diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index d19058a7b84cfbd45547c8e2f004c82d7462580d..8a3dfac161e298bbab7f0912fd7429a52fbb1dd6 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -754,6 +754,9 @@ static struct perf_record record = { .user_freq = UINT_MAX, .user_interval = ULLONG_MAX, .freq = 1000, + .target = { + .uses_mmap = true, + }, }, .write_mode = WRITE_FORCE, .file_new = true, diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c index 9d9abbbe23be4ab932bd88028bbee3d1ceef8a43..4eaa665fd32b9739c2aec448417dc8176fb56495 100644 --- a/tools/perf/builtin-test.c +++ b/tools/perf/builtin-test.c @@ -1167,6 +1167,7 @@ static int test__PERF_RECORD(void) struct perf_record_opts opts = { .target = { .uid = UINT_MAX, + .uses_mmap = true, }, .no_delay = true, .freq = 10, diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 553560a8b1beee45c4c645ab7936393a46ae93f3..3e981a710c4d2f9323317d34ae128e2f29a6c826 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1162,6 +1162,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) .freq = 1000, /* 1 KHz */ .mmap_pages = 128, .sym_pcnt_filter = 5, + .target = { + .uses_mmap = true, + }, }; char callchain_default_opt[] = "fractal,0.5,callee"; const struct option options[] = { diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 87889f325678723cf409fb05b852bc6e12d9739d..4ac5f5ae4ce903a9284d6b4f105493da2bc454c5 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -611,6 +611,8 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, if (perf_target__has_task(target)) evlist->cpus = cpu_map__dummy_new(); + else if (!perf_target__has_cpu(target) && !target->uses_mmap) + evlist->cpus = cpu_map__dummy_new(); else evlist->cpus = cpu_map__new(target->cpu_list); diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h index c43f632955fa22c28ae546401b2183222518f252..a4be8575fda56ea77b3b9fad73f6aab9a2995ac2 100644 --- a/tools/perf/util/target.h +++ b/tools/perf/util/target.h @@ -11,6 +11,7 @@ struct perf_target { const char *uid_str; uid_t uid; bool system_wide; + bool uses_mmap; }; enum perf_target_errno {