Hi Nick, I am building my kernel (ppc32) with both CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y and CONFIG_UBSAN=y. This leads to ~316428 warnings such as:
+ 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_data395' from `init/main.o' being placed in section `.data..Lubsan_data395'. powerpc-linux-gnu-ld: warning: orphan section `.data..Lubsan_data396' from `init/main.o' being placed in section `.data..Lubsan_data396'. ... What would you recommend to reduce the number of warnings produced ? I tried `--warn-once` but that only affect undefined symbols. Thanks
