1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 1992-2019 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 #include <stdio.h> 19 #include <stdlib.h> 20 21 extern int marker1 (void); 22 extern int marker2 (int a); 23 extern void marker3 (char *a, char *b); 24 extern void marker4 (long d); 25 26 /* We're used by a test that requires malloc, so make sure it is in 27 the executable. */ 28 void *need_malloc () 29 { 30 return malloc (1); 31 } 32 33 /* 34 * This simple classical example of recursion is useful for 35 * testing stack backtraces and such. 36 */ 37 38 int factorial(int); 39 40 int 41 main (int argc, char **argv, char **envp) 42 { 43 if (argc == 12345) { /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */ 44 fprintf (stderr, "usage: factorial <number>\n"); 45 return 1; 46 } 47 printf ("%d\n", factorial (atoi ("6"))); /* set breakpoint 1 here */ 48 /* set breakpoint 12 here */ 49 marker1 (); /* set breakpoint 11 here */ 50 marker2 (43); /* set breakpoint 20 here */ 51 marker3 ("stack", "trace"); /* set breakpoint 21 here */ 52 marker4 (177601976L); 53 /* We're used by a test that requires malloc, so make sure it is 54 in the executable. */ 55 (void)malloc (1); 56 57 argc = (argc == 12345); /* This is silly, but we can step off of it */ /* set breakpoint 2 here */ 58 return argc; /* set breakpoint 10 here */ 59 } /* set breakpoint 10a here */ 60 61 int factorial (int value) 62 { 63 if (value > 1) { /* set breakpoint 7 here */ 64 value *= factorial (value - 1); 65 } 66 return (value); /* set breakpoint 19 here */ 67 } 68 69 int multi_line_if_conditional (int a, int b, int c) 70 { 71 if (a /* set breakpoint 3 here */ 72 && b 73 && c) 74 return 0; 75 else 76 return 1; 77 } 78 79 int multi_line_while_conditional (int a, int b, int c) 80 { 81 while (a /* set breakpoint 4 here */ 82 && b 83 && c) 84 { 85 a--, b--, c--; 86 } 87 return 0; 88 } 89