tools/include: make uapi/linux/types.h usable from assembly

The "real" linux/types.h UAPI header gracefully degrades to a NOOP when
included from assembly code.

Mirror this behaviour in the tools/ variant.

Test for __ASSEMBLER__ over __ASSEMBLY__ as the former is provided by the
toolchain automatically.

Reported-by: Mark Brown <[email protected]>
Closes: https://lore.kernel.org/lkml/[email protected]/
Fixes: c9fbaa8 ("selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers")
Signed-off-by: Thomas Weißschuh <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Reviewed-by: Mark Brown <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: t-8ch

tools/include/uapi/linux/types.h

@@ -4,6 +4,8 @@
 
 #include <asm-generic/int-ll64.h>
 
+#ifndef __ASSEMBLER__
+
 /* copied from linux:include/uapi/linux/types.h */
 #define __bitwise
 typedef __u16 __bitwise __le16;
@@ -20,4 +22,5 @@ typedef __u32 __bitwise __wsum;
 #define __aligned_be64 __be64 __attribute__((aligned(8)))
 #define __aligned_le64 __le64 __attribute__((aligned(8)))
 
+#endif /* __ASSEMBLER__ */
 #endif /* _UAPI_LINUX_TYPES_H */