mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-27 22:51:31 +00:00
5c67a52f3d
The attribute syntax optionally allows to surround attribute names with "__" in order to avoid collisions with macros of the same name (see https://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html). This homogenizes all attributes to use the syntax with underscores. While there are currently only a handful of cases of some TUs defining macros like "error" which may collide with the attributes, this should prevent futures surprises. This has been done only for "standard" attributes supported by the major compilers. In other words, those of third-party tools (e.g. sparse, plugins...) have not been changed for the moment. Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # on top of v4.19-rc5, clang 7 Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __LINUX_COMPILER_TYPES_H
|
|
#error "Please don't include <linux/compiler-intel.h> directly, include <linux/compiler.h> instead."
|
|
#endif
|
|
|
|
#ifdef __ECC
|
|
|
|
/* Some compiler specific definitions are overwritten here
|
|
* for Intel ECC compiler
|
|
*/
|
|
|
|
#include <asm/intrinsics.h>
|
|
|
|
/* Intel ECC compiler doesn't support gcc specific asm stmts.
|
|
* It uses intrinsics to do the equivalent things.
|
|
*/
|
|
|
|
#define barrier() __memory_barrier()
|
|
#define barrier_data(ptr) barrier()
|
|
|
|
#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
|
|
|
|
/* icc has this, but it's called _bswap16 */
|
|
#define __HAVE_BUILTIN_BSWAP16__
|
|
#define __builtin_bswap16 _bswap16
|
|
|
|
/* The following are for compatibility with GCC, from compiler-gcc.h,
|
|
* and may be redefined here because they should not be shared with other
|
|
* compilers, like clang.
|
|
*/
|
|
#define __visible __attribute__((__externally_visible__))
|