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bcd7c45e0d
The .its targets require information about the kernel binary, such as
its entry point, which is extracted from the vmlinux ELF. We therefore
require that the ELF is built before the .its files are generated.
Declare this requirement in the Makefile such that make will ensure this
is always the case, otherwise in corner cases we can hit issues as the
.its is generated with an incorrect (either invalid or stale) entry
point.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Fixes: cf2a5e0bb4 ("MIPS: Support generating Flattened Image Trees (.itb)")
Cc: linux-mips@linux-mips.org
Cc: stable <stable@vger.kernel.org> # v4.9+
Patchwork: https://patchwork.linux-mips.org/patch/16179/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
169 lines
4.6 KiB
Makefile
169 lines
4.6 KiB
Makefile
#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 1995, 1998, 2001, 2002 by Ralf Baechle
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# Copyright (C) 2004 Maciej W. Rozycki
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#
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#
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# Some DECstations need all possible sections of an ECOFF executable
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#
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ifdef CONFIG_MACH_DECSTATION
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e2eflag := -a
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endif
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#
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# Drop some uninteresting sections in the kernel.
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# This is only relevant for ELF kernels but doesn't hurt a.out
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#
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drop-sections := .reginfo .mdebug .comment .note .pdr .options .MIPS.options
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strip-flags := $(addprefix --remove-section=,$(drop-sections))
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hostprogs-y := elf2ecoff
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suffix-y := bin
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suffix-$(CONFIG_KERNEL_BZIP2) := bz2
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suffix-$(CONFIG_KERNEL_GZIP) := gz
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suffix-$(CONFIG_KERNEL_LZMA) := lzma
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suffix-$(CONFIG_KERNEL_LZO) := lzo
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targets := vmlinux.ecoff
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quiet_cmd_ecoff = ECOFF $@
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cmd_ecoff = $(obj)/elf2ecoff $(VMLINUX) $@ $(e2eflag)
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$(obj)/vmlinux.ecoff: $(obj)/elf2ecoff $(VMLINUX) FORCE
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$(call if_changed,ecoff)
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targets += vmlinux.bin
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quiet_cmd_bin = OBJCOPY $@
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cmd_bin = $(OBJCOPY) -O binary $(strip-flags) $(VMLINUX) $@
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$(obj)/vmlinux.bin: $(VMLINUX) FORCE
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$(call if_changed,bin)
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targets += vmlinux.srec
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quiet_cmd_srec = OBJCOPY $@
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cmd_srec = $(OBJCOPY) -S -O srec $(strip-flags) $(VMLINUX) $@
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$(obj)/vmlinux.srec: $(VMLINUX) FORCE
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$(call if_changed,srec)
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UIMAGE_LOADADDR = $(VMLINUX_LOAD_ADDRESS)
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UIMAGE_ENTRYADDR = $(VMLINUX_ENTRY_ADDRESS)
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#
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# Compressed vmlinux images
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#
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extra-y += vmlinux.bin.bz2
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extra-y += vmlinux.bin.gz
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extra-y += vmlinux.bin.lzma
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extra-y += vmlinux.bin.lzo
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$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
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$(call if_changed,bzip2)
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$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,gzip)
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$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
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$(call if_changed,lzma)
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$(obj)/vmlinux.bin.lzo: $(obj)/vmlinux.bin FORCE
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$(call if_changed,lzo)
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#
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# Compressed u-boot images
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#
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targets += uImage
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targets += uImage.bin
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targets += uImage.bz2
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targets += uImage.gz
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targets += uImage.lzma
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targets += uImage.lzo
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$(obj)/uImage.bin: $(obj)/vmlinux.bin FORCE
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$(call if_changed,uimage,none)
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$(obj)/uImage.bz2: $(obj)/vmlinux.bin.bz2 FORCE
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$(call if_changed,uimage,bzip2)
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$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE
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$(call if_changed,uimage,gzip)
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$(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma FORCE
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$(call if_changed,uimage,lzma)
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$(obj)/uImage.lzo: $(obj)/vmlinux.bin.lzo FORCE
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$(call if_changed,uimage,lzo)
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$(obj)/uImage: $(obj)/uImage.$(suffix-y)
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@ln -sf $(notdir $<) $@
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@echo ' Image $@ is ready'
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#
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# Flattened Image Tree (.itb) images
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#
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targets += vmlinux.itb
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targets += vmlinux.gz.itb
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targets += vmlinux.bz2.itb
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targets += vmlinux.lzma.itb
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targets += vmlinux.lzo.itb
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ifeq ($(ADDR_BITS),32)
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itb_addr_cells = 1
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endif
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ifeq ($(ADDR_BITS),64)
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itb_addr_cells = 2
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endif
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quiet_cmd_cpp_its_S = ITS $@
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cmd_cpp_its_S = $(CPP) $(cpp_flags) -P -C -o $@ $< \
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-DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
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-DVMLINUX_BINARY="\"$(3)\"" \
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-DVMLINUX_COMPRESSION="\"$(2)\"" \
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-DVMLINUX_LOAD_ADDRESS=$(VMLINUX_LOAD_ADDRESS) \
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-DVMLINUX_ENTRY_ADDRESS=$(VMLINUX_ENTRY_ADDRESS) \
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-DADDR_BITS=$(ADDR_BITS) \
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-DADDR_CELLS=$(itb_addr_cells)
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$(obj)/vmlinux.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
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$(call if_changed_dep,cpp_its_S,none,vmlinux.bin)
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$(obj)/vmlinux.gz.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
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$(call if_changed_dep,cpp_its_S,gzip,vmlinux.bin.gz)
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$(obj)/vmlinux.bz2.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
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$(call if_changed_dep,cpp_its_S,bzip2,vmlinux.bin.bz2)
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$(obj)/vmlinux.lzma.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
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$(call if_changed_dep,cpp_its_S,lzma,vmlinux.bin.lzma)
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$(obj)/vmlinux.lzo.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
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$(call if_changed_dep,cpp_its_S,lzo,vmlinux.bin.lzo)
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quiet_cmd_itb-image = ITB $@
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cmd_itb-image = \
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env PATH="$(objtree)/scripts/dtc:$(PATH)" \
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$(CONFIG_SHELL) $(MKIMAGE) \
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-D "-I dts -O dtb -p 500 \
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--include $(objtree)/arch/mips \
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--warning no-unit_address_vs_reg" \
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-f $(2) $@
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$(obj)/vmlinux.itb: $(obj)/vmlinux.its $(obj)/vmlinux.bin FORCE
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$(call if_changed,itb-image,$<)
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$(obj)/vmlinux.gz.itb: $(obj)/vmlinux.gz.its $(obj)/vmlinux.bin.gz FORCE
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$(call if_changed,itb-image,$<)
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$(obj)/vmlinux.bz2.itb: $(obj)/vmlinux.bz2.its $(obj)/vmlinux.bin.bz2 FORCE
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$(call if_changed,itb-image,$<)
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$(obj)/vmlinux.lzma.itb: $(obj)/vmlinux.lzma.its $(obj)/vmlinux.bin.lzma FORCE
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$(call if_changed,itb-image,$<)
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$(obj)/vmlinux.lzo.itb: $(obj)/vmlinux.lzo.its $(obj)/vmlinux.bin.lzo FORCE
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$(call if_changed,itb-image,$<)
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