This is a note to let you know that I've just added the patch titled
perf annotate: Add --demangle and --demangle-kernel
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
perf-annotate-add-demangle-and-demangle-kernel.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ffe555e5e0ce9dbc178c94896fadb680a04d39c6
Author: Martin Liška <mliska@xxxxxxx>
Date: Tue Mar 30 20:33:55 2021 +0200
perf annotate: Add --demangle and --demangle-kernel
[ Upstream commit 3406ac5347dbf64ab9f7b137ed25a18493f5ea2d ]
'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@xxxxxxx>
Link: http://lore.kernel.org/lkml/c3c7e959-9f7f-18e2-e795-f604275cbac3@xxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Stable-dep-of: 374af9f1f06b ("perf annotate: Get rid of duplicate --group option item")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt
index e8c972f89357d..066ecfffbf4ed 100644
--- a/tools/perf/Documentation/perf-annotate.txt
+++ b/tools/perf/Documentation/perf-annotate.txt
@@ -118,6 +118,13 @@ 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 830481b8db26a..d12430fe9c783 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -533,6 +533,10 @@ int cmd_annotate(int argc, const char **argv)
"Specify disassembler style (e.g. -M intel for intel syntax)"),
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,
