wz_mini_hacks/documentation/developer_environment.md

build

two environments:

atomcam tools (first)

git clone https://github.com/mnakada/atomcam_tools

cd atomcam_tools

make

then wait a long time for the development environment to compile and complete.

After its complete, run docker-compose up -d to start the docker instance.

To resume the instance, get the container ID from docker ps, and use docker exec -it <container_Id> /bin/bash

the following is translated from: https://github.com/mnakada/atomcam_tools/blob/71a1214f83a92704221cedcf5101e12ba40f2f38/build.md?plain=1#L200

Docker environment

In the Docker environment, / src is mapped to atomcam_tools /.

Below, basically the commands in Docker are executed from the following Directory.

root@ac0375635c01: / atomtools # cd / atomtools / build / buildroot -2016.02

rootfs uses gcc in Docker in a glibc environment. Gcc is also generated during build. gcc prefix is ** / atomtools / build / buildroot-2016.02 / output / host / usr / bin / mipsel-ingenic-linux-gnu-** is.

ATOM Cam's original system camera app iCamera_app is built in the uClibc environment.

Therefore, uClibc environment is required to build libcallback.so for hack of iCamera_app, so it is cloned separately. ** / atomtools / build / mips-gcc472-glibc216-64bit / bin / mips-linux-uclibc-gnu-** using.

How to build when making various changes

When changing the config of initramfs and kernel

root @ ac0375635c01: / atomtools # make linux-rebuild
root@ac0375635c01: / atomtools # cp output / images / uImage.lzma /src

Will be built with and copied to atomcam_tools /.

---

If you modify the files in rootfs or the menuconfig of busybox

root@ac0375635c01: / atomtools # make
root@ac0375635c01: / atomtools # cp output / images / rootfs.ext2 /src

Will be built with and copied to atomcam_tools /.

Copy it to the SD Card with the names factory_t31_ZMC6tiIDQN and rootfs_hack.ext2 respectively.

---

If you change the package included in rootfs

root @ ac0375635c01: / atomtools # make menuconfig
root @ ac0375635c01: / atomtools # make

Will build rootfs.

---

For individual package rebuilds

root @ ac0375635c01: / atomtools # make < package > -rebuild

---

When changing settings such as busybox commands

root @ ac0375635c01: / atomtools # make busybox-menuconfig
root @ ac0375635c01: / atomtools # make

Will build rootfs.

---

When changing kernel settings

root @ ac0375635c01: / atomtools # make linux-menuconfig
root @ ac0375635c01: / atomtools # make linux-rebuild

Will generate uImage.lzma.

---

buildroot (second)

download https://buildroot.org/downloads/buildroot-2022.05.tar.xz

run make menuconfig

options should be:

• Target Options:

  • Target Architecture
    • MIPS (little endian)
  • Target Architecture Variant
    • Generic MIPS32R2
  • FP Mode
    • 32

• Build Options:

  • Strip Target Binaries [*]
  • Libraries
    • static only ( you can do dynamic if you like, just remember you have to copy ALL the program's required libararies to the device! )

• Toolchain

  • C library:
    • musl (you can also use uClibc-ng if you prefer)
    • Kernel Headers
      • Manually Specified Linux Version
        • 3.10.98
    • Custom Kernel Headers Series
      • 3.10.x
    • Binutils Version
      • 2.36.1
    • GCC Compiler Version
      • gcc 9.x
    • Enable C++ Support [*]
    • Enable compiler link-time-optimization support [*]

• Target packages

  • Whatever packages you want!

Then select exit, save changes, and then run make and your compiled programs should be in output/target/usr/