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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 | ||
ecc354a9 PBG |
54 | # -Dvmap=kernel_vmap affects everything, and prevents anything from |
55 | # referencing the libpcap.o symbol so named. | |
fd748104 PBG |
56 | # |
57 | # Same things for in6addr_loopback - found in libc. | |
1da177e4 LT |
58 | |
59 | CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \ | |
fd748104 PBG |
60 | $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \ |
61 | -Din6addr_loopback=kernel_in6addr_loopback | |
62 | ||
93ea5a5b | 63 | AFLAGS += $(ARCH_INCLUDE) |
1da177e4 LT |
64 | |
65 | USER_CFLAGS := $(patsubst -I%,,$(CFLAGS)) | |
66 | USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \ | |
20d00213 | 67 | $(MODE_INCLUDE) |
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 | ||
20d00213 PBG |
77 | include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH) |
78 | ||
1da177e4 LT |
79 | #This will adjust *FLAGS accordingly to the platform. |
80 | include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS) | |
81 | ||
82 | # These are needed for clean and mrproper, since in that case .config is not | |
83 | # included; the values here are meaningless | |
84 | ||
85 | CONFIG_NEST_LEVEL ?= 0 | |
86 | CONFIG_KERNEL_HALF_GIGS ?= 0 | |
87 | ||
88 | SIZE = (($(CONFIG_NEST_LEVEL) + $(CONFIG_KERNEL_HALF_GIGS)) * 0x20000000) | |
89 | ||
90 | ifeq ($(CONFIG_MODE_SKAS), y) | |
91 | $(SYS_HEADERS) : $(ARCH_DIR)/include/skas_ptregs.h | |
92 | endif | |
93 | ||
94 | .PHONY: linux | |
95 | ||
96 | all: linux | |
97 | ||
98 | linux: vmlinux | |
99 | ln -f $< $@ | |
100 | ||
101 | define archhelp | |
102 | echo '* linux - Binary kernel image (./linux) - for backward' | |
103 | echo ' compatibility only, this creates a hard link to the' | |
104 | echo ' real kernel binary, the the "vmlinux" binary you' | |
105 | echo ' find in the kernel root.' | |
106 | endef | |
107 | ||
fd7aab9c | 108 | ifneq ($(KBUILD_SRC),) |
08b178eb | 109 | $(shell mkdir -p $(ARCH_DIR) && ln -fsn $(srctree)/$(ARCH_DIR)/Kconfig.$(SUBARCH) $(ARCH_DIR)/Kconfig.arch) |
fd7aab9c | 110 | else |
08b178eb | 111 | $(shell cd $(ARCH_DIR) && ln -sf Kconfig.$(SUBARCH) Kconfig.arch) |
fd7aab9c | 112 | endif |
1da177e4 | 113 | |
5bb78269 | 114 | archprepare: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS) |
1da177e4 LT |
115 | |
116 | LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static | |
117 | LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib | |
118 | ||
1da177e4 LT |
119 | CPP_MODE-$(CONFIG_MODE_TT) := -DMODE_TT |
120 | CONFIG_KERNEL_STACK_ORDER ?= 2 | |
121 | STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] ) | |
122 | ||
123 | ifndef START | |
1c30385a | 124 | START = $(shell echo $$[ $(TOP_ADDR) - $(SIZE) ] ) |
1da177e4 LT |
125 | endif |
126 | ||
1c30385a | 127 | CPPFLAGS_vmlinux.lds = -U$(SUBARCH) \ |
1da177e4 | 128 | -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \ |
1c30385a PBG |
129 | -DELF_FORMAT="$(ELF_FORMAT)" $(CPP_MODE-y) \ |
130 | -DKERNEL_STACK_SIZE=$(STACK_SIZE) \ | |
131 | -DUNMAP_PATH=arch/um/sys-$(SUBARCH)/unmap_fin.o | |
1da177e4 LT |
132 | |
133 | #The wrappers will select whether using "malloc" or the kernel allocator. | |
134 | LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc | |
135 | ||
20d00213 | 136 | CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAPS) |
1da177e4 LT |
137 | define cmd_vmlinux__ |
138 | $(CC) $(CFLAGS_vmlinux) -o $@ \ | |
139 | -Wl,-T,$(vmlinux-lds) $(vmlinux-init) \ | |
140 | -Wl,--start-group $(vmlinux-main) -Wl,--end-group \ | |
776cfebb | 141 | -lutil \ |
1da177e4 LT |
142 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) \ |
143 | FORCE ,$^) ; rm -f linux | |
144 | endef | |
145 | ||
146 | #When cleaning we don't include .config, so we don't include | |
147 | #TT or skas makefiles and don't clean skas_ptregs.h. | |
148 | CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/include/uml-config.h \ | |
8b8a9da5 | 149 | $(GEN_HEADERS) $(ARCH_DIR)/include/skas_ptregs.h \ |
2d5cbf32 | 150 | $(ARCH_DIR)/include/user_constants.h $(ARCH_DIR)/Kconfig.arch |
1da177e4 LT |
151 | |
152 | MRPROPER_FILES += $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) \ | |
2d5cbf32 | 153 | $(addprefix $(ARCH_DIR)/kernel/,$(KERN_SYMLINKS)) $(ARCH_DIR)/os |
1da177e4 LT |
154 | |
155 | archclean: | |
156 | $(Q)$(MAKE) $(clean)=$(ARCH_DIR)/util | |
2d5cbf32 | 157 | $(Q)$(MAKE) $(clean)=$(ARCH_DIR)/os-$(OS)/util |
1da177e4 LT |
158 | @find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \ |
159 | -o -name '*.gcov' \) -type f -print | xargs rm -f | |
160 | ||
1da177e4 LT |
161 | $(SYMLINK_HEADERS): |
162 | @echo ' SYMLINK $@' | |
fd7aab9c AV |
163 | ifneq ($(KBUILD_SRC),) |
164 | ln -fsn $(srctree)/include/asm-um/$(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $@ | |
165 | else | |
1da177e4 LT |
166 | $(Q)cd $(TOPDIR)/$(dir $@) ; \ |
167 | ln -sf $(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $(notdir $@) | |
fd7aab9c | 168 | endif |
1da177e4 LT |
169 | |
170 | include/asm-um/arch: | |
171 | @echo ' SYMLINK $@' | |
fd7aab9c AV |
172 | ifneq ($(KBUILD_SRC),) |
173 | $(Q)mkdir -p include/asm-um | |
174 | $(Q)ln -fsn $(srctree)/include/asm-$(SUBARCH) include/asm-um/arch | |
175 | else | |
1da177e4 | 176 | $(Q)cd $(TOPDIR)/include/asm-um && ln -sf ../asm-$(SUBARCH) arch |
fd7aab9c | 177 | endif |
1da177e4 LT |
178 | |
179 | $(ARCH_DIR)/include/sysdep: | |
180 | @echo ' SYMLINK $@' | |
fd7aab9c AV |
181 | ifneq ($(KBUILD_SRC),) |
182 | $(Q)mkdir -p $(ARCH_DIR)/include | |
183 | $(Q)mkdir -p $(ARCH_DIR)/include2 | |
184 | $(Q)ln -fsn sysdep-$(SUBARCH) $(ARCH_DIR)/include/sysdep | |
185 | $(Q)ln -fsn $(srctree)/$(ARCH_DIR)/include/sysdep-$(SUBARCH) $(ARCH_DIR)/include2/sysdep | |
186 | else | |
1da177e4 | 187 | $(Q)cd $(ARCH_DIR)/include && ln -sf sysdep-$(SUBARCH) sysdep |
fd7aab9c | 188 | endif |
1da177e4 LT |
189 | |
190 | $(ARCH_DIR)/os: | |
191 | @echo ' SYMLINK $@' | |
fd7aab9c AV |
192 | ifneq ($(KBUILD_SRC),) |
193 | $(Q)ln -fsn $(srctree)/$(ARCH_DIR)/os-$(OS) $(ARCH_DIR)/os | |
194 | else | |
1da177e4 | 195 | $(Q)cd $(ARCH_DIR) && ln -sf os-$(OS) os |
fd7aab9c | 196 | endif |
1da177e4 LT |
197 | |
198 | # Generated files | |
199 | define filechk_umlconfig | |
200 | sed 's/ CONFIG/ UML_CONFIG/' | |
201 | endef | |
202 | ||
f64a227b SR |
203 | define filechk_gen-asm-offsets |
204 | (set -e; \ | |
205 | echo "#ifndef __ASM_OFFSETS_H__"; \ | |
206 | echo "#define __ASM_OFFSETS_H__"; \ | |
207 | echo "/*"; \ | |
208 | echo " * DO NOT MODIFY."; \ | |
209 | echo " *"; \ | |
210 | echo " * This file was generated by arch/$(ARCH)/Makefile"; \ | |
211 | echo " *"; \ | |
212 | echo " */"; \ | |
213 | echo ""; \ | |
214 | sed -ne "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"; \ | |
215 | echo ""; \ | |
216 | echo "#endif" ) | |
217 | endef | |
218 | ||
1da177e4 LT |
219 | $(ARCH_DIR)/include/uml-config.h : include/linux/autoconf.h |
220 | $(call filechk,umlconfig) | |
221 | ||
8d0b9dc9 AV |
222 | $(ARCH_DIR)/user-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.c |
223 | $(CC) $(USER_CFLAGS) -S -o $@ $< | |
224 | ||
225 | $(ARCH_DIR)/user-offsets.h: $(ARCH_DIR)/user-offsets.s | |
226 | $(call filechk,gen-asm-offsets) | |
227 | ||
228 | CLEAN_FILES += $(ARCH_DIR)/user-offsets.s $(ARCH_DIR)/user-offsets.h | |
229 | ||
a31769ed AV |
230 | $(ARCH_DIR)/kernel-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/kernel-offsets.c \ |
231 | $(ARCH_SYMLINKS) \ | |
232 | $(SYS_DIR)/sc.h \ | |
233 | include/asm include/linux/version.h \ | |
234 | include/config/MARKER \ | |
235 | $(ARCH_DIR)/include/user_constants.h | |
236 | $(CC) $(CFLAGS) $(NOSTDINC_FLAGS) $(CPPFLAGS) -S -o $@ $< | |
237 | ||
238 | $(ARCH_DIR)/kernel-offsets.h: $(ARCH_DIR)/kernel-offsets.s | |
239 | $(call filechk,gen-asm-offsets) | |
240 | ||
241 | CLEAN_FILES += $(ARCH_DIR)/kernel-offsets.s $(ARCH_DIR)/kernel-offsets.h | |
242 | ||
1da177e4 LT |
243 | $(ARCH_DIR)/include/task.h: $(ARCH_DIR)/util/mk_task |
244 | $(call filechk,gen_header) | |
245 | ||
fcddd72e | 246 | $(ARCH_DIR)/include/user_constants.h: $(ARCH_DIR)/os-$(OS)/util/mk_user_constants |
1da177e4 LT |
247 | $(call filechk,gen_header) |
248 | ||
249 | $(ARCH_DIR)/include/kern_constants.h: $(ARCH_DIR)/util/mk_constants | |
250 | $(call filechk,gen_header) | |
251 | ||
252 | $(ARCH_DIR)/include/skas_ptregs.h: $(ARCH_DIR)/kernel/skas/util/mk_ptregs | |
253 | $(call filechk,gen_header) | |
254 | ||
fcddd72e | 255 | $(ARCH_DIR)/os-$(OS)/util/mk_user_constants: $(ARCH_DIR)/os-$(OS)/util FORCE ; |
1da177e4 LT |
256 | |
257 | $(ARCH_DIR)/util/mk_task $(ARCH_DIR)/util/mk_constants: $(ARCH_DIR)/include/user_constants.h $(ARCH_DIR)/util \ | |
258 | FORCE ; | |
259 | ||
260 | $(ARCH_DIR)/kernel/skas/util/mk_ptregs: $(ARCH_DIR)/kernel/skas/util FORCE ; | |
261 | ||
da998a2a | 262 | $(ARCH_DIR)/util: scripts_basic $(SYS_DIR)/sc.h $(ARCH_DIR)/kernel-offsets.h FORCE |
1da177e4 LT |
263 | $(Q)$(MAKE) $(build)=$@ |
264 | ||
1cd3bc1c | 265 | $(ARCH_DIR)/kernel/skas/util: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE |
1da177e4 LT |
266 | $(Q)$(MAKE) $(build)=$@ |
267 | ||
b6b038a2 | 268 | $(ARCH_DIR)/os-$(OS)/util: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE |
1da177e4 LT |
269 | $(Q)$(MAKE) $(build)=$@ |
270 | ||
271 | export SUBARCH USER_CFLAGS OS |