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authorAdrian Hunter <adrian.hunter@intel.com>2017-05-26 11:17:22 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-06-27 18:19:10 +0300
commit47e780848e6229b102e601deeb1ce571dc69a84a (patch)
tree7e89b9e857b04e1ec0adc32e3dea99a319946769 /tools/perf
parent70d110d775993ff1f63905bbdbc70e3f6bd8da8a (diff)
downloadlinux-47e780848e6229b102e601deeb1ce571dc69a84a.tar.xz
perf script: Add 'synth' field for synthesized event payloads
Add a field to display the content the raw_data of a synthesized event. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1495786658-18063-22-git-send-email-adrian.hunter@intel.com [ Resolved conflict with 106dacd86f04 ("perf script: Support -F brstackoff,dso") ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/Documentation/perf-script.txt6
-rw-r--r--tools/perf/builtin-script.c20
2 files changed, 23 insertions, 3 deletions
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index e2468ed6a307..5ee8796be96e 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -117,7 +117,8 @@ OPTIONS
Comma separated list of fields to print. Options are:
comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff,
srcline, period, iregs, brstack, brstacksym, flags, bpf-output, brstackinsn, brstackoff,
- callindent, insn, insnlen. Field list can be prepended with the type, trace, sw or hw,
+ callindent, insn, insnlen, synth.
+ Field list can be prepended with the type, trace, sw or hw,
to indicate to which event type the field list applies.
e.g., -F sw:comm,tid,time,ip,sym and -F trace:time,cpu,trace
@@ -193,6 +194,9 @@ OPTIONS
instruction bytes and the instruction length of the current
instruction.
+ The synth field is used by synthesized events which may be created when
+ Instruction Trace decoding.
+
Finally, a user may not set fields to none for all event types.
i.e., -F "" is not allowed.
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 2999e7e425f6..e87b480bbdd0 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -86,6 +86,7 @@ enum perf_output_field {
PERF_OUTPUT_INSNLEN = 1U << 22,
PERF_OUTPUT_BRSTACKINSN = 1U << 23,
PERF_OUTPUT_BRSTACKOFF = 1U << 24,
+ PERF_OUTPUT_SYNTH = 1U << 25,
};
struct output_option {
@@ -117,6 +118,7 @@ struct output_option {
{.str = "insnlen", .field = PERF_OUTPUT_INSNLEN},
{.str = "brstackinsn", .field = PERF_OUTPUT_BRSTACKINSN},
{.str = "brstackoff", .field = PERF_OUTPUT_BRSTACKOFF},
+ {.str = "synth", .field = PERF_OUTPUT_SYNTH},
};
enum {
@@ -196,7 +198,8 @@ static struct {
.fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
- PERF_OUTPUT_SYM | PERF_OUTPUT_DSO,
+ PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
+ PERF_OUTPUT_SYNTH,
.invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
},
@@ -1200,6 +1203,15 @@ static void print_sample_bpf_output(struct perf_sample *sample)
(char *)(sample->raw_data));
}
+static void print_sample_synth(struct perf_sample *sample __maybe_unused,
+ struct perf_evsel *evsel)
+{
+ switch (evsel->attr.config) {
+ default:
+ break;
+ }
+}
+
struct perf_script {
struct perf_tool tool;
struct perf_session *session;
@@ -1284,6 +1296,10 @@ static void process_event(struct perf_script *script,
if (PRINT_FIELD(TRACE))
event_format__print(evsel->tp_format, sample->cpu,
sample->raw_data, sample->raw_size);
+
+ if (attr->type == PERF_TYPE_SYNTH && PRINT_FIELD(SYNTH))
+ print_sample_synth(sample, evsel);
+
if (PRINT_FIELD(ADDR))
print_sample_addr(sample, thread, attr);
@@ -2605,7 +2621,7 @@ int cmd_script(int argc, const char **argv)
"Valid types: hw,sw,trace,raw,synth. "
"Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
"addr,symoff,period,iregs,brstack,brstacksym,flags,"
- "bpf-output,callindent,insn,insnlen,brstackinsn",
+ "bpf-output,callindent,insn,insnlen,brstackinsn,synth",
parse_output_fields),
OPT_BOOLEAN('a', "all-cpus", &system_wide,
"system-wide collection from all CPUs"),