1 /*
2 * Copyright (C) 2010 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 /* Basic test of setjmp() functionality */
30
31 #include <setjmp.h>
32 #include <stdio.h>
33 #include <stdlib.h>
34
35 #define INT_VALUE1 0x12345678
36 #define INT_VALUE2 0xfedcba98
37
38 #define FLOAT_VALUE1 (1.2345678)
39 #define FLOAT_VALUE2 (9.8765432)
40
41 int dummy_int;
42 double dummy_double;
43
44 /* test that integer registers are restored properly */
45 static void
test_int(void)46 test_int(void)
47 {
48 jmp_buf jumper;
49 register int xx = INT_VALUE1;
50
51 if (setjmp(jumper) == 0) {
52 xx = INT_VALUE2;
53 longjmp(jumper, 1);
54 } else {
55 if (xx != INT_VALUE1) {
56 fprintf(stderr, "setjmp() is broken for integer registers !\n");
57 exit(1);
58 }
59 }
60 dummy_int = xx;
61 }
62
63 static void
test_float(void)64 test_float(void)
65 {
66 jmp_buf jumper;
67 register double xx = FLOAT_VALUE1;
68
69 if (setjmp(jumper) == 0) {
70 xx = FLOAT_VALUE2;
71 longjmp(jumper, 1);
72 } else {
73 if (xx != FLOAT_VALUE1) {
74 fprintf(stderr, "setjmp() is broken for floating point registers !\n");
75 exit(1);
76 }
77 }
78 dummy_double = xx;
79 }
80
main(void)81 int main(void)
82 {
83 test_int();
84 test_float();
85 return 0;
86 }
87