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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/um/Makefile
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/um/Makefile')
-rw-r--r--arch/um/Makefile210
1 files changed, 210 insertions, 0 deletions
diff --git a/arch/um/Makefile b/arch/um/Makefile
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index 000000000000..97bca6b5ca95
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@@ -0,0 +1,210 @@
1#
2# Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
3# Licensed under the GPL
4#
5
6ARCH_DIR := arch/um
7OS := $(shell uname -s)
8# We require bash because the vmlinux link and loader script cpp use bash
9# features.
10SHELL := /bin/bash
11
12filechk_gen_header = $<
13
14core-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.
19SYMLINK_HEADERS := archparam.h system.h sigcontext.h processor.h ptrace.h \
20 arch-signal.h module.h vm-flags.h
21SYMLINK_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!
28ARCH_SYMLINKS = include/asm-um/arch $(ARCH_DIR)/include/sysdep $(ARCH_DIR)/os \
29 $(SYMLINK_HEADERS) $(ARCH_DIR)/include/uml-config.h
30
31GEN_HEADERS += $(ARCH_DIR)/include/task.h $(ARCH_DIR)/include/kern_constants.h
32
33um-modes-$(CONFIG_MODE_TT) += tt
34um-modes-$(CONFIG_MODE_SKAS) += skas
35
36MODE_INCLUDE += $(foreach mode,$(um-modes-y),\
37 -I$(srctree)/$(ARCH_DIR)/kernel/$(mode)/include)
38
39MAKEFILES-INCL += $(foreach mode,$(um-modes-y),\
40 $(srctree)/$(ARCH_DIR)/Makefile-$(mode))
41
42ifneq ($(MAKEFILES-INCL),)
43 include $(MAKEFILES-INCL)
44endif
45
46ARCH_INCLUDE := -I$(ARCH_DIR)/include
47SYS_DIR := $(ARCH_DIR)/include/sysdep-$(SUBARCH)
48
49include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH)
50
51core-y += $(SUBARCH_CORE)
52libs-y += $(SUBARCH_LIBS)
53
54# -Derrno=kernel_errno - This turns all kernel references to errno into
55# kernel_errno to separate them from the libc errno. This allows -fno-common
56# in CFLAGS. Otherwise, it would cause ld to complain about the two different
57# errnos.
58
59CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \
60 $(ARCH_INCLUDE) $(MODE_INCLUDE)
61
62USER_CFLAGS := $(patsubst -I%,,$(CFLAGS))
63USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \
64 $(MODE_INCLUDE) $(ARCH_USER_CFLAGS)
65CFLAGS += -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask
66CFLAGS += $(call cc-option,-fno-unit-at-a-time,)
67
68#This will adjust *FLAGS accordingly to the platform.
69include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
70
71# These are needed for clean and mrproper, since in that case .config is not
72# included; the values here are meaningless
73
74CONFIG_NEST_LEVEL ?= 0
75CONFIG_KERNEL_HALF_GIGS ?= 0
76
77SIZE = (($(CONFIG_NEST_LEVEL) + $(CONFIG_KERNEL_HALF_GIGS)) * 0x20000000)
78
79ifeq ($(CONFIG_MODE_SKAS), y)
80$(SYS_HEADERS) : $(ARCH_DIR)/include/skas_ptregs.h
81endif
82
83.PHONY: linux
84
85all: linux
86
87linux: vmlinux
88 ln -f $< $@
89
90define archhelp
91 echo '* linux - Binary kernel image (./linux) - for backward'
92 echo ' compatibility only, this creates a hard link to the'
93 echo ' real kernel binary, the the "vmlinux" binary you'
94 echo ' find in the kernel root.'
95endef
96
97$(shell cd $(ARCH_DIR) && ln -sf Kconfig_$(SUBARCH) Kconfig_arch)
98
99prepare: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS) \
100 $(ARCH_DIR)/kernel/vmlinux.lds.S
101
102LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static
103LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib
104
105LD_SCRIPT-$(CONFIG_LD_SCRIPT_STATIC) := uml.lds.S
106LD_SCRIPT-$(CONFIG_LD_SCRIPT_DYN) := dyn.lds.S
107
108CPP_MODE-$(CONFIG_MODE_TT) := -DMODE_TT
109CONFIG_KERNEL_STACK_ORDER ?= 2
110STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] )
111
112ifndef START
113 START = $$(($(TOP_ADDR) - $(SIZE)))
114endif
115
116CPPFLAGS_vmlinux.lds = $(shell echo -U$(SUBARCH) \
117 -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \
118 -DELF_FORMAT=\"$(ELF_FORMAT)\" $(CPP_MODE-y) \
119 -DKERNEL_STACK_SIZE=$(STACK_SIZE))
120
121#The wrappers will select whether using "malloc" or the kernel allocator.
122LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
123
124CFLAGS_vmlinux = $(LINK-y) $(LINK_WRAPS)
125define cmd_vmlinux__
126 $(CC) $(CFLAGS_vmlinux) -o $@ \
127 -Wl,-T,$(vmlinux-lds) $(vmlinux-init) \
128 -Wl,--start-group $(vmlinux-main) -Wl,--end-group \
129 -L/usr/lib -lutil \
130 $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) \
131 FORCE ,$^) ; rm -f linux
132endef
133
134#When cleaning we don't include .config, so we don't include
135#TT or skas makefiles and don't clean skas_ptregs.h.
136CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/include/uml-config.h \
137 $(GEN_HEADERS) $(ARCH_DIR)/include/skas_ptregs.h
138
139MRPROPER_FILES += $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) \
140 $(addprefix $(ARCH_DIR)/kernel/,$(KERN_SYMLINKS)) $(ARCH_DIR)/os \
141 $(ARCH_DIR)/Kconfig_arch
142
143archclean:
144 $(Q)$(MAKE) $(clean)=$(ARCH_DIR)/util
145 @find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \
146 -o -name '*.gcov' \) -type f -print | xargs rm -f
147
148#We need to re-preprocess this when the symlink dest changes.
149#So we touch it when needed.
150$(ARCH_DIR)/kernel/vmlinux.lds.S: FORCE
151 $(Q)if [ "$(shell readlink $@)" != "$(LD_SCRIPT-y)" ]; then \
152 echo ' SYMLINK $@'; \
153 ln -sf $(LD_SCRIPT-y) $@; \
154 touch $@; \
155 fi;
156
157$(SYMLINK_HEADERS):
158 @echo ' SYMLINK $@'
159 $(Q)cd $(TOPDIR)/$(dir $@) ; \
160 ln -sf $(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $(notdir $@)
161
162include/asm-um/arch:
163 @echo ' SYMLINK $@'
164 $(Q)cd $(TOPDIR)/include/asm-um && ln -sf ../asm-$(SUBARCH) arch
165
166$(ARCH_DIR)/include/sysdep:
167 @echo ' SYMLINK $@'
168 $(Q)cd $(ARCH_DIR)/include && ln -sf sysdep-$(SUBARCH) sysdep
169
170$(ARCH_DIR)/os:
171 @echo ' SYMLINK $@'
172 $(Q)cd $(ARCH_DIR) && ln -sf os-$(OS) os
173
174# Generated files
175define filechk_umlconfig
176 sed 's/ CONFIG/ UML_CONFIG/'
177endef
178
179$(ARCH_DIR)/include/uml-config.h : include/linux/autoconf.h
180 $(call filechk,umlconfig)
181
182$(ARCH_DIR)/include/task.h: $(ARCH_DIR)/util/mk_task
183 $(call filechk,gen_header)
184
185$(ARCH_DIR)/include/user_constants.h: $(ARCH_DIR)/os/util/mk_user_constants
186 $(call filechk,gen_header)
187
188$(ARCH_DIR)/include/kern_constants.h: $(ARCH_DIR)/util/mk_constants
189 $(call filechk,gen_header)
190
191$(ARCH_DIR)/include/skas_ptregs.h: $(ARCH_DIR)/kernel/skas/util/mk_ptregs
192 $(call filechk,gen_header)
193
194$(ARCH_DIR)/os/util/mk_user_constants: $(ARCH_DIR)/os/util FORCE ;
195
196$(ARCH_DIR)/util/mk_task $(ARCH_DIR)/util/mk_constants: $(ARCH_DIR)/include/user_constants.h $(ARCH_DIR)/util \
197 FORCE ;
198
199$(ARCH_DIR)/kernel/skas/util/mk_ptregs: $(ARCH_DIR)/kernel/skas/util FORCE ;
200
201$(ARCH_DIR)/util: scripts_basic $(SYS_DIR)/sc.h FORCE
202 $(Q)$(MAKE) $(build)=$@
203
204$(ARCH_DIR)/kernel/skas/util: scripts_basic FORCE
205 $(Q)$(MAKE) $(build)=$@
206
207$(ARCH_DIR)/os/util: scripts_basic FORCE
208 $(Q)$(MAKE) $(build)=$@
209
210export SUBARCH USER_CFLAGS OS