X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/0fd7b2cf09c9088646080a911f0840348e566577..c9db3f0aa9364284158c208740cce3bb73f72f7e:/LUFA/Build/lufa_build.mk

diff --git a/LUFA/Build/lufa_build.mk b/LUFA/Build/lufa_build.mk
index 1bdfa1d72..9f1125d99 100644
--- a/LUFA/Build/lufa_build.mk
+++ b/LUFA/Build/lufa_build.mk
@@ -1,6 +1,6 @@
 #
 #             LUFA Library
-#     Copyright (C) Dean Camera, 2014.
+#     Copyright (C) Dean Camera, 2015.
 #
 #  dean [at] fourwalledcubicle [dot] com
 #           www.lufa-lib.org
@@ -199,6 +199,12 @@ ifeq ($(LINKER_RELAXATIONS), Y)
 BASE_CC_FLAGS += -mrelax
 endif
 
+# This flag is required for bootloaders as GCC will emit invalid jump table
+# assembly code for devices with large amounts of flash; the jump table target
+# is extracted from FLASH without using the correct ELPM instruction, resulting
+# in a pseudo-random jump target.
+BASE_CC_FLAGS += -fno-jump-tables
+
 # Additional language specific compiler flags
 BASE_C_FLAGS   := -x c -O$(OPTIMIZATION) -std=$(C_STANDARD) -Wstrict-prototypes
 BASE_CPP_FLAGS := -x c++ -O$(OPTIMIZATION) -std=$(CPP_STANDARD)