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