mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-18 23:18:20 +00:00
a8d154b009
This patch lowers the number of places a developer must modify to add new tracepoints. The current method to add a new tracepoint into an existing system is to write the trace point macro in the trace header with one of the macros TRACE_EVENT, TRACE_FORMAT or DECLARE_TRACE, then they must add the same named item into the C file with the macro DEFINE_TRACE(name) and then add the trace point. This change cuts out the needing to add the DEFINE_TRACE(name). Every file that uses the tracepoint must still include the trace/<type>.h file, but the one C file must also add a define before the including of that file. #define CREATE_TRACE_POINTS #include <trace/mytrace.h> This will cause the trace/mytrace.h file to also produce the C code necessary to implement the trace point. Note, if more than one trace/<type>.h is used to create the C code it is best to list them all together. #define CREATE_TRACE_POINTS #include <trace/foo.h> #include <trace/bar.h> #include <trace/fido.h> Thanks to Mathieu Desnoyers and Christoph Hellwig for coming up with the cleaner solution of the define above the includes over my first design to have the C code include a "special" header. This patch converts sched, irq and lockdep and skb to use this new method. Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Neil Horman <nhorman@tuxdriver.com> Cc: Zhao Lei <zhaolei@cn.fujitsu.com> Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
#if !defined(_TRACE_IRQ_H) || defined(TRACE_HEADER_MULTI_READ)
|
|
#define _TRACE_IRQ_H
|
|
|
|
#include <linux/tracepoint.h>
|
|
#include <linux/interrupt.h>
|
|
|
|
#undef TRACE_SYSTEM
|
|
#define TRACE_SYSTEM irq
|
|
|
|
/*
|
|
* Tracepoint for entry of interrupt handler:
|
|
*/
|
|
TRACE_FORMAT(irq_handler_entry,
|
|
TP_PROTO(int irq, struct irqaction *action),
|
|
TP_ARGS(irq, action),
|
|
TP_FMT("irq=%d handler=%s", irq, action->name)
|
|
);
|
|
|
|
/*
|
|
* Tracepoint for return of an interrupt handler:
|
|
*/
|
|
TRACE_EVENT(irq_handler_exit,
|
|
|
|
TP_PROTO(int irq, struct irqaction *action, int ret),
|
|
|
|
TP_ARGS(irq, action, ret),
|
|
|
|
TP_STRUCT__entry(
|
|
__field( int, irq )
|
|
__field( int, ret )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->irq = irq;
|
|
__entry->ret = ret;
|
|
),
|
|
|
|
TP_printk("irq=%d return=%s",
|
|
__entry->irq, __entry->ret ? "handled" : "unhandled")
|
|
);
|
|
|
|
TRACE_FORMAT(softirq_entry,
|
|
TP_PROTO(struct softirq_action *h, struct softirq_action *vec),
|
|
TP_ARGS(h, vec),
|
|
TP_FMT("softirq=%d action=%s", (int)(h - vec), softirq_to_name[h-vec])
|
|
);
|
|
|
|
TRACE_FORMAT(softirq_exit,
|
|
TP_PROTO(struct softirq_action *h, struct softirq_action *vec),
|
|
TP_ARGS(h, vec),
|
|
TP_FMT("softirq=%d action=%s", (int)(h - vec), softirq_to_name[h-vec])
|
|
);
|
|
|
|
#endif /* _TRACE_IRQ_H */
|
|
|
|
/* This part must be outside protection */
|
|
#include <trace/define_trace.h>
|