diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /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/Makefile | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/arch/um/Makefile b/arch/um/Makefile new file mode 100644 index 000000000000..97bca6b5ca95 --- /dev/null +++ b/arch/um/Makefile | |||
@@ -0,0 +1,210 @@ | |||
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 \ | ||
20 | arch-signal.h module.h vm-flags.h | ||
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 | ||
47 | SYS_DIR := $(ARCH_DIR)/include/sysdep-$(SUBARCH) | ||
48 | |||
49 | include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH) | ||
50 | |||
51 | core-y += $(SUBARCH_CORE) | ||
52 | libs-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 | |||
59 | CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \ | ||
60 | $(ARCH_INCLUDE) $(MODE_INCLUDE) | ||
61 | |||
62 | USER_CFLAGS := $(patsubst -I%,,$(CFLAGS)) | ||
63 | USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \ | ||
64 | $(MODE_INCLUDE) $(ARCH_USER_CFLAGS) | ||
65 | CFLAGS += -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask | ||
66 | CFLAGS += $(call cc-option,-fno-unit-at-a-time,) | ||
67 | |||
68 | #This will adjust *FLAGS accordingly to the platform. | ||
69 | include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS) | ||
70 | |||
71 | # These are needed for clean and mrproper, since in that case .config is not | ||
72 | # included; the values here are meaningless | ||
73 | |||
74 | CONFIG_NEST_LEVEL ?= 0 | ||
75 | CONFIG_KERNEL_HALF_GIGS ?= 0 | ||
76 | |||
77 | SIZE = (($(CONFIG_NEST_LEVEL) + $(CONFIG_KERNEL_HALF_GIGS)) * 0x20000000) | ||
78 | |||
79 | ifeq ($(CONFIG_MODE_SKAS), y) | ||
80 | $(SYS_HEADERS) : $(ARCH_DIR)/include/skas_ptregs.h | ||
81 | endif | ||
82 | |||
83 | .PHONY: linux | ||
84 | |||
85 | all: linux | ||
86 | |||
87 | linux: vmlinux | ||
88 | ln -f $< $@ | ||
89 | |||
90 | define 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.' | ||
95 | endef | ||
96 | |||
97 | $(shell cd $(ARCH_DIR) && ln -sf Kconfig_$(SUBARCH) Kconfig_arch) | ||
98 | |||
99 | prepare: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS) \ | ||
100 | $(ARCH_DIR)/kernel/vmlinux.lds.S | ||
101 | |||
102 | LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static | ||
103 | LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib | ||
104 | |||
105 | LD_SCRIPT-$(CONFIG_LD_SCRIPT_STATIC) := uml.lds.S | ||
106 | LD_SCRIPT-$(CONFIG_LD_SCRIPT_DYN) := dyn.lds.S | ||
107 | |||
108 | CPP_MODE-$(CONFIG_MODE_TT) := -DMODE_TT | ||
109 | CONFIG_KERNEL_STACK_ORDER ?= 2 | ||
110 | STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] ) | ||
111 | |||
112 | ifndef START | ||
113 | START = $$(($(TOP_ADDR) - $(SIZE))) | ||
114 | endif | ||
115 | |||
116 | CPPFLAGS_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. | ||
122 | LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc | ||
123 | |||
124 | CFLAGS_vmlinux = $(LINK-y) $(LINK_WRAPS) | ||
125 | define 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 | ||
132 | endef | ||
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. | ||
136 | CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/include/uml-config.h \ | ||
137 | $(GEN_HEADERS) $(ARCH_DIR)/include/skas_ptregs.h | ||
138 | |||
139 | MRPROPER_FILES += $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) \ | ||
140 | $(addprefix $(ARCH_DIR)/kernel/,$(KERN_SYMLINKS)) $(ARCH_DIR)/os \ | ||
141 | $(ARCH_DIR)/Kconfig_arch | ||
142 | |||
143 | archclean: | ||
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 | |||
162 | include/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 | ||
175 | define filechk_umlconfig | ||
176 | sed 's/ CONFIG/ UML_CONFIG/' | ||
177 | endef | ||
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 | |||
210 | export SUBARCH USER_CFLAGS OS | ||