linux-kernel - Re: [PATCH 05/45] C++: Set compilation as C++ for .c files

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Date:   Mon, 2 Apr 2018 14:10:50 +0800
From:   kbuild test robot <lkp@...el.com>
To:     David Howells <dhowells@...hat.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 05/45] C++: Set compilation as C++ for .c files

Hi David,

I love your patch! Yet something to improve:

[auto build test ERROR on v4.16-rc7]
[cannot apply to linus/master tip/x86/core tip/locking/core v4.16 next-20180329]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/David-Howells/C-Convert-the-kernel-to-C/20180402-120344
config: i386-randconfig-x073-201813 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   CONFIG_CC_STACKPROTECTOR_AUTO: Compiler does not support any known stack-protector
>> cc1: warning: command line option '-fno-rtti' is valid for C++/ObjC++ but not for C
>> cc1: warning: command line option '-fpermissive' is valid for C++/ObjC++ but not for C
>> cc1: error: CPU you selected does not support x86-64 instruction set
   make[2]: *** [kernel/bounds.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

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Download attachment ".config.gz" of type "application/gzip" (31736 bytes)