linux-kernel - /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:102:21: warning: invalid suffix on literal; C++11 requires a space between literal and string macro

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Date:   Sun, 14 Feb 2021 04:00:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Valdis Klētnieks <valdis.kletnieks@...edu>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Kees Cook <keescook@...omium.org>
Subject: /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:102:21:
 warning: invalid suffix on literal; C++11 requires a space between literal
 and string macro

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   dcc0b49040c70ad827a7f3d58a21b01fdb14e749
commit: 67a5a68013056cbcf0a647e36cb6f4622fb6a470 gcc-plugins: fix gcc 11 indigestion with plugins...
date:   5 weeks ago
config: x86_64-randconfig-a001-20200622 (attached as .config)
compiler: gcc-5 (Ubuntu 5.5.0-12ubuntu1) 5.5.0 20171010
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=67a5a68013056cbcf0a647e36cb6f4622fb6a470
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 67a5a68013056cbcf0a647e36cb6f4622fb6a470
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   In file included from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/tm.h:27,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/gcc-plugin.h:31,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/plugin.h:23,
                    from scripts/gcc-plugins/gcc-common.h:9,
                    from scripts/gcc-plugins/latent_entropy_plugin.c:78:
>> /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:102:21: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
       fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
                        ^
   /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:170:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
          fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",  \
                           ^
   In file included from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/tm.h:48,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/gcc-plugin.h:31,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/plugin.h:23,
                    from scripts/gcc-plugins/gcc-common.h:9,
                    from scripts/gcc-plugins/latent_entropy_plugin.c:78:
>> /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/defaults.h:126:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
          fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",  \
                           ^
>> cc1plus: warning: unrecognized command line option '-Wno-format-diag'
--
   In file included from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/tm.h:27,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/gcc-plugin.h:31,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/plugin.h:23,
                    from scripts/gcc-plugins/gcc-common.h:9,
                    from scripts/gcc-plugins/latent_entropy_plugin.c:78:
>> /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:102:21: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
       fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
                        ^
   /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:170:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
          fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",  \
                           ^
   In file included from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/tm.h:48,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/gcc-plugin.h:31,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/plugin.h:23,
                    from scripts/gcc-plugins/gcc-common.h:9,
                    from scripts/gcc-plugins/latent_entropy_plugin.c:78:
>> /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/defaults.h:126:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
          fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",  \
                           ^
   In file included from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/tm.h:27,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/gcc-plugin.h:31,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/plugin.h:23,
                    from scripts/gcc-plugins/gcc-common.h:9,
                    from scripts/gcc-plugins/sancov_plugin.c:22:
>> /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:102:21: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
       fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
                        ^
   /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:170:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
          fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",  \
                           ^
   In file included from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/tm.h:27,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/gcc-plugin.h:31,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/plugin.h:23,
                    from scripts/gcc-plugins/gcc-common.h:9,
                    from scripts/gcc-plugins/structleak_plugin.c:32:
>> /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:102:21: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
       fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
                        ^
   /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:170:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
          fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",  \
                           ^
   In file included from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/tm.h:48,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/gcc-plugin.h:31,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/plugin.h:23,
                    from scripts/gcc-plugins/gcc-common.h:9,
                    from scripts/gcc-plugins/sancov_plugin.c:22:
>> /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/defaults.h:126:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
          fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",  \
                           ^
   In file included from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/tm.h:48,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/gcc-plugin.h:31,
                    from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/plugin.h:23,
                    from scripts/gcc-plugins/gcc-common.h:9,
                    from scripts/gcc-plugins/structleak_plugin.c:32:
>> /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/defaults.h:126:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
          fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",  \
                           ^
>> cc1plus: warning: unrecognized command line option '-Wno-format-diag'
>> cc1plus: warning: unrecognized command line option '-Wno-format-diag'
>> cc1plus: warning: unrecognized command line option '-Wno-format-diag'

---
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https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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