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perf script: Add --[no-]-demangle/--[no-]-demangle-kernel

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Sometimes when post-processing output from `perf script` one does not
want to demangle C++ symbol names. Add an option to allow this.

Also add --[no-]demangle-kernel to be consistent with top/report/probe.

Signed-off-by: Mark Drayton <mbd@fb.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1440616695-32340-1-git-send-email-scientist@fb.com
Signed-off-by: Yannick Brosseau <scientist@fb.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Mark Drayton 2015-08-26 12:18:15 -07:00 committed by Arnaldo Carvalho de Melo
parent d1ee8bc195
commit 77e0070da4
2 changed files with 12 additions and 0 deletions
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7
tools/perf/Documentation/perf-script.txt
View File

@ -226,6 +226,13 @@ OPTIONS
Display context switch events i.e. events of type PERF_RECORD_SWITCH or Display context switch events i.e. events of type PERF_RECORD_SWITCH or
PERF_RECORD_SWITCH_CPU_WIDE. PERF_RECORD_SWITCH_CPU_WIDE.
--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).
--header --header
Show perf.data header. Show perf.data header.

5
tools/perf/builtin-script.c
View File

@ -1671,6 +1671,11 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
itrace_parse_synth_opts), itrace_parse_synth_opts),
OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename, OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
"Show full source file name path for source lines"), "Show full source file name path for source lines"),
OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
"Enable symbol demangling"),
OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
"Enable kernel symbol demangling"),
OPT_END() OPT_END()
}; };
const char * const script_subcommands[] = { "record", "report", NULL }; const char * const script_subcommands[] = { "record", "report", NULL };