The "auxtrace_info" and "auxtrace" functions are not set in "tool" member of
"annotate". As a result, perf annotate does not support parsing itrace data.
A simple example is as follows:
# perf record -e arm_spe_0/branch_filter=1/ -a sleep 1
[ perf record: Woken up 9 times to write data ]
[ perf record: Captured and wrote 20.874 MB perf.data ]
# perf annotate --stdio
Error:
The perf.data data has no samples!
Solution:
1.Add itrace options in help,
2.Set hook functions of "auxtrace_info" and "auxtrace" in perf_tool.
Signed-off-by: Yang Jihong <[email protected]>
---
tools/perf/builtin-annotate.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 49627a7bed7c..84ef52177d63 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -474,6 +474,8 @@ int cmd_annotate(int argc, const char **argv)
.attr = perf_event__process_attr,
.build_id = perf_event__process_build_id,
.tracing_data = perf_event__process_tracing_data,
+ .auxtrace_info = perf_event__process_auxtrace_info,
+ .auxtrace = perf_event__process_auxtrace,
.feature = process_feature_event,
.ordered_events = true,
.ordering_requires_timestamps = true,
@@ -483,6 +485,9 @@ int cmd_annotate(int argc, const char **argv)
struct perf_data data = {
.mode = PERF_DATA_MODE_READ,
};
+ struct itrace_synth_opts itrace_synth_opts = {
+ .set = 0,
+ };
struct option options[] = {
OPT_STRING('i', "input", &input_name, "file",
"input file name"),
@@ -547,6 +552,9 @@ int cmd_annotate(int argc, const char **argv)
OPT_CALLBACK(0, "percent-type", &annotate.opts, "local-period",
"Set percent type local/global-period/hits",
annotate_parse_percent_type),
+ OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
+ "Instruction Tracing options\n" ITRACE_HELP,
+ itrace_parse_synth_opts),
OPT_END()
};
@@ -591,6 +599,8 @@ int cmd_annotate(int argc, const char **argv)
if (IS_ERR(annotate.session))
return PTR_ERR(annotate.session);
+ annotate.session->itrace_synth_opts = &itrace_synth_opts;
+
annotate.has_br_stack = perf_header__has_feat(&annotate.session->header,
HEADER_BRANCH_STACK);
--
2.30.GIT
Hello,
ping :)
Please take time to review this patch.
Thanks,
Yang
On 2021/5/27 9:55, Yang Jihong wrote:
> The "auxtrace_info" and "auxtrace" functions are not set in "tool" member of
> "annotate". As a result, perf annotate does not support parsing itrace data.
>
> A simple example is as follows:
>
> # perf record -e arm_spe_0/branch_filter=1/ -a sleep 1
> [ perf record: Woken up 9 times to write data ]
> [ perf record: Captured and wrote 20.874 MB perf.data ]
> # perf annotate --stdio
> Error:
> The perf.data data has no samples!
>
> Solution:
> 1.Add itrace options in help,
> 2.Set hook functions of "auxtrace_info" and "auxtrace" in perf_tool.
>
> Signed-off-by: Yang Jihong <[email protected]>
> ---
> tools/perf/builtin-annotate.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
> index 49627a7bed7c..84ef52177d63 100644
> --- a/tools/perf/builtin-annotate.c
> +++ b/tools/perf/builtin-annotate.c
> @@ -474,6 +474,8 @@ int cmd_annotate(int argc, const char **argv)
> .attr = perf_event__process_attr,
> .build_id = perf_event__process_build_id,
> .tracing_data = perf_event__process_tracing_data,
> + .auxtrace_info = perf_event__process_auxtrace_info,
> + .auxtrace = perf_event__process_auxtrace,
> .feature = process_feature_event,
> .ordered_events = true,
> .ordering_requires_timestamps = true,
> @@ -483,6 +485,9 @@ int cmd_annotate(int argc, const char **argv)
> struct perf_data data = {
> .mode = PERF_DATA_MODE_READ,
> };
> + struct itrace_synth_opts itrace_synth_opts = {
> + .set = 0,
> + };
> struct option options[] = {
> OPT_STRING('i', "input", &input_name, "file",
> "input file name"),
> @@ -547,6 +552,9 @@ int cmd_annotate(int argc, const char **argv)
> OPT_CALLBACK(0, "percent-type", &annotate.opts, "local-period",
> "Set percent type local/global-period/hits",
> annotate_parse_percent_type),
> + OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
> + "Instruction Tracing options\n" ITRACE_HELP,
> + itrace_parse_synth_opts),
>
> OPT_END()
> };
> @@ -591,6 +599,8 @@ int cmd_annotate(int argc, const char **argv)
> if (IS_ERR(annotate.session))
> return PTR_ERR(annotate.session);
>
> + annotate.session->itrace_synth_opts = &itrace_synth_opts;
> +
> annotate.has_br_stack = perf_header__has_feat(&annotate.session->header,
> HEADER_BRANCH_STACK);
>
>