/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
16variant-$(CONFIG_XTENSA_VARIANT_FSF)		:= fsf
17variant-$(CONFIG_XTENSA_VARIANT_DC232B)		:= dc232b
18variant-$(CONFIG_XTENSA_VARIANT_S6000)		:= s6000
19variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM)	:= custom
20
21VARIANT = $(variant-y)
22export VARIANT
23
24# Platform configuration
25
26platform-$(CONFIG_XTENSA_PLATFORM_XT2000)	:= xt2000
27platform-$(CONFIG_XTENSA_PLATFORM_ISS)		:= iss
28platform-$(CONFIG_XTENSA_PLATFORM_S6105)	:= s6105
29
30PLATFORM = $(platform-y)
31export PLATFORM
32
33# temporarily until string.h is fixed
34KBUILD_CFLAGS += -ffreestanding
35
36KBUILD_CFLAGS += -pipe -mlongcalls
37
38vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
39plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
40
41ifeq ($(KBUILD_SRC),)
42KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
43else
44KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
45endif
46
47KBUILD_DEFCONFIG := iss_defconfig
48
49# ramdisk/initrd support
50# You need a compressed ramdisk image, named ramdisk.gz in
51# arch/xtensa/boot/ramdisk
52
53core-$(CONFIG_EMBEDDED_RAMDISK)	+= arch/xtensa/boot/ramdisk/
54
55# Test for cross compiling
56
57ifneq ($(VARIANT),)
58  COMPILE_ARCH = $(shell uname -m)
59
60  ifneq ($(COMPILE_ARCH), xtensa)
61    ifndef CROSS_COMPILE
62      CROSS_COMPILE = xtensa_$(VARIANT)-
63    endif
64  endif
65endif
66
67# Only build variant and/or platform if it includes a Makefile
68
69buildvar := $(shell test -a $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
70buildplf := $(shell test -a $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
71
72# Find libgcc.a
73
74LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
75
76head-y		:= arch/xtensa/kernel/head.o
77core-y		+= arch/xtensa/kernel/ arch/xtensa/mm/
78core-y		+= $(buildvar) $(buildplf)
79
80libs-y		+= arch/xtensa/lib/ $(LIBGCC)
81
82boot		:= arch/xtensa/boot
83
84all: zImage
85
86bzImage : zImage
87
88zImage zImage.initrd: vmlinux
89	$(Q)$(MAKE) $(build)=$(boot) $@
90
91define archhelp
92  @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
93endef
94