Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 1 | # This file is included by the global makefile so that you can add your own |
| 2 | # architecture-specific flags and dependencies. Remember to do have actions |
| 3 | # for "archclean" and "archdep" for cleaning up and making dependencies for |
| 4 | # this architecture. |
| 5 | # |
| 6 | # This file is subject to the terms and conditions of the GNU General Public |
| 7 | # License. See the file "COPYING" in the main directory of this archive |
| 8 | # for more details. |
| 9 | # |
| 10 | # Copyright (C) 1994 by Linus Torvalds |
| 11 | # Changes for PPC by Gary Thomas |
| 12 | # Rewritten by Cort Dougan and Paul Mackerras |
| 13 | # |
| 14 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 15 | HAS_BIARCH := $(call cc-option-yn, -m32) |
| 16 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 17 | # Set default 32 bits cross compilers for vdso and boot wrapper |
| 18 | CROSS32_COMPILE ?= |
| 19 | |
| 20 | CROSS32CC := $(CROSS32_COMPILE)gcc |
| 21 | CROSS32AS := $(CROSS32_COMPILE)as |
| 22 | CROSS32LD := $(CROSS32_COMPILE)ld |
Paul Mackerras | 2bf1181 | 2006-09-27 22:47:03 +1000 | [diff] [blame] | 23 | CROSS32AR := $(CROSS32_COMPILE)ar |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 24 | CROSS32OBJCOPY := $(CROSS32_COMPILE)objcopy |
| 25 | |
| 26 | ifeq ($(HAS_BIARCH),y) |
| 27 | ifeq ($(CROSS32_COMPILE),) |
| 28 | CROSS32CC := $(CC) -m32 |
| 29 | CROSS32AS := $(AS) -a32 |
| 30 | CROSS32LD := $(LD) -m elf32ppc |
| 31 | CROSS32OBJCOPY := $(OBJCOPY) |
Segher Boessenkool | 8995ac8 | 2007-05-16 22:34:38 +1000 | [diff] [blame] | 32 | CROSS32AR := GNUTARGET=elf32-powerpc $(AR) |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 33 | endif |
| 34 | endif |
| 35 | |
Paul Mackerras | 2bf1181 | 2006-09-27 22:47:03 +1000 | [diff] [blame] | 36 | export CROSS32CC CROSS32AS CROSS32LD CROSS32AR CROSS32OBJCOPY |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 37 | |
Paul Mackerras | 8a5abdf | 2005-11-18 16:39:08 +1100 | [diff] [blame] | 38 | KBUILD_DEFCONFIG := $(shell uname -m)_defconfig |
| 39 | |
Paul Mackerras | 94b212c | 2005-11-16 13:38:21 +1100 | [diff] [blame] | 40 | ifeq ($(CONFIG_PPC64),y) |
| 41 | OLDARCH := ppc64 |
| 42 | SZ := 64 |
| 43 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 44 | new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi) |
| 45 | |
| 46 | ifeq ($(new_nm),y) |
| 47 | NM := $(NM) --synthetic |
| 48 | endif |
| 49 | |
| 50 | else |
Stephen Rothwell | bbeb3f4 | 2005-09-27 13:51:59 +1000 | [diff] [blame] | 51 | OLDARCH := ppc |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 52 | SZ := 32 |
| 53 | endif |
| 54 | |
Stephen Rothwell | 190554d | 2005-10-13 16:14:15 +1000 | [diff] [blame] | 55 | UTS_MACHINE := $(OLDARCH) |
| 56 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 57 | ifeq ($(HAS_BIARCH),y) |
| 58 | override AS += -a$(SZ) |
| 59 | override LD += -m elf$(SZ)ppc |
| 60 | override CC += -m$(SZ) |
Segher Boessenkool | 8995ac8 | 2007-05-16 22:34:38 +1000 | [diff] [blame] | 61 | override AR := GNUTARGET=elf$(SZ)-powerpc $(AR) |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 62 | endif |
| 63 | |
Michael Ellerman | e19e4ab | 2005-11-03 16:03:06 +1100 | [diff] [blame] | 64 | LDFLAGS_vmlinux := -Bstatic |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 65 | |
| 66 | # The -Iarch/$(ARCH)/include is temporary while we are merging |
Stephen Rothwell | 55bb239 | 2005-11-22 12:05:26 +1100 | [diff] [blame] | 67 | CPPFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH) -Iarch/$(ARCH)/include |
| 68 | AFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH) |
Stephen Rothwell | bbeb3f4 | 2005-09-27 13:51:59 +1000 | [diff] [blame] | 69 | CFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=none -mcall-aixdesc |
Stephen Rothwell | 55bb239 | 2005-11-22 12:05:26 +1100 | [diff] [blame] | 70 | CFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH) -ffixed-r2 -mmultiple |
| 71 | CPPFLAGS += $(CPPFLAGS-y) |
| 72 | AFLAGS += $(AFLAGS-y) |
| 73 | CFLAGS += -msoft-float -pipe $(CFLAGS-y) |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 74 | CPP = $(CC) -E $(CFLAGS) |
| 75 | # Temporary hack until we have migrated to asm-powerpc |
Stephen Rothwell | 55bb239 | 2005-11-22 12:05:26 +1100 | [diff] [blame] | 76 | LINUXINCLUDE-$(CONFIG_PPC32) := -Iarch/$(ARCH)/include |
| 77 | LINUXINCLUDE += $(LINUXINCLUDE-y) |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 78 | |
| 79 | CHECKFLAGS += -m$(SZ) -D__powerpc__ -D__powerpc$(SZ)__ |
| 80 | |
| 81 | ifeq ($(CONFIG_PPC64),y) |
Sam Ravnborg | ad14336 | 2006-01-08 19:58:51 +0100 | [diff] [blame] | 82 | GCC_BROKEN_VEC := $(shell if [ $(call cc-version) -lt 0400 ] ; then echo "y"; fi) |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 83 | |
| 84 | ifeq ($(CONFIG_POWER4_ONLY),y) |
| 85 | ifeq ($(CONFIG_ALTIVEC),y) |
| 86 | ifeq ($(GCC_BROKEN_VEC),y) |
| 87 | CFLAGS += $(call cc-option,-mcpu=970) |
| 88 | else |
| 89 | CFLAGS += $(call cc-option,-mcpu=power4) |
| 90 | endif |
| 91 | else |
| 92 | CFLAGS += $(call cc-option,-mcpu=power4) |
| 93 | endif |
| 94 | else |
| 95 | CFLAGS += $(call cc-option,-mtune=power4) |
| 96 | endif |
| 97 | endif |
| 98 | |
Paul Mackerras | d3f67fb | 2005-10-29 15:31:17 +1000 | [diff] [blame] | 99 | # No AltiVec instruction when building kernel |
| 100 | CFLAGS += $(call cc-option,-mno-altivec) |
| 101 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 102 | # Enable unit-at-a-time mode when possible. It shrinks the |
| 103 | # kernel considerably. |
| 104 | CFLAGS += $(call cc-option,-funit-at-a-time) |
| 105 | |
Benjamin Herrenschmidt | 57647a4 | 2007-03-22 17:23:44 +1100 | [diff] [blame] | 106 | # Never use string load/store instructions as they are |
| 107 | # often slow when they are implemented at all |
| 108 | CFLAGS += -mno-string |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 109 | |
Olaf Hering | f48b829 | 2006-04-11 20:42:08 +0200 | [diff] [blame] | 110 | ifeq ($(CONFIG_6xx),y) |
| 111 | CFLAGS += -mcpu=powerpc |
| 112 | endif |
| 113 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 114 | cpu-as-$(CONFIG_4xx) += -Wa,-m405 |
| 115 | cpu-as-$(CONFIG_6xx) += -Wa,-maltivec |
| 116 | cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec |
| 117 | cpu-as-$(CONFIG_E500) += -Wa,-me500 |
| 118 | cpu-as-$(CONFIG_E200) += -Wa,-me200 |
| 119 | |
| 120 | AFLAGS += $(cpu-as-y) |
| 121 | CFLAGS += $(cpu-as-y) |
| 122 | |
Paul Mackerras | 70d64ce | 2005-10-10 21:52:43 +1000 | [diff] [blame] | 123 | head-y := arch/powerpc/kernel/head_32.o |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 124 | head-$(CONFIG_PPC64) := arch/powerpc/kernel/head_64.o |
| 125 | head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o |
| 126 | head-$(CONFIG_4xx) := arch/powerpc/kernel/head_4xx.o |
| 127 | head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o |
| 128 | head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o |
| 129 | |
Paul Mackerras | 9994a33 | 2005-10-10 22:36:14 +1000 | [diff] [blame] | 130 | head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 131 | head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 132 | |
Paul Mackerras | daec962 | 2005-10-10 22:25:26 +1000 | [diff] [blame] | 133 | core-y += arch/powerpc/kernel/ \ |
Paul Mackerras | daec962 | 2005-10-10 22:25:26 +1000 | [diff] [blame] | 134 | arch/powerpc/mm/ \ |
| 135 | arch/powerpc/lib/ \ |
| 136 | arch/powerpc/sysdev/ \ |
| 137 | arch/powerpc/platforms/ |
Kumar Gala | 5cd2720 | 2006-03-27 23:43:27 -0600 | [diff] [blame] | 138 | core-$(CONFIG_MATH_EMULATION) += arch/powerpc/math-emu/ |
Paul Mackerras | f78541d | 2005-10-28 22:53:37 +1000 | [diff] [blame] | 139 | core-$(CONFIG_XMON) += arch/powerpc/xmon/ |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 140 | |
| 141 | drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ |
| 142 | |
Tom Rini | 135f0b1 | 2006-01-12 16:55:58 -0700 | [diff] [blame] | 143 | # Default to zImage, override when needed |
| 144 | defaultimage-y := zImage |
Kumar Gala | f4fc4a5 | 2006-01-16 10:53:22 -0600 | [diff] [blame] | 145 | defaultimage-$(CONFIG_DEFAULT_UIMAGE) := uImage |
Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 146 | KBUILD_IMAGE := $(defaultimage-y) |
| 147 | all: $(KBUILD_IMAGE) |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 148 | |
| 149 | CPPFLAGS_vmlinux.lds := -Upowerpc |
| 150 | |
Mark A. Greer | 941b7ad | 2007-06-01 05:54:39 +1000 | [diff] [blame] | 151 | BOOT_TARGETS = zImage zImage.initrd uImage |
Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 152 | |
Paul Smith | 4f19336 | 2006-03-05 17:14:10 -0500 | [diff] [blame] | 153 | PHONY += $(BOOT_TARGETS) |
Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 154 | |
Paul Mackerras | 94b212c | 2005-11-16 13:38:21 +1100 | [diff] [blame] | 155 | boot := arch/$(ARCH)/boot |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 156 | |
| 157 | $(BOOT_TARGETS): vmlinux |
Paul Mackerras | 20f6295 | 2005-10-11 09:25:40 +1000 | [diff] [blame] | 158 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 159 | |
| 160 | define archhelp |
Paul Mackerras | 94b212c | 2005-11-16 13:38:21 +1100 | [diff] [blame] | 161 | @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)' |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 162 | @echo ' install - Install kernel using' |
| 163 | @echo ' (your) ~/bin/installkernel or' |
| 164 | @echo ' (distribution) /sbin/installkernel or' |
| 165 | @echo ' install to $$(INSTALL_PATH) and run lilo' |
Paul Mackerras | 437a58d | 2005-11-18 15:43:34 +1100 | [diff] [blame] | 166 | @echo ' *_defconfig - Select default config from arch/$(ARCH)/configs' |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 167 | endef |
| 168 | |
Akinobu Mita | 928370c | 2007-04-10 21:05:31 +1000 | [diff] [blame] | 169 | install: |
| 170 | $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install |
| 171 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 172 | archclean: |
Paul Mackerras | a3a9e99 | 2005-09-28 15:53:36 +1000 | [diff] [blame] | 173 | $(Q)$(MAKE) $(clean)=$(boot) |
Andreas Gruenbacher | 7056729 | 2006-02-10 01:51:07 -0800 | [diff] [blame] | 174 | |
| 175 | archmrproper: |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 176 | $(Q)rm -rf arch/$(ARCH)/include |
| 177 | |
| 178 | archprepare: checkbin |
| 179 | |
Stephen Rothwell | 55bb239 | 2005-11-22 12:05:26 +1100 | [diff] [blame] | 180 | ifeq ($(CONFIG_PPC32),y) |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 181 | # Temporary hack until we have migrated to asm-powerpc |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 182 | include/asm: arch/$(ARCH)/include/asm |
Benjamin Herrenschmidt | 50092b2 | 2005-11-14 11:02:20 +1100 | [diff] [blame] | 183 | arch/$(ARCH)/include/asm: FORCE |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 184 | $(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi |
Stephen Rothwell | bbeb3f4 | 2005-09-27 13:51:59 +1000 | [diff] [blame] | 185 | $(Q)ln -fsn $(srctree)/include/asm-$(OLDARCH) arch/$(ARCH)/include/asm |
Stephen Rothwell | 55bb239 | 2005-11-22 12:05:26 +1100 | [diff] [blame] | 186 | endif |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 187 | |
| 188 | # Use the file '.tmp_gas_check' for binutils tests, as gas won't output |
| 189 | # to stdout and these checks are run even on install targets. |
| 190 | TOUT := .tmp_gas_check |
| 191 | # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec |
| 192 | # instructions. |
| 193 | # gcc-3.4 and binutils-2.14 are a fatal combination. |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 194 | |
| 195 | checkbin: |
Sam Ravnborg | ad14336 | 2006-01-08 19:58:51 +0100 | [diff] [blame] | 196 | @if test "$(call cc-version)" = "0304" ; then \ |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 197 | if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \ |
| 198 | echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \ |
| 199 | echo 'correctly with gcc-3.4 and your version of binutils.'; \ |
| 200 | echo '*** Please upgrade your binutils or downgrade your gcc'; \ |
| 201 | false; \ |
| 202 | fi ; \ |
| 203 | fi |
Segher Boessenkool | f5e83fa | 2007-05-19 18:49:08 +0200 | [diff] [blame] | 204 | @if test "$(call cc-fullversion)" = "040200" \ |
| 205 | && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \ |
| 206 | echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \ |
| 207 | echo 'kernel with modules enabled.' ; \ |
| 208 | echo -n '*** Please use a different GCC version or ' ; \ |
| 209 | echo 'disable kernel modules' ; \ |
| 210 | false ; \ |
| 211 | fi |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 212 | @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \ |
| 213 | echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \ |
| 214 | echo 'correctly with old versions of binutils.' ; \ |
| 215 | echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \ |
| 216 | false ; \ |
| 217 | fi |
| 218 | |
| 219 | CLEAN_FILES += $(TOUT) |
| 220 | |