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
   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 2 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, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19
  20    Please email any bugs, comments, and/or additions to this file to:
  21    bug-gdb@prep.ai.mit.edu  */
  22
  23 #ifdef vxworks
  24
  25 #  include <stdio.h>
  26
  27 /* VxWorks does not supply atoi.  */
  28 static int
  29 atoi (z)
  30      char *z;
  31 {
  32   int i = 0;
  33
  34   while (*z >= '0' && *z <= '9')
  35     i = i * 10 + (*z++ - '0');
  36   return i;
  37 }
  38
  39 /* I don't know of any way to pass an array to VxWorks.  This function
  40    can be called directly from gdb.  */
  41
  42 vxmain (arg)
  43 char *arg;
  44 {
  45   char *argv[2];
  46
  47   argv[0] = "";
  48   argv[1] = arg;
  49   main (2, argv, (char **) 0);
  50 }
  51
  52 #else /* ! vxworks */
  53 #  include <stdio.h>
  54 #  include <stdlib.h>
  55 #endif /* ! vxworks */
  56
  57 #ifdef PROTOTYPES
  58 extern int marker1 (void);
  59 extern int marker2 (int a);
  60 extern void marker3 (char *a, char *b);
  61 extern void marker4 (long d);
  62 #else
  63 extern int marker1 ();
  64 extern int marker2 ();
  65 extern void marker3 ();
  66 extern void marker4 ();
  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 #ifdef usestubs
  87     set_debug_traps();  /* set breakpoint 5 here */
  88     breakpoint();
  89 #endif
  90     if (argc == 12345) {  /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */
  91         fprintf (stderr, "usage:  factorial <number>\n");
  92         return 1;
  93     }
  94     printf ("%d\n", factorial (atoi ("6")));  /* set breakpoint 1 here */
  95     /* set breakpoint 12 here */
  96     marker1 ();  /* set breakpoint 11 here */
  97     marker2 (43); /* set breakpoint 20 here */
  98     marker3 ("stack", "trace"); /* set breakpoint 21 here */
  99     marker4 (177601976L);
 100     /* We're used by a test that requires malloc, so make sure it is
 101        in the executable.  */
 102     (void)malloc (1);
 103
 104     argc = (argc == 12345); /* This is silly, but we can step off of it */ /* set breakpoint 2 here */
 105     return argc;  /* set breakpoint 10 here */
 106 } /* set breakpoint 10a here */
 107
 108 #ifdef PROTOTYPES
 109 int factorial (int value)
 110 #else
 111 int factorial (value)
 112 int value;
 113 #endif
 114 {
 115   if (value > 1) {  /* set breakpoint 7 here */
 116         value *= factorial (value - 1);
 117     }
 118     return (value); /* set breakpoint 19 here */
 119 }
 120
 121 #ifdef PROTOTYPES
 122 int multi_line_if_conditional (int a, int b, int c)
 123 #else
 124 int multi_line_if_conditional (a, b, c)
 125   int a, b, c;
 126 #endif
 127 {
 128   if (a    /* set breakpoint 3 here */
 129       && b
 130       && c)
 131     return 0;
 132   else
 133     return 1;
 134 }
 135
 136 #ifdef PROTOTYPES
 137 int multi_line_while_conditional (int a, int b, int c)
 138 #else
 139 int multi_line_while_conditional (a, b, c)
 140   int a, b, c;
 141 #endif
 142 {
 143   while (a /* set breakpoint 4 here */
 144       && b
 145       && c)
 146     {
 147       a--, b--, c--;
 148     }
 149   return 0;
 150 }