Build mtk6765 compilation environment

Development software

It is recommended to build virtual machines , Reinstallation is frequent during my development
1.VMware-workstation-full-16.1.0-17198959
Use VMware15 It's fine too , But pay attention to your computer windows edition , the latest version windows10 Can install VMware15, But the blue screen will crash when running the virtual machine system .
2.ubuntu-16.04.7-desktop-amd64
Need to use ubuntu16 And above , There seems to be a problem below this version
3. System file development kit
I use the **.tar package , Not for the time being , Documents on the official website can be used

Environment building

VMware Set up

1. menu bar – virtual machine – install vmwaretools, If not updated, update

ubuntu Set up

installed Ubuntu Then set it as shown in the following figure
1. Memory , The proposal USES 16g Or bigger , Because the memory required for compilation is large , If the computer configuration is not enough, it is recommended to increase the memory , At present, the test of reducing memory has not been compiled successfully , And it takes a long time
2. processor , Install the computer configuration and make appropriate choices
3. Hard disk , It is suggested to reserve 400g, At present, I have used 300+g
4. network adapter , It is recommended to choose the bridge mode , It can be shared with external networks ip, It's convenient for other ssh Connect for debugging .
5. Enter the options bar , Open shared folder , This folder is located in windows Next , stay windows You also need to open the sharing option , Please find the solution online for details

Recommended tools to install

0. Get into root

[email protected]:~$ sudo passwd lq
[sudo] password for lq:
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
[email protected]:~$ su
Password:
[email protected]:/home/lq#

1.ssh service

[email protected]:/#sudo ps -e |grep ssh
[email protected]:/#                             // No information means it is not installed 
[email protected]:/#sudo apt-get update  // Update the list first 
[email protected]:/#sudo apt-get install openssh-server // Then install the service 
[email protected]:/#sudo ps -e |grep ssh  // Check for installation 
					3933    00：00：00  sshd  // Indicates successful installation 

2.MobaXterm Tools –windows
stay windows Install the tool under , Can pass ssh Connect to linux, And it is convenient to linux Modify the following file , Do not install or use other software , Handle according to personal preferences

3.mingw32 service

[email protected]:/#sudo apt-get install mingw32
Unable to locate package mingw32   // Report errors 
[email protected]:/#sudo gedit /etc/apt/sources.list
// stay sources.list Add... At the end , preservation 
deb http://us.archive.ubuntu.com/ubuntu trusty main universe
[email protected]:/#sudo apt-get update
[email protected]ntu:/#sudo apt-get install mingw32

Compilation steps

1. The file path of the new project , And release the project package to this folder

[email protected]:/home/lq#mkdir Project
...
[email protected]:/home/lq/Project#mkdirMTK6765
...
// stay /mnt/hgfs/vmLinuxstore/6765.tar  Find the file under the shared folder 
// If you cannot find the file and connect hgfs There are no folders 
//1. Check whether the shared folder settings ok
//2. see window Whether to share the shared folder 
//3. newly build hgfs and vmLinuxstore Folder , Generally, shared files will be visible after refreshing 
[email protected]:/home/lq/Project#cd ..
...
[email protected]:/#tar zxvf /mnt/hgfs/vmLinuxstore/6765.tar -C /home/lq/Project/MTK6765

2. Download the compilation tool

[email protected]:/#sudo apt-get update
[email protected]:/#sudo apt-get install -y git gcc lib32stdc++6 gnupg flex bison gperf build-essential zip
[email protected]:/#sudo apt-get install -y curl libc6-dev libncurses5-dev:i386 x11proto-core-dev libx11-dev:i386 libreadline6-dev:i386 g++-multilib mingw32 tofrodos libgl1-mesa-dev python-markdown libxml2-utils xsltproc zlib1g-dev:i386
[email protected]:/#sudo apt-get install libswitch-perl libssl-dev libncurses5 libncurses5-dev
[email protected]:/#sudo apt-get install libxml-sax-expat-incremental-perl
[email protected]:/#sudo cpan install XML::Simple
[email protected]:/#sudo add-apt-repository ppa:openjdk-r/ppa
[email protected]:/#sudo apt-get update
[email protected]:/#sudo apt-get install openjdk-8-jdk

3. Start compilation

// Enter into MTK6765 Under the folder 
[email protected]:/home/lq/Project/MTK6765# source build/envsetup.sh
..
[email protected]:/home/lq/Project/MTK6765# lunch
// There are many types of hardware , I use full_k65v1_64_bsp-userdebug
// So choose 105 Number 
[email protected]:/home/lq/Project/MTK6765# make -j12 2>&1 | tee build.log
//j12 Representatives execute at the same time 12 Thread thread , After enlargement, the compilation speed can be improved , But the requirements for computers are high , General choice 24
// Initial compilation may require 1-12 Hours , Even longer 

4. Compiler error
1.build/core/ninja.mk:148: recipe for target ‘ninja_wrapper’ failed

 stay build/envsetup.sh Add... At the end of the script 
export LC_ALL=C

2.Communication error with Jack server (35)

sudo vi /etc/java-8-openjdk/security/java.security
 lookup ”jdk.tls.disabledAlgorithms=“ Delete TLSv1, TLSv1.1, as follows ：
jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA,

./jack-admin kill-server
./jack-admin start-server

3. The compiler cannot find the corresponding hardware information

//  Basic hardware information needs to be updated 
/home/lq/Project/MTK6765/vendor/mediatek/proprietary/bootable/bootloader/preloader/tools/emigen/MT6765/MemoryDeviceList_MT6765.xls

4.ninja failed with: signal: killed

//  The problem arises , Basically, there is insufficient memory , According to online suggestions , It is better to increase the size of swap space 
free -m   // see swap Partition size 
sudo dd if=/dev/zero of=/var/swap bs=1024 count=2000000 // Set the memory to 2g
sudo mkswap /home/swap
sudo swapon /home/swap
free -m   // Check the modified partition size 

// If it is expanded again on the original basis , Will report a mistake ：
sudo dd if=/dev/zero of=/home/swap bs=1024 count=2048000
dd: failed to open '/home/swap': Text file busy // Error message 
// resolvent ： Need to close first swap, Redistribute , The perform 
sudo swapoff -a

// actually , My compilation requires a large memory , only 2g Not enough use , Set to 4g Can be compiled through , It is speculated that the memory of subsequent devices may have to be expanded