LLVM_IAS=1 and DWARF-4

[Sedat Dilek <sedat.dilek@xxxxxxxxx>]

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?

Regards,
- Sedat -