vm/errors.h

   1 /* Runtime errors */
   2 typedef enum
   3 {
   4         ERROR_EXPIRED = 0,
   5         ERROR_IO,
   6         ERROR_NOT_IMPLEMENTED,
   7         ERROR_TYPE,
   8         ERROR_DIVIDE_BY_ZERO,
   9         ERROR_SIGNAL,
  10         ERROR_ARRAY_SIZE,
  11         ERROR_C_STRING,
  12         ERROR_FFI,
  13         ERROR_HEAP_SCAN,
  14         ERROR_UNDEFINED_SYMBOL,
  15         ERROR_DS_UNDERFLOW,
  16         ERROR_DS_OVERFLOW,
  17         ERROR_RS_UNDERFLOW,
  18         ERROR_RS_OVERFLOW,
  19         ERROR_MEMORY,
  20 } F_ERRORTYPE;
  21
  22 void out_of_memory(void);
  23 void fatal_error(char* msg, CELL tagged);
  24 void critical_error(char* msg, CELL tagged);
  25 void primitive_die(void);
  26
  27 void throw_error(CELL error, F_STACK_FRAME *native_stack);
  28 void general_error(F_ERRORTYPE error, CELL arg1, CELL arg2, F_STACK_FRAME *native_stack);
  29 void divide_by_zero_error(F_STACK_FRAME *native_stack);
  30 void memory_protection_error(CELL addr, F_STACK_FRAME *native_stack);
  31 void signal_error(int signal, F_STACK_FRAME *native_stack);
  32 void type_error(CELL type, CELL tagged);
  33 void not_implemented_error(void);
  34
  35 void primitive_throw(void);
  36 void primitive_call_clear(void);
  37
  38 INLINE void type_check(CELL type, CELL tagged)
  39 {
  40         if(type_of(tagged) != type) type_error(type,tagged);
  41 }
  42
  43 #define DEFINE_UNTAG(type,check,name) \
  44         INLINE type *untag_##name(CELL obj) \
  45         { \
  46                 type_check(check,obj); \
  47                 return untag_object(obj); \
  48         }
  49
  50 /* Global variables used to pass fault handler state from signal handler to
  51 user-space */
  52 CELL signal_number;
  53 CELL signal_fault_addr;
  54 void *signal_callstack_top;
  55
  56 void memory_signal_handler_impl(void);
  57 void divide_by_zero_signal_handler_impl(void);
  58 void misc_signal_handler_impl(void);
  59
  60 void primitive_unimplemented(void);