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diff --git a/kitten/include/lwk/linkage.h b/kitten/include/lwk/linkage.h
new file mode 100644
index 0000000..832627b
--- /dev/null
+++ b/kitten/include/lwk/linkage.h
@@ -0,0 +1,63 @@
+#ifndef _LWK_LINKAGE_H
+#define _LWK_LINKAGE_H
+
+#include <arch/linkage.h>
+
+#ifdef __cplusplus
+#define CPP_ASMLINKAGE extern "C"
+#else
+#define CPP_ASMLINKAGE
+#endif
+
+#ifndef asmlinkage
+#define asmlinkage CPP_ASMLINKAGE
+#endif
+
+#ifndef prevent_tail_call
+# define prevent_tail_call(ret) do { } while (0)
+#endif
+
+#ifndef __ALIGN
+#define __ALIGN		.align 4,0x90
+#define __ALIGN_STR	".align 4,0x90"
+#endif
+
+#ifdef __ASSEMBLY__
+
+#define ALIGN __ALIGN
+#define ALIGN_STR __ALIGN_STR
+
+#ifndef ENTRY
+#define ENTRY(name) \
+  .globl name; \
+  ALIGN; \
+  name:
+#endif
+
+#define KPROBE_ENTRY(name) \
+  .section .kprobes.text, "ax"; \
+  ENTRY(name)
+
+#ifndef END
+#define END(name) \
+  .size name, .-name
+#endif
+
+#ifndef ENDPROC
+#define ENDPROC(name) \
+  .type name, @function; \
+  END(name)
+#endif
+
+#endif
+
+#define NORET_TYPE    /**/
+#define ATTRIB_NORET  __attribute__((noreturn))
+#define NORET_AND     noreturn,
+
+#ifndef FASTCALL
+#define FASTCALL(x)	x
+#define fastcall
+#endif
+
+#endif