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#ifndef _LINUX_KERNEL_TRACE_EVENTS_H
#define _LINUX_KERNEL_TRACE_EVENTS_H
#include <linux/debugfs.h>
#include <linux/ftrace.h>
#include "trace.h"
struct ftrace_event_call {
char *name;
struct dentry *dir;
int enabled;
int (*regfunc)(void);
void (*unregfunc)(void);
};
#undef TPFMT
#define TPFMT(fmt, args...) fmt "\n", ##args
#undef DEFINE_TRACE_FMT
#define DEFINE_TRACE_FMT(call, proto, args, fmt) \
static void ftrace_event_##call(proto) \
{ \
event_trace_printk(_RET_IP_, "(" #call ") " fmt); \
} \
\
static int ftrace_reg_event_##call(void) \
{ \
int ret; \
\
ret = register_trace_##call(ftrace_event_##call); \
if (!ret) \
pr_info("event trace: Could not activate trace point " \
"probe to " #call); \
return ret; \
} \
\
static void ftrace_unreg_event_##call(void) \
{ \
unregister_trace_##call(ftrace_event_##call); \
} \
\
static struct ftrace_event_call __used \
__attribute__((__aligned__(4))) \
__attribute__((section("_ftrace_events"))) event_##call = { \
.name = #call, \
.regfunc = ftrace_reg_event_##call, \
.unregfunc = ftrace_unreg_event_##call, \
}
void event_trace_printk(unsigned long ip, const char *fmt, ...);
extern struct ftrace_event_call __start_ftrace_events[];
extern struct ftrace_event_call __stop_ftrace_events[];
#endif /* _LINUX_KERNEL_TRACE_EVENTS_H */
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