From 3406ac5347dbf64ab9f7b137ed25a18493f5ea2d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Martin=20Li=C5=A1ka?= <mliska@suse.cz> Date: Tue, 30 Mar 2021 20:33:55 +0200 Subject: [PATCH] perf annotate: Add --demangle and --demangle-kernel MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit '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> --- tools/perf/Documentation/perf-annotate.txt | 7 +++++++ tools/perf/builtin-annotate.c | 4 ++++ 2 files changed, 11 insertions(+) diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt index 1b5042f134a867..80c1be5d566cb8 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 0f3a196e5d6e5d..021d974c978e5f 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, -- GitLab