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I did an extensive search to try and find if anyone built binutils to run native on android and came up empty. I did, however, find someone who claims to have gotten Fortran to compile and run on android (specificimpulses.blogspot.com/2011/01/my-android-speaks-fortran-yours-can-too.html) He seems to have problems at the linker phase. I was wondering what people thought about the possibility. I would like to mess around with arm assembler on my android device whilst out and about...
So this is awesome, I set the build and the host environment to arm-android-eabi and I magickally got out i686-elf binaries that run on my linux workstation...amazing! I didn't know that cirrus made a processor with the smarts to automagically execute arm-android-eabi target code when presented with it...
../binutils-2.19.1/configure --prefix=/opt/compilers/gcc/native-android --build=arm-android-eabi --host=arm-android-eabi --target=arm-android-eabi --with-sysroot=../android-ndk-r5/platforms/android-8/arch-arm
So in addition to that I tried to wipe my path clean and point only to the binutils and gcc under the ndk-toolchain directory but it gave me the infamous 'cannot create working executable'....wow? ya think, config?
Anyone know how to turn off the test for building working executables when cross compiling, or perhaps to point in the configure script options where to find crti.o which is what was missing at the link phase?
Strike that, I mean Via. my workstation uses a via processor, not that that is important here...
Success! Well, in as much as I was able to compile binaries of some of the binutils and run them on my g-tab. I haven't tried to assemble a piece of code and link it yet. What I did was use the info in android-ndk-r5/docs/STANDALONE-TOOLCHAIN.html
which suggested that I run:
$NDK/build/tools/make-standalone-toolchain.sh --platform=android-5 --install-dir=/tmp/my-android-toolchain
which created a standalone toolchain self enclosed. I then set path carefully so I was pointing to the toolchain directory's bins. Then I ran configure using
../binutils-2.19.1/configure --prefix=/root/android --host=arm-android-eabi --target=arm-android-eabi
and made a few comments to code--real hacks like casting &stat.time to a time_t * and changing #ifdef tests to force inclusion of the correct code. I also had to link:
ln -s /root/my-android-toolchain/bin/arm-linux-androideabi-ar /root/my-android-toolchain/arm-android-eabi-ar
just because I was tired and didn't want to f**k with the compile script to get it to point to the correct set of toolchain binaries. In the end, I copied over nm-new, ld-new, as-new, and strip-new to my gtab and ran them and got errors that I expected like:
as-new aa.s
Error: can't open aa.s for reading: No such file or directory. Indicating that at least gas was running native on my gtab...
Of course, that is a first tiny step....
Btb, I had to unzip into the /data directory on android for the executables to run. Ran them in a terminal emulator...
Hi all, I'm just starting getting into App development and I want to attach the Android source code into Eclipse so that I can reference it locally. Is there anyone here who has experience doing this on Windows who is willing to walk me through it?
Alternatively, I'll go it on my own if someone could help me get past this one roadblock. Thus far I've installed Python and msysGit (and updated my PATH variable accordingly) so that I can use git and repo. Something isn't working however and repo runs into an error that I can't seem to figure out. I'm contemplating uninstalling all that and starting from scratch with Cygwin.
Here's a tutorial on setting up Eclipse on windows (albeit over a year old so no guarantees) link
personally I would dual boot linux... it was a breeze setting it up and there's plenty of tutorials for that.
You could install ubuntu (i think) side by side with win7 using wubi, as if it were a program or something. That way you're not messing with partitions.
I already have Eclipse set up. This is not the problem. I'm having trouble downloading the Android source code - NOT the SDK - on my Windows PC. Specifically, I always run into errors when I try to use "repo init -u blah blah" as instructed on the android source page. If someone has successfully done this on Windows, I'd like someone to give me some guidance, because either I'm doing something wrong or my setup is not correct.
Right now I'm trying to use Cygwin (basically creates a linux environment inside Windows). The last time I tried using repo, I got this:
EDIT: Code removed. I found a solution, outlined below, for anyone else who wants to get the Android source into Eclipse.
Okay, I got the source code, it was actually pretty easy to do, and I didn't even need repo to do it . For those who may find this useful, here's how.
0. It is assumed you have already installed both Eclipse and the Android SDK. If you don't have those yet, download them and set those up. If you aren't on Windows but still want to know how to get the source and import it into Eclipse, you can skip step 1.
1. Install Cygwin on your computer. During the installation, you will be presented with a package explorer and you can choose specific packages to install. Choose whatever you like, but make sure to include automake, bison, curl, flex, gcc, git, gnupg, python, zip, and an editor of your choice, like nano or vim (you can use the search field at the top to find these quickly).
This will basically give you a Linux shell on Windows whose root directory is something you've designated, like C:\cygwin.
2. A few more things to set up. Fire up Cygwin and make a bin folder in your home directory. Add this directory to your PATH variable, then cd into it.
Code:
mkdir ~/bin
PATH=~/bin:$PATH
cd bin
This blog post has code for a python script that will be used later. Make a new file using an editor of your choice. Copy the code and save the file as anything you want (I named it "pack.py"). When you're done, cd back to your home directory.
3. Downloading source. From your home directory (or a subdirectory if you wish), use git to clone the platform frameworks base into a new directory (here I've called it "android").
Code:
git clone http://android.git.kernel.org/platform/frameworks/base.git android
cd into that directory and examine the git tags.
Code:
cd android
git tag
You'll get a list of tags. Choose the one that matches the API level you want to build your project(s) in. I'm using API level 10, so I chose android-2.3.3_r1. That's what you're going to check out.
Code:
git checkout android-2.3.3_r1
4. Reorganizing the source code. You need to locate all the java source files and restructure everything into a directory structure that matches the package naming. Fortunately, that script from earlier does exactly this and then zips it up into a nice little package for you called "sources.zip".
Code:
python ~/bin/pack.py
5. Move this zip file to the proper SDK platform folder. Since I downloaded sources for API level 10, I want to move this zip file to
Code:
C:\android-sdk-windows\platforms\android-[B]10[/B]
You can do this with your regular old file explorer on Windows. Extract the contents into a subfolder named "sources".
6. Get Eclipse to recognize them. Open up a project (or start a new one) whose target is the API level you just did all that stuff for. In the package explorer, right-click the project root and click "Refresh". Now when you browse the class files under project-root/android 2.3.3/android.jar/whatever, you'll see actual source code instead of that nasty "Source not found" page.
Enjoy ^_^
Motorola released the source code of the Webtop application at sourceforge!!!
Does this mean devs can now easily integrate and improve webtop?
I don't know how the guys at CM7 are going about hacking it or how much they have done towards their own webtop, and even with the source it probably still depends in lots of motoblur hacks and dependencies that are not part of CM7. However, it is indeed more then a big step in the right direction and should help dev's immensely! Very good news, thank you sir
Sent from my MB860 using Tapatalk
Did some more digging, the OP meant to link this URL: http://sourceforge.net/projects/motorola-webtop.motorola/files/ which does contain jaunty jackalope 9.04 as 1.2.0 and maverick meercat 10.10 as 1.3.0...
Just ordered a lapdock so going to start hacking on this. Has anyone tired building a Maverick webtop for the atrix? I am assuming if done then it will be supported by ubuntu till april 2012, so the repositories should work?
i sure hope so, cuz I tried every web top hack on this site and none of them have worked....maybe there is a solution somewhere in those 100 pages filled with mostly noobs asking how to flash or do they need to be rooted to do it lol
Has anyone actually tried building this yet? I don't have a dev box set up that I can use yet but want to play around with this when I get a chance....
would this possibly mean, that there's a chance to port the webtop-function to other devices/smartphones that have HDMI- and USB- Ports?
For example an Xperia Arc working with the Lapdock...
I don't understand the links. From what I can tell, all of these are Jaunty. They are are listed as delta's of each other, but the build instructions all indicate they are still Jaunty.
This is from a quick lookover, not in depth. It may very well be that the readmes are wrong, but I'm not encouraged by the firefox packages I see. I'm going to try to put together the build environment they describe to see if I can build one. If so, then I'll see what can be done after that...this is very back burner, so don't be expecting anything soon no matter how much of an obsession this has become
After some wget magic I was able to download all 4 releases into independent folders, and I've tried building webtop 2.0.0 on 11.10 setup.. didn't work so well. missing dependencies...
I am confused myself on the read-me's they all seem to indicate that you seed with jaunty. and if 1.3.0 is based on maverick then their build process is wrong?!
I've had success using rootstock (slick program) and chroot getting into a emulated amr7 root environment. I've even used my current install of webtop pulled out of my phone (from webtop2sd) and put into my dev machine and got that working well. but getting the packages to build in the explained environment alludes me.
I'm going to try building 1.3.0-133 tonight using a new rootstock pull of maverick. if people are interested I'll post how I grabbed all of the packages off of sourceforge later tonight using wget in 3 easy steps. this is a side project of mine, but I would really like to try and build webtop packages from scratch so that I can build a repo to allow us to up date our webtops with just apt-get to get to the latest edition.
Has any one else had success building the packages?
cpuchip
cpuchip said:
After some wget magic I was able to download all 4 releases into independent folders, and I've tried building webtop 2.0.0 on 11.10 setup.. didn't work so well. missing dependencies...
I am confused myself on the read-me's they all seem to indicate that you seed with jaunty. and if 1.3.0 is based on maverick then their build process is wrong?!
I've had success using rootstock (slick program) and chroot getting into a emulated amr7 root environment. I've even used my current install of webtop pulled out of my phone (from webtop2sd) and put into my dev machine and got that working well. but getting the packages to build in the explained environment alludes me.
I'm going to try building 1.3.0-133 tonight using a new rootstock pull of maverick. if people are interested I'll post how I grabbed all of the packages off of sourceforge later tonight using wget in 3 easy steps. this is a side project of mine, but I would really like to try and build webtop packages from scratch so that I can build a repo to allow us to up date our webtops with just apt-get to get to the latest edition.
Has any one else had success building the packages?
cpuchip
Click to expand...
Click to collapse
I agree with all you said about the build...I just don't see any of them built on Maverick based on their instructions. Please post your wget magic. There 's lots of files and I didn't take time to figure how to do it.
I've gotten as far as you have. I've got the rootstock environment and packages installed. I haven't looked closely at everything, and I don't think the custom moto packages get installed (like I don't see Firefox installed, and what's in the repository is not firefox 8). And no, I haven't figured out from their instructions how to generate the system image to put on the phone. My first goal is to do just that...generate a stock webtop image per the instructions and get it onto the phone. If I can do that, then I was going to try new packages.
I've also downloaded the mentioned cross compiler and installed it, but I haven't gotten much further that that on figuring it out.
Eventually, I would like to get a PPA on launchpad with new packages that everyone can use. I've read that launchpad will now support armel PPAs.
Seems like we're both stuck at the same part. I was thinking of doing the same thing as you, start a PPA at Launchpad.
I believe I can help you with getting a base ubuntu.img that you could work with.
if you follow the torial on this website: https://wiki.ubuntu.com/ARM/RootfsFromScratch
it instructs you on how to build an ext2/ext3 .img file and then unpack the tar into it.
say you want an ubuntu-arm.img file that'll contain your ubuntu system.
mke2fs -F ubuntu-arm.img (we want ext2 or ext3 not ext4, android doesn't support it yet)
dd if=/dev/zero of=ubuntu-arm.img bs=1MB count=0 seek=4096
sudo mount -o loop ubuntu-arm.img /directory/to/mount/to
now finally unpack the tar into the mounted image!
sudo tar -C /mnt -zxf armel-rootfs-200904151837.tgz
sudo umount /mnt
that should get you want you want to start with.
haven't done the maverick build yet. I'll post the wget magic next after I look it up.
---------- Post added at 09:48 PM ---------- Previous post was at 09:32 PM ----------
okay now for the wget magic!
first download the index.html page of the WT-1.3.0-105 page (I assume you want 2.0.0 or 1.3.0 release)
mkdir WT-1.3.0
cd WT-1.3.0
wget http://sourceforge.net/projects/motorola-webtop.motorola/files/WT-1.3.0-X/WT-1.3.0-105_DBN-1/
next strip out everything but the table tags that make up the list of downloads, injecting a <html><body> above the <table> tag replacing what you removed
and </body></html> after the </table> tag replaceing what you removed.
next start wget with the index.html file just saved by first running wget.
wget -i index.html --force-html --content-disposition
on ubuntu I had to add the --content-disposition flag in order for it to properly save the file names. on fedora it did the right thing without that flag.
then wait an hour and you should have in that WT-1.3.0 will have all the 105 files in it!
I've got a two more scripts to unpack all the files. I'll have to look them up. but that should get you going.
AIW that and webtop-panel (and supposedly evbridge...)
those are the packages I care about in the port.
Do you know what package on the source code page contains AIW? (that's the android in window application.)
I haven't had a chance to work on this lately. However, I suspect that those components are pure Moto code, and therefore not required to release. Probably only the binaries are included. That's pure speculation, though.
The readme's say that it's not one to one for the packages they posted and the programs installed from them in our webtops. though reading the new releases on that webtop sourceforge project.. it says it's only the packages they were required to release by oss licensing... so it's probably not posted. the readme file inside of /usr/share/aiw says it's copyrighted and proprietary. So that really only gives us a few options... the easiest of which is isolated the packages we want to maintain and find all the libraries they link/load to dynamically and create a motorola/compatibility/lib/folder to put them all in, and make their execution start up using a change of library path, that way we can update the operating system without affecting those packages.... not my favorite method, but doable.
I've attached an lsof and an ldd of the aiw program. It'd be no small feat to isolate that package.. but it might not be so bad to take the webtopscripts1.6 and find out what packages they hold back.. and then use that list to find what libraries to move across the system. just ideas at this point.
after looking around, it looks like we do not have the source to the motorola specific software (webtop parts). If we do want to move to a later version of ubuntu but still keep things like aiw (android in window) then my thinking would be to jail the current applications that we like (aiw, webtop-panel) those with which we do not have the source to. and then move us to the latest ubuntu (11.10)
My hope is though that the new update to the Atrix will be the latest webtop. That would be much less painful because I believe it's based on 10.10 and we have current support for that through april and then I wont have to bother with this until then............
but I think I'll create a few scripts and automate the whole process of jailing the critical parts of webtop, and see if I can get them to work through the jailed environments.
what do you think?
Yes, definitely we will need to somehow isolate the pieces that have library dependencies moving forward.
Also, in trying to get a non-gnome xfce4 environment while still using webtop-panel, I've come to the conclusion that webtop-panel is a modifed gnome-panel application. It seems to need gnome-settings-daemon, and doesn't like it when you kill gnome-settings-daemon. So I would love to see the source for that to see what they are really doing...probably not going to happen.
Hey are you running a newer webtop then stock 1.2
I see that you're running 2.3.6 (is that from fruitcake derivitive? or 4.5.140?) if so is the firefox/ubuntu newer in it?
I kinda can't wait for the new update to push, I really hope we're getting an update to webtop that would move us to 10.10 or better. That would make my day.
There is another thread where this was discussed, but in short:
webtop 2.3.4: original firefox
webtop 2.3.5: firefox 6 or 7 (I think 6, nut I don't remember offhand)
webtop 2.3.6: firefox 8
Sorry if this is answered elsewhere (and please point me to the correct thread) but does webtop use some kind of modified xorg or some custom x11 derivative? If it's modified that should be published and could help with building our own app.
Sent from my HTC Desire using XDA App
Parastie said:
Sorry if this is answered elsewhere (and please point me to the correct thread) but does webtop use some kind of modified xorg or some custom x11 derivative? If it's modified that should be published and could help with building our own app.
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
It looks like they are using a custom xorg install:
http://sourceforge.net/projects/motorola-webtop.motorola/files/WT-1.3.0-X/WT-1.3.0-105_DBN-1/
http://sourceforge.net/projects/mot....3.0-105_DBN-1/xorg-7.5+6ubuntu3.tgz/download
I don't know how far different it is, but there should be a changelong inside that .tgz file.
The following contains binaries, and instructions for use of an experimental newer toolchain than those included in the android pre-built package.
This is provided to allow existing linux kernel developers experiment with the updated version of GCC (besides the complicated building instructions the code just has a small patch for a known issue with android and 4.6.* otherwise is directly from GNU (see build information below)
The packages I'm also providing to help developers current on windows (With cygwin but no other virtual environment) to start exploring android Linux kernel development for their devices. (In addition to a OSX toolchain for more advanced mac users)
due to the slight differences between kernels on different devices this How To is intended to be used for advanced users who can adjust for the differences required for the devices specific kernel.
I may add additional guides to this thread if I find a need for them.
[size=+1]Binary Toolchains[/size]
I have two versions of a GCC-4.6.3 toolchain
1) For x86 linux: toolchain-4.6.3.tar.bz2 (Sha1: c8c57aba6ad92e9acddf29ba8620ba880be09a81)
2) For Cygwin (windows): toolchain-4.6.3.cygwin.tar.bz2 (Sha1: 6947e1c1ba95195019f542eb8ba0708667b63eca)
3) For OSX (mac/darwin): toolchain-4.6.3.darwin.tar.bz2 (Sha1: 9a977f0672863fdd9501383a6ad1e30723281f68)
[size=-1]> The linux version was built via this script: http://pastebin.com/b2dZ8YtG (or in the included toolchain_notes.txt)
> The cygwin/darwin version uses the same source however has a slightly modified script (see the included toolchain_notes.txt for the updated script)[/size]
[size=+1]System Requirements[/size]
Note I have a 64bit debian linux box, and a 64bit version of WIndows7 Pro running cygwin, while I believe these binaries ought to be compatible with all x86 linux and cygwin installs these have not been tested by a wide number of people yet.
> Linux users: If you have a working android build environment likely no additional requirements are needed. In addition you must build any kernel/android utilities from a case sensitive filesystem or disk image.
> OSx users: the cygwin packages will give you an idea of what is required, please also see the README in the tar.bz2 about manually installing elf.h
> Cygwin users: as its unlikely you have compiled a kernel with cygwin up to this point you may wish to ensure the following packages are installed (as well as any cygwin recommends to be used with them):
vim
vim-common
make
cmake
lzop
gcc
gcc-core
gcc-g++
wget
git
git-compleation
libncurses-devel
python
Cygwin users must also set their NTFS file partition to allow case sensitive files:
To do this open regedit and change:
HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\kernel\obcaseinsensitive
to 0
after this reboot and the NTFS kernel will allow cygwin to use case sensitive files (ie 'AbC' and 'aBc' as two different files)
[size=+1]Advanced Kernel Building Guide[/size]
Since may devices are slightly different this can only be a high level kernel building guide
Please ask for any specific directions from the current kernel maintainer.
To most people who have built kernels before this will look familiar, the most important part is preparing your local environment to use the new toolchain,
1) If you have not already download the tar.bz2 above, (pick the one for the computer you are preparing to build kernels on)
2) extract the file (for the sake of this guide I will assume it is extracted into a ~/android directory)
ie on cygwin you might:
mkdir -p ~/android
cd ~/android
tar -xjvf toolchain-4.6.3.cygwin.tar.bz2
Note: steps one and two are just properly installing the toolchain, you will not need
to repeat them to build a different kernel.
2.b) OSX Only: check elf.h
open ~/android/toolchain-4.6.3/README in a text editor and check if elf.h is installed, otherwise manually install it as per the readme
3) fetch your kernel source into the ~/android directory and change into the
source codes root directory
(this can be via a git repo or tarball)
example if you wanted my ACER a100/a500 source you might run:
git clone git://github.com/ezterry/AcerTabKernel.git
cd AcerTabKernel
change this to match the source you are fetching
4) In the root directory of the kernel source (~/android/AcerTabKernel in the about a100/a500 example) update the environment for the cross compiler
add the toolchain to your path:
export PATH=$HOME/android/toolchain-4.6.3/bin:$PATH
set the cross compile:
export ARCH=arm
export CROSS_COMPILE=arm-linux-androideabi-
export KERNEL_DIR=`pwd`
(this will need to be done once for each terminal you use to run any of the following make commands)
5) Grab your configuration
From the device:
adb pull /proc/config.gz
gzip -dc config.gz > .config
or from a prepared configuration if it's included in your code base by running
make _defconfig
example for the a100/a500 code base is 'make vangogh_defconfig' for the a100 and 'make picasso_defconfig' for the a500
6) Customize configuration
just run menuconfig and use the UI to update settings
make menuconfig
7) building the kernel (zImage)
This is normal at this point with 'make -j'
so for a quad core CPU you can run
make -j5
(note: the wrong number in the -j argument will not harm the build but may slow down the building process by either using too few threads or needing to keep track of too many)
8) If it worked you will now have the kernel in arch/arm/boot/zImage
this can be injected into the boot.img (as the kernel, using an existing ramdisk) as is
If it failed for your kernel your kernel source may need one of the common patches
9) Building modules
the following will prepare the modules in subdirectory mod:
make modules
rm -rf mod
mkdir mod
cp `find ./ | grep .ko$` modules.order mod/
After these commands [if no errors] you can simply copy the contents of mod/ to /system/lib/modules on your device, note it is recommended usually to remove the existing contents of /system/lib/modules unless there is a closed source module required from the previous build despite the new kernel.
[size=+1]Common Patches Required[/size]
If your kernel has not been built for the new toolchain or on cygwin before you may require some of these common patchs: (I've thus far only tested this on my Acer A100/A500 source)
wireless/bcm4329 for GCC-4.6.3:
https://github.com/ezterry/AcerTabKernel/commit/123f32e27e2c74f1c1789ae5d6d5a1c04e1e264c
linux kernel module patch for cygwin (broken elf.h):
https://github.com/ezterry/AcerTabKernel/commit/220db49593cf6b9f3b556e2f4b75b2f6d3ff556c
Error compiling security/smc/bridge_pub2sec.S (I required the cygwin elf patch and this patch to build the Franco galaxy nexus kernel)
0001-Fix-build-error-with-4.6.3-toolchain-smc-0.patch
(use 'git am 0001-Fix-build-error-with-4.6.3-toolchain-smc-0.patch' to apply)
OSX stat patches (fixes errors between GNU and BSD stat):
https://github.com/ezterry/AcerTabKernel/commit/0c49df3cc1a05a0ccd98201511cdc0534aaeb35a
Errors loading newly built modules (modules appear to build cleanly but wont install):
simply add -fno-pic to CFLAGS_MODULE
https://github.com/ezterry/AcerTabKernel/commit/c5ed0fcb014d36936a86ad253f15af43de2f644a
(I can add others here if highlighted to me, and as I find them)
[size=+1]Other Toolchain uses[/size]
The linux toolchain can be used to build android components, however this requires various manipulation to the android /build git repository as currently various other toolchains have hard coded paths into the prebuilt repo. If you intend to incorporate this into your build it may be best to inject the toolchain into your prebuilt repo rather than expect your users to download the links above, ensure to keep the compile notes as it explains how to get the source code to the toolchains)
On cygwin/osx it may also be possible to build android applications however I've not yet tested this as the scripts to make a proper build are complex when attempted outside the android build tree.
Excellent!!! thanks Man!!! Has been looking for one of these
Added in the OSX version of the toolchain (and some related patches)
Also if you are having problems with your modules built with this toolchain a CFLAG fixes it. (see note in common patches)
FINALLY!!! Great Instructions followed them to the T and BAM got my kernel compiled!!!
wow your toolchain is so small, many thanks, just compiled a kernel for my LG P500 gonna test it, thanks again
Bookmarked for testing when I wake up...
I can almost put: "Building under Windows is not currently supported." (quote from google), unofficially at least, out of my mind...
I have been spoiled by Windows for far too long I fear, my attempt for this last week at getting Linux setup and building CM9 has been nothing but a complete FAILURE, too many single line entrys for different distributions/package combo's, commands I dont know and cant find because of wildcard portions of them and lack of understanding, and not enough scripts like the wonderful Compile CM9 script someone put up (cant run it because all the pre-req's arent setup).
Good god Ill be jumping for joy if this works tomorrow on WinBlows!
EDIT: never mind, problem solved, what I need to know now won't be solved here
I wish i knew how to go about doing this..
Thanks
Thanks For ........... i Really need It .........
Hammerfest said:
Bookmarked for testing when I wake up...
I can almost put: "Building under Windows is not currently supported." (quote from google), unofficially at least, out of my mind...
I have been spoiled by Windows for far too long I fear, my attempt for this last week at getting Linux setup and building CM9 has been nothing but a complete FAILURE, too many single line entrys for different distributions/package combo's, commands I dont know and cant find because of wildcard portions of them and lack of understanding, and not enough scripts like the wonderful Compile CM9 script someone put up (cant run it because all the pre-req's arent setup).
Good god Ill be jumping for joy if this works tomorrow on WinBlows!
Click to expand...
Click to collapse
If you succeed tell me how to do it in a more familiar way
I get errors regading the processor not being supported?
brfield said:
I get errors regading the processor not being supported?
Click to expand...
Click to collapse
Sorry I can't support devs that have not learned cut copy and paste.
You probably forgot to export some of the environment variables or are just trying to run a arm binary on your PC and or a x86 binary on your arm device.
But why am I guessing? Why don't we know what you tried to run and what the actual text of the error was.. what type of kernel you tried to build, what you are running?
These packages are for developers if you feel like using them its time to learn to how to trouble shoot a problem and write a ticket to explain said problem clearly to others with at least some information to give us a chance to understand.
Sent from my Galaxy Nexus using Tapatalk 2
Great guide. Have the bcm4329 wireless module, so followed the tips and everything compiled and works!
Thanks!
one question,how to compiled android kernel with -O3 optimization?
jxxhwy said:
one question,how to compiled android kernel with -O3 optimization?
Click to expand...
Click to collapse
Um, in general its recommended you don't:
-O3 is not recommended for the kernel as many low level parts require the assembly code generated to remain as is and not be optimized as will be by some of the options -O3 enables thus likely reducing the stability of your kernel.
---
That said the menuconfig has an option to optimize for size (-Os) if enabled else -O2
For other optimization (including tuning for your cpu) you can add them to the CFLAGS_KERNEL/CFLAGS_MODULE in the make file.)
For -O3 like functionality you could add the increment to the line:
-finline-functions, -funswitch-loops, -fpredictive-commoning, -fgcse-after-reload, -ftreel-vectorize, -ftree-partial-pre and -fipa-cp-clone
-Ofast is -O3 with -ffast-math as well
If you do build with all the -O3 or-Ofast options ensure you test the kernel for stability and run some benchmarks. (as it may not actually be faster depending on the cache misses)
The first option I'd start pruning was the one mentioned in my reference below -fgcse-after-reload.
If you really insist on -O3 rather than just adding the optimization you want that are not in O2,it can be added also in the Makefile where the configure flag is checked and its added to KBUILD_CFLAGS
Obviously all and any of this is at your own risk, anything that breaks you have to find a way to fix it.
Reference:
Gcc optimize options:
http://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
Talk of O3 and the kernel (not android specific)
http://unix.stackexchange.com/questions/1597/compiling-gnu-linux-with-o3-optimization
ezterry,thank you very much!
I want to build cm9 kernel using toolchain 4.6.3.
How to replace the default GCC 4.4.3 to 4.6.3 version?
BTW,I use the way -- make bootimage
jxxhwy said:
ezterry,thank you very much!
I want to build cm9 kernel using toolchain 4.6.3.
How to replace the default GCC 4.4.3 to 4.6.3 version?
BTW,I use the way -- make bootimage
Click to expand...
Click to collapse
If you are asking in a cm9 build tree.. its a pain, best is to update the cm kernel makefile to point the build chain temporarily.
If you mean just to compile by hand as described in the op
Once the kernel is compiled find an anykernel update.zip or manually use mkbootimg or fastboot to merge it with the ram disk. Cm9 targets mkbootimg and unpackbootimg (if I'm not mistaken) will build the applications to unpack your current (or the default cm9) boot image and re-create them with your custom kernel built from hand.
Now,I runing script file:
#Let's make sure the environment is clean and ready to compile the kernel
echo "Cleaning house!!"
make mrproper
echo "House cleaned, lets build a kernel!!!"
#
# Lets set the kernel defconfig
echo "defconfig = cyanogenmod_iprj_defconfig"
make ARCH=arm cyanogenmod_iprj_defconfig
#
# Let's build a kernel
echo "Now compiling kernel, go get a soda! "
ARCH=arm CROSS_COMPILE=~/Android/sourcecm9/cm9/toolchain-4.6.3/bin/arm-linux-androideabi- make zImage -j4
#
if [ -f arch/arm/boot/zImage ]; then
echo "Plague has been compiled!!! You can find it in arch/arm/boot/zImage"
else
echo "Kernel did not compile, please check for errors!!"
fi
but,I got some error output:
/home/xxx/cm9/toolchain-4.6.3/bin/arm-linux-androideabi-ld: cannot find usr/initramfs_data.o: No such file or directory
thanks again!!!
I think that means there is an issue with your config..
Most android kernels require initramfs, but don't specify a file, as its provided by the bootloader.. However in your case it is trying to embed it into the kernel.
Sent from my A500 using Tapatalk 2
ezterry said:
I think that means there is an issue with your config..
Most android kernels require initramfs, but don't specify a file, as its provided by the bootloader.. However in your case it is trying to embed it into the kernel.
Sent from my A500 using Tapatalk 2
Click to expand...
Click to collapse
issue has been resolved by myslef.Thanks for your time.
I would like to mess with trying to install my own customized ROM's to my Nexus 7, but the first place to probably start is with being able to build AOSP as-is from source.
As I understand currently, building is only supported on Linux and OS X, but I can easily get Ubuntu 10.04 and re-partition my HDD to give it about 100GB (if that much is even needed).
Looking at:
http://source.android.com/source/initializing.html
I need to choose a branch and setup the Linux environment. I'm a bit confused as to what branch I should choose though. I want the latest source of Android available at the time, so I should pick the master branch? Or since I'm only building for the Nexus 7, should I choose it's device-specific branch instead? Although looking at:
http://source.android.com/source/build-numbers.html
the Nexus 7 is only at android-4.1.1_r1.1, but I could of sworn I heard there was r4 out already.
As for setting up the Linux environment, I hope I can just follow all the commands listed there without any problem.
Proceeding on with:
http://source.android.com/source/downloading.html
It looks like a pretty straightforward process that I'm also hoping can be done successfully if I follow the commands exactly as presented. I don't have a proxy nor the need for a local mirror either.
And then moving onto:
http://source.android.com/source/building-devices.html
Some stuff there I find a little bit confusing. It would seem I have to first get proprietary drivers, which all 4 seem to be placed conveniently at:
https://developers.google.com/android/nexus/drivers#grouper
From there, I imagine I can move the script that's bundled inside to the root of the source folder, run it, and follow the instructions. I don't exactly know what the root of the source folder is, but it would probably be obvious once I did start trying to build this. But once I did find it, I would run (using Nvidia's Graphics driver for the example) sh extract-nvidia-grouper.sh in Terminal, and it would place the right files where they need to be.
I don't understand the make clobber part too well at all; should I run this on the very first build, later builds, or all builds?
And once the source and drivers are all downloaded and available, I should then run lunch full_grouper-userdebug and then finally make -j# (# being some number in accordance with how many cores on my CPU I have). I have a triple-core CPU at 3.5Ghz, and I have the ability to unlock to quad-core at 3.3Ghz (but prefer to stay on triple). Should I just run -j32? Also will this build the Kernel as well, or will I have to get the source for that and compile it separately?
And once the build completes, my plan from there was to just go back to Windows and flash it. And if I managed to get it to flash and boot properly, I assume I would of succeeded with compiling AOSP from source
I noticed that userdebug part on full_grouper-userdebug gives "root access and debuggability". Does this mean it comes with some program like Superuser or SuperSU already installed? Or does this mean I can easily install those?
Perhaps after I get comfortable with the basics of flashing AOSP as-is, I can then try to mess with different types of optimizations, like Linaro and perhaps even messing with many types of optimizations from different kernels like faux123 has done .
I also have a 360kb/s DSL connection, so downloading the entire source the first time will probably take a good while. But once I have the source, I take it I don't have to redownload the entire thing for patches and stuff?
Any and all guidance is welcome
Bump before I go for tonight
Bump
You have a bunch of questions. I will answer some. And while I whole-heartedly support learning to build you don't need to build to flash roms.
The best advice I can give you is to just start building. You have found a bunch of instructions and links, obviously. Go ahead and begin, and tackle problems as they arise.
Environment
Okay...really the hardest part is setting upi the environment, if you don' t know linux. After downloading and installing Java and the SDK, make sure you add them to your path.
Most guides will have adding the path in the directions. But make sure to check that it works! It will be extremely frustrating, and you won't know what is wrong. Go to a random directory, Documents would be good, and enter java -version and then adb devices. If the computer says it cannot find the commands, then your path is the problem.
Make sure to setup udev. It is easy, Google it.
Building
Branch
You want to build from the tags.
Code:
repo init -u https://android.googlesource.com/platform/manifest -b android-4.1.1_r4
For the proprietary blobs, whatever directory you repo sync from (~/android/system or whatever) is the root directory. run the extraction from there.
when the proprietary blobs are extracted, and the source has been downloaded, these are your commands.
Code:
. build/envsetup.sh
lunch
Lunch will return a list of devices, Grouper is the Nexus 7, it is number 4. eng and user-debug do have root access, but SU and SuperSU are more than just root, they manage the root access for your apps as well. You can download them from Play or install them as a flashable-zip.
Choose 4 and then
Code:
make otapackage
don't worry about the -j# part. Your machine almost definitley cannot handle -j32. It is -j4 by default, that should be fine for your cpu.
If you want to enable faster builds, you can enter
ENABLE_CCACHE=1
before make otapackage, but it will take up a lot of space on your hd. Your subsequent builds will use some thing from your intial build instead of rebuilding them each time (kernel and other things). So even if you repo sync, some changes won't be reflected in your later builds. For instance, if you do not clean your prebuilts and build system, your build date in the build.prop will always stay the same as the first build.
The way you clear the build directory and make new everything is with make clean or make clobber. You can run it before any build, but the build will take much much longer than one that uses prebuilts. Non-clobbered and with ccache enabled are the fastest of all. But subsequent builds are pretty fast even without ccache.
When you want to update your source, you can just go to your root dir and repo sync. It will only update your source, it won't take nearly as long.
Okay, I answered more than I intended. There are a million guides that show you every step in the process.
Don't ask anymore generic worry questions...you're ready. You understand more than most people do before their first build before I even posted. Get started and if you run into problems, search. If you can't find the answer, then come back and ask us.
Good luck. it is easy, and very satisfying.
I finally got around to installing a Virtual Machine, and Ubuntu 10.04 After doing that, I fully updated Ubuntu, installed VMWare Tools, and then proceeded to start trying to acquire the AOSP source.
Getting sun-java-6 was a bit tricky, but not too hard (I ran the commands exactly as listed on the site, but the package didn't exist; had to get it from somewhere else). After that, I proceeded to do everything else, except CCache (I didn't know what .bashrc was, but I'll look further into this with future AOSP builds).
I then made the folder, did repo sync, and I'm now acquiring the source now from android-4.1.1_r4. As a quick question, does it matter whether I choose to build from android-4.1.1_r4, or master? Would master be more up-to-date?
espionage724 said:
I finally got around to installing a Virtual Machine, and Ubuntu 10.04 After doing that, I fully updated Ubuntu, installed VMWare Tools, and then proceeded to start trying to acquire the AOSP source.
Getting sun-java-6 was a bit tricky, but not too hard (I ran the commands exactly as listed on the site, but the package didn't exist; had to get it from somewhere else). After that, I proceeded to do everything else, except CCache (I didn't know what .bashrc was, but I'll look further into this with future AOSP builds).
I then made the folder, did repo sync, and I'm now acquiring the source now from android-4.1.1_r4. As a quick question, does it matter whether I choose to build from android-4.1.1_r4, or master? Would master be more up-to-date?
Click to expand...
Click to collapse
Sorry for late answer, no, use the r4 branch as it is more up to date. Also, make clobber every time isn't needed but you should as it remove then entire out folder (wich is where compiled stuff go) and this make sure you rebuild a clean thing.
Building CyanogenMod 10
Dunno if this is of any interest, but I have a thread started with a complete walkthrough for building CyanogenMod10 for Nexus 7.
Most of the info is the same, and there are some tips in the comments as well.
espionage724 said:
I would like to mess with trying to install my own customized ROM's to my Nexus 7, but the first place to probably start is with being able to build AOSP as-is from source.
Click to expand...
Click to collapse
So, how did you get on? I've been following the same path I think - repo sync the source and follow Google's own tutorial on compiling Android but with the added step of incorporating the binary drivers for the grouper.
I've built the .img files using make -j8, that all works, fastboot flash worked, but I get no video out when booting up using the new OS. I can ADB into the Nexus and it's certainly booted and working okay apart from, I'm guessing, the missing binary drivers.
I've used each of the 5 binary driver scripts to populate the "vendor" directory in the root of the downloaded source before compiling from scratch, but perhaps I've missed a step, so I'm curious as to whether you've got a fully working AOSP+binary driver compile working.
(By the way, my build environment was Ubuntu 12.04 64bit, SDK r20.0.3, Android 4.1.1 (JRO03R) source, Sun Java 1.6, and it all seems to work well using 8 threads on a Core i5 2500K + 4GB RAM).
Edit:
I re-ran the binary extraction, did a make clean; make clobber, and re-compiled - and now video works. Everything works now apart from the compass, camera and rotation sensor. I also tried compiling CyanogenMod from source, too, and had the exact same three problems. Everything works, and works well, apart from camera, compass and rotation sensor. All of which work in the stock Google ROM. Weird.
OK, So I've just compiled an OTA update package from AOSP source... my question is this:
I already have unlocked the bootloader on my wife's Nexus 7, installed Clockworkmod, rooted it, installed busybox, etc, manually on the stock 4.2 update I downloaded from Google on the device when it asked me to upgrade.
Is the otapackage I just compiled going to replace my custom recovery if I flash it as is? I've looked, and it has a "recovery" folder in the .zip, whereas any of the custom ROMs I have downloaded for my phone do not. Do I simply delete this recovery folder, and flash away? Do I need to edit the updater-script? I'm still trying to read and learn about this, but I haven't gotten a good answer from google or searching this site for my specific problem... maybe I'm wording my searches incorrectly.
I would just rather not have to go back and reinstall Clockworkmod... I know that if I want to have busybox, SuperSU, and other apps installed when I flash I'm going to have to add them to the zip and resign... I just don't want to mess my recovery. And being that this is my wife's tab (and not mine to play with, as she pointed out ) I don't want her to get the impression that I'm having to "fix" something I "broke" lol.
hallowed.mh said:
OK, So I've just compiled an OTA update package from AOSP source... my question is this:
I already have unlocked the bootloader on my wife's Nexus 7, installed Clockworkmod, rooted it, installed busybox, etc, manually on the stock 4.2 update I downloaded from Google on the device when it asked me to upgrade.
Is the otapackage I just compiled going to replace my custom recovery if I flash it as is? I've looked, and it has a "recovery" folder in the .zip, whereas any of the custom ROMs I have downloaded for my phone do not. Do I simply delete this recovery folder, and flash away? Do I need to edit the updater-script? I'm still trying to read and learn about this, but I haven't gotten a good answer from google or searching this site for my specific problem... maybe I'm wording my searches incorrectly.
I would just rather not have to go back and reinstall Clockworkmod... I know that if I want to have busybox, SuperSU, and other apps installed when I flash I'm going to have to add them to the zip and resign... I just don't want to mess my recovery. And being that this is my wife's tab (and not mine to play with, as she pointed out ) I don't want her to get the impression that I'm having to "fix" something I "broke" lol.
Click to expand...
Click to collapse
Sorry if a bit late, but here are some answers:
yes, the rom will replace your recovery. but if you delete the recovery folder and delete every line containing the word "recovery" in the updater-script, you should be good to go.
And if you accidentally remove the recovery, you can always flash it back very easily using: "fastboot flash recovery [filename.img]" (your n7 has to be in the bootloader)
And again, yes, you will have to put the extra apps into the zip and update the updater-script to install them too.
Also, you will need the gapps package if you want to use the play store and other google apps.
Hope this helped
Nexus 7 3G does not boot after flashing AOSP
Hi,
I followed the steps provided on source.android.com to build and flash the AOSP for Nexus 7 3G Tilapia. After successful flash, the device does not show anything after Google logo. Please help me out.
Thanks,
Veeren
Compile with ccache makes build time extremely fast.
How to do:
_Open a terminal
_Install ccache:
sudo apt-get install ccache
_Open .bashrc:
sudo gedit ~/.bashrc
_Add these lines:
#ccache
export USE_CCACHE=1
_Save and exit
_Sync source code
_After source synced, run in same terminal (in root directory of your source):
prebuilts/misc/linux-x86/ccache/ccache -M 20G (20G is the size in giga of space allocated for ccache, change it as you want)
_Start building
How to see if ccache works:
_Open another terminal in the root directory of your source and type:
watch -n1 -d prebuilts/misc/linux-x86/ccache/ccache -s
First build using ccache may be a little much longer but the others will be faster...
veerndra said:
Hi,
I followed the steps provided on source.android.com to build and flash the AOSP for Nexus 7 3G Tilapia. After successful flash, the device does not show anything after Google logo. Please help me out.
Thanks,
Veeren
Click to expand...
Click to collapse
Did you pull the proprietary files for your nexus and include them in the build? I believe things like your video drivers are included in there, so if those are missing....
I think the prop files are available for download from Google on source.android.com... If not, they tell you how to use an included script to pull them via adb. I can't remember... It's been a while since I built vanilla AOSP.
Sent from my Inspire 4G using xda app-developers app
Modifying stock AOSP
I have built AOSP following the Google tutorial.
I am compiling using the master branch and
Code:
aosp_grouper-userdebug
.
I have downloaded and extracted the appropriate proprietary binaries.
I am modifying two files in the source tree (see attachments; search for "// MODIFICATION ADDED HERE" to find my changes). Will these changes work? I am using Eclipse, set up in the exact way the tutorial explains, and I am not receiving any new errors.
When I compile the source using the following commands
Code:
$ . build/envsetup.sh
$ lunch aosp_grouper-userdebug
$ make fastboot adb
and flash it to my device with
Code:
$ fastboot -w flashall
BEFORE my modifications, it works just fine. The android-info.txt file and all the image files are produced properly.
However, AFTER adding the modifications, the build completes with no errors, but android-info.txt and all image files are no longer produced.
Why am I experiencing these problems? What can I do to make it work the way I want?
P.S. YES, I am aware that my modifications are not secure; these are for my own purposes, not for a public build.