linux/arch/arc/boot/Makefile

targets := vmlinux.bin vmlinux.bin.gz uImage

# uImage build relies on mkimage being availble on your host for ARC target
# You will need to build u-boot for ARC, rename mkimage to arc-elf32-mkimage
# and make sure it's reacable from your PATH

OBJCOPYFLAGS= -O binary -R .note -R .note.gnu.build-id -R .comment -S

LINUX_START_TEXT = $$(readelf -h vmlinux | \
			grep "Entry point address" | grep -o 0x.*)

UIMAGE_LOADADDR    = $(CONFIG_LINUX_LINK_BASE)
UIMAGE_ENTRYADDR   = $(LINUX_START_TEXT)

suffix-y := bin
suffix-$(CONFIG_KERNEL_GZIP)	:= gz

targets += uImage uImage.bin uImage.gz
extra-y += vmlinux.bin vmlinux.bin.gz

$(obj)/vmlinux.bin: vmlinux FORCE
	$(call if_changed,objcopy)

$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
	$(call if_changed,gzip)

$(obj)/uImage.bin: $(obj)/vmlinux.bin FORCE
	$(call if_changed,uimage,none)

$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE
	$(call if_changed,uimage,gzip)

$(obj)/uImage: $(obj)/uImage.$(suffix-y)
	@ln -sf $(notdir $<) $@
	@echo '  Image $@ is ready'
ARC: Build system: Makefiles, Kconfig, Linker script Arnd in his review pointed out that arch Kconfig organisation has several deficiencies: * Build time entries for things which can be runtime extracted from DT (e.g. SDRAM size, core clk frequency..) * Not multi-platform-image-build friendly (choice .. endchoice constructs) * cpu variants support (750/770) is exclusive. The first 2 have been fixed in subsequent patches. Due to the nature of the 750 and 770, it is not possible to build for both together, w/o special runtime glue code which would hurt performance. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> 2013-01-18 09:42:20 +00:00			`targets := vmlinux.bin vmlinux.bin.gz uImage`

			`# uImage build relies on mkimage being availble on your host for ARC target`
			`# You will need to build u-boot for ARC, rename mkimage to arc-elf32-mkimage`
			`# and make sure it's reacable from your PATH`

			`OBJCOPYFLAGS= -O binary -R .note -R .note.gnu.build-id -R .comment -S`

			`LINUX_START_TEXT = $$(readelf -h vmlinux \| \`
			`grep "Entry point address" \| grep -o 0x.*)`

			`UIMAGE_LOADADDR = $(CONFIG_LINUX_LINK_BASE)`
			`UIMAGE_ENTRYADDR = $(LINUX_START_TEXT)`
ARC: [build] Allow uncompressed uImage The existing uImage target always generates gzip compressed image which drags bootup for some very slow FPGA customer boards. So introduce seperate make targets:uImage.{bin,gz} with uncompressed being default. Also tie gz generation to CONFIG_KERNEL_GZIP, which a platform can select in it's Kconfig if it wishes gz to be default. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> 2013-03-22 16:34:27 +00:00
			`suffix-y := bin`
			`suffix-$(CONFIG_KERNEL_GZIP) := gz`

			`targets += uImage uImage.bin uImage.gz`
			`extra-y += vmlinux.bin vmlinux.bin.gz`
ARC: Build system: Makefiles, Kconfig, Linker script Arnd in his review pointed out that arch Kconfig organisation has several deficiencies: * Build time entries for things which can be runtime extracted from DT (e.g. SDRAM size, core clk frequency..) * Not multi-platform-image-build friendly (choice .. endchoice constructs) * cpu variants support (750/770) is exclusive. The first 2 have been fixed in subsequent patches. Due to the nature of the 750 and 770, it is not possible to build for both together, w/o special runtime glue code which would hurt performance. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> 2013-01-18 09:42:20 +00:00
			`$(obj)/vmlinux.bin: vmlinux FORCE`
			`$(call if_changed,objcopy)`

			`$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE`
			`$(call if_changed,gzip)`

ARC: [build] Allow uncompressed uImage The existing uImage target always generates gzip compressed image which drags bootup for some very slow FPGA customer boards. So introduce seperate make targets:uImage.{bin,gz} with uncompressed being default. Also tie gz generation to CONFIG_KERNEL_GZIP, which a platform can select in it's Kconfig if it wishes gz to be default. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> 2013-03-22 16:34:27 +00:00			`$(obj)/uImage.bin: $(obj)/vmlinux.bin FORCE`
			`$(call if_changed,uimage,none)`

			`$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE`
			`$(call if_changed,uimage,gzip)`
ARC: Build system: Makefiles, Kconfig, Linker script Arnd in his review pointed out that arch Kconfig organisation has several deficiencies: * Build time entries for things which can be runtime extracted from DT (e.g. SDRAM size, core clk frequency..) * Not multi-platform-image-build friendly (choice .. endchoice constructs) * cpu variants support (750/770) is exclusive. The first 2 have been fixed in subsequent patches. Due to the nature of the 750 and 770, it is not possible to build for both together, w/o special runtime glue code which would hurt performance. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> 2013-01-18 09:42:20 +00:00
ARC: [build] Allow uncompressed uImage The existing uImage target always generates gzip compressed image which drags bootup for some very slow FPGA customer boards. So introduce seperate make targets:uImage.{bin,gz} with uncompressed being default. Also tie gz generation to CONFIG_KERNEL_GZIP, which a platform can select in it's Kconfig if it wishes gz to be default. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> 2013-03-22 16:34:27 +00:00			`$(obj)/uImage: $(obj)/uImage.$(suffix-y)`
			`@ln -sf $(notdir $<) $@`
			`@echo ' Image $@ is ready'`