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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ftrace.h (1767B)

      1#ifndef __PERF_FTRACE_H__
      2#define __PERF_FTRACE_H__
      3
      4#include <linux/list.h>
      5
      6#include "target.h"
      7
      8struct evlist;
      9
     10struct perf_ftrace {
     11	struct evlist		*evlist;
     12	struct target		target;
     13	const char		*tracer;
     14	struct list_head	filters;
     15	struct list_head	notrace;
     16	struct list_head	graph_funcs;
     17	struct list_head	nograph_funcs;
     18	unsigned long		percpu_buffer_size;
     19	bool			inherit;
     20	bool			use_nsec;
     21	int			graph_depth;
     22	int			func_stack_trace;
     23	int			func_irq_info;
     24	int			graph_nosleep_time;
     25	int			graph_noirqs;
     26	int			graph_verbose;
     27	int			graph_thresh;
     28	unsigned int		initial_delay;
     29};
     30
     31struct filter_entry {
     32	struct list_head	list;
     33	char			name[];
     34};
     35
     36#define NUM_BUCKET  22  /* 20 + 2 (for outliers in both direction) */
     37
     38#ifdef HAVE_BPF_SKEL
     39
     40int perf_ftrace__latency_prepare_bpf(struct perf_ftrace *ftrace);
     41int perf_ftrace__latency_start_bpf(struct perf_ftrace *ftrace);
     42int perf_ftrace__latency_stop_bpf(struct perf_ftrace *ftrace);
     43int perf_ftrace__latency_read_bpf(struct perf_ftrace *ftrace,
     44				  int buckets[]);
     45int perf_ftrace__latency_cleanup_bpf(struct perf_ftrace *ftrace);
     46
     47#else  /* !HAVE_BPF_SKEL */
     48
     49static inline int
     50perf_ftrace__latency_prepare_bpf(struct perf_ftrace *ftrace __maybe_unused)
     51{
     52	return -1;
     53}
     54
     55static inline int
     56perf_ftrace__latency_start_bpf(struct perf_ftrace *ftrace __maybe_unused)
     57{
     58	return -1;
     59}
     60
     61static inline int
     62perf_ftrace__latency_stop_bpf(struct perf_ftrace *ftrace __maybe_unused)
     63{
     64	return -1;
     65}
     66
     67static inline int
     68perf_ftrace__latency_read_bpf(struct perf_ftrace *ftrace __maybe_unused,
     69			      int buckets[] __maybe_unused)
     70{
     71	return -1;
     72}
     73
     74static inline int
     75perf_ftrace__latency_cleanup_bpf(struct perf_ftrace *ftrace __maybe_unused)
     76{
     77	return -1;
     78}
     79
     80#endif  /* HAVE_BPF_SKEL */
     81
     82#endif  /* __PERF_FTRACE_H__ */