116 lines
3.7 KiB
Makefile
116 lines
3.7 KiB
Makefile
# Makefile for the Sparc boot stuff.
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#
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# Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
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# Copyright (C) 1997,1998 Jakub Jelinek (jj@ultra.linux.cz)
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ROOT_IMG := /usr/src/root.img
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ELFTOAOUT := elftoaout
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MKIMAGE := $(srctree)/scripts/mkuboot.sh
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hostprogs-y := piggyback btfixupprep
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targets := tftpboot.img btfix.o btfix.S image zImage vmlinux.aout
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clean-files := System.map
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quiet_cmd_elftoaout = ELFTOAOUT $@
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cmd_elftoaout = $(ELFTOAOUT) $(obj)/image -o $@
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quiet_cmd_piggy = PIGGY $@
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cmd_piggy = $(obj)/piggyback $(BITS) $@ System.map $(ROOT_IMG)
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quiet_cmd_strip = STRIP $@
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cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $< -o $@
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ifeq ($(CONFIG_SPARC32),y)
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quiet_cmd_btfix = BTFIX $@
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cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
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quiet_cmd_sysmap = SYSMAP $(obj)/System.map
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cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
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quiet_cmd_image = LD $@
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cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@
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define rule_image
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$(if $($(quiet)cmd_image), \
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echo ' $($(quiet)cmd_image)' &&) \
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$(cmd_image); \
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$(if $($(quiet)cmd_sysmap), \
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echo ' $($(quiet)cmd_sysmap)' &&) \
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$(cmd_sysmap) $@ $(obj)/System.map; \
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if [ $$? -ne 0 ]; then \
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rm -f $@; \
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/bin/false; \
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fi; \
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echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd
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endef
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BTOBJS := $(patsubst %/, %/built-in.o, $(VMLINUX_INIT))
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BTLIBS := $(patsubst %/, %/built-in.o, $(VMLINUX_MAIN))
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LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \
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--start-group $(BTLIBS) --end-group \
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$(kallsyms.o) $(obj)/btfix.o
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# Link the final image including btfixup'ed symbols.
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# This is a replacement for the link done in the top-level Makefile.
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# Note: No dependency on the prerequisite files since that would require
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# make to try check if they are updated - and due to changes
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# in gcc options (path for example) this would result in
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# these files being recompiled for each build.
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$(obj)/image: $(obj)/btfix.o FORCE
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$(call if_changed_rule,image)
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$(obj)/zImage: $(obj)/image
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$(call if_changed,strip)
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@echo ' kernel: $@ is ready'
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$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
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$(call if_changed,btfix)
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endif
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ifeq ($(CONFIG_SPARC64),y)
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# Actual linking
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$(obj)/image: vmlinux FORCE
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$(call if_changed,strip)
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@echo ' kernel: $@ is ready'
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$(obj)/zImage: $(obj)/image
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$(call if_changed,gzip)
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@echo ' kernel: $@ is ready'
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$(obj)/vmlinux.aout: vmlinux FORCE
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$(call if_changed,elftoaout)
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@echo ' kernel: $@ is ready'
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else
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# The following lines make a readable image for U-Boot.
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# uImage - Binary file read by U-boot
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# uImage.o - object file of uImage for loading with a
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# flash programmer understanding ELF.
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OBJCOPYFLAGS_image.bin := -S -O binary -R .note -R .comment
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$(obj)/image.bin: $(obj)/image FORCE
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$(call if_changed,objcopy)
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$(obj)/image.gz: $(obj)/image.bin
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$(call if_changed,gzip)
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quiet_cmd_uimage = UIMAGE $@
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cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A sparc -O linux -T kernel \
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-C gzip -a $(CONFIG_UBOOT_LOAD_ADDR) \
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-e $(CONFIG_UBOOT_ENTRY_ADDR) -n 'Linux-$(KERNELRELEASE)' \
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-d $< $@
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quiet_cmd_uimage.o = UIMAGE.O $@
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cmd_uimage.o = $(LD) -Tdata $(CONFIG_UBOOT_FLASH_ADDR) \
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-r -b binary $@ -o $@.o
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targets += uImage
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$(obj)/uImage: $(obj)/image.gz
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$(call if_changed,uimage)
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$(call if_changed,uimage.o)
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@echo ' Image $@ is ready'
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endif
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$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback System.map $(ROOT_IMG) FORCE
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$(call if_changed,elftoaout)
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$(call if_changed,piggy)
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