1 /* Copyright 1994, 1995, 1999, 2002, 2003, 2004 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 2 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, write to the Free Software 15 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 16 17 Please email any bugs, comments, and/or additions to this file to: 18 bug-gdb@prep.ai.mit.edu */ 19 20 #ifdef vxworks 21 22 # include <stdio.h> 23 24 /* VxWorks does not supply atoi. */ 25 static int 26 atoi (z) 27 char *z; 28 { 29 int i = 0; 30 31 while (*z >= '0' && *z <= '9') 32 i = i * 10 + (*z++ - '0'); 33 return i; 34 } 35 36 /* I don't know of any way to pass an array to VxWorks. This function 37 can be called directly from gdb. */ 38 39 vxmain (arg) 40 char *arg; 41 { 42 char *argv[2]; 43 44 argv[0] = ""; 45 argv[1] = arg; 46 main (2, argv, (char **) 0); 47 } 48 49 #else /* ! vxworks */ 50 # include <stdio.h> 51 # include <stdlib.h> 52 #endif /* ! vxworks */ 53 54 /* 55 * The following functions do nothing useful. They are included simply 56 * as places to try setting breakpoints at. They are explicitly 57 * "one-line functions" to verify that this case works (some versions 58 * of gcc have or have had problems with this). 59 */ 60 61 #ifdef PROTOTYPES 62 int marker1 (void) { return (0); } 63 int marker2 (int a) { return (1); } /* set breakpoint 8 here */ 64 void marker3 (char *a, char *b) {} 65 void marker4 (long d) {} /* set breakpoint 14 here */ 66 #else 67 int marker1 () { return (0); } 68 int marker2 (a) int a; { return (1); } /* set breakpoint 9 here */ 69 void marker3 (a, b) char *a, *b; {} 70 void marker4 (d) long d; {} /* set breakpoint 13 here */ 71 #endif 72 73 /* 74 * This simple classical example of recursion is useful for 75 * testing stack backtraces and such. 76 */ 77 78 #ifdef PROTOTYPES 79 int factorial(int); 80 81 int 82 main (int argc, char **argv, char **envp) 83 #else 84 int 85 main (argc, argv, envp) 86 int argc; 87 char *argv[], **envp; 88 #endif 89 { 90 #ifdef usestubs 91 set_debug_traps(); /* set breakpoint 5 here */ 92 breakpoint(); 93 #endif 94 if (argc == 12345) { /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */ 95 fprintf (stderr, "usage: factorial <number>\n"); 96 return 1; 97 } 98 printf ("%d\n", factorial (atoi ("6"))); /* set breakpoint 1 here */ 99 /* set breakpoint 12 here */ 100 marker1 (); /* set breakpoint 11 here */ 101 marker2 (43); 102 marker3 ("stack", "trace"); 103 marker4 (177601976L); 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 } 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); 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 } 151