Here is reworked version on the trap tracepoints. If it looks good, i will go on by sending a lttng-modules patch adding the trap-probe.
Comments are welcome. Francis On Wed, Mar 20, 2013 at 3:55 PM, Francis Deslauriers <fdesl...@gmail.com>wrote: > This patch adds new trap tracepoint definitions. Both trap entry and trap > exit > tracepoints can be added. > > Signed-off-by: Francis Deslauriers <fdesl...@gmail.com> > --- > include/trace/events/trap.h | 45 > +++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 45 insertions(+) > create mode 100644 include/trace/events/trap.h > > diff --git a/include/trace/events/trap.h b/include/trace/events/trap.h > new file mode 100644 > index 0000000..e79e8c0 > --- /dev/null > +++ b/include/trace/events/trap.h > @@ -0,0 +1,45 @@ > +#undef TRACE_SYSTEM > +#define TRACE_SYSTEM trap > + > +#if !defined(_TRACE_TRAP_H) || defined(TRACE_HEADER_MULTI_READ) > +#define _TRACE_TRAP_H > + > +#include <linux/tracepoint.h> > + > +TRACE_EVENT(trap_entry, > + > + TP_PROTO(struct pt_regs *regs, long trap), > + > + TP_ARGS(regs, trap), > + > + TP_STRUCT__entry( > + __field( long, trap ) > + __field( unsigned long, ip) > + ), > + TP_fast_assign( > + __entry->trap = trap; > + __entry->ip = regs ? instruction_pointer(regs) : 0UL; > + ), > + > + TP_printk("number=%ld, ip = %lu", __entry->trap, __entry->ip) > +); > + > +TRACE_EVENT(trap_exit, > + > + TP_PROTO(long trap), > + > + TP_ARGS(trap), > + > + TP_STRUCT__entry( > + __field( long, trap ) > + ), > + TP_fast_assign( > + __entry->trap = trap; > + ), > + > + TP_printk("number=%ld", __entry->trap) > +); > + > +#endif /* _TRACE_TRAP_H */ > +/* This part must be outside protection */ > +#include <trace/define_trace.h> > -- > 1.7.10.4 > >
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