Kernel mode driver assembly

ghz 8months ago ⋅ 77 views

I am trying to call inline assembly from a kernel mode Windows driver, but I keeps giving me a linker error and I can't seem to fix it.

I recreated the error in another very small project:

https://github.com/Jules707/DriverAssembly.

This is the error I am getting:

error-image

How can I fix it?

Answers

The linker error you're encountering indicates that the linker cannot find the symbol _mainCRTStartup during the linking process. This symbol is typically associated with the entry point for executable programs in the C runtime library.

Since you're working with a kernel-mode driver project, you won't have a main function like in user-mode applications. Kernel-mode drivers have a different entry point, typically DriverEntry.

To resolve the linker error, you should ensure that your driver project is configured correctly and that it includes the appropriate entry point for a driver (DriverEntry).

Here are the steps you can take to fix this issue:

  1. Ensure DriverEntry is defined: Make sure your driver project has a DriverEntry function defined. This function serves as the entry point for your driver.

  2. Check project settings: Verify that your project settings are configured properly for kernel-mode driver development. This includes ensuring that you're linking against the correct libraries and that the entry point is set correctly.

  3. Verify build configuration: Double-check that your build configuration targets the correct platform (e.g., x64) and that it's configured for kernel-mode driver development.

  4. Review code and build process: Review your code and the build process to ensure that there are no inconsistencies or errors that could be causing the linker error.

  5. Inspect linker settings: If necessary, inspect the linker settings in your project to ensure that everything is configured correctly. Pay attention to any additional libraries or dependencies that may be required for kernel-mode driver development.

After ensuring that your project is set up correctly for kernel-mode driver development and that the DriverEntry function is properly defined, rebuild your project and verify that the linker error is resolved.

If you're still encountering issues, you may need to provide more details about your project setup, code, and build configuration for further assistance.

#c