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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
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
Martin Schwidefsky347a8dc2006-01-06 00:19:28 -080016ifndef CONFIG_64BIT
Linus Torvalds1da177e2005-04-16 15:20:36 -070017LDFLAGS := -m elf_s390
18CFLAGS += -m31
19AFLAGS += -m31
20UTS_MACHINE := s390
21STACK_SIZE := 8192
viro@ZenIV.linux.org.ukd310a352005-09-09 16:56:05 +010022CHECKFLAGS += -D__s390__
Martin Schwidefsky347a8dc2006-01-06 00:19:28 -080023else
Linus Torvalds1da177e2005-04-16 15:20:36 -070024LDFLAGS := -m elf64_s390
25MODFLAGS += -fpic -D__PIC__
26CFLAGS += -m64
27AFLAGS += -m64
28UTS_MACHINE := s390x
29STACK_SIZE := 16384
viro@ZenIV.linux.org.ukd310a352005-09-09 16:56:05 +010030CHECKFLAGS += -D__s390__ -D__s390x__
Linus Torvalds1da177e2005-04-16 15:20:36 -070031endif
32
33cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5)
34cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
35cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
36
37# old style option for packed stacks
38ifeq ($(call cc-option-yn,-mkernel-backchain),y)
39cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK
40aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
41cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
42aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
43ifdef CONFIG_SMALL_STACK
44STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) )
45endif
46endif
47
48# new style option for packed stacks
49ifeq ($(call cc-option-yn,-mpacked-stack),y)
50cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK
51aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
52cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
53aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
54ifdef CONFIG_SMALL_STACK
55STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) )
56endif
57endif
58
59ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
60cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
61cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
62endif
63
64ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
65cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack
66cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE)
67endif
68
69CFLAGS += -mbackchain -msoft-float $(cflags-y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070070CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
71AFLAGS += $(aflags-y)
72
73OBJCOPYFLAGS := -O binary
74LDFLAGS_vmlinux := -e start
75
Heiko Carstens0ad775d2005-11-07 00:59:12 -080076head-y := arch/$(ARCH)/kernel/head.o arch/$(ARCH)/kernel/init_task.o
Linus Torvalds1da177e2005-04-16 15:20:36 -070077
78core-y += arch/$(ARCH)/mm/ arch/$(ARCH)/kernel/ arch/$(ARCH)/crypto/ \
79 arch/$(ARCH)/appldata/
80libs-y += arch/$(ARCH)/lib/
81drivers-y += drivers/s390/
82drivers-$(CONFIG_MATHEMU) += arch/$(ARCH)/math-emu/
83
84# must be linked after kernel
85drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/
86
87boot := arch/$(ARCH)/boot
88
89all: image
90
91install: vmlinux
92 $(Q)$(MAKE) $(build)=$(boot) $@
93
94image: vmlinux
95 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
96
97archclean:
98 $(Q)$(MAKE) $(clean)=$(boot)
99
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100# Don't use tabs in echo arguments
101define archhelp
102 echo '* image - Kernel image for IPL ($(boot)/image)'
103endef