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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: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard 2012-05-22 18:47:48 +00:00 committed by Benjamin Herrenschmidt
parent 641bd53a61
commit d136e27326
1 changed files with 11 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
arch/powerpc/include/asm/trace.h
View File

@ -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