2 # Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
3 # Licensed under the GPL
7 OS
:= $(shell uname
-s
)
8 # We require bash because the vmlinux link and loader script cpp use bash
12 filechk_gen_header
= $<
14 core-y
+= $(ARCH_DIR
)/kernel
/ \
15 $(ARCH_DIR
)/drivers
/ \
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 \
20 module.h vm-flags.h elf.h
21 SYMLINK_HEADERS
:= $(foreach header
,$(SYMLINK_HEADERS
),include/asm-um
/$(header
))
23 # XXX: The "os" symlink is only used by arch/um/include/os.h, which includes
24 # ../os/include/file.h
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
31 GEN_HEADERS
+= $(ARCH_DIR
)/include/task.h
$(ARCH_DIR
)/include/kern_constants.h
33 um-modes-
$(CONFIG_MODE_TT
) += tt
34 um-modes-
$(CONFIG_MODE_SKAS
) += skas
36 MODE_INCLUDE
+= $(foreach mode
,$(um-modes-y
),\
37 -I
$(srctree
)/$(ARCH_DIR
)/kernel
/$(mode
)/include)
39 MAKEFILES-INCL
+= $(foreach mode
,$(um-modes-y
),\
40 $(srctree
)/$(ARCH_DIR
)/Makefile-
$(mode
))
42 ifneq ($(MAKEFILES-INCL
),)
43 include $(MAKEFILES-INCL
)
46 ARCH_INCLUDE
:= -I
$(ARCH_DIR
)/include
47 ifneq ($(KBUILD_SRC
),)
48 ARCH_INCLUDE
+= -I
$(ARCH_DIR
)/include2
49 ARCH_INCLUDE
+= -I
$(srctree
)/$(ARCH_DIR
)/include
50 MRPROPER_DIRS
+= $(ARCH_DIR
)/include2
52 SYS_DIR
:= $(ARCH_DIR
)/include/sysdep-
$(SUBARCH
)
54 # -Dvmap=kernel_vmap affects everything, and prevents anything from
55 # referencing the libpcap.o symbol so named.
57 # Same things for in6addr_loopback - found in libc.
59 CFLAGS
+= $(CFLAGS-y
) -D__arch_um__
-DSUBARCH
=\"$(SUBARCH
)\" \
60 $(ARCH_INCLUDE
) $(MODE_INCLUDE
) -Dvmap
=kernel_vmap \
61 -Din6addr_loopback
=kernel_in6addr_loopback
63 AFLAGS
+= $(ARCH_INCLUDE
)
65 USER_CFLAGS
:= $(patsubst -I
%,,$(CFLAGS
))
66 USER_CFLAGS
:= $(patsubst -D__KERNEL__
,,$(USER_CFLAGS
)) $(ARCH_INCLUDE
) \
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
74 CFLAGS
+= -Derrno
=kernel_errno
-Dsigprocmask
=kernel_sigprocmask
75 CFLAGS
+= $(call cc-option
,-fno-unit-at-a-time
,)
77 include $(srctree
)/$(ARCH_DIR
)/Makefile-
$(SUBARCH
)
79 #This will adjust *FLAGS accordingly to the platform.
80 include $(srctree
)/$(ARCH_DIR
)/Makefile-os-
$(OS
)
82 # These are needed for clean and mrproper, since in that case .config is not
83 # included; the values here are meaningless
85 CONFIG_NEST_LEVEL ?
= 0
86 CONFIG_KERNEL_HALF_GIGS ?
= 0
88 SIZE
= (($(CONFIG_NEST_LEVEL
) + $(CONFIG_KERNEL_HALF_GIGS
)) * 0x20000000)
90 ifeq ($(CONFIG_MODE_SKAS
), y
)
91 $(SYS_HEADERS
) : $(ARCH_DIR
)/include/skas_ptregs.h
102 echo
'* linux - Binary kernel image (./linux) - for backward'
103 echo
' compatibility only, this creates a hard link to the'
104 echo
' real kernel binary, the the "vmlinux" binary you'
105 echo
' find in the kernel root.'
108 ifneq ($(KBUILD_SRC
),)
109 $(shell mkdir
-p
$(ARCH_DIR
) && ln
-fsn
$(srctree
)/$(ARCH_DIR
)/Kconfig.
$(SUBARCH
) $(ARCH_DIR
)/Kconfig.arch
)
111 $(shell cd
$(ARCH_DIR
) && ln
-sf Kconfig.
$(SUBARCH
) Kconfig.arch
)
114 archprepare
: $(ARCH_SYMLINKS
) $(SYS_HEADERS
) $(GEN_HEADERS
)
116 LINK-
$(CONFIG_LD_SCRIPT_STATIC
) += -static
117 LINK-
$(CONFIG_LD_SCRIPT_DYN
) += -Wl
,-rpath
,/lib
119 CPP_MODE-
$(CONFIG_MODE_TT
) := -DMODE_TT
120 CONFIG_KERNEL_STACK_ORDER ?
= 2
121 STACK_SIZE
:= $(shell echo
$$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER
)) ] )
124 START
= $(shell echo
$$[ $(TOP_ADDR
) - $(SIZE
) ] )
127 CPPFLAGS_vmlinux.lds
= -U
$(SUBARCH
) \
128 -DSTART
=$(START
) -DELF_ARCH
=$(ELF_ARCH
) \
129 -DELF_FORMAT
="$(ELF_FORMAT)" $(CPP_MODE-y
) \
130 -DKERNEL_STACK_SIZE
=$(STACK_SIZE
) \
131 -DUNMAP_PATH
=arch
/um
/sys-
$(SUBARCH
)/unmap_fin.o
133 #The wrappers will select whether using "malloc" or the kernel allocator.
134 LINK_WRAPS
= -Wl
,--wrap
,malloc
-Wl
,--wrap
,free
-Wl
,--wrap
,calloc
136 CFLAGS_vmlinux
:= $(LINK-y
) $(LINK_WRAPS
)
138 $(CC
) $(CFLAGS_vmlinux
) -o
$@ \
139 -Wl
,-T
,$(vmlinux-lds
) $(vmlinux-init
) \
140 -Wl
,--start-group
$(vmlinux-main
) -Wl
,--end-group \
142 $(filter-out $(vmlinux-lds
) $(vmlinux-init
) $(vmlinux-main
) \
143 FORCE
,$^
) ; rm -f linux
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 \
149 $(GEN_HEADERS
) $(ARCH_DIR
)/include/skas_ptregs.h \
150 $(ARCH_DIR
)/include/user_constants.h
$(ARCH_DIR
)/Kconfig.arch
152 MRPROPER_FILES
+= $(SYMLINK_HEADERS
) $(ARCH_SYMLINKS
) \
153 $(addprefix $(ARCH_DIR
)/kernel
/,$(KERN_SYMLINKS
)) $(ARCH_DIR
)/os
156 $(Q
)$(MAKE
) $(clean)=$(ARCH_DIR
)/util
157 $(Q
)$(MAKE
) $(clean)=$(ARCH_DIR
)/os-
$(OS
)/util
158 @find . \
( -name
'*.bb' -o
-name
'*.bbg' -o
-name
'*.da' \
159 -o
-name
'*.gcov' \
) -type f
-print | xargs
rm -f
163 ifneq ($(KBUILD_SRC
),)
164 ln
-fsn
$(srctree
)/include/asm-um
/$(basename $(notdir $@
))-$(SUBARCH
)$(suffix $@
) $@
166 $(Q
)cd
$(TOPDIR
)/$(dir $@
) ; \
167 ln
-sf
$(basename $(notdir $@
))-$(SUBARCH
)$(suffix $@
) $(notdir $@
)
172 ifneq ($(KBUILD_SRC
),)
173 $(Q
)mkdir
-p
include/asm-um
174 $(Q
)ln
-fsn
$(srctree
)/include/asm-
$(SUBARCH
) include/asm-um
/arch
176 $(Q
)cd
$(TOPDIR
)/include/asm-um
&& ln
-sf ..
/asm-
$(SUBARCH
) arch
179 $(ARCH_DIR
)/include/sysdep
:
181 ifneq ($(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
187 $(Q
)cd
$(ARCH_DIR
)/include && ln
-sf sysdep-
$(SUBARCH
) sysdep
192 ifneq ($(KBUILD_SRC
),)
193 $(Q
)ln
-fsn
$(srctree
)/$(ARCH_DIR
)/os-
$(OS
) $(ARCH_DIR
)/os
195 $(Q
)cd
$(ARCH_DIR
) && ln
-sf os-
$(OS
) os
199 define filechk_umlconfig
200 sed
's/ CONFIG/ UML_CONFIG/'
203 define filechk_gen-asm-offsets
205 echo
"#ifndef __ASM_OFFSETS_H__"; \
206 echo
"#define __ASM_OFFSETS_H__"; \
208 echo
" * DO NOT MODIFY."; \
210 echo
" * This file was generated by arch/$(ARCH)/Makefile"; \
214 sed
-ne
"/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"; \
219 $(ARCH_DIR
)/include/uml-config.h
: include/linux
/autoconf.h
220 $(call filechk
,umlconfig
)
222 $(ARCH_DIR
)/user-offsets.s
: $(ARCH_DIR
)/sys-
$(SUBARCH
)/user-offsets.c
223 $(CC
) $(USER_CFLAGS
) -S
-o
$@
$<
225 $(ARCH_DIR
)/user-offsets.h
: $(ARCH_DIR
)/user-offsets.s
226 $(call filechk
,gen-asm-offsets
)
228 CLEAN_FILES
+= $(ARCH_DIR
)/user-offsets.s
$(ARCH_DIR
)/user-offsets.h
230 $(ARCH_DIR
)/kernel-offsets.s
: $(ARCH_DIR
)/sys-
$(SUBARCH
)/kernel-offsets.c \
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
$@
$<
238 $(ARCH_DIR
)/kernel-offsets.h
: $(ARCH_DIR
)/kernel-offsets.s
239 $(call filechk
,gen-asm-offsets
)
241 CLEAN_FILES
+= $(ARCH_DIR
)/kernel-offsets.s
$(ARCH_DIR
)/kernel-offsets.h
243 $(ARCH_DIR
)/include/task.h
: $(ARCH_DIR
)/util
/mk_task
244 $(call filechk
,gen_header
)
246 $(ARCH_DIR
)/include/user_constants.h
: $(ARCH_DIR
)/os-
$(OS
)/util
/mk_user_constants
247 $(call filechk
,gen_header
)
249 $(ARCH_DIR
)/include/kern_constants.h
: $(ARCH_DIR
)/util
/mk_constants
250 $(call filechk
,gen_header
)
252 $(ARCH_DIR
)/include/skas_ptregs.h
: $(ARCH_DIR
)/kernel
/skas
/util
/mk_ptregs
253 $(call filechk
,gen_header
)
255 $(ARCH_DIR
)/os-
$(OS
)/util
/mk_user_constants
: $(ARCH_DIR
)/os-
$(OS
)/util FORCE
;
257 $(ARCH_DIR
)/util
/mk_task
$(ARCH_DIR
)/util
/mk_constants
: $(ARCH_DIR
)/include/user_constants.h
$(ARCH_DIR
)/util \
260 $(ARCH_DIR
)/kernel
/skas
/util
/mk_ptregs
: $(ARCH_DIR
)/kernel
/skas
/util FORCE
;
262 $(ARCH_DIR
)/util
: scripts_basic
$(SYS_DIR
)/sc.h
$(ARCH_DIR
)/kernel-offsets.h FORCE
263 $(Q
)$(MAKE
) $(build
)=$@
265 $(ARCH_DIR
)/kernel
/skas
/util
: scripts_basic
$(ARCH_DIR
)/user-offsets.h FORCE
266 $(Q
)$(MAKE
) $(build
)=$@
268 $(ARCH_DIR
)/os-
$(OS
)/util
: scripts_basic
$(ARCH_DIR
)/user-offsets.h FORCE
269 $(Q
)$(MAKE
) $(build
)=$@
271 export SUBARCH USER_CFLAGS OS