linux-stable/samples/bpf/asm_goto_workaround.h
KP Singh 98beb3edeb samples/bpf: Add a workaround for asm_inline
This was added in commit eb11186930 ("compiler-types.h: add asm_inline
definition") and breaks samples/bpf as clang does not support asm __inline.

Fixes: eb11186930 ("compiler-types.h: add asm_inline definition")
Co-developed-by: Florent Revest <revest@google.com>
Signed-off-by: Florent Revest <revest@google.com>
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20191002191652.11432-1-kpsingh@chromium.org
2019-10-03 17:37:11 +02:00

28 lines
725 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2019 Facebook */
#ifndef __ASM_GOTO_WORKAROUND_H
#define __ASM_GOTO_WORKAROUND_H
/*
* This will bring in asm_volatile_goto and asm_inline macro definitions
* if enabled by compiler and config options.
*/
#include <linux/types.h>
#ifdef asm_volatile_goto
#undef asm_volatile_goto
#define asm_volatile_goto(x...) asm volatile("invalid use of asm_volatile_goto")
#endif
/*
* asm_inline is defined as asm __inline in "include/linux/compiler_types.h"
* if supported by the kernel's CC (i.e CONFIG_CC_HAS_ASM_INLINE) which is not
* supported by CLANG.
*/
#ifdef asm_inline
#undef asm_inline
#define asm_inline asm
#endif
#define volatile(x...) volatile("")
#endif