On Fri, 10 Nov 2017 23:41:49 +0800 kbuild test robot <fengguang...@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...@intel.com> Signed-off-by: Nicholas Piggin <npig...@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
