Cleanup: Move lttng-modules instrumentation headers

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

diff --git a/include/instrumentation/events/preemptirq.h b/include/instrumentation/events/preemptirq.h
new file mode 100644 (file)
index 0000000..36aa36c
--- /dev/null
+++ b/include/instrumentation/events/preemptirq.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifdef CONFIG_PREEMPTIRQ_EVENTS
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM preemptirq
+
+#if !defined(LTTNG_TRACE_PREEMPTIRQ_H) || defined(TRACE_HEADER_MULTI_READ)
+#define LTTNG_TRACE_PREEMPTIRQ_H
+
+#include <linux/ktime.h>
+#include <linux/string.h>
+#include <asm/sections.h>
+#include <lttng/tracepoint-event.h>
+
+/*
+ * The preemptirq probe is built when CONFIG_PREEMPTIRQ_EVENTS is defined.
+ */
+
+LTTNG_TRACEPOINT_EVENT_CLASS(preemptirq_template,
+
+       TP_PROTO(unsigned long ip, unsigned long parent_ip),
+
+       TP_ARGS(ip, parent_ip),
+
+       TP_FIELDS(
+               ctf_integer_hex(unsigned long, caller, ip)
+               ctf_integer_hex(unsigned long, parent, parent_ip)
+       )
+)
+
+/*
+ * 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,
+
+       TP_PROTO(unsigned long ip, unsigned long parent_ip),
+
+       TP_ARGS(ip, parent_ip)
+)
+
+LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(preemptirq_template, irq_enable,
+
+       preemptirq_irq_enable,
+
+       TP_PROTO(unsigned long ip, unsigned long parent_ip),
+
+       TP_ARGS(ip, parent_ip)
+)
+#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,
+
+       TP_PROTO(unsigned long ip, unsigned long parent_ip),
+
+       TP_ARGS(ip, parent_ip)
+)
+
+LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(preemptirq_template, preempt_enable,
+
+       preemptirq_preempt_enable,
+
+       TP_PROTO(unsigned long ip, unsigned long parent_ip),
+
+       TP_ARGS(ip, parent_ip)
+)
+#endif /* LTTNG_TRACE_PREEMPT */
+
+#endif /* LTTNG_TRACE_PREEMPTIRQ_H */
+
+/* This part must be outside protection */
+#include <lttng/define_trace.h>
+
+#endif /* CONFIG_PREEMPTIRQ_EVENTS */