vm/errors.hpp

   1 namespace factor
   2 {
   3
   4 /* Runtime errors */
   5 enum vm_error_type
   6 {
   7         ERROR_EXPIRED = 0,
   8         ERROR_IO,
   9         ERROR_NOT_IMPLEMENTED,
  10         ERROR_TYPE,
  11         ERROR_DIVIDE_BY_ZERO,
  12         ERROR_SIGNAL,
  13         ERROR_ARRAY_SIZE,
  14         ERROR_C_STRING,
  15         ERROR_FFI,
  16         ERROR_HEAP_SCAN,
  17         ERROR_UNDEFINED_SYMBOL,
  18         ERROR_DS_UNDERFLOW,
  19         ERROR_DS_OVERFLOW,
  20         ERROR_RS_UNDERFLOW,
  21         ERROR_RS_OVERFLOW,
  22         ERROR_MEMORY,
  23         ERROR_FP_TRAP,
  24 };
  25
  26 PRIMITIVE(die);
  27 PRIMITIVE(call_clear);
  28 PRIMITIVE(unimplemented);
  29
  30 /* Global variables used to pass fault handler state from signal handler to
  31 user-space */
  32 extern cell signal_number;
  33 extern cell signal_fault_addr;
  34 extern unsigned int signal_fpu_status;
  35 extern stack_frame *signal_callstack_top;
  36
  37 void memory_signal_handler_impl();
  38 void fp_signal_handler_impl();
  39 void misc_signal_handler_impl();
  40
  41 }