| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | # |
| 2 | # s390/Makefile |
| 3 | # |
| 4 | # This file is included by the global makefile so that you can add your own |
| 5 | # architecture-specific flags and dependencies. Remember to do have actions |
| 6 | # for "archclean" and "archdep" for cleaning up and making dependencies for |
| 7 | # this architecture |
| 8 | # |
| 9 | # This file is subject to the terms and conditions of the GNU General Public |
| 10 | # License. See the file "COPYING" in the main directory of this archive |
| 11 | # for more details. |
| 12 | # |
| 13 | # Copyright (C) 1994 by Linus Torvalds |
| 14 | # |
| 15 | |
| 16 | ifdef CONFIG_ARCH_S390_31 |
| 17 | LDFLAGS := -m elf_s390 |
| 18 | CFLAGS += -m31 |
| 19 | AFLAGS += -m31 |
| 20 | UTS_MACHINE := s390 |
| 21 | STACK_SIZE := 8192 |
| 22 | endif |
| 23 | |
| 24 | ifdef CONFIG_ARCH_S390X |
| 25 | LDFLAGS := -m elf64_s390 |
| 26 | MODFLAGS += -fpic -D__PIC__ |
| 27 | CFLAGS += -m64 |
| 28 | AFLAGS += -m64 |
| 29 | UTS_MACHINE := s390x |
| 30 | STACK_SIZE := 16384 |
| 31 | endif |
| 32 | |
| 33 | cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5) |
| 34 | cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900) |
| 35 | cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990) |
| 36 | |
| 37 | # old style option for packed stacks |
| 38 | ifeq ($(call cc-option-yn,-mkernel-backchain),y) |
| 39 | cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK |
| 40 | aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK |
| 41 | cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK |
| 42 | aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK |
| 43 | ifdef CONFIG_SMALL_STACK |
| 44 | STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) |
| 45 | endif |
| 46 | endif |
| 47 | |
| 48 | # new style option for packed stacks |
| 49 | ifeq ($(call cc-option-yn,-mpacked-stack),y) |
| 50 | cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK |
| 51 | aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK |
| 52 | cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK |
| 53 | aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK |
| 54 | ifdef CONFIG_SMALL_STACK |
| 55 | STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) |
| 56 | endif |
| 57 | endif |
| 58 | |
| 59 | ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) |
| 60 | cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) |
| 61 | cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) |
| 62 | endif |
| 63 | |
| 64 | ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) |
| 65 | cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack |
| 66 | cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE) |
| 67 | endif |
| 68 | |
| 69 | CFLAGS += -mbackchain -msoft-float $(cflags-y) |
| 70 | CFLAGS += $(call cc-option,-finline-limit=10000) |
| 71 | CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare |
| 72 | AFLAGS += $(aflags-y) |
| 73 | |
| 74 | OBJCOPYFLAGS := -O binary |
| 75 | LDFLAGS_vmlinux := -e start |
| 76 | |
| 77 | head-$(CONFIG_ARCH_S390_31) += arch/$(ARCH)/kernel/head.o |
| 78 | head-$(CONFIG_ARCH_S390X) += arch/$(ARCH)/kernel/head64.o |
| 79 | head-y += arch/$(ARCH)/kernel/init_task.o |
| 80 | |
| 81 | core-y += arch/$(ARCH)/mm/ arch/$(ARCH)/kernel/ arch/$(ARCH)/crypto/ \ |
| 82 | arch/$(ARCH)/appldata/ |
| 83 | libs-y += arch/$(ARCH)/lib/ |
| 84 | drivers-y += drivers/s390/ |
| 85 | drivers-$(CONFIG_MATHEMU) += arch/$(ARCH)/math-emu/ |
| 86 | |
| 87 | # must be linked after kernel |
| 88 | drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ |
| 89 | |
| 90 | boot := arch/$(ARCH)/boot |
| 91 | |
| 92 | all: image |
| 93 | |
| 94 | install: vmlinux |
| 95 | $(Q)$(MAKE) $(build)=$(boot) $@ |
| 96 | |
| 97 | image: vmlinux |
| 98 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
| 99 | |
| 100 | archclean: |
| 101 | $(Q)$(MAKE) $(clean)=$(boot) |
| 102 | |
| 103 | prepare: include/asm-$(ARCH)/offsets.h |
| 104 | |
| 105 | arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \ |
| 106 | include/config/MARKER |
| 107 | |
| 108 | include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s |
| 109 | $(call filechk,gen-asm-offsets) |
| 110 | |
| 111 | CLEAN_FILES += include/asm-$(ARCH)/offsets.h |
| 112 | |
| 113 | # Don't use tabs in echo arguments |
| 114 | define archhelp |
| 115 | echo '* image - Kernel image for IPL ($(boot)/image)' |
| 116 | endef |