On Wed, 2018-10-31 at 12:31:56 UTC, Mathieu Malaterre wrote: > When both `CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y` and `CONFIG_UBSAN=y` > are set, link step typically produce numberous warnings about orphan > section: > > + powerpc-linux-gnu-ld -EB -m elf32ppc -Bstatic --orphan-handling=warn > --build-id --gc-sections -X -o .tmp_vmlinux1 -T > ./arch/powerpc/kernel/vmlinux.lds --who > le-archive built-in.a --no-whole-archive --start-group lib/lib.a --end-group > powerpc-linux-gnu-ld: warning: orphan section `.data..Lubsan_data393' from > `init/main.o' being placed in section `.data..Lubsan_data393'. > powerpc-linux-gnu-ld: warning: orphan section `.data..Lubsan_data394' from > `init/main.o' being placed in section `.data..Lubsan_data394'. > ... > powerpc-linux-gnu-ld: warning: orphan section `.data..Lubsan_type11' from > `init/main.o' being placed in section `.data..Lubsan_type11'. > powerpc-linux-gnu-ld: warning: orphan section `.data..Lubsan_type12' from > `init/main.o' being placed in section `.data..Lubsan_type12'. > ... > > This commit remove those warnings produced at W=1. > > Link: > https://www.mail-archive.com/[email protected]/msg135407.html > Suggested-by: Nicholas Piggin <[email protected]> > Signed-off-by: Mathieu Malaterre <[email protected]>
Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/beba24ac59133cb36ecd03f9af9ccb cheers
