1# Makefile for the Sparc boot stuff. 2# 3# Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) 4# Copyright (C) 1997,1998 Jakub Jelinek (jj@ultra.linux.cz) 5 6ROOT_IMG := /usr/src/root.img 7ELFTOAOUT := elftoaout 8MKIMAGE := $(srctree)/scripts/mkuboot.sh 9 10hostprogs-y := piggyback btfixupprep 11targets := tftpboot.img btfix.o btfix.S image zImage vmlinux.aout 12clean-files := System.map 13 14quiet_cmd_elftoaout = ELFTOAOUT $@ 15 cmd_elftoaout = $(ELFTOAOUT) $(obj)/image -o $@ 16quiet_cmd_piggy = PIGGY $@ 17 cmd_piggy = $(obj)/piggyback $(BITS) $@ System.map $(ROOT_IMG) 18quiet_cmd_strip = STRIP $@ 19 cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $< -o $@ 20 21ifeq ($(CONFIG_SPARC32),y) 22quiet_cmd_btfix = BTFIX $@ 23 cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@ 24quiet_cmd_sysmap = SYSMAP $(obj)/System.map 25 cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap 26quiet_cmd_image = LD $@ 27 cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@ 28 29define rule_image 30 $(if $($(quiet)cmd_image), \ 31 echo ' $($(quiet)cmd_image)' &&) \ 32 $(cmd_image); \ 33 $(if $($(quiet)cmd_sysmap), \ 34 echo ' $($(quiet)cmd_sysmap)' &&) \ 35 $(cmd_sysmap) $@ $(obj)/System.map; \ 36 if [ $$? -ne 0 ]; then \ 37 rm -f $@; \ 38 /bin/false; \ 39 fi; \ 40 echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd 41endef 42 43BTOBJS := $(patsubst %/, %/built-in.o, $(VMLINUX_INIT)) 44BTLIBS := $(patsubst %/, %/built-in.o, $(VMLINUX_MAIN)) 45LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \ 46 --start-group $(BTLIBS) --end-group \ 47 $(kallsyms.o) $(obj)/btfix.o 48 49# Link the final image including btfixup'ed symbols. 50# This is a replacement for the link done in the top-level Makefile. 51# Note: No dependency on the prerequisite files since that would require 52# make to try check if they are updated - and due to changes 53# in gcc options (path for example) this would result in 54# these files being recompiled for each build. 55$(obj)/image: $(obj)/btfix.o FORCE 56 $(call if_changed_rule,image) 57 58$(obj)/zImage: $(obj)/image 59 $(call if_changed,strip) 60 @echo ' kernel: $@ is ready' 61 62$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE 63 $(call if_changed,btfix) 64 65endif 66 67ifeq ($(CONFIG_SPARC64),y) 68 69# Actual linking 70$(obj)/image: vmlinux FORCE 71 $(call if_changed,strip) 72 @echo ' kernel: $@ is ready' 73 74$(obj)/zImage: $(obj)/image 75 $(call if_changed,gzip) 76 @echo ' kernel: $@ is ready' 77 78$(obj)/vmlinux.aout: vmlinux FORCE 79 $(call if_changed,elftoaout) 80 @echo ' kernel: $@ is ready' 81else 82 83# The following lines make a readable image for U-Boot. 84# uImage - Binary file read by U-boot 85# uImage.o - object file of uImage for loading with a 86# flash programmer understanding ELF. 87 88OBJCOPYFLAGS_image.bin := -S -O binary -R .note -R .comment 89$(obj)/image.bin: $(obj)/image FORCE 90 $(call if_changed,objcopy) 91 92$(obj)/image.gz: $(obj)/image.bin 93 $(call if_changed,gzip) 94 95quiet_cmd_uimage = UIMAGE $@ 96 cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A sparc -O linux -T kernel \ 97 -C gzip -a $(CONFIG_UBOOT_LOAD_ADDR) \ 98 -e $(CONFIG_UBOOT_ENTRY_ADDR) -n 'Linux-$(KERNELRELEASE)' \ 99 -d $< $@ 100 101quiet_cmd_uimage.o = UIMAGE.O $@ 102 cmd_uimage.o = $(LD) -Tdata $(CONFIG_UBOOT_FLASH_ADDR) \ 103 -r -b binary $@ -o $@.o 104 105targets += uImage 106$(obj)/uImage: $(obj)/image.gz 107 $(call if_changed,uimage) 108 $(call if_changed,uimage.o) 109 @echo ' Image $@ is ready' 110 111endif 112 113$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback System.map $(ROOT_IMG) FORCE 114 $(call if_changed,elftoaout) 115 $(call if_changed,piggy) 116