Messages in this thread | | | Date | Tue, 30 Mar 2021 12:42:44 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH] perf annotate: add --demangle and --demangle-kernel |
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Em Tue, Mar 30, 2021 at 09:41:33AM +0200, Martin Liška escreveu: > PING^2 > > On 3/7/21 8:23 PM, Martin Liška wrote: > > Hello. > > > > May I please remind this patch. Apparently, you applied the perf-config > > counterpart of the patch as 804fd30c6bd9aec7859a0503581312834fb197f1 > > (in tmp.perf/core branch), but we miss setting the same via options. > > > > Thank you, > > Martin > > > > On 2/26/21 11:01 AM, Martin Liška wrote: > > > On 2/23/21 8:49 PM, Arnaldo Carvalho de Melo wrote: > > > > Em Mon, Feb 22, 2021 at 09:29:22AM +0100, Martin Liška escreveu: > > > > > 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> > > > > > --- > > > > > 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 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 a23ba6bb99b6..ef70a17b9b5b 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, > > > > > + "Disable symbol demangling"), > > > > > > > > Nope, this _enables_ demangling, i.e.: > > > > > > > > perf annotate --demangle > > > > > > Oh, yeah, you are right. > > > > > > > > > > > Asks for symbol demangling, while: > > > > > > > > perf annotate --no-demangle > > > > > > > > As you correctly wrote in your commit message and on the > > > > --demangle-kernel case, enables demangling. > > > > > > Fixed that in V2.
Trying to find V2
- Arnaldo
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