gdb/testsuite/gdb.guile/scm-pretty-print.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2008-2020 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 #include <string.h>
  19
  20 struct s
  21 {
  22   int a;
  23   int *b;
  24 };
  25
  26 struct ss
  27 {
  28   struct s a;
  29   struct s b;
  30 };
  31
  32 struct arraystruct
  33 {
  34   int y;
  35   struct s x[2];
  36 };
  37
  38 struct ns {
  39   const char *null_str;
  40   int length;
  41 };
  42
  43 struct lazystring {
  44   const char *lazy_str;
  45 };
  46
  47 struct hint_error {
  48   int x;
  49 };
  50
  51 struct children_as_list {
  52   int x;
  53 };
  54
  55 #ifdef __cplusplus
  56 struct S : public s {
  57   int zs;
  58 };
  59
  60 struct SS {
  61   int zss;
  62   S s;
  63 };
  64
  65 struct SSS
  66 {
  67   SSS (int x, const S& r);
  68   int a;
  69   const S &b;
  70 };
  71 SSS::SSS (int x, const S& r) : a(x), b(r) { }
  72
  73 class VirtualTest
  74 {
  75  private:
  76   int value;
  77
  78  public:
  79   VirtualTest ()
  80     {
  81       value = 1;
  82     }
  83 };
  84
  85 class Vbase1 : public virtual VirtualTest { };
  86 class Vbase2 : public virtual VirtualTest { };
  87 class Vbase3 : public virtual VirtualTest { };
  88
  89 class Derived : public Vbase1, public Vbase2, public Vbase3
  90 {
  91  private:
  92   int value;
  93
  94  public:
  95   Derived ()
  96     {
  97       value = 2;
  98     }
  99 };
 100
 101 class Fake
 102 {
 103   int sname;
 104
 105  public:
 106   Fake (const int name = 0):
 107   sname (name)
 108   {
 109   }
 110 };
 111 #endif
 112
 113 struct substruct {
 114   int a;
 115   int b;
 116 };
 117
 118 struct outerstruct {
 119   struct substruct s;
 120   int x;
 121 };
 122
 123 struct outerstruct
 124 substruct_test (void)
 125 {
 126   struct outerstruct outer;
 127   outer.s.a = 0;
 128   outer.s.b = 0;
 129   outer.x = 0;
 130
 131   outer.s.a = 3;                /* MI outer breakpoint here */
 132
 133   return outer;
 134 }
 135
 136 typedef struct string_repr
 137 {
 138   struct whybother
 139   {
 140     const char *contents;
 141   } whybother;
 142 } string;
 143
 144 /* This lets us avoid malloc.  */
 145 int array[100];
 146 int narray[10];
 147
 148 struct justchildren
 149 {
 150   int len;
 151   int *elements;
 152 };
 153
 154 typedef struct justchildren nostring_type;
 155
 156 struct memory_error
 157 {
 158   const char *s;
 159 };
 160
 161 struct container
 162 {
 163   string name;
 164   int len;
 165   int *elements;
 166 };
 167
 168 typedef struct container zzz_type;
 169
 170 string
 171 make_string (const char *s)
 172 {
 173   string result;
 174   result.whybother.contents = s;
 175   return result;
 176 }
 177
 178 zzz_type
 179 make_container (const char *s)
 180 {
 181   zzz_type result;
 182
 183   result.name = make_string (s);
 184   result.len = 0;
 185   result.elements = 0;
 186
 187   return result;
 188 }
 189
 190 void
 191 add_item (zzz_type *c, int val)
 192 {
 193   if (c->len == 0)
 194     c->elements = array;
 195   c->elements[c->len] = val;
 196   ++c->len;
 197 }
 198
 199 void
 200 set_item(zzz_type *c, int i, int val)
 201 {
 202   if (i < c->len)
 203     c->elements[i] = val;
 204 }
 205
 206 void init_s(struct s *s, int a)
 207 {
 208   s->a = a;
 209   s->b = &s->a;
 210 }
 211
 212 void init_ss(struct ss *s, int a, int b)
 213 {
 214   init_s(&s->a, a);
 215   init_s(&s->b, b);
 216 }
 217
 218 void do_nothing(void)
 219 {
 220   int c;
 221
 222   c = 23;                       /* Another MI breakpoint */
 223 }
 224
 225 struct nullstr
 226 {
 227   char *s;
 228 };
 229
 230 struct string_repr string_1 = { { "one" } };
 231 struct string_repr string_2 = { { "two" } };
 232
 233 static int __attribute__ ((used))
 234 eval_func (int p1, int p2, int p3, int p4, int p5, int p6, int p7, int p8)
 235 {
 236   return p1;
 237 }
 238
 239 static void
 240 eval_sub (void)
 241 {
 242   struct eval_type_s { int x; } eval1 = { 1 }, eval2 = { 2 }, eval3 = { 3 },
 243                                 eval4 = { 4 }, eval5 = { 5 }, eval6 = { 6 },
 244                                 eval7 = { 7 }, eval8 = { 8 }, eval9 = { 9 };
 245
 246   eval1.x++; /* eval-break */
 247 }
 248
 249 static void
 250 bug_14741()
 251 {
 252   zzz_type c = make_container ("bug_14741");
 253   add_item (&c, 71);
 254   set_item(&c, 0, 42); /* breakpoint bug 14741 */
 255   set_item(&c, 0, 5);
 256 }
 257
 258 int
 259 main ()
 260 {
 261   struct ss  ss;
 262   struct ss  ssa[2];
 263   struct arraystruct arraystruct;
 264   string x = make_string ("this is x");
 265   zzz_type c = make_container ("container");
 266   zzz_type c2 = make_container ("container2");
 267   const struct string_repr cstring = { { "const string" } };
 268   /* Clearing by being `static' could invoke an other GDB C++ bug.  */
 269   struct nullstr nullstr;
 270   nostring_type nstype, nstype2;
 271   struct memory_error me;
 272   struct ns ns, ns2;
 273   struct lazystring estring, estring2;
 274   struct hint_error hint_error;
 275   struct children_as_list children_as_list;
 276
 277   nstype.elements = narray;
 278   nstype.len = 0;
 279
 280   me.s = "blah";
 281
 282   init_ss(&ss, 1, 2);
 283   init_ss(ssa+0, 3, 4);
 284   init_ss(ssa+1, 5, 6);
 285   memset (&nullstr, 0, sizeof nullstr);
 286
 287   arraystruct.y = 7;
 288   init_s (&arraystruct.x[0], 23);
 289   init_s (&arraystruct.x[1], 24);
 290
 291   ns.null_str = "embedded\0null\0string";
 292   ns.length = 20;
 293
 294   /* Make a "corrupted" string.  */
 295   ns2.null_str = NULL;
 296   ns2.length = 20;
 297
 298   estring.lazy_str = "embedded x\201\202\203\204" ;
 299
 300   /* Incomplete UTF-8, but ok Latin-1.  */
 301   estring2.lazy_str = "embedded x\302";
 302
 303 #ifdef __cplusplus
 304   S cps;
 305
 306   cps.zs = 7;
 307   init_s(&cps, 8);
 308
 309   SS cpss;
 310   cpss.zss = 9;
 311   init_s(&cpss.s, 10);
 312
 313   SS cpssa[2];
 314   cpssa[0].zss = 11;
 315   init_s(&cpssa[0].s, 12);
 316   cpssa[1].zss = 13;
 317   init_s(&cpssa[1].s, 14);
 318
 319   SSS sss(15, cps);
 320
 321   SSS& ref (sss);
 322
 323   Derived derived;
 324
 325   Fake fake (42);
 326 #endif
 327
 328   add_item (&c, 23);            /* MI breakpoint here */
 329   add_item (&c, 72);
 330
 331 #ifdef MI
 332   add_item (&c, 1011);
 333   c.elements[0] = 1023;
 334   c.elements[0] = 2323;
 335
 336   add_item (&c2, 2222);
 337   add_item (&c2, 3333);
 338
 339   substruct_test ();
 340   do_nothing ();
 341 #endif
 342
 343   nstype.elements[0] = 7;
 344   nstype.elements[1] = 42;
 345   nstype.len = 2;
 346
 347   nstype2 = nstype;
 348
 349   eval_sub ();
 350
 351   bug_14741();      /* break to inspect struct and union */
 352   return 0;
 353 }