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compiler-clang: remove version check for BPF Tracing 

bpftrace parses the kernel headers and uses Clang under the hood.

Remove the version check when __BPF_TRACING__ is defined (as bpftrace
does) so that this tool can continue to parse kernel headers, even with
older clang sources.

Fixes: commit 1f7a44f63e ("compiler-clang: add build check for clang 10.0.1")
Reported-by: Chen Yu <yu.chen.surf@gmail.com>
Reported-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Jarkko Sakkinen <jarkko@kernel.org>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lkml.kernel.org/r/20201104191052.390657-1-ndesaulniers@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nick Desaulniers 2020-11-21 22:17:01 -08:00 committed by Linus Torvalds
parent 450677dcb0
commit bc2dc4406c
1 changed files with 2 additions and 0 deletions
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2
include/linux/compiler-clang.h
View File

@ -8,8 +8,10 @@
+ __clang_patchlevel__)
#if CLANG_VERSION < 100001
#ifndef __BPF_TRACING__
# error Sorry, your version of Clang is too old - please use 10.0.1 or newer.
#endif
#endif
/* Compiler specific definitions for Clang compiler */