cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sample-trace-array.h (2428B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2
      3/*
      4 * If TRACE_SYSTEM is defined, that will be the directory created
      5 * in the ftrace directory under /sys/kernel/tracing/events/<system>
      6 *
      7 * The define_trace.h below will also look for a file name of
      8 * TRACE_SYSTEM.h where TRACE_SYSTEM is what is defined here.
      9 * In this case, it would look for sample-trace.h
     10 *
     11 * If the header name will be different than the system name
     12 * (as in this case), then you can override the header name that
     13 * define_trace.h will look up by defining TRACE_INCLUDE_FILE
     14 *
     15 * This file is called sample-trace-array.h but we want the system
     16 * to be called "sample-subsystem". Therefore we must define the name of this
     17 * file:
     18 *
     19 * #define TRACE_INCLUDE_FILE sample-trace-array
     20 *
     21 * As we do in the bottom of this file.
     22 *
     23 * Notice that TRACE_SYSTEM should be defined outside of #if
     24 * protection, just like TRACE_INCLUDE_FILE.
     25 */
     26#undef TRACE_SYSTEM
     27#define TRACE_SYSTEM sample-subsystem
     28
     29/*
     30 * TRACE_SYSTEM is expected to be a C valid variable (alpha-numeric
     31 * and underscore), although it may start with numbers. If for some
     32 * reason it is not, you need to add the following lines:
     33 */
     34#undef TRACE_SYSTEM_VAR
     35#define TRACE_SYSTEM_VAR sample_subsystem
     36
     37/*
     38 * But the above is only needed if TRACE_SYSTEM is not alpha-numeric
     39 * and underscored. By default, TRACE_SYSTEM_VAR will be equal to
     40 * TRACE_SYSTEM. As TRACE_SYSTEM_VAR must be alpha-numeric, if
     41 * TRACE_SYSTEM is not, then TRACE_SYSTEM_VAR must be defined with
     42 * only alpha-numeric and underscores.
     43 *
     44 * The TRACE_SYSTEM_VAR is only used internally and not visible to
     45 * user space.
     46 */
     47
     48/*
     49 * Notice that this file is not protected like a normal header.
     50 * We also must allow for rereading of this file. The
     51 *
     52 *  || defined(TRACE_HEADER_MULTI_READ)
     53 *
     54 * serves this purpose.
     55 */
     56#if !defined(_SAMPLE_TRACE_ARRAY_H) || defined(TRACE_HEADER_MULTI_READ)
     57#define _SAMPLE_TRACE_ARRAY_H
     58
     59#include <linux/tracepoint.h>
     60TRACE_EVENT(sample_event,
     61
     62	TP_PROTO(int count, unsigned long time),
     63
     64	TP_ARGS(count, time),
     65
     66	TP_STRUCT__entry(
     67		__field(int, count)
     68		__field(unsigned long, time)
     69	),
     70
     71	TP_fast_assign(
     72		__entry->count = count;
     73		__entry->time = time;
     74	),
     75
     76	TP_printk("count value=%d at jiffies=%lu", __entry->count,
     77		__entry->time)
     78	);
     79#endif
     80
     81#undef TRACE_INCLUDE_PATH
     82#define TRACE_INCLUDE_PATH .
     83#define TRACE_INCLUDE_FILE sample-trace-array
     84#include <trace/define_trace.h>