From: Randy Dunlap <rdunlap@infradead.org>
To: kernel test robot <lkp@intel.com>,
Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
Michael Ellerman <mpe@ellerman.id.au>,
PowerPC <linuxppc-dev@lists.ozlabs.org>
Subject: Re: mmu.c:undefined reference to `patch__hash_page_A0'
Date: Sat, 17 Apr 2021 17:02:04 -0700 [thread overview]
Message-ID: <06227600-c5c5-3da7-a495-ae0b0849b62d@infradead.org> (raw)
In-Reply-To: <202102271820.WlZCxtzY-lkp@intel.com>
HI--
I no longer see this build error.
However:
On 2/27/21 2:24 AM, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 3fb6d0e00efc958d01c2f109c8453033a2d96796
> commit: 259149cf7c3c6195e6199e045ca988c31d081cab powerpc/32s: Only build hash code when CONFIG_PPC_BOOK3S_604 is selected
> date: 4 weeks ago
> config: powerpc64-randconfig-r013-20210227 (attached as .config)
ktr/lkp, this is a PPC32 .config file that is attached, not PPC64.
Also:
> compiler: powerpc-linux-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=259149cf7c3c6195e6199e045ca988c31d081cab
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout 259149cf7c3c6195e6199e045ca988c31d081cab
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>):
>
> powerpc-linux-ld: arch/powerpc/mm/book3s32/mmu.o: in function `MMU_init_hw_patch':
>>> mmu.c:(.init.text+0x75e): undefined reference to `patch__hash_page_A0'
>>> powerpc-linux-ld: mmu.c:(.init.text+0x76a): undefined reference to `patch__hash_page_A0'
>>> powerpc-linux-ld: mmu.c:(.init.text+0x776): undefined reference to `patch__hash_page_A1'
> powerpc-linux-ld: mmu.c:(.init.text+0x782): undefined reference to `patch__hash_page_A1'
>>> powerpc-linux-ld: mmu.c:(.init.text+0x78e): undefined reference to `patch__hash_page_A2'
> powerpc-linux-ld: mmu.c:(.init.text+0x79a): undefined reference to `patch__hash_page_A2'
>>> powerpc-linux-ld: mmu.c:(.init.text+0x7aa): undefined reference to `patch__hash_page_B'
> powerpc-linux-ld: mmu.c:(.init.text+0x7b6): undefined reference to `patch__hash_page_B'
>>> powerpc-linux-ld: mmu.c:(.init.text+0x7c2): undefined reference to `patch__hash_page_C'
> powerpc-linux-ld: mmu.c:(.init.text+0x7ce): undefined reference to `patch__hash_page_C'
>>> powerpc-linux-ld: mmu.c:(.init.text+0x7da): undefined reference to `patch__flush_hash_A0'
> powerpc-linux-ld: mmu.c:(.init.text+0x7e6): undefined reference to `patch__flush_hash_A0'
>>> powerpc-linux-ld: mmu.c:(.init.text+0x7f2): undefined reference to `patch__flush_hash_A1'
> powerpc-linux-ld: mmu.c:(.init.text+0x7fe): undefined reference to `patch__flush_hash_A1'
>>> powerpc-linux-ld: mmu.c:(.init.text+0x80a): undefined reference to `patch__flush_hash_A2'
> powerpc-linux-ld: mmu.c:(.init.text+0x816): undefined reference to `patch__flush_hash_A2'
>>> powerpc-linux-ld: mmu.c:(.init.text+0x83e): undefined reference to `patch__flush_hash_B'
> powerpc-linux-ld: mmu.c:(.init.text+0x84e): undefined reference to `patch__flush_hash_B'
> powerpc-linux-ld: arch/powerpc/mm/book3s32/mmu.o: in function `update_mmu_cache':
>>> mmu.c:(.text.update_mmu_cache+0xa0): undefined reference to `add_hash_page'
I do see this build error:
powerpc-linux-ld: arch/powerpc/boot/wrapper.a(decompress.o): in function `partial_decompress':
decompress.c:(.text+0x1f0): undefined reference to `__decompress'
when either
CONFIG_KERNEL_LZO=y
or
CONFIG_KERNEL_LZMA=y
but the build succeeds when either
CONFIG_KERNEL_GZIP=y
or
CONFIG_KERNEL_XZ=y
I guess that is due to arch/powerpc/boot/decompress.c doing this:
#ifdef CONFIG_KERNEL_GZIP
# include "decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_XZ
# include "xz_config.h"
# include "../../../lib/decompress_unxz.c"
#endif
It would be nice to require one of KERNEL_GZIP or KERNEL_XZ
to be set/enabled (maybe unless a uImage is being built?).
ta.
--
~Randy
next prev parent reply other threads:[~2021-04-18 0:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-27 10:24 mmu.c:undefined reference to `patch__hash_page_A0' kernel test robot
2021-04-18 0:02 ` Randy Dunlap [this message]
2021-04-18 10:43 ` Christophe Leroy
2021-04-18 17:15 ` Randy Dunlap
2021-04-18 18:35 ` Christophe Leroy
2021-04-21 8:43 ` Christophe Leroy
2021-04-22 2:16 ` Randy Dunlap
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