GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/trusted-firmware/trusted-firmware-a-2.8/make_helpers/plat_helpers.mk

@@ -0,0 +1,38 @@
+#
+# 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=<platform name> 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