diff options
| author | Ravi Bangoria <ravi.bangoria@linux.ibm.com> | 2019-11-14 18:52:13 +0530 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-12-04 12:34:02 -0300 |
| commit | bb30acae4c4dacfa2622387c5ad5563246810583 (patch) | |
| tree | 33724a475153c51d0c83951a756738975956b21e /tools/perf | |
| parent | aa6b3c99236b49a3e842d7272efa2529f15f7d8a (diff) | |
| download | linux-bb30acae4c4dacfa2622387c5ad5563246810583.tar.bz2 | |
perf report: Bail out --mem-mode if mem info is not available
If perf.data is recorded without -d, don't allow user to use --mem-mode
with 'perf report'. symbol_daddr and phys_daddr can be recorded
separately and may be present in the perf.data but at the report time
they are associated with mem-mode fields and thus this restriction
applies to them as well.
Before:
$ perf record ls
$ perf report --mem-mode --stdio
# Overhead Local Weight Memory access Symbol
# ........ ............ ............. .......................
55.56% 0 N/A [k] 0xffffffff81a00ae7
After:
$ perf report --mem-mode --stdio
Error:
Selected --mem-mode but no mem data. Did you call perf record without -d?
Suggested-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20191114132213.5419-4-ravi.bangoria@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-report.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 830d563de889..387311c67264 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -388,6 +388,14 @@ static int report__setup_sample_type(struct report *rep) } } + if (sort__mode == SORT_MODE__MEMORY) { + if (!is_pipe && !(sample_type & PERF_SAMPLE_DATA_SRC)) { + ui__error("Selected --mem-mode but no mem data. " + "Did you call perf record without -d?\n"); + return -1; + } + } + if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) { if ((sample_type & PERF_SAMPLE_REGS_USER) && (sample_type & PERF_SAMPLE_STACK_USER)) { |