1 files changed, 116 insertions, 0 deletions

diff --git a/arch/s390/Makefile b/arch/s390/Makefile
new file mode 100644
index 000000000000..3cd8dd25c9d7
--- /dev/null
+++ b/arch/s390/Makefile
@@ -0,0 +1,116 @@
+#
+# 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
+#
+
+ifdef CONFIG_ARCH_S390_31
+LDFLAGS         := -m elf_s390
+CFLAGS          += -m31
+AFLAGS          += -m31
+UTS_MACHINE     := s390
+STACK_SIZE      := 8192
+endif
+
+ifdef CONFIG_ARCH_S390X
+LDFLAGS         := -m elf64_s390
+MODFLAGS        += -fpic -D__PIC__
+CFLAGS          += -m64
+AFLAGS          += -m64
+UTS_MACHINE     := s390x
+STACK_SIZE      := 16384
+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          += $(call cc-option,-finline-limit=10000)
+CFLAGS          += -pipe -fno-strength-reduce -Wno-sign-compare 
+AFLAGS          += $(aflags-y)
+
+OBJCOPYFLAGS    := -O binary
+LDFLAGS_vmlinux := -e start
+
+head-$(CONFIG_ARCH_S390_31)     += arch/$(ARCH)/kernel/head.o
+head-$(CONFIG_ARCH_S390X)       += arch/$(ARCH)/kernel/head64.o
+head-y                          += arch/$(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)
+
+prepare: include/asm-$(ARCH)/offsets.h
+
+arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
+                                   include/config/MARKER
+
+include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
+        $(call filechk,gen-asm-offsets)
+
+CLEAN_FILES += include/asm-$(ARCH)/offsets.h
+
+# Don't use tabs in echo arguments
+define archhelp
+  echo  '* image           - Kernel image for IPL ($(boot)/image)'
+endef