2 # Copyright (C) 2006-2007 OpenWrt.org
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
7 include $(INCLUDE_DIR
)/prereq.mk
8 include $(INCLUDE_DIR
)/depends.mk
14 KERNEL_FILE_DEPENDS
=$(GENERIC_PATCH_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
22 $(call Kernel
/Prepare
/Default
)
25 define Kernel
/Configure
26 $(call Kernel
/Configure
/Default
)
29 define Kernel
/CompileModules
30 $(call Kernel
/CompileModules
/Default
)
33 define Kernel
/CompileImage
34 $(call Kernel
/CompileImage
/Default
)
35 $(call Kernel
/CompileImage
/Initramfs
)
39 $(call Kernel
/Clean
/Default
)
42 define Download
/kernel
45 HASH
:=$(LINUX_KERNEL_HASH
)
49 ifneq ($(strip $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY
)),"")
50 KERNEL_GIT_OPTS
+=--reference
$(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY
)
53 ifneq ($(strip $(CONFIG_KERNEL_GIT_BRANCH
)),"")
54 KERNEL_GIT_OPTS
+=--branch
$(CONFIG_KERNEL_GIT_BRANCH
)
57 define Download
/git-kernel
58 URL
:=$(call qstrip
,$(CONFIG_KERNEL_GIT_CLONE_URI
))
60 VERSION
:=$(CONFIG_KERNEL_GIT_BRANCH
)
62 SUBDIR
:=linux-
$(LINUX_VERSION
)
63 OPTS
:=$(KERNEL_GIT_OPTS
)
66 ifdef CONFIG_COLLECT_KERNEL_DEBUG
67 define Kernel
/CollectDebug
68 rm -rf
$(KERNEL_BUILD_DIR
)/debug
69 mkdir
-p
$(KERNEL_BUILD_DIR
)/debug
/modules
70 $(CP
) $(LINUX_DIR
)/vmlinux
$(KERNEL_BUILD_DIR
)/debug
/
72 $(STAGING_DIR_ROOT
)/lib
/modules
/$(LINUX_VERSION
)/* \
73 $(KERNEL_BUILD_DIR
)/debug
/modules
/
74 $(FIND
) $(KERNEL_BUILD_DIR
)/debug
-type f |
$(XARGS
) $(KERNEL_CROSS
)strip --only-keep-debug
75 $(TAR
) c
-C
$(KERNEL_BUILD_DIR
) debug \
76 $(if
$(SOURCE_DATE_EPOCH
),--mtime
="@$(SOURCE_DATE_EPOCH)") \
77 | bzip2
-c
-9 > $(BIN_DIR
)/kernel-debug.
tar.bz2
81 ifeq ($(DUMP
)$(filter prereq
clean refresh update
,$(MAKECMDGOALS
)),)
82 ifneq ($(if
$(QUILT
),,$(CONFIG_AUTOREBUILD
)),)
83 define Kernel
/Autoclean
84 $(PKG_BUILD_DIR
)/.dep_files
: $(STAMP_PREPARED
)
85 $(call rdep
,$(KERNEL_FILE_DEPENDS
),$(STAMP_PREPARED
),$(PKG_BUILD_DIR
)/.dep_files
,-x
"*/.dep_*")
91 $(if
$(QUILT
),$(Build
/Quilt
))
92 $(if
$(LINUX_SITE
),$(call Download
,kernel
))
93 $(if
$(call qstrip
,$(CONFIG_KERNEL_GIT_CLONE_URI
)),$(call Download
,git-kernel
))
98 $(STAMP_PREPARED
): $(if
$(LINUX_SITE
),$(DL_DIR
)/$(LINUX_SOURCE
))
99 -rm -rf
$(KERNEL_BUILD_DIR
)
100 -mkdir
-p
$(KERNEL_BUILD_DIR
)
104 $(KERNEL_BUILD_DIR
)/symtab.h
: FORCE
105 rm -f
$(KERNEL_BUILD_DIR
)/symtab.h
106 touch
$(KERNEL_BUILD_DIR
)/symtab.h
107 +$(KERNEL_MAKE
) vmlinux
108 find
$(LINUX_DIR
) $(STAGING_DIR_ROOT
)/lib
/modules
-name \
*.ko | \
109 xargs
$(TARGET_CROSS
)nm | \
110 awk
'$$$$1 == "U" { print $$$$2 } ' | \
111 sort -u
> $(KERNEL_BUILD_DIR
)/mod_symtab.txt
112 $(TARGET_CROSS
)nm
-n
$(LINUX_DIR
)/vmlinux.o | grep
' [rR] __ksymtab' | sed
-e
's,........ [rR] __ksymtab_,,' > $(KERNEL_BUILD_DIR
)/kernel_symtab.txt
113 grep
-Ff
$(KERNEL_BUILD_DIR
)/mod_symtab.txt
$(KERNEL_BUILD_DIR
)/kernel_symtab.txt
> $(KERNEL_BUILD_DIR
)/sym_include.txt
114 grep
-Fvf
$(KERNEL_BUILD_DIR
)/mod_symtab.txt
$(KERNEL_BUILD_DIR
)/kernel_symtab.txt
> $(KERNEL_BUILD_DIR
)/sym_exclude.txt
116 echo
'#define SYMTAB_KEEP \'; \
117 cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
118 awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \
120 echo '#define SYMTAB_KEEP_GPL \'; \
121 cat
$(KERNEL_BUILD_DIR
)/sym_include.txt | \
122 awk
'{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \
124 echo
'#define SYMTAB_DISCARD \'; \
125 cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
126 awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \
128 echo '#define SYMTAB_DISCARD_GPL \'; \
129 cat
$(KERNEL_BUILD_DIR
)/sym_exclude.txt | \
130 awk
'{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \
134 $(STAMP_CONFIGURED
): $(STAMP_PREPARED
) $(LINUX_KCONFIG_LIST
) $(TOPDIR
)/.config FORCE
138 $(LINUX_DIR
)/.modules
: $(STAMP_CONFIGURED
) $(LINUX_DIR
)/.config FORCE
139 $(Kernel
/CompileModules
)
142 $(LINUX_DIR
)/.image
: $(STAMP_CONFIGURED
) $(if
$(CONFIG_STRIP_KERNEL_EXPORTS
),$(KERNEL_BUILD_DIR
)/symtab.h
) FORCE
143 $(Kernel
/CompileImage
)
144 $(Kernel
/CollectDebug
)
153 download
: $(if
$(LINUX_SITE
),$(DL_DIR
)/$(LINUX_SOURCE
))
154 prepare
: $(STAMP_PREPARED
)
155 compile
: $(LINUX_DIR
)/.modules
156 $(MAKE
) -C image compile TARGET_BUILD
=
158 oldconfig menuconfig nconfig
: $(STAMP_PREPARED
) $(STAMP_CHECKED
) FORCE
159 rm -f
$(LINUX_DIR
)/.config.prev
160 rm -f
$(STAMP_CONFIGURED
)
161 $(LINUX_RECONF_CMD
) > $(LINUX_DIR
)/.config
162 $(_SINGLE
)$(KERNEL_MAKE
) \
163 $(if
$(findstring Darwin
,$(HOST_OS
)),HOST_LOADLIBES
="-L$(STAGING_DIR_HOST)/lib -lncurses") \
165 $(LINUX_RECONF_DIFF
) $(LINUX_DIR
)/.config
> $(LINUX_RECONFIG_TARGET
)
167 install: $(LINUX_DIR
)/.image
168 +$(MAKE
) -C image compile
install TARGET_BUILD
=
171 rm -rf
$(KERNEL_BUILD_DIR
)
174 @
+$(NO_TRACE_MAKE
) -s
-C image prereq TARGET_BUILD
=