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/*
* 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");
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