1 /* This testcase is part of GDB, the GNU debugger.
2
3 Copyright 2008, 2009, 2010, 2011 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 /*
19 * Test restoration of machine state
20 */
21
22 extern void hide (int);
23
24 /* Test register variable
25 Requires -- compiler honors 'register'. */
26
27 void
register_state(void)28 register_state (void)
29 {
30 register int a = 0;
31
32 hide (a); /* External function to defeat optimization. */
33 a++; /* register_state: set breakpoint here */
34 hide (a); /* register post-change */
35 }
36
37 /* Test auto variable (whatever that means). */
38
39 void
auto_state(void)40 auto_state (void)
41 {
42 auto int a = 0;
43
44 hide (a); /* External function to defeat optimization. */
45 a++; /* auto_state: set breakpoint here */
46 hide (a); /* auto post-change */
47 }
48
49 /* Test function-static variable. */
50
51 void
function_static_state(void)52 function_static_state (void)
53 {
54 static int a = 0;
55
56 hide (a); /* External function to defeat optimization. */
57 a++; /* function_static_state: set breakpoint here */
58 hide (a); /* function static post-change */
59 }
60
61 /* Test module-static variable. */
62
63 static int astatic;
64
65 void
module_static_state(void)66 module_static_state (void)
67 {
68 astatic = 0;
69
70 hide (astatic); /* External function to defeat optimization. */
71 astatic++; /* module_static_state: set breakpoint here */
72 hide (astatic); /* module static post-change */
73 }
74
75 /* Test module-global variable. */
76
77 int aglobal;
78
79 void
module_global_state(void)80 module_global_state (void)
81 {
82 aglobal = 0;
83
84 hide (aglobal); /* External function to defeat optimization. */
85 aglobal++; /* module_global_state: set breakpoint here */
86 hide (aglobal); /* module global post-change */
87 }
88
89 /* main test driver */
90
91 int
main(int argc,char ** argv)92 main (int argc, char **argv)
93 {
94 register_state (); /* begin main */
95 auto_state ();
96 function_static_state ();
97 module_static_state ();
98 module_global_state ();
99
100 return 0; /* end main */
101 }
102