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tools lib traceevent: Add more debugging to see various internal ring buffer entries

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When trace-cmd report --debug is set, show the internal ring buffer
entries like time-extends and padding. This requires adding new kbuffer
API to retrieve these items.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Link: http://lkml.kernel.org/r/20190401164343.257591565@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Steven Rostedt (Red Hat) 2019-04-01 12:43:09 -04:00 • committed by Arnaldo Carvalho de Melo
parent 6699ed712a
commit 70df6a7311
2 changed files with 62 additions and 0 deletions
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13
tools/lib/traceevent/kbuffer.h
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@ -65,4 +65,17 @@ int kbuffer_subbuffer_size(struct kbuffer *kbuf);
void kbuffer_set_old_format(struct kbuffer *kbuf);
int kbuffer_start_of_data(struct kbuffer *kbuf);
/* Debugging */
struct kbuffer_raw_info {
int type;
int length;
unsigned long long delta;
void *next;
};
/* Read raw data */
struct kbuffer_raw_info *kbuffer_raw_get(struct kbuffer *kbuf, void *subbuf,
struct kbuffer_raw_info *info);
#endif /* _K_BUFFER_H */