Provides a way to configure debug info level (-glevel). Debug level 3 includes extra information such as macro definitions. With level 3 enabled it's possible to expand macros right from the debugging session in gdb simplifying debugging when complicated macros involved. The default level is set to 2 to not change the default build behavior. Signed-off-by: Dmitrii Bundin <dmitrii.bundin.a@xxxxxxxxx> --- Changes in v2: https://lore.kernel.org/all/20220804223504.4739-1-dmitrii.bundin.a@xxxxxxxxx/ - Replace hardcoded -g3 with a configurable debug info level lib/Kconfig.debug | 11 +++++++++++ scripts/Makefile.debug | 2 +- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 2e24db4bff19..a17c12c20290 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -304,6 +304,17 @@ config DEBUG_INFO_REDUCED DEBUG_INFO build and compile times are reduced too. Only works with newer gcc versions. +config DEBUG_INFO_LEVEL + int "Debug info level" + range 0 3 + default "2" + help + Sets the level of how much debug information to generate (-glevel). + Level 1 produces minimal debug information without including information + about local variables. Level 3 includes extra information like macro + definitions. Setting up level 3 will require significantly more disk + space and increase built time. Level 0 produces no debug information. + config DEBUG_INFO_COMPRESSED bool "Compressed debugging information" depends on $(cc-option,-gz=zlib) diff --git a/scripts/Makefile.debug b/scripts/Makefile.debug index 9f39b0130551..28beffc42e71 100644 --- a/scripts/Makefile.debug +++ b/scripts/Makefile.debug @@ -3,7 +3,7 @@ DEBUG_CFLAGS := ifdef CONFIG_DEBUG_INFO_SPLIT DEBUG_CFLAGS += -gsplit-dwarf else -DEBUG_CFLAGS += -g +DEBUG_CFLAGS += -g$(CONFIG_DEBUG_INFO_LEVEL) endif ifndef CONFIG_AS_IS_LLVM -- 2.17.1
