-ffreestanding -fno-builtin -Wall -std=gnu99 \
-Os -ffunction-sections -fdata-sections
+ifeq (${SANITIZE_UB},on)
+TF_CFLAGS += -fsanitize=undefined -fno-sanitize-recover
+endif
+ifeq (${SANITIZE_UB},trap)
+TF_CFLAGS += -fsanitize=undefined -fno-sanitize-recover \
+ -fsanitize-undefined-trap-on-error
+endif
+
GCC_V_OUTPUT := $(shell $(CC) -v 2>&1)
ifneq ($(findstring armlink,$(notdir $(LD))),)
BL_COMMON_SOURCES += lib/${ARCH}/armclang_printf.S
endif
+ifeq (${SANITIZE_UB},on)
+BL_COMMON_SOURCES += plat/common/ubsan.c
+endif
+
INCLUDES += -Iinclude \
-Iinclude/arch/${ARCH} \
-Iinclude/lib/cpus/${ARCH} \
$(eval $(call assert_numeric,ARM_ARCH_MINOR))
$(eval $(call assert_numeric,BRANCH_PROTECTION))
+ifeq ($(filter $(SANITIZE_UB), on off trap),)
+ $(error "Invalid value for SANITIZE_UB: can be one of on, off, trap")
+endif
+
################################################################################
# Add definitions to the cpp preprocessor based on the current build options.
# This is done after including the platform specific makefile to allow the
$(eval $(call add_define,BL2_AT_EL3))
$(eval $(call add_define,BL2_IN_XIP_MEM))
+ifeq (${SANITIZE_UB},trap)
+ $(eval $(call add_define,MONITOR_TRAPS))
+endif
+
# Define the EL3_PAYLOAD_BASE flag only if it is provided.
ifdef EL3_PAYLOAD_BASE
$(eval $(call add_define,EL3_PAYLOAD_BASE))