mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
cabcbb56c8
Add a trace command with sub-commands to start/stop tracing, print out statistics and dump trace information to memory for later upload to a host. Signed-off-by: Simon Glass <sjg@chromium.org>
133 lines
3.5 KiB
C
133 lines
3.5 KiB
C
/*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <trace.h>
|
|
#include <asm/io.h>
|
|
|
|
static int get_args(int argc, char * const argv[], char **buff,
|
|
size_t *buff_ptr, size_t *buff_size)
|
|
{
|
|
if (argc < 2)
|
|
return -1;
|
|
if (argc < 4) {
|
|
*buff_size = getenv_ulong("profsize", 16, 0);
|
|
*buff = map_sysmem(getenv_ulong("profbase", 16, 0),
|
|
*buff_size);
|
|
*buff_ptr = getenv_ulong("profoffset", 16, 0);
|
|
} else {
|
|
*buff_size = simple_strtoul(argv[3], NULL, 16);
|
|
*buff = map_sysmem(simple_strtoul(argv[2], NULL, 16),
|
|
*buff_size);
|
|
*buff_ptr = 0;
|
|
};
|
|
return 0;
|
|
}
|
|
|
|
static int create_func_list(int argc, char * const argv[])
|
|
{
|
|
size_t buff_size, avail, buff_ptr, used;
|
|
unsigned int needed;
|
|
char *buff;
|
|
int err;
|
|
|
|
if (get_args(argc, argv, &buff, &buff_ptr, &buff_size))
|
|
return -1;
|
|
|
|
avail = buff_size - buff_ptr;
|
|
err = trace_list_functions(buff + buff_ptr, avail, &needed);
|
|
if (err)
|
|
printf("Error: truncated (%#x bytes needed)\n", needed);
|
|
used = min(avail, needed);
|
|
printf("Function trace dumped to %08lx, size %#zx\n",
|
|
(ulong)map_to_sysmem(buff + buff_ptr), used);
|
|
setenv_hex("profbase", map_to_sysmem(buff));
|
|
setenv_hex("profsize", buff_size);
|
|
setenv_hex("profoffset", buff_ptr + used);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int create_call_list(int argc, char * const argv[])
|
|
{
|
|
size_t buff_size, avail, buff_ptr, used;
|
|
unsigned int needed;
|
|
char *buff;
|
|
int err;
|
|
|
|
if (get_args(argc, argv, &buff, &buff_ptr, &buff_size))
|
|
return -1;
|
|
|
|
avail = buff_size - buff_ptr;
|
|
err = trace_list_calls(buff + buff_ptr, avail, &needed);
|
|
if (err)
|
|
printf("Error: truncated (%#x bytes needed)\n", needed);
|
|
used = min(avail, needed);
|
|
printf("Call list dumped to %08lx, size %#zx\n",
|
|
(ulong)map_to_sysmem(buff + buff_ptr), used);
|
|
|
|
setenv_hex("profbase", map_to_sysmem(buff));
|
|
setenv_hex("profsize", buff_size);
|
|
setenv_hex("profoffset", buff_ptr + used);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int do_trace(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
const char *cmd = argc < 2 ? NULL : argv[1];
|
|
|
|
if (!cmd)
|
|
return cmd_usage(cmdtp);
|
|
switch (*cmd) {
|
|
case 'p':
|
|
trace_set_enabled(0);
|
|
break;
|
|
case 'c':
|
|
if (create_call_list(argc, argv))
|
|
return cmd_usage(cmdtp);
|
|
break;
|
|
case 'r':
|
|
trace_set_enabled(1);
|
|
break;
|
|
case 'f':
|
|
if (create_func_list(argc, argv))
|
|
return cmd_usage(cmdtp);
|
|
break;
|
|
case 's':
|
|
trace_print_stats();
|
|
break;
|
|
default:
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
trace, 4, 1, do_trace,
|
|
"trace utility commands",
|
|
"stats - display tracing statistics\n"
|
|
"trace pause - pause tracing\n"
|
|
"trace resume - resume tracing\n"
|
|
"trace funclist [<addr> <size>] - dump function list into buffer\n"
|
|
"trace calls [<addr> <size>] "
|
|
"- dump function call trace into buffer"
|
|
);
|