ExceptionHandler

Type Alias ExceptionHandler 

Source
pub type ExceptionHandler = fn(exception_number: u64, exception_info: *mut ExceptionInfo, context: *mut Context, page_fault_address: u64) -> bool;
Expand description

Exception handler function type.

Handlers receive mutable pointers to the exception information and CPU context, allowing direct access and modification of exception state.

§Parameters

  • exception_number - Exception vector number (0-30)
  • exception_info - Mutable pointer to exception information (instruction pointer, error code, etc.)
  • context - Mutable pointer to saved CPU context (registers, FPU state, etc.)
  • page_fault_address - Page fault address (only valid for page fault exceptions)

§Returns

  • true - Suppress the default abort behavior and continue execution
  • false - Allow the default abort to occur

§Safety

This function type uses raw mutable pointers. Handlers must ensure:

  • Pointers are valid for the duration of the handler
  • Any modifications to exception state maintain system integrity
  • Modified values are valid for CPU state (e.g., valid instruction pointers, aligned stack pointers)