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/* SPDX-License-Identifier: GPL-2.0 */
#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 <probes/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 <probes/define_trace.h>
#endif /* CONFIG_PREEMPTIRQ_EVENTS */
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