	.argc = 1,

	.argv = &desc_argv

};

/* Data and methods for 'symaddr' command. */

static int cmd_symaddr(cmd_arg_t *argv);

static char symaddr_buf[MAX_CMDLINE+1];

static cmd_arg_t symaddr_argv = {

	.type = ARG_TYPE_STRING,

	.buffer = symaddr_buf,

	.len = sizeof(symaddr_buf)

};

static cmd_info_t symaddr_info = {

	.name = "symaddr",

	.description = "Return symbol address.",

	.func = cmd_symaddr,

	.argc = 1,

	.argv = &symaddr_argv

};

static char set_buf[MAX_CMDLINE+1];

static int cmd_set4(cmd_arg_t *argv);

static cmd_arg_t set4_argv[] = {

	{

		.type = ARG_TYPE_STRING,

		.buffer = set_buf,

		.len = sizeof(set_buf)

	},

	{ 

		.type = ARG_TYPE_INT

	}

};

static cmd_info_t set4_info = {

	.name = "set4",

	.description = "set <dest_addr> <value> - 4byte version",

	.func = cmd_set4,

	.argc = 2,

	.argv = set4_argv

};

/* Data and methods for 'call0' command. */

static char call0_buf[MAX_CMDLINE + 1];

static char carg1_buf[MAX_CMDLINE + 1];

static char carg2_buf[MAX_CMDLINE + 1];

static char carg3_buf[MAX_CMDLINE + 1];

static int cmd_call0(cmd_arg_t *argv);

static cmd_arg_t call0_argv = {

	.type = ARG_TYPE_STRING,

	.buffer = call0_buf,

	.len = sizeof(call0_buf)

};

static cmd_info_t call0_info = {

	.name = "call0",

	.description = "call0 <function> -> call function().",

	.func = cmd_call0,

	.argc = 1,

	.argv = &call0_argv

};

/* Data and methods for 'mcall0' command. */

static int cmd_mcall0(cmd_arg_t *argv);

static cmd_arg_t mcall0_argv = {

	.type = ARG_TYPE_STRING,

	.buffer = call0_buf,

	.len = sizeof(call0_buf)

};

static cmd_info_t mcall0_info = {

	.name = "mcall0",

	.description = "mcall0 <function> -> call function() on each CPU.",

	.func = cmd_mcall0,

	.argc = 1,

	.argv = &mcall0_argv

};

/* Data and methods for 'call1' command. */

static int cmd_call1(cmd_arg_t *argv);

static cmd_arg_t call1_argv[] = {

	{

		.type = ARG_TYPE_STRING,

		.buffer = call0_buf,

		.len = sizeof(call0_buf)

	},

	{ 

		.type = ARG_TYPE_VAR,

		.buffer = carg1_buf,

		.len = sizeof(carg1_buf)

	}

};

static cmd_info_t call1_info = {

	.name = "call1",

	.description = "call1 <function> <arg1> -> call function(arg1).",

	.func = cmd_call1,

	.argc = 2,

	.argv = call1_argv

};

/* Data and methods for 'call2' command. */

static int cmd_call2(cmd_arg_t *argv);

static cmd_arg_t call2_argv[] = {

	{

		.type = ARG_TYPE_STRING,

		.buffer = call0_buf,

		.len = sizeof(call0_buf)

	},

	{ 

		.type = ARG_TYPE_VAR,

		.buffer = carg1_buf,

		.len = sizeof(carg1_buf)

	},

	{ 

		.type = ARG_TYPE_VAR,

		.buffer = carg2_buf,

		.len = sizeof(carg2_buf)

	}

};

static cmd_info_t call2_info = {

	.name = "call2",

	.description = "call2 <function> <arg1> <arg2> -> call function(arg1,arg2).",

	.func = cmd_call2,

	.argc = 3,

	.argv = call2_argv

};

/* Data and methods for 'call3' command. */

static int cmd_call3(cmd_arg_t *argv);

static cmd_arg_t call3_argv[] = {

	{

		.type = ARG_TYPE_STRING,

		.buffer = call0_buf,

		.len = sizeof(call0_buf)

	},

	{ 

		.type = ARG_TYPE_VAR,

		.buffer = carg1_buf,

		.len = sizeof(carg1_buf)

	},

	{ 

		.type = ARG_TYPE_VAR,

		.buffer = carg2_buf,

		.len = sizeof(carg2_buf)

	},

	{ 

		.type = ARG_TYPE_VAR,

		.buffer = carg3_buf,

		.len = sizeof(carg3_buf)

	}

};

static cmd_info_t call3_info = {

	.name = "call3",

	.description = "call3 <function> <arg1> <arg2> <arg3> -> call function(arg1,arg2,arg3).",

	.func = cmd_call3,

	.argc = 4,

	.argv = call3_argv

};

/* Data and methods for 'halt' command. */

static int cmd_halt(cmd_arg_t *argv);

static cmd_info_t halt_info = {

	.name = "halt",

	.description = "Halt the kernel.",

	.func = cmd_halt,

	.argc = 0

};

/* Data and methods for 'physmem' command. */

static int cmd_physmem(cmd_arg_t *argv);

cmd_info_t physmem_info = {

	.name = "physmem",

	.description = "Print physical memory configuration.",

	.help = NULL,

	.func = cmd_physmem,

	.argc = 0,

	.argv = NULL

};

/* Data and methods for 'tlb' command. */

static int cmd_tlb(cmd_arg_t *argv);

cmd_info_t tlb_info = {

	.name = "tlb",

	.description = "Print TLB of current processor.",

	.help = NULL,

	.func = cmd_tlb,

	.argc = 0,

	.argv = NULL

};

static int cmd_threads(cmd_arg_t *argv);

static cmd_info_t threads_info = {

	.name = "threads",

	.description = "List all threads.",

	.func = cmd_threads,

	.argc = 0

};

static int cmd_tasks(cmd_arg_t *argv);

static cmd_info_t tasks_info = {

	.name = "tasks",

	.description = "List all tasks.",

	.func = cmd_tasks,

	.argc = 0

};

static int cmd_sched(cmd_arg_t *argv);

static cmd_info_t sched_info = {

	.name = "scheduler",

	.description = "List all scheduler information.",

	.func = cmd_sched,

	.argc = 0

};

static int cmd_slabs(cmd_arg_t *argv);

static cmd_info_t slabs_info = {

	.name = "slabs",

	.description = "List slab caches.",

	.func = cmd_slabs,

	.argc = 0

};

/* Data and methods for 'zones' command */

static int cmd_zones(cmd_arg_t *argv);

static cmd_info_t zones_info = {

	.name = "zones",

	.description = "List of memory zones.",

	.func = cmd_zones,

	.argc = 0

};

/* Data and methods for 'ipc' command */

static int cmd_ipc(cmd_arg_t *argv);

static cmd_arg_t ipc_argv = {

	.type = ARG_TYPE_INT,

};

static cmd_info_t ipc_info = {

	.name = "ipc",

	.description = "ipc <taskid> Show IPC information of given task.",

	.func = cmd_ipc,

	.argc = 1,

	.argv = &ipc_argv

};

/* Data and methods for 'zone' command */

static int cmd_zone(cmd_arg_t *argv);

static cmd_arg_t zone_argv = {

	.type = ARG_TYPE_INT,

};

static cmd_info_t zone_info = {

	.name = "zone",

	.description = "Show memory zone structure.",

	.func = cmd_zone,

	.argc = 1,

	.argv = &zone_argv

};

/* Data and methods for 'cpus' command. */

static int cmd_cpus(cmd_arg_t *argv);

cmd_info_t cpus_info = {

	.name = "cpus",

	.description = "List all processors.",

	.help = NULL,

	.func = cmd_cpus,

	.argc = 0,

	.argv = NULL

};

/* Data and methods for 'version' command. */

static int cmd_version(cmd_arg_t *argv);

cmd_info_t version_info = {

	.name = "version",

	.description = "Print version information.",

	.help = NULL,

	.func = cmd_version,

	.argc = 0,

	.argv = NULL

};

static cmd_info_t *basic_commands[] = {

	&call0_info,

	&mcall0_info,

	&call1_info,

	&call2_info,

	&call3_info,

	&continue_info,

	&cpus_info,

	&desc_info,

	&reboot_info,

	&uptime_info,

	&halt_info,

	&help_info,

	&ipc_info,

	&set4_info,

	&slabs_info,

	&symaddr_info,

	&sched_info,

	&threads_info,

	&tasks_info,

	&physmem_info,

	&tlb_info,

	&version_info,

	&zones_info,

	&zone_info,

#ifdef CONFIG_TEST

	&tests_info,

	&test_info,

	&bench_info,

#endif

	NULL

};

/** Initialize command info structure.

 *

 * @param cmd Command info structure.

 *

 */

void cmd_initialize(cmd_info_t *cmd)

{

	spinlock_initialize(&cmd->lock, "cmd");

	link_initialize(&cmd->link);

}

/** Initialize and register commands. */

void cmd_init(void)

{

	unsigned int i;

	for (i = 0; basic_commands[i]; i++) {

		cmd_initialize(basic_commands[i]);

		if (!cmd_register(basic_commands[i]))

			printf("Cannot register command %s\n", basic_commands[i]->name);

	}

}

/** List supported commands.

 *

 * @param argv Argument vector.

 *

 * @return 0 on failure, 1 on success.

 */

int cmd_help(cmd_arg_t *argv)

{

	spinlock_lock(&cmd_lock);

	link_t *cur;

	count_t len = 0;

	for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {

		cmd_info_t *hlp;

		hlp = list_get_instance(cur, cmd_info_t, link);

		spinlock_lock(&hlp->lock);

		if (str_length(hlp->name) > len)

			len = str_length(hlp->name);

		spinlock_unlock(&hlp->lock);

	}

	for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {

		cmd_info_t *hlp;

		hlp = list_get_instance(cur, cmd_info_t, link);

		spinlock_lock(&hlp->lock);

		printf("%-*s %s\n", len, hlp->name, hlp->description);

		spinlock_unlock(&hlp->lock);

	}

	spinlock_unlock(&cmd_lock);

	return 1;

}

/** Reboot the system.

 *

 * @param argv Argument vector.

 *

 * @return 0 on failure, 1 on success.

 */

int cmd_reboot(cmd_arg_t *argv)

{

	reboot();

	/* Not reached */

	return 1;

}

/** Print system uptime information.

 *

 * @param argv Argument vector.

 *

 * @return 0 on failure, 1 on success.

 */

int cmd_uptime(cmd_arg_t *argv)

{

	ASSERT(uptime);

	/* This doesn't have to be very accurate */

	unative_t sec = uptime->seconds1;

	printf("Up %" PRIun " days, %" PRIun " hours, %" PRIun " minutes, %" PRIun " seconds\n",

		sec / 86400, (sec % 86400) / 3600, (sec % 3600) / 60, sec % 60);

	return 1;

}

/** Describe specified command.

 *

 * @param argv Argument vector.

 *

 * @return 0 on failure, 1 on success.

 */

int cmd_desc(cmd_arg_t *argv)

{

	link_t *cur;

	spinlock_lock(&cmd_lock);

	for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {

		cmd_info_t *hlp;

		hlp = list_get_instance(cur, cmd_info_t, link);

		spinlock_lock(&hlp->lock);

		if (str_lcmp(hlp->name, (const char *) argv->buffer, str_length(hlp->name)) == 0) {

			printf("%s - %s\n", hlp->name, hlp->description);

			if (hlp->help)

				hlp->help();

			spinlock_unlock(&hlp->lock);

			break;

		}

		spinlock_unlock(&hlp->lock);

	}

	spinlock_unlock(&cmd_lock);	

	return 1;

}

/** Search symbol table */

int cmd_symaddr(cmd_arg_t *argv)

{

	symtab_print_search((char *) argv->buffer);

	return 1;

}

/** Call function with zero parameters */

int cmd_call0(cmd_arg_t *argv)

{

	uintptr_t symaddr;

	char *symbol;

	unative_t (*fnc)(void);

	fncptr_t fptr;

	int rc;

	symbol = (char *) argv->buffer;

	rc = symtab_addr_lookup(symbol, &symaddr);

	if (rc == ENOENT)

		printf("Symbol %s not found.\n", symbol);

	else if (rc == EOVERFLOW) {

		symtab_print_search(symbol);

		printf("Duplicate symbol, be more specific.\n");

	} else if (rc == EOK) {

		fnc = (unative_t (*)(void)) arch_construct_function(&fptr,

		    (void *) symaddr, (void *) cmd_call0);

		printf("Calling %s() (%p)\n", symbol, symaddr);

		printf("Result: %#" PRIxn "\n", fnc());

	} else {

		printf("No symbol information available.\n");

	}

	return 1;

}

/** Call function with zero parameters on each CPU */

int cmd_mcall0(cmd_arg_t *argv)

{

	/*

	 * For each CPU, create a thread which will

	 * call the function.

	 */

	count_t i;

	for (i = 0; i < config.cpu_count; i++) {

		if (!cpus[i].active)

			continue;

		thread_t *t;

		if ((t = thread_create((void (*)(void *)) cmd_call0, (void *) argv, TASK, THREAD_FLAG_WIRED, "call0", false))) {

			spinlock_lock(&t->lock);

			t->cpu = &cpus[i];

			spinlock_unlock(&t->lock);

			printf("cpu%u: ", i);

			thread_ready(t);

			thread_join(t);

			thread_detach(t);

		} else

			printf("Unable to create thread for cpu%u\n", i);

	}

	return 1;

}

/** Call function with one parameter */

int cmd_call1(cmd_arg_t *argv)

{

	uintptr_t symaddr;

	char *symbol;

	unative_t (*fnc)(unative_t, ...);

	unative_t arg1 = argv[1].intval;

	fncptr_t fptr;

	int rc;

	symbol = (char *) argv->buffer;

	rc = symtab_addr_lookup(symbol, &symaddr);

	if (rc == ENOENT) {

		printf("Symbol %s not found.\n", symbol);

	} else if (rc == EOVERFLOW) {

		symtab_print_search(symbol);

		printf("Duplicate symbol, be more specific.\n");

	} else if (rc == EOK) {

		fnc = (unative_t (*)(unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call1);

		printf("Calling f(%#" PRIxn "): %p: %s\n", arg1, symaddr, symbol);

		printf("Result: %#" PRIxn "\n", fnc(arg1));

	} else {

		printf("No symbol information available.\n");

	}

	return 1;

}

/** Call function with two parameters */

int cmd_call2(cmd_arg_t *argv)

{

	uintptr_t symaddr;

	char *symbol;

	unative_t (*fnc)(unative_t, unative_t, ...);

	unative_t arg1 = argv[1].intval;

	unative_t arg2 = argv[2].intval;

	fncptr_t fptr;

	int rc;

	symbol = (char *) argv->buffer;

	rc = symtab_addr_lookup(symbol, &symaddr);

	if (rc == ENOENT) {

		printf("Symbol %s not found.\n", symbol);

	} else if (rc == EOVERFLOW) {

		symtab_print_search(symbol);

		printf("Duplicate symbol, be more specific.\n");

	} else if (rc == EOK) {

		fnc = (unative_t (*)(unative_t, unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call2);

		printf("Calling f(%#" PRIxn ", %#" PRIxn "): %p: %s\n", 

		       arg1, arg2, symaddr, symbol);

		printf("Result: %#" PRIxn "\n", fnc(arg1, arg2));

	} else {

		printf("No symbol information available.\n");

	}

	return 1;

}

/** Call function with three parameters */

int cmd_call3(cmd_arg_t *argv)

{

	uintptr_t symaddr;

	char *symbol;

	unative_t (*fnc)(unative_t, unative_t, unative_t, ...);

	unative_t arg1 = argv[1].intval;

	unative_t arg2 = argv[2].intval;

	unative_t arg3 = argv[3].intval;

	fncptr_t fptr;

	int rc;

	symbol = (char *) argv->buffer;

	rc = symtab_addr_lookup(symbol, &symaddr);

	if (rc == ENOENT) {

		printf("Symbol %s not found.\n", symbol);

	} else if (rc == EOVERFLOW) {

		symtab_print_search(symbol);

		printf("Duplicate symbol, be more specific.\n");

	} else if (rc == EOK) {

		fnc = (unative_t (*)(unative_t, unative_t, unative_t, ...)) arch_construct_function(&fptr, (void *) symaddr, (void *) cmd_call3);

		printf("Calling f(%#" PRIxn ",%#" PRIxn ", %#" PRIxn "): %p: %s\n", 

		       arg1, arg2, arg3, symaddr, symbol);

		printf("Result: %#" PRIxn "\n", fnc(arg1, arg2, arg3));

	} else {

		printf("No symbol information available.\n");

	}

	return 1;

}

/** Print detailed description of 'describe' command. */

void desc_help(void)

{

	printf("Syntax: describe command_name\n");

}

/** Halt the kernel.

 *

 * @param argv Argument vector (ignored).

 *

 * @return 0 on failure, 1 on success (never returns).

 */

int cmd_halt(cmd_arg_t *argv)

{

	halt();

	return 1;

}

/** Command for printing TLB contents.

 *

 * @param argv Not used.

 *

 * @return Always returns 1.

 */

int cmd_tlb(cmd_arg_t *argv)

{

	tlb_print();

	return 1;

}

/** Command for printing physical memory configuration.

 *

 * @param argv Not used.

 *

 * @return Always returns 1.

 */

int cmd_physmem(cmd_arg_t *argv)

{

	physmem_print();

	return 1;

}

/** Write 4 byte value to address */

int cmd_set4(cmd_arg_t *argv)

{

	uintptr_t addr;

	uint32_t arg1 = argv[1].intval;

	bool pointer = false;

	int rc;

	if (((char *)argv->buffer)[0] == '*') {

		rc = symtab_addr_lookup((char *) argv->buffer + 1, &addr);

		pointer = true;

	} else if (((char *) argv->buffer)[0] >= '0' && 

		   ((char *)argv->buffer)[0] <= '9') {

		rc = EOK;

		addr = atoi((char *)argv->buffer);

	} else {

		rc = symtab_addr_lookup((char *) argv->buffer, &addr);

	}

	if (rc == ENOENT)

		printf("Symbol %s not found.\n", argv->buffer);

	else if (rc == EOVERFLOW) {

		symtab_print_search((char *) argv->buffer);

		printf("Duplicate symbol, be more specific.\n");

	} else if (rc == EOK) {

		if (pointer)

			addr = *(uintptr_t *) addr;

		printf("Writing %#" PRIx64 " -> %p\n", arg1, addr);

		*(uint32_t *) addr = arg1;

	} else {

		printf("No symbol information available.\n");

	}

	return 1;

}

/** Command for listings SLAB caches

 *

 * @param argv Ignores

 *

 * @return Always 1

 */

int cmd_slabs(cmd_arg_t * argv) {

	slab_print_list();

	return 1;

}

/** Command for listings Thread information

 *

 * @param argv Ignores

 *

 * @return Always 1

 */

int cmd_threads(cmd_arg_t * argv) {

	thread_print_list();

	return 1;

}

/** Command for listings Task information

 *

 * @param argv Ignores

 *

 * @return Always 1

 */

int cmd_tasks(cmd_arg_t * argv) {

	task_print_list();

	return 1;

}

/** Command for listings Thread information

 *

 * @param argv Ignores

 *

 * @return Always 1

 */

int cmd_sched(cmd_arg_t * argv) {

	sched_print_list();

	return 1;

}

/** Command for listing memory zones

 *

 * @param argv Ignored

 *

 * return Always 1

 */

int cmd_zones(cmd_arg_t * argv) {

	zone_print_list();

	return 1;

}

/** Command for memory zone details

 *

 * @param argv Integer argument from cmdline expected

 *

 * return Always 1

 */

int cmd_zone(cmd_arg_t * argv) {

	zone_print_one(argv[0].intval);

	return 1;

}

/** Command for printing task ipc details

 *

 * @param argv Integer argument from cmdline expected

 *

 * return Always 1

 */

int cmd_ipc(cmd_arg_t * argv) {

	ipc_print_task(argv[0].intval);

	return 1;

}

/** Command for listing processors.

 *

 * @param argv Ignored.

 *

 * return Always 1.

 */

int cmd_cpus(cmd_arg_t *argv)

{

	cpu_list();

	return 1;

}

/** Command for printing kernel version.

 *

 * @param argv Ignored.

 *

 * return Always 1.

 */

int cmd_version(cmd_arg_t *argv)

{

	version_print();

	return 1;

}

/** Command for returning console back to userspace.

 *

 * @param argv Ignored.

 *

 * return Always 1.

 */

int cmd_continue(cmd_arg_t *argv)

{

	printf("The kernel will now relinquish the console.\n");

	release_console();

	event_notify_0(EVENT_KCONSOLE);

	indev_pop_character(stdin);

	return 1;

}

#ifdef CONFIG_TEST

/** Command for printing kernel tests list.

 *

 * @param argv Ignored.

 *

 * return Always 1.

 */

int cmd_tests(cmd_arg_t *argv)

{

	count_t len = 0;

	test_t *test;

	for (test = tests; test->name != NULL; test++) {

		if (str_length(test->name) > len)

			len = str_length(test->name);

	}

	for (test = tests; test->name != NULL; test++)

		printf("%-*s %s%s\n", len, test->name, test->desc, (test->safe ? "" : " (unsafe)"));

	printf("%-*s Run all safe tests\n", len, "*");

	return 1;

}

static bool run_test(const test_t *test)

{

	printf("%s (%s)\n", test->name, test->desc);

	/* Update and read thread accounting

	   for benchmarking */

	ipl_t ipl = interrupts_disable();

	spinlock_lock(&TASK->lock);

	uint64_t t0 = task_get_accounting(TASK);

	spinlock_unlock(&TASK->lock);

	interrupts_restore(ipl);

	/* Execute the test */

	test_quiet = false;

	char *ret = test->entry();

	/* Update and read thread accounting */

	ipl = interrupts_disable();

	spinlock_lock(&TASK->lock);

	uint64_t dt = task_get_accounting(TASK) - t0;

	spinlock_unlock(&TASK->lock);

	interrupts_restore(ipl);

	uint64_t cycles;

	char suffix;

	order(dt, &cycles, &suffix);

	printf("Time: %" PRIu64 "%c cycles\n", cycles, suffix);

	if (ret == NULL) {

		printf("Test passed\n");

		return true;

	}

	printf("%s\n", ret);

	return false;

}

static bool run_bench(const test_t *test, const uint32_t cnt)

{

	uint32_t i;

	bool ret = true;

	uint64_t cycles;

	char suffix;

	if (cnt < 1)

		return true;

	uint64_t *data = (uint64_t *) malloc(sizeof(uint64_t) * cnt, 0);

	if (data == NULL) {

		printf("Error allocating memory for statistics\n");

		return false;

	}

	for (i = 0; i < cnt; i++) {

		printf("%s (%u/%u) ... ", test->name, i + 1, cnt);

		/* Update and read thread accounting

		   for benchmarking */

		ipl_t ipl = interrupts_disable();

		spinlock_lock(&TASK->lock);

		uint64_t t0 = task_get_accounting(TASK);

		spinlock_unlock(&TASK->lock);

		interrupts_restore(ipl);

		/* Execute the test */

		test_quiet = true;

		char * ret = test->entry();

		/* Update and read thread accounting */

		ipl = interrupts_disable();

		spinlock_lock(&TASK->lock);

		uint64_t dt = task_get_accounting(TASK) - t0;

		spinlock_unlock(&TASK->lock);

		interrupts_restore(ipl);

		if (ret != NULL) {

			printf("%s\n", ret);

			ret = false;

			break;

		}

		data[i] = dt;

		order(dt, &cycles, &suffix);

		printf("OK (%" PRIu64 "%c cycles)\n", cycles, suffix);

	}

	if (ret) {

		printf("\n");

		uint64_t sum = 0;

		for (i = 0; i < cnt; i++) {

			sum += data[i];

		}

		order(sum / (uint64_t) cnt, &cycles, &suffix);

		printf("Average\t\t%" PRIu64 "%c\n", cycles, suffix);

	}