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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
This commit is contained in:
KP Singh 2019-10-02 21:16:52 +02:00 committed by Daniel Borkmann
parent df551058f7
commit 98beb3edeb
1 changed files with 12 additions and 1 deletions
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13
samples/bpf/asm_goto_workaround.h
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@ -3,7 +3,8 @@
#ifndef __ASM_GOTO_WORKAROUND_H
#define __ASM_GOTO_WORKAROUND_H
/* this will bring in asm_volatile_goto macro definition
/*
* This will bring in asm_volatile_goto and asm_inline macro definitions
* if enabled by compiler and config options.
*/
#include <linux/types.h>
@ -13,5 +14,15 @@
#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