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-rw-r--r--tools/perf/builtin-trace.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index f5aa637..fd48534 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -16,6 +16,23 @@
#include <sys/mman.h>
#include <linux/futex.h>
+/* For older distros: */
+#ifndef MAP_STACK
+# define MAP_STACK 0x20000
+#endif
+
+#ifndef MADV_HWPOISON
+# define MADV_HWPOISON 100
+#endif
+
+#ifndef MADV_MERGEABLE
+# define MADV_MERGEABLE 12
+#endif
+
+#ifndef MADV_UNMERGEABLE
+# define MADV_UNMERGEABLE 13
+#endif
+
static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,
unsigned long arg,
u8 arg_idx __maybe_unused,
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