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compiler*.h: sync include/linux/compiler*.h with Linux 5.7-rc5

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Copy these from Linux v5.7-rc5 tag.

This brings in some handy new attributes and is otherwise important to
keep in sync.

We drop the reference to smp_read_barrier_depends() as it is not
relevant on the architectures we support at this time, based on where
it's implemented in Linux today.  We drop the call to kasan_check_read()
as that is not relevant to U-Boot as well.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Tom Rini 2020-05-14 08:30:06 -04:00
parent 8214791daa
commit 67f51b40ca
8 changed files with 788 additions and 571 deletions
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17
include/linux/compiler-intel.h
View file

@ -1,22 +1,17 @@
#ifndef __LINUX_COMPILER_H
/* 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
*/
/* Compiler specific definitions 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.
*/
#undef barrier
#undef barrier_data
#undef RELOC_HIDE
#undef OPTIMIZER_HIDE_VAR
#define barrier() __memory_barrier()
#define barrier_data(ptr) barrier()
@ -32,14 +27,8 @@
*/
#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