gdb/testsuite/gdb.base/sepdebug.c

   1 /* Copyright 1994-2019 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 3 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, see <http://www.gnu.org/licenses/>.  */
  15
  16 #include <stdio.h>
  17 #include <stdlib.h>
  18
  19 /*
  20  * The following functions do nothing useful.  They are included simply
  21  * as places to try setting breakpoints at.  They are explicitly
  22  * "one-line functions" to verify that this case works (some versions
  23  * of gcc have or have had problems with this).
  24  */
  25
  26 int marker1 (void) { return (0); }
  27 int marker2 (int a) { return (1); } /* set breakpoint 8 here */
  28 void marker3 (char *a, char *b) {}
  29 void marker4 (long d) {} /* set breakpoint 14 here */
  30
  31 /*
  32  *      This simple classical example of recursion is useful for
  33  *      testing stack backtraces and such.
  34  */
  35
  36 int factorial(int);
  37
  38 int
  39 main (int argc, char **argv, char **envp)
  40 {
  41     if (argc == 12345) {  /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */
  42         fprintf (stderr, "usage:  factorial <number>\n");
  43         return 1;
  44     }
  45     printf ("%d\n", factorial (atoi ("6")));  /* set breakpoint 1 here */
  46     /* set breakpoint 12 here */
  47     marker1 ();  /* set breakpoint 11 here */
  48     marker2 (43);
  49     marker3 ("stack", "trace");
  50     marker4 (177601976L);
  51     argc = (argc == 12345); /* This is silly, but we can step off of it */ /* set breakpoint 2 here */
  52     return argc;  /* set breakpoint 10 here */
  53 }
  54
  55 int factorial (int value)
  56 {
  57   if (value > 1) {  /* set breakpoint 7 here */
  58         value *= factorial (value - 1);
  59     }
  60     return (value);
  61 }
  62
  63 int multi_line_if_conditional (int a, int b, int c)
  64 {
  65   if (a    /* set breakpoint 3 here */
  66       && b
  67       && c)
  68     return 0;
  69   else
  70     return 1;
  71 }
  72
  73 int multi_line_while_conditional (int a, int b, int c)
  74 {
  75   while (a /* set breakpoint 4 here */
  76       && b
  77       && c)
  78     {
  79       a--, b--, c--;
  80     }
  81   return 0;
  82 }