1/* Copyright 1994, 1995, 1999, 2002, 2003, 2004, 2007, 2008, 2009, 2010, 2011
2Free 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.  */
22static int
23atoi (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
36vxmain (arg)
37char *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
59int marker1 (void) { return (0); }
60int marker2 (int a) { return (1); } /* set breakpoint 8 here */
61void marker3 (char *a, char *b) {}
62void marker4 (long d) {} /* set breakpoint 14 here */
63#else
64int marker1 () { return (0); }
65int marker2 (a) int a; { return (1); } /* set breakpoint 9 here */
66void marker3 (a, b) char *a, *b; {}
67void 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
76int factorial(int);
77
78int
79main (int argc, char **argv, char **envp)
80#else
81int
82main (argc, argv, envp)
83int argc;
84char *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
106int factorial (int value)
107#else
108int factorial (value)
109int 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
119int multi_line_if_conditional (int a, int b, int c)
120#else
121int 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
134int multi_line_while_conditional (int a, int b, int c)
135#else
136int 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}
148