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 8 9hostprogs-y := piggyback btfixupprep 10targets := tftpboot.img btfix.o btfix.S image zImage vmlinux.aout 11clean-files := System.map 12 13quiet_cmd_elftoaout = ELFTOAOUT $@ 14 cmd_elftoaout = $(ELFTOAOUT) $(obj)/image -o $@ 15quiet_cmd_piggy = PIGGY $@ 16 cmd_piggy = $(obj)/piggyback $(BITS) $@ System.map $(ROOT_IMG) 17quiet_cmd_strip = STRIP $@ 18 cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $< -o $@ 19 20ifeq ($(CONFIG_SPARC32),y) 21quiet_cmd_btfix = BTFIX $@ 22 cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@ 23quiet_cmd_sysmap = SYSMAP $(obj)/System.map 24 cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap 25quiet_cmd_image = LD $@ 26 cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@ 27 28define rule_image 29 $(if $($(quiet)cmd_image), \ 30 echo ' $($(quiet)cmd_image)' &&) \ 31 $(cmd_image); \ 32 $(if $($(quiet)cmd_sysmap), \ 33 echo ' $($(quiet)cmd_sysmap)' &&) \ 34 $(cmd_sysmap) $@ $(obj)/System.map; \ 35 if [ $$? -ne 0 ]; then \ 36 rm -f $@; \ 37 /bin/false; \ 38 fi; \ 39 echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd 40endef 41 42BTOBJS := $(patsubst %/, %/built-in.o, $(VMLINUX_INIT)) 43BTLIBS := $(patsubst %/, %/built-in.o, $(VMLINUX_MAIN)) 44LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \ 45 --start-group $(BTLIBS) --end-group \ 46 $(kallsyms.o) $(obj)/btfix.o 47 48# Link the final image including btfixup'ed symbols. 49# This is a replacement for the link done in the top-level Makefile. 50# Note: No dependency on the prerequisite files since that would require 51# make to try check if they are updated - and due to changes 52# in gcc options (path for example) this would result in 53# these files being recompiled for each build. 54$(obj)/image: $(obj)/btfix.o FORCE 55 $(call if_changed_rule,image) 56 57$(obj)/zImage: $(obj)/image 58 $(call if_changed,strip) 59 @echo ' kernel: $@ is ready' 60 61$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE 62 $(call if_changed,btfix) 63 64endif 65 66ifeq ($(CONFIG_SPARC64),y) 67 68# Actual linking 69$(obj)/image: vmlinux FORCE 70 $(call if_changed,strip) 71 @echo ' kernel: $@ is ready' 72 73$(obj)/zImage: $(obj)/image 74 $(call if_changed,gzip) 75 @echo ' kernel: $@ is ready' 76 77$(obj)/vmlinux.aout: vmlinux FORCE 78 $(call if_changed,elftoaout) 79 @echo ' kernel: $@ is ready' 80endif 81 82$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback System.map $(ROOT_IMG) FORCE 83 $(call if_changed,elftoaout) 84 $(call if_changed,piggy) 85