diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2016-07-06 22:25:08 +0300 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2016-11-15 23:13:59 +0300 |
| commit | fa32e8557b470f5ff90babc6cbacc61535a81a0f (patch) | |
| tree | fa3fdc74436987c4832e2941659efa1b6f22d874 /kernel/trace/trace_entries.h | |
| parent | 9648dc15772d77b5431cd5c11675d90eee1a4c2f (diff) | |
| download | linux-fa32e8557b470f5ff90babc6cbacc61535a81a0f.tar.xz | |
tracing: Add new trace_marker_raw
A new file is created:
/sys/kernel/debug/tracing/trace_marker_raw
This allows for appications to create data structures and write the binary
data directly into it, and then read the trace data out from trace_pipe_raw
into the same type of data structure. This saves on converting numbers into
ASCII that would be required by trace_marker.
Suggested-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_entries.h')
| -rw-r--r-- | kernel/trace/trace_entries.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h index d1cc37e78f99..eb7396b7e7c3 100644 --- a/kernel/trace/trace_entries.h +++ b/kernel/trace/trace_entries.h @@ -244,6 +244,21 @@ FTRACE_ENTRY(print, print_entry, FILTER_OTHER ); +FTRACE_ENTRY(raw_data, raw_data_entry, + + TRACE_RAW_DATA, + + F_STRUCT( + __field( unsigned int, id ) + __dynamic_array( char, buf ) + ), + + F_printk("id:%04x %08x", + __entry->id, (int)__entry->buf[0]), + + FILTER_OTHER +); + FTRACE_ENTRY(bputs, bputs_entry, TRACE_BPUTS, |