Download oracle java 6 : http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase6-419409.html
chose : Linux x64 68.75 MB "jdk-6u45-linux-x64.bin"
# sudo chmode 777 jdk-6u45-linux-x64.bin
# ./jdk-6u45-linux-x64.bin
# export JAVA_HOME=/home/bin/jdk1.6.0_45 (change to your java path)
# export JRE_HOME=${JAVA_HOME}/jre
# export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
# export PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin:$PATH
Modify : build/core/main.mk
+ifeq (0,$(shell expr $$(echo $(MAKE_VERSION) | sed "s/[^0-9\.].*//") = 4.1))
$(warning ********************************************************************************)
$(warning * You are using version $(MAKE_VERSION) of make.)
$(warning * Android can only be built by versions 3.81 and 3.82.)
$(warning * see https://source.android.com/source/download.html)
$(warning ********************************************************************************)
$(error stopping)
+endif
2017年6月1日 星期四
[Android] Generate the test key pairs
About key
A. 簽名類型
android的標準簽名key有：
testkey, media, platform, shared
以上的四種，可以在源碼的/build/target/product/security/裡面看到對應的金鑰，其中shared.pk8代表私密金鑰，shared.x509.pem公開金鑰，一定是"成對"出現的。
其中testkey是作為android編譯的時候默認的簽名key，如果系統中的apk的android.mk中沒有設置LOCAL_CERTIFICATE的值，就默認使用testkey。
而如果設置成：
LOCAL_CERTIFICATE := platform
就代表使用platform來簽名，這樣的話這個apk就擁有了和system相同的簽名，因為系統級別的簽名也是使用的platform來簽名，此時使用android:sharedUserId="android.uid.system"才有用！
最後我們需要將testkey置換成releasekey。
B. 製作Release key
subject='/C=US/ST=California/L=Mountain View/O=Android/OU=Android/CN=Android/emailAddress=android@android.com'
mkdir ~/.android-certs
for x in releasekey platform shared media; do \
./development/tools/make_key ~/.android-certs/$x "$subject"; \
done
C ---> Country Name (2 letter code)
ST ---> State or Province Name (full name)
L ---> Locality Name (eg, city)
O ---> Organization Name (eg, company)
OU ---> Organizational Unit Name (eg, section)
CN ---> Common Name (eg, your name or your server’s hostname)
emailAddress ---> Contact email address
另外在使用上面的make_key腳本生成key的過程中會提示輸入password，直接enter，不要密碼！否則build的過程因為多執行緒會build失敗。(後面會介紹強制使用密碼方法)
將生成的key複製到/build/target/product/security/ 底下，testkey可以不留。
僅需一個人產生即可，其他人複製同一份security key使用，避免使用不同簽章而在燒錄過程驗證不過。
C. 修改系統默認簽名key
若LOCAL_CERTIFICATE沒有設定的話，系統預設會直接使用testkey為APK簽章。
修改預設使用的testkey為releasekey
android4.4/build/core/config.mk
修正前：
DEFAULT_SYSTEM_DEV_CERTIFICATE := build/target/product/security/testkey
修正後：
DEFAULT_SYSTEM_DEV_CERTIFICATE := build/target/product/security/releasekey
/build/core/makefile
修正前：
ifeq ($(DEFAULT_SYSTEM_DEV_CERTIFICATE),build/target/product/security/testkey)
BUILD_VERSION_TAGS += test-keys
修正後：
ifeq ($(DEFAULT_SYSTEM_DEV_CERTIFICATE),build/target/product/security/releasekey)
BUILD_VERSION_TAGS += release-keys
===================================================================
如果你在產生key的過程有輸入password
build/tools/signapk/SignApk.java 在這隻檔案
private static String readPassword(File keyFile) {
Console console;
char[] pwd;
if((console = System.console()) != null &&
(pwd = console.readPassword("[%s]", "Enter password for " + keyFile)) != null){
return String.valueOf(pwd);
} else {
//return null;
+ return String.valueOf(password);<<加入這段 強制回傳你設置的密碼
}
}
這樣就可以解決build失敗的狀況
-----------------------------------------------------------------------------------------------------------------
build/core/config.mk
ifdef PRODUCT_DEFAULT_DEV_CERTIFICATE
DEFAULT_SYSTEM_DEV_CERTIFICATE := $(PRODUCT_DEFAULT_DEV_CERTIFICATE)
else
DEFAULT_SYSTEM_DEV_CERTIFICATE := build/target/product/security/testkey
endif
-----------------------------------------------------------------------------------------------------------------
in your project.mk
PRODUCT_DEFAULT_DEV_CERTIFICATE := \
device/xxx/testkey
===================================================================
How do I change the KEY path and the RSA for DM-verity?
===================================================================
development/tools/make_key verity '/C=US/ST=California/L=Mountain View/O=Android/OU=Android/CN=Android/emailAddress=android@android.com'
out/host/linux-x86/bin/generate_verity_key -convert verity.x509.pem verity_key
mv verity_key.pub verity_key
-----------------------------------------------------------------------------------------------------------------
copy build/target/product/verity.mk to project_path/
ifdef PRODUCT_VERITY_SIGNING_KEY
PRODUCT_VERITY_SIGNING_KEY := $(PRODUCT_VERITY_SIGNING_KEY)
else
DEFAULT_SYSTEM_DEV_CERTIFICATE := build/target/product/security/verity
endif
-----------------------------------------------------------------------------------------------------------------
in your project.mk
PRODUCT_VERITY_SIGNING_KEY := \
device/xxx/verity
DISTTOOLS += \
$(HOST_OUT_EXECUTABLES)/generate_verity_key
# setup dm-verity configs.
ifneq ($(BUILD_TARGET_DEVICE),sd)
PRODUCT_SYSTEM_VERITY_PARTITION := /dev/block/mmcblkxxx
$(call inherit-product, project_path/verity.mk)
else
PRODUCT_SYSTEM_VERITY_PARTITION := /dev/block/mmcblkxxx
$(call inherit-product, project_path/verity.mk)
endif
-----------------------------------------------------------------------------------------------------------------
key都建立完成後 應該要有
testkey.pk8 testkey.pem
media.pk8 media.pem
platform.pk8 platform.pem
shared.pk8 shared.pem
verity.pk8 verity.pem.
verity_key
共九個檔案
A. 簽名類型
android的標準簽名key有：
testkey, media, platform, shared
以上的四種，可以在源碼的/build/target/product/security/裡面看到對應的金鑰，其中shared.pk8代表私密金鑰，shared.x509.pem公開金鑰，一定是"成對"出現的。
其中testkey是作為android編譯的時候默認的簽名key，如果系統中的apk的android.mk中沒有設置LOCAL_CERTIFICATE的值，就默認使用testkey。
而如果設置成：
LOCAL_CERTIFICATE := platform
就代表使用platform來簽名，這樣的話這個apk就擁有了和system相同的簽名，因為系統級別的簽名也是使用的platform來簽名，此時使用android:sharedUserId="android.uid.system"才有用！
最後我們需要將testkey置換成releasekey。
B. 製作Release key
subject='/C=US/ST=California/L=Mountain View/O=Android/OU=Android/CN=Android/emailAddress=android@android.com'
mkdir ~/.android-certs
for x in releasekey platform shared media; do \
./development/tools/make_key ~/.android-certs/$x "$subject"; \
done
C ---> Country Name (2 letter code)
ST ---> State or Province Name (full name)
L ---> Locality Name (eg, city)
O ---> Organization Name (eg, company)
OU ---> Organizational Unit Name (eg, section)
CN ---> Common Name (eg, your name or your server’s hostname)
emailAddress ---> Contact email address
另外在使用上面的make_key腳本生成key的過程中會提示輸入password，直接enter，不要密碼！否則build的過程因為多執行緒會build失敗。(後面會介紹強制使用密碼方法)
將生成的key複製到/build/target/product/security/ 底下，testkey可以不留。
僅需一個人產生即可，其他人複製同一份security key使用，避免使用不同簽章而在燒錄過程驗證不過。
C. 修改系統默認簽名key
若LOCAL_CERTIFICATE沒有設定的話，系統預設會直接使用testkey為APK簽章。
修改預設使用的testkey為releasekey
android4.4/build/core/config.mk
修正前：
DEFAULT_SYSTEM_DEV_CERTIFICATE := build/target/product/security/testkey
修正後：
DEFAULT_SYSTEM_DEV_CERTIFICATE := build/target/product/security/releasekey
/build/core/makefile
修正前：
ifeq ($(DEFAULT_SYSTEM_DEV_CERTIFICATE),build/target/product/security/testkey)
BUILD_VERSION_TAGS += test-keys
修正後：
ifeq ($(DEFAULT_SYSTEM_DEV_CERTIFICATE),build/target/product/security/releasekey)
BUILD_VERSION_TAGS += release-keys
===================================================================
如果你在產生key的過程有輸入password
build/tools/signapk/SignApk.java 在這隻檔案
private static String readPassword(File keyFile) {
Console console;
char[] pwd;
if((console = System.console()) != null &&
(pwd = console.readPassword("[%s]", "Enter password for " + keyFile)) != null){
return String.valueOf(pwd);
} else {
//return null;
+ return String.valueOf(password);<<加入這段 強制回傳你設置的密碼
}
}
這樣就可以解決build失敗的狀況
-----------------------------------------------------------------------------------------------------------------
build/core/config.mk
ifdef PRODUCT_DEFAULT_DEV_CERTIFICATE
DEFAULT_SYSTEM_DEV_CERTIFICATE := $(PRODUCT_DEFAULT_DEV_CERTIFICATE)
else
DEFAULT_SYSTEM_DEV_CERTIFICATE := build/target/product/security/testkey
endif
-----------------------------------------------------------------------------------------------------------------
in your project.mk
PRODUCT_DEFAULT_DEV_CERTIFICATE := \
device/xxx/testkey
===================================================================
How do I change the KEY path and the RSA for DM-verity?
===================================================================
development/tools/make_key verity '/C=US/ST=California/L=Mountain View/O=Android/OU=Android/CN=Android/emailAddress=android@android.com'
out/host/linux-x86/bin/generate_verity_key -convert verity.x509.pem verity_key
mv verity_key.pub verity_key
-----------------------------------------------------------------------------------------------------------------
copy build/target/product/verity.mk to project_path/
ifdef PRODUCT_VERITY_SIGNING_KEY
PRODUCT_VERITY_SIGNING_KEY := $(PRODUCT_VERITY_SIGNING_KEY)
else
DEFAULT_SYSTEM_DEV_CERTIFICATE := build/target/product/security/verity
endif
-----------------------------------------------------------------------------------------------------------------
in your project.mk
PRODUCT_VERITY_SIGNING_KEY := \
device/xxx/verity
DISTTOOLS += \
$(HOST_OUT_EXECUTABLES)/generate_verity_key
# setup dm-verity configs.
ifneq ($(BUILD_TARGET_DEVICE),sd)
PRODUCT_SYSTEM_VERITY_PARTITION := /dev/block/mmcblkxxx
$(call inherit-product, project_path/verity.mk)
else
PRODUCT_SYSTEM_VERITY_PARTITION := /dev/block/mmcblkxxx
$(call inherit-product, project_path/verity.mk)
endif
-----------------------------------------------------------------------------------------------------------------
key都建立完成後 應該要有
testkey.pk8 testkey.pem
media.pk8 media.pem
platform.pk8 platform.pem
shared.pk8 shared.pem
verity.pk8 verity.pem.
verity_key
共九個檔案
[Android] Debug
看cpu頻率相關資訊:
/sys/devices/system/cpu/
in android 6:
logcat -b kernel
Screencasting/Mirroring an Android Device Screen onto your Desktop under Ubuntu/Linux Mint
http://www.upubuntu.com/2015/09/screencastingmirroring-android-device.html
/sys/devices/system/cpu/
in android 6:
logcat -b kernel
Screencasting/Mirroring an Android Device Screen onto your Desktop under Ubuntu/Linux Mint
http://www.upubuntu.com/2015/09/screencastingmirroring-android-device.html
[Android] Android
===========================================================
init
system/core/init
readme.txt
keywords.h -init command
===========================================================
Android 6:
查詢相對應的Key_code
frameworks/base/data/keyboards/Generic.kl
處理Key_Event
frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
158 /* KEY_BACK */
172 /* KEY_HOMEPAGE */
580 /* APP_SWITCH */
/frameworks/base/core/res/res/values/config.xml
===========================================================
Disable the software navigation bar
<bool name="config_showNavigationBar">false</bool>
Check the device init.rc don't "setprop sys.device.type tablet"
If deivetpye is tablet, the mHasNavigationBar will be true.
// Allow a system property to override this. Used by the emulator.
// See also hasNavigationBar().
String navBarOverride = SystemProperties.get("qemu.hw.mainkeys");
if ("1".equals(navBarOverride)) {
mHasNavigationBar = false;
} else if ("0".equals(navBarOverride)) {
mHasNavigationBar = true;
}
//if device type is tablet force enable NavigationBar and forbid NavigationBar move
String deviceType = SystemProperties.get("sys.device.type");
if (! "".equals(deviceType) && deviceType.equals("tablet")) {
mNavigationBarCanMove = false;
mHasNavigationBar = true;
}
===========================================================
Screen flip
frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
if (mForceDefaultOrientation) {
return Surface.ROTATION_0;
}
+ return Surface.ROTATION_180;
synchronized (mLock) {
===========================================================
init
system/core/init
readme.txt
keywords.h -init command
===========================================================
Android 6:
查詢相對應的Key_code
frameworks/base/data/keyboards/Generic.kl
處理Key_Event
frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
158 /* KEY_BACK */
172 /* KEY_HOMEPAGE */
580 /* APP_SWITCH */
/frameworks/base/core/res/res/values/config.xml
===========================================================
Disable the software navigation bar
<bool name="config_showNavigationBar">false</bool>
Check the device init.rc don't "setprop sys.device.type tablet"
If deivetpye is tablet, the mHasNavigationBar will be true.
// Allow a system property to override this. Used by the emulator.
// See also hasNavigationBar().
String navBarOverride = SystemProperties.get("qemu.hw.mainkeys");
if ("1".equals(navBarOverride)) {
mHasNavigationBar = false;
} else if ("0".equals(navBarOverride)) {
mHasNavigationBar = true;
}
//if device type is tablet force enable NavigationBar and forbid NavigationBar move
String deviceType = SystemProperties.get("sys.device.type");
if (! "".equals(deviceType) && deviceType.equals("tablet")) {
mNavigationBarCanMove = false;
mHasNavigationBar = true;
}
===========================================================
Screen flip
frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
if (mForceDefaultOrientation) {
return Surface.ROTATION_0;
}
+ return Surface.ROTATION_180;
synchronized (mLock) {
===========================================================
[Android] screencap
screencap 可以從 command line 擷取螢幕畫面。screencap [-p] [<FILENAME>]
提供 FILENAME 時表示要把畫面直接寫到手機的記憶卡，否則會輸出到 STDOUT。
加
加
-p 或 FILENAME 以 .png 結尾時，畫面會輸出成 PNG 格式（預設採用 frame buffer 的原始格式）。例如：$ adb shell screencap -p /sdcard/screen.png
$ adb pull /sdcard/screen.png
$ adb shell rm /sdcard/screen.png
利用
screencap 沒有給定 FILENAME 時會將畫面輸出到 STDOUT 的特性，可以將上面多個步驟合併成一行指令：$ adb shell screencap -p | sed 's/\r$//' > screen.png
後面用
sed 多做一層加工，是因為 adb shell 會將 \n 轉成 \r\n 的關係，必須將 \r\n (0x0d0a) 反轉回 \r (0x0a) 才行。實務上，再用 alias 包裝起來會比較方便：$ alias and-screencap="adb shell screencap -p | sed 's/\r$//'"
$ and-screencap > screen.png # 
之後就可以用
and-screencap > <FILENAME> 直接將畫面存成電腦上的檔案 FILENAME，不需要在手機記憶卡產生暫存檔。完整的用法
$ screencap -h
usage: screencap [-hp] [FILENAME]
-h: this message
-p: save the file as a png.
If FILENAME ends with .png it will be saved as a png.
If FILENAME is not given, the results will be printed to stdout.
[Android] [Recovery]
===========================================================
Recovery klog
===========================================================
If you find : denied { write } for pid=183 comm="recovery" name="kmsg"
Moditfy : myandroid/external/sepolicy/recovery.te
Add : allow recovery kmsg_device:chr_file rw_file_perms;
----------------------------------------------------------------------------------------------------
recovery.cpp
#define RECOVERY_KLOG_LEVEL KLOG_INFO_LEVEL
in main to add :
klog_init();
klog_set_level(RECOVERY_KLOG_LEVEL
common.h
#include <cutils/klog.h>
#define LOGE(...) KLOG_INFO("<recovery>E", __VA_ARGS__); fprintf(stdout, "E:" __VA_ARGS__)
#define LOGW(...) KLOG_WARNING("<recovery>W", __VA_ARGS__); fprintf(stdout, "W:" __VA_ARGS__)
#define LOGI(...) KLOG_INFO("<recovery>I", __VA_ARGS__); fprintf(stdout, "I:" __VA_ARGS__)
#define LOGV(...) KLOG_INFO("<recovery>V", __VA_ARGS__); fprintf(stdout, "V:" __VA_ARGS__)
#define LOGD(...) KLOG_INFO("<recovery>D", __VA_ARGS__); fprintf(stdout, "D:" __VA_ARGS__)
screen_ui.cpp
in ScreenRecoveryUI::Print to add :
KLOG_INFO("<recovery>UI", "%s", buf);
===========================================================
Make /tmp/recovery.log & /tmp/last_install accessible
===========================================================
If you find : denied { open } for pid=194 comm="adbd" path="/tmp/recovery.log" dev="tmpfs"
adb pull /tmp/recovery.log
message : failed to copy '/tmp/recovery.log' to './recovery.log': Permission denied
adb pull /tmp/last_install
message : failed to copy '/tmp/last_install' to './last_install': Permission denied
Moditfy : external/sepolicy/adbd.te
Add : allow adbd tmpfs:file { open };
----------------------------------------------------------------------------------------------------
recovery.cpp
in main to add :
+chmod(TEMPORARY_LOG_FILE, 0644);
install.cpp
in main :
if (install_log) {
fputs(path, install_log);
fputc('\n', install_log);
+chmod(install_file, 0644);
}
===========================================================
Support recovery shell console
===========================================================
mksh/reboot/toubox Android.mk
LOCAL_STATIC_LIBRARIES += libc
LOCAL_FORCE_STATIC_EXECUTABLE := true
----------------------------------------------------------------------------------------------------
build/core/Makefile
recovery_ash_binary := $(call intermediates-dir-for,EXECUTABLES,ash)/ash
recovery_reboot_binary := $(call intermediates-dir-for,EXECUTABLES,rreboot)/rreboot
recovery_toybox_binary := $(call intermediates-dir-for,EXECUTABLES,rtoybox)/rtoybox
recovery_toybox_tools := \
youtools(ex. cat) \
recovery_toybox_symlinks := $(addprefix $(TARGET_RECOVERY_ROOT_OUT)/sbin/,$(recovery_toybox_tools))
define build-recoveryimage-target
@echo ----- Making recovery image ------
$(hide) rm -rf $(TARGET_RECOVERY_ROOT_OUT)/res/*
$(hide) cp -f $(recovery_ash_binary) $(TARGET_RECOVERY_ROOT_OUT)/sbin/
$(hide) cp -f $(recovery_reboot_binary) $(TARGET_RECOVERY_ROOT_OUT)/sbin/reboot
$(hide) cp -f $(recovery_toybox_binary) $(TARGET_RECOVERY_ROOT_OUT)/sbin/
$(hide) $(foreach t,$(recovery_toybox_symlinks),ln -sf rtoybox $(t);)
$(INSTALLED_RECOVERYIMAGE_TARGET): $(MKBOOTFS) $(MKBOOTIMG) $(MINIGZIP) \
$(INTERNAL_RECOVERYIMAGE_FILES) \
$(recovery_ash_binary) $(recovery_reboot_binary) $(recovery_toybox_binary) \
----------------------------------------------------------------------------------------------------
recovery/etc/init.rc
service console /sbin/ash
class core
console
user root
group root
seclabel u:r:recovery:s0
on property:ro.debuggable=1
start console
on property:service.adb.root=1
start console
===========================================================
===========================================================
----------------------------------------------------------------------------------------------------
===========================================================
===========================================================
----------------------------------------------------------------------------------------------------
Recovery klog
===========================================================
If you find : denied { write } for pid=183 comm="recovery" name="kmsg"
Moditfy : myandroid/external/sepolicy/recovery.te
Add : allow recovery kmsg_device:chr_file rw_file_perms;
----------------------------------------------------------------------------------------------------
recovery.cpp
#define RECOVERY_KLOG_LEVEL KLOG_INFO_LEVEL
in main to add :
klog_init();
klog_set_level(RECOVERY_KLOG_LEVEL
common.h
#include <cutils/klog.h>
#define LOGE(...) KLOG_INFO("<recovery>E", __VA_ARGS__); fprintf(stdout, "E:" __VA_ARGS__)
#define LOGW(...) KLOG_WARNING("<recovery>W", __VA_ARGS__); fprintf(stdout, "W:" __VA_ARGS__)
#define LOGI(...) KLOG_INFO("<recovery>I", __VA_ARGS__); fprintf(stdout, "I:" __VA_ARGS__)
#define LOGV(...) KLOG_INFO("<recovery>V", __VA_ARGS__); fprintf(stdout, "V:" __VA_ARGS__)
#define LOGD(...) KLOG_INFO("<recovery>D", __VA_ARGS__); fprintf(stdout, "D:" __VA_ARGS__)
screen_ui.cpp
in ScreenRecoveryUI::Print to add :
KLOG_INFO("<recovery>UI", "%s", buf);
===========================================================
Make /tmp/recovery.log & /tmp/last_install accessible
===========================================================
If you find : denied { open } for pid=194 comm="adbd" path="/tmp/recovery.log" dev="tmpfs"
adb pull /tmp/recovery.log
message : failed to copy '/tmp/recovery.log' to './recovery.log': Permission denied
adb pull /tmp/last_install
message : failed to copy '/tmp/last_install' to './last_install': Permission denied
Moditfy : external/sepolicy/adbd.te
Add : allow adbd tmpfs:file { open };
----------------------------------------------------------------------------------------------------
recovery.cpp
in main to add :
+chmod(TEMPORARY_LOG_FILE, 0644);
install.cpp
in main :
if (install_log) {
fputs(path, install_log);
fputc('\n', install_log);
+chmod(install_file, 0644);
}
===========================================================
Support recovery shell console
===========================================================
mksh/reboot/toubox Android.mk
LOCAL_STATIC_LIBRARIES += libc
LOCAL_FORCE_STATIC_EXECUTABLE := true
----------------------------------------------------------------------------------------------------
build/core/Makefile
recovery_ash_binary := $(call intermediates-dir-for,EXECUTABLES,ash)/ash
recovery_reboot_binary := $(call intermediates-dir-for,EXECUTABLES,rreboot)/rreboot
recovery_toybox_binary := $(call intermediates-dir-for,EXECUTABLES,rtoybox)/rtoybox
recovery_toybox_tools := \
youtools(ex. cat) \
recovery_toybox_symlinks := $(addprefix $(TARGET_RECOVERY_ROOT_OUT)/sbin/,$(recovery_toybox_tools))
define build-recoveryimage-target
@echo ----- Making recovery image ------
$(hide) rm -rf $(TARGET_RECOVERY_ROOT_OUT)/res/*
$(hide) cp -f $(recovery_ash_binary) $(TARGET_RECOVERY_ROOT_OUT)/sbin/
$(hide) cp -f $(recovery_reboot_binary) $(TARGET_RECOVERY_ROOT_OUT)/sbin/reboot
$(hide) cp -f $(recovery_toybox_binary) $(TARGET_RECOVERY_ROOT_OUT)/sbin/
$(hide) $(foreach t,$(recovery_toybox_symlinks),ln -sf rtoybox $(t);)
$(INSTALLED_RECOVERYIMAGE_TARGET): $(MKBOOTFS) $(MKBOOTIMG) $(MINIGZIP) \
$(INTERNAL_RECOVERYIMAGE_FILES) \
$(recovery_ash_binary) $(recovery_reboot_binary) $(recovery_toybox_binary) \
----------------------------------------------------------------------------------------------------
recovery/etc/init.rc
service console /sbin/ash
class core
console
user root
group root
seclabel u:r:recovery:s0
on property:ro.debuggable=1
start console
on property:service.adb.root=1
start console
===========================================================
===========================================================
----------------------------------------------------------------------------------------------------
===========================================================
===========================================================
----------------------------------------------------------------------------------------------------
[Android] sepolicy
/external/sepolicy/file_contexts
add :
/system/bin/abc u:object_r:abc_exec:s0
you can add
/external/sepolicy/abc.te
in abc.te
type abc, domain;
type abc_exec, exec_type, file_type;
init_daemon_domain(abc);
add :
/system/bin/abc u:object_r:abc_exec:s0
you can add
/external/sepolicy/abc.te
in abc.te
type abc, domain;
type abc_exec, exec_type, file_type;
init_daemon_domain(abc);
[Android] Android編譯系統參考手冊
build/core/binary.mk
定義了將asm，c，cpp，yacc，lex源代碼編譯為目標文件的基本規則
模塊想生成某類型目標時不會直接包含該makefile，但如果生成二進製程序，會間接包含該makefile
dynamic_binary.mk， executable.mk，host_executable.mk，host_shared_library.mk
host_static_library.mk，prebuilt.mk，raw_executable.mk，shared_library.mk，static_library.mk
等makefile都會包含binary.mk
所有的目標文件將添加到$(all_objects)變量裡
模塊想生成某類型目標時不會直接包含該makefile，但如果生成二進製程序，會間接包含該makefile
dynamic_binary.mk， executable.mk，host_executable.mk，host_shared_library.mk
host_static_library.mk，prebuilt.mk，raw_executable.mk，shared_library.mk，static_library.mk
等makefile都會包含binary.mk
所有的目標文件將添加到$(all_objects)變量裡
Function: insert-liblog
使得包含了libcutils或者libutils的模塊，也包含liblog，並使得liblog排在前面
2017年5月1日 星期一
[Ubuntu] SmartSVN
add java path:
SMARTSVN_JAVA_HOME="/usr/lib/jvm/java-7-openjdk-amd64/jre"
check the java path:
if [ "$SMARTSVN_JAVA_HOME" = "" ] && [ -f "/usr/lib/jvm/java-7-openjdk-i386/jre/bin/java" ] ; then
SMARTSVN_JAVA_HOME="/usr/lib/jvm/java-7-openjdk-i386/jre/bin/java"
fi
modifty the max memory:
SmartSVN version 8:
if [ "$SMARTSVN_MAX_HEAP_SIZE" = "" ] ; then
SMARTSVN_MAX_HEAP_SIZE=2048m
fi
SmartSVN version 9:
_GC_OPTS="-XX:+UseG1GC -XX:MaxGCPauseMillis=100 -XX:InitiatingHeapOccupancyPercent=25 -Xmx2048m"
http://tecadmin.net/install-subversion-1-9-on-ubuntu/
$ sudo sh -c 'echo "deb http://opensource.wandisco.com/ubuntu `lsb_release -cs` svn19" >> /etc/apt/sources.list.d/subversion19.list'
$ sudo wget -q http://opensource.wandisco.com/wandisco-debian.gpg -O- | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get upgrade subversion
svn: File has inconsistent newlines
Project->Setting->Working copy->EOL-style
Default EOL-style- > As is(no conversion)
[Ubuntu] Setting
//right click open terminal in folder
apt-get install nautilus-open-terminal
nautilus -q…
//change the folder name chinese to english
LANG=C xdg-user-dirs-gtk-update
//disable overlay scroll bars to normal
gsettings set com.canonical.desktop.interface scrollbar-mode normal
//java install
openjdk:
sudo add-apt-repository ppa:openjdk-r/ppa
sudo apt-get update
sudo apt-get install openjdk-7-jdk
oracle:
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java6-installer
//If have error
sudo dpkg -P oracle-java7-installer
sudo apt-get -f install
//Install Cinnamon 2.4 in Ubuntu "14.04"
sudo add-apt-repository ppa:tsvetko.tsvetkov/cinnamon
sudo apt-get update
sudo apt-get install cinnamon
//show trash icon on desktop
gsettings set org.gnome.nautilus.desktop trash-icon-visible true
//USB permission for adb and fastboot
/etc/udev/rules.d/51-android.rules
//I.MX
sudo apt-get install uuid uuid-dev zlib1g-dev liblz-dev liblzo2-2 liblzo2-dev lzop git-core curl u-boot-tools mtd-utils android-tools-fsutils m4 libxml2-utils bison xsltproc flex gperf gcc g++ build-essential gcc-multilib lzma android-tools-adb qt4-qmake libqt4-dev lib32stdc++6 lib32z1 lib32z1-dev cmake texinfo chrpath libsdl1.2-dev
//ccache
sudo apt-get install -y ccache &&\
echo 'export PATH="/usr/lib/ccache:$PATH"' | tee -a ~/.bashrc &&\
source ~/.bashrc && echo $PATH
home/.profile
add :
export USE_CCACHE=1
export CCACHE_DIR=/<path_of_your_choice>/.ccache
ccache -F 0 set maximum number of files in cache to N (use 0 for no limit)
ccache -M 0 set maximum size of cache to SIZE (use 0 for no limit; available suffixes: G, M and K; default suffix: G)
ccache -C -z Empty the cache and reset the stats
ccache -s show statistics summary
//Atom
config.cson
packages
//minicom
sudo apt-get install minicom
.bashrc .thunderbird
//Atom
sudo apt-get install cscope ctags
package:
atom-beautify,atom-cscope,atom-ctags,color-picker,editorconfig
config.cson
packages
//WD=-1, Errno=No space left on device (ENOSPC)
cat /proc/sys/fs/inotify/max_user_watches (Which is typically 8192 by default.)
To increase your limit, type this:
sudo sysctl fs.inotify.max_user_watches=16384
To permanently set this limit, type this:
echo 16384 | sudo tee -a /proc/sys/fs/inotify/max_user_watches
//software
classicmenu,Shutter,Smartsvn,Smartgit,BeyondCompare,VirtualBox,Atom
//ubuntu16.04
新酷音 : sudo apt-get install fcitx-chewing
sudo apt-get install ibus-zhuyin #注音輸入法
//Upgrade to LibreOffice
sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
//revert the changes
sudo apt-get install ppa-purge
sudo ppa-purge ppa:libreoffice/ppa
//Thunderbird
lightning
lookout
//51-Android.rules
/etc/udev/rules.d
//USB permission for adb and fastboot
/etc/udev/rules.d/51-android.rules
//I.MX
sudo apt-get install uuid uuid-dev zlib1g-dev liblz-dev liblzo2-2 liblzo2-dev lzop git-core curl u-boot-tools mtd-utils android-tools-fsutils m4 libxml2-utils bison xsltproc flex gperf gcc g++ build-essential gcc-multilib lzma android-tools-adb qt4-qmake libqt4-dev lib32stdc++6 lib32z1 lib32z1-dev cmake texinfo chrpath libsdl1.2-dev
//ccache
sudo apt-get install -y ccache &&\
echo 'export PATH="/usr/lib/ccache:$PATH"' | tee -a ~/.bashrc &&\
source ~/.bashrc && echo $PATH
home/.profile
add :
export USE_CCACHE=1
export CCACHE_DIR=/<path_of_your_choice>/.ccache
ccache -F 0 set maximum number of files in cache to N (use 0 for no limit)
ccache -M 0 set maximum size of cache to SIZE (use 0 for no limit; available suffixes: G, M and K; default suffix: G)
ccache -C -z Empty the cache and reset the stats
ccache -s show statistics summary
//Atom
config.cson
packages
//minicom
sudo apt-get install minicom
sudo adduser USERNAME dialout
//Backup.bashrc .thunderbird
//Atom
sudo apt-get install cscope ctags
package:
atom-beautify,atom-cscope,atom-ctags,color-picker,editorconfig
packages
//WD=-1, Errno=No space left on device (ENOSPC)
cat /proc/sys/fs/inotify/max_user_watches (Which is typically 8192 by default.)
To increase your limit, type this:
sudo sysctl fs.inotify.max_user_watches=16384
To permanently set this limit, type this:
echo 16384 | sudo tee -a /proc/sys/fs/inotify/max_user_watches
//software
classicmenu,Shutter,Smartsvn,Smartgit,BeyondCompare,VirtualBox,Atom
//ubuntu16.04
新酷音 : sudo apt-get install fcitx-chewing
sudo apt-get install ibus-zhuyin #注音輸入法
//Upgrade to LibreOffice
sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
//revert the changes
sudo apt-get install ppa-purge
sudo ppa-purge ppa:libreoffice/ppa
//Thunderbird
lightning
lookout
//51-Android.rules
/etc/udev/rules.d
[Ubuntu] Minicom & Oracle VM Permission denied
Cannot open /dev/ttyUSB0: Permission denied
Solution:
$ sudo adduser youracct dialout
Verification:
$ groups
$ sudo adduser youracct dialout
Verification:
$ groups
youracct dialout
Oracle VM USB can't work or not find:
Solution:
$ sudo adduser youracct vboxusers
Verification:
$ groups
youracct adm dialout cdrom sudo dip plugdev lpadmin sambashare "vboxusers"
Oracle VM USB can't work or not find:
Solution:
$ sudo adduser youracct vboxusers
Verification:
$ groups
youracct adm dialout cdrom sudo dip plugdev lpadmin sambashare "vboxusers"
[Ubuntu] Ubuntu 16.04 LTS - Install Android Tools
1. Install Android tools
# sudo apt-get install android-tools-adb android-tools-fastboot
2. Update to latest ADB and fastboot
# adb version
Android Debug Bridge version 1.0.32
# wget https://dl.google.com/android/repository/platform-tools-latest-linux.zip
# sudo unzip -d /usr/local/sbin platform-tools-latest-linux.zip
# sudo wget -O /usr/local/sbin/adb https://raw.githubusercontent.com/NicolasBernaerts/ubuntu- scripts/master/android/adb
# sudo wget -O /usr/local/sbin/fastboot https://raw.githubusercontent.com/NicolasBernaerts/ubuntu-scripts/master/android/fastboot
# sudo chmod +x /usr/local/sbin/platform-tools/adb /usr/local/sbin/adb
# sudo chmod +x /usr/local/sbin/platform-tools/fastboot /usr/local/sbin/fastboot
# adb version
Android Debug Bridge version 1.0.39
Revision 3db08f2c6889-android
Installed as /usr/local/sbin/platform-tools/adb
refer : http://bernaerts.dyndns.org/linux/74-ubuntu/354-ubuntu-xenial-android-adb-fastboot-qtadb
# sudo apt-get install android-tools-adb android-tools-fastboot
2. Update to latest ADB and fastboot
# adb version
Android Debug Bridge version 1.0.32
# wget https://dl.google.com/android/repository/platform-tools-latest-linux.zip
# sudo unzip -d /usr/local/sbin platform-tools-latest-linux.zip
# sudo wget -O /usr/local/sbin/adb https://raw.githubusercontent.com/NicolasBernaerts/ubuntu- scripts/master/android/adb
# sudo wget -O /usr/local/sbin/fastboot https://raw.githubusercontent.com/NicolasBernaerts/ubuntu-scripts/master/android/fastboot
# sudo chmod +x /usr/local/sbin/platform-tools/adb /usr/local/sbin/adb
# sudo chmod +x /usr/local/sbin/platform-tools/fastboot /usr/local/sbin/fastboot
# adb version
Android Debug Bridge version 1.0.39
Revision 3db08f2c6889-android
Installed as /usr/local/sbin/platform-tools/adb
refer : http://bernaerts.dyndns.org/linux/74-ubuntu/354-ubuntu-xenial-android-adb-fastboot-qtadb
2017年4月1日 星期六
[U-boot] bootenv set
//For android
In include/android_image.h - #define ANDR_BOOT_ARGS_SIZE 512
In common/image-android.c- will to get the append_bootargs
//Kernel command line
In arch/arm/lib/bootm.c- will to get the commandline
In include/android_image.h - #define ANDR_BOOT_ARGS_SIZE 512
In common/image-android.c- will to get the append_bootargs
//Kernel command line
In arch/arm/lib/bootm.c- will to get the commandline
[U-boot] [I.MX6] bootenv emmc set error
If you bootarg set error ,can clear by mfg_tool
but you need know the emmc block address
MFG_tools/Profiles/Linux/OS Firmware/ucl2.xml
<CMD state="Updater" type="push" body="$ dd if=/dev/zero of=/dev/mmcblk%mmc% bs=1k seek=384 conv=fsync count=129">clear u-boot arg</CMD>
The persistent storage, where the block comes from, is platform-specific. Some common storage options (and source file handling that storage option):
seek 是略過 of (output file) 所指定的檔案 的 bs * count 大小 然後才開始寫入
bs 大小 default 是 512 bytes, 切記 count 一要給!
dd 常用的參數如下：
if=FILE：指定輸入檔案名稱(input file)為 FILE
of=FILE：指定輸出檔案名稱(output file)為 FILE
ibs=BYTES：指定輸入區塊大小(input block size),一次讀取 BYTES 位元組的資料,預設為 512 位元組
obs=BYTES：指定輸出區塊大小(output block size),一次寫入 BYTES 位元組的資料,預設為 512 位元組
bs=BYTES：指定 block size,一次讀取與寫入 BYTES 位元組的資料，此選項會覆蓋 ibs 與 obs 的設定
cbs=BYTES：一次轉換 BYTES 位元組的資料
count=N：只處理 N 個輸入區塊,每個區塊的大小為 ibs
seek=N：在輸出時跳過輸出檔案的前 N 個區塊,每個區塊的大小為 obs
skip=N：在輸入時跳過輸入檔案的前 N 個區塊,每個區塊的大小為 ibs
conv=CONVS：指定資料的轉換選項,如果一次要指定多種轉換,則以逗點分隔
but you need know the emmc block address
MFG_tools/Profiles/Linux/OS Firmware/ucl2.xml
<CMD state="Updater" type="push" body="$ dd if=/dev/zero of=/dev/mmcblk%mmc% bs=1k seek=384 conv=fsync count=129">clear u-boot arg</CMD>
The persistent storage, where the block comes from, is platform-specific. Some common storage options (and source file handling that storage option):
NOR flash common/env_flash.c
SPI flash common/env_sf.c
MMC common/env_mmc.c#define CONFIG_SYS_ENV_SECT_SIZE (128 << 10) /* 128 KiB */
#define CONFIG_ENV_OFFSET SMNAND_ENV_OFFSET
#define CONFIG_ENV_ADDR SMNAND_ENV_OFFSETseek 是略過 of (output file) 所指定的檔案 的 bs * count 大小 然後才開始寫入
bs 大小 default 是 512 bytes, 切記 count 一要給!
dd 常用的參數如下：
if=FILE：指定輸入檔案名稱(input file)為 FILE
of=FILE：指定輸出檔案名稱(output file)為 FILE
ibs=BYTES：指定輸入區塊大小(input block size),一次讀取 BYTES 位元組的資料,預設為 512 位元組
obs=BYTES：指定輸出區塊大小(output block size),一次寫入 BYTES 位元組的資料,預設為 512 位元組
bs=BYTES：指定 block size,一次讀取與寫入 BYTES 位元組的資料，此選項會覆蓋 ibs 與 obs 的設定
cbs=BYTES：一次轉換 BYTES 位元組的資料
count=N：只處理 N 個輸入區塊,每個區塊的大小為 ibs
seek=N：在輸出時跳過輸出檔案的前 N 個區塊,每個區塊的大小為 obs
skip=N：在輸入時跳過輸入檔案的前 N 個區塊,每個區塊的大小為 ibs
conv=CONVS：指定資料的轉換選項,如果一次要指定多種轉換,則以逗點分隔
[u-boot] logo background color setting
此logo背景色在圖中所使用比例最高
再由 bmp_logo_bitmap 判定0x24為背景色
在對應至 bmp_logo_palette 可得知0x24 is 0x0FFF
經過下列運算,可得知背景色為 0xf0
在此處如果 *CONFIG_SYS_CONSOLE_FG_COL* & *CONFIG_SYS_CONSOLE_BG_COL*
皆有定義,則會使用所定義之 背景/前景 顏色填入
因此我在project.h加入下方的定義,來完成背景色的填充
再由 bmp_logo_bitmap 判定0x24為背景色
在對應至 bmp_logo_palette 可得知0x24 is 0x0FFF
out/uboot/include/bmp_logo_data.hunsigned short bmp_logo_palette[] = {0x0000, 0x0FFF, 0x0666, 0x0666, 0x0FFF, 0x0666, 0x0666, 0x0F00,0x0F00, 0x0FFF, 0x0FFF, 0x0F00, 0x0666, 0x0666, 0x0000, 0x0F00,0x0666, 0x0666, 0x0E11, 0x0F00, 0x0FFF, 0x0FFF, 0x0F00, 0x0FFF,...}unsigned char bmp_logo_bitmap[] = {0x24, 0x24, 0x24, 0x24, 0x24, 0x24, 0x24, 0x24,0x24, 0x24, 0x24, 0x24, 0x24, 0x24, 0x24, 0x24,0x24, 0x24, 0x24, 0x24, 0x24, 0x24, 0x24, 0x24,...}
經過下列運算,可得知背景色為 0xf0
uboot-imx/drivers/video/cfb_console.cfor (i = 0; i < VIDEO_LOGO_COLORS; i++) {logo_red[i] = (bmp_logo_palette[i] & 0x0f00) >> 4;logo_green[i] = (bmp_logo_palette[i] & 0x00f0);logo_blue[i] = (bmp_logo_palette[i] & 0x000f) << 4;}
在此處如果 *CONFIG_SYS_CONSOLE_FG_COL* & *CONFIG_SYS_CONSOLE_BG_COL*
皆有定義,則會使用所定義之 背景/前景 顏色填入
uboot-imx/include/video_fb.h#if defined(CONFIG_SYS_CONSOLE_FG_COL) && defined(CONFIG_SYS_CONSOLE_BG_COL)#define CONSOLE_BG_COL CONFIG_SYS_CONSOLE_BG_COL#define CONSOLE_FG_COL CONFIG_SYS_CONSOLE_FG_COL#else#define CONSOLE_BG_COL 0x00#define CONSOLE_FG_COL 0xa0#endif
因此我在project.h加入下方的定義,來完成背景色的填充
#define CONFIG_SYS_CONSOLE_FG_COL 0xa0 #define CONFIG_SYS_CONSOLE_BG_COL 0xf0
[bootargs environment]Enable hdmi and uart console
For IMX 6Q
add:
androidboot.selinux=disabled androidboot.dm_verity=disabled
modify:
video=mxcfb1:dev=hdmi,1920x1080M@60,bpp=32
add:
androidboot.selinux=disabled androidboot.dm_verity=disabled
modify:
video=mxcfb1:dev=hdmi,1920x1080M@60,bpp=32
[U-boot] logo
在有實現LCD顯示和LCD命令行終端的U-boot中，默認情況下在左上角都有顯示一個logo，如果是atmel的芯片，就會有atmel的logo，三星的則是denx的logo。如果想把它改成自己喜歡的或者公司的logo，則只要作簡單的修改便可以實現。
一，圖片的放置路徑
所有的開機logo都放在了/tools/logos之下，所以，把你需要顯示的logo圖片（bmp格式）也放置到該目錄下。根據你所設置的顯示幀緩存的大小，圖片大小有所限制。使用這種方法還有一個限制是：圖片只能是8bpp的bmp圖（參考uboot源碼）。Tekkman文章中所說的“所替換的logo必須和原來的大小、格式一模一樣，否則會出現u-boot使用過程中宕機重啟的後果”，我自己親測中並未遇到，當然，我也並沒有做足夠的測試，只是這並不需要和原圖的大小一模一樣。
二，修改Makefile文件
修改/tools目錄下的Makefile文件
三、圖片的轉換腳本
在製作圖片前，請您現確認您的Linux主機上安裝了Netpbm工具包。
使用方法： （腳本名） （ 待處理的JPG圖片名） （輸出文件名）
自定義u-boot的開機logo的方法
refer : http://blog.chinaunix.net/uid-9688646-id-1998453.html
一，圖片的放置路徑
所有的開機logo都放在了/tools/logos之下，所以，把你需要顯示的logo圖片（bmp格式）也放置到該目錄下。根據你所設置的顯示幀緩存的大小，圖片大小有所限制。使用這種方法還有一個限制是：圖片只能是8bpp的bmp圖（參考uboot源碼）。Tekkman文章中所說的“所替換的logo必須和原來的大小、格式一模一樣，否則會出現u-boot使用過程中宕機重啟的後果”，我自己親測中並未遇到，當然，我也並沒有做足夠的測試，只是這並不需要和原圖的大小一模一樣。
二，修改Makefile文件
修改/tools目錄下的Makefile文件
把denx.bmp 替換為你需要顯示的logo圖片的文件名，保存退出，重新編譯uboot。ifeq ($(LOGO_BMP),) LOGO_BMP= logos/denx.bmp endif
三、圖片的轉換腳本
在製作圖片前，請您現確認您的Linux主機上安裝了Netpbm工具包。
sudo apt-get install netpbm
jpegtopnm logo.jpg | ppmquant 31 | ppmtobmp -bpp 8 > logo.bmp
U-Boot中的Splash Screen
U-Boot配置
在U-Boot中使用Splash Screen，可以實現U-Boot啟動後，在LCD上顯示自定義圖片，起到友好的界面顯示作用。使用Splash Screen需要在配置文件中使能BMP圖片功能和SPLASH功能：
#define CONFIG_CMD_BMP
#define CONFIG_SPLASH_SCREEN
#define CONFIG_SPLASH_SCREEN
實例
並且要定義splashimage變量以及在splash變量所定義的地址存放bmp圖片。以2MB的SST30VF1601為例，工32個扇區，規劃如下：
項目
|
地址範圍
|
扇區
|
大小
|
說明
|
U-Boot
|
0x0000 0000 ~ 0x0010 0000
|
0~15
|
1M
| |
參數
|
0x0010 0000 ~ 0x0018 0000
|
16~23
|
512K
| |
splashimage
|
0x0018 0000 ~ 0x0020 0000
|
24~31
|
512K
|
操作
現在要實現splash screen，需要進行操作，先下載一個圖片到內存中，然後擦除FLASH的splashimage區域，接著將圖片寫入splashimage區域，最後設置並保存splashimage環境變量即可。
U-Boot> tftp a0008000 logo.bmp ；下載文件到內存
U-Boot> erase 1:23-31 ；擦除Flash的splashimage區域
U-Boot> cp.b a0008000 00180000 $filesize ；將logo寫到Flash的splashimage區域
U-Boot> setenv splashimage 00180000 ；設置splashimage環境變量
U-Boot> saveenv ；保存環境變量
u-boot啟動後，輸入bmp d $splashimage即可在LCD上顯示logo圖片。為了實現開機就顯示logo，可以修改common/lcd.c文件，在其中加入實現bmp d $splashimage的代碼即可。
自定義u-boot的開機logo的方法
ifeq ($(LOGO_BMP),) LOGO_BMP= logos/denx.bmp endif ifeq ($(VENDOR), atmel) LOGO_BMP= logos/atmel.bmp endif ifeq ($(VENDOR),ronetix) LOGO_BMP= logos/ronetix.bmp endif
refer : http://blog.chinaunix.net/uid-9688646-id-1998453.html
訂閱：
文章 (Atom)