Radix cross Linux

COMPONENT_TARGETS  = $(HARDWARE_INTEL_PC64)
COMPONENT_TARGETS += $(HARDWARE_BAIKAL_M1)

include ../../../build-system/constants.mk

# ======= __END_OF_REQUIRES__ =======

bin_src     = package/src/main.rs
cargo_toml  = package/Cargo.toml

build_dir   = $(TARGET_BUILD_DIR)/build
bin_target  = $(TARGET_BUILD_DIR)/main
info_target = $(TARGET_BUILD_DIR)/.info-done

cross_file  = $(CURDIR)/$(TARGET_BUILD_DIR)/$(TARGET)-config.toml

BUILD_TARGETS = $(bin_target) $(info_target)

#
# The user may reject the sysroot usage. For this the user have to declare
# the USE_TARGET_DEST_DIR_SYSROOT variable with value 'no':
#
#   USE_TARGET_DEST_DIR_SYSROOT = no
#
USE_TARGET_DEST_DIR_SYSROOT = no


include ../../../build-system/core.mk


ARCH = $(shell echo $(TARGET) | cut -f1 -d'-')

cargo-flags      = +$(RUST_TOOLCHAIN) --config $(cross_file)
cargo-target-dir = $(CURDIR)/$(TARGET_BUILD_DIR)/target
rust-target      = $(TARGET)

$(bin_target): $(cargo_toml) $(bin_src)
	@mkdir -p $(build_dir)/
	@cp -a package/* $(build_dir)/
	@echo "======= Create cross file: ======="
	@echo ''                                                  >  $(cross_file)
	@echo '[target.$(rust-target)]'                           >> $(cross_file)
	@echo 'rustflags = ['                                     >> $(cross_file)
	@echo '  "-C", "linker=$(CROSS_PREFIX)gcc",'              >> $(cross_file)
	@echo '  "--cap-lints", "allow",'                         >> $(cross_file)
	@echo ']'                                                 >> $(cross_file)
	#
	# RUSTFLAGS='-C linker=$(CROSS_PREFIX)gcc --cap-lints allow'
	#
	@echo "======= Build the `basename $(bin_target)` executable: ======="
	@cd $(build_dir) && CARGO_HOME=$(CARGO_HOME) \
	                    RUSTUP_HOME=$(RUSTUP_HOME) \
	                    CARGO_BUILD_RUSTC=$(RUSTC) \
	                    CARGO_BUILD_TARGET='$(rust-target)' \
	                    CARGO_TARGET_DIR='$(cargo-target-dir)' \
	                    $(CARGO) $(cargo-flags) build --verbose --release --bin main
	@cp $(TARGET_BUILD_DIR)/target/$(TARGET)/release/main $(TARGET_BUILD_DIR)/
	@touch $@

$(info_target): $(bin_target)
	@echo "==================================="
	@echo "======= Environment:        ======="
	@echo "==================================="
	@echo "======= RUST_TOOLCHAIN = '$(RUST_TOOLCHAIN)'"
	@echo "======= CARGO_HOME     = '$(CARGO_HOME)'"
	@echo "======= RUSTUP_HOME    = '$(RUSTUP_HOME)'"
	@echo "======= RUSTC          = '$(RUSTC)'"
	@echo "======= RUSTDOC        = '$(RUSTDOC)'"
	@echo "======= RUSTFMT        = '$(RUSTFMT)'"
	@echo "======= CBINDGEN       = '$(CBINDGEN)'"
	@echo "======= RUST_PATH      = '$(RUST_PATH)'"
	@echo ""
	@echo "#"
	@echo "# Please find the `basename $(bin_target)` executable in the $(TARGET_BUILD_DIR)/ directory."
	@echo "#"
	@echo "# Run the `basename $(bin_target)` executable:"
	@echo ""
	@$(BUILDSYSTEM)/usr/bin/qemu-$(ARCH) \
	   $(TOOLCHAIN_PATH)/$(TARGET)/sys-root/$(shell $(PATCHELF) --print-interpreter $(bin_target) | sed 's,^\/,,') \
	   --library-path $(TOOLCHAIN_PATH)/$(TARGET)/lib:$(TOOLCHAIN_PATH)/$(TARGET)/sys-root/lib:$(TOOLCHAIN_PATH)/$(TARGET)/sys-root/usr/lib \
	   $(bin_target)
	@echo ""
	@touch $@