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authorAvi Kivity <avi@cloudius-systems.com>2014-09-13 07:15:05 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-09-17 17:08:09 -0300
commit763122ade725592402190f5ff3b8d2edf42b87e8 (patch)
tree1ce5493cc830c0cd23c221665e7c143e668e43ac /tools/perf/builtin-report.c
parent29a3ce31c38c8f73f4e076b7ffc0876b4f5dd6c3 (diff)
downloadblackbird-op-linux-763122ade725592402190f5ff3b8d2edf42b87e8.tar.gz
blackbird-op-linux-763122ade725592402190f5ff3b8d2edf42b87e8.zip
perf tools: Disable kernel symbol demangling by default
Some Linux symbols (for example __vt_event_wait) are interpreted by the demangler as C++ mangled names, which of course they aren't. Disable kernel symbol demangling by default to avoid this, and allow enabling it with a new option --demangle-kernel for those who wish it. Reported-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Avi Kivity <avi@cloudius-systems.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1410581705-26968-1-git-send-email-avi@cloudius-systems.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-report.c')
-rw-r--r--tools/perf/builtin-report.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 3da59a87ec7c..8c0b3f22412a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -680,6 +680,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
"objdump binary to use for disassembly and annotations"),
OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
"Disable symbol demangling"),
+ OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
+ "Enable kernel symbol demangling"),
OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
OPT_CALLBACK(0, "percent-limit", &report, "percent",
"Don't show entries under that percent", parse_percent_limit),
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