1# $Id: Makefile,v 1.1.1.1 2007-08-03 18:52:17 $
2# Makefile for the Sparc boot stuff.
3#
4# Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
5# Copyright (C) 1997,1998 Jakub Jelinek (jj@ultra.linux.cz)
6
7ROOT_IMG	:= /usr/src/root.img
8ELFTOAOUT	:= elftoaout
9
10hostprogs-y	:= piggyback btfixupprep
11targets		:= tftpboot.img btfix.o btfix.S image
12
13quiet_cmd_elftoaout	= ELFTOAOUT $@
14      cmd_elftoaout	= $(ELFTOAOUT) $(obj)/image -o $@
15quiet_cmd_piggy		= PIGGY   $@
16      cmd_piggy		= $(obj)/piggyback $@ $(obj)/System.map $(ROOT_IMG)
17quiet_cmd_btfix		= BTFIX   $@
18      cmd_btfix		= $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
19quiet_cmd_sysmap        = SYSMAP  $(obj)/System.map
20      cmd_sysmap        = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
21quiet_cmd_image = LD      $@
22      cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@
23
24define rule_image
25	$(if $($(quiet)cmd_image),               \
26	  echo '  $($(quiet)cmd_image)' &&)      \
27	  $(cmd_image);                          \
28	$(if $($(quiet)cmd_sysmap),              \
29	  echo '  $($(quiet)cmd_sysmap)' &&)  \
30	$(cmd_sysmap) $@ $(obj)/System.map;      \
31	if [ $$? -ne 0 ]; then                   \
32		rm -f $@;                        \
33		/bin/false;                      \
34	fi;                                      \
35	echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd
36endef
37
38BTOBJS := $(HEAD_Y) $(INIT_Y)
39BTLIBS := $(CORE_Y) $(LIBS_Y) $(DRIVERS_Y) $(NET_Y)
40LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \
41                  --start-group $(BTLIBS) --end-group \
42                  $(kallsyms.o) $(obj)/btfix.o
43
44# Link the final image including btfixup'ed symbols.
45# This is a replacement for the link done in the top-level Makefile.
46# Note: No dependency on the prerequisite files since that would require
47# make to try check if they are updated - and due to changes
48# in gcc options (path for example) this would result in
49# these files being recompiled for each build.
50$(obj)/image: $(obj)/btfix.o FORCE
51	$(call if_changed_rule,image)
52
53$(obj)/tftpboot.img: $(obj)/piggyback $(obj)/System.map $(obj)/image FORCE
54	$(call if_changed,elftoaout)
55	$(call if_changed,piggy)
56
57$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
58	$(call if_changed,btfix)
59