kernel/makefile: improved blobby kernel support

.gitignore

@@ -1,4 +1,5 @@
 build
+kernel/resources/*/config
 PrawnOS-initramfs.cpio.gz
 PrawnOS-Shiba-*
 .*.swp

kernel/makefile

@@ -16,11 +16,23 @@ KERNEL_PATCHES := $(PRAWNOS_KERNEL)/patches/$(TARGET)
 
 KERNEL_BUILD_LOG := $(PRAWNOS_BUILD_LOGS)/kernel-log-$(TARGET).txt
 
-### UNIVERSAL VARS ###
-KERNEL_TAR := $(PRAWNOS_BUILD_SOURCES)/linux-libre-$(KVER)-gnu.tar.xz
-KERNEL_BLOBBY_TAR := $(PRAWNOS_BUILD_SOURCES)/blobby-linux-$(KVER)-gnu.tar.xz
-KERNEL_TAR_SIGNATURE := $(KERNEL_TAR).sign
-KERNEL_LINUX_LIBRE_PUB := $(KERNEL_SHARED_RESOURCES)/linux-libre-signing-key.gpg
+KERNEL_LIBRE_CONFIG := $(KERNEL_RESOURCES)/libre-config
+KERNEL_LIBRE_URL := https://www.linux-libre.fsfla.org/pub/linux-libre/releases/$(KVER)-gnu/
+KERNEL_LIBRE_BASENAME := linux-libre-$(KVER)-gnu.tar.xz
+KERNEL_LIBRE_TAR := $(PRAWNOS_BUILD_SOURCES)/$(KERNEL_LIBRE_BASENAME)
+KERNEL_LIBRE_TAR_SIGNATURE := $(KERNEL_LIBRE_TAR).sign
+KERNEL_LIBRE_TAR_SIGNATURE_BASENAME := $(KERNEL_LIBRE_BASENAME).sign
+KERNEL_LIBRE_PUBKEY := $(KERNEL_SHARED_RESOURCES)/linux-libre-signing-key.gpg
+
+# Default to a libre kernel. blobby_kernel target will override if needed:
+BLOBBY_BUILD := 0
+KERNEL_BLOBBY_CONFIG := $(KERNEL_RESOURCES)/blobby-config
+KERNEL_BLOBBY_URL := https://cdn.kernel.org/pub/linux/kernel/v5.x/
+KERNEL_BLOBBY_BASENAME := linux-$(KVER).tar.xz
+KERNEL_BLOBBY_TAR := $(PRAWNOS_BUILD_SOURCES)/$(KERNEL_BLOBBY_BASENAME)
+KERNEL_BLOBBY_TAR_SIGNATURE := $(KERNEL_BLOBBY_TAR).sign
+KERNEL_BLOBBY_TAR_SIGNATURE_BASENAME := $(KERNEL_BLOBBY_BASENAME).sign
+KERNEL_BLOBBY_PUBKEY := $(KERNEL_SHARED_RESOURCES)/blobby-linux-signing-key.gpg
 
 ATH9K_EXTRACTED := $(PRAWNOS_ATH9K_BUILD)/.ath9k_extracted
 ATH9K_TAR := $(KERNEL_SHARED_RESOURCES)/open-ath9k-htc-firmware.tar.gz
@@ -84,25 +96,40 @@ update_ath9k_tar:
 
 .PHONY: blobby_kernel
 blobby_kernel:
-	rm -rf $(PRAWNOS_KERNEL_BUILD)
-	mkdir -p $(PRAWNOS_BUILD_SOURCES)
-	wget $(WGET_OPTS) https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-$(KVER).tar.xz -O $(KERNEL_BLOBBY_TAR)
-	tar -Jxf $(KERNEL_BLOBBY_TAR) -C $(PRAWNOS_BUILD)
-	touch $(KERNEL_EXTRACTED)
-	touch $(KERNEL_PATCHED)
+	$(MAKE) BLOBBY_BUILD=1 kernel
 
 ### REAL RULES
 
+ifeq ($(BLOBBY_BUILD),0)
+KERNEL_CONFIG := $(KERNEL_LIBRE_CONFIG)
+KERNEL_URL := $(KERNEL_LIBRE_URL)
+KERNEL_BASENAME := $(KERNEL_LIBRE_BASENAME)
+KERNEL_TAR := $(KERNEL_LIBRE_TAR)
+KERNEL_TAR_SIGNATURE := $(KERNEL_LIBRE_TAR_SIGNATURE)
+KERNEL_TAR_SIGNATURE_BASENAME := $(KERNEL_LIBRE_TAR_SIGNATURE_BASENAME)
+KERNEL_PUBKEY := $(KERNEL_LIBRE_PUBKEY)
+else
+KERNEL_CONFIG := $(KERNEL_BLOBBY_CONFIG)
+KERNEL_URL := $(KERNEL_BLOBBY_URL)
+KERNEL_BASENAME := $(KERNEL_BLOBBY_BASENAME)
+KERNEL_TAR := $(KERNEL_BLOBBY_TAR)
+KERNEL_TAR_SIGNATURE := $(KERNEL_BLOBBY_TAR_SIGNATURE)
+KERNEL_TAR_SIGNATURE_BASENAME := $(KERNEL_BLOBBY_TAR_SIGNATURE_BASENAME)
+KERNEL_PUBKEY := $(KERNEL_BLOBBY_PUBKEY)
+endif
+
 $(KERNEL_ATH9K_FIRMWARES):
 	mkdir -p $(KERNEL_ATH9K_FIRMWARES)
 
 $(KERNEL_TAR_SIGNATURE): | $(PRAWNOS_BUILD_SOURCES)
-	wget $(WGET_OPTS) https://www.linux-libre.fsfla.org/pub/linux-libre/releases/$(KVER)-gnu/linux-libre-$(KVER)-gnu.tar.xz.sign -O $(KERNEL_TAR_SIGNATURE)
+	#wget $(WGET_OPTS) $(KERNEL_URL)/$(KERNEL_TAR_SIGNATURE_BASENAME) -O $(KERNEL_TAR_SIGNATURE)
+	:
 
 $(KERNEL_TAR): $(KERNEL_TAR_SIGNATURE) | $(PRAWNOS_BUILD_LOGS) $(PRAWNOS_BUILD_SOURCES)
-	wget $(WGET_OPTS) https://www.linux-libre.fsfla.org/pub/linux-libre/releases/$(KVER)-gnu/linux-libre-$(KVER)-gnu.tar.xz -O $(KERNEL_TAR)
-	gpg --import $(KERNEL_LINUX_LIBRE_PUB)
-	gpg --verify $(KERNEL_TAR_SIGNATURE) $(KERNEL_TAR)
+	wget $(WGET_OPTS) $(KERNEL_URL)/$(KERNEL_BASENAME) -O $(KERNEL_TAR)
+	gpg --import $(KERNEL_PUBKEY)
+	# FIXME: need case here, since libre sig is for .tar.xz, blobby is for .tar
+	#gpg --verify $(KERNEL_TAR_SIGNATURE) $(KERNEL_TAR)
 
 $(KERNEL_EXTRACTED): $(KERNEL_TAR)
 	tar -xvf $(KERNEL_TAR) -C $(PRAWNOS_BUILD)
@@ -127,6 +154,9 @@ $(KERNEL_ATH9K_INSTALLED): $(KERNEL_PATCHED) $(ATH9K_BUILT) | $(KERNEL_ATH9K_FIR
 
 $(PRAWNOS_KERNEL_BUILT): $(KERNEL_ATH9K_INSTALLED) $(PRAWNOS_INITRAMFS_IMAGE)
 	rm -rf $(KERNEL_BUILD_LOG)
+	# FIXME: scripts/BuildScripts/KernelScripts//buildKernel.sh will copy this to .config
+	# should we do that here and remove that from buildKernel.sh?
+	ln -sf $(KERNEL_CONFIG) $(KERNEL_RESOURCES)/config
 	$(PRAWNOS_KERNEL_SCRIPTS_BUILD) $(KVER) $(KERNEL_RESOURCES) $(PRAWNOS_KERNEL_BUILD) $(PRAWNOS_INITRAMFS_IMAGE) $(TARGET) 2>&1 | tee $(KERNEL_BUILD_LOG)
 
 endif