2 files changed, 17 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index dceb4f19f786..e1dfb90c6092 100644
--- a/Makefile
+++ b/Makefile
@@ -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