OnePlus 15 KernelSU Build Issue Analysis

Issue Summary

The user is encountering build errors while attempting to build a kernel for the OnePlus 15 device using KernelSU. The build process fails with multiple errors related to undeclared identifiers and incompatible pointer conversions. Additionally, issues arise when applying patches to the 10_config file with the ksu.patch file, although it is suspected that these patches may not be necessary as SukiSU already includes relevant changes.

Error Analysis

Bazel Build Errors

The errors reported during the Bazel build process indicate several issues in the kernel source code related to KernelSU modules. Key errors include:

  • Undeclared Identifiers: Errors such as error: use of undeclared identifier 'execve_kp' and error: use of undeclared identifier 'vfs_read_kp' suggest that these identifiers are not defined in the included files.
  • Incompatible Pointer Conversions: Errors like error: incompatible pointer to integer conversion passing 'void *' to parameter of type 'unsigned int' point to type mismatches in function calls.

Patching Errors

When applying the ksu.patch file, several hunks fail to patch files such as kernel/Kbuild, kernel/Kconfig, and kernel/allowlist.c. The error messages suggest that the patch may not be compatible with the current kernel version or configuration.

Suggested Solutions

  1. Verify KernelSU and SUSFS Integration:

    • Confirm that KernelSU and SUSFS are properly integrated with the kernel. Ensure that all necessary configurations and patches are correctly applied.

  2. Check for Missing Definitions:

    • Investigate the undeclared identifiers by reviewing the relevant source files and ensuring all required headers and definitions are included.

  3. Review Patch Compatibility:

    • Re-evaluate the necessity of the 10_config patches. If SukiSU already incorporates the necessary changes, the patches may be redundant or incompatible.
    • If patches are necessary, ensure they are compatible with the current kernel version and apply them with the correct -p or --strip option.

  4. Update KernelSU and Kernel:

    • Ensure that the latest versions of KernelSU and the kernel are being used. Compatibility issues might be resolved in newer versions.

  5. Consult Documentation and Community:

    • Review the official KernelSU documentation for any specific instructions or known issues.
    • Seek assistance from the KernelSU community or forums, as others may have encountered and resolved similar issues.

Conclusion

The build errors and patching issues are likely due to misconfiguration or incompatibility with the current kernel and KernelSU setup. By verifying the integration, checking for missing definitions, reviewing patch compatibility, updating software, and consulting community resources, the user should be able to resolve these issues and successfully build the kernel for the OnePlus 15 device.