Difference between revisions of "ROM Android: Compile Kernel untuk MediaTek"

Latest revision as of 05:50, 31 December 2014

MTK KERNEL BUIDER - Cách tạo kernel hoàn chỉnh cho MTK chip

KConfig Process Concerned about point 1 : kernel builder: @ makeMtk make-f mediatek / build / makemtk.mk kernel

@ mediatek / build / makemtk.mk kernel / build.sh

@ kernel / build.sh make mediatek-configs nice make $ {makeflags} $ {makedefs} silentoldconfig make $ {makeflags} $ {makejobs} $ {makedefs}

mediatek-configs goal is how original ? : @ kernel / Makefile include $ (srctree) / arch / $ (SRCARCH) / Makefile @ kernel / arch / arm / Makefile include .. / mediatek / build / kernel / Makefile @ mediatek / build / kernel / Makefile . config mediatek-configs: $ (MTK_ROOT_GEN_CONFIG) / kconfig $ (MTK_ROOT_GEN_CONFIG) @ echo "[COPY] $ <-> $ @" @ cp $ <$ @ @ echo "[COPY] $ <->. config" @ cp $ <. config

@ kernel / Kconfig source "arch / $ SRCARCH / Kconfig" @ alps / kernel / arch / arm / Kconfig source ".. / mediatek / source / kernel / Kconfig" @ alps / mediatek / source / kernel / Kconfig 31 if ARCH_MT6573 32 source "../mediatek/platform/mt6573/kernel/Kconfig/Kernel" 33 source "../mediatek/platform/mt6573/kernel/Kconfig/Board" 34 source "../mediatek/platform/mt6573/kernel/Kconfig/Drivers" 35 endif

@ mediatek/platform/mt6573/kernel/Kconfig/Drivers 34 # Frame Buffer Related 35 menuconfig MTK_FB # FB_MT6516 FB_MT6573 36 bool "MediaTek Framebuffer Driver" 37 depends on FB 38 select FB_CFB_FILLRECT 39 select FB_CFB_COPYAREA 40 select FB_CFB_IMAGEBLIT 41 select FB_SOFT_CURSOR 42 --- help --- 43 This selects the MediaTek (R) frame buffer driver. 44 If you want to use MediaTek (R) frame buffer diver, say Y here. 45 If unsure, say N.

Point 2 concerns : menuconfig come from ? Explained:

@ alps / kernel / Makefile % config: scripts_basic outputmakefile FORCE $ (Q) mkdir-p include / linux include / config $ (Q) $ (MAKE) $ (build) = scripts / kconfig $ @

Regarding the last of a command : I print out is this effect: make-f scripts / Makefile.build obj = scripts / kconfig menuconfig

I do not know $ (build) variable is how calculated , and later found is this: @ kernel / Makefile 329 include $ (srctree) / scripts / Kbuild.include

@ kernel / scripts / Kbuild.include 156 # # # 157 # Shorthand for $ (Q) $ (MAKE)-f scripts / Makefile.build obj = 158 # Usage: 159 # $ (Q) $ (MAKE) $ (build) = dir 160 build: =-f $ (if $ (KBUILD_SRC), $ (srctree) /) scripts / Makefile.build obj

Thus, parsing out the above things ,

@ kernel / scripts / Makefile.build 41 # The filename Kbuild has precedence over Makefile 42 kbuild-dir: = $ (if $ (filter /%, $ (src)), $ (src), $ (srctree) / $ (src)) 43 kbuild-file: = $ (if $ (wildcard $ (kbuild-dir) / Kbuild), $ (kbuild-dir) / Kbuild, $ (kbuild-dir) / Makefile) 44 include $ (kbuild-file) This will kernel / scripts / kconfig / Makefile included into it. View file kernel / scripts / kconfig / Makefile I also do not have much to say : @ scripts / kconfig / Makefile xconfig: $ (obj) / qconf

$ <$ (Kconfig)

gconfig: $ (obj) / gconf

$ <$ (Kconfig)

menuconfig: $ (obj) / mconf

$ <$ (Kconfig)

config: $ (obj) / conf

$ <- Oldaskconfig $ (Kconfig)

nconfig: $ (obj) / nconf

$ <$ (Kconfig)

oldconfig: $ (obj) / conf

$ <- $ @ $ (Kconfig)

silentoldconfig: $ (obj) / conf

$ (Q) mkdir-p include / generated
$ <- $ @ $ (Kconfig)
cp-f include / generated / autoconf.h include / linux / autoconf.h

Point 3 concerns : . config file will eventually be updated once : Check kernel log

[COPY] .. / mediatek/config/out/s816_bef/autoconfig/kconfig -> mediatek-configs
[COPY] .. / mediatek/config/out/s816_bef/autoconfig/kconfig -> config.
HOSTCC scripts / kconfig / conf.o
SHIPPED scripts / kconfig / zconf.tab.c
SHIPPED scripts / kconfig / lex.zconf.c
SHIPPED scripts / kconfig / zconf.hash.c
HOSTCC scripts / kconfig / zconf.tab.o
HOSTLD scripts / kconfig / conf
scripts / kconfig / conf - silentoldconfig Kconfig
#
# Configuration written to. Config
#
cp-f include / generated / autoconf.h include / linux / autoconf.h

Look kernel config program scripts / kconfig / conf inside the code are:

scripts / kconfig / confdata.c: 66: char * name = getenv ("KCONFIG_CONFIG");
And @ Makefile
240: KCONFIG_CONFIG = config?.
export KCONFIG_CONFIG
You can learn this information.

mediatek/config/out/s816_bef/autoconfig/kconfig: mediatek/config/mt6575/autoconfig/kconfig/platform

mediatek / config / common / autoconfig / kconfig / AEE mediatek/config/s816_bef/autoconfig/kconfig/project

mediatek/config/out/s816_bef/autoconfig @ echo "[CONFIG] generate mediatek/config/out/s816_bef/autoconfig/kconfig" @ cat mediatek/config/mt6575/autoconfig/kconfig/platform mediatek / config / common / autoconfig / kconfig / AEE

mediatek/config/s816_bef/autoconfig/kconfig/project | python mediatek / build / tools / config / merge-kconfig.py>

mediatek/config/out/s816_bef/autoconfig/kconfig

Should be checked :

define. mtk.config.generate-auto-merge-rules
. PHONY:. Mediatek-configs $ (1)
mediatek-configs:. mediatek-configs $ (1)
mediatek-configs $ (1):. $ (2)
$ (2): PRIVATE_FILE_LIST: = $ (3)
$ ( 2 ) : $ ( 3 ) $ ( 4 )
@ echo "[CONFIG] generate $ (2)"
@ cat $ (3) | $ (5)> $ (2)
endef

This should be similar to the $ (call. Mtk.config.generate-auto-merge-rules, kconfig, xx.xx.xx) More likely is this : $ (. Call mtk.config.generate-auto-rules, xx, xx, xx) This is necessary to validate themselves .

Difference between revisions of "ROM Android: Compile Kernel untuk MediaTek"

Latest revision as of 05:50, 31 December 2014

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@@ Line 1: / Line 1: @@
-MTK Kernel Builder
+MTK KERNEL BUIDER - Cách tạo kernel hoàn chỉnh cho MTK chip
--09-24 16:44:41|  分类： Android |  标签：kernel  android  makefile   |举报 |字号 订阅
+KConfig Process
-KConfig 流程
+Concerned about point 1 :
-关心点1：
 kernel builder:
-@makeMtk
+@ makeMtk
-   make -f mediatek/build/makemtk.mk kernel
+make-f mediatek / build / makemtk.mk kernel
-@mediatek/build/makemtk.mk
-  kernel/build.sh
-@kernel/build.sh
+@ mediatek / build / makemtk.mk
-  make mediatek-configs
+kernel / build.sh
-  nice make ${makeflags} ${makedefs} silentoldconfig
-  make ${makeflags} ${makejobs} ${makedefs}
-mediatek-configs 目标是怎么回事? 原来：
-    @kernel/Makefile
-include $(srctree)/arch/$(SRCARCH)/Makefile
-    @kernel/arch/arm/Makefile
-include ../mediatek/build/kernel/Makefile
-    @mediatek/build/kernel/Makefile
-.config mediatek-configs: $(MTK_ROOT_GEN_CONFIG)/kconfig $(MTK_ROOT_GEN_CONFIG)
-        @echo "[COPY] $< --> $@"
-        @cp $< $@
-        @echo "[COPY] $< --> .config"
-        @cp $< .config
-@kernel/Kconfig
-  source "arch/$SRCARCH/Kconfig"
-@alps/kernel/arch/arm/Kconfig
-source "../mediatek/source/kernel/Kconfig"
-@alps/mediatek/source/kernel/Kconfig
-if ARCH_MT6573
-source "../mediatek/platform/mt6573/kernel/Kconfig/Kernel"
-source "../mediatek/platform/mt6573/kernel/Kconfig/Board"
-source "../mediatek/platform/mt6573/kernel/Kconfig/Drivers"
-endif
-@mediatek/platform/mt6573/kernel/Kconfig/Drivers
+@ kernel / build.sh
-# Frame Buffer Related
+make mediatek-configs
-menuconfig MTK_FB # FB_MT6516 FB_MT6573
+nice make $ {makeflags} $ {makedefs} silentoldconfig
-         bool "MediaTek Framebuffer Driver"
+make $ {makeflags} $ {makejobs} $ {makedefs}
-         depends on FB
-         select FB_CFB_FILLRECT
-         select FB_CFB_COPYAREA
-         select FB_CFB_IMAGEBLIT
-         select FB_SOFT_CURSOR
-         ---help---
-           This selects the MediaTek(R) frame buffer driver.
-           If you want to use MediaTek(R) frame buffer diver, say Y here.
-           If unsure, say N.
+mediatek-configs goal is how original ? :
+@ kernel / Makefile
+include $ (srctree) / arch / $ (SRCARCH) / Makefile
+@ kernel / arch / arm / Makefile
+include .. / mediatek / build / kernel / Makefile
+@ mediatek / build / kernel / Makefile
+. config mediatek-configs: $ (MTK_ROOT_GEN_CONFIG) / kconfig $ (MTK_ROOT_GEN_CONFIG)
+@ echo "[COPY] $ <-> $ @"
+@ cp $ <$ @
+@ echo "[COPY] $ <->. config"
+@ cp $ <. config
-关心点2：
-menuconfig是从哪里来？这样解释：
-@alps/kernel/Makefile
+@ kernel / Kconfig
-%config: scripts_basic outputmakefile FORCE
+source "arch / $ SRCARCH / Kconfig"
-        $(Q)mkdir -p include/linux include/config
+@ alps / kernel / arch / arm / Kconfig
-        $(Q)$(MAKE) $(build)=scripts/kconfig $@
+source ".. / mediatek / source / kernel / Kconfig"
+@ alps / mediatek / source / kernel / Kconfig
+if ARCH_MT6573
+source "../mediatek/platform/mt6573/kernel/Kconfig/Kernel"
+source "../mediatek/platform/mt6573/kernel/Kconfig/Board"
+source "../mediatek/platform/mt6573/kernel/Kconfig/Drivers"
+endif
-关于最后的一条命令： 我打印出来是这样的效果:
-make -f scripts/Makefile.build obj=scripts/kconfig menuconfig
-不知道$(build)变量是怎么计算出来的，后来发现是这样的：
+@ mediatek/platform/mt6573/kernel/Kconfig/Drivers
-@kernel/Makefile
+# Frame Buffer Related
-include $(srctree)/scripts/Kbuild.include
+menuconfig MTK_FB # FB_MT6516 FB_MT6573
+bool "MediaTek Framebuffer Driver"
+depends on FB
+select FB_CFB_FILLRECT
+select FB_CFB_COPYAREA
+select FB_CFB_IMAGEBLIT
+select FB_SOFT_CURSOR
+--- help ---
+This selects the MediaTek (R) frame buffer driver.
+If you want to use MediaTek (R) frame buffer diver, say Y here.
+If unsure, say N.
-@kernel/scripts/Kbuild.include
-###
+Point 2 concerns :
-# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
+menuconfig come from ? Explained:
+@ alps / kernel / Makefile
+% config: scripts_basic outputmakefile FORCE
+$ (Q) mkdir-p include / linux include / config
+$ (Q) $ (MAKE) $ (build) = scripts / kconfig $ @
+Regarding the last of a command : I print out is this effect:
+make-f scripts / Makefile.build obj = scripts / kconfig menuconfig
+I do not know $ (build) variable is how calculated , and later found is this:
+@ kernel / Makefile
+include $ (srctree) / scripts / Kbuild.include
+@ kernel / scripts / Kbuild.include
+# # #
+# Shorthand for $ (Q) $ (MAKE)-f scripts / Makefile.build obj =
 # Usage:
-# $(Q)$(MAKE) $(build)=dir
+# $ (Q) $ (MAKE) $ (build) = dir
-build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
+build: =-f $ (if $ (KBUILD_SRC), $ (srctree) /) scripts / Makefile.build obj
+Thus, parsing out the above things ,
-这样，就解析出来了上面的东西，
-@kernel/scripts/Makefile.build
+@ kernel / scripts / Makefile.build
 # The filename Kbuild has precedence over Makefile
-kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
+kbuild-dir: = $ (if $ (filter /%, $ (src)), $ (src), $ (srctree) / $ (src))
-kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
+kbuild-file: = $ (if $ (wildcard $ (kbuild-dir) / Kbuild), $ (kbuild-dir) / Kbuild, $ (kbuild-dir) / Makefile)
-include $(kbuild-file)
+include $ (kbuild-file)
-这样就将 kernel/scripts/kconfig/Makefile 包含进去了。
+This will kernel / scripts / kconfig / Makefile included into it.
-查看文件 kernel/scripts/kconfig/Makefile 也就不用我多说了：
+View file kernel / scripts / kconfig / Makefile I also do not have much to say :
-@scripts/kconfig/Makefile
+@ scripts / kconfig / Makefile
-xconfig: $(obj)/qconf
+xconfig: $ (obj) / qconf
-        $< $(Kconfig)
+ $ <$ (Kconfig)
-gconfig: $(obj)/gconf
-        $< $(Kconfig)
-menuconfig: $(obj)/mconf
+gconfig: $ (obj) / gconf
-        $< $(Kconfig)
+ $ <$ (Kconfig)
-config: $(obj)/conf
-        $< --oldaskconfig $(Kconfig)
-nconfig: $(obj)/nconf
+menuconfig: $ (obj) / mconf
-        $< $(Kconfig)
+ $ <$ (Kconfig)
-oldconfig: $(obj)/conf
-        $< --$@ $(Kconfig)
-silentoldconfig: $(obj)/conf
+config: $ (obj) / conf
-        $(Q)mkdir -p include/generated
+ $ <- Oldaskconfig $ (Kconfig)
-        $< --$@ $(Kconfig)
-        cp -f include/generated/autoconf.h include/linux/autoconf.h
-关心点3：
+nconfig: $ (obj) / nconf
-.config 文件最终还会被更新一次：查看kernel log
+  $ <$ (Kconfig)
-[COPY] ../mediatek/config/out/s816_bef/autoconfig/kconfig --> mediatek-configs
-[COPY] ../mediatek/config/out/s816_bef/autoconfig/kconfig --> .config
-  HOSTCC  scripts/kconfig/conf.o
-  SHIPPED scripts/kconfig/zconf.tab.c
-  SHIPPED scripts/kconfig/lex.zconf.c
-  SHIPPED scripts/kconfig/zconf.hash.c
-  HOSTCC  scripts/kconfig/zconf.tab.o
-  HOSTLD  scripts/kconfig/conf
-scripts/kconfig/conf --silentoldconfig Kconfig
-#
-# configuration written to .config
-#
-cp -f include/generated/autoconf.h include/linux/autoconf.h
-看kernel config 的程序 scripts/kconfig/conf 里面的代码有：
-scripts/kconfig/confdata.c:66:  char *name = getenv("KCONFIG_CONFIG");
-而@Makefile
-:KCONFIG_CONFIG     ?= .config
-export KCONFIG_CONFIG
-可以获知这样的信息。
+oldconfig: $ (obj) / conf
+ $ <- $ @ $ (Kconfig)
-mediatek/config/out/s816_bef/autoconfig/kconfig: mediatek/config/mt6575/autoconfig/kconfig/platform
-mediatek/config/common/autoconfig/kconfig/AEE mediatek/config/s816_bef/autoconfig/kconfig/project
+silentoldconfig: $ (obj) / conf
+ $ (Q) mkdir-p include / generated
+ $ <- $ @ $ (Kconfig)
+ cp-f include / generated / autoconf.h include / linux / autoconf.h
+Point 3 concerns :
+. config file will eventually be updated once : Check kernel log
+ [COPY] .. / mediatek/config/out/s816_bef/autoconfig/kconfig -> mediatek-configs
+ [COPY] .. / mediatek/config/out/s816_bef/autoconfig/kconfig -> config.
+ HOSTCC scripts / kconfig / conf.o
+ SHIPPED scripts / kconfig / zconf.tab.c
+ SHIPPED scripts / kconfig / lex.zconf.c
+ SHIPPED scripts / kconfig / zconf.hash.c
+ HOSTCC scripts / kconfig / zconf.tab.o
+ HOSTLD scripts / kconfig / conf
+ scripts / kconfig / conf - silentoldconfig Kconfig
+ #
+ # Configuration written to. Config
+ #
+ cp-f include / generated / autoconf.h include / linux / autoconf.h
+Look kernel config program scripts / kconfig / conf inside the code are:
+ scripts / kconfig / confdata.c: 66: char * name = getenv ("KCONFIG_CONFIG");
+ And @ Makefile
+: KCONFIG_CONFIG = config?.
+ export KCONFIG_CONFIG
+ You can learn this information.
+mediatek/config/out/s816_bef/autoconfig/kconfig: mediatek/config/mt6575/autoconfig/kconfig/platform
+mediatek / config / common / autoconfig / kconfig / AEE mediatek/config/s816_bef/autoconfig/kconfig/project
 mediatek/config/out/s816_bef/autoconfig
-@echo "[CONFIG] generate mediatek/config/out/s816_bef/autoconfig/kconfig"
+@ echo "[CONFIG] generate mediatek/config/out/s816_bef/autoconfig/kconfig"
-@cat mediatek/config/mt6575/autoconfig/kconfig/platform mediatek/config/common/autoconfig/kconfig/AEE
+@ cat mediatek/config/mt6575/autoconfig/kconfig/platform mediatek / config / common / autoconfig / kconfig / AEE
+mediatek/config/s816_bef/autoconfig/kconfig/project | python mediatek / build / tools / config / merge-kconfig.py>
-mediatek/config/s816_bef/autoconfig/kconfig/project  | python mediatek/build/tools/config/merge-kconfig.py >
 mediatek/config/out/s816_bef/autoconfig/kconfig
-查了一下应该是：
-define .mtk.config.generate-auto-merge-rules
-.PHONY: mediatek-configs.$(1)
-mediatek-configs: mediatek-configs.$(1)
-mediatek-configs.$(1): $(2)
-$(2): PRIVATE_FILE_LIST := $(3)
-$(2): $(3) $(4)
-        @echo "[CONFIG] generate $(2)"
-        @cat $(3) | $(5) > $(2)
-endef
-应该是这样类似的$(call .mtk.config.generate-auto-merge-rules,kconfig,xx.xx.xx)
+Should be checked :
-更有可能是这样的：$(call .mtk.config.generate-auto-rules,xx,xx,xx)
+ define. mtk.config.generate-auto-merge-rules
-这个就要自己去验证了。
+ . PHONY:. Mediatek-configs $ (1)
+ mediatek-configs:. mediatek-configs $ (1)
+ mediatek-configs $ (1):. $ (2)
+ $ (2): PRIVATE_FILE_LIST: = $ (3)
+ $ ( 2 ) : $ ( 3 ) $ ( 4 )
+ @ echo "[CONFIG] generate $ (2)"
+ @ cat $ (3) | $ (5)> $ (2)
+ endef
+This should be similar to the $ (call. Mtk.config.generate-auto-merge-rules, kconfig, xx.xx.xx)
+More likely is this : $ (. Call mtk.config.generate-auto-rules, xx, xx, xx)
+This is necessary to validate themselves .
 ==Referensi==