gdb/testsuite/gdb.base/whatis.c

   1 /* This test program is part of GDB, the GNU debugger.
   2
   3    Copyright 1992, 1993, 1994, 1997, 1999, 2004, 2007, 2008, 2009, 2010, 2011
   4    Free Software Foundation, Inc.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18    */
  19
  20 /*
  21  *      Test file with lots of different types, for testing the
  22  *      "whatis" command.
  23  */
  24
  25 /*
  26  *      First the basic C types.
  27  */
  28
  29 char            v_char;
  30 signed char     v_signed_char;
  31 unsigned char   v_unsigned_char;
  32
  33 short           v_short;
  34 signed short    v_signed_short;
  35 unsigned short  v_unsigned_short;
  36
  37 int             v_int;
  38 signed int      v_signed_int;
  39 unsigned int    v_unsigned_int;
  40
  41 long            v_long;
  42 signed long     v_signed_long;
  43 unsigned long   v_unsigned_long;
  44
  45 #ifndef NO_LONG_LONG
  46 long long               v_long_long;
  47 signed long long        v_signed_long_long;
  48 unsigned long long      v_unsigned_long_long;
  49 #endif
  50
  51 float           v_float;
  52 double          v_double;
  53
  54 /*
  55  *      Now some derived types, which are arrays, functions-returning,
  56  *      pointers, structures, unions, and enumerations.
  57  */
  58
  59 /**** arrays *******/
  60
  61 char            v_char_array[2];
  62 signed char     v_signed_char_array[2];
  63 unsigned char   v_unsigned_char_array[2];
  64
  65 short           v_short_array[2];
  66 signed short    v_signed_short_array[2];
  67 unsigned short  v_unsigned_short_array[2];
  68
  69 int             v_int_array[2];
  70 signed int      v_signed_int_array[2];
  71 unsigned int    v_unsigned_int_array[2];
  72
  73 long            v_long_array[2];
  74 signed long     v_signed_long_array[2];
  75 unsigned long   v_unsigned_long_array[2];
  76
  77 #ifndef NO_LONG_LONG
  78 long long               v_long_long_array[2];
  79 signed long long        v_signed_long_long_array[2];
  80 unsigned long long      v_unsigned_long_long_array[2];
  81 #endif
  82
  83 float           v_float_array[2];
  84 double          v_double_array[2];
  85
  86 /**** pointers *******/
  87
  88 /* Make sure they still print as pointer to foo even there is a typedef
  89    for that type.  Test this not just for char *, which might be
  90    a special case kludge in GDB (Unix system include files like to define
  91    caddr_t), but for a variety of types.  */
  92 typedef char *char_addr;
  93 static char_addr a_char_addr;
  94 typedef unsigned short *ushort_addr;
  95 static ushort_addr a_ushort_addr;
  96 typedef signed long *slong_addr;
  97 static slong_addr a_slong_addr;
  98 #ifndef NO_LONG_LONG
  99 typedef signed long long *slong_long_addr;
 100 static slong_long_addr a_slong_long_addr;
 101 #endif
 102
 103 char            *v_char_pointer;
 104 signed char     *v_signed_char_pointer;
 105 unsigned char   *v_unsigned_char_pointer;
 106
 107 short           *v_short_pointer;
 108 signed short    *v_signed_short_pointer;
 109 unsigned short  *v_unsigned_short_pointer;
 110
 111 int             *v_int_pointer;
 112 signed int      *v_signed_int_pointer;
 113 unsigned int    *v_unsigned_int_pointer;
 114
 115 long            *v_long_pointer;
 116 signed long     *v_signed_long_pointer;
 117 unsigned long   *v_unsigned_long_pointer;
 118
 119 #ifndef NO_LONG_LONG
 120 long long               *v_long_long_pointer;
 121 signed long long        *v_signed_long_long_pointer;
 122 unsigned long long      *v_unsigned_long_long_pointer;
 123 #endif
 124
 125 float           *v_float_pointer;
 126 double          *v_double_pointer;
 127
 128 /**** structs *******/
 129
 130 struct t_struct {
 131     char        v_char_member;
 132     short       v_short_member;
 133     int         v_int_member;
 134     long        v_long_member;
 135 #ifndef NO_LONG_LONG
 136     long long   v_long_long_member;
 137 #endif
 138     float       v_float_member;
 139     double      v_double_member;
 140 } v_struct1;
 141
 142 struct {
 143     char        v_char_member;
 144     short       v_short_member;
 145     int         v_int_member;
 146     long        v_long_member;
 147 #ifndef NO_LONG_LONG
 148     long long   v_long_long_member;
 149 #endif
 150     float       v_float_member;
 151     double      v_double_member;
 152 } v_struct2;
 153
 154 /**** unions *******/
 155
 156 union t_union {
 157     char        v_char_member;
 158     short       v_short_member;
 159     int         v_int_member;
 160     long        v_long_member;
 161 #ifndef NO_LONG_LONG
 162     long long   v_long_long_member;
 163 #endif
 164     float       v_float_member;
 165     double      v_double_member;
 166 } v_union;
 167
 168 union {
 169     char        v_char_member;
 170     short       v_short_member;
 171     int         v_int_member;
 172     long        v_long_member;
 173 #ifndef NO_LONG_LONG
 174     long long   v_long_long_member;
 175 #endif
 176     float       v_float_member;
 177     double      v_double_member;
 178 } v_union2;
 179
 180 /*** Functions returning type ********/
 181
 182 char            v_char_func () { return(0); }
 183 signed char     v_signed_char_func () { return (0); }
 184 unsigned char   v_unsigned_char_func () { return (0); }
 185
 186 short           v_short_func () { return (0); }
 187 signed short    v_signed_short_func () { return (0); }
 188 unsigned short  v_unsigned_short_func () { return (0); }
 189
 190 int             v_int_func () { return (0); }
 191 signed int      v_signed_int_func () { return (0); }
 192 unsigned int    v_unsigned_int_func () { return (0); }
 193
 194 long            v_long_func () { return (0); }
 195 signed long     v_signed_long_func () { return (0); }
 196 unsigned long   v_unsigned_long_func () { return (0); }
 197
 198 #ifndef NO_LONG_LONG
 199 long long               v_long_long_func () { return (0); }
 200 signed long long        v_signed_long_long_func () { return (0); }
 201 unsigned long long      v_unsigned_long_long_func () { return (0); }
 202 #endif
 203
 204 float           v_float_func () { return (0.0); }
 205 double          v_double_func () { return (0.0); }
 206
 207 /**** Some misc more complicated things *******/
 208
 209 struct link {
 210         struct link *next;
 211 #ifdef __STDC__
 212         struct link *(*linkfunc) (struct link *this, int flags);
 213 #else
 214         struct link *(*linkfunc) ();
 215 #endif
 216         struct t_struct stuff[1][2][3];
 217 } *s_link;
 218
 219 union tu_link {
 220         struct link *next;
 221 #ifdef __STDC__
 222         struct link *(*linkfunc) (struct link *this, int flags);
 223 #else
 224         struct link *(*linkfunc) ();
 225 #endif
 226         struct t_struct stuff[1][2][3];
 227 } u_link;
 228
 229 struct outer_struct {
 230         int outer_int;
 231         struct inner_struct {
 232                 int inner_int;
 233                 long inner_long;
 234         }inner_struct_instance;
 235         union inner_union {
 236                 int inner_union_int;
 237                 long inner_union_long;
 238         }inner_union_instance;
 239         long outer_long;
 240 } nested_su;
 241
 242 /**** Enumerations *******/
 243
 244 enum colors {red, green, blue} color;
 245 enum cars {chevy, ford, porsche} clunker;
 246
 247 /***********/
 248
 249 int main ()
 250 {
 251 #ifdef usestubs
 252   set_debug_traps();
 253   breakpoint();
 254 #endif
 255   /* Some linkers (e.g. on AIX) remove unreferenced variables,
 256      so make sure to reference them. */
 257   v_char = 0;
 258   v_signed_char = 1;
 259   v_unsigned_char = 2;
 260
 261   v_short = 3;
 262   v_signed_short = 4;
 263   v_unsigned_short = 5;
 264
 265   v_int = 6;
 266   v_signed_int = 7;
 267   v_unsigned_int = 8;
 268
 269   v_long = 9;
 270   v_signed_long = 10;
 271   v_unsigned_long = 11;
 272
 273 #ifndef NO_LONG_LONG
 274   v_long_long = 12;
 275   v_signed_long_long = 13;
 276   v_unsigned_long_long = 14;
 277 #endif
 278
 279   v_float = 100.0;
 280   v_double = 200.0;
 281
 282
 283   v_char_array[0] = v_char;
 284   v_signed_char_array[0] = v_signed_char;
 285   v_unsigned_char_array[0] = v_unsigned_char;
 286
 287   v_short_array[0] = v_short;
 288   v_signed_short_array[0] = v_signed_short;
 289   v_unsigned_short_array[0] = v_unsigned_short;
 290
 291   v_int_array[0] = v_int;
 292   v_signed_int_array[0] = v_signed_int;
 293   v_unsigned_int_array[0] = v_unsigned_int;
 294
 295   v_long_array[0] = v_long;
 296   v_signed_long_array[0] = v_signed_long;
 297   v_unsigned_long_array[0] = v_unsigned_long;
 298
 299 #ifndef NO_LONG_LONG
 300   v_long_long_array[0] = v_long_long;
 301   v_signed_long_long_array[0] = v_signed_long_long;
 302   v_unsigned_long_long_array[0] = v_unsigned_long_long;
 303 #endif
 304
 305   v_float_array[0] = v_float;
 306   v_double_array[0] = v_double;
 307
 308   v_char_pointer = &v_char;
 309   v_signed_char_pointer = &v_signed_char;
 310   v_unsigned_char_pointer = &v_unsigned_char;
 311
 312   v_short_pointer = &v_short;
 313   v_signed_short_pointer = &v_signed_short;
 314   v_unsigned_short_pointer = &v_unsigned_short;
 315
 316   v_int_pointer = &v_int;
 317   v_signed_int_pointer = &v_signed_int;
 318   v_unsigned_int_pointer = &v_unsigned_int;
 319
 320   v_long_pointer = &v_long;
 321   v_signed_long_pointer = &v_signed_long;
 322   v_unsigned_long_pointer = &v_unsigned_long;
 323
 324 #ifndef NO_LONG_LONG
 325   v_long_long_pointer = &v_long_long;
 326   v_signed_long_long_pointer = &v_signed_long_long;
 327   v_unsigned_long_long_pointer = &v_unsigned_long_long;
 328 #endif
 329
 330   v_float_pointer = &v_float;
 331   v_double_pointer = &v_double;
 332
 333   color = red;
 334   clunker = porsche;
 335
 336   u_link.next = s_link;
 337
 338   v_union2.v_short_member = v_union.v_short_member;
 339
 340   v_struct1.v_char_member = 0;
 341   v_struct2.v_char_member = 0;
 342
 343   nested_su.outer_int = 0;
 344   return 0;
 345 }