projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | # Adjusted for PPC64 by Tom Gall | |
| 14 | # | |
| 15 | ||
| 16 | KERNELLOAD := 0xc000000000000000 | |
| 17 | ||
| 18 | # Set default 32 bits cross compilers for vdso and boot wrapper | |
| 19 | CROSS32_COMPILE ?= | |
| 20 | ||
| 21 | CROSS32CC := $(CROSS32_COMPILE)gcc | |
| 22 | CROSS32AS := $(CROSS32_COMPILE)as | |
| 23 | CROSS32LD := $(CROSS32_COMPILE)ld | |
| 24 | CROSS32OBJCOPY := $(CROSS32_COMPILE)objcopy | |
| 25 | ||
| 26 | # If we have a biarch compiler, use it for 32 bits cross compile if | |
| 27 | # CROSS32_COMPILE wasn't explicitely defined, and add proper explicit | |
| 28 | # target type to target compilers | |
| 29 | ||
| 30 | HAS_BIARCH := $(call cc-option-yn, -m64) | |
| 31 | ifeq ($(HAS_BIARCH),y) | |
| 32 | ifeq ($(CROSS32_COMPILE),) | |
| 33 | CROSS32CC := $(CC) -m32 | |
| 34 | CROSS32AS := $(AS) -a32 | |
| 35 | CROSS32LD := $(LD) -m elf32ppc | |
| 36 | CROSS32OBJCOPY := $(OBJCOPY) | |
| 37 | endif | |
| 38 | AS := $(AS) -a64 | |
| 39 | LD := $(LD) -m elf64ppc | |
| 40 | CC := $(CC) -m64 | |
| 41 | endif | |
| 42 | ||
| 43 | export CROSS32CC CROSS32AS CROSS32LD CROSS32OBJCOPY | |
| 44 | ||
| 45 | new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi) | |
| 46 | ||
| 47 | ifeq ($(new_nm),y) | |
| 48 | NM := $(NM) --synthetic | |
| 49 | ||
| 50 | endif | |
| 51 | ||
| 52 | CHECKFLAGS += -m64 -D__powerpc__ | |
| 53 | ||
| 54 | LDFLAGS := -m elf64ppc | |
| 55 | LDFLAGS_vmlinux := -Bstatic -e $(KERNELLOAD) -Ttext $(KERNELLOAD) | |
| 56 | CFLAGS += -msoft-float -pipe -mminimal-toc -mtraceback=none \ | |
| 57 | -mcall-aixdesc | |
| 58 | ||
| 59 | ifeq ($(CONFIG_POWER4_ONLY),y) | |
| 60 | ifeq ($(CONFIG_ALTIVEC),y) | |
| 61 | CFLAGS += $(call cc-option,-mcpu=970) | |
| 62 | else | |
| 63 | CFLAGS += $(call cc-option,-mcpu=power4) | |
| 64 | endif | |
| 65 | else | |
| 66 | CFLAGS += $(call cc-option,-mtune=power4) | |
| 67 | endif | |
| 68 | ||
| 69 | # Enable unit-at-a-time mode when possible. It shrinks the | |
| 70 | # kernel considerably. | |
| 71 | CFLAGS += $(call cc-option,-funit-at-a-time) | |
| 72 | ||
| 73 | head-y := arch/ppc64/kernel/head.o | |
| 74 | ||
| 75 | libs-y += arch/ppc64/lib/ | |
| 76 | core-y += arch/ppc64/kernel/ | |
| 77 | core-y += arch/ppc64/mm/ | |
| 78 | core-$(CONFIG_XMON) += arch/ppc64/xmon/ | |
| 79 | drivers-$(CONFIG_OPROFILE) += arch/ppc64/oprofile/ | |
| 80 | ||
| 81 | boot := arch/ppc64/boot | |
| 82 | ||
| 83 | boottarget-$(CONFIG_PPC_PSERIES) := zImage zImage.initrd | |
| 84 | boottarget-$(CONFIG_PPC_MAPLE) := zImage zImage.initrd | |
| 85 | boottarget-$(CONFIG_PPC_ISERIES) := vmlinux.sminitrd vmlinux.initrd vmlinux.sm | |
| 86 | $(boottarget-y): vmlinux | |
| 87 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ | |
| 88 | ||
| 89 | bootimage-$(CONFIG_PPC_PSERIES) := $(boot)/zImage | |
| 90 | bootimage-$(CONFIG_PPC_PMAC) := vmlinux | |
| 91 | bootimage-$(CONFIG_PPC_MAPLE) := $(boot)/zImage | |
| 92 | bootimage-$(CONFIG_PPC_ISERIES) := vmlinux | |
| 93 | BOOTIMAGE := $(bootimage-y) | |
| 94 | install: vmlinux | |
| 95 | $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@ | |
| 96 | ||
| 97 | defaultimage-$(CONFIG_PPC_PSERIES) := zImage | |
| 98 | defaultimage-$(CONFIG_PPC_PMAC) := vmlinux | |
| 99 | defaultimage-$(CONFIG_PPC_MAPLE) := zImage | |
| 100 | defaultimage-$(CONFIG_PPC_ISERIES) := vmlinux | |
| 101 | KBUILD_IMAGE := $(defaultimage-y) | |
| 102 | all: $(KBUILD_IMAGE) | |
| 103 | ||
| 104 | archclean: | |
| 105 | $(Q)$(MAKE) $(clean)=$(boot) | |
| 106 | ||
| 107 | prepare: include/asm-ppc64/offsets.h | |
| 108 | ||
| 109 | arch/ppc64/kernel/asm-offsets.s: include/asm include/linux/version.h \ | |
| 110 | include/config/MARKER | |
| 111 | ||
| 112 | include/asm-ppc64/offsets.h: arch/ppc64/kernel/asm-offsets.s | |
| 113 | $(call filechk,gen-asm-offsets) | |
| 114 | ||
| 115 | define archhelp | |
| 116 | echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' | |
| 117 | echo ' zImage.initrd- Compressed kernel image with initrd attached,' | |
| 118 | echo ' sourced from arch/$(ARCH)/boot/ramdisk.image.gz' | |
| 119 | echo ' (arch/$(ARCH)/boot/zImage.initrd)' | |
| 120 | endef | |
| 121 | ||
| 122 | CLEAN_FILES += include/asm-ppc64/offsets.h |