BUILD: Use split-dwarf debug symbol files by default, when available

This should improve linker time as well as reduce the size of the
built binaries (though this does not affect runtime memory usage
since the debug segments are not loaded into memory except by a
debugger) whilst still giving debug information.

1 files changed, 7 insertions, 0 deletions

diff --git a/rules.mk b/rules.mk
index 0963a46e3c..1324874ef3 100644
--- a/rules.mk
+++ b/rules.mk
@@ -55,6 +55,13 @@ PLUGIN:=
 # Add to "plugins" target
 plugins: $(PLUGIN-$(MODULE))
 
+ifdef SPLIT_DWARF
+$(PLUGIN-$(MODULE)).dwp: $(PLUGIN-$(MODULE))
+	$(QUIET_DWP)$(DWP) -e $(PLUGIN-$(MODULE))
+
+plugins: $(PLUGIN-$(MODULE)).dwp
+endif
+
 # Add to the PLUGINS variable
 PLUGINS += $(PLUGIN-$(MODULE))