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kbuild: split DEBUG_CFLAGS out to scripts/Makefile.debug

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To slim down the top Makefile, split out the code block surrounded by
ifdef CONFIG_DEBUG_INFO ... endif.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesauniers@google.com>
Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com>
This commit is contained in:
Masahiro Yamada
2021-10-12 12:25:03 +09:00
parent 3510c5cf42
commit 6947fd96ae
2 changed files with 34 additions and 38 deletions
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33
scripts/Makefile.debug Normal file
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@@ -0,0 +1,33 @@
DEBUG_CFLAGS :=
ifdef CONFIG_DEBUG_INFO_SPLIT
DEBUG_CFLAGS += -gsplit-dwarf
else
DEBUG_CFLAGS += -g
endif
ifndef CONFIG_AS_IS_LLVM
KBUILD_AFLAGS += -Wa,-gdwarf-2
endif
ifndef CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
dwarf-version-$(CONFIG_DEBUG_INFO_DWARF4) := 4
dwarf-version-$(CONFIG_DEBUG_INFO_DWARF5) := 5
DEBUG_CFLAGS += -gdwarf-$(dwarf-version-y)
endif
ifdef CONFIG_DEBUG_INFO_REDUCED
DEBUG_CFLAGS += -fno-var-tracking
ifdef CONFIG_CC_IS_GCC
DEBUG_CFLAGS += -femit-struct-debug-baseonly
endif
endif
ifdef CONFIG_DEBUG_INFO_COMPRESSED
DEBUG_CFLAGS += -gz=zlib
KBUILD_AFLAGS += -gz=zlib
KBUILD_LDFLAGS += --compress-debug-sections=zlib
endif
KBUILD_CFLAGS += $(DEBUG_CFLAGS)
export DEBUG_CFLAGS