[PATCH] Re: tools/liblockdep: Build failure

[Robin Hack]

From: Robin Hack <rhack@xxxxxxxxxx>
Copy asmlinkage macro to lockdep/uinclude/linux/linkage.h.

diff --git a/tools/lib/lockdep/uinclude/linux/linkage.h b/tools/lib/lockdep/uinclude/linux/linkage.h
index fab00ff..6799a5b 100644
--- a/tools/lib/lockdep/uinclude/linux/linkage.h
+++ b/tools/lib/lockdep/uinclude/linux/linkage.h
@@ -1,3 +1,19 @@
+#ifndef _LOCKDEP_ULINKAGE_H
+#define _LOCKDEP_ULINKAGE_H
 
-/* empty file */
+#if GCC_VERSION >= 40600
+/*
+ * Tell the optimizer that something else uses this function or variable.
+ */
+#define __visible __attribute__((externally_visible))
+#else
+#define __visible
+#endif
 
+#define CPP_ASMLINKAGE __visible
+
+#ifndef asmlinkage
+#define asmlinkage CPP_ASMLINKAGE
+#endif
+
+#endif

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