gdb/testsuite/gdb.base/break.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 1992, 1993, 1994, 1995, 1999, 2002, 2003, 2007, 2008
   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 #ifdef vxworks
  20
  21 #  include <stdio.h>
  22
  23 /* VxWorks does not supply atoi.  */
  24 static int
  25 atoi (z)
  26      char *z;
  27 {
  28   int i = 0;
  29
  30   while (*z >= '0' && *z <= '9')
  31     i = i * 10 + (*z++ - '0');
  32   return i;
  33 }
  34
  35 /* I don't know of any way to pass an array to VxWorks.  This function
  36    can be called directly from gdb.  */
  37
  38 vxmain (arg)
  39 char *arg;
  40 {
  41   char *argv[2];
  42
  43   argv[0] = "";
  44   argv[1] = arg;
  45   main (2, argv, (char **) 0);
  46 }
  47
  48 #else /* ! vxworks */
  49 #  include <stdio.h>
  50 #  include <stdlib.h>
  51 #endif /* ! vxworks */
  52
  53 #ifdef PROTOTYPES
  54 extern int marker1 (void);
  55 extern int marker2 (int a);
  56 extern void marker3 (char *a, char *b);
  57 extern void marker4 (long d);
  58 #else
  59 extern int marker1 ();
  60 extern int marker2 ();
  61 extern void marker3 ();
  62 extern void marker4 ();
  63 #endif
  64
  65 /*
  66  *      This simple classical example of recursion is useful for
  67  *      testing stack backtraces and such.
  68  */
  69
  70 #ifdef PROTOTYPES
  71 int factorial(int);
  72
  73 int
  74 main (int argc, char **argv, char **envp)
  75 #else
  76 int
  77 main (argc, argv, envp)
  78 int argc;
  79 char *argv[], **envp;
  80 #endif
  81 {
  82 #ifdef usestubs
  83     set_debug_traps();  /* set breakpoint 5 here */
  84     breakpoint();
  85 #endif
  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); /* set breakpoint 20 here */
  94     marker3 ("stack", "trace"); /* set breakpoint 21 here */
  95     marker4 (177601976L);
  96     /* We're used by a test that requires malloc, so make sure it is
  97        in the executable.  */
  98     (void)malloc (1);
  99
 100     argc = (argc == 12345); /* This is silly, but we can step off of it */ /* set breakpoint 2 here */
 101     return argc;  /* set breakpoint 10 here */
 102 } /* set breakpoint 10a here */
 103
 104 #ifdef PROTOTYPES
 105 int factorial (int value)
 106 #else
 107 int factorial (value)
 108 int value;
 109 #endif
 110 {
 111   if (value > 1) {  /* set breakpoint 7 here */
 112         value *= factorial (value - 1);
 113     }
 114     return (value); /* set breakpoint 19 here */
 115 }
 116
 117 #ifdef PROTOTYPES
 118 int multi_line_if_conditional (int a, int b, int c)
 119 #else
 120 int multi_line_if_conditional (a, b, c)
 121   int a, b, c;
 122 #endif
 123 {
 124   if (a    /* set breakpoint 3 here */
 125       && b
 126       && c)
 127     return 0;
 128   else
 129     return 1;
 130 }
 131
 132 #ifdef PROTOTYPES
 133 int multi_line_while_conditional (int a, int b, int c)
 134 #else
 135 int multi_line_while_conditional (a, b, c)
 136   int a, b, c;
 137 #endif
 138 {
 139   while (a /* set breakpoint 4 here */
 140       && b
 141       && c)
 142     {
 143       a--, b--, c--;
 144     }
 145   return 0;
 146 }