Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
38KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
39
40vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
41plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
42
43ifeq ($(KBUILD_SRC),)
44KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
45else
46KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
47endif
48
49KBUILD_DEFCONFIG := iss_defconfig
50
51# ramdisk/initrd support
52# You need a compressed ramdisk image, named ramdisk.gz in
53# arch/xtensa/boot/ramdisk
54
55core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
56
57# Test for cross compiling
58
59ifneq ($(VARIANT),)
60 COMPILE_ARCH = $(shell uname -m)
61
62 ifneq ($(COMPILE_ARCH), xtensa)
63 ifndef CROSS_COMPILE
64 CROSS_COMPILE = xtensa_$(VARIANT)-
65 endif
66 endif
67endif
68
69# Only build variant and/or platform if it includes a Makefile
70
71buildvar := $(shell test -a $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
72buildplf := $(shell test -a $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
73
74# Find libgcc.a
75
76LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
77
78head-y := arch/xtensa/kernel/head.o
79core-y += arch/xtensa/kernel/ arch/xtensa/mm/
80core-y += $(buildvar) $(buildplf)
81
82libs-y += arch/xtensa/lib/ $(LIBGCC)
83
84boot := arch/xtensa/boot
85
86all: zImage
87
88bzImage : zImage
89
90zImage zImage.initrd: vmlinux
91 $(Q)$(MAKE) $(build)=$(boot) $@
92
93define archhelp
94 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
95endef
96