gdb/testsuite/gdb.base/sepdebug.c

   1 /* Copyright 1994, 1995, 1999, 2002, 2003, 2004, 2007, 2008
   2 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program 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
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  16
  17 #ifdef vxworks
  18
  19 #  include <stdio.h>
  20
  21 /* VxWorks does not supply atoi.  */
  22 static int
  23 atoi (z)
  24      char *z;
  25 {
  26   int i = 0;
  27
  28   while (*z >= '0' && *z <= '9')
  29     i = i * 10 + (*z++ - '0');
  30   return i;
  31 }
  32
  33 /* I don't know of any way to pass an array to VxWorks.  This function
  34    can be called directly from gdb.  */
  35
  36 vxmain (arg)
  37 char *arg;
  38 {
  39   char *argv[2];
  40
  41   argv[0] = "";
  42   argv[1] = arg;
  43   main (2, argv, (char **) 0);
  44 }
  45
  46 #else /* ! vxworks */
  47 #  include <stdio.h>
  48 #  include <stdlib.h>
  49 #endif /* ! vxworks */
  50
  51 /*
  52  * The following functions do nothing useful.  They are included simply
  53  * as places to try setting breakpoints at.  They are explicitly
  54  * "one-line functions" to verify that this case works (some versions
  55  * of gcc have or have had problems with this).
  56  */
  57
  58 #ifdef PROTOTYPES
  59 int marker1 (void) { return (0); }
  60 int marker2 (int a) { return (1); } /* set breakpoint 8 here */
  61 void marker3 (char *a, char *b) {}
  62 void marker4 (long d) {} /* set breakpoint 14 here */
  63 #else
  64 int marker1 () { return (0); }
  65 int marker2 (a) int a; { return (1); } /* set breakpoint 9 here */
  66 void marker3 (a, b) char *a, *b; {}
  67 void marker4 (d) long d; {}  /* set breakpoint 13 here */
  68 #endif
  69
  70 /*
  71  *      This simple classical example of recursion is useful for
  72  *      testing stack backtraces and such.
  73  */
  74
  75 #ifdef PROTOTYPES
  76 int factorial(int);
  77
  78 int
  79 main (int argc, char **argv, char **envp)
  80 #else
  81 int
  82 main (argc, argv, envp)
  83 int argc;
  84 char *argv[], **envp;
  85 #endif
  86 {
  87 #ifdef usestubs
  88     set_debug_traps();  /* set breakpoint 5 here */
  89     breakpoint();
  90 #endif
  91     if (argc == 12345) {  /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */
  92         fprintf (stderr, "usage:  factorial <number>\n");
  93         return 1;
  94     }
  95     printf ("%d\n", factorial (atoi ("6")));  /* set breakpoint 1 here */
  96     /* set breakpoint 12 here */
  97     marker1 ();  /* set breakpoint 11 here */
  98     marker2 (43);
  99     marker3 ("stack", "trace");
 100     marker4 (177601976L);
 101     argc = (argc == 12345); /* This is silly, but we can step off of it */ /* set breakpoint 2 here */
 102     return argc;  /* set breakpoint 10 here */
 103 }
 104
 105 #ifdef PROTOTYPES
 106 int factorial (int value)
 107 #else
 108 int factorial (value)
 109 int value;
 110 #endif
 111 {
 112   if (value > 1) {  /* set breakpoint 7 here */
 113         value *= factorial (value - 1);
 114     }
 115     return (value);
 116 }
 117
 118 #ifdef PROTOTYPES
 119 int multi_line_if_conditional (int a, int b, int c)
 120 #else
 121 int multi_line_if_conditional (a, b, c)
 122   int a, b, c;
 123 #endif
 124 {
 125   if (a    /* set breakpoint 3 here */
 126       && b
 127       && c)
 128     return 0;
 129   else
 130     return 1;
 131 }
 132
 133 #ifdef PROTOTYPES
 134 int multi_line_while_conditional (int a, int b, int c)
 135 #else
 136 int multi_line_while_conditional (a, b, c)
 137   int a, b, c;
 138 #endif
 139 {
 140   while (a /* set breakpoint 4 here */
 141       && b
 142       && c)
 143     {
 144       a--, b--, c--;
 145     }
 146   return 0;
 147 }