1# Building Source Code 2 3 4For details about the functions of the OpenHarmony compilation and building module, see [Compilation and Building Guide](../subsystems/subsys-build-all.md). 5 6 7## Prerequisites 8 9- The [required libraries and tools](quickstart-pkg-install-package.md) have been installed. 10 11- The [compilation tools](quickstart-pkg-install-tool.md) have been installed. 12 13- The Hello World program is ready for use. 14 15- The access to the Ubuntu environment is normal. 16 17 18## Procedure 19 20Method 1: using hb for compilation (install [compilation tools](quickstart-pkg-install-tool.md) first) 21 22Go to the root directory of the source code in the Ubuntu environment and perform the following steps: 23 241. Set the build path. 25 26 ``` 27 hb set 28 ``` 29 302. Select the current path. 31 32 ``` 33 . 34 ``` 35 363. Select **rk3568** under **hihope** and press **Enter**. 37 >  **NOTE** 38 > 39 > When adapting the development board to a specific use case, select an appropriate build form factor, that is, **product** settings. For details, see [Build Form Factors](quickstart-appendix-compiledform.md). 40 41 **Figure 1** RK3568 build settings 42 43  44 454. If you are building the source code into a 32-bit system, skip this step. 46 47 If you are building the source code into a 64-bit system, run the following command: 48 49 50 ``` 51 hb build --target-cpu arm64 52 ``` 53 545. Start building. 55 >  **NOTE** 56 > - To build a component (for example, **hello**), run the **hb build -T *targetName*** command. 57 > 58 > - To build a product incrementally, run the **hb build** command. 59 > 60 > - To build a product from the scratch, run the **hb build -f** command. 61 > 62 > This example builds a product from the scratch. 63 64 65 ``` 66 hb build -f 67 ``` 68 696. Check the build result. If "rk3568 build success" is displayed, the building is successful. 70 >  **NOTICE** 71 > 72 > The build result and log files are stored in **out/rk3568**. 73 74Method 2: using the **build.sh** script for compilation 75 76For details, see [Building Source Code Using the build.sh Script](quickstart-pkg-common-build.md). 77
