| /* |
| * Copyright (c) 2011 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| */ |
| |
| /* time - run a command and report its run time */ |
| |
| #include <common.h> |
| #include <command.h> |
| |
| static void report_time(unsigned long int cycles) |
| { |
| #ifdef CONFIG_SYS_HZ |
| unsigned long int minutes, seconds, milliseconds; |
| unsigned long int total_seconds, remainder; |
| |
| total_seconds = cycles / CONFIG_SYS_HZ; |
| remainder = cycles % CONFIG_SYS_HZ; |
| minutes = total_seconds / 60; |
| seconds = total_seconds % 60; |
| /* approximate millisecond value */ |
| milliseconds = (remainder * 1000 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ; |
| |
| printf("time:"); |
| if (minutes) |
| printf(" %lu minutes,", minutes); |
| printf(" %lu.%03lu seconds,", seconds, milliseconds); |
| printf(" %lu ticks\n", cycles); |
| #else |
| printf("CONFIG_SYS_HZ not defined\n"); |
| printf("time: %lu ticks\n", cycles); |
| #endif |
| } |
| |
| int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| { |
| const int target_argc = argc - 1; |
| int retval = 0; |
| unsigned long int cycles = 0; |
| cmd_tbl_t *target_cmdtp = NULL; |
| |
| if (argc == 1) { |
| printf("no command provided\n"); |
| return 1; |
| } |
| |
| /* parse command */ |
| target_cmdtp = find_cmd(argv[1]); |
| if (!target_cmdtp) { |
| printf("command not found: %s\n", argv[1]); |
| return 1; |
| } |
| |
| if (target_argc > target_cmdtp->maxargs) { |
| printf("maxarags exceeded: %d > %d\n", target_argc, |
| target_cmdtp->maxargs); |
| return 1; |
| } |
| |
| /* run the command and report run time */ |
| cycles = get_timer_masked(); |
| retval = target_cmdtp->cmd(target_cmdtp, 0, target_argc, argv + 1); |
| cycles = get_timer_masked() - cycles; |
| |
| putc('\n'); |
| report_time(cycles); |
| |
| return retval; |
| } |
| |
| U_BOOT_CMD(time, CONFIG_SYS_MAXARGS, 0, do_time, |
| "run a command and report its run time", |
| "command [args...]\n" |
| "the return value of time is the return value of " |
| "the command it executed, " |
| "or non-zero if there is an internal error of time.\n"); |