1 files changed, 6 insertions, 5 deletions

diff --git a/Makefile b/Makefile
index ea63667617f3..46e1c9d03d51 100644
--- a/Makefile
+++ b/Makefile
@@ -330,6 +330,7 @@ AFLAGS_MODULE   = $(MODFLAGS)
 LDFLAGS_MODULE  =
 CFLAGS_KERNEL   =
 AFLAGS_KERNEL   =
+CFLAGS_GCOV     = -fprofile-arcs -ftest-coverage
 
 
 # Use LINUXINCLUDE when you must reference the include/ directory.
@@ -356,7 +357,7 @@ export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE
 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
 
 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
-export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
+export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
 
 # When compiling out-of-tree modules, put MODVERDIR in the module
@@ -1216,8 +1217,8 @@ clean: archclean $(clean-dirs)
                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
                 -o -name '*.symtypes' -o -name 'modules.order' \
-                -o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \
-                -type f -print | xargs rm -f
+                -o -name 'Module.markers' -o -name '.tmp_*.o.*' \
+                -o -name '*.gcno' \) -type f -print | xargs rm -f
 
 # mrproper - Delete all generated files, including .config
 #
@@ -1421,8 +1422,8 @@ clean: $(clean-dirs)
         $(call cmd,rmfiles)
         @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \
                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-                -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
-                -type f -print | xargs rm -f
+                -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
+                -o -name '*.gcno' \) -type f -print | xargs rm -f
 
 help:
         @echo  '  Building external modules.'