When compiling with -g3 option and debugging with gdb it provides some extra abilities like macro expand, info macro etc... It's sometimes useful to unerstand behavior of complicated macros. Signed-off-by: Dmitrii Bundin <dmitrii.bundin.a@xxxxxxxxx> --- lib/Kconfig.debug | 9 +++++++++ scripts/Makefile.debug | 2 ++ 2 files changed, 11 insertions(+) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 2e24db4bff19..1e8bef3e2a95 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -304,6 +304,15 @@ config DEBUG_INFO_REDUCED DEBUG_INFO build and compile times are reduced too. Only works with newer gcc versions. +config DEBUG_INFO_MAXLEVEL + bool "Maximum debug information level" + depends on !DEBUG_INFO_REDUCED + default n + help + Sets the maximum level of debug information compilers may generate + (-g3). Enabling this option will require significantly more disk space + and increase built time, but it's useful for debugging purposes. + 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..7e1d8beecfc4 100644 --- a/scripts/Makefile.debug +++ b/scripts/Makefile.debug @@ -2,6 +2,8 @@ DEBUG_CFLAGS := ifdef CONFIG_DEBUG_INFO_SPLIT DEBUG_CFLAGS += -gsplit-dwarf +else ifdef CONFIG_DEBUG_INFO_MAXLEVEL +DEBUG_CFLAGS += -g3 else DEBUG_CFLAGS += -g endif -- 2.17.1
