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Linus Torvalds1da177e2005-04-16 15:20:36 -07001# This file is included by the global makefile so that you can add your own
2# architecture-specific flags and dependencies.
3#
4# This file is subject to the terms and conditions of the GNU General Public
5# License. See the file "COPYING" in the main directory of this archive
6# for more details.
7#
8# Copyright (C) 1994 by Linus Torvalds
9# Changes for PPC by Gary Thomas
10# Rewritten by Cort Dougan and Paul Mackerras
11#
12
13# This must match PAGE_OFFSET in include/asm-ppc/page.h.
14KERNELLOAD := $(CONFIG_KERNEL_START)
15
16HAS_BIARCH := $(call cc-option-yn, -m32)
17ifeq ($(HAS_BIARCH),y)
18AS := $(AS) -a32
19LD := $(LD) -m elf32ppc
20CC := $(CC) -m32
21endif
22
23LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic
Stephen Rothwellb35b7072005-09-11 00:00:14 +100024# The -Iarch/$(ARCH)/include is temporary while we are merging
25CPPFLAGS += -Iarch/$(ARCH) -Iarch/$(ARCH)/include
Sam Ravnborg222d3942007-10-15 21:59:31 +020026KBUILD_AFLAGS += -Iarch/$(ARCH)
Sam Ravnborga0f97e02007-10-14 22:21:35 +020027KBUILD_CFLAGS += -Iarch/$(ARCH) -msoft-float -pipe \
Linus Torvalds1da177e2005-04-16 15:20:36 -070028 -ffixed-r2 -mmultiple
Lee Nicks9e3699e2005-10-28 17:46:09 -070029
30# No AltiVec instruction when building kernel
Sam Ravnborga0f97e02007-10-14 22:21:35 +020031KBUILD_CFLAGS += $(call cc-option, -mno-altivec)
Lee Nicks9e3699e2005-10-28 17:46:09 -070032
Sam Ravnborga0f97e02007-10-14 22:21:35 +020033CPP = $(CC) -E $(KBUILD_CFLAGS)
Stephen Rothwell45e2a6e2005-08-29 13:15:50 +100034# Temporary hack until we have migrated to asm-powerpc
Stephen Rothwellb35b7072005-09-11 00:00:14 +100035LINUXINCLUDE += -Iarch/$(ARCH)/include
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
37CHECKFLAGS += -D__powerpc__
38
Kumar Gala33d9e9b2005-06-25 14:54:37 -070039ifndef CONFIG_FSL_BOOKE
Sam Ravnborga0f97e02007-10-14 22:21:35 +020040KBUILD_CFLAGS += -mstring
Linus Torvalds1da177e2005-04-16 15:20:36 -070041endif
42
Linus Torvalds1da177e2005-04-16 15:20:36 -070043cpu-as-$(CONFIG_4xx) += -Wa,-m405
44cpu-as-$(CONFIG_6xx) += -Wa,-maltivec
Linus Torvalds1da177e2005-04-16 15:20:36 -070045cpu-as-$(CONFIG_E500) += -Wa,-me500
Kumar Gala33d9e9b2005-06-25 14:54:37 -070046cpu-as-$(CONFIG_E200) += -Wa,-me200
Linus Torvalds1da177e2005-04-16 15:20:36 -070047
Sam Ravnborg222d3942007-10-15 21:59:31 +020048KBUILD_AFLAGS += $(cpu-as-y)
Sam Ravnborga0f97e02007-10-14 22:21:35 +020049KBUILD_CFLAGS += $(cpu-as-y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
51# Default to the common case.
52KBUILD_DEFCONFIG := common_defconfig
53
54head-y := arch/ppc/kernel/head.o
55head-$(CONFIG_8xx) := arch/ppc/kernel/head_8xx.o
56head-$(CONFIG_4xx) := arch/ppc/kernel/head_4xx.o
57head-$(CONFIG_44x) := arch/ppc/kernel/head_44x.o
58head-$(CONFIG_FSL_BOOKE) := arch/ppc/kernel/head_fsl_booke.o
59
Paul Mackerrasfd582ec2005-10-11 22:08:12 +100060head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
Paul Mackerrasfd582ec2005-10-11 22:08:12 +100062core-y += arch/ppc/kernel/ arch/powerpc/kernel/ \
63 arch/ppc/platforms/ \
Paul Mackerras25635c72005-10-26 16:36:55 +100064 arch/ppc/mm/ arch/ppc/lib/ \
David Gibsona0e60b22005-11-01 17:28:10 +110065 arch/ppc/syslib/ arch/powerpc/sysdev/ \
66 arch/powerpc/lib/
Linus Torvalds1da177e2005-04-16 15:20:36 -070067core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/
68core-$(CONFIG_83xx) += arch/ppc/platforms/83xx/
69core-$(CONFIG_85xx) += arch/ppc/platforms/85xx/
Kumar Gala5cd27202006-03-27 23:43:27 -060070core-$(CONFIG_MATH_EMULATION) += arch/powerpc/math-emu/
Linus Torvalds1da177e2005-04-16 15:20:36 -070071core-$(CONFIG_XMON) += arch/ppc/xmon/
Linus Torvalds1da177e2005-04-16 15:20:36 -070072drivers-$(CONFIG_8xx) += arch/ppc/8xx_io/
73drivers-$(CONFIG_4xx) += arch/ppc/4xx_io/
74drivers-$(CONFIG_CPM2) += arch/ppc/8260_io/
75
Stephen Rothwell86a5cdd2005-09-19 23:24:08 +100076drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
Linus Torvalds1da177e2005-04-16 15:20:36 -070077
78BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
79
Paul Smith4f193362006-03-05 17:14:10 -050080PHONY += $(BOOT_TARGETS)
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
82all: uImage zImage
83
84CPPFLAGS_vmlinux.lds := -Upowerpc
85
86# All the instructions talk about "make bzImage".
87bzImage: zImage
88
89boot := arch/$(ARCH)/boot
90
91$(BOOT_TARGETS): vmlinux
92 $(Q)$(MAKE) $(build)=$(boot) $@
93
94uImage: vmlinux
95 $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
96
97define archhelp
98 @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
99 @echo ' uImage - Create a bootable image for U-Boot / PPCBoot'
100 @echo ' install - Install kernel using'
101 @echo ' (your) ~/bin/installkernel or'
102 @echo ' (distribution) /sbin/installkernel or'
103 @echo ' install to $$(INSTALL_PATH) and run lilo'
104 @echo ' *_defconfig - Select default config from arch/$(ARCH)/ppc/configs'
105endef
106
107archclean:
108 $(Q)$(MAKE) $(clean)=arch/ppc/boot
Stephen Rothwellb35b7072005-09-11 00:00:14 +1000109 # Temporary hack until we have migrated to asm-powerpc
110 $(Q)rm -rf arch/$(ARCH)/include
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111
Sam Ravnborg5bb78262005-09-11 22:30:22 +0200112archprepare: checkbin
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
Stephen Rothwell45e2a6e2005-08-29 13:15:50 +1000114# Temporary hack until we have migrated to asm-powerpc
Stephen Rothwellb35b7072005-09-11 00:00:14 +1000115include/asm: arch/$(ARCH)/include/asm
116arch/$(ARCH)/include/asm:
117 $(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi
118 $(Q)ln -fsn $(srctree)/include/asm-powerpc arch/$(ARCH)/include/asm
Stephen Rothwell45e2a6e2005-08-29 13:15:50 +1000119
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120# Use the file '.tmp_gas_check' for binutils tests, as gas won't output
121# to stdout and these checks are run even on install targets.
122TOUT := .tmp_gas_check
123# Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
124# instructions.
125# gcc-3.4 and binutils-2.14 are a fatal combination.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126
127checkbin:
Sam Ravnborgad143362006-01-08 19:58:51 +0100128 @if test "$(call cc-version)" = "0304" ; then \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129 if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
130 echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
131 echo 'correctly with gcc-3.4 and your version of binutils.'; \
132 echo '*** Please upgrade your binutils or downgrade your gcc'; \
133 false; \
134 fi ; \
135 fi
136 @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \
137 echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \
138 echo 'correctly with old versions of binutils.' ; \
139 echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \
140 false ; \
141 fi
142
Sam Ravnborg0013a852005-09-09 20:57:26 +0200143CLEAN_FILES += $(TOUT)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144