42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
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#ifndef _COMPAT_LINUX_TRACEPOINT_H
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#define _COMPAT_LINUX_TRACEPOINT_H 1
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#include <linux/version.h>
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#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,32))
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/*
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* Disable all tracing for older kernels
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* < 2.6.27 had no tracing
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* 2.6.27 had broken tracing
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* 2.6.28-2.6.32 didn't have anything like DECLARE_EVENT_CLASS
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* and faking it would be extremely difficult
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*/
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
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/*
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* For 2.6.28+ include the original tracepoint.h but override
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* the defines new code uses to disable tracing completely.
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*/
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#include_next <linux/tracepoint.h>
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#endif
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#undef TRACE_EVENT
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#define TRACE_EVENT(name, proto, ...) \
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static inline void trace_ ## name(proto) {}
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(...)
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#undef DEFINE_EVENT
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#define DEFINE_EVENT(evt_class, name, proto, ...) \
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static inline void trace_ ## name(proto) {}
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#define TP_PROTO(args...) args
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#define TP_ARGS(args...) args
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#define TP_CONDITION(args...) args
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#else
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/* since 2.6.33, tracing hasn't changed, so just include the kernel's file */
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#include_next <linux/tracepoint.h>
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#endif /* (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,32)) */
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#endif /* _COMPAT_LINUX_TRACEPOINT_H */
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