From 9aa0bfa370b278a539077002b3c660468d66b5e7 Mon Sep 17 00:00:00 2001 From: Song Liu Date: Thu, 17 Jan 2019 08:15:17 -0800 Subject: perf tools: Handle PERF_RECORD_KSYMBOL This patch handles PERF_RECORD_KSYMBOL in perf record/report. Specifically, map and symbol are created for ksymbol register, and removed for ksymbol unregister. This patch also sets perf_event_attr.ksymbol properly. The flag is ON by default. Committer notes: Use proper inttypes.h for u64, fixing the build in some environments like in the android NDK r15c targetting ARM 32-bit. I.e. fixing this build error: util/event.c: In function 'perf_event__fprintf_ksymbol': util/event.c:1489:10: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'u64' [-Werror=format=] event->ksymbol_event.flags, event->ksymbol_event.name); ^ cc1: all warnings being treated as errors Signed-off-by: Song Liu Reviewed-by: Arnaldo Carvalho de Melo Tested-by: Arnaldo Carvalho de Melo Cc: Alexei Starovoitov Cc: Daniel Borkmann Cc: Peter Zijlstra Cc: kernel-team@fb.com Cc: netdev@vger.kernel.org Link: http://lkml.kernel.org/r/20190117161521.1341602-6-songliubraving@fb.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/tool.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'tools/perf/util/tool.h') diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h index 56e4ca54020a..9c81ca2f3cf7 100644 --- a/tools/perf/util/tool.h +++ b/tools/perf/util/tool.h @@ -53,7 +53,9 @@ struct perf_tool { itrace_start, context_switch, throttle, - unthrottle; + unthrottle, + ksymbol; + event_attr_op attr; event_attr_op event_update; event_op2 tracing_data; -- cgit v1.2.3