| # | |
| # s390/Makefile | |
| # | |
| # This file is included by the global makefile so that you can add your own | |
| # architecture-specific flags and dependencies. Remember to do have actions | |
| # for "archclean" and "archdep" for cleaning up and making dependencies for | |
| # this architecture | |
| # | |
| # This file is subject to the terms and conditions of the GNU General Public | |
| # License. See the file "COPYING" in the main directory of this archive | |
| # for more details. | |
| # | |
| # Copyright (C) 1994 by Linus Torvalds | |
| # | |
| ifndef CONFIG_64BIT | |
| LDFLAGS := -m elf_s390 | |
| CFLAGS += -m31 | |
| AFLAGS += -m31 | |
| UTS_MACHINE := s390 | |
| STACK_SIZE := 8192 | |
| CHECKFLAGS += -D__s390__ | |
| else | |
| LDFLAGS := -m elf64_s390 | |
| MODFLAGS += -fpic -D__PIC__ | |
| CFLAGS += -m64 | |
| AFLAGS += -m64 | |
| UTS_MACHINE := s390x | |
| STACK_SIZE := 16384 | |
| CHECKFLAGS += -D__s390__ -D__s390x__ | |
| endif | |
| cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5) | |
| cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900) | |
| cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990) | |
| # old style option for packed stacks | |
| ifeq ($(call cc-option-yn,-mkernel-backchain),y) | |
| cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK | |
| aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK | |
| cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
| aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
| ifdef CONFIG_SMALL_STACK | |
| STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) | |
| endif | |
| endif | |
| # new style option for packed stacks | |
| ifeq ($(call cc-option-yn,-mpacked-stack),y) | |
| cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK | |
| aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK | |
| cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
| aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
| ifdef CONFIG_SMALL_STACK | |
| STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) | |
| endif | |
| endif | |
| ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) | |
| cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) | |
| cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) | |
| endif | |
| ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) | |
| cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack | |
| cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE) | |
| endif | |
| CFLAGS += -mbackchain -msoft-float $(cflags-y) | |
| CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare | |
| AFLAGS += $(aflags-y) | |
| OBJCOPYFLAGS := -O binary | |
| LDFLAGS_vmlinux := -e start | |
| head-y := arch/$(ARCH)/kernel/head.o arch/$(ARCH)/kernel/init_task.o | |
| core-y += arch/$(ARCH)/mm/ arch/$(ARCH)/kernel/ arch/$(ARCH)/crypto/ \ | |
| arch/$(ARCH)/appldata/ | |
| libs-y += arch/$(ARCH)/lib/ | |
| drivers-y += drivers/s390/ | |
| drivers-$(CONFIG_MATHEMU) += arch/$(ARCH)/math-emu/ | |
| # must be linked after kernel | |
| drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ | |
| boot := arch/$(ARCH)/boot | |
| all: image | |
| install: vmlinux | |
| $(Q)$(MAKE) $(build)=$(boot) $@ | |
| image: vmlinux | |
| $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ | |
| archclean: | |
| $(Q)$(MAKE) $(clean)=$(boot) | |
| # Don't use tabs in echo arguments | |
| define archhelp | |
| echo '* image - Kernel image for IPL ($(boot)/image)' | |
| endef |