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 *ptrdiff_ctype;
   9 extern struct symbol *intptr_ctype;
  10 extern struct symbol *uintptr_ctype;
  11 extern struct symbol *intmax_ctype;
  12 extern struct symbol *uintmax_ctype;
  13 extern struct symbol *int64_ctype;
  14 extern struct symbol *uint64_ctype;
  15 extern struct symbol *int32_ctype;
  16 extern struct symbol *uint32_ctype;
  17 extern struct symbol *wchar_ctype;
  18 extern struct symbol *wint_ctype;
  19 extern struct symbol *least8_ctype;
  20 extern struct symbol *uleast8_ctype;
  21 extern struct symbol *least16_ctype;
  22 extern struct symbol *uleast16_ctype;
  23 extern struct symbol *least32_ctype;
  24 extern struct symbol *uleast32_ctype;
  25 extern struct symbol *least64_ctype;
  26 extern struct symbol *uleast64_ctype;
  27 extern struct symbol *fast8_ctype;
  28 extern struct symbol *ufast8_ctype;
  29 extern struct symbol *fast16_ctype;
  30 extern struct symbol *ufast16_ctype;
  31 extern struct symbol *fast32_ctype;
  32 extern struct symbol *ufast32_ctype;
  33 extern struct symbol *fast64_ctype;
  34 extern struct symbol *ufast64_ctype;
  35 extern struct symbol *sig_atomic_ctype;
  36
  37 /*
  38  * For "__attribute__((aligned))"
  39  */
  40 extern int max_alignment;
  41
  42 /*
  43  * Integer data types
  44  */
  45 extern int bits_in_bool;
  46 extern int bits_in_char;
  47 extern int bits_in_short;
  48 extern int bits_in_int;
  49 extern int bits_in_long;
  50 extern int bits_in_longlong;
  51 extern int bits_in_longlonglong;
  52
  53 extern int max_int_alignment;
  54
  55 /*
  56  * Floating point data types
  57  */
  58 extern int bits_in_float;
  59 extern int bits_in_double;
  60 extern int bits_in_longdouble;
  61
  62 extern int max_fp_alignment;
  63
  64 /*
  65  * Pointer data type
  66  */
  67 extern int bits_in_pointer;
  68 extern int pointer_alignment;
  69
  70 /*
  71  * Enum data types
  72  */
  73 extern int bits_in_enum;
  74 extern int enum_alignment;
  75
  76 struct asm_operand;
  77 struct builtin_fn;
  78
  79 struct target {
  80         enum machine    mach;
  81         enum bitness    bitness;
  82         unsigned int    big_endian:1;
  83         unsigned int    unsigned_char:1;
  84         unsigned int    size_t_long:1;
  85         unsigned int    has_int128:1;
  86         unsigned long   flags;
  87
  88         struct symbol   *wchar;
  89         struct symbol   *wint;
  90
  91         unsigned int    bits_in_longdouble;
  92         unsigned int    max_fp_alignment;
  93
  94         const struct target *target_32bit;
  95         const struct target *target_x32bit;
  96         const struct target *target_64bit;
  97
  98         const struct builtin_fn *builtins;
  99
 100         void (*init)(const struct target *self);
 101         void (*parse_march)(const char *arg);
 102         void (*predefine)(const struct target *self);
 103         const char *(*asm_constraint)(struct asm_operand *op, int c, const char *str);
 104 };
 105
 106 extern const struct target target_default;
 107 extern const struct target target_alpha;
 108 extern const struct target target_arm;
 109 extern const struct target target_arm64;
 110 extern const struct target target_bfin;
 111 extern const struct target target_h8300;
 112 extern const struct target target_m68k;
 113 extern const struct target target_microblaze;
 114 extern const struct target target_mips32;
 115 extern const struct target target_mips64;
 116 extern const struct target target_nds32;
 117 extern const struct target target_nios2;
 118 extern const struct target target_openrisc;
 119 extern const struct target target_ppc32;
 120 extern const struct target target_ppc64;
 121 extern const struct target target_riscv32;
 122 extern const struct target target_riscv64;
 123 extern const struct target target_s390;
 124 extern const struct target target_s390x;
 125 extern const struct target target_sh;
 126 extern const struct target target_sparc32;
 127 extern const struct target target_sparc64;
 128 extern const struct target target_i386;
 129 extern const struct target target_x86_64;
 130 extern const struct target target_xtensa;
 131
 132 /* target.c */
 133 extern const struct target *arch_target;
 134
 135 enum machine target_parse(const char *name);
 136 void target_os(const char *name);
 137 void target_config(enum machine mach);
 138 void target_init(void);
 139
 140 /*
 141  * Helper functions for converting bits to bytes and vice versa.
 142  */
 143
 144 static inline int bits_to_bytes(int bits)
 145 {
 146         return bits >= 0 ? (bits + bits_in_char - 1) / bits_in_char : -1;
 147 }
 148
 149 static inline int bytes_to_bits(int bytes)
 150 {
 151         return bytes * bits_in_char;
 152 }
 153
 154 static inline unsigned long array_element_offset(unsigned long base_bits, int idx)
 155 {
 156         int fragment = base_bits % bits_in_char;
 157         if (fragment)
 158                 base_bits += bits_in_char - fragment;
 159         return base_bits * idx;
 160 }
 161
 162 #endif