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################################################################################
# Toolchains
################################################################################
ROOT ?= $(CURDIR)/..
TOOLCHAIN_ROOT ?= $(ROOT)/toolchains
AARCH32_PATH ?= $(TOOLCHAIN_ROOT)/aarch32
AARCH32_CROSS_COMPILE ?= $(AARCH32_PATH)/bin/arm-linux-gnueabihf-
AARCH32_GCC_VERSION ?= gcc-arm-8.2-2018.08-x86_64-arm-linux-gnueabihf
SRC_AARCH32_GCC ?= https://developer.arm.com/-/media/Files/downloads/gnu-a/8.2-2018.08/${AARCH32_GCC_VERSION}.tar.xz
AARCH64_PATH ?= $(TOOLCHAIN_ROOT)/aarch64
AARCH64_CROSS_COMPILE ?= $(AARCH64_PATH)/bin/aarch64-linux-gnu-
AARCH64_GCC_VERSION ?= gcc-arm-8.2-2018.08-x86_64-aarch64-linux-gnu
SRC_AARCH64_GCC ?= https://developer.arm.com/-/media/Files/downloads/gnu-a/8.2-2018.08/${AARCH64_GCC_VERSION}.tar.xz
# Download toolchain macro for saving some repetition
# $(1) is $AARCH.._PATH : i.e., path to the destination
# $(2) is $SRC_AARCH.._GCC : is the downloaded tar.gz file
# $(3) is $.._GCC_VERSION : the name of the file to download
define dltc
@if [ ! -d "$(1)" ]; then \
mkdir -p $(1); \
echo "Downloading $(3) ..."; \
curl -s -L $(2) -o $(TOOLCHAIN_ROOT)/$(3).tar.xz; \
tar xf $(TOOLCHAIN_ROOT)/$(3).tar.xz -C $(1) --strip-components=1; \
fi
endef
.PHONY: toolchains
toolchains: aarch32 aarch64
.PHONY: aarch32
aarch32:
$(call dltc,$(AARCH32_PATH),$(SRC_AARCH32_GCC),$(AARCH32_GCC_VERSION))
.PHONY: aarch64
aarch64:
$(call dltc,$(AARCH64_PATH),$(SRC_AARCH64_GCC),$(AARCH64_GCC_VERSION))
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