Adds the instrumentation to the previously created wip monitor, as an
example of the developer work. It also adds a Makefile and Kconfig
entries.
This is a good example of the manual work that is left for the
developer to do.
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
Cc: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Cc: Gabriele Paoloni <gpaoloni@xxxxxxxxxx>
Cc: Juri Lelli <juri.lelli@xxxxxxxxxx>
Cc: Clark Williams <williams@xxxxxxxxxx>
Cc: linux-doc@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-trace-devel@xxxxxxxxxxxxxxx
Signed-off-by: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>
---
kernel/trace/rv/Kconfig | 7 +++++++
kernel/trace/rv/Makefile | 1 +
kernel/trace/rv/monitor_wip/wip.c | 16 ++++++++--------
kernel/trace/rv/monitor_wip/wip.h | 2 +-
4 files changed, 17 insertions(+), 9 deletions(-)
diff --git a/kernel/trace/rv/Kconfig b/kernel/trace/rv/Kconfig
index 560408fec0c8..7338e661d78f 100644
--- a/kernel/trace/rv/Kconfig
+++ b/kernel/trace/rv/Kconfig
@@ -13,6 +13,13 @@ menuconfig RV
if RV
+config RV_MON_WIP
+ depends on PREEMPTIRQ_TRACEPOINTS
+ tristate "WIP monitor"
+ help
+ Enable WIP sample monitor, this is a sample monitor that
+ illustrates the usage of per-cpu monitors.
+
config RV_REACTORS
bool "Runtime verification reactors"
default y if RV
diff --git a/kernel/trace/rv/Makefile b/kernel/trace/rv/Makefile
index 8944274d9b41..20f30741b933 100644
--- a/kernel/trace/rv/Makefile
+++ b/kernel/trace/rv/Makefile
@@ -2,3 +2,4 @@
obj-$(CONFIG_RV) += rv.o
obj-$(CONFIG_RV_REACTORS) += rv_reactors.o
+obj-$(CONFIG_RV_MON_WIP) += monitor_wip/wip.o
diff --git a/kernel/trace/rv/monitor_wip/wip.c b/kernel/trace/rv/monitor_wip/wip.c
index 1aec75e683d2..dd35a042e727 100644
--- a/kernel/trace/rv/monitor_wip/wip.c
+++ b/kernel/trace/rv/monitor_wip/wip.c
@@ -33,36 +33,36 @@ DECLARE_DA_MON_PER_CPU(wip, char);
*
*/
-void handle_preempt_disable(void *data, /* XXX: fill header */)
+void handle_preempt_disable(void *data, unsigned long ip, unsigned long parent_ip)
{
da_handle_event_wip(preempt_disable);
}
-void handle_preempt_enable(void *data, /* XXX: fill header */)
+void handle_preempt_enable(void *data, unsigned long ip, unsigned long parent_ip)
{
- da_handle_event_wip(preempt_enable);
+ da_handle_init_event_wip(preempt_enable);
}
-void handle_sched_waking(void *data, /* XXX: fill header */)
+void handle_sched_waking(void *data, struct task_struct *task)
{
da_handle_event_wip(sched_waking);
}
-#define NR_TP 3
+#define NR_TP 3
static struct tracepoint_hook_helper tracepoints_to_hook[NR_TP] = {
{
.probe = handle_preempt_disable,
- .name = /* XXX: tracepoint name here */,
+ .name = "preempt_disable",
.registered = 0
},
{
.probe = handle_preempt_enable,
- .name = /* XXX: tracepoint name here */,
+ .name = "preempt_enable",
.registered = 0
},
{
.probe = handle_sched_waking,
- .name = /* XXX: tracepoint name here */,
+ .name = "sched_wakeup",
.registered = 0
},
};
diff --git a/kernel/trace/rv/monitor_wip/wip.h b/kernel/trace/rv/monitor_wip/wip.h
index 7a751a8896e9..1ba58a5781ff 100644
--- a/kernel/trace/rv/monitor_wip/wip.h
+++ b/kernel/trace/rv/monitor_wip/wip.h
@@ -59,6 +59,6 @@ TRACE_EVENT(error_wip,
/* This part ust be outside protection */
#undef TRACE_INCLUDE_PATH
-#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_PATH ../kernel/trace/rv/monitor_wip/
#define TRACE_INCLUDE_FILE wip
#include <trace/define_trace.h>
--
2.33.1
