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kbuild: move -gsplit-dwarf, -gdwarf-4 option tests to Kconfig

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CONFIG_DEBUG_INFO_SPLIT and CONFIG_DEBUG_INFO_DWARF4 enable extra
dwarf options if supported. You never know if they are really enabled
since Makefile may silently turn them off.

The actual behavior will match to the kernel configuration by
testing those compiler flags in the Kconfig stage.

Signed-off-by: Masahiro Yamada <[email protected]>
This commit is contained in:
Masahiro Yamada 2019-02-22 16:56:09 +09:00
commit 9d93744400
2 changed files with 4 additions and 2 deletions
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4
Makefile
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@ -742,14 +742,14 @@ DEBUG_CFLAGS := $(call cc-option, -fno-var-tracking-assignments)
ifdef CONFIG_DEBUG_INFO
ifdef CONFIG_DEBUG_INFO_SPLIT
DEBUG_CFLAGS += $(call cc-option, -gsplit-dwarf, -g)
DEBUG_CFLAGS += -gsplit-dwarf
else
DEBUG_CFLAGS += -g
endif
KBUILD_AFLAGS += -Wa,-gdwarf-2
endif
ifdef CONFIG_DEBUG_INFO_DWARF4
DEBUG_CFLAGS += $(call cc-option, -gdwarf-4,)
DEBUG_CFLAGS += -gdwarf-4
endif
ifdef CONFIG_DEBUG_INFO_REDUCED