[U-Boot] [PATCH 5/5] cmd: iotrace: add dump trace command

Ramon Fried
2018-05-24T19:36:04Z

Add dump trace command which dump all trace
buffer content in a much more readable fashion
than md.

Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
---
cmd/iotrace.c | 36 +++++++++++++++++++++++++++++++++++-
1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/cmd/iotrace.c b/cmd/iotrace.c
index 601b8c8e32..f98eb54234 100644
--- a/cmd/iotrace.c
+++ b/cmd/iotrace.c
@@ -24,6 +24,36 @@ static void do_print_stats(void)
printf("CRC32: %08lx\n", (ulong)iotrace_get_checksum());
}

+static void do_print_trace(void)
+{
+ ulong start, size, offset, count;
+
+ struct iotrace_record *cur_record;
+
+ iotrace_get_buffer(&start, &size, &offset, &count);
+
+ if (!start || !size || !count)
+ return;
+
+ printf("Timestamp Value Address\n");
+
+ cur_record = (struct iotrace_record *)start;
+ for (int i = 0; i < count; i++) {
+ if (cur_record->flags & IOT_WRITE)
+ printf("%08llu: 0x%08lx --> 0x%lx08\n",
+ cur_record->timestamp,
+ cur_record->value,
+ cur_record->addr);
+ else
+ printf("%08llu: 0x%08lx <-- 0x%lx08\n",
+ cur_record->timestamp,
+ cur_record->value,
+ cur_record->addr);
+
+ cur_record++;
+ }
+}
+
static int do_set_buffer(int argc, char * const argv[])
{
ulong addr = 0, size = 0;
@@ -76,6 +106,9 @@ int do_iotrace(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
case 's':
do_print_stats();
break;
+ case 'd':
+ do_print_trace();
+ break;
default:
return CMD_RET_USAGE;
}
@@ -90,5 +123,6 @@ U_BOOT_CMD(
"iotrace buffer <size> - set iotrace buffer\n"
"iotrace limit <size> - set iotrace region limit\n"
"iotrace pause - pause tracing\n"
- "iotrace resume - resume tracing"
+ "iotrace resume - resume tracing\n"
+ "iotrace dump - dump iotrace buffer"
);
--
2.17.0