Commit d136e273 authored by Anton Blanchard's avatar Anton Blanchard Committed by Benjamin Herrenschmidt
Browse files

powerpc: tracing: Avoid tracepoint duplication with DECLARE_EVENT_CLASS 



irq_entry, irq_exit, timer_interrupt_entry and timer_interrupt_exit
all do the same thing so use DECLARE_EVENT_CLASS to avoid duplicating
everything 4 times.

This saves quite a lot of space in both instruction text and data:

   text    data     bss     dec     hex filename
   9265   19622      16   28903    70e7 arch/powerpc/kernel/irq.o
   6817   19019      16   25852    64fc arch/powerpc/kernel/irq.o

Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 641bd53a

arch/powerpc/include/asm/trace.h

+11 −34
Original line number Diff line number Diff line
@@ -8,7 +8,7 @@ 


struct pt_regs;



TRACE_EVENT(irq_entry,

DECLARE_EVENT_CLASS(ppc64_interrupt_class,



	TP_PROTO(struct pt_regs *regs),
@@ -25,55 +25,32 @@ TRACE_EVENT(irq_entry, 
	TP_printk("pt_regs=%p", __entry->regs)

);



TRACE_EVENT(irq_exit,

DEFINE_EVENT(ppc64_interrupt_class, irq_entry,



	TP_PROTO(struct pt_regs *regs),



	TP_ARGS(regs),



	TP_STRUCT__entry(

		__field(struct pt_regs *, regs)

	),



	TP_fast_assign(

		__entry->regs = regs;

	),



	TP_printk("pt_regs=%p", __entry->regs)

	TP_ARGS(regs)

);



TRACE_EVENT(timer_interrupt_entry,

DEFINE_EVENT(ppc64_interrupt_class, irq_exit,



	TP_PROTO(struct pt_regs *regs),



	TP_ARGS(regs),



	TP_STRUCT__entry(

		__field(struct pt_regs *, regs)

	),



	TP_fast_assign(

		__entry->regs = regs;

	),



	TP_printk("pt_regs=%p", __entry->regs)

	TP_ARGS(regs)

);



TRACE_EVENT(timer_interrupt_exit,

DEFINE_EVENT(ppc64_interrupt_class, timer_interrupt_entry,



	TP_PROTO(struct pt_regs *regs),



	TP_ARGS(regs),

	TP_ARGS(regs)

);



	TP_STRUCT__entry(

		__field(struct pt_regs *, regs)

	),

DEFINE_EVENT(ppc64_interrupt_class, timer_interrupt_exit,



	TP_fast_assign(

		__entry->regs = regs;

	),

	TP_PROTO(struct pt_regs *regs),



	TP_printk("pt_regs=%p", __entry->regs)

	TP_ARGS(regs)

);



#ifdef CONFIG_PPC_PSERIES

CRA Git | Maintained and supported by SUSTech CRA and CCSE