target.h

   1 #ifndef TARGET_H
   2 #define TARGET_H
   3
   4 #include "machine.h"
   5
   6 extern struct symbol *size_t_ctype;
   7 extern struct symbol *ssize_t_ctype;
   8 extern struct symbol *intmax_ctype;
   9 extern struct symbol *uintmax_ctype;
  10 extern struct symbol *int64_ctype;
  11 extern struct symbol *uint64_ctype;
  12 extern struct symbol *int32_ctype;
  13 extern struct symbol *uint32_ctype;
  14 extern struct symbol *wchar_ctype;
  15 extern struct symbol *wint_ctype;
  16
  17 /*
  18  * For "__attribute__((aligned))"
  19  */
  20 extern int max_alignment;
  21
  22 /*
  23  * Integer data types
  24  */
  25 extern int bits_in_bool;
  26 extern int bits_in_char;
  27 extern int bits_in_short;
  28 extern int bits_in_int;
  29 extern int bits_in_long;
  30 extern int bits_in_longlong;
  31 extern int bits_in_longlonglong;
  32
  33 extern int max_int_alignment;
  34
  35 /*
  36  * Floating point data types
  37  */
  38 extern int bits_in_float;
  39 extern int bits_in_double;
  40 extern int bits_in_longdouble;
  41
  42 extern int max_fp_alignment;
  43
  44 /*
  45  * Pointer data type
  46  */
  47 extern int bits_in_pointer;
  48 extern int pointer_alignment;
  49
  50 /*
  51  * Enum data types
  52  */
  53 extern int bits_in_enum;
  54 extern int enum_alignment;
  55
  56 struct asm_operand;
  57 struct builtin_fn;
  58
  59 struct target {
  60         enum machine    mach;
  61         enum bitness    bitness;
  62         unsigned int    big_endian:1;
  63         unsigned int    unsigned_char:1;
  64         unsigned int    size_t_long:1;
  65         unsigned int    has_int128:1;
  66
  67         struct symbol   *wchar;
  68         struct symbol   *wint;
  69
  70         unsigned int    bits_in_longdouble;
  71         unsigned int    max_fp_alignment;
  72
  73         const struct target *target_32bit;
  74         const struct target *target_64bit;
  75
  76         const struct builtin_fn *builtins;
  77
  78         void (*init)(const struct target *self);
  79         void (*predefine)(const struct target *self);
  80         const char *(*asm_constraint)(struct asm_operand *op, int c, const char *str);
  81 };
  82
  83 extern const struct target target_default;
  84 extern const struct target target_alpha;
  85 extern const struct target target_arm;
  86 extern const struct target target_arm64;
  87 extern const struct target target_bfin;
  88 extern const struct target target_m68k;
  89 extern const struct target target_microblaze;
  90 extern const struct target target_mips32;
  91 extern const struct target target_mips64;
  92 extern const struct target target_nios2;
  93 extern const struct target target_ppc32;
  94 extern const struct target target_ppc64;
  95 extern const struct target target_riscv32;
  96 extern const struct target target_riscv64;
  97 extern const struct target target_s390;
  98 extern const struct target target_s390x;
  99 extern const struct target target_sparc32;
 100 extern const struct target target_sparc64;
 101 extern const struct target target_i386;
 102 extern const struct target target_x86_64;
 103
 104 /* target.c */
 105 extern const struct target *arch_target;
 106
 107 enum machine target_parse(const char *name);
 108 void target_config(enum machine mach);
 109 void target_init(void);
 110
 111 /*
 112  * Helper functions for converting bits to bytes and vice versa.
 113  */
 114
 115 static inline int bits_to_bytes(int bits)
 116 {
 117         return bits >= 0 ? (bits + bits_in_char - 1) / bits_in_char : -1;
 118 }
 119
 120 static inline int bytes_to_bits(int bytes)
 121 {
 122         return bytes * bits_in_char;
 123 }
 124
 125 static inline unsigned long array_element_offset(unsigned long base_bits, int idx)
 126 {
 127         int fragment = base_bits % bits_in_char;
 128         if (fragment)
 129                 base_bits += bits_in_char - fragment;
 130         return base_bits * idx;
 131 }
 132
 133 #endif