elf/vismain.c

   1 /* Copyright (C) 2000 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22
  23 #include "vismod.h"
  24
  25 /* Prototype for our test function.  */
  26 extern int do_test (void);
  27
  28 #define TEST_FUNCTION do_test ()
  29
  30 /* This defines the `main' function and some more.  */
  31 #include <test-skeleton.c>
  32
  33
  34 /* Prototypes for local functions.  */
  35 extern int protlocal (void);
  36
  37 const char *protvarlocal = __FILE__;
  38 extern const char *protvarinmod;
  39 extern const char *protvaritcpt;
  40
  41 int
  42 do_test (void)
  43 {
  44   int res = 0;
  45   int val;
  46
  47   /* First test: check whether .protected is handled correctly by the
  48      assembler/linker.  The uses of `protlocal' in the DSOs and in the
  49      main program should all be resolved with the local definitions.  */
  50   val = protlocal () + calllocal1 () + calllocal2 ();
  51   if (val != 0x155)
  52     {
  53       puts ("\
  54 The handling of `.protected' seems to be implemented incorrectly: giving up");
  55       abort ();
  56     }
  57   puts ("`.protected' seems to be handled correctly, good!");
  58
  59   /* Function pointers: for functions which are marked local and for
  60      which definitions are available all function pointers must be
  61      distinct.  */
  62   if (protlocal == getlocal1 ())
  63     {
  64       puts ("`protlocal' in main and mod1 have same address");
  65       res = 1;
  66     }
  67   if (protlocal == getlocal2 ())
  68     {
  69       puts ("`protlocal' in main and mod2 have same address");
  70       res = 1;
  71     }
  72   if (getlocal1 () == getlocal2 ())
  73     {
  74       puts ("`protlocal' in mod1 and mod2 have same address");
  75       res = 1;
  76     }
  77   if (getlocal1 () () + getlocal2 () () != 0x44)
  78     {
  79       puts ("pointers to `protlocal' in mod1 or mod2 incorrect");
  80       res = 1;
  81     }
  82
  83   /* Next test.  This is similar to the last one but the function we
  84      are calling is not defined in the main object.  This means that
  85      the invocation in the main object uses the definition in the
  86      first DSO.  */
  87   if (protinmod != getinmod1 ())
  88     {
  89       puts ("`protinmod' in main and mod1 don't have same address");
  90       res = 1;
  91     }
  92   if (protinmod == getinmod2 ())
  93     {
  94       puts ("`protinmod' in main and mod2 have same address");
  95       res = 1;
  96     }
  97   if (getinmod1 () == getinmod2 ())
  98     {
  99       puts ("`protinmod' in mod1 and mod2 have same address");
 100       res = 1;
 101     }
 102   if (protinmod () + getinmod1 () () + getinmod2 () () != 0x4800)
 103     {
 104       puts ("pointers to `protinmod' in mod1 or mod2 incorrect");
 105       res = 1;
 106     }
 107   val = protinmod () + callinmod1 () + callinmod2 ();
 108   if (val != 0x15800)
 109     {
 110       printf ("calling of `protinmod' leads to wrong result (%#x)\n", val);
 111       res = 1;
 112     }
 113
 114   /* A very similar text.  Same setup for the main object and the modules
 115      but this time we have another definition in a preloaded module. This
 116      one intercepts the references from the main object.  */
 117   if (protitcpt != getitcpt3 ())
 118     {
 119       puts ("`protitcpt' in main and mod3 don't have same address");
 120       res = 1;
 121     }
 122   if (protitcpt == getitcpt1 ())
 123     {
 124       puts ("`protitcpt' in main and mod1 have same address");
 125       res = 1;
 126     }
 127   if (protitcpt == getitcpt2 ())
 128     {
 129       puts ("`protitcpt' in main and mod2 have same address");
 130       res = 1;
 131     }
 132   if (getitcpt1 () == getitcpt2 ())
 133     {
 134       puts ("`protitcpt' in mod1 and mod2 have same address");
 135       res = 1;
 136     }
 137   val = protitcpt () + getitcpt1 () () + getitcpt2 () () + getitcpt3 () ();
 138   if (val != 0x8440000)
 139     {
 140       printf ("\
 141 pointers to `protitcpt' in mod1 or mod2 or mod3 incorrect (%#x)\n", val);
 142       res = 1;
 143     }
 144   val = protitcpt () + callitcpt1 () + callitcpt2 () + callitcpt3 ();
 145   if (val != 0x19540000)
 146     {
 147       printf ("calling of `protitcpt' leads to wrong result (%#x)\n", val);
 148       res = 1;
 149     }
 150
 151   /* Now look at variables.  First a variable which is available
 152      everywhere.  We must have three different addresses.  */
 153   if (protvarlocal == getvarlocal1 ())
 154     {
 155       puts ("`protvarlocal' in main and mod1 have same address");
 156       res = 1;
 157     }
 158   if (protvarlocal == getvarlocal2 ())
 159     {
 160       puts ("`protvarlocal' in main and mod2 have same address");
 161       res = 1;
 162     }
 163   if (getvarlocal1 () == getvarlocal2 ())
 164     {
 165       puts ("`protvarlocal' in mod1 and mod2 have same address");
 166       res = 1;
 167     }
 168   if (strcmp (protvarlocal, __FILE__) != 0)
 169     {
 170       puts ("`protvarlocal in main has wrong value");
 171       res = 1;
 172     }
 173   if (strcmp (getvarlocal1 (), "vismod1.c") != 0)
 174     {
 175       puts ("`getvarlocal1' returns wrong value");
 176       res = 1;
 177     }
 178   if (strcmp (getvarlocal2 (), "vismod2.c") != 0)
 179     {
 180       puts ("`getvarlocal2' returns wrong value");
 181       res = 1;
 182     }
 183
 184   /* Now the case where there is no local definition.  */
 185   if (protvarinmod != getvarinmod1 ())
 186     {
 187       puts ("`protvarinmod' in main and mod1 have not same address");
 188       res = 1;
 189     }
 190   if (protvarinmod == getvarinmod2 ())
 191     {
 192       puts ("`protvarinmod' in main and mod2 have same address");
 193       res = 1;
 194     }
 195   if (strcmp (getvarinmod1 (), "vismod1.c") != 0)
 196     {
 197       puts ("`getvarinmod1' returns wrong value");
 198       res = 1;
 199     }
 200   if (strcmp (getvarinmod2 (), "vismod2.c") != 0)
 201     {
 202       puts ("`getvarinmod2' returns wrong value");
 203       res = 1;
 204     }
 205
 206   /* And a test where a variable definition is intercepted.  */
 207   if (protvaritcpt == getvaritcpt1 ())
 208     {
 209       puts ("`protvaritcpt' in main and mod1 have same address");
 210       res = 1;
 211     }
 212   if (protvaritcpt == getvaritcpt2 ())
 213     {
 214       puts ("`protvaritcpt' in main and mod2 have same address");
 215       res = 1;
 216     }
 217   if (protvaritcpt != getvaritcpt3 ())
 218     {
 219       puts ("`protvaritcpt' in main and mod3 have not same address");
 220       res = 1;
 221     }
 222   if (getvaritcpt1 () == getvaritcpt2 ())
 223     {
 224       puts ("`protvaritcpt' in mod1 and mod2 have same address");
 225       res = 1;
 226     }
 227   if (strcmp (protvaritcpt, "vismod3.c") != 0)
 228     {
 229       puts ("`protvaritcpt in main has wrong value");
 230       res = 1;
 231     }
 232   if (strcmp (getvaritcpt1 (), "vismod1.c") != 0)
 233     {
 234       puts ("`getvaritcpt1' returns wrong value");
 235       res = 1;
 236     }
 237   if (strcmp (getvaritcpt2 (), "vismod2.c") != 0)
 238     {
 239       puts ("`getvaritcpt2' returns wrong value");
 240       res = 1;
 241     }
 242
 243   return res;
 244 }
 245
 246
 247 int
 248 protlocal (void)
 249 {
 250   return 0x1;
 251 }