1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
22e192b24SSimon Glass /*
32e192b24SSimon Glass * Copyright (c) 2011 The Chromium OS Authors.
42e192b24SSimon Glass */
52e192b24SSimon Glass
62e192b24SSimon Glass #include <common.h>
72e192b24SSimon Glass #include <command.h>
82e192b24SSimon Glass #include <mapmem.h>
92e192b24SSimon Glass #include <trace.h>
102e192b24SSimon Glass #include <asm/io.h>
112e192b24SSimon Glass
get_args(int argc,char * const argv[],char ** buff,size_t * buff_ptr,size_t * buff_size)122e192b24SSimon Glass static int get_args(int argc, char * const argv[], char **buff,
132e192b24SSimon Glass size_t *buff_ptr, size_t *buff_size)
142e192b24SSimon Glass {
152e192b24SSimon Glass if (argc < 2)
162e192b24SSimon Glass return -1;
172e192b24SSimon Glass if (argc < 4) {
18bfebc8c9SSimon Glass *buff_size = env_get_ulong("profsize", 16, 0);
19bfebc8c9SSimon Glass *buff = map_sysmem(env_get_ulong("profbase", 16, 0),
202e192b24SSimon Glass *buff_size);
21bfebc8c9SSimon Glass *buff_ptr = env_get_ulong("profoffset", 16, 0);
222e192b24SSimon Glass } else {
232e192b24SSimon Glass *buff_size = simple_strtoul(argv[3], NULL, 16);
242e192b24SSimon Glass *buff = map_sysmem(simple_strtoul(argv[2], NULL, 16),
252e192b24SSimon Glass *buff_size);
262e192b24SSimon Glass *buff_ptr = 0;
272e192b24SSimon Glass };
282e192b24SSimon Glass return 0;
292e192b24SSimon Glass }
302e192b24SSimon Glass
create_func_list(int argc,char * const argv[])312e192b24SSimon Glass static int create_func_list(int argc, char * const argv[])
322e192b24SSimon Glass {
332e192b24SSimon Glass size_t buff_size, avail, buff_ptr, used;
342e192b24SSimon Glass unsigned int needed;
352e192b24SSimon Glass char *buff;
362e192b24SSimon Glass int err;
372e192b24SSimon Glass
382e192b24SSimon Glass if (get_args(argc, argv, &buff, &buff_ptr, &buff_size))
392e192b24SSimon Glass return -1;
402e192b24SSimon Glass
412e192b24SSimon Glass avail = buff_size - buff_ptr;
422e192b24SSimon Glass err = trace_list_functions(buff + buff_ptr, avail, &needed);
432e192b24SSimon Glass if (err)
442e192b24SSimon Glass printf("Error: truncated (%#x bytes needed)\n", needed);
455eca9779SSimon Glass used = min(avail, (size_t)needed);
462e192b24SSimon Glass printf("Function trace dumped to %08lx, size %#zx\n",
472e192b24SSimon Glass (ulong)map_to_sysmem(buff + buff_ptr), used);
48018f5303SSimon Glass env_set_hex("profbase", map_to_sysmem(buff));
49018f5303SSimon Glass env_set_hex("profsize", buff_size);
50018f5303SSimon Glass env_set_hex("profoffset", buff_ptr + used);
512e192b24SSimon Glass
522e192b24SSimon Glass return 0;
532e192b24SSimon Glass }
542e192b24SSimon Glass
create_call_list(int argc,char * const argv[])552e192b24SSimon Glass static int create_call_list(int argc, char * const argv[])
562e192b24SSimon Glass {
572e192b24SSimon Glass size_t buff_size, avail, buff_ptr, used;
582e192b24SSimon Glass unsigned int needed;
592e192b24SSimon Glass char *buff;
602e192b24SSimon Glass int err;
612e192b24SSimon Glass
622e192b24SSimon Glass if (get_args(argc, argv, &buff, &buff_ptr, &buff_size))
632e192b24SSimon Glass return -1;
642e192b24SSimon Glass
652e192b24SSimon Glass avail = buff_size - buff_ptr;
662e192b24SSimon Glass err = trace_list_calls(buff + buff_ptr, avail, &needed);
672e192b24SSimon Glass if (err)
682e192b24SSimon Glass printf("Error: truncated (%#x bytes needed)\n", needed);
695eca9779SSimon Glass used = min(avail, (size_t)needed);
702e192b24SSimon Glass printf("Call list dumped to %08lx, size %#zx\n",
712e192b24SSimon Glass (ulong)map_to_sysmem(buff + buff_ptr), used);
722e192b24SSimon Glass
73018f5303SSimon Glass env_set_hex("profbase", map_to_sysmem(buff));
74018f5303SSimon Glass env_set_hex("profsize", buff_size);
75018f5303SSimon Glass env_set_hex("profoffset", buff_ptr + used);
762e192b24SSimon Glass
772e192b24SSimon Glass return 0;
782e192b24SSimon Glass }
792e192b24SSimon Glass
do_trace(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])802e192b24SSimon Glass int do_trace(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
812e192b24SSimon Glass {
822e192b24SSimon Glass const char *cmd = argc < 2 ? NULL : argv[1];
832e192b24SSimon Glass
842e192b24SSimon Glass if (!cmd)
852e192b24SSimon Glass return cmd_usage(cmdtp);
862e192b24SSimon Glass switch (*cmd) {
872e192b24SSimon Glass case 'p':
882e192b24SSimon Glass trace_set_enabled(0);
892e192b24SSimon Glass break;
902e192b24SSimon Glass case 'c':
912e192b24SSimon Glass if (create_call_list(argc, argv))
922e192b24SSimon Glass return cmd_usage(cmdtp);
932e192b24SSimon Glass break;
942e192b24SSimon Glass case 'r':
952e192b24SSimon Glass trace_set_enabled(1);
962e192b24SSimon Glass break;
972e192b24SSimon Glass case 'f':
982e192b24SSimon Glass if (create_func_list(argc, argv))
992e192b24SSimon Glass return cmd_usage(cmdtp);
1002e192b24SSimon Glass break;
1012e192b24SSimon Glass case 's':
1022e192b24SSimon Glass trace_print_stats();
1032e192b24SSimon Glass break;
1042e192b24SSimon Glass default:
1052e192b24SSimon Glass return CMD_RET_USAGE;
1062e192b24SSimon Glass }
1072e192b24SSimon Glass
1082e192b24SSimon Glass return 0;
1092e192b24SSimon Glass }
1102e192b24SSimon Glass
1112e192b24SSimon Glass U_BOOT_CMD(
1122e192b24SSimon Glass trace, 4, 1, do_trace,
1132e192b24SSimon Glass "trace utility commands",
1142e192b24SSimon Glass "stats - display tracing statistics\n"
1152e192b24SSimon Glass "trace pause - pause tracing\n"
1162e192b24SSimon Glass "trace resume - resume tracing\n"
1172e192b24SSimon Glass "trace funclist [<addr> <size>] - dump function list into buffer\n"
1182e192b24SSimon Glass "trace calls [<addr> <size>] "
1192e192b24SSimon Glass "- dump function call trace into buffer"
1202e192b24SSimon Glass );
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