build system: add PIE build option

1 files changed, 3 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index aad67a1a8..308ea42cd 100644
--- a/Makefile
+++ b/Makefile
@@ -315,6 +315,8 @@ AFLAGS_KERNEL	=
 # Use LINUXINCLUDE when you must reference the include/ directory.
 # Needed to be compatible with the O= option
 CFLAGS          := $(CFLAGS)
+# Added only to final link stage of busybox binary
+CFLAGS_busybox  := $(CFLAGS_busybox)
 CPPFLAGS        := $(CPPFLAGS)
 AFLAGS          := $(AFLAGS)
 LDFLAGS         := $(LDFLAGS)
@@ -580,7 +582,7 @@ quiet_cmd_busybox__ ?= LINK    $@
       cmd_busybox__ ?= $(srctree)/scripts/trylink \
       "$@" \
       "$(CC)" \
-      "$(CFLAGS)" \
+      "$(CFLAGS) $(CFLAGS_busybox)" \
       "$(LDFLAGS) $(EXTRA_LDFLAGS)" \
       "$(core-y)" \
       "$(libs-y)" \