1 files changed, 15 insertions, 0 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 7cfcc1b8e101..910355da9d14 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -143,6 +143,21 @@ config DEBUG_INFO_REDUCED
           DEBUG_INFO build and compile times are reduced too.
           Only works with newer gcc versions.
 
+config DEBUG_INFO_SPLIT
+        bool "Produce split debuginfo in .dwo files"
+        depends on DEBUG_INFO
+        help
+          Generate debug info into separate .dwo files. This significantly
+          reduces the build directory size for builds with DEBUG_INFO,
+          because it stores the information only once on disk in .dwo
+          files instead of multiple times in object files and executables.
+          In addition the debug information is also compressed.
+
+          Requires recent gcc (4.7+) and recent gdb/binutils.
+          Any tool that packages or reads debug information would need
+          to know about the .dwo files and include them.
+          Incompatible with older versions of ccache.
+
 config ENABLE_WARN_DEPRECATED
         bool "Enable __deprecated logic"
         default y