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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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a0ab36689a
This introduces some much overdue chainsawing of the fixed PMB support. fixed PMB was introduced initially to work around the fact that dynamic PMB mode was relatively broken, though they were never intended to converge. The main areas where there are differences are whether the system is booted in 29-bit mode or 32-bit mode, and whether legacy mappings are to be preserved. Any system booting in true 32-bit mode will not care about legacy mappings, so these are roughly decoupled. Regardless of the entry point, PMB and 32BIT are directly related as far as the kernel is concerned, so we also switch back to having one select the other. With legacy mappings iterated through and applied in the initialization path it's now possible to finally merge the two implementations and permit dynamic remapping overtop of remaining entries regardless of whether boot mappings are crafted by hand or inherited from the boot loader. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
110 lines
3.1 KiB
Makefile
110 lines
3.1 KiB
Makefile
#
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# arch/sh/boot/Makefile
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#
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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) 1999 Stuart Menefy
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#
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MKIMAGE := $(srctree)/scripts/mkuboot.sh
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#
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# Assign safe dummy values if these variables are not defined,
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# in order to suppress error message.
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#
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CONFIG_PAGE_OFFSET ?= 0x80000000
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CONFIG_MEMORY_START ?= 0x0c000000
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CONFIG_BOOT_LINK_OFFSET ?= 0x00800000
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CONFIG_ZERO_PAGE_OFFSET ?= 0x00001000
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CONFIG_ENTRY_OFFSET ?= 0x00001000
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suffix-y := bin
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suffix-$(CONFIG_KERNEL_GZIP) := gz
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suffix-$(CONFIG_KERNEL_BZIP2) := bz2
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suffix-$(CONFIG_KERNEL_LZMA) := lzma
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suffix-$(CONFIG_KERNEL_LZO) := lzo
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targets := zImage vmlinux.srec romImage uImage uImage.srec uImage.gz \
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uImage.bz2 uImage.lzma uImage.lzo uImage.bin
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extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
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vmlinux.bin.lzo
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subdir- := compressed romimage
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$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
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$(call if_changed,objcopy)
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@echo ' Kernel: $@ is ready'
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$(obj)/compressed/vmlinux: FORCE
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$(Q)$(MAKE) $(build)=$(obj)/compressed $@
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$(obj)/romImage: $(obj)/romimage/vmlinux FORCE
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$(call if_changed,objcopy)
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@echo ' Kernel: $@ is ready'
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$(obj)/romimage/vmlinux: $(obj)/zImage FORCE
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$(Q)$(MAKE) $(build)=$(obj)/romimage $@
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KERNEL_MEMORY := $(shell /bin/bash -c 'printf "0x%08x" \
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$$[$(CONFIG_MEMORY_START) & 0x1fffffff]')
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KERNEL_LOAD := $(shell /bin/bash -c 'printf "0x%08x" \
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$$[$(CONFIG_PAGE_OFFSET) + \
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$(KERNEL_MEMORY) + \
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$(CONFIG_ZERO_PAGE_OFFSET)]')
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KERNEL_ENTRY := $(shell /bin/bash -c 'printf "0x%08x" \
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$$[$(CONFIG_PAGE_OFFSET) + \
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$(KERNEL_MEMORY) + \
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$(CONFIG_ZERO_PAGE_OFFSET) + $(CONFIG_ENTRY_OFFSET)]')
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quiet_cmd_uimage = UIMAGE $@
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cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A sh -O linux -T kernel \
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-C $(2) -a $(KERNEL_LOAD) -e $(KERNEL_ENTRY) \
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-n 'Linux-$(KERNELRELEASE)' -d $< $@
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$(obj)/vmlinux.bin: vmlinux FORCE
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$(call if_changed,objcopy)
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$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,gzip)
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$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
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$(call if_changed,bzip2)
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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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$(obj)/uImage.bz2: $(obj)/vmlinux.bin.bz2
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$(call if_changed,uimage,bzip2)
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$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz
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$(call if_changed,uimage,gzip)
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$(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma
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$(call if_changed,uimage,lzma)
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$(obj)/uImage.lzo: $(obj)/vmlinux.bin.lzo
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$(call if_changed,uimage,lzo)
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$(obj)/uImage.bin: $(obj)/vmlinux.bin
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$(call if_changed,uimage,none)
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OBJCOPYFLAGS_vmlinux.srec := -I binary -O srec
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$(obj)/vmlinux.srec: $(obj)/compressed/vmlinux
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$(call if_changed,objcopy)
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OBJCOPYFLAGS_uImage.srec := -I binary -O srec
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$(obj)/uImage.srec: $(obj)/uImage
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$(call if_changed,objcopy)
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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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export CONFIG_PAGE_OFFSET CONFIG_MEMORY_START CONFIG_BOOT_LINK_OFFSET \
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CONFIG_ZERO_PAGE_OFFSET CONFIG_ENTRY_OFFSET KERNEL_MEMORY suffix-y
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