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| author | Martin Liška <mliska@suse.cz> | 2021-03-30 21:33:55 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-03-31 16:39:48 +0300 |
| commit | 3406ac5347dbf64ab9f7b137ed25a18493f5ea2d (patch) | |
| tree | a216f275f5120da2d15fbc137f701ba7f1249d5c /tools/perf | |
| parent | 292c5ed168597df85f53cb03ec3e831b18969b62 (diff) | |
| download | linux-3406ac5347dbf64ab9f7b137ed25a18493f5ea2d.tar.xz | |
perf annotate: Add --demangle and --demangle-kernel
'perf annotate' supports --symbol but it's impossible to filter a C++
symbol. With --no-demangle one can filter easily by mangled function
name.
Signed-off-by: Martin Liška <mliska@suse.cz>
Link: http://lore.kernel.org/lkml/c3c7e959-9f7f-18e2-e795-f604275cbac3@suse.cz
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/Documentation/perf-annotate.txt | 7 | ||||
| -rw-r--r-- | tools/perf/builtin-annotate.c | 4 |
2 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt index 1b5042f134a8..80c1be5d566c 100644 --- a/tools/perf/Documentation/perf-annotate.txt +++ b/tools/perf/Documentation/perf-annotate.txt @@ -124,6 +124,13 @@ OPTIONS --group:: Show event group information together +--demangle:: + Demangle symbol names to human readable form. It's enabled by default, + disable with --no-demangle. + +--demangle-kernel:: + Demangle kernel symbol names to human readable form (for C++ kernels). + --percent-type:: Set annotation percent type from following choices: global-period, local-period, global-hits, local-hits diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 0f3a196e5d6e..021d974c978e 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -538,6 +538,10 @@ int cmd_annotate(int argc, const char **argv) "Strip first N entries of source file path name in programs (with --prefix)"), OPT_STRING(0, "objdump", &annotate.opts.objdump_path, "path", "objdump binary to use for disassembly and annotations"), + OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, + "Enable symbol demangling"), + OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, + "Enable kernel symbol demangling"), OPT_BOOLEAN(0, "group", &symbol_conf.event_group, "Show event group information together"), OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |