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-rw-r--r--tools/perf/util/memswap.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/perf/util/memswap.c b/tools/perf/util/memswap.c
new file mode 100644
index 000000000000..55f7faa8d9ec
--- /dev/null
+++ b/tools/perf/util/memswap.c
@@ -0,0 +1,24 @@
+#include <byteswap.h>
+#include "memswap.h"
+#include <linux/types.h>
+
+void mem_bswap_32(void *src, int byte_size)
+{
+ u32 *m = src;
+ while (byte_size > 0) {
+ *m = bswap_32(*m);
+ byte_size -= sizeof(u32);
+ ++m;
+ }
+}
+
+void mem_bswap_64(void *src, int byte_size)
+{
+ u64 *m = src;
+
+ while (byte_size > 0) {
+ *m = bswap_64(*m);
+ byte_size -= sizeof(u64);
+ ++m;
+ }
+}