Reconstructing a Java or Python Application

Prerequisites

• You have logged in to the Kunpeng DevKit.
• The Development Assistant has been installed.

Procedure

1. Click in the shortcut menu bar on the left pane or click next to Development Assistant. The Kunpeng Application Projects page is displayed. See Figure 1.
   Figure 1 Kunpeng Application Projects
   
2. Click Secure Computing Application. The Secure Computing Application page is displayed. See Figure 2.
   Figure 2 Secure Computing Application
   
3. Click Java/Python Application. On the left pane of the displayed page, select Java/Python application reconstruction for Task Type, select Application source code or Software package for Analysis Type, and configure other parameters as required.
   Figure 3 Analyze C/C++ Source Code deselected
   
   Figure 4 Analyze C/C++ Source Code selected
   
   Figure 5 Software package
   

   Table 1 Parameter settings (1)

   Parameter	Description
   Task Type	Task type, which can be: Project creation Java/Python application reconstruction
   Analysis Type	Analysis type, which can be: Application source code NOTE: If you select Analyze C/C++ Source Code, the C/C++ source code will be analyzed. You need to select a build tool and enter the compile command. Software package
   Source File Path	Path of the source file.
   Build Tool	Build tool, which can be: make cmake automake Currently, only GCC 7.3.0 is supported.
   Compile Command	Commands for compiling files.
   Software Package	Upload the software package to be analyzed.
   (Optional) Signature Private Key	Import the signature private key.
   (Optional) Signature Certificate	Import the signature certificate.
   (Optional) Compilation Output Directory	Stores compiled binary files.

4. Click Analyze. A dialog box is displayed indicating that an analysis for application reconstruction is in progress.
   Figure 6 Analyzing for application reconstruction...
   
5. After the analysis is complete, the Analysis Report on Java/Python Application Reconstruction page is displayed. See Figure 7 and Figure 8. The application reconstruction analysis report varies according to analysis types. For example, the source file reconstruction analysis report displays the dependency files and source files to be ported. You can perform the porting based on your requirements. In addition, you can download reports (.csv and .html) and view applications and recommended code on the report page.
   Figure 7 Source file reconstruction analysis report
   
   Figure 8 Software package reconstruction analysis report
   

   Table 2 Parameters in a source file reconstruction analysis report

   Parameter	Description
   Dependency file statistics	Displays statistics on the number of dependency files to be ported, source files to be ported, and the code lines to be modified.
   Dependency Files to Be Ported	Displays SO files including dynamic library files, static library files, software packages, and executable files. You can perform the porting according to the suggestions. For details, see Instructions on Using the Confidential OS SDK.
   Source Files to Be Ported	Displays the total number of source files to be ported and the number of code lines to be modified. You can click View Suggested Source Code in the Operation column to view the suggestions. The file types include C/C++ source file, makefile, Python, Java and ASM file. You can filter specific file types to view.

   Table 3 Parameters in a software package reconstruction analysis report

   Parameter	Description
   Dependency File Statistics	Displays statistics on the number of dependency files to be ported, compatible source files, incompatible source files, and incompatible POSIX interfaces.
   Dependency Files to Be Ported	Displays SO files including dynamic library files, static library files, software packages, and executable files. The architecture types include x86_64 or AArch64. NOTE: If the analysis result shows that a dependency file is compatible, proceed based on Instructions on Using the Confidential OS SDK. If the analysis result shows that a dependency file is incompatible, proceed based on Functions Not Supported by the TEE.

6. Click Task Configuration on the report page to view the task configuration information.
   Figure 9 Viewing configuration information