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 Reviewed-by: Simon Glass sjg@chromium.org
---
Changes in v5: - Fixed portability issue in printf (trini)
Changes in v4: None Changes in v3: None Changes in v2: None Changes in v1: None
cmd/iotrace.c | 36 +++++++++++++++++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-)
diff --git a/cmd/iotrace.c b/cmd/iotrace.c index 601b8c8e32..f8ce3398af 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%08llx\n", + cur_record->timestamp, + cur_record->value, + (unsigned long long)cur_record->addr); + else + printf("%08llu: 0x%08lx <-- 0x%08llx\n", + cur_record->timestamp, + cur_record->value, + (unsigned long long)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 <address> <size> - set iotrace buffer\n" "iotrace limit <address> <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" );