* Re: powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. [not found] <201711102336.rokM2O1G%fengguang.wu@intel.com> @ 2017-11-11 8:45 ` Nicholas Piggin 2017-11-13 15:14 ` Masahiro Yamada 0 siblings, 1 reply; 3+ messages in thread From: Nicholas Piggin @ 2017-11-11 8:45 UTC (permalink / raw) To: kbuild test robot; +Cc: kbuild-all, linux-kernel, Masahiro Yamada, linuxppc-dev On Fri, 10 Nov 2017 23:41:49 +0800 kbuild test robot <fengguang.wu@intel.com> wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 1c9dbd4615fd751e5e0b99807a3c7c8612e28e20 > commit: cb87481ee89dbd6609e227afbf64900fb4e5c930 kbuild: linker script do not match C names unless LD_DEAD_CODE_DATA_ELIMINATION is configured > date: 3 months ago > config: powerpc-fsp2_defconfig (attached as .config) > compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 > reproduce: > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout cb87481ee89dbd6609e227afbf64900fb4e5c930 > # save the attached .config to linux build tree > make.cross ARCH=powerpc > > All warnings (new ones prefixed by >>): > > >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. > >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. > >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. Okay this is not caused by the above patch, it was just hiding it. This should do the trick I think: -- powerpc/32: Add .data.rel* sections explicitly Match powerpc/64 and include .data.rel* input sections in the .data output section explicitly. This should solve the warning: powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/kernel/vmlinux.lds.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 0494e1566ee2..51e4ec92ade1 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -264,6 +264,7 @@ SECTIONS #ifdef CONFIG_PPC32 .data : AT(ADDR(.data) - LOAD_OFFSET) { DATA_DATA + *(.data.rel*) *(.sdata) *(.sdata2) *(.got.plt) *(.got) -- 2.15.0 ^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. 2017-11-11 8:45 ` powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro' Nicholas Piggin @ 2017-11-13 15:14 ` Masahiro Yamada 2017-11-14 10:17 ` Michael Ellerman 0 siblings, 1 reply; 3+ messages in thread From: Masahiro Yamada @ 2017-11-13 15:14 UTC (permalink / raw) To: Nicholas Piggin Cc: kbuild test robot, kbuild-all, Linux Kernel Mailing List, linuxppc-dev Hi Nicholas, 2017-11-11 17:45 GMT+09:00 Nicholas Piggin <npiggin@gmail.com>: > On Fri, 10 Nov 2017 23:41:49 +0800 > kbuild test robot <fengguang.wu@intel.com> wrote: > >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> head: 1c9dbd4615fd751e5e0b99807a3c7c8612e28e20 >> commit: cb87481ee89dbd6609e227afbf64900fb4e5c930 kbuild: linker script do not match C names unless LD_DEAD_CODE_DATA_ELIMINATION is configured >> date: 3 months ago >> config: powerpc-fsp2_defconfig (attached as .config) >> compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 >> reproduce: >> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross >> chmod +x ~/bin/make.cross >> git checkout cb87481ee89dbd6609e227afbf64900fb4e5c930 >> # save the attached .config to linux build tree >> make.cross ARCH=powerpc >> >> All warnings (new ones prefixed by >>): >> >> >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. >> >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. >> >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. > > Okay this is not caused by the above patch, it was just hiding it. > This should do the trick I think: > -- > powerpc/32: Add .data.rel* sections explicitly > > Match powerpc/64 and include .data.rel* input sections in the .data output > section explicitly. > > This should solve the warning: > > powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. > > Reported-by: kbuild test robot <fengguang.wu@intel.com> > Signed-off-by: Nicholas Piggin <npiggin@gmail.com> I think this will go to the PPC tree. I will not touch this patch, but if necessary, please feel free to add Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com> > --- > arch/powerpc/kernel/vmlinux.lds.S | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S > index 0494e1566ee2..51e4ec92ade1 100644 > --- a/arch/powerpc/kernel/vmlinux.lds.S > +++ b/arch/powerpc/kernel/vmlinux.lds.S > @@ -264,6 +264,7 @@ SECTIONS > #ifdef CONFIG_PPC32 > .data : AT(ADDR(.data) - LOAD_OFFSET) { > DATA_DATA > + *(.data.rel*) > *(.sdata) > *(.sdata2) > *(.got.plt) *(.got) > -- > 2.15.0 > -- Best Regards Masahiro Yamada ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. 2017-11-13 15:14 ` Masahiro Yamada @ 2017-11-14 10:17 ` Michael Ellerman 0 siblings, 0 replies; 3+ messages in thread From: Michael Ellerman @ 2017-11-14 10:17 UTC (permalink / raw) To: Masahiro Yamada, Nicholas Piggin Cc: kbuild test robot, linuxppc-dev, kbuild-all, Linux Kernel Mailing List Masahiro Yamada <yamada.masahiro@socionext.com> writes: > Hi Nicholas, > > > 2017-11-11 17:45 GMT+09:00 Nicholas Piggin <npiggin@gmail.com>: >> On Fri, 10 Nov 2017 23:41:49 +0800 >> kbuild test robot <fengguang.wu@intel.com> wrote: >> >>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >>> head: 1c9dbd4615fd751e5e0b99807a3c7c8612e28e20 >>> commit: cb87481ee89dbd6609e227afbf64900fb4e5c930 kbuild: linker script do not match C names unless LD_DEAD_CODE_DATA_ELIMINATION is configured >>> date: 3 months ago >>> config: powerpc-fsp2_defconfig (attached as .config) >>> compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 >>> reproduce: >>> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross >>> chmod +x ~/bin/make.cross >>> git checkout cb87481ee89dbd6609e227afbf64900fb4e5c930 >>> # save the attached .config to linux build tree >>> make.cross ARCH=powerpc >>> >>> All warnings (new ones prefixed by >>): >>> >>> >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. >>> >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. >>> >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. >> >> Okay this is not caused by the above patch, it was just hiding it. >> This should do the trick I think: >> -- >> powerpc/32: Add .data.rel* sections explicitly >> >> Match powerpc/64 and include .data.rel* input sections in the .data output >> section explicitly. >> >> This should solve the warning: >> >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. >> >> Reported-by: kbuild test robot <fengguang.wu@intel.com> >> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> > > > I think this will go to the PPC tree. Yeah I can take it. > I will not touch this patch, but > if necessary, please feel free to add > > Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com> Thanks. cheers ^ permalink raw reply [flat|nested] 3+ messages in thread
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2017-11-11 8:45 ` powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro' Nicholas Piggin
2017-11-13 15:14 ` Masahiro Yamada
2017-11-14 10:17 ` Michael Ellerman
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