blob: 98db30481d97eb211d1e767ca9701767e323dc09 [file] [log] [blame]
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
16ifdef CONFIG_ARCH_S390_31
17LDFLAGS := -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__
Linus Torvalds1da177e2005-04-16 15:20:36 -070023endif
24
25ifdef CONFIG_ARCH_S390X
26LDFLAGS := -m elf64_s390
27MODFLAGS += -fpic -D__PIC__
28CFLAGS += -m64
29AFLAGS += -m64
30UTS_MACHINE := s390x
31STACK_SIZE := 16384
viro@ZenIV.linux.org.ukd310a352005-09-09 16:56:05 +010032CHECKFLAGS += -D__s390__ -D__s390x__
Linus Torvalds1da177e2005-04-16 15:20:36 -070033endif
34
35cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5)
36cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
37cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
38
39# old style option for packed stacks
40ifeq ($(call cc-option-yn,-mkernel-backchain),y)
41cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK
42aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
43cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
44aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
45ifdef CONFIG_SMALL_STACK
46STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) )
47endif
48endif
49
50# new style option for packed stacks
51ifeq ($(call cc-option-yn,-mpacked-stack),y)
52cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK
53aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
54cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
55aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
56ifdef CONFIG_SMALL_STACK
57STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) )
58endif
59endif
60
61ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
62cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
63cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
64endif
65
66ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
67cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack
68cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE)
69endif
70
71CFLAGS += -mbackchain -msoft-float $(cflags-y)
72CFLAGS += $(call cc-option,-finline-limit=10000)
73CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
74AFLAGS += $(aflags-y)
75
76OBJCOPYFLAGS := -O binary
77LDFLAGS_vmlinux := -e start
78
79head-$(CONFIG_ARCH_S390_31) += arch/$(ARCH)/kernel/head.o
80head-$(CONFIG_ARCH_S390X) += arch/$(ARCH)/kernel/head64.o
81head-y += arch/$(ARCH)/kernel/init_task.o
82
83core-y += arch/$(ARCH)/mm/ arch/$(ARCH)/kernel/ arch/$(ARCH)/crypto/ \
84 arch/$(ARCH)/appldata/
85libs-y += arch/$(ARCH)/lib/
86drivers-y += drivers/s390/
87drivers-$(CONFIG_MATHEMU) += arch/$(ARCH)/math-emu/
88
89# must be linked after kernel
90drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/
91
92boot := arch/$(ARCH)/boot
93
94all: image
95
96install: vmlinux
97 $(Q)$(MAKE) $(build)=$(boot) $@
98
99image: vmlinux
100 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
101
102archclean:
103 $(Q)$(MAKE) $(clean)=$(boot)
104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105# Don't use tabs in echo arguments
106define archhelp
107 echo '* image - Kernel image for IPL ($(boot)/image)'
108endef