On Sat, Jun 13, 2020 at 4:17 AM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > > Hi Masahiro, > > when I build with LLVM_IAS=1 I want to force DWARF-4. > > CONFIG_DEBUG_INFO_DWARF4=y sets "DEBUG_CFLAGS += -gdwarf-4". > > I tried: > > [ Makefile ] > > ifdef CONFIG_DEBUG_INFO > ifdef CONFIG_DEBUG_INFO_SPLIT > DEBUG_CFLAGS += -gsplit-dwarf > else > DEBUG_CFLAGS += -g > endif > ifndef LLVM_IAS > KBUILD_AFLAGS += -Wa,-gdwarf-2 > endif > endif > ifdef CONFIG_DEBUG_INFO_DWARF4 > DEBUG_CFLAGS += -gdwarf-4 > ifdef LLVM_IAS > KBUILD_AFLAGS += -Wa,-gdwarf-4 > endif > endif > > If I set LLVM_IAS=1 ---> CONFIG_DEBUG_INFO_DWARF4=y shall be set automatically. > > Dunno if "KBUILD_AFLAGS += -Wa,-gdwarf-4" is a good idea. > > "KBUILD_AFLAGS += -Wa,-gdwarf-2" is known to break with LLVM_IAS=1. > > I am lost in ifdef-eries... > > Any cool ideas? Sorry, I am not familiar enough with dwarf to understand these flags... > > Regards, > - Sedat - -- Best Regards Masahiro Yamada
