gdb/testsuite/gdb.base/sepdebug.c

   1 /* Copyright 1994-2013 Free Software Foundation, Inc.
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 3 of the License, or
   6    (at your option) any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  15
  16 #ifdef vxworks
  17
  18 #  include <stdio.h>
  19
  20 /* VxWorks does not supply atoi.  */
  21 static int
  22 atoi (z)
  23      char *z;
  24 {
  25   int i = 0;
  26
  27   while (*z >= '0' && *z <= '9')
  28     i = i * 10 + (*z++ - '0');
  29   return i;
  30 }
  31
  32 /* I don't know of any way to pass an array to VxWorks.  This function
  33    can be called directly from gdb.  */
  34
  35 vxmain (arg)
  36 char *arg;
  37 {
  38   char *argv[2];
  39
  40   argv[0] = "";
  41   argv[1] = arg;
  42   main (2, argv, (char **) 0);
  43 }
  44
  45 #else /* ! vxworks */
  46 #  include <stdio.h>
  47 #  include <stdlib.h>
  48 #endif /* ! vxworks */
  49
  50 /*
  51  * The following functions do nothing useful.  They are included simply
  52  * as places to try setting breakpoints at.  They are explicitly
  53  * "one-line functions" to verify that this case works (some versions
  54  * of gcc have or have had problems with this).
  55  */
  56
  57 #ifdef PROTOTYPES
  58 int marker1 (void) { return (0); }
  59 int marker2 (int a) { return (1); } /* set breakpoint 8 here */
  60 void marker3 (char *a, char *b) {}
  61 void marker4 (long d) {} /* set breakpoint 14 here */
  62 #else
  63 int marker1 () { return (0); }
  64 int marker2 (a) int a; { return (1); } /* set breakpoint 9 here */
  65 void marker3 (a, b) char *a, *b; {}
  66 void marker4 (d) long d; {}  /* set breakpoint 13 here */
  67 #endif
  68
  69 /*
  70  *      This simple classical example of recursion is useful for
  71  *      testing stack backtraces and such.
  72  */
  73
  74 #ifdef PROTOTYPES
  75 int factorial(int);
  76
  77 int
  78 main (int argc, char **argv, char **envp)
  79 #else
  80 int
  81 main (argc, argv, envp)
  82 int argc;
  83 char *argv[], **envp;
  84 #endif
  85 {
  86     if (argc == 12345) {  /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */
  87         fprintf (stderr, "usage:  factorial <number>\n");
  88         return 1;
  89     }
  90     printf ("%d\n", factorial (atoi ("6")));  /* set breakpoint 1 here */
  91     /* set breakpoint 12 here */
  92     marker1 ();  /* set breakpoint 11 here */
  93     marker2 (43);
  94     marker3 ("stack", "trace");
  95     marker4 (177601976L);
  96     argc = (argc == 12345); /* This is silly, but we can step off of it */ /* set breakpoint 2 here */
  97     return argc;  /* set breakpoint 10 here */
  98 }
  99
 100 #ifdef PROTOTYPES
 101 int factorial (int value)
 102 #else
 103 int factorial (value)
 104 int value;
 105 #endif
 106 {
 107   if (value > 1) {  /* set breakpoint 7 here */
 108         value *= factorial (value - 1);
 109     }
 110     return (value);
 111 }
 112
 113 #ifdef PROTOTYPES
 114 int multi_line_if_conditional (int a, int b, int c)
 115 #else
 116 int multi_line_if_conditional (a, b, c)
 117   int a, b, c;
 118 #endif
 119 {
 120   if (a    /* set breakpoint 3 here */
 121       && b
 122       && c)
 123     return 0;
 124   else
 125     return 1;
 126 }
 127
 128 #ifdef PROTOTYPES
 129 int multi_line_while_conditional (int a, int b, int c)
 130 #else
 131 int multi_line_while_conditional (a, b, c)
 132   int a, b, c;
 133 #endif
 134 {
 135   while (a /* set breakpoint 4 here */
 136       && b
 137       && c)
 138     {
 139       a--, b--, c--;
 140     }
 141   return 0;
 142 }