gdb/testsuite/gdb.base/sepdebug.c

   1 /* Copyright 1994, 1995, 1999, 2002, 2003, 2004, 2007
   2 Free 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    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 }