@@ -735,14 +735,14 @@ 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
@@ -179,6 +179,7 @@ config DEBUG_INFO_REDUCED
config DEBUG_INFO_SPLIT
bool "Produce split debuginfo in .dwo files"
depends on DEBUG_INFO
+ depends on $(cc-option,-gsplit-dwarf)
help
Generate debug info into separate .dwo files. This significantly
reduces the build directory size for builds with DEBUG_INFO,
@@ -194,6 +195,7 @@ config DEBUG_INFO_SPLIT
config DEBUG_INFO_DWARF4
bool "Generate dwarf4 debuginfo"
depends on DEBUG_INFO
+ depends on $(cc-option,-gdwarf-4)
help
Generate dwarf4 debug info. This requires recent versions
of gcc and gdb. It makes the debug information larger.
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 <yamada.masahiro@socionext.com> --- Makefile | 4 ++-- lib/Kconfig.debug | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-)