Stricted
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
#ifndef _LINUX_TRACEPOINT_H
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#include <linux/tracepoint.h>
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#else
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#ifndef _TRACEPOINT_DEFINE
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#define _TRACEPOINT_DEFINE
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#ifdef CONFIG_TRACEPOINTS
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/*
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* Make sure the alignment of the structure in the __tracepoints section will
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* not add unwanted padding between the beginning of the section and the
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* structure. Force alignment to the same alignment as the section start.
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*/
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#undef TP_PROTO
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#define TP_PROTO(args...) args
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#undef TP_ARGS
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#define TP_ARGS(args...) args
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#undef PARAMS
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#define PARAMS(args...) args
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#undef DECLARE_TRACE
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#define DECLARE_TRACE(name, proto, args) \
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extern struct tracepoint __tracepoint_##name; \
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static inline void trace_##name(proto) \
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{ \
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if (unlikely(__tracepoint_##name.state)) \
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__DO_TRACE(&__tracepoint_##name, \
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TP_PROTO(proto), TP_ARGS(args)); \
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} \
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static inline int register_trace_##name(void (*probe)(proto)) \
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{ \
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return tracepoint_probe_register(#name, (void *)probe); \
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} \
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static inline int unregister_trace_##name(void (*probe)(proto)) \
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{ \
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return tracepoint_probe_unregister(#name, (void *)probe);\
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}
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#else /* !CONFIG_TRACEPOINTS */
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#undef DECLARE_TRACE
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#define DECLARE_TRACE(name, proto, args) \
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static inline void _do_trace_##name(struct tracepoint *tp, proto) \
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{ } \
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static inline void trace_##name(proto) \
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{ } \
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static inline int register_trace_##name(void (*probe)(proto)) \
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{ \
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return -ENOSYS; \
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} \
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static inline int unregister_trace_##name(void (*probe)(proto)) \
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{ \
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return -ENOSYS; \
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}
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#endif /* CONFIG_TRACEPOINTS */
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/* Define TRACE_EVENT for Declare tracepoint again*/
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#undef TRACE_EVENT
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#define TRACE_EVENT(name, proto, args, struct, assign, print) \
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DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
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#undef TRACE_EVENT_FN
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#define TRACE_EVENT_FN(name, proto, args, struct, \
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assign, print, reg, unreg) \
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DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
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#endif /*_TRACEPOINT_DEFINE*/
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#endif /* _LINUX_TRACEPOINT_H */
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