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https://github.com/brain-hackers/u-boot-brain
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4c12eeb8b5
Change all files in common/ to use CMD_RET_USAGE instead of calling cmd_usage() directly. I'm not completely sure about this patch since the code since impact is small (100 byte or so on ARM) and it might need splitting into smaller patches. But for now here it is. Signed-off-by: Simon Glass <sjg@chromium.org>
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/*
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* Copyright (c) 2011 The Chromium OS Authors.
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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/*
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* TODO(clchiou): This function actually minics the bottom-half of the
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* run_command() function. Since this function has ARM-dependent timer
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* codes, we cannot merge it with the run_command() for now.
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*/
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static int run_command_and_time_it(int flag, int argc, char * const argv[],
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ulong *cycles)
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{
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cmd_tbl_t *cmdtp = find_cmd(argv[0]);
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int retval = 0;
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if (!cmdtp) {
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printf("%s: command not found\n", argv[0]);
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return 1;
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}
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if (argc > cmdtp->maxargs)
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return CMD_RET_USAGE;
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/*
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* TODO(clchiou): get_timer_masked() is only defined in certain ARM
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* boards. We could use the new timer API that Graeme is proposing
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* so that this piece of code would be arch-independent.
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*/
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*cycles = get_timer_masked();
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retval = cmdtp->cmd(cmdtp, flag, argc, argv);
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*cycles = get_timer_masked() - *cycles;
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return retval;
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}
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static void report_time(ulong cycles)
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{
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ulong minutes, seconds, milliseconds;
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ulong total_seconds, remainder;
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total_seconds = cycles / CONFIG_SYS_HZ;
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remainder = cycles % CONFIG_SYS_HZ;
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minutes = total_seconds / 60;
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seconds = total_seconds % 60;
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/* approximate millisecond value */
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milliseconds = (remainder * 1000 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ;
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printf("\ntime:");
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if (minutes)
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printf(" %lu minutes,", minutes);
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printf(" %lu.%03lu seconds, %lu ticks\n",
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seconds, milliseconds, cycles);
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}
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static int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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ulong cycles = 0;
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int retval = 0;
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if (argc == 1)
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return CMD_RET_USAGE;
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retval = run_command_and_time_it(0, argc - 1, argv + 1, &cycles);
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report_time(cycles);
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return retval;
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}
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U_BOOT_CMD(time, CONFIG_SYS_MAXARGS, 0, do_time,
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"run commands and summarize execution time",
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"command [args...]\n");
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