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As an initial stage of making Trusted Firmware build environment more portable, we remove most uses of the $(shell ) function and replace them with more portable make function based solutions. Note that the setting of BUILD_STRING still uses $(shell ) since it's not possible to reimplement this as a make function. Avoiding invocation of this on incompatible host platforms will be implemented separately. Change-Id: I768e2f9a265c78814a4adf2edee4cc46cda0f5b8pull/578/head
Evan Lloyd
9 years ago
5 changed files with 97 additions and 34 deletions
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#
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# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# Neither the name of ARM nor the names of its contributors may be used
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# to endorse or promote products derived from this software without specific
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# prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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################################################################################
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# Helpers for finding and referencing platform directories
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################################################################################
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ifndef PLAT_HELPERS_MK |
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PLAT_HELPERS_MK := $(lastword $(MAKEFILE_LIST)) |
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ifeq (${PLAT},) |
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$(error "Error: Unknown platform. Please use PLAT=<platform name> to specify the platform") |
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endif |
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# PLATFORM_ROOT can be overridden for when building tools directly |
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PLATFORM_ROOT ?= plat/ |
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PLAT_MAKEFILE := platform.mk |
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# Generate the platforms list by recursively searching for all directories |
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# under /plat containing a PLAT_MAKEFILE. Append each platform with a `|` |
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# char and strip out the final '|'. |
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ALL_PLATFORM_MK_FILES := $(call rwildcard,${PLATFORM_ROOT},${PLAT_MAKEFILE}) |
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ALL_PLATFORM_DIRS := $(patsubst %/,%,$(dir ${ALL_PLATFORM_MK_FILES})) |
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ALL_PLATFORMS := $(sort $(notdir ${ALL_PLATFORM_DIRS})) |
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PLAT_MAKEFILE_FULL := $(filter %/${PLAT}/${PLAT_MAKEFILE},${ALL_PLATFORM_MK_FILES}) |
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PLATFORM_LIST := $(subst ${space},|,${ALL_PLATFORMS}) |
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ifeq ($(PLAT_MAKEFILE_FULL),) |
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$(error "Error: Invalid platform. The following platforms are available: ${PLATFORM_LIST}") |
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endif |
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# Record the directory where the platform make file was found. |
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PLAT_DIR := $(dir ${PLAT_MAKEFILE_FULL}) |
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endif |
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