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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 CPU=<xtensa_config> to use another default compiler.) | |
15 | ||
16 | cpu-$(CONFIG_XTENSA_CPU_LINUX_BE) := linux_be | |
17 | cpu-$(CONFIG_XTENSA_CPU_LINUX_CUSTOM) := linux_custom | |
18 | ||
19 | CPU = $(cpu-y) | |
20 | export CPU | |
21 | ||
22 | # Platform configuration | |
23 | ||
24 | platform-y := common | |
25 | platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 | |
26 | platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss | |
27 | ||
28 | PLATFORM = $(platform-y) | |
29 | export PLATFORM | |
30 | ||
31 | #LDFLAGS_vmlinux := -T$(word 1,$(LINKSCRIPT)) | |
32 | AFLAGS_vmlinux.lds.o := -Uxtensa | |
33 | CPPFLAGS += -Iarch/xtensa -Iinclude/asm -mlongcalls -g | |
34 | AFLAGS += -Iarch/xtensa -Iinclude/asm | |
35 | CPP = $(CC) -E $(CFLAGS) | |
36 | ||
37 | cflags-y += -Iarch/xtensa -pipe -mlongcalls | |
38 | ||
39 | ||
40 | KBUILD_DEFCONFIG := common_defconfig | |
41 | ||
42 | # ramdisk/initrd support | |
43 | # You need a compressed ramdisk image, named ramdisk.gz in | |
44 | # arch/xtensa/boot/ramdisk | |
45 | ||
46 | core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/ | |
47 | ||
48 | # Test for cross compiling | |
49 | ||
50 | ifneq ($(CPU),) | |
51 | COMPILE_ARCH = $(shell uname -m) | |
52 | ||
53 | ifneq ($(COMPILE_ARCH), xtensa) | |
54 | ifndef CROSS_COMPILE | |
55 | CROSS_COMPILE = xtensa_$(CPU)- | |
56 | endif | |
57 | endif | |
58 | endif | |
59 | ||
60 | # | |
61 | ||
62 | LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) | |
63 | ||
64 | head-y := arch/xtensa/kernel/head.o | |
65 | core-y += arch/xtensa/kernel/ \ | |
66 | arch/xtensa/mm/ arch/xtensa/platform-$(PLATFORM)/ | |
67 | libs-y += arch/xtensa/lib/ $(LIBGCC) | |
68 | ||
69 | boot := arch/xtensa/boot | |
70 | ||
71 | arch/xtensa/kernel/asm-offsets.s: \ | |
72 | arch/xtensa/kernel/asm-offsets.c \ | |
73 | include/asm-xtensa/.platform | |
74 | ||
75 | include/asm-xtensa/offsets.h: arch/xtensa/kernel/asm-offsets.s | |
76 | $(call filechk,gen-asm-offsets) | |
77 | ||
78 | prepare: include/asm-xtensa/.platform include/asm-xtensa/offsets.h | |
79 | ||
80 | # Update machine cpu and platform symlinks if something which affects | |
81 | # them changed. | |
82 | ||
83 | include/asm-xtensa/.platform: $(wildcard include/config/arch/*.h) | |
84 | @echo ' Setting up cpu ($(CPU)) and platform ($(PLATFORM)) symlinks' | |
85 | $(Q)rm -f include/asm-xtensa/platform | |
86 | $(Q)rm -f include/asm-xtensa/xtensa/config | |
87 | $(Q)(cd include/asm-xtensa/; ln -sf platform-$(PLATFORM) platform) | |
88 | $(Q)(cd include/asm-xtensa/xtensa; ln -sf config-$(CPU) config) | |
89 | ||
90 | all: zImage | |
91 | ||
92 | bzImage : zImage | |
93 | ||
94 | zImage zImage.initrd: vmlinux | |
95 | $(Q)$(MAKE) $(build)=$(boot) $@ | |
96 | ||
97 | CLEAN_FILES += arch/xtensa/vmlinux.lds include/asm-xtensa/offset.h | |
98 | ||
99 | define archhelp | |
100 | @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' | |
101 | endef | |
102 |