include/linux/compiler-intel.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __LINUX_COMPILER_TYPES_H
   3 #error "Please don't include <linux/compiler-intel.h> directly, include <linux/compiler.h> instead."
   4 #endif
   5
   6 #ifdef __ECC
   7
   8 /* Some compiler specific definitions are overwritten here
   9  * for Intel ECC compiler
  10  */
  11
  12 #include <asm/intrinsics.h>
  13
  14 /* Intel ECC compiler doesn't support gcc specific asm stmts.
  15  * It uses intrinsics to do the equivalent things.
  16  */
  17
  18 #define barrier() __memory_barrier()
  19 #define barrier_data(ptr) barrier()
  20
  21 #define RELOC_HIDE(ptr, off)                                    \
  22   ({ unsigned long __ptr;                                       \
  23      __ptr = (unsigned long) (ptr);                             \
  24     (typeof(ptr)) (__ptr + (off)); })
  25
  26 /* This should act as an optimization barrier on var.
  27  * Given that this compiler does not have inline assembly, a compiler barrier
  28  * is the best we can do.
  29  */
  30 #define OPTIMIZER_HIDE_VAR(var) barrier()
  31
  32 /* Intel ECC compiler doesn't support __builtin_types_compatible_p() */
  33 #define __must_be_array(a) 0
  34
  35 #endif
  36
  37 /* icc has this, but it's called _bswap16 */
  38 #define __HAVE_BUILTIN_BSWAP16__
  39 #define __builtin_bswap16 _bswap16
  40
  41 /* The following are for compatibility with GCC, from compiler-gcc.h,
  42  * and may be redefined here because they should not be shared with other
  43  * compilers, like clang.
  44  */
  45 #define __visible       __attribute__((externally_visible))