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1da177e4 LT |
1 | # |
2 | # Copyright (C) 2002 Jeff Dike (jdike@karaya.com) | |
3 | # Licensed under the GPL | |
4 | # | |
5 | ||
6 | ARCH_DIR := arch/um | |
7 | OS := $(shell uname -s) | |
8 | # We require bash because the vmlinux link and loader script cpp use bash | |
9 | # features. | |
10 | SHELL := /bin/bash | |
11 | ||
12 | filechk_gen_header = $< | |
13 | ||
14 | core-y += $(ARCH_DIR)/kernel/ \ | |
15 | $(ARCH_DIR)/drivers/ \ | |
16 | $(ARCH_DIR)/os-$(OS)/ | |
17 | ||
18 | # Have to precede the include because the included Makefiles reference them. | |
19 | SYMLINK_HEADERS := archparam.h system.h sigcontext.h processor.h ptrace.h \ | |
7c5131a5 | 20 | module.h vm-flags.h elf.h |
1da177e4 LT |
21 | SYMLINK_HEADERS := $(foreach header,$(SYMLINK_HEADERS),include/asm-um/$(header)) |
22 | ||
23 | # XXX: The "os" symlink is only used by arch/um/include/os.h, which includes | |
24 | # ../os/include/file.h | |
25 | # | |
26 | # These are cleaned up during mrproper. Please DO NOT fix it again, this is | |
27 | # the Correct Thing(tm) to do! | |
28 | ARCH_SYMLINKS = include/asm-um/arch $(ARCH_DIR)/include/sysdep $(ARCH_DIR)/os \ | |
29 | $(SYMLINK_HEADERS) $(ARCH_DIR)/include/uml-config.h | |
30 | ||
31 | GEN_HEADERS += $(ARCH_DIR)/include/task.h $(ARCH_DIR)/include/kern_constants.h | |
32 | ||
33 | um-modes-$(CONFIG_MODE_TT) += tt | |
34 | um-modes-$(CONFIG_MODE_SKAS) += skas | |
35 | ||
36 | MODE_INCLUDE += $(foreach mode,$(um-modes-y),\ | |
37 | -I$(srctree)/$(ARCH_DIR)/kernel/$(mode)/include) | |
38 | ||
39 | MAKEFILES-INCL += $(foreach mode,$(um-modes-y),\ | |
40 | $(srctree)/$(ARCH_DIR)/Makefile-$(mode)) | |
41 | ||
42 | ifneq ($(MAKEFILES-INCL),) | |
43 | include $(MAKEFILES-INCL) | |
44 | endif | |
45 | ||
46 | ARCH_INCLUDE := -I$(ARCH_DIR)/include | |
fd7aab9c AV |
47 | ifneq ($(KBUILD_SRC),) |
48 | ARCH_INCLUDE += -I$(ARCH_DIR)/include2 | |
49 | ARCH_INCLUDE += -I$(srctree)/$(ARCH_DIR)/include | |
50 | MRPROPER_DIRS += $(ARCH_DIR)/include2 | |
51 | endif | |
1da177e4 LT |
52 | SYS_DIR := $(ARCH_DIR)/include/sysdep-$(SUBARCH) |
53 | ||
54 | include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH) | |
55 | ||
56 | core-y += $(SUBARCH_CORE) | |
57 | libs-y += $(SUBARCH_LIBS) | |
58 | ||
ecc354a9 PBG |
59 | # -Dvmap=kernel_vmap affects everything, and prevents anything from |
60 | # referencing the libpcap.o symbol so named. | |
1da177e4 LT |
61 | |
62 | CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \ | |
ecc354a9 | 63 | $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap |
1da177e4 LT |
64 | |
65 | USER_CFLAGS := $(patsubst -I%,,$(CFLAGS)) | |
66 | USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \ | |
67 | $(MODE_INCLUDE) $(ARCH_USER_CFLAGS) | |
ecc354a9 PBG |
68 | |
69 | # -Derrno=kernel_errno - This turns all kernel references to errno into | |
70 | # kernel_errno to separate them from the libc errno. This allows -fno-common | |
71 | # in CFLAGS. Otherwise, it would cause ld to complain about the two different | |
72 | # errnos. | |
73 | ||
1da177e4 LT |
74 | CFLAGS += -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask |
75 | CFLAGS += $(call cc-option,-fno-unit-at-a-time,) | |
76 | ||
77 | #This will adjust *FLAGS accordingly to the platform. | |
78 | include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS) | |
79 | ||
80 | # These are needed for clean and mrproper, since in that case .config is not | |
81 | # included; the values here are meaningless | |
82 | ||
83 | CONFIG_NEST_LEVEL ?= 0 | |
84 | CONFIG_KERNEL_HALF_GIGS ?= 0 | |
85 | ||
86 | SIZE = (($(CONFIG_NEST_LEVEL) + $(CONFIG_KERNEL_HALF_GIGS)) * 0x20000000) | |
87 | ||
88 | ifeq ($(CONFIG_MODE_SKAS), y) | |
89 | $(SYS_HEADERS) : $(ARCH_DIR)/include/skas_ptregs.h | |
90 | endif | |
91 | ||
92 | .PHONY: linux | |
93 | ||
94 | all: linux | |
95 | ||
96 | linux: vmlinux | |
97 | ln -f $< $@ | |
98 | ||
99 | define archhelp | |
100 | echo '* linux - Binary kernel image (./linux) - for backward' | |
101 | echo ' compatibility only, this creates a hard link to the' | |
102 | echo ' real kernel binary, the the "vmlinux" binary you' | |
103 | echo ' find in the kernel root.' | |
104 | endef | |
105 | ||
fd7aab9c AV |
106 | ifneq ($(KBUILD_SRC),) |
107 | $(shell mkdir -p $(ARCH_DIR) && ln -fsn $(srctree)/$(ARCH_DIR)/Kconfig_$(SUBARCH) $(ARCH_DIR)/Kconfig_arch) | |
108 | CLEAN_FILES += $(ARCH_DIR)/Kconfig_arch | |
109 | else | |
1da177e4 | 110 | $(shell cd $(ARCH_DIR) && ln -sf Kconfig_$(SUBARCH) Kconfig_arch) |
fd7aab9c | 111 | endif |
1da177e4 | 112 | |
03f81dc5 | 113 | prepare: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS) |
1da177e4 LT |
114 | |
115 | LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static | |
116 | LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib | |
117 | ||
1da177e4 LT |
118 | CPP_MODE-$(CONFIG_MODE_TT) := -DMODE_TT |
119 | CONFIG_KERNEL_STACK_ORDER ?= 2 | |
120 | STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] ) | |
121 | ||
122 | ifndef START | |
1c30385a | 123 | START = $(shell echo $$[ $(TOP_ADDR) - $(SIZE) ] ) |
1da177e4 LT |
124 | endif |
125 | ||
1c30385a | 126 | CPPFLAGS_vmlinux.lds = -U$(SUBARCH) \ |
1da177e4 | 127 | -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \ |
1c30385a PBG |
128 | -DELF_FORMAT="$(ELF_FORMAT)" $(CPP_MODE-y) \ |
129 | -DKERNEL_STACK_SIZE=$(STACK_SIZE) \ | |
130 | -DUNMAP_PATH=arch/um/sys-$(SUBARCH)/unmap_fin.o | |
1da177e4 LT |
131 | |
132 | #The wrappers will select whether using "malloc" or the kernel allocator. | |
133 | LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc | |
134 | ||
135 | CFLAGS_vmlinux = $(LINK-y) $(LINK_WRAPS) | |
136 | define cmd_vmlinux__ | |
137 | $(CC) $(CFLAGS_vmlinux) -o $@ \ | |
138 | -Wl,-T,$(vmlinux-lds) $(vmlinux-init) \ | |
139 | -Wl,--start-group $(vmlinux-main) -Wl,--end-group \ | |
776cfebb | 140 | -lutil \ |
1da177e4 LT |
141 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) \ |
142 | FORCE ,$^) ; rm -f linux | |
143 | endef | |
144 | ||
145 | #When cleaning we don't include .config, so we don't include | |
146 | #TT or skas makefiles and don't clean skas_ptregs.h. | |
147 | CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/include/uml-config.h \ | |
8b8a9da5 PBG |
148 | $(GEN_HEADERS) $(ARCH_DIR)/include/skas_ptregs.h \ |
149 | $(ARCH_DIR)/include/user_constants.h | |
1da177e4 LT |
150 | |
151 | MRPROPER_FILES += $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) \ | |
152 | $(addprefix $(ARCH_DIR)/kernel/,$(KERN_SYMLINKS)) $(ARCH_DIR)/os \ | |
153 | $(ARCH_DIR)/Kconfig_arch | |
154 | ||
155 | archclean: | |
156 | $(Q)$(MAKE) $(clean)=$(ARCH_DIR)/util | |
157 | @find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \ | |
158 | -o -name '*.gcov' \) -type f -print | xargs rm -f | |
159 | ||
1da177e4 LT |
160 | $(SYMLINK_HEADERS): |
161 | @echo ' SYMLINK $@' | |
fd7aab9c AV |
162 | ifneq ($(KBUILD_SRC),) |
163 | ln -fsn $(srctree)/include/asm-um/$(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $@ | |
164 | else | |
1da177e4 LT |
165 | $(Q)cd $(TOPDIR)/$(dir $@) ; \ |
166 | ln -sf $(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $(notdir $@) | |
fd7aab9c | 167 | endif |
1da177e4 LT |
168 | |
169 | include/asm-um/arch: | |
170 | @echo ' SYMLINK $@' | |
fd7aab9c AV |
171 | ifneq ($(KBUILD_SRC),) |
172 | $(Q)mkdir -p include/asm-um | |
173 | $(Q)ln -fsn $(srctree)/include/asm-$(SUBARCH) include/asm-um/arch | |
174 | else | |
1da177e4 | 175 | $(Q)cd $(TOPDIR)/include/asm-um && ln -sf ../asm-$(SUBARCH) arch |
fd7aab9c | 176 | endif |
1da177e4 LT |
177 | |
178 | $(ARCH_DIR)/include/sysdep: | |
179 | @echo ' SYMLINK $@' | |
fd7aab9c AV |
180 | ifneq ($(KBUILD_SRC),) |
181 | $(Q)mkdir -p $(ARCH_DIR)/include | |
182 | $(Q)mkdir -p $(ARCH_DIR)/include2 | |
183 | $(Q)ln -fsn sysdep-$(SUBARCH) $(ARCH_DIR)/include/sysdep | |
184 | $(Q)ln -fsn $(srctree)/$(ARCH_DIR)/include/sysdep-$(SUBARCH) $(ARCH_DIR)/include2/sysdep | |
185 | else | |
1da177e4 | 186 | $(Q)cd $(ARCH_DIR)/include && ln -sf sysdep-$(SUBARCH) sysdep |
fd7aab9c | 187 | endif |
1da177e4 LT |
188 | |
189 | $(ARCH_DIR)/os: | |
190 | @echo ' SYMLINK $@' | |
fd7aab9c AV |
191 | ifneq ($(KBUILD_SRC),) |
192 | $(Q)ln -fsn $(srctree)/$(ARCH_DIR)/os-$(OS) $(ARCH_DIR)/os | |
193 | else | |
1da177e4 | 194 | $(Q)cd $(ARCH_DIR) && ln -sf os-$(OS) os |
fd7aab9c | 195 | endif |
1da177e4 LT |
196 | |
197 | # Generated files | |
198 | define filechk_umlconfig | |
199 | sed 's/ CONFIG/ UML_CONFIG/' | |
200 | endef | |
201 | ||
202 | $(ARCH_DIR)/include/uml-config.h : include/linux/autoconf.h | |
203 | $(call filechk,umlconfig) | |
204 | ||
8d0b9dc9 AV |
205 | $(ARCH_DIR)/user-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.c |
206 | $(CC) $(USER_CFLAGS) -S -o $@ $< | |
207 | ||
208 | $(ARCH_DIR)/user-offsets.h: $(ARCH_DIR)/user-offsets.s | |
209 | $(call filechk,gen-asm-offsets) | |
210 | ||
211 | CLEAN_FILES += $(ARCH_DIR)/user-offsets.s $(ARCH_DIR)/user-offsets.h | |
212 | ||
a31769ed AV |
213 | $(ARCH_DIR)/kernel-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/kernel-offsets.c \ |
214 | $(ARCH_SYMLINKS) \ | |
215 | $(SYS_DIR)/sc.h \ | |
216 | include/asm include/linux/version.h \ | |
217 | include/config/MARKER \ | |
218 | $(ARCH_DIR)/include/user_constants.h | |
219 | $(CC) $(CFLAGS) $(NOSTDINC_FLAGS) $(CPPFLAGS) -S -o $@ $< | |
220 | ||
221 | $(ARCH_DIR)/kernel-offsets.h: $(ARCH_DIR)/kernel-offsets.s | |
222 | $(call filechk,gen-asm-offsets) | |
223 | ||
224 | CLEAN_FILES += $(ARCH_DIR)/kernel-offsets.s $(ARCH_DIR)/kernel-offsets.h | |
225 | ||
1da177e4 LT |
226 | $(ARCH_DIR)/include/task.h: $(ARCH_DIR)/util/mk_task |
227 | $(call filechk,gen_header) | |
228 | ||
fcddd72e | 229 | $(ARCH_DIR)/include/user_constants.h: $(ARCH_DIR)/os-$(OS)/util/mk_user_constants |
1da177e4 LT |
230 | $(call filechk,gen_header) |
231 | ||
232 | $(ARCH_DIR)/include/kern_constants.h: $(ARCH_DIR)/util/mk_constants | |
233 | $(call filechk,gen_header) | |
234 | ||
235 | $(ARCH_DIR)/include/skas_ptregs.h: $(ARCH_DIR)/kernel/skas/util/mk_ptregs | |
236 | $(call filechk,gen_header) | |
237 | ||
fcddd72e | 238 | $(ARCH_DIR)/os-$(OS)/util/mk_user_constants: $(ARCH_DIR)/os-$(OS)/util FORCE ; |
1da177e4 LT |
239 | |
240 | $(ARCH_DIR)/util/mk_task $(ARCH_DIR)/util/mk_constants: $(ARCH_DIR)/include/user_constants.h $(ARCH_DIR)/util \ | |
241 | FORCE ; | |
242 | ||
243 | $(ARCH_DIR)/kernel/skas/util/mk_ptregs: $(ARCH_DIR)/kernel/skas/util FORCE ; | |
244 | ||
da998a2a | 245 | $(ARCH_DIR)/util: scripts_basic $(SYS_DIR)/sc.h $(ARCH_DIR)/kernel-offsets.h FORCE |
1da177e4 LT |
246 | $(Q)$(MAKE) $(build)=$@ |
247 | ||
1cd3bc1c | 248 | $(ARCH_DIR)/kernel/skas/util: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE |
1da177e4 LT |
249 | $(Q)$(MAKE) $(build)=$@ |
250 | ||
fcddd72e | 251 | $(ARCH_DIR)/os-$(OS)/util: scripts_basic FORCE |
1da177e4 LT |
252 | $(Q)$(MAKE) $(build)=$@ |
253 | ||
254 | export SUBARCH USER_CFLAGS OS |