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image.mk: add support for limiting images to specific subtargets
[openwrt/openwrt.git] / include / image.mk
diff --git a/include/image.mk b/include/image.mk
index 5ef800234bc4004b6524251523a28ab94d2d71e7..ed4f8e44ea75c2fe271a04b8984be6069cbd6b52 100644 (file)
--- a/include/image.mk
+++ b/include/image.mk
@@ -20,6 +20,7 @@ DTS_DIR:=$(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/dts
 
 sanitize = $(call tolower,$(subst _,-,$(1)))
 
+SUBTARGET ?= default
 DIST_SANITIZED:=$(call sanitize,$(VERSION_DIST))
 EXTRA_NAME_SANITIZED=$(call sanitize,$(EXTRA_IMAGE_NAME))
 
@@ -120,7 +121,7 @@ endef
 
 define Image/BuildKernel/MkuImage
        mkimage -A $(ARCH) -O linux -T kernel -C $(1) -a $(2) -e $(3) \
-               -n '$(call toupper,$(ARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $(4) $(5)
+               -n '$(call toupper,$(ARCH)) LEDE Linux-$(LINUX_VERSION)' -d $(4) $(5)
 endef
 
 define Image/BuildKernel/MkFIT
@@ -173,7 +174,7 @@ $(eval $(foreach S,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/template,$(S))))
 $(eval $(foreach S,$(NAND_BLOCKSIZE),$(call Image/mkfs/jffs2-nand/template,$(S))))
 
 define Image/mkfs/squashfs
-       $(STAGING_DIR_HOST)/bin/mksquashfs4 $(TARGET_DIR) $(KDIR)/root.squashfs -nopad -noappend -root-owned -comp $(SQUASHFSCOMP) $(SQUASHFSOPT) -processors $(if $(CONFIG_PKG_BUILD_JOBS),$(CONFIG_PKG_BUILD_JOBS),1)
+       $(STAGING_DIR_HOST)/bin/mksquashfs4 $(TARGET_DIR) $(KDIR)/root.squashfs -nopad -noappend -root-owned -comp $(SQUASHFSCOMP) $(SQUASHFSOPT) -processors $(if $(CONFIG_PKG_BUILD_JOBS),$(CONFIG_PKG_BUILD_JOBS),1) $(if $(SOURCE_DATE_EPOCH),-fixed-time $(SOURCE_DATE_EPOCH))
 endef
 
 # $(1): board name
@@ -186,7 +187,9 @@ ifneq ($(CONFIG_NAND_SUPPORT),)
        [ -z "$(2)" ] || $(CP) "$(KDIR)/root.$(2)" "$(KDIR_TMP)/sysupgrade-$(1)/root"
        [ -z "$(3)" ] || $(CP) "$(3)" "$(KDIR_TMP)/sysupgrade-$(1)/kernel"
        (cd "$(KDIR_TMP)"; $(TAR) cvf \
-               "$(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2)-sysupgrade.tar" sysupgrade-$(1))
+               "$(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2)-sysupgrade.tar" sysupgrade-$(1) \
+                       $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
+       )
    endef
 
 # $(1) board name
@@ -248,7 +251,9 @@ define Image/mkfs/cpiogz
 endef
 
 define Image/mkfs/targz
-       $(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz --numeric-owner --owner=0 --group=0 --sort=name -C $(TARGET_DIR)/ .
+       $(TAR) -cp --numeric-owner --owner=0 --group=0 --sort=name \
+               $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
+               -C $(TARGET_DIR)/ . | gzip -9n > $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz
 endef
 
 E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024)))
@@ -259,6 +264,7 @@ define Image/mkfs/ext4
                -i $(CONFIG_TARGET_EXT4_MAXINODE) \
                -m $(CONFIG_TARGET_EXT4_RESERVED_PCT) \
                $(if $(CONFIG_TARGET_EXT4_JOURNAL),,-J) \
+               $(if $(SOURCE_DATE_EPOCH),-T $(SOURCE_DATE_EPOCH)) \
                $(KDIR)/root.ext4 $(TARGET_DIR)/
 endef
 
@@ -298,7 +304,7 @@ define Build/uImage
        mkimage -A $(LINUX_KARCH) \
                -O linux -T kernel \
                -C $(1) -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
-               -n '$(call toupper,$(LINUX_KARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $@ $@.new
+               -n '$(call toupper,$(LINUX_KARCH)) LEDE Linux-$(LINUX_VERSION)' -d $@ $@.new
        @mv $@.new $@
 endef
 
@@ -313,7 +319,7 @@ endef
 
 define Build/netgear-dni
        $(STAGING_DIR_HOST)/bin/mkdniimg \
-               -B $(NETGEAR_BOARD_ID) -v OpenWrt.$(REVISION) \
+               -B $(NETGEAR_BOARD_ID) -v LEDE.$(REVISION) \
                $(if $(NETGEAR_HW_ID),-H $(NETGEAR_HW_ID)) \
                -r "$(1)" \
                -i $@ -o $@.new
@@ -331,7 +337,11 @@ define Build/fit
 endef
 
 define Build/lzma
-       $(STAGING_DIR_HOST)/bin/lzma e $@ -lc1 -lp2 -pb2 $(1) $@.new
+       $(call Build/lzma-no-dict,-lc1 -lp2 -pb2 $(1))
+endef
+
+define Build/lzma-no-dict
+       $(STAGING_DIR_HOST)/bin/lzma e $@ $(1) $@.new
        @mv $@.new $@
 endef
 
@@ -357,7 +367,7 @@ endef
 
 define Build/kernel-bin
        rm -f $@
-       cp $^ $@
+       cp $< $@
 endef
 
 define Build/patch-cmdline
@@ -374,6 +384,7 @@ endef
 
 define Build/append-ubi
        sh $(TOPDIR)/scripts/ubinize-image.sh \
+               $(if $(UBOOTENV_IN_UBI),--uboot-env) \
                $(if $(KERNEL_IN_UBI),--kernel $(word 1,$^)) \
                $(word 2,$^) \
                $@.tmp \
@@ -428,7 +439,11 @@ endef
 
 define Device/Init
   PROFILES := $(PROFILE)
+  SUBTARGETS := $(SUBTARGET)
   DEVICE_NAME := $(1)
+  DEVICE_TITLE :=
+  DEVICE_PACKAGES :=
+  DEVICE_DESCRIPTION = Build firmware images for $$(DEVICE_TITLE)
   KERNEL:=
   KERNEL_INITRAMFS = $$(KERNEL)
   KERNEL_SIZE:=
@@ -444,6 +459,7 @@ define Device/Init
   KERNEL_INITRAMFS_NAME = $$(KERNEL_NAME)-initramfs
   KERNEL_INSTALL :=
   KERNEL_NAME := vmlinux
+  KERNEL_DEPENDS :=
   KERNEL_SIZE :=
 
   FILESYSTEMS := $(TARGET_FILESYSTEMS)
@@ -454,12 +470,12 @@ define Device/ExportVar
 
 endef
 define Device/Export
-  $(foreach var,$(DEVICE_VARS) DEVICE_NAME KERNEL KERNEL_INITRAMFS,$(call Device/ExportVar,$(1),$(var)))
+  $(foreach var,$(DEVICE_VARS) DEVICE_NAME KERNEL KERNEL_INITRAMFS KERNEL_INITRAMFS_IMAGE,$(call Device/ExportVar,$(1),$(var)))
   $(1) : FILESYSTEM:=$(2)
 endef
 
 define Device/Check
-  _TARGET = $$(if $$(filter $(PROFILE),$$(PROFILES)),install,install-disabled)
+  _TARGET = $$(if $$(and $$(filter $(SUBTARGET),$$(SUBTARGETS)),$$(filter $(PROFILE),$$(PROFILES))),install,install-disabled)
   _COMPILE_TARGET = $$(if $(if $(IB),,$(CONFIG_IB)$$(filter $(PROFILE),$$(PROFILES))),compile,compile-disabled)
 endef
 
@@ -468,11 +484,11 @@ define Device/Build/initramfs
   $(call Device/Export,$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE),$(1))
   $$(_TARGET): $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE)
 
-  $(KDIR)/$$(KERNEL_INITRAMFS_NAME): image_prepare
+  $(KDIR)/$$(KERNEL_INITRAMFS_NAME):: image_prepare
   $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE)
        cp $$^ $$@
 
-  $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME)
+  $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
        @rm -f $$@
        $$(call concat_cmd,$$(KERNEL_INITRAMFS))
 endef
@@ -495,7 +511,7 @@ endef
 
 define Device/Build/kernel
   _KERNEL_IMAGES += $(KDIR)/$$(KERNEL_NAME)
-  $(KDIR)/$$(KERNEL_NAME): image_prepare
+  $(KDIR)/$$(KERNEL_NAME):: image_prepare
   $$(_TARGET): $$(if $$(KERNEL_INSTALL),$(BIN_DIR)/$$(KERNEL_IMAGE))
   $(call Device/Export,$(KDIR)/$$(KERNEL_IMAGE),$(1))
   $(BIN_DIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_IMAGE)
@@ -504,7 +520,7 @@ define Device/Build/kernel
     ifdef CONFIG_IB
       install: $(KDIR)/$$(KERNEL_IMAGE)
     endif
-    $(KDIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_NAME)
+    $(KDIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
        @rm -f $$@
        $$(call concat_cmd,$$(KERNEL))
        $$(if $$(KERNEL_SIZE),$$(call Device/Build/check_size,$$(KERNEL_SIZE)))
@@ -537,17 +553,39 @@ define Device/Build
       $$(call Device/Build/image,$$(fs),$$(image),$(1)))))
 endef
 
+define Device/DumpInfo
+Target-Profile: DEVICE_$(1)
+Target-Profile-Name: $(DEVICE_TITLE)
+Target-Profile-Packages: $(DEVICE_PACKAGES)
+Target-Profile-Description:
+$(DEVICE_DESCRIPTION)
+@@
+
+endef
+
+DEVICE_PROFILE_CHECK=$(and $(DEVICE_TITLE),$(filter $(SUBTARGET),$(SUBTARGETS)))
+
+define Device/Dump
+$$(eval $$(if $$(DEVICE_PROFILE_CHECK),$$(info $$(call Device/DumpInfo,$(1)))))
+endef
+
 define Device
   $(call Device/Init,$(1))
   $(call Device/Default,$(1))
   $(call Device/Check,$(1))
   $(call Device/$(1),$(1))
-  $(call Device/Build,$(1))
+  $(call Device/$(if $(DUMP),Dump,Build),$(1))
 
 endef
 
 define BuildImage
 
+  ifneq ($(DUMP),)
+    all: dumpinfo
+    dumpinfo: FORCE
+       @true
+  endif
+
   download:
   prepare:
   compile:
@@ -563,11 +601,11 @@ define BuildImage
                $(call Build/Clean)
 
     image_prepare: compile
-               mkdir -p $(KDIR)/tmp
+               mkdir -p $(BIN_DIR) $(KDIR)/tmp
                $(call Image/Prepare)
   else
     image_prepare:
-               mkdir -p $(KDIR)/tmp
+               mkdir -p $(BIN_DIR) $(KDIR)/tmp
   endif
 
   mkfs_prepare: image_prepare
@@ -581,9 +619,6 @@ define BuildImage
   $(foreach device,$(TARGET_DEVICES),$(call Device,$(device)))
   $(foreach fs,$(TARGET_FILESYSTEMS) $(fs-subtypes-y),$(call BuildImage/mkfs,$(fs)))
 
-  $$(sort $$(_KERNEL_IMAGES)):
-       @touch $$@
-
   install: kernel_prepare
        $(foreach fs,$(TARGET_FILESYSTEMS),
                $(call Image/Build,$(fs))
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