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Message-ID: <CAJcbSZH7nyLuSmE2imEdk-VzwZcLw4P9T3jZEE2EiRUVPEbL1g@mail.gmail.com>
Date: Fri, 17 Feb 2017 08:00:19 -0800
From: Thomas Garnier <thgarnie@...gle.com>
To: kbuild test robot <lkp@...el.com>
Cc: kbuild-all@...org, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
"H . Peter Anvin" <hpa@...or.com>, Jonathan Corbet <corbet@....net>, Kees Cook <keescook@...omium.org>,
Lorenzo Stoakes <lstoakes@...il.com>, Juergen Gross <jgross@...e.com>,
Andy Lutomirski <luto@...capital.net>, "Rafael J . Wysocki" <rjw@...ysocki.net>, Len Brown <len.brown@...el.com>,
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Ard Biesheuvel <ard.biesheuvel@...aro.org>, Boris Ostrovsky <boris.ostrovsky@...cle.com>,
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Kernel Hardening <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH v4 1/4] x86/mm: Adapt MODULES_END based on Fixmap section size
I will send an update patch on this thread to fix the fixmap dependencies.
On Thu, Feb 16, 2017 at 4:45 PM, kbuild test robot <lkp@...el.com> wrote:
> Hi Thomas,
>
> [auto build test ERROR on next-20170216]
> [also build test ERROR on v4.10-rc8]
> [cannot apply to tip/x86/core kvm/linux-next tip/auto-latest v4.9-rc8
> v4.9-rc7 v4.9-rc6]
> [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/Thomas-Garnier/
> x86-mm-Adapt-MODULES_END-based-on-Fixmap-section-size/20170217-072759
> config: x86_64-randconfig-s4-02170325 (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All errors (new ones prefixed by >>):
>
> In file included from arch/x86/include/asm/pgtable_types.h:240:0,
> from arch/x86/include/asm/paravirt_types.h:44,
> from arch/x86/include/asm/ptrace.h:71,
> from arch/x86/include/asm/math_emu.h:4,
> from arch/x86/include/asm/processor.h:11,
> from arch/x86/include/asm/cpufeature.h:4,
> from arch/x86/include/asm/thread_info.h:52,
> from include/linux/thread_info.h:25,
> from arch/x86/include/asm/preempt.h:6,
> from include/linux/preempt.h:59,
> from include/linux/spinlock.h:50,
> from include/linux/wait.h:8,
> from include/linux/fs.h:5,
> from include/linux/debugfs.h:18,
> from arch/x86/mm/dump_pagetables.c:15:
> >> arch/x86/include/asm/pgtable_64_types.h:71:23: error: implicit
> declaration of function '__fix_to_virt' [-Werror=implicit-function-
> declaration]
> #define MODULES_END __fix_to_virt(__end_of_fixed_addresses + 1)
> ^
> arch/x86/mm/dump_pagetables.c:87:4: note: in expansion of macro
> 'MODULES_END'
> { MODULES_END, "End Modules" },
> ^~~~~~~~~~~
> arch/x86/include/asm/pgtable_64_types.h:71:37: error:
> '__end_of_fixed_addresses' undeclared here (not in a function)
> #define MODULES_END __fix_to_virt(__end_of_fixed_addresses + 1)
> ^
> arch/x86/mm/dump_pagetables.c:87:4: note: in expansion of macro
> 'MODULES_END'
> { MODULES_END, "End Modules" },
> ^~~~~~~~~~~
> cc1: some warnings being treated as errors
>
> vim +/__fix_to_virt +71 arch/x86/include/asm/pgtable_64_types.h
>
> 65 #define VMALLOC_START __VMALLOC_BASE
> 66 #define VMEMMAP_START __VMEMMAP_BASE
> 67 #endif /* CONFIG_RANDOMIZE_MEMORY */
> 68 #define VMALLOC_END (VMALLOC_START + _AC((VMALLOC_SIZE_TB <<
> 40) - 1, UL))
> 69 #define MODULES_VADDR (__START_KERNEL_map + KERNEL_IMAGE_SIZE)
> 70 /* The module sections ends with the start of the fixmap */
> > 71 #define MODULES_END __fix_to_virt(__end_of_fixed_addresses + 1)
> 72 #define MODULES_LEN (MODULES_END - MODULES_VADDR)
> 73 #define ESPFIX_PGD_ENTRY _AC(-2, UL)
> 74 #define ESPFIX_BASE_ADDR (ESPFIX_PGD_ENTRY << PGDIR_SHIFT)
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology
> Center
> https://lists.01.org/pipermail/kbuild-all Intel
> Corporation
>
--
Thomas
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