[PATCH] i386: improve sched_clock() on i686
[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 = $(platform-y)
28 export PLATFORM
29
30 CFLAGS          += -pipe -mlongcalls
31
32 KBUILD_DEFCONFIG := iss_defconfig
33
34 # ramdisk/initrd support
35 # You need a compressed ramdisk image, named ramdisk.gz in
36 # arch/xtensa/boot/ramdisk
37
38 core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
39
40 # Test for cross compiling
41
42 ifneq ($(VARIANT),)
43   COMPILE_ARCH = $(shell uname -m)
44
45   ifneq ($(COMPILE_ARCH), xtensa)
46     ifndef CROSS_COMPILE
47       CROSS_COMPILE = xtensa_$(VARIANT)-
48     endif
49   endif
50 endif
51
52 #
53
54 LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
55
56 head-y          := arch/xtensa/kernel/head.o
57 core-y          += arch/xtensa/kernel/ arch/xtensa/mm/
58 ifneq ($(PLATFORM),)
59 core-y          += arch/xtensa/platform-$(PLATFORM)/
60 endif
61 libs-y          += arch/xtensa/lib/ $(LIBGCC)
62
63 boot            := arch/xtensa/boot
64
65 archinc         := include/asm-xtensa
66
67 archprepare: $(archinc)/.platform
68
69 # Update processor variant and platform symlinks if something which affects
70 # them changed.
71
72 $(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/auto.conf
73         @echo '  SYMLINK $(archinc)/variant -> $(archinc)/variant-$(VARIANT)'
74         $(Q)mkdir -p $(archinc)
75         $(Q)ln -fsn $(srctree)/$(archinc)/variant-$(VARIANT) $(archinc)/variant
76         @echo '  SYMLINK $(archinc)/platform -> $(archinc)/platform-$(PLATFORM)'
77         $(Q)ln -fsn $(srctree)/$(archinc)/platform-$(PLATFORM) $(archinc)/platform
78         @touch $@
79
80
81 all: zImage
82
83 bzImage : zImage
84
85 zImage zImage.initrd: vmlinux
86         $(Q)$(MAKE) $(build)=$(boot) $@
87
88 CLEAN_FILES     += arch/xtensa/vmlinux.lds                      \
89                    $(archinc)/platform $(archinc)/variant       \
90                    $(archinc)/.platform
91
92 define archhelp
93   @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
94 endef
95