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
)/host.mk
8 include $(INCLUDE_DIR
)/prereq.mk
9 include $(INCLUDE_DIR
)/depends.mk
15 KERNEL_FILE_DEPENDS
=$(GENERIC_PATCH_DIR
) $(PATCH_DIR
) $(GENERIC_FILES_DIR
) $(FILES_DIR
)
16 STAMP_PREPARED
=$(LINUX_DIR
)/.prepared
$(if
$(QUILT
)$(DUMP
),,_
$(shell $(call find_md5
,$(KERNEL_FILE_DEPENDS
),)))
17 STAMP_CONFIGURED
:=$(LINUX_DIR
)/.configured
18 include $(INCLUDE_DIR
)/download.mk
19 include $(INCLUDE_DIR
)/quilt.mk
20 include $(INCLUDE_DIR
)/kernel-defaults.mk
23 $(call Kernel
/Prepare
/Default
)
26 define Kernel
/Configure
27 $(call Kernel
/Configure
/Default
)
30 define Kernel
/CompileModules
31 $(call Kernel
/CompileModules
/Default
)
34 define Kernel
/CompileImage
35 $(call Kernel
/CompileImage
/Default
)
36 $(call Kernel
/CompileImage
/Initramfs
)
40 $(call Kernel
/Clean
/Default
)
43 define Download
/kernel
46 MD5SUM
:=$(LINUX_KERNEL_MD5SUM
)
49 ifdef CONFIG_COLLECT_KERNEL_DEBUG
50 define Kernel
/CollectDebug
51 rm -rf
$(KERNEL_BUILD_DIR
)/debug
52 mkdir
-p
$(KERNEL_BUILD_DIR
)/debug
/modules
53 $(CP
) $(LINUX_DIR
)/vmlinux
$(KERNEL_BUILD_DIR
)/debug
/
55 $(STAGING_DIR_ROOT
)/lib
/modules
/$(LINUX_VERSION
)/* \
56 $(KERNEL_BUILD_DIR
)/debug
/modules
/
57 $(FIND
) $(KERNEL_BUILD_DIR
)/debug
-type f |
$(XARGS
) $(KERNEL_CROSS
)strip --only-keep-debug
58 $(TAR
) c
-C
$(KERNEL_BUILD_DIR
) debug \
59 $(if
$(SOURCE_DATE_EPOCH
),--mtime
="@$(SOURCE_DATE_EPOCH)") \
60 | bzip2
-c
-9 > $(BIN_DIR
)/kernel-debug.
tar.bz2
64 ifeq ($(DUMP
)$(filter prereq
clean refresh update
,$(MAKECMDGOALS
)),)
65 ifneq ($(if
$(QUILT
),,$(CONFIG_AUTOREBUILD
)),)
66 define Kernel
/Autoclean
67 $(PKG_BUILD_DIR
)/.dep_files
: $(STAMP_PREPARED
)
68 $(call rdep
,$(KERNEL_FILE_DEPENDS
),$(STAMP_PREPARED
),$(PKG_BUILD_DIR
)/.dep_files
,-x
"*/.dep_*")
74 $(if
$(QUILT
),$(Build
/Quilt
))
75 $(if
$(LINUX_SITE
),$(call Download
,kernel
))
80 $(STAMP_PREPARED
): $(if
$(LINUX_SITE
),$(DL_DIR
)/$(LINUX_SOURCE
))
81 -rm -rf
$(KERNEL_BUILD_DIR
)
82 -mkdir
-p
$(KERNEL_BUILD_DIR
)
86 $(KERNEL_BUILD_DIR
)/symtab.h
: FORCE
87 rm -f
$(KERNEL_BUILD_DIR
)/symtab.h
88 touch
$(KERNEL_BUILD_DIR
)/symtab.h
89 +$(MAKE
) $(KERNEL_MAKEOPTS
) vmlinux
90 find
$(LINUX_DIR
) $(STAGING_DIR_ROOT
)/lib
/modules
-name \
*.ko | \
91 xargs
$(TARGET_CROSS
)nm | \
92 awk
'$$$$1 == "U" { print $$$$2 } ' | \
93 sort -u
> $(KERNEL_BUILD_DIR
)/mod_symtab.txt
94 $(TARGET_CROSS
)nm
-n
$(LINUX_DIR
)/vmlinux.o | grep
' [rR] __ksymtab' | sed
-e
's,........ [rR] __ksymtab_,,' > $(KERNEL_BUILD_DIR
)/kernel_symtab.txt
95 grep
-Ff
$(KERNEL_BUILD_DIR
)/mod_symtab.txt
$(KERNEL_BUILD_DIR
)/kernel_symtab.txt
> $(KERNEL_BUILD_DIR
)/sym_include.txt
96 grep
-Fvf
$(KERNEL_BUILD_DIR
)/mod_symtab.txt
$(KERNEL_BUILD_DIR
)/kernel_symtab.txt
> $(KERNEL_BUILD_DIR
)/sym_exclude.txt
98 echo
'#define SYMTAB_KEEP \'; \
99 cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
100 awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \
102 echo '#define SYMTAB_KEEP_GPL \'; \
103 cat
$(KERNEL_BUILD_DIR
)/sym_include.txt | \
104 awk
'{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \
106 echo
'#define SYMTAB_DISCARD \'; \
107 cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
108 awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \
110 echo '#define SYMTAB_DISCARD_GPL \'; \
111 cat
$(KERNEL_BUILD_DIR
)/sym_exclude.txt | \
112 awk
'{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \
116 $(STAMP_CONFIGURED
): $(STAMP_PREPARED
) $(LINUX_KCONFIG_LIST
) $(TOPDIR
)/.config FORCE
120 $(LINUX_DIR
)/.modules
: $(STAMP_CONFIGURED
) $(LINUX_DIR
)/.config FORCE
121 $(Kernel
/CompileModules
)
124 $(LINUX_DIR
)/.image
: $(STAMP_CONFIGURED
) $(if
$(CONFIG_STRIP_KERNEL_EXPORTS
),$(KERNEL_BUILD_DIR
)/symtab.h
) FORCE
125 $(Kernel
/CompileImage
)
126 $(Kernel
/CollectDebug
)
135 download
: $(if
$(LINUX_SITE
),$(DL_DIR
)/$(LINUX_SOURCE
))
136 prepare
: $(STAMP_CONFIGURED
)
137 compile
: $(LINUX_DIR
)/.modules
138 $(MAKE
) -C image compile TARGET_BUILD
=
140 oldconfig menuconfig nconfig
: $(STAMP_PREPARED
) $(STAMP_CHECKED
) FORCE
141 rm -f
$(LINUX_DIR
)/.config.prev
142 rm -f
$(STAMP_CONFIGURED
)
143 $(LINUX_RECONF_CMD
) > $(LINUX_DIR
)/.config
144 $(_SINGLE
)$(MAKE
) -C
$(LINUX_DIR
) $(KERNEL_MAKEOPTS
) HOST_LOADLIBES
="-L$(STAGING_DIR_HOST)/lib -lncurses" $$@
145 $(LINUX_RECONF_DIFF
) $(LINUX_DIR
)/.config
> $(LINUX_RECONFIG_TARGET
)
147 install: $(LINUX_DIR
)/.image
148 +$(MAKE
) -C image compile
install TARGET_BUILD
=
151 rm -rf
$(KERNEL_BUILD_DIR
)
154 @
+$(NO_TRACE_MAKE
) -s
-C image prereq TARGET_BUILD
=