wz_mini_hacks/documentation/developer_environment.md

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2022-06-14 04:10:28 +00:00
# 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](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/`