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From: kbuild test robot <fengguang.wu@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org, tipbuild@zytor.com
Subject: [tip:WIP.x86/kpti 50/65] include/linux/compiler.h:319:38: error: call to '__compiletime_assert_321' declared with attribute error: BUILD_BUG_ON failed: MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE
Date: Mon, 4 Dec 2017 23:43:01 +0800	[thread overview]
Message-ID: <201712042356.vLtg72S2%fengguang.wu@intel.com> (raw)

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/kpti
head:   c7ddf30cab554658b154ee16ae5e5d577ff530bf
commit: 9ebd9d9cdbc90021a5e320fb054cf48c027e6d34 [50/65] x86/fixmap: Add ldt entries to user shared fixmap
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
reproduce:
        git checkout 9ebd9d9cdbc90021a5e320fb054cf48c027e6d34
        # save the attached .config to linux build tree
        make ARCH=x86_64 

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

   In file included from include/linux/init.h:5:0,
                    from arch/x86//kernel/head64.c:9:
   arch/x86//kernel/head64.c: In function 'x86_64_start_kernel':
>> include/linux/compiler.h:319:38: error: call to '__compiletime_assert_321' declared with attribute error: BUILD_BUG_ON failed: MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
                                         ^
   include/linux/compiler.h:299:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler.h:319:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:47:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:71:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
     ^~~~~~~~~~~~~~~~
>> arch/x86//kernel/head64.c:321:2: note: in expansion of macro 'BUILD_BUG_ON'
     BUILD_BUG_ON(MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE);
     ^~~~~~~~~~~~
>> include/linux/compiler.h:319:38: error: call to '__compiletime_assert_326' declared with attribute error: BUILD_BUG_ON failed: !(((MODULES_END - 1) & PGDIR_MASK) == (__START_KERNEL & PGDIR_MASK))
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
                                         ^
   include/linux/compiler.h:299:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler.h:319:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:47:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:71:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
     ^~~~~~~~~~~~~~~~
   arch/x86//kernel/head64.c:325:2: note: in expansion of macro 'BUILD_BUG_ON'
     BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
     ^~~~~~~~~~~~
--
   In file included from include/linux/init.h:5:0,
                    from arch/x86/kernel/head64.c:9:
   arch/x86/kernel/head64.c: In function 'x86_64_start_kernel':
>> include/linux/compiler.h:319:38: error: call to '__compiletime_assert_321' declared with attribute error: BUILD_BUG_ON failed: MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
                                         ^
   include/linux/compiler.h:299:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler.h:319:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:47:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:71:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
     ^~~~~~~~~~~~~~~~
   arch/x86/kernel/head64.c:321:2: note: in expansion of macro 'BUILD_BUG_ON'
     BUILD_BUG_ON(MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE);
     ^~~~~~~~~~~~
>> include/linux/compiler.h:319:38: error: call to '__compiletime_assert_326' declared with attribute error: BUILD_BUG_ON failed: !(((MODULES_END - 1) & PGDIR_MASK) == (__START_KERNEL & PGDIR_MASK))
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
                                         ^
   include/linux/compiler.h:299:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler.h:319:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:47:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:71:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
     ^~~~~~~~~~~~~~~~
   arch/x86/kernel/head64.c:325:2: note: in expansion of macro 'BUILD_BUG_ON'
     BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
     ^~~~~~~~~~~~

vim +/__compiletime_assert_321 +319 include/linux/compiler.h

9a8ab1c3 Daniel Santos 2013-02-21  305  
9a8ab1c3 Daniel Santos 2013-02-21  306  #define _compiletime_assert(condition, msg, prefix, suffix) \
9a8ab1c3 Daniel Santos 2013-02-21  307  	__compiletime_assert(condition, msg, prefix, suffix)
9a8ab1c3 Daniel Santos 2013-02-21  308  
9a8ab1c3 Daniel Santos 2013-02-21  309  /**
9a8ab1c3 Daniel Santos 2013-02-21  310   * compiletime_assert - break build and emit msg if condition is false
9a8ab1c3 Daniel Santos 2013-02-21  311   * @condition: a compile-time constant condition to check
9a8ab1c3 Daniel Santos 2013-02-21  312   * @msg:       a message to emit if condition is false
9a8ab1c3 Daniel Santos 2013-02-21  313   *
9a8ab1c3 Daniel Santos 2013-02-21  314   * In tradition of POSIX assert, this macro will break the build if the
9a8ab1c3 Daniel Santos 2013-02-21  315   * supplied condition is *false*, emitting the supplied error message if the
9a8ab1c3 Daniel Santos 2013-02-21  316   * compiler has support to do so.
9a8ab1c3 Daniel Santos 2013-02-21  317   */
9a8ab1c3 Daniel Santos 2013-02-21  318  #define compiletime_assert(condition, msg) \
9a8ab1c3 Daniel Santos 2013-02-21 @319  	_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
9a8ab1c3 Daniel Santos 2013-02-21  320  

:::::: The code at line 319 was first introduced by commit
:::::: 9a8ab1c39970a4938a72d94e6fd13be88a797590 bug.h, compiler.h: introduce compiletime_assert & BUILD_BUG_ON_MSG

:::::: TO: Daniel Santos <daniel.santos@pobox.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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             reply	other threads:[~2017-12-04 15:43 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-04 15:43 kbuild test robot [this message]
2017-12-04 17:19 ` [tip:WIP.x86/kpti 50/65] include/linux/compiler.h:319:38: error: call to '__compiletime_assert_321' declared with attribute error: BUILD_BUG_ON failed: MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE Thomas Gleixner
2017-12-05  3:29   ` Fengguang Wu

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