From a056a5bed7fa67706574b00cf1122c38596b2be1 Mon Sep 17 00:00:00 2001 From: Qais Yousef Date: Tue, 4 Jun 2019 12:14:59 +0100 Subject: [PATCH] sched/debug: Export the newly added tracepoints So that external modules can hook into them and extract the info they need. Since these new tracepoints have no events associated with them exporting these tracepoints make them useful for external modules to perform testing and debugging. There's no other way otherwise to access them. BPF doesn't have infrastructure to access these bare tracepoints either. Signed-off-by: Qais Yousef Signed-off-by: Peter Zijlstra (Intel) Cc: Dietmar Eggemann Cc: Linus Torvalds Cc: Pavankumar Kondeti Cc: Peter Zijlstra Cc: Quentin Perret Cc: Sebastian Andrzej Siewior Cc: Steven Rostedt Cc: Thomas Gleixner Cc: Uwe Kleine-Konig Link: https://lkml.kernel.org/r/20190604111459.2862-7-qais.yousef@arm.com Signed-off-by: Ingo Molnar --- kernel/sched/core.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 83bd6bb..e5e02d2 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -23,6 +23,17 @@ #define CREATE_TRACE_POINTS #include +/* + * Export tracepoints that act as a bare tracehook (ie: have no trace event + * associated with them) to allow external modules to probe them. + */ +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_cfs_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_rt_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_dl_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_irq_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_se_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_overutilized_tp); + DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); #if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_JUMP_LABEL) -- 2.7.4