From fb8ffd7cfc68b3dc44e182356a207d784cb30b34 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 4 Sep 2014 02:40:58 +0900 Subject: compiler*.h: sync include/linux/compiler*.h with Linux 3.16 Copy them from Linux v3.16 tag. My main motivation of this commit is to add compiler-clang.h. Signed-off-by: Masahiro Yamada Cc: Jeroen Hofstee --- include/linux/compiler-intel.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 include/linux/compiler-intel.h (limited to 'include/linux/compiler-intel.h') diff --git a/include/linux/compiler-intel.h b/include/linux/compiler-intel.h new file mode 100644 index 0000000..ba147a1 --- /dev/null +++ b/include/linux/compiler-intel.h @@ -0,0 +1,40 @@ +#ifndef __LINUX_COMPILER_H +#error "Please don't include directly, include instead." +#endif + +#ifdef __ECC + +/* Some compiler specific definitions are overwritten here + * for Intel ECC compiler + */ + +#include + +/* Intel ECC compiler doesn't support gcc specific asm stmts. + * It uses intrinsics to do the equivalent things. + */ +#undef RELOC_HIDE +#undef OPTIMIZER_HIDE_VAR + +#define RELOC_HIDE(ptr, off) \ + ({ unsigned long __ptr; \ + __ptr = (unsigned long) (ptr); \ + (typeof(ptr)) (__ptr + (off)); }) + +/* This should act as an optimization barrier on var. + * Given that this compiler does not have inline assembly, a compiler barrier + * is the best we can do. + */ +#define OPTIMIZER_HIDE_VAR(var) barrier() + +/* Intel ECC compiler doesn't support __builtin_types_compatible_p() */ +#define __must_be_array(a) 0 + +#endif + +#ifndef __HAVE_BUILTIN_BSWAP16__ +/* icc has this, but it's called _bswap16 */ +#define __HAVE_BUILTIN_BSWAP16__ +#define __builtin_bswap16 _bswap16 +#endif + -- cgit v1.1