1 files changed, 23 insertions, 0 deletions

diff --git a/kernel/bounds.c b/kernel/bounds.c
new file mode 100644
index 000000000000..c3c55544db2f
--- /dev/null
+++ b/kernel/bounds.c
@@ -0,0 +1,23 @@
+/*
+ * Generate definitions needed by the preprocessor.
+ * This code generates raw asm output which is post-processed
+ * to extract and format the required data.
+ */
+
+#define __GENERATING_BOUNDS_H
+/* Include headers that define the enum constants of interest */
+#include <linux/page-flags.h>
+#include <linux/mmzone.h>
+
+#define DEFINE(sym, val) \
+        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
+
+#define BLANK() asm volatile("\n->" : : )
+
+void foo(void)
+{
+        /* The enum constants to put into include/linux/bounds.h */
+        DEFINE(NR_PAGEFLAGS, __NR_PAGEFLAGS);
+        DEFINE(MAX_NR_ZONES, __MAX_NR_ZONES);
+        /* End of constants */
+}