target.c

   1 #include <stdio.h>
   2
   3 #include "symbol.h"
   4 #include "target.h"
   5 #include "machine.h"
   6
   7 struct symbol *size_t_ctype = &ulong_ctype;
   8 struct symbol *ssize_t_ctype = &long_ctype;
   9 struct symbol *intmax_ctype = &llong_ctype;
  10 struct symbol *uintmax_ctype = &ullong_ctype;
  11 struct symbol *int64_ctype = &long_ctype;
  12 struct symbol *uint64_ctype = &ulong_ctype;
  13 struct symbol *int32_ctype = &int_ctype;
  14 struct symbol *uint32_ctype = &uint_ctype;
  15 struct symbol *wchar_ctype = &int_ctype;
  16 struct symbol *wint_ctype = &uint_ctype;
  17
  18 /*
  19  * For "__attribute__((aligned))"
  20  */
  21 int max_alignment = 16;
  22
  23 /*
  24  * Integer data types
  25  */
  26 int bits_in_bool = 1;
  27 int bits_in_char = 8;
  28 int bits_in_short = 16;
  29 int bits_in_int = 32;
  30 int bits_in_long = 32;
  31 int bits_in_longlong = 64;
  32 int bits_in_longlonglong = 128;
  33
  34 int max_int_alignment = 4;
  35
  36 /*
  37  * Floating point data types
  38  */
  39 int bits_in_float = 32;
  40 int bits_in_double = 64;
  41 int bits_in_longdouble = 128;
  42
  43 int max_fp_alignment = 16;
  44
  45 /*
  46  * Pointer data type
  47  */
  48 int bits_in_pointer = 32;
  49 int pointer_alignment = 4;
  50
  51 /*
  52  * Enum data types
  53  */
  54 int bits_in_enum = 32;
  55 int enum_alignment = 4;
  56
  57
  58 void init_target(void)
  59 {
  60         switch (arch_mach) {
  61         case MACH_X86_64:
  62                 if (arch_m64 == ARCH_LP64)
  63                         break;
  64                 /* fall through */
  65         case MACH_I386:
  66         case MACH_M68K:
  67         case MACH_SPARC32:
  68         case MACH_PPC32:
  69                 wchar_ctype = &long_ctype;
  70                 break;
  71         case MACH_ARM:
  72         case MACH_ARM64:
  73                 wchar_ctype = &uint_ctype;
  74                 break;
  75         default:
  76                 break;
  77         }
  78
  79         switch (arch_mach) {
  80         case MACH_MIPS64:
  81                 if (arch_m64 == ARCH_LP64)
  82                         break;
  83                 /* fall through */
  84         case MACH_M68K:
  85         case MACH_SPARC32:
  86         case MACH_PPC32:
  87         case MACH_MIPS32:
  88         case MACH_RISCV32:
  89                 arch_m64 = ARCH_LP32;
  90                 int32_ctype = &long_ctype;
  91                 uint32_ctype = &ulong_ctype;
  92                 break;
  93         default:
  94                 break;
  95         }
  96
  97         switch (arch_mach) {
  98         case MACH_ARM:
  99         case MACH_MIPS32:
 100         case MACH_S390X:
 101         case MACH_SPARC32:
 102                 bits_in_longdouble = 64;
 103                 max_fp_alignment = 8;
 104                 break;
 105         case MACH_X86_64:
 106                 if (arch_m64 == ARCH_LP64 || arch_m64 == ARCH_X32)
 107                         break;
 108                 /* fall through */
 109         case MACH_I386:
 110         case MACH_M68K:
 111                 bits_in_longdouble = 96;
 112                 max_fp_alignment = 4;
 113                 break;
 114         default:
 115                 break;
 116         }
 117
 118         switch (arch_m64) {
 119         case ARCH_X32:
 120                 max_int_alignment = 8;
 121                 int64_ctype = &llong_ctype;
 122                 uint64_ctype = &ullong_ctype;
 123                 break;
 124         case ARCH_LP32:
 125                 /* default values */
 126                 int64_ctype = &llong_ctype;
 127                 uint64_ctype = &ullong_ctype;
 128                 intmax_ctype = &llong_ctype;
 129                 uintmax_ctype = &ullong_ctype;
 130                 break;
 131         case ARCH_LP64:
 132                 bits_in_long = 64;
 133                 max_int_alignment = 8;
 134                 size_t_ctype = &ulong_ctype;
 135                 ssize_t_ctype = &long_ctype;
 136                 intmax_ctype = &long_ctype;
 137                 uintmax_ctype = &ulong_ctype;
 138                 goto case_64bit_common;
 139         case ARCH_LLP64:
 140                 bits_in_long = 32;
 141                 max_int_alignment = 8;
 142                 size_t_ctype = &ullong_ctype;
 143                 ssize_t_ctype = &llong_ctype;
 144                 int64_ctype = &llong_ctype;
 145                 uint64_ctype = &ullong_ctype;
 146                 goto case_64bit_common;
 147         case_64bit_common:
 148                 bits_in_pointer = 64;
 149                 pointer_alignment = 8;
 150                 break;
 151         }
 152
 153 #if defined(__CYGWIN__)
 154         wchar_ctype = &ushort_ctype;
 155 #endif
 156 #if defined(__FreeBSD__) || defined(__APPLE__)
 157         wint_ctype = &int_ctype;
 158 #endif
 159 #if defined(__APPLE__)
 160         int64_ctype = &llong_ctype;
 161         uint64_ctype = &ullong_ctype;
 162 #endif
 163 }