tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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_32 piggyback_64 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 $@
15
16ifeq ($(CONFIG_SPARC32),y)
17quiet_cmd_piggy = PIGGY $@
18 cmd_piggy = $(obj)/piggyback_32 $@ System.map $(ROOT_IMG)
19quiet_cmd_btfix = BTFIX $@
20 cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
21quiet_cmd_sysmap = SYSMAP $(obj)/System.map
22 cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
23quiet_cmd_image = LD $@
24 cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@
25quiet_cmd_strip = STRIP $@
26 cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $(obj)/image -o $@
27
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 $(call if_changed,strip)
60
61$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_32 System.map $(ROOT_IMG) FORCE
62 $(call if_changed,elftoaout)
63 $(call if_changed,piggy)
64
65$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
66 $(call if_changed,btfix)
67
68endif
69
70ifeq ($(CONFIG_SPARC64),y)
71quiet_cmd_piggy = PIGGY $@
72 cmd_piggy = $(obj)/piggyback_64 $@ System.map $(ROOT_IMG)
73quiet_cmd_strip = STRIP $@
74 cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start vmlinux -o $@
75
76
77# Actual linking
78$(obj)/image: vmlinux FORCE
79 $(call if_changed,strip)
80 @echo ' kernel: $@ is ready'
81
82$(obj)/zImage: $(obj)/image
83 $(call if_changed,gzip)
84
85$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_64 System.map $(ROOT_IMG) FORCE
86 $(call if_changed,elftoaout)
87 $(call if_changed,piggy)
88 @echo ' kernel: $@ is ready'
89
90$(obj)/vmlinux.aout: vmlinux FORCE
91 $(call if_changed,elftoaout)
92 @echo ' kernel: $@ is ready'
93endif
94