| # |
| # 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 |
| LD_BFD := elf32-s390 |
| LDFLAGS := -m elf_s390 |
| KBUILD_CFLAGS += -m31 |
| KBUILD_AFLAGS += -m31 |
| UTS_MACHINE := s390 |
| STACK_SIZE := 8192 |
| CHECKFLAGS += -D__s390__ -msize-long |
| else |
| LD_BFD := elf64-s390 |
| LDFLAGS := -m elf64_s390 |
| KBUILD_AFLAGS_MODULE += -fPIC |
| KBUILD_CFLAGS_MODULE += -fPIC |
| KBUILD_CFLAGS += -m64 |
| KBUILD_AFLAGS += -m64 |
| UTS_MACHINE := s390x |
| STACK_SIZE := 16384 |
| CHECKFLAGS += -D__s390__ -D__s390x__ |
| endif |
| |
| export LD_BFD |
| |
| cflags-$(CONFIG_MARCH_G5) += -march=g5 |
| cflags-$(CONFIG_MARCH_Z900) += -march=z900 |
| cflags-$(CONFIG_MARCH_Z990) += -march=z990 |
| cflags-$(CONFIG_MARCH_Z9_109) += -march=z9-109 |
| cflags-$(CONFIG_MARCH_Z10) += -march=z10 |
| cflags-$(CONFIG_MARCH_Z196) += -march=z196 |
| cflags-$(CONFIG_MARCH_ZEC12) += -march=zEC12 |
| |
| #KBUILD_IMAGE is necessary for make rpm |
| KBUILD_IMAGE :=arch/s390/boot/image |
| |
| # |
| # Prevent tail-call optimizations, to get clearer backtraces: |
| # |
| cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls |
| |
| # old style option for packed stacks |
| ifeq ($(call cc-option-yn,-mkernel-backchain),y) |
| cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK |
| aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK |
| endif |
| |
| # new style option for packed stacks |
| ifeq ($(call cc-option-yn,-mpacked-stack),y) |
| cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK |
| aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK |
| endif |
| |
| ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) |
| cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) |
| ifneq ($(call cc-option-yn,-mstack-size=8192),y) |
| cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) |
| endif |
| endif |
| |
| ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) |
| cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack |
| endif |
| |
| KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y) |
| KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare |
| KBUILD_AFLAGS += $(aflags-y) |
| |
| OBJCOPYFLAGS := -O binary |
| |
| head-y := arch/s390/kernel/head.o |
| head-y += arch/s390/kernel/$(if $(CONFIG_64BIT),head64.o,head31.o) |
| |
| # See arch/s390/Kbuild for content of core part of the kernel |
| core-y += arch/s390/ |
| |
| libs-y += arch/s390/lib/ |
| drivers-y += drivers/s390/ |
| |
| # must be linked after kernel |
| drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ |
| |
| boot := arch/s390/boot |
| |
| all: image bzImage |
| |
| install: vmlinux |
| $(Q)$(MAKE) $(build)=$(boot) $@ |
| |
| image bzImage: vmlinux |
| $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
| |
| zfcpdump: |
| $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
| |
| vdso_install: |
| ifeq ($(CONFIG_64BIT),y) |
| $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ |
| endif |
| $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ |
| |
| archclean: |
| $(Q)$(MAKE) $(clean)=$(boot) |
| |
| # Don't use tabs in echo arguments |
| define archhelp |
| echo '* image - Kernel image for IPL ($(boot)/image)' |
| echo '* bzImage - Compressed kernel image for IPL ($(boot)/bzImage)' |
| endef |
