gdb/testsuite/gdb.base/whatis.c

   1 /* This test program is part of GDB, the GNU debugger.
   2
   3    Copyright 1992-2017 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 /*
  19  *      Test file with lots of different types, for testing the
  20  *      "whatis" command.
  21  */
  22
  23 /*
  24  *      First the basic C types.
  25  */
  26
  27 char            v_char;
  28 signed char     v_signed_char;
  29 unsigned char   v_unsigned_char;
  30
  31 short           v_short;
  32 signed short    v_signed_short;
  33 unsigned short  v_unsigned_short;
  34
  35 int             v_int;
  36 signed int      v_signed_int;
  37 unsigned int    v_unsigned_int;
  38
  39 long            v_long;
  40 signed long     v_signed_long;
  41 unsigned long   v_unsigned_long;
  42
  43 #ifndef NO_LONG_LONG
  44 long long               v_long_long;
  45 signed long long        v_signed_long_long;
  46 unsigned long long      v_unsigned_long_long;
  47 #endif
  48
  49 float           v_float;
  50 double          v_double;
  51
  52 /*
  53  *      Now some derived types, which are arrays, functions-returning,
  54  *      pointers, structures, unions, and enumerations.
  55  */
  56
  57 /**** arrays *******/
  58
  59 char            v_char_array[2];
  60 signed char     v_signed_char_array[2];
  61 unsigned char   v_unsigned_char_array[2];
  62
  63 short           v_short_array[2];
  64 signed short    v_signed_short_array[2];
  65 unsigned short  v_unsigned_short_array[2];
  66
  67 int             v_int_array[2];
  68 signed int      v_signed_int_array[2];
  69 unsigned int    v_unsigned_int_array[2];
  70
  71 long            v_long_array[2];
  72 signed long     v_signed_long_array[2];
  73 unsigned long   v_unsigned_long_array[2];
  74
  75 #ifndef NO_LONG_LONG
  76 long long               v_long_long_array[2];
  77 signed long long        v_signed_long_long_array[2];
  78 unsigned long long      v_unsigned_long_long_array[2];
  79 #endif
  80
  81 float           v_float_array[2];
  82 double          v_double_array[2];
  83
  84 /**** pointers *******/
  85
  86 /* Make sure they still print as pointer to foo even there is a typedef
  87    for that type.  Test this not just for char *, which might be
  88    a special case kludge in GDB (Unix system include files like to define
  89    caddr_t), but for a variety of types.  */
  90 typedef char *char_addr;
  91 char_addr a_char_addr;
  92 typedef unsigned short *ushort_addr;
  93 ushort_addr a_ushort_addr;
  94 typedef signed long *slong_addr;
  95 slong_addr a_slong_addr;
  96 #ifndef NO_LONG_LONG
  97 typedef signed long long *slong_long_addr;
  98 slong_long_addr a_slong_long_addr;
  99 #endif
 100
 101 char            *v_char_pointer;
 102 signed char     *v_signed_char_pointer;
 103 unsigned char   *v_unsigned_char_pointer;
 104
 105 short           *v_short_pointer;
 106 signed short    *v_signed_short_pointer;
 107 unsigned short  *v_unsigned_short_pointer;
 108
 109 int             *v_int_pointer;
 110 signed int      *v_signed_int_pointer;
 111 unsigned int    *v_unsigned_int_pointer;
 112
 113 long            *v_long_pointer;
 114 signed long     *v_signed_long_pointer;
 115 unsigned long   *v_unsigned_long_pointer;
 116
 117 #ifndef NO_LONG_LONG
 118 long long               *v_long_long_pointer;
 119 signed long long        *v_signed_long_long_pointer;
 120 unsigned long long      *v_unsigned_long_long_pointer;
 121 #endif
 122
 123 float           *v_float_pointer;
 124 double          *v_double_pointer;
 125
 126 /**** structs *******/
 127
 128 struct t_struct {
 129     char        v_char_member;
 130     short       v_short_member;
 131     int         v_int_member;
 132     long        v_long_member;
 133 #ifndef NO_LONG_LONG
 134     long long   v_long_long_member;
 135 #endif
 136     float       v_float_member;
 137     double      v_double_member;
 138 } v_struct1, *v_struct_ptr1;
 139
 140 struct {
 141     char        v_char_member;
 142     short       v_short_member;
 143     int         v_int_member;
 144     long        v_long_member;
 145 #ifndef NO_LONG_LONG
 146     long long   v_long_long_member;
 147 #endif
 148     float       v_float_member;
 149     double      v_double_member;
 150 } v_struct2, *v_struct_ptr2;
 151
 152 /**** unions *******/
 153
 154 union t_union {
 155     char        v_char_member;
 156     short       v_short_member;
 157     int         v_int_member;
 158     long        v_long_member;
 159 #ifndef NO_LONG_LONG
 160     long long   v_long_long_member;
 161 #endif
 162     float       v_float_member;
 163     double      v_double_member;
 164 } v_union, *v_union_ptr;
 165
 166 union {
 167     char        v_char_member;
 168     short       v_short_member;
 169     int         v_int_member;
 170     long        v_long_member;
 171 #ifndef NO_LONG_LONG
 172     long long   v_long_long_member;
 173 #endif
 174     float       v_float_member;
 175     double      v_double_member;
 176 } v_union2, *v_union_ptr2;
 177
 178 /*** Functions returning type ********/
 179
 180 char            v_char_func () { return(0); }
 181 signed char     v_signed_char_func () { return (0); }
 182 unsigned char   v_unsigned_char_func () { return (0); }
 183
 184 short           v_short_func () { return (0); }
 185 signed short    v_signed_short_func () { return (0); }
 186 unsigned short  v_unsigned_short_func () { return (0); }
 187
 188 int             v_int_func () { return (0); }
 189 signed int      v_signed_int_func () { return (0); }
 190 unsigned int    v_unsigned_int_func () { return (0); }
 191
 192 long            v_long_func () { return (0); }
 193 signed long     v_signed_long_func () { return (0); }
 194 unsigned long   v_unsigned_long_func () { return (0); }
 195
 196 #ifndef NO_LONG_LONG
 197 long long               v_long_long_func () { return (0); }
 198 signed long long        v_signed_long_long_func () { return (0); }
 199 unsigned long long      v_unsigned_long_long_func () { return (0); }
 200 #endif
 201
 202 float           v_float_func () { return (0.0); }
 203 double          v_double_func () { return (0.0); }
 204
 205 /**** Some misc more complicated things *******/
 206
 207 struct link {
 208         struct link *next;
 209 #ifdef __STDC__
 210         struct link *(*linkfunc) (struct link *this, int flags);
 211 #else
 212         struct link *(*linkfunc) ();
 213 #endif
 214         struct t_struct stuff[1][2][3];
 215 } *s_link;
 216
 217 union tu_link {
 218         struct link *next;
 219 #ifdef __STDC__
 220         struct link *(*linkfunc) (struct link *this, int flags);
 221 #else
 222         struct link *(*linkfunc) ();
 223 #endif
 224         struct t_struct stuff[1][2][3];
 225 } u_link;
 226
 227 struct outer_struct {
 228         int outer_int;
 229         struct inner_struct {
 230                 int inner_int;
 231                 long inner_long;
 232         }inner_struct_instance;
 233         union inner_union {
 234                 int inner_union_int;
 235                 long inner_union_long;
 236         }inner_union_instance;
 237         long outer_long;
 238 } nested_su;
 239
 240 /**** Enumerations *******/
 241
 242 enum colors {red, green, blue} color;
 243 enum cars {chevy, ford, porsche} clunker;
 244
 245 /***********/
 246
 247 int main ()
 248 {
 249   /* Some linkers (e.g. on AIX) remove unreferenced variables,
 250      so make sure to reference them. */
 251   v_char = 0;
 252   v_signed_char = 1;
 253   v_unsigned_char = 2;
 254
 255   v_short = 3;
 256   v_signed_short = 4;
 257   v_unsigned_short = 5;
 258
 259   v_int = 6;
 260   v_signed_int = 7;
 261   v_unsigned_int = 8;
 262
 263   v_long = 9;
 264   v_signed_long = 10;
 265   v_unsigned_long = 11;
 266
 267 #ifndef NO_LONG_LONG
 268   v_long_long = 12;
 269   v_signed_long_long = 13;
 270   v_unsigned_long_long = 14;
 271 #endif
 272
 273   v_float = 100.0;
 274   v_double = 200.0;
 275
 276
 277   v_char_array[0] = v_char;
 278   v_signed_char_array[0] = v_signed_char;
 279   v_unsigned_char_array[0] = v_unsigned_char;
 280
 281   v_short_array[0] = v_short;
 282   v_signed_short_array[0] = v_signed_short;
 283   v_unsigned_short_array[0] = v_unsigned_short;
 284
 285   v_int_array[0] = v_int;
 286   v_signed_int_array[0] = v_signed_int;
 287   v_unsigned_int_array[0] = v_unsigned_int;
 288
 289   v_long_array[0] = v_long;
 290   v_signed_long_array[0] = v_signed_long;
 291   v_unsigned_long_array[0] = v_unsigned_long;
 292
 293 #ifndef NO_LONG_LONG
 294   v_long_long_array[0] = v_long_long;
 295   v_signed_long_long_array[0] = v_signed_long_long;
 296   v_unsigned_long_long_array[0] = v_unsigned_long_long;
 297 #endif
 298
 299   v_float_array[0] = v_float;
 300   v_double_array[0] = v_double;
 301
 302   v_char_pointer = &v_char;
 303   v_signed_char_pointer = &v_signed_char;
 304   v_unsigned_char_pointer = &v_unsigned_char;
 305
 306   v_short_pointer = &v_short;
 307   v_signed_short_pointer = &v_signed_short;
 308   v_unsigned_short_pointer = &v_unsigned_short;
 309
 310   v_int_pointer = &v_int;
 311   v_signed_int_pointer = &v_signed_int;
 312   v_unsigned_int_pointer = &v_unsigned_int;
 313
 314   v_long_pointer = &v_long;
 315   v_signed_long_pointer = &v_signed_long;
 316   v_unsigned_long_pointer = &v_unsigned_long;
 317
 318 #ifndef NO_LONG_LONG
 319   v_long_long_pointer = &v_long_long;
 320   v_signed_long_long_pointer = &v_signed_long_long;
 321   v_unsigned_long_long_pointer = &v_unsigned_long_long;
 322 #endif
 323
 324   v_float_pointer = &v_float;
 325   v_double_pointer = &v_double;
 326
 327   color = red;
 328   clunker = porsche;
 329
 330   u_link.next = s_link;
 331
 332   v_union2.v_short_member = v_union.v_short_member;
 333
 334   v_struct1.v_char_member = 0;
 335   v_struct2.v_char_member = 0;
 336
 337   nested_su.outer_int = 0;
 338   return 0;
 339 }