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-rw-r--r--kernel/tools/perf/util/xyarray.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/tools/perf/util/xyarray.h b/kernel/tools/perf/util/xyarray.h
new file mode 100644
index 000000000..c488a0727
--- /dev/null
+++ b/kernel/tools/perf/util/xyarray.h
@@ -0,0 +1,20 @@
+#ifndef _PERF_XYARRAY_H_
+#define _PERF_XYARRAY_H_ 1
+
+#include <sys/types.h>
+
+struct xyarray {
+ size_t row_size;
+ size_t entry_size;
+ char contents[];
+};
+
+struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size);
+void xyarray__delete(struct xyarray *xy);
+
+static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
+{
+ return &xy->contents[x * xy->row_size + y * xy->entry_size];
+}
+
+#endif /* _PERF_XYARRAY_H_ */