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perf tools: Add a user event for AUX area tracing errors

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Errors encountered when decoding an AUX area trace need to be reported
to the user. However the "user" might be a script or another tool, so
provide a new user event to capture those errors.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1428594864-29309-8-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2015-04-09 18:53:47 +03:00 • committed by Arnaldo Carvalho de Melo
parent e9db1310d9
commit e9bf54d25f
4 changed files with 44 additions and 1 deletions
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16
tools/perf/util/event.h
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@ -217,6 +217,7 @@ enum perf_user_event_type { /* above any possible kernel type */
PERF_RECORD_ID_INDEX = 69,
PERF_RECORD_AUXTRACE_INFO = 70,
PERF_RECORD_AUXTRACE = 71,
PERF_RECORD_AUXTRACE_ERROR = 72,
PERF_RECORD_HEADER_MAX
};
@ -300,6 +301,20 @@ struct auxtrace_event {
u32 reserved__; /* For alignment */
};
#define MAX_AUXTRACE_ERROR_MSG 64
struct auxtrace_error_event {
struct perf_event_header header;
u32 type;
u32 code;
u32 cpu;
u32 pid;
u32 tid;
u32 reserved__; /* For alignment */
u64 ip;
char msg[MAX_AUXTRACE_ERROR_MSG];
};
union perf_event {
struct perf_event_header header;
struct mmap_event mmap;
@ -317,6 +332,7 @@ union perf_event {
struct id_index_event id_index;
struct auxtrace_info_event auxtrace_info;
struct auxtrace_event auxtrace;
struct auxtrace_error_event auxtrace_error;
};
void perf_event__print_totals(void);