OpenWrt – Blame information for rev 1

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1 office 1 #
2 # Copyright (C) 2006-2007 OpenWrt.org
3 #
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
6 #
7 include $(INCLUDE_DIR)/prereq.mk
8 include $(INCLUDE_DIR)/depends.mk
9  
10 ifneq ($(DUMP),1)
11 all: compile
12 endif
13  
14 KERNEL_FILE_DEPENDS=$(GENERIC_BACKPORT_DIR) $(GENERIC_PATCH_DIR) $(GENERIC_HACK_DIR) $(PATCH_DIR) $(GENERIC_FILES_DIR) $(FILES_DIR)
15 STAMP_PREPARED=$(LINUX_DIR)/.prepared$(if $(QUILT)$(DUMP),,_$(shell $(call find_md5,$(KERNEL_FILE_DEPENDS),)))
16 STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
17 include $(INCLUDE_DIR)/download.mk
18 include $(INCLUDE_DIR)/quilt.mk
19 include $(INCLUDE_DIR)/kernel-defaults.mk
20  
21 define Kernel/Prepare
22 $(call Kernel/Prepare/Default)
23 endef
24  
25 define Kernel/Configure
26 $(call Kernel/Configure/Default)
27 endef
28  
29 define Kernel/CompileModules
30 $(call Kernel/CompileModules/Default)
31 endef
32  
33 define Kernel/CompileImage
34 $(call Kernel/CompileImage/Default)
35 $(call Kernel/CompileImage/Initramfs)
36 endef
37  
38 define Kernel/Clean
39 $(call Kernel/Clean/Default)
40 endef
41  
42 define Download/kernel
43 URL:=$(LINUX_SITE)
44 FILE:=$(LINUX_SOURCE)
45 HASH:=$(LINUX_KERNEL_HASH)
46 endef
47  
48 KERNEL_GIT_OPTS:=
49 ifneq ($(strip $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)),"")
50 KERNEL_GIT_OPTS+=--reference $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)
51 endif
52  
53 define Download/git-kernel
54 URL:=$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI))
55 PROTO:=git
56 VERSION:=$(CONFIG_KERNEL_GIT_REF)
57 FILE:=$(LINUX_SOURCE)
58 SUBDIR:=linux-$(LINUX_VERSION)
59 OPTS:=$(KERNEL_GIT_OPTS)
60 endef
61  
62 ifdef CONFIG_COLLECT_KERNEL_DEBUG
63 define Kernel/CollectDebug
64 rm -rf $(KERNEL_BUILD_DIR)/debug
65 mkdir -p $(KERNEL_BUILD_DIR)/debug/modules
66 $(CP) $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/debug/
67 -$(CP) \
68 $(STAGING_DIR_ROOT)/lib/modules/$(LINUX_VERSION)/* \
69 $(KERNEL_BUILD_DIR)/debug/modules/
70 $(FIND) $(KERNEL_BUILD_DIR)/debug -type f | $(XARGS) $(KERNEL_CROSS)strip --only-keep-debug
71 $(TAR) c -C $(KERNEL_BUILD_DIR) debug \
72 $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
73 | bzip2 -c -9 > $(BIN_DIR)/kernel-debug.tar.bz2
74 endef
75 endif
76  
77 ifeq ($(DUMP)$(filter prereq clean refresh update,$(MAKECMDGOALS)),)
78 ifneq ($(if $(QUILT),,$(CONFIG_AUTOREBUILD)),)
79 define Kernel/Autoclean
80 $(PKG_BUILD_DIR)/.dep_files: $(STAMP_PREPARED)
81 $(call rdep,$(KERNEL_FILE_DEPENDS),$(STAMP_PREPARED),$(PKG_BUILD_DIR)/.dep_files,-x "*/.dep_*")
82 endef
83 endif
84 endif
85  
86 define BuildKernel
87 $(if $(QUILT),$(Build/Quilt))
88 $(if $(LINUX_SITE),$(call Download,kernel))
89 $(if $(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),$(call Download,git-kernel))
90  
91 .NOTPARALLEL:
92  
93 $(Kernel/Autoclean)
94 $(STAMP_PREPARED): $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
95 -rm -rf $(KERNEL_BUILD_DIR)
96 -mkdir -p $(KERNEL_BUILD_DIR)
97 $(Kernel/Prepare)
98 touch $$@
99  
100 $(KERNEL_BUILD_DIR)/symtab.h: FORCE
101 rm -f $(KERNEL_BUILD_DIR)/symtab.h
102 touch $(KERNEL_BUILD_DIR)/symtab.h
103 +$(KERNEL_MAKE) vmlinux
104 find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
105 xargs $(TARGET_CROSS)nm | \
106 awk '$$$$1 == "U" { print $$$$2 } ' | \
107 sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt
108 $(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | grep ' [rR] __ksymtab' | sed -e 's,........ [rR] __ksymtab_,,' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt
109 grep -Ff $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt
110 grep -Fvf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt
111 ( \
112 echo '#define SYMTAB_KEEP \'; \
113 cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
114 awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \
115 echo; \
116 echo '#define SYMTAB_KEEP_GPL \'; \
117 cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
118 awk '{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \
119 echo; \
120 echo '#define SYMTAB_DISCARD \'; \
121 cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
122 awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \
123 echo; \
124 echo '#define SYMTAB_DISCARD_GPL \'; \
125 cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
126 awk '{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \
127 echo; \
128 ) > $$@
129  
130 $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config FORCE
131 $(Kernel/Configure)
132 touch $$@
133  
134 $(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
135 $(Kernel/CompileModules)
136 touch $$@
137  
138 $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
139 $(Kernel/CompileImage)
140 $(Kernel/CollectDebug)
141 touch $$@
142  
143 mostlyclean: FORCE
144 $(Kernel/Clean)
145  
146 define BuildKernel
147 endef
148  
149 download: $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
150 prepare: $(STAMP_PREPARED)
151 compile: $(LINUX_DIR)/.modules
152 $(MAKE) -C image compile TARGET_BUILD=
153  
154 oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
155 rm -f $(LINUX_DIR)/.config.prev
156 rm -f $(STAMP_CONFIGURED)
157 $(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
158 $(_SINGLE)$(KERNEL_MAKE) \
159 $(if $(findstring Darwin,$(HOST_OS)),HOST_LOADLIBES="-L$(STAGING_DIR_HOST)/lib -lncurses") \
160 $$@
161 $(LINUX_RECONF_DIFF) $(LINUX_DIR)/.config > $(LINUX_RECONFIG_TARGET)
162  
163 install: $(LINUX_DIR)/.image
164 +$(MAKE) -C image compile install TARGET_BUILD=
165  
166 clean: FORCE
167 rm -rf $(KERNEL_BUILD_DIR)
168  
169 image-prereq:
170 @+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
171  
172 prereq: image-prereq
173  
174 endef