From: Nathan Chancellor <nathan@kernel.org>
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: linux: build faulure: error: "__has_attribute" is not defined
Date: Tue, 14 Sep 2021 09:26:01 -0700 [thread overview]
Message-ID: <3bf6f4f4-9c96-6e0c-951d-5509175dddfe@kernel.org> (raw)
In-Reply-To: <c1b1a299-c60d-28a4-07ab-1ecd211d6da9@i-love.sakura.ne.jp>
Hi Tetsuo,
On 9/14/2021 6:41 AM, Tetsuo Handa wrote:
> Hello.
>
> With gcc (GCC) 8.3.1 20190311 (Red Hat 8.3.1-3) on d0ee23f9d78be553 ("tools:
> compiler-gcc.h: Guard error attribute use with __has_attribute"), I get
>
> CC /usr/src/linux/tools/objtool/exec-cmd.o
> In file included from /usr/src/linux/tools/include/linux/compiler_types.h:36:0,
> from /usr/src/linux/tools/include/linux/compiler.h:5,
> from exec-cmd.c:2:
> /usr/src/linux/tools/include/linux/compiler-gcc.h:19:5: error: "__has_attribute" is not defined [-Werror=undef]
> #if __has_attribute(__error__)
> ^
> /usr/src/linux/tools/include/linux/compiler-gcc.h:19:20: error: missing binary operator before token "("
> #if __has_attribute(__error__)
> ^
> cc1: all warnings being treated as errors
> make[5]: *** [/usr/src/linux/tools/objtool/exec-cmd.o] Error 1
> make[4]: *** [/usr/src/linux/tools/objtool/libsubcmd-in.o] Error 2
> make[3]: *** [/usr/src/linux/tools/objtool/libsubcmd.a] Error 2
> make[2]: *** [objtool] Error 2
> make[1]: *** [tools/objtool] Error 2
> make: *** [__sub-make] Error 2
Sorry for the breakage :(
This is the most reasonable close that I can get to that compiler version:
# gcc --version | head -1
gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1)
and after I install all of the dependencies, the kernel builds just fine:
# dnf update -y
...
# dnf group install -y "Development Tools"
...
# dnf install -y bc openssl-devel
...
# make -j"$(nproc)" distclean defconfig bzImage
...
OBJCOPY arch/x86/boot/vmlinux.bin
AS arch/x86/boot/header.o
LD arch/x86/boot/setup.elf
OBJCOPY arch/x86/boot/setup.bin
BUILD arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready (#1)
Maybe something with your configuration? Although that seems unlikely
given it is happening in objtool, whose build does not depend on
configuration options within it. What does V=1 show as the command for
exec-cmd.o so that I can try to just run that locally?
Cheers,
Nathan
next prev parent reply other threads:[~2021-09-14 16:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 13:41 linux: build faulure: error: "__has_attribute" is not defined Tetsuo Handa
2021-09-14 16:02 ` Linus Torvalds
2021-09-14 16:26 ` Nathan Chancellor [this message]
2021-09-15 1:05 ` linux: build failure: " Tetsuo Handa
2021-09-15 2:59 ` Linus Torvalds
2021-09-15 3:45 ` Nathan Chancellor
2021-09-15 4:00 ` Nick Desaulniers
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