Cleanup: Remove deprecated TODO file

[lttng-modules.git] / instrumentation / events / lttng-module / preemptirq.h

diff --git a/instrumentation/events/lttng-module/preemptirq.h b/instrumentation/events/lttng-module/preemptirq.h
index ec4570c19562110115249350a08a7e71ee4e8ac6..36aa36cb73c6b26b1c178e9387d84361a326615f 100644 (file)
--- a/instrumentation/events/lttng-module/preemptirq.h
+++ b/instrumentation/events/lttng-module/preemptirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifdef CONFIG_PREEMPTIRQ_EVENTS
 
 #undef TRACE_SYSTEM
@@ -9,8 +10,11 @@
 #include <linux/ktime.h>
 #include <linux/string.h>
 #include <asm/sections.h>
-#include <probes/lttng-tracepoint-event.h>
+#include <lttng/tracepoint-event.h>
 
+/*
+ * The preemptirq probe is built when CONFIG_PREEMPTIRQ_EVENTS is defined.
+ */
 
 LTTNG_TRACEPOINT_EVENT_CLASS(preemptirq_template,
 
@@ -24,7 +28,19 @@ LTTNG_TRACEPOINT_EVENT_CLASS(preemptirq_template,
        )
 )
 
-#ifndef CONFIG_PROVE_LOCKING
+/*
+ * Tracing of irq enable / disable events is enabled
+ *   on >= 4.19 when CONFIG_TRACE_IRQFLAGS is defined.
+ *   on previous kernels when CONFIG_PROVE_LOCKING is NOT defined.
+ */
+#if defined(CONFIG_TRACE_IRQFLAGS)
+#define LTTNG_TRACE_IRQ
+#elif (LINUX_VERSION_CODE < KERNEL_VERSION(4,19,0) && \
+       !defined(CONFIG_PROVE_LOCKING))
+#define LTTNG_TRACE_IRQ
+#endif
+
+#ifdef LTTNG_TRACE_IRQ
 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(preemptirq_template, irq_disable,
 
        preemptirq_irq_disable,
@@ -42,9 +58,21 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(preemptirq_template, irq_enable,
 
        TP_ARGS(ip, parent_ip)
 )
-#endif /* !CONFIG_PROVE_LOCKING */
-
-#ifdef CONFIG_DEBUG_PREEMPT
+#endif /* LTTNG_TRACE_IRQ */
+
+/*
+ * Tracing of preempt enable / disable events is enabled
+ *   on >= 4.19 when CONFIG_TRACE_PREEMPT_TOGGLE is defined.
+ *   on previous kernels when CONFIG_DEBUG_PREEMPT is defined.
+ */
+#if defined(CONFIG_TRACE_PREEMPT_TOGGLE)
+#define LTTNG_TRACE_PREEMPT
+#elif (LINUX_VERSION_CODE < KERNEL_VERSION(4,19,0) && \
+       defined(CONFIG_DEBUG_PREEMPT))
+#define LTTNG_TRACE_PREEMPT
+#endif
+
+#ifdef LTTNG_TRACE_PREEMPT
 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(preemptirq_template, preempt_disable,
 
        preemptirq_preempt_disable,
@@ -62,11 +90,11 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(preemptirq_template, preempt_enable,
 
        TP_ARGS(ip, parent_ip)
 )
-#endif /* CONFIG_DEBUG_PREEMPT */
+#endif /* LTTNG_TRACE_PREEMPT */
 
 #endif /* LTTNG_TRACE_PREEMPTIRQ_H */
 
 /* This part must be outside protection */
-#include <probes/define_trace.h>
+#include <lttng/define_trace.h>
 
 #endif /* CONFIG_PREEMPTIRQ_EVENTS */