microblaze: Copy ppc asm-compat.h for clean handling of constants in asm and C

Provides the ASM_CONST macro for creating asm-safe constants.

No users yet, we'll be using it in upcoming page.h commit, for generating
the LOAD_OFFSET macro

Signed-off-by: John Williams <john.williams@petalogix.com>

diff --git a/arch/microblaze/include/asm/asm-compat.h b/arch/microblaze/include/asm/asm-compat.h
new file mode 100644 (file)
index 0000000..e7bc9dc
--- /dev/null
+++ b/arch/microblaze/include/asm/asm-compat.h
@@ -0,0 +1,17 @@
+#ifndef _ASM_MICROBLAZE_ASM_COMPAT_H
+#define _ASM_MICROBLAZE_ASM_COMPAT_H
+
+#include <asm/types.h>
+
+#ifdef __ASSEMBLY__
+#  define stringify_in_c(...)  __VA_ARGS__
+#  define ASM_CONST(x)         x
+#else
+/* This version of stringify will deal with commas... */
+#  define __stringify_in_c(...)        #__VA_ARGS__
+#  define stringify_in_c(...)  __stringify_in_c(__VA_ARGS__) " "
+#  define __ASM_CONST(x)       x##UL
+#  define ASM_CONST(x)         __ASM_CONST(x)
+#endif
+
+#endif /* _ASM_MICROBLAZE_ASM_COMPAT_H */