# # Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. # # SPDX-License-Identifier: BSD-3-Clause # ################################################################################ # Helpers for finding and referencing platform directories ################################################################################ ifndef PLAT_HELPERS_MK PLAT_HELPERS_MK := $(lastword $(MAKEFILE_LIST)) ifeq (${PLAT},) $(error "Error: Unknown platform. Please use PLAT= to specify the platform") endif # TF_PLATFORM_ROOT can be overridden for when building tools directly TF_PLATFORM_ROOT ?= plat/ PLAT_MAKEFILE := platform.mk # Generate the platforms list by recursively searching for all directories # under /plat containing a PLAT_MAKEFILE. Append each platform with a `|` # char and strip out the final '|'. ALL_PLATFORM_MK_FILES := $(call rwildcard,${TF_PLATFORM_ROOT},${PLAT_MAKEFILE}) ALL_PLATFORM_DIRS := $(patsubst %/,%,$(dir ${ALL_PLATFORM_MK_FILES})) ALL_PLATFORMS := $(sort $(notdir ${ALL_PLATFORM_DIRS})) PLAT_MAKEFILE_FULL := $(filter %/${PLAT}/${PLAT_MAKEFILE},${ALL_PLATFORM_MK_FILES}) PLATFORM_LIST := $(subst ${space},|,${ALL_PLATFORMS}) ifeq ($(PLAT_MAKEFILE_FULL),) $(error "Error: Invalid platform. The following platforms are available: ${PLATFORM_LIST}") endif # Record the directory where the platform make file was found. PLAT_DIR := $(dir ${PLAT_MAKEFILE_FULL}) endif