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4defe4559e
Add a uImage build target for MIPS, which builds uImage.gz (a U-Boot image of vmlinux.bin.gz), and then symlinks it to uImage. This allows for the use of other compression algorithms in future, and is how a few other architectures do it. It's enabled conditionally on load-y >= 0xffffffff80000000 which hopefully allows 64bit kernels to also work as long as the load and entry address can be represented by the 32bit addresses in the U-Boot image format. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5795/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
58 lines
1.6 KiB
Makefile
58 lines
1.6 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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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 = $(VMLINUX_ENTRY_ADDRESS)
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$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,gzip)
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targets += uImage.gz
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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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targets += uImage
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$(obj)/uImage: $(obj)/uImage.gz FORCE
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@ln -sf $(notdir $<) $@
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@echo ' Image $@ is ready'
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