target.h

   1 #ifndef TARGET_H
   2 #define TARGET_H
   3
   4 extern struct symbol *size_t_ctype;
   5 extern struct symbol *ssize_t_ctype;
   6
   7 /*
   8  * For "__attribute__((aligned))"
   9  */
  10 extern int max_alignment;
  11
  12 /*
  13  * Integer data types
  14  */
  15 extern int bits_in_bool;
  16 extern int bits_in_char;
  17 extern int bits_in_short;
  18 extern int bits_in_int;
  19 extern int bits_in_long;
  20 extern int bits_in_longlong;
  21 extern int bits_in_longlonglong;
  22
  23 extern int max_int_alignment;
  24
  25 /*
  26  * Floating point data types
  27  */
  28 extern int bits_in_float;
  29 extern int bits_in_double;
  30 extern int bits_in_longdouble;
  31
  32 extern int max_fp_alignment;
  33
  34 /*
  35  * Pointer data type
  36  */
  37 extern int bits_in_pointer;
  38 extern int pointer_alignment;
  39
  40 /*
  41  * Enum data types
  42  */
  43 extern int bits_in_enum;
  44 extern int enum_alignment;
  45
  46 /*
  47  * Helper functions for converting bits to bytes and vice versa.
  48  */
  49
  50 static inline int bits_to_bytes(int bits)
  51 {
  52         return bits >= 0 ? (bits + bits_in_char - 1) / bits_in_char : -1;
  53 }
  54
  55 static inline int bytes_to_bits(int bytes)
  56 {
  57         return bytes * bits_in_char;
  58 }
  59
  60 static inline unsigned long array_element_offset(unsigned long base_bits, int idx)
  61 {
  62         int fragment = base_bits % bits_in_char;
  63         if (fragment)
  64                 base_bits += bits_in_char - fragment;
  65         return base_bits * idx;
  66 }
  67
  68 #endif