Improve prefix generation and fix build

mk/config.mk

@@ -4,7 +4,7 @@ ARCH?=x86_64
 ## Flags to pass to the installer (empty to download binary packages)
 INSTALLER_FLAGS?=--cookbook=cookbook
 ## Enabled to use binary prefix (much faster)
-PREFIX_BINARY?=1
+PREFIX_BINARY?=0
 ## Enabled to build custom rustc
 PREFIX_RUSTC?=1
 ## Filesystem size in MB (256 is the default)

mk/disk.mk

@@ -26,9 +26,7 @@ build/coreboot.elf: bootloader-coreboot/build/bootloader
 	cp -v $< $@
 
 bootloader-efi/build/$(EFI_TARGET)/boot.efi: FORCE
-	unset XARGO_HOME XARGO_RUST_SRC && \
 	cd bootloader-efi && \
-	rustup component add rust-src && \
 	$(MAKE) build/$(EFI_TARGET)/boot.efi TARGET=$(EFI_TARGET)
 
 build/bootloader.efi: bootloader-efi/build/$(EFI_TARGET)/boot.efi
@@ -36,7 +34,7 @@ build/bootloader.efi: bootloader-efi/build/$(EFI_TARGET)/boot.efi
 	cp -v $< $@
 
 build/harddrive-efi.bin: build/bootloader.efi build/filesystem.bin
-	dd if=/dev/zero of=$@.partial bs=1048576 count=$$(du -m $< | cut -f1)
+	dd if=/dev/zero of=$@.partial bs=1048576 count=$$(expr $$(du -m $< | cut -f1) + 1)
 	mkfs.vfat $@.partial
 	mmd -i $@.partial efi
 	mmd -i $@.partial efi/boot

mk/prefix.mk

@@ -54,6 +54,32 @@ $(PREFIX)/relibc-install.tar.gz: $(PREFIX)/relibc-install
 		--directory="$<" \
 		.
 
+$(PREFIX)/rust-install: $(ROOT)/rust | $(PREFIX)/relibc-install
+	rm -rf "$(PREFIX)/rust-build" "$@.partial" "$@"
+	mkdir -p "$(PREFIX)/rust-build"
+	cp -r "$(PREFIX)/relibc-install" "$@.partial"
+	cd "$(PREFIX)/rust-build" && \
+	export PATH="$(ROOT)/$@.partial/bin:$$PATH" && \
+	"$</configure" \
+		--prefix="/" \
+		--disable-docs \
+		--target="$(TARGET)" \
+		&& \
+	make -j `$(NPROC)` && \
+	make -j `$(NPROC)` install DESTDIR="$(ROOT)/$@.partial"
+	rm -rf "$(PREFIX)/rust-build"
+	mkdir -p "$@.partial/lib/rustlib/x86_64-unknown-linux-gnu/bin"
+	cd "$@.partial" && $(PREFIX_STRIP)
+	touch "$@.partial"
+	mv "$@.partial" "$@"
+
+$(PREFIX)/rust-install.tar.gz: $(PREFIX)/rust-install
+	tar \
+		--create \
+		--gzip \
+		--file "$@" \
+		--directory="$<" \
+		.
 ifeq ($(PREFIX_BINARY),1)
 
 $(PREFIX)/gcc-install.tar.gz:
@@ -200,16 +226,4 @@ $(PREFIX)/gcc-install.tar.gz: $(PREFIX)/gcc-install
 		--file "$@" \
 		--directory="$<" \
 		.
-
-# Building full rustc may not be required
-# $(PREFIX)/rust-install: $(ROOT)/rust | $(PREFIX)/gcc-install
-# 	rm -rf "$(PREFIX)/rust-build" "$@"
-# 	mkdir -p "$(PREFIX)/rust-build" "$@"
-# 	cd "$(PREFIX)/rust-build" && \
-# 	export PATH="$(PREFIX_PATH):$$PATH" && \
-# 	"$</configure" --target="$(TARGET)" --prefix="$@" --disable-docs && \
-# 	make -j `$(NPROC)` && \
-# 	make -j `$(NPROC)` install
-# 	touch "$@"
-
 endif