diff options
| author | Jiri Olsa <jolsa@redhat.com> | 2013-12-03 14:09:35 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-12-04 15:35:27 -0300 |
| commit | 943714737374635a134dc3de59a7f062cea53fb3 (patch) | |
| tree | 759659dc85e0d66e5dd78ac54c69642b6be6c6d7 /tools/lib | |
| parent | 04010929fa33ad3a446b9fd50b82321c1c3cf239 (diff) | |
tools lib traceevent: Add cfg80211 plugin
Adding cfg80211 plugin.
This plugin adds handler for __le16_to_cpup function
t properly parse following tracepoint events:
cfg80211:cfg80211_tx_mlme_mgmt
cfg80211:cfg80211_rx_mlme_mgmt
cfg80211:cfg80211_rx_unprot_mlme_mgmt
The diff of 'perf script' output generated by old and new code:
(data was generated by 'perf record -e 'cfg80211:*' -a')
--- script.cfg80211.old
+++ script.cfg80211.new
- ifconfig 2705 [003] 662.896560: cfg80211:cfg80211_tx_mlme_mgmt: [FAILED TO PARSE] name=wlan0 ifindex=3 frame=ARRAY[c0, 00, 00, 00, 00, 3a, 98, a0, 30, 51, 10, 0b, a9, c6, f4, 74, 00, 3a, 98, a0, 30, 51, 00, 00, 03, 00]
+ ifconfig 2705 [003] 662.896560: cfg80211:cfg80211_tx_mlme_mgmt: netdev:wlan0(3), ftype:0xc0
- kworker/u16:0 1697 [002] 664.808210: cfg80211:cfg80211_rx_mlme_mgmt: [FAILED TO PARSE] name=wlan0 ifindex=3 frame=ARRAY[b0, 00, da, 00, 10, 0b, a9, c6, f4, 74, d8, 24, bd, a1, 26, 31, d8, 24, bd, a1, 26, 31, 10, b7, 00, 00, 02, 00, 00, 00]
+ kworker/u16:0 1697 [002] 664.808210: cfg80211:cfg80211_rx_mlme_mgmt: netdev:wlan0(3), ftype:0xb0
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386076182-14484-22-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/traceevent/Makefile | 1 | ||||
| -rw-r--r-- | tools/lib/traceevent/plugin_cfg80211.c | 24 |
2 files changed, 25 insertions, 0 deletions
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile index 671f969922bc..0d9cbb426b44 100644 --- a/tools/lib/traceevent/Makefile +++ b/tools/lib/traceevent/Makefile @@ -221,6 +221,7 @@ PLUGIN_OBJS += plugin_sched_switch.o PLUGIN_OBJS += plugin_function.o PLUGIN_OBJS += plugin_xen.o PLUGIN_OBJS += plugin_scsi.o +PLUGIN_OBJS += plugin_cfg80211.o PLUGINS := $(PLUGIN_OBJS:.o=.so) diff --git a/tools/lib/traceevent/plugin_cfg80211.c b/tools/lib/traceevent/plugin_cfg80211.c new file mode 100644 index 000000000000..dcab8e873c21 --- /dev/null +++ b/tools/lib/traceevent/plugin_cfg80211.c @@ -0,0 +1,24 @@ +#include <stdio.h> +#include <string.h> +#include <inttypes.h> +#include <endian.h> +#include "event-parse.h" + +static unsigned long long +process___le16_to_cpup(struct trace_seq *s, + unsigned long long *args) +{ + uint16_t *val = (uint16_t *) args[0]; + return val ? (long long) le16toh(*val) : 0; +} + +int PEVENT_PLUGIN_LOADER(struct pevent *pevent) +{ + pevent_register_print_function(pevent, + process___le16_to_cpup, + PEVENT_FUNC_ARG_INT, + "__le16_to_cpup", + PEVENT_FUNC_ARG_PTR, + PEVENT_FUNC_ARG_VOID); + return 0; +} |