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35 * Data structures for flame graph sampling
38 #ifndef _SYS_FLAME_GRAPH_H_
39 #define _SYS_FLAME_GRAPH_H_
41 #include <sys/types.h>
43 #define FLAME_GRAPH_BASE_SYM "_flame_graph_ary"
45 #define FLAME_GRAPH_FRAMES 32
46 #define FLAME_GRAPH_NENTRIES 256
48 struct flame_graph_entry {
49 intptr_t rips[FLAME_GRAPH_FRAMES];
52 struct flame_graph_pcpu {
55 struct flame_graph_entry *fge; /* array of nentries */