Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
[linux-2.6] / arch / xtensa / Makefile
1 #
2 # This file is subject to the terms and conditions of the GNU General Public
3 # License.  See the file "COPYING" in the main directory of this archive
4 # for more details.
5 #
6 # Copyright (C) 2001 - 2005  Tensilica Inc.
7 #
8 # This file is included by the global makefile so that you can add your own
9 # architecture-specific flags and dependencies. Remember to do have actions
10 # for "archclean" and "archdep" for cleaning up and making dependencies for
11 # this architecture
12
13 # Core configuration.
14 # (Use VAR=<xtensa_config> to use another default compiler.)
15
16 variant-$(CONFIG_XTENSA_VARIANT_FSF)            := fsf
17 variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM)   := custom
18
19 VARIANT = $(variant-y)
20 export VARIANT
21
22 # Platform configuration
23
24 platform-$(CONFIG_XTENSA_PLATFORM_XT2000)       := xt2000
25 platform-$(CONFIG_XTENSA_PLATFORM_ISS)          := iss
26
27 PLATFORM = $(platform-y)
28 export PLATFORM
29
30 # temporarily until string.h is fixed
31 cflags-y += -ffreestanding
32
33 cflags-y += -pipe -mlongcalls
34
35 CFLAGS  += $(cflags-y)
36
37 KBUILD_DEFCONFIG := iss_defconfig
38
39 # ramdisk/initrd support
40 # You need a compressed ramdisk image, named ramdisk.gz in
41 # arch/xtensa/boot/ramdisk
42
43 core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
44
45 # Test for cross compiling
46
47 ifneq ($(VARIANT),)
48   COMPILE_ARCH = $(shell uname -m)
49
50   ifneq ($(COMPILE_ARCH), xtensa)
51     ifndef CROSS_COMPILE
52       CROSS_COMPILE = xtensa_$(VARIANT)-
53     endif
54   endif
55 endif
56
57 #
58
59 LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
60
61 head-y          := arch/xtensa/kernel/head.o
62 core-y          += arch/xtensa/kernel/ arch/xtensa/mm/
63 ifneq ($(PLATFORM),)
64 core-y          += arch/xtensa/platform-$(PLATFORM)/
65 endif
66 libs-y          += arch/xtensa/lib/ $(LIBGCC)
67
68 boot            := arch/xtensa/boot
69
70 archinc         := include/asm-xtensa
71
72 archprepare: $(archinc)/.platform
73
74 # Update processor variant and platform symlinks if something which affects
75 # them changed.
76
77 $(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/auto.conf
78         @echo '  SYMLINK $(archinc)/variant -> $(archinc)/variant-$(VARIANT)'
79         $(Q)mkdir -p $(archinc)
80         $(Q)ln -fsn $(srctree)/$(archinc)/variant-$(VARIANT) $(archinc)/variant
81         @echo '  SYMLINK $(archinc)/platform -> $(archinc)/platform-$(PLATFORM)'
82         $(Q)ln -fsn $(srctree)/$(archinc)/platform-$(PLATFORM) $(archinc)/platform
83         @touch $@
84
85
86 all: zImage
87
88 bzImage : zImage
89
90 zImage zImage.initrd: vmlinux
91         $(Q)$(MAKE) $(build)=$(boot) $@
92
93 CLEAN_FILES     += arch/xtensa/vmlinux.lds                      \
94                    $(archinc)/platform $(archinc)/variant       \
95                    $(archinc)/.platform
96
97 define archhelp
98   @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
99 endef
100