@@ -171,6 +171,7 @@ COBJS-$(CONFIG_CMD_SPIBOOTLDR) += cmd_spibootldr.o
COBJS-$(CONFIG_CMD_STRINGS) += cmd_strings.o
COBJS-$(CONFIG_CMD_TERMINAL) += cmd_terminal.o
COBJS-$(CONFIG_CMD_TIME) += cmd_time.o
+COBJS-$(CONFIG_CMD_TRACE) += cmd_trace.o
COBJS-$(CONFIG_SYS_HUSH_PARSER) += cmd_test.o
COBJS-$(CONFIG_CMD_TPM) += cmd_tpm.o
COBJS-$(CONFIG_CMD_TSI148) += cmd_tsi148.o
new file mode 100644
@@ -0,0 +1,133 @@
+/*
+ * 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"
+);
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> --- Changes in v2: - Add cast to clarfy argument type on sandbox and x86 common/Makefile | 1 + common/cmd_trace.c | 133 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 134 insertions(+) create mode 100644 common/cmd_trace.c