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Subject: Re: [kbuild-all] Re: include/linux/compiler_types.h:315:38: error:
 call to '__compiletime_assert_536' declared with attribute error:
 BUILD_BUG_ON failed: offsetof(struct can_frame, len) != offsetof(struct
 canfd_frame, len) || offsetof(struct can_frame, data) != offsetof(struc...
To:     Marc Kleine-Budde <mkl@pengutronix.de>,
        Oliver Hartkopp <socketcan@hartkopp.net>
Cc:     Patrick Menschel <menschel.p@posteo.de>,
        kernel test robot <lkp@intel.com>, kbuild-all@lists.01.org,
        linux-kernel@vger.kernel.org, linux-can <linux-can@vger.kernel.org>
References: <202103210435.I0fiBGAC-lkp@intel.com>
 <dad98ebd-77a4-3305-e681-278cabe38793@hartkopp.net>
 <7f4f7e1c-194b-a903-d474-e3b742556a55@intel.com>
 <f8075a19-10e1-abf9-6d59-1a46454b74b1@hartkopp.net>
 <b10903ca-c424-b305-d981-fe0004500190@intel.com>
 <20210323073437.yo63wreqnubbeqby@pengutronix.de>
 <7ff6bfd3-6b4b-045a-abb7-485927909587@hartkopp.net>
 <c0fb01a8-6a6a-7e5f-f932-697065d18600@hartkopp.net>
 <20210323085418.4g7rojhkvcg2ib4e@pengutronix.de>
From:   Rong Chen <rong.a.chen@intel.com>
Message-ID: <e52e9f3f-bb88-0cb3-b4ce-7885e57a5dba@intel.com>
Date:   Tue, 23 Mar 2021 16:59:53 +0800
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On 3/23/21 4:54 PM, Marc Kleine-Budde wrote:
> On 23.03.2021 09:32:10, Oliver Hartkopp wrote:
>> I wonder if the compiler configurations (gcc -v) or the options used at
>> kernel build time are identical.
> I tested several compilers and with my .config never triggered a
> problem, but with Rong Chen it does. I'm trying to figure out which
> option it is, stay tuned.
>
> Marc
>

Hi Marc, Oliver,

We use the below cross compiler:

https://download.01.org/0day-ci/cross-package/gcc-9.3.0-nolibc/x86_64-gcc-9.3.0-nolibc_arm-linux-gnueabi.tar.xz

and here is the detail:

$ 
/home/nfs/0day/gcc-9.3.0-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc 
-v
Using built-in specs.
COLLECT_GCC=/home/nfs/0day/gcc-9.3.0-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc
COLLECT_LTO_WRAPPER=/home/nfs/0day/gcc-9.3.0-nolibc/arm-linux-gnueabi/bin/../libexec/gcc/arm-linux-gnueabi/9.3.0/lto-wrapper
Target: arm-linux-gnueabi
Configured with: /tmp/build-crosstools-xh/gcc/gcc-9.3.0/configure 
--target=arm-linux-gnueabi --enable-targets=all 
--prefix=/tmp/build-crosstools-xh/cross --enable-languages=c 
--without-headers --disable-bootstrap --disable-nls --disable-threads 
--disable-shared --disable-libmudflap --disable-libssp --disable-libgomp 
--disable-decimal-float --disable-libquadmath --disable-libatomic 
--disable-libcc1 --disable-libmpx --enable-checking=release
Thread model: single
gcc version 9.3.0 (GCC)

Best Regards,
Rong Chen