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git.ipfire.org Git - thirdparty/u-boot.git/blob - common/cmd_trace.c
2 * Copyright (c) 2011 The Chromium OS Authors.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of
7 * the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 static int get_args(int argc
, char * const argv
[], char **buff
,
26 size_t *buff_ptr
, size_t *buff_size
)
31 *buff_size
= getenv_ulong("profsize", 16, 0);
32 *buff
= map_sysmem(getenv_ulong("profbase", 16, 0),
34 *buff_ptr
= getenv_ulong("profoffset", 16, 0);
36 *buff_size
= simple_strtoul(argv
[3], NULL
, 16);
37 *buff
= map_sysmem(simple_strtoul(argv
[2], NULL
, 16),
44 static int create_func_list(int argc
, char * const argv
[])
46 size_t buff_size
, avail
, buff_ptr
, used
;
51 if (get_args(argc
, argv
, &buff
, &buff_ptr
, &buff_size
))
54 avail
= buff_size
- buff_ptr
;
55 err
= trace_list_functions(buff
+ buff_ptr
, avail
, &needed
);
57 printf("Error: truncated (%#x bytes needed)\n", needed
);
58 used
= min(avail
, needed
);
59 printf("Function trace dumped to %08lx, size %#zx\n",
60 (ulong
)map_to_sysmem(buff
+ buff_ptr
), used
);
61 setenv_hex("profbase", map_to_sysmem(buff
));
62 setenv_hex("profsize", buff_size
);
63 setenv_hex("profoffset", buff_ptr
+ used
);
68 static int create_call_list(int argc
, char * const argv
[])
70 size_t buff_size
, avail
, buff_ptr
, used
;
75 if (get_args(argc
, argv
, &buff
, &buff_ptr
, &buff_size
))
78 avail
= buff_size
- buff_ptr
;
79 err
= trace_list_calls(buff
+ buff_ptr
, avail
, &needed
);
81 printf("Error: truncated (%#x bytes needed)\n", needed
);
82 used
= min(avail
, needed
);
83 printf("Call list dumped to %08lx, size %#zx\n",
84 (ulong
)map_to_sysmem(buff
+ buff_ptr
), used
);
86 setenv_hex("profbase", map_to_sysmem(buff
));
87 setenv_hex("profsize", buff_size
);
88 setenv_hex("profoffset", buff_ptr
+ used
);
93 int do_trace(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
95 const char *cmd
= argc
< 2 ? NULL
: argv
[1];
98 return cmd_usage(cmdtp
);
101 trace_set_enabled(0);
104 if (create_call_list(argc
, argv
))
105 return cmd_usage(cmdtp
);
108 trace_set_enabled(1);
111 if (create_func_list(argc
, argv
))
112 return cmd_usage(cmdtp
);
118 return CMD_RET_USAGE
;
125 trace
, 4, 1, do_trace
,
126 "trace utility commands",
127 "stats - display tracing statistics\n"
128 "trace pause - pause tracing\n"
129 "trace resume - resume tracing\n"
130 "trace funclist [<addr> <size>] - dump function list into buffer\n"
131 "trace calls [<addr> <size>] "
132 "- dump function call trace into buffer"