[Solved] Errors: Android

Showing posts with label Android. Show all posts

Friday, July 13, 2012

Android wireless-tools

[Translated from http://anemospring.blogspot.com.es/2011/03/android-wireless-tools.html]

1. Download wireless_tools.30.pre9.tar.gz from

www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html

This version supports non-ASCII char in ESSID.

2. Unpack it into mydroid/external/wireless-tools directory.

3. Create Android.mk file with the following content:

LOCAL_PATH:= $(call my-dir)
################## build iwlib ###################
include $(CLEAR_VARS)
LOCAL_SRC_FILES := iwlib.c
LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC
LOCAL_MODULE:= libiw
LOCAL_STATIC_LIBRARIES := libcutils libc libm
include $(BUILD_STATIC_LIBRARY)
################## build iwconfig ###################
include $(CLEAR_VARS)
LOCAL_SRC_FILES := iwconfig.c
LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC
LOCAL_MODULE:= iwconfig
LOCAL_STATIC_LIBRARIES := libcutils libc libm libiw
#LOCAL_FORCE_STATIC_EXECUTABLE := true
LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) # install to system/xbin
#LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_UNSTRIPPED)
#LOCAL_MODULE_TAGS := eng user
include $(BUILD_EXECUTABLE)
################## build iwlist ###################
include $(CLEAR_VARS)
LOCAL_SRC_FILES := iwlist.c iwlib.h
LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC
LOCAL_MODULE:= iwlist
LOCAL_STATIC_LIBRARIES := libcutils libc libm libiw
#LOCAL_FORCE_STATIC_EXECUTABLE := true
LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) # install to system/xbin
#LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_UNSTRIPPED)
#LOCAL_MODULE_TAGS := eng user
include $(BUILD_EXECUTABLE)

4. Modify it as follows:

4.1 Change wireless.22.h to be wireless.h ;

4.2 Modify ifrename.c, add a getline() function. You can get the code from external/genext2fs/genext2fs.c ;

Notice that this file uses macro to pass another function to getline() .

4.3 Modify iwlib.h , change #include to be #include .

[I don't know what it means. -- spica]

5. Compile

qiu@qiubutu:~/eclair-21/external/wireless-tools$ . ../../build/envsetup.sh
qiu@qiubutu:~/eclair-21/external/wireless-tools$ mm
============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=2.1-update1
TARGET_PRODUCT=generic
TARGET_BUILD_VARIANT=eng
TARGET_SIMULATOR=
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm
HOST_ARCH=x86
HOST_OS=linux
HOST_BUILD_TYPE=release
BUILD_ID=ECLAIR
============================================
make: Entering '/home/qiu/eclair-21'
target thumb C: iwconfig <= external/wireless-tools/iwconfig.c
In file included from external/wireless-tools/iwlib.h:25,
                 from external/wireless-tools/iwlib-private.h:19,
                 from external/wireless-tools/iwconfig.c:14:
bionic/libc/include/stdlib.h:84: warning: declaration of 'abs' shadows a built-in function
bionic/libc/include/stdlib.h:88: warning: declaration of 'labs' shadows a built-in function
bionic/libc/include/stdlib.h:92: warning: declaration of 'llabs' shadows a built-in function
target thumb C: libiw <= external/wireless-tools/iwlib.c
In file included from external/wireless-tools/iwlib.h:25,
                 from external/wireless-tools/iwlib-private.h:19,
                 from external/wireless-tools/iwlib.c:14:
bionic/libc/include/stdlib.h:84: warning: declaration of 'abs' shadows a built-in function
bionic/libc/include/stdlib.h:88: warning: declaration of 'labs' shadows a built-in function
bionic/libc/include/stdlib.h:92: warning: declaration of 'llabs' shadows a built-in function
target StaticLib: libiw (out/target/product/generic/obj/STATIC_LIBRARIES/libiw_intermediates/libiw.a)
target Executable: iwconfig (out/target/product/generic/obj/EXECUTABLES/iwconfig_intermediates/LINKED/iwconfig)
target Non-prelinked: iwconfig (out/target/product/generic/symbols/system/bin/iwconfig)
target Strip: iwconfig (out/target/product/generic/obj/EXECUTABLES/iwconfig_intermediates/iwconfig)
Install: out/target/product/generic/system/xbin/iwconfig
target thumb C: iwlist <= external/wireless-tools/iwlist.c
In file included from external/wireless-tools/iwlib.h:25,
                 from external/wireless-tools/iwlib-private.h:19,
                 from external/wireless-tools/iwlist.c:14:
bionic/libc/include/stdlib.h:84: warning: declaration of 'abs' shadows a built-in function
bionic/libc/include/stdlib.h:88: warning: declaration of 'labs' shadows a built-in function
bionic/libc/include/stdlib.h:92: warning: declaration of 'llabs' shadows a built-in function
target Executable: iwlist (out/target/product/generic/obj/EXECUTABLES/iwlist_intermediates/LINKED/iwlist)
target Non-prelinked: iwlist (out/target/product/generic/symbols/system/bin/iwlist)
target Strip: iwlist (out/target/product/generic/obj/EXECUTABLES/iwlist_intermediates/iwlist)
Install: out/target/product/generic/system/xbin/iwlist
make: Leaving “/home/qiu/eclair-21”

6. Copy files to the system

qiu@qiubutu:~/eclair-21/external/wireless-tools$ croot
qiu@qiubutu:~/eclair-21$ cp out/target/product/generic/system/xbin/iwconfig /nfs/rootfs/system/xbin/iwconfig
qiu@qiubutu:~/eclair-21$ cp out/target/product/generic/system/xbin/iwlist /nfs/rootfs/system/xbin/

7.Test

After starting Android:

# modprobe libertas
# modprobe libertas_sdio
libertas_sdio: Libertas SDIO driver
libertas_sdio: Copyright Pierre Ossman
model=0xb
sd8686_helper.bin sd8686.bin
init: untracked pid 853 exited
init: untracked pid 856 exited
libertas: eth1: Marvell WLAN 802.11 adapter

# iwconfig eth1
eth1      IEEE 802.11b/g ESSID:"Antrose-11g"
          Mode:Managed Frequency:2.437 GHz Access Point: 00:15:E9:0C:87:7C
          Bit Rate:1 Mb/s   Tx-Power=13 dBm
          Retry limit:8   RTS thr=2347 B   Fragment thr=2346 B
          Encryption key:off
          Power Management:off
          Link Quality=83/100 Signal level=-60 dBm Noise level=-93 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:1441
          Tx excessive retries:44 Invalid misc:11220   Missed beacon:0
# iwlist scan
eth1      Scan completed :
          Cell 01 - Address: 00:22:6B:8C:5D:3A
                    ESSID:"Antrose-11g"
                    Mode:Managed
                    Frequency:2.412 GHz (Channel 1)
                    Quality=65/100 Signal level=-78 dBm Noise level=-96 dBm
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
                              12 Mb/s; 48 Mb/s
# iwconfig eth1 essid Antrose-11g
# iwconfig eth1
eth1      IEEE 802.11b/g ESSID:"Antrose-11g"
          Mode:Managed Frequency:2.437 GHz Access Point: 00:15:E9:0C:87:7C
          Bit Rate:1 Mb/s   Tx-Power=13 dBm
          Retry limit:8   RTS thr=2347 B   Fragment thr=2346 B
          Encryption key:off
          Power Management:off
          Link Quality=83/100 Signal level=-60 dBm Noise level=-93 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:1441
          Tx excessive retries:44 Invalid misc:11220   Missed beacon:0

Done.

Wednesday, July 11, 2012

HowTo - Using Perf KVM to trace KVM

1. From guest OS: (Android-x86 for example)

$ cat /proc/kallsyms > /sdcard/guest.kallsyms
$ cat /proc/modules > /sdcard/guest.modules

2. Pull out the two files above via adb.

3. On the host OS:

3.1 Record

# perf kvm --host --guest --guestkallsyms=guest.kallsyms --guestmodules=guest.modules record -a

(The record will be saved to perf.data.kvm file under current directory.)

3.2 Report

# perf kvm --host --guest --guestkallsyms=guest.kallsyms --guestmodules=guest.modules report -i perf.data.kvm

Ref:

[1] http://www.linux-kvm.org/page/Perf_events

Error: adb unable to connect xxx.xxx.xxx.xxx:5555

I had this problem when I tried to adb connect to the virtual phone in KVM. You might also have this problem using the emulator.

Solution:

Step 1. Don't panic, if you have tried methods like "setprop service.adb.tcp.port 5555, stop adbd, start adbd", which didn't work.

Step 2: In the phone terminal, type

# adb remount

Step 3: Try connecting again.

$ adb kill-server

$ adb connect xxx.xxx.xxx.xxx

...

xxx.xxx.xxx.xxx (hopefully) connected.

Step 4: Problem solved.

Sunday, May 13, 2012

HowTo - Porting Android 4.0 ICS onto x86 VirtualBox

Thanks to Android-x86 community.

1. Build environment

1.1 Install Java JDK 7 [1]

(1) Download Java JDK 7

(2) Unzip, rename as java-7-oracle

(3) Move it to /usr/lib/jvm

(4) Use this tool to change the system Java version to java-7-oracle

$ wget http://webupd8.googlecode.com/files/update-java-0.5b
$ chmod +x update-java-0.5b
$ bash update-java-0.5b

1.2 Install required packages (Ubuntu 12.04) [2]

$ sudo apt-get install git-core gnupg flex bison gperf build-essential \
  zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \
  libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-dev:i386 \
  g++-multilib mingw32 openjdk-6-jdk tofrodos python-markdown \
  libxml2-utils xsltproc zlib1g-dev:i386 libxext-dev:i386 lib32ncurses5-dev

2. Build the image

2.1 Download Android-x86 source file [3]

$ mkdir android-x86
$ cd android-x86
$ repo init -u http://git.android-x86.org/manifest -b ics-x86
$ repo sync

*ics-x86 is based on Android 4.0 release. If the above link fails, try git://android-x86.git.sf.net/gitroot/android-x86/x86/platform/manifest.git -b

2.2 Build

$ bash
$ source build/envsetup.sh
$ lunch

Choose eeepc-eng as target product (that is the only thing that compiles through).

$ m -j16 iso_img

*16 is the number of parallel threads which can be determined by cpu info.

2.3. Locate the generated image at

out/target/product/eeepc/eeepc.iso

3. Download and run VirtualBox

3.1 Configurations: [4]

OS Type: Linux 2.6
Base Memory: At least 256MB, 512MB is better.
CD/DVD-ROM image: eeepc.iso

3.2 Start

On the boot menu, select the VESA mode item.

3.3 Usage [5]

4. Alternative option

For VirtualBox Android, try BuilDroid. It has a faked Wi-Fi connection, making things much easier.

Check my test on VirtualBox here.

http://www.youtube.com/watch?v=VQB9Pp8v5Ow

[1] http://askubuntu.com/questions/67909/how-do-i-install-oracles-jdk-6
[2] http://source.android.com/source/initializing.html
[3] http://www.android-x86.org/getsourcecode
[4] http://www.android-x86.org/documents/virtualboxhowto
[5] http://blog.gokifu.com/2011/05/android-x86-faster-emulator/

Tuesday, April 24, 2012

HowTo - Building Android ICS from Source

1. Download the Source via git

$ git://github.com/CyanogenMod/android.git -b gingerbread

I personally recommend CyanogenMod version, because it was the only version that worked for me.

2. Obtaining hardware-related proprietary binaries (important)

https://developers.google.com/android/nexus/drivers

Extracting the downloaded file
http://source.android.com/source/building-devices.html

3. Build *

$ bash

$ source build/envsetup.sh
$ lunch
$ make -j4

4. Flash the device

$ adb reboot bootloader
$ fastboot flashall -w

---

* Possible error:

make: *** No rule to make target `vendor/cyanogen/proprietary/RomManager.apk', needed by `out/target/product/galaxys/system/app/RomManager.apk'. Stop.

Solution:

Step 1. Don't panic.

Step 2. Type in

$ cd vendor/cyanogen
$ ./get-rommanager

Step 3. Problem Solved.

[1] http://source.android.com/source/building.html

Monday, April 9, 2012

HowTo - Building Android kernel modules (bcm4329.ko)

This document tells us how to build individual modules instead of compiling the whole kernel.

bcm4329.ko is the wireless driver module for Google Nexus One. It is located in the kernel files.

Under kernel directory:

1. Include the arm-eabi- tool directory into the path.

$ export PATH=$PATH:~/android/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/

2. Generate the configuration file.

2.1 Use herring_defconfig as the default configuration file.

$ make ARCH=arm herring_defconfig

2.2 Modify the configuration file.

$ vi .config

Make changes as follows:

CONFIG_CROSS_COMPILE = "arm-eabi-"
CONFIG_LOCAL_VERSION = "-cyanogenmod"
#CONFIG_LOCALVERSION_AUTO

set all CONFIG_BCM* to m

3. Change another file (and I don't know why)

$ vi scripts/setlocalversion

Locate the following line

if $short; then
echo "+"

and change echo "+" to echo ""

5. Set building architecture to be arm.

$ export ARCH=arm

6. Make.

$ make modules

7. Push the new module into the phone.

7.1 Remount to be writable.

$ adb remount

7.2 Push.

$ adb push drivers/net/wireless/bcm4329/bcm4320.ko /system/modules

Ref: http://stevechui.blogspot.com/2011/10/compiling-kernel-modules-tunko-for.html

Thursday, March 29, 2012

HowTo - Building Android Kernel

Again I personally recommend CyanogenMod version.

Partly referred to : http://wiki.cyanogenmod.com/wiki/Building_Kernel_from_source

Notice: Kernel Source Code is : https://github.com/CyanogenMod/samsung-kernel-crespo

configure file: herring_defconfig

Unpack original image, pack new image: http://forums.androidcentral.com/t-mobile-nexus-s-rooting-roms-hacks/48675-how-compile-nexus-s-kernel-source.html

Notice: Don't use the image pulled from the device, use the one in the installation zip file.

Copy
~/android/kernel/samsung-kernel-crespo/drivers/net/wireless/bcm4329/bcm4329.ko
into /system/modules/