Merge changes I635cf82e,Iee3b4e0d into integration

* changes:
  Makefile: Fix ${FIP_NAME} to be rebuilt only when needed
  Makefile: Do not mark file targets as .PHONY target

Makefile

@@ -1245,8 +1245,7 @@ checkpatch:		locate-checkpatch
 
 certtool: ${CRTTOOL}
 
-.PHONY: ${CRTTOOL}
-${CRTTOOL}:
+${CRTTOOL}: FORCE
 	${Q}${MAKE} PLAT=${PLAT} USE_TBBR_DEFS=${USE_TBBR_DEFS} COT=${COT} OPENSSL_DIR=${OPENSSL_DIR} CRTTOOL=${CRTTOOL} --no-print-directory -C ${CRTTOOLPATH}
 	@${ECHO_BLANK_LINE}
 	@echo "Built $@ successfully"
@@ -1262,6 +1261,7 @@ certificates: ${CRT_DEPS} ${CRTTOOL}
 endif
 
 ${BUILD_PLAT}/${FIP_NAME}: ${FIP_DEPS} ${FIPTOOL}
+	$(eval ${CHECK_FIP_CMD})
 	${Q}${FIPTOOL} create ${FIP_ARGS} $@
 	${Q}${FIPTOOL} info $@
 	@${ECHO_BLANK_LINE}
@@ -1278,6 +1278,7 @@ fwu_certificates: ${FWU_CRT_DEPS} ${CRTTOOL}
 endif
 
 ${BUILD_PLAT}/${FWU_FIP_NAME}: ${FWU_FIP_DEPS} ${FIPTOOL}
+	$(eval ${CHECK_FWU_FIP_CMD})
 	${Q}${FIPTOOL} create ${FWU_FIP_ARGS} $@
 	${Q}${FIPTOOL} info $@
 	@${ECHO_BLANK_LINE}
@@ -1288,8 +1289,7 @@ fiptool: ${FIPTOOL}
 fip: ${BUILD_PLAT}/${FIP_NAME}
 fwu_fip: ${BUILD_PLAT}/${FWU_FIP_NAME}
 
-.PHONY: ${FIPTOOL}
-${FIPTOOL}:
+${FIPTOOL}: FORCE
 	@${ECHO_BLANK_LINE}
 	@echo "Building $@"
 ifdef UNIX_MK
@@ -1302,12 +1302,10 @@ endif
 	@${ECHO_BLANK_LINE}
 
 sptool: ${SPTOOL}
-.PHONY: ${SPTOOL}
-${SPTOOL}:
+${SPTOOL}: FORCE
 	${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" SPTOOL=${SPTOOL} --no-print-directory -C ${SPTOOLPATH}
 
-.PHONY: libraries
-romlib.bin: libraries
+romlib.bin: libraries FORCE
 	${Q}${MAKE} PLAT_DIR=${PLAT_DIR} BUILD_PLAT=${BUILD_PLAT} ENABLE_BTI=${ENABLE_BTI} ARM_ARCH_MINOR=${ARM_ARCH_MINOR} INCLUDES='${INCLUDES}' DEFINES='${DEFINES}' --no-print-directory -C ${ROMLIBPATH} all
 
 # Call print_memory_map tool
@@ -1320,8 +1318,7 @@ doc:
 
 enctool: ${ENCTOOL}
 
-.PHONY: ${ENCTOOL}
-${ENCTOOL}:
+${ENCTOOL}: FORCE
 	${Q}${MAKE} PLAT=${PLAT} BUILD_INFO=0 OPENSSL_DIR=${OPENSSL_DIR} ENCTOOL=${ENCTOOL} --no-print-directory -C ${ENCTOOLPATH}
 	@${ECHO_BLANK_LINE}
 	@echo "Built $@ successfully"
@@ -1375,3 +1372,6 @@ help:
 	@echo ""
 	@echo "example: build all targets for the FVP platform:"
 	@echo "  CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all"
+
+.PHONY: FORCE
+FORCE:;

make_helpers/build_macros.mk

@@ -214,21 +214,28 @@ define TOOL_ADD_IMG
     # This is the uppercase form of the first parameter
     $(eval _V := $(call uppercase,$(1)))
 
+    # $(check_$(1)_cmd) variable is executed in the check_$(1) target and also
+    # is put into the ${CHECK_$(3)FIP_CMD} variable which is executed by the
+    # target ${BUILD_PLAT}/${$(3)FIP_NAME}.
+    $(eval check_$(1)_cmd := \
+        $(if $(value $(_V)),,$$$$(error "Platform '${PLAT}' requires $(_V). Please set $(_V) to point to the right file")) \
+        $(if $(wildcard $(value $(_V))),,$$$$(error '$(_V)=$(value $(_V))' was specified, but '$(value $(_V))' does not exist)) \
+    )
+
     $(3)CRT_DEPS += check_$(1)
-    $(3)FIP_DEPS += check_$(1)
+    CHECK_$(3)FIP_CMD += $$(check_$(1)_cmd)
 ifeq ($(4),1)
     $(eval ENC_BIN := ${BUILD_PLAT}/$(1)_enc.bin)
     $(call ENCRYPT_FW,$(value $(_V)),$(ENC_BIN))
     $(call TOOL_ADD_IMG_PAYLOAD,$(1),$(value $(_V)),$(2),$(ENC_BIN),$(3), \
 		$(ENC_BIN))
 else
-    $(call TOOL_ADD_IMG_PAYLOAD,$(1),$(value $(_V)),$(2),,$(3))
+    $(call TOOL_ADD_IMG_PAYLOAD,$(1),$(value $(_V)),$(2),$(if $(wildcard $(value $(_V))),$(value $(_V)),FORCE),$(3))
 endif
 
 .PHONY: check_$(1)
 check_$(1):
-	$$(if $(value $(_V)),,$$(error "Platform '${PLAT}' requires $(_V). Please set $(_V) to point to the right file"))
-	$$(if $(wildcard $(value $(_V))),,$$(error '$(_V)=$(value $(_V))' was specified, but '$(value $(_V))' does not exist))
+	$(check_$(1)_cmd)
 endef
 
 ################################################################################

plat/arm/board/common/board_common.mk

@@ -41,7 +41,6 @@ $(eval $(call add_define,ARM_ROTPK_LOCATION_ID))
 # Force generation of the new hash if ROT_KEY is specified
 ifdef ROT_KEY
 	HASH_PREREQUISITES = $(ROT_KEY) FORCE
-FORCE:
 else
 	HASH_PREREQUISITES = $(ROT_KEY)
 endif

plat/marvell/armada/a3k/common/a3700_common.mk

@@ -212,6 +212,3 @@ mrvl_flash:
 	$(error "Platform '${PLAT}' for target '$@' requires WTP. Please set WTP to point to the right directory")
 
 endif # WTP
-
-.PHONY: FORCE
-FORCE:;

plat/marvell/armada/a8k/common/a8k_common.mk

@@ -166,6 +166,3 @@ ${DOIMAGETOOL}: FORCE
 .PHONY: mrvl_flash
 mrvl_flash: ${BUILD_PLAT}/${BOOT_IMAGE} ${DOIMAGETOOL}
 	${DOIMAGETOOL} ${DOIMAGE_FLAGS} ${BUILD_PLAT}/${BOOT_IMAGE} ${BUILD_PLAT}/${FLASH_IMAGE}
-
-.PHONY: FORCE
-FORCE:;

plat/marvell/armada/a8k/common/ble/ble.mk

@@ -26,7 +26,5 @@ PLAT_INCLUDES		+= 	-I$(MV_DDR_PATH)				\
 
 BLE_LINKERFILE		:=	$(BLE_PATH)/ble.ld.S
 
-FORCE:
-
 $(MV_DDR_LIB): FORCE
 	@+make -C $(MV_DDR_PATH) --no-print-directory PLAT_INCLUDES="$(PLAT_INCLUDES)" PLATFORM=$(PLAT) ARCH=AARCH64 OBJ_DIR=$(BUILD_PLAT)/ble