Commit | Line | Data |
---|---|---|
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 LT |
17 | LDFLAGS := -m elf_s390 |
18 | CFLAGS += -m31 | |
19 | AFLAGS += -m31 | |
20 | UTS_MACHINE := s390 | |
21 | STACK_SIZE := 8192 | |
d310a35a | 22 | CHECKFLAGS += -D__s390__ |
347a8dc3 | 23 | else |
1da177e4 LT |
24 | LDFLAGS := -m elf64_s390 |
25 | MODFLAGS += -fpic -D__PIC__ | |
26 | CFLAGS += -m64 | |
27 | AFLAGS += -m64 | |
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) += $(call cc-option,-march=z9-109) |
1da177e4 | 37 | |
cbbd1fa7 HC |
38 | # |
39 | # Prevent tail-call optimizations, to get clearer backtraces: | |
40 | # | |
41 | cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls | |
42 | ||
1da177e4 LT |
43 | # old style option for packed stacks |
44 | ifeq ($(call cc-option-yn,-mkernel-backchain),y) | |
45 | cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK | |
46 | aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK | |
47 | cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
48 | aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
49 | ifdef CONFIG_SMALL_STACK | |
50 | STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) | |
51 | endif | |
52 | endif | |
53 | ||
54 | # new style option for packed stacks | |
55 | ifeq ($(call cc-option-yn,-mpacked-stack),y) | |
56 | cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK | |
57 | aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK | |
58 | cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
59 | aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
60 | ifdef CONFIG_SMALL_STACK | |
61 | STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) | |
62 | endif | |
63 | endif | |
64 | ||
65 | ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) | |
66 | cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) | |
67 | cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) | |
68 | endif | |
69 | ||
70 | ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) | |
71 | cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack | |
72 | cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE) | |
73 | endif | |
74 | ||
75 | CFLAGS += -mbackchain -msoft-float $(cflags-y) | |
1da177e4 LT |
76 | CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare |
77 | AFLAGS += $(aflags-y) | |
78 | ||
79 | OBJCOPYFLAGS := -O binary | |
80 | LDFLAGS_vmlinux := -e start | |
81 | ||
0ad775db | 82 | head-y := arch/$(ARCH)/kernel/head.o arch/$(ARCH)/kernel/init_task.o |
1da177e4 LT |
83 | |
84 | core-y += arch/$(ARCH)/mm/ arch/$(ARCH)/kernel/ arch/$(ARCH)/crypto/ \ | |
24bbb1fa | 85 | arch/$(ARCH)/appldata/ arch/$(ARCH)/hypfs/ |
1da177e4 LT |
86 | libs-y += arch/$(ARCH)/lib/ |
87 | drivers-y += drivers/s390/ | |
88 | drivers-$(CONFIG_MATHEMU) += arch/$(ARCH)/math-emu/ | |
89 | ||
90 | # must be linked after kernel | |
91 | drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ | |
92 | ||
93 | boot := arch/$(ARCH)/boot | |
94 | ||
95 | all: image | |
96 | ||
97 | install: vmlinux | |
98 | $(Q)$(MAKE) $(build)=$(boot) $@ | |
99 | ||
100 | image: vmlinux | |
101 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ | |
102 | ||
103 | archclean: | |
104 | $(Q)$(MAKE) $(clean)=$(boot) | |
105 | ||
1da177e4 LT |
106 | # Don't use tabs in echo arguments |
107 | define archhelp | |
108 | echo '* image - Kernel image for IPL ($(boot)/image)' | |
109 | endef |