leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

libtraceevent: Add __rel_loc relative location attribute support

Browse Source 
Add '__rel_loc' new dynamic data location attribute which encodes
the data location from the next to the field itself. This is similar
to the '__data_loc' but the location offset is not from the event
entry but from the next of the field.

This patch adds '__rel_loc' decoding support in the libtraceevent.

Link: https://lkml.kernel.org/r/163757343994.510314.13241077597729303802.stgit@devnote2

Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Masami Hiramatsu
2021-11-22 18:30:40 +09:00
committed by Steven Rostedt (VMware)
parent b466b13321
commit cd7729043b
3 changed files with 47 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
tools/lib/traceevent/event-parse.h
View File

@@ -125,6 +125,7 @@ enum tep_format_flags {
TEP_FIELD_IS_LONG = 32,
TEP_FIELD_IS_FLAG = 64,
TEP_FIELD_IS_SYMBOLIC = 128,
TEP_FIELD_IS_RELATIVE = 256,
};
struct tep_format_field {
@@ -153,12 +154,12 @@ struct tep_print_arg_atom {
struct tep_print_arg_string {
char *string;
int offset;
struct tep_format_field *field;
};
struct tep_print_arg_bitmask {
char *bitmask;
int offset;
struct tep_format_field *field;
};
struct tep_print_arg_field {