Commit-ID: 943714737374635a134dc3de59a7f062cea53fb3 Gitweb: http://git.kernel.org/tip/943714737374635a134dc3de59a7f062cea53fb3 Author: Jiri Olsa <[email protected]> AuthorDate: Tue, 3 Dec 2013 14:09:35 +0100 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Wed, 4 Dec 2013 15:35:27 -0300
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 <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/lib/traceevent/Makefile | 1 + tools/lib/traceevent/plugin_cfg80211.c | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile index 671f969..0d9cbb4 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 0000000..dcab8e8 --- /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; +} -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
