vsyscall_trace.h

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#undef TRACE_SYSTEM
#define TRACE_SYSTEM vsyscall

#if !defined(__VSYSCALL_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define __VSYSCALL_TRACE_H

#include <linux/tracepoint.h>

TRACE_EVENT(emulate_vsyscall,

        TP_PROTO(int nr),

        TP_ARGS(nr),

        TP_STRUCT__entry(__field(int, nr)),

        TP_fast_assign(
               __entry->nr = nr;
               ),

        TP_printk("nr = %d", __entry->nr)
);

#endif

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH ../../arch/x86/kernel
#define TRACE_INCLUDE_FILE vsyscall_trace
#include <trace/define_trace.h>