mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-19 23:37:50 +07:00
12c8f25a01
KASAN uses the __no_sanitize_address macro to disable instrumentation of particular functions. Right now it's defined only for GCC build, which causes false positives when clang is used. This patch adds a definition for clang. Note, that clang's revision 329612 or higher is required. [andreyknvl@google.com: remove redundant #ifdef CONFIG_KASAN check] Link: http://lkml.kernel.org/r/c79aa31a2a2790f6131ed607c58b0dd45dd62a6c.1523967959.git.andreyknvl@google.com Link: http://lkml.kernel.org/r/4ad725cc903f8534f8c8a60f0daade5e3d674f8d.1523554166.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: David Rientjes <rientjes@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Paul Lawrence <paullawrence@google.com> Cc: Sandipan Das <sandipan@linux.vnet.ibm.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
35 lines
1010 B
C
35 lines
1010 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __LINUX_COMPILER_TYPES_H
|
|
#error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."
|
|
#endif
|
|
|
|
/* Some compiler specific definitions are overwritten here
|
|
* for Clang compiler
|
|
*/
|
|
|
|
#ifdef uninitialized_var
|
|
#undef uninitialized_var
|
|
#define uninitialized_var(x) x = *(&(x))
|
|
#endif
|
|
|
|
/* same as gcc, this was present in clang-2.6 so we can assume it works
|
|
* with any version that can compile the kernel
|
|
*/
|
|
#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
|
|
|
|
/* all clang versions usable with the kernel support KASAN ABI version 5 */
|
|
#define KASAN_ABI_VERSION 5
|
|
|
|
/* emulate gcc's __SANITIZE_ADDRESS__ flag */
|
|
#if __has_feature(address_sanitizer)
|
|
#define __SANITIZE_ADDRESS__
|
|
#endif
|
|
|
|
#undef __no_sanitize_address
|
|
#define __no_sanitize_address __attribute__((no_sanitize("address")))
|
|
|
|
/* Clang doesn't have a way to turn it off per-function, yet. */
|
|
#ifdef __noretpoline
|
|
#undef __noretpoline
|
|
#endif
|