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1da177e4 LT |
1 | # |
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 | ||
347a8dc3 | 16 | ifndef CONFIG_64BIT |
1da177e4 | 17 | LDFLAGS := -m elf_s390 |
a0f97e06 | 18 | KBUILD_CFLAGS += -m31 |
222d394d | 19 | KBUILD_AFLAGS += -m31 |
1da177e4 LT |
20 | UTS_MACHINE := s390 |
21 | STACK_SIZE := 8192 | |
22bb3e9e | 22 | CHECKFLAGS += -D__s390__ -msize-long |
347a8dc3 | 23 | else |
1da177e4 LT |
24 | LDFLAGS := -m elf64_s390 |
25 | MODFLAGS += -fpic -D__PIC__ | |
a0f97e06 | 26 | KBUILD_CFLAGS += -m64 |
222d394d | 27 | KBUILD_AFLAGS += -m64 |
1da177e4 LT |
28 | UTS_MACHINE := s390x |
29 | STACK_SIZE := 16384 | |
d310a35a | 30 | CHECKFLAGS += -D__s390__ -D__s390x__ |
1da177e4 LT |
31 | endif |
32 | ||
33 | cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5) | |
34 | cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900) | |
35 | cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990) | |
0efa4703 | 36 | cflags-$(CONFIG_MARCH_Z9_109) += $(call cc-option,-march=z9-109) |
1da177e4 | 37 | |
1681ceda CB |
38 | #KBUILD_IMAGE is necessary for make rpm |
39 | KBUILD_IMAGE :=arch/s390/boot/image | |
40 | ||
cbbd1fa7 HC |
41 | # |
42 | # Prevent tail-call optimizations, to get clearer backtraces: | |
43 | # | |
44 | cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls | |
45 | ||
1da177e4 LT |
46 | # old style option for packed stacks |
47 | ifeq ($(call cc-option-yn,-mkernel-backchain),y) | |
48 | cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK | |
49 | aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK | |
50 | cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
51 | aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
52 | ifdef CONFIG_SMALL_STACK | |
53 | STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) | |
54 | endif | |
55 | endif | |
56 | ||
57 | # new style option for packed stacks | |
58 | ifeq ($(call cc-option-yn,-mpacked-stack),y) | |
59 | cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK | |
60 | aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK | |
61 | cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
62 | aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
63 | ifdef CONFIG_SMALL_STACK | |
64 | STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) | |
65 | endif | |
66 | endif | |
67 | ||
68 | ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) | |
69 | cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) | |
be796285 | 70 | ifneq ($(call cc-option-yn,-mstack-size=8192),y) |
1da177e4 LT |
71 | cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) |
72 | endif | |
be796285 | 73 | endif |
1da177e4 LT |
74 | |
75 | ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) | |
76 | cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack | |
77 | cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE) | |
78 | endif | |
79 | ||
a0f97e06 SR |
80 | KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y) |
81 | KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare | |
222d394d | 82 | KBUILD_AFLAGS += $(aflags-y) |
1da177e4 LT |
83 | |
84 | OBJCOPYFLAGS := -O binary | |
85 | LDFLAGS_vmlinux := -e start | |
86 | ||
4562c9ff | 87 | head-y := arch/s390/kernel/head.o arch/s390/kernel/init_task.o |
1da177e4 | 88 | |
4562c9ff | 89 | core-y += arch/s390/mm/ arch/s390/kernel/ arch/s390/crypto/ \ |
b0c632db | 90 | arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/ |
4562c9ff | 91 | libs-y += arch/s390/lib/ |
1da177e4 | 92 | drivers-y += drivers/s390/ |
4562c9ff | 93 | drivers-$(CONFIG_MATHEMU) += arch/s390/math-emu/ |
1da177e4 LT |
94 | |
95 | # must be linked after kernel | |
96 | drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ | |
97 | ||
4562c9ff | 98 | boot := arch/s390/boot |
1da177e4 LT |
99 | |
100 | all: image | |
101 | ||
102 | install: vmlinux | |
103 | $(Q)$(MAKE) $(build)=$(boot) $@ | |
104 | ||
105 | image: vmlinux | |
106 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ | |
107 | ||
411ed322 MH |
108 | zfcpdump: |
109 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ | |
110 | ||
1da177e4 LT |
111 | archclean: |
112 | $(Q)$(MAKE) $(clean)=$(boot) | |
113 | ||
1da177e4 LT |
114 | # Don't use tabs in echo arguments |
115 | define archhelp | |
116 | echo '* image - Kernel image for IPL ($(boot)/image)' | |
117 | endef |