diff options
| -rw-r--r-- | Makefile | 4 | ||||
| -rw-r--r-- | lib/Kconfig.debug | 13 |
2 files changed, 17 insertions, 0 deletions
@@ -557,6 +557,10 @@ KBUILD_CFLAGS += -g KBUILD_AFLAGS += -gdwarf-2 endif +ifdef CONFIG_DEBUG_INFO_REDUCED +KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) +endif + ifdef CONFIG_FUNCTION_TRACER KBUILD_CFLAGS += -pg endif diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 25c3ed594c54..2af5d84ec824 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -595,6 +595,19 @@ config DEBUG_INFO If unsure, say N. +config DEBUG_INFO_REDUCED + bool "Reduce debugging information" + depends on DEBUG_INFO + help + If you say Y here gcc is instructed to generate less debugging + information for structure types. This means that tools that + need full debugging information (like kgdb or systemtap) won't + be happy. But if you merely need debugging information to + resolve line numbers there is no loss. Advantage is that + build directory object sizes shrink dramatically over a full + DEBUG_INFO build and compile times are reduced too. + Only works with newer gcc versions. + config DEBUG_VM bool "Debug VM" depends on DEBUG_KERNEL |