linux-kernel - Re: /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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Message-ID: <46545.1613334816@turing-police>
Date:   Sun, 14 Feb 2021 15:33:36 -0500
From:   "Valdis Klētnieks" <valdis.kletnieks@...edu>
To:     kernel test robot <lkp@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Kees Cook <keescook@...omium.org>
Subject: Re: /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

On Sun, 14 Feb 2021 04:00:31 +0800, kernel test robot said:

> 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-pugin.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",\
>                         ^

Kees: I already sent a patch for this on Jan 13, but apparently it didn't
get pushed out..



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