1 | /* Helper header for test-audit-threads. |
2 | |
3 | Copyright (C) 2018-2022 Free Software Foundation, Inc. |
4 | This file is part of the GNU C Library. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <https://www.gnu.org/licenses/>. */ |
19 | |
20 | /* We use this helper to create a large number of functions, all of |
21 | which will be resolved lazily and thus have their PLT updated. |
22 | This is done to provide enough functions that we can statistically |
23 | observe a thread vs. PLT resolution failure if one exists. */ |
24 | |
25 | #define CONCAT(a, b) a ## b |
26 | #define NUM(x, y) CONCAT (x, y) |
27 | |
28 | #define FUNC10(x) \ |
29 | FUNC (NUM (x, 0)); \ |
30 | FUNC (NUM (x, 1)); \ |
31 | FUNC (NUM (x, 2)); \ |
32 | FUNC (NUM (x, 3)); \ |
33 | FUNC (NUM (x, 4)); \ |
34 | FUNC (NUM (x, 5)); \ |
35 | FUNC (NUM (x, 6)); \ |
36 | FUNC (NUM (x, 7)); \ |
37 | FUNC (NUM (x, 8)); \ |
38 | FUNC (NUM (x, 9)) |
39 | |
40 | #define FUNC100(x) \ |
41 | FUNC10 (NUM (x, 0)); \ |
42 | FUNC10 (NUM (x, 1)); \ |
43 | FUNC10 (NUM (x, 2)); \ |
44 | FUNC10 (NUM (x, 3)); \ |
45 | FUNC10 (NUM (x, 4)); \ |
46 | FUNC10 (NUM (x, 5)); \ |
47 | FUNC10 (NUM (x, 6)); \ |
48 | FUNC10 (NUM (x, 7)); \ |
49 | FUNC10 (NUM (x, 8)); \ |
50 | FUNC10 (NUM (x, 9)) |
51 | |
52 | #define FUNC1000(x) \ |
53 | FUNC100 (NUM (x, 0)); \ |
54 | FUNC100 (NUM (x, 1)); \ |
55 | FUNC100 (NUM (x, 2)); \ |
56 | FUNC100 (NUM (x, 3)); \ |
57 | FUNC100 (NUM (x, 4)); \ |
58 | FUNC100 (NUM (x, 5)); \ |
59 | FUNC100 (NUM (x, 6)); \ |
60 | FUNC100 (NUM (x, 7)); \ |
61 | FUNC100 (NUM (x, 8)); \ |
62 | FUNC100 (NUM (x, 9)) |
63 | |
64 | #define FUNC7000() \ |
65 | FUNC1000 (1); \ |
66 | FUNC1000 (2); \ |
67 | FUNC1000 (3); \ |
68 | FUNC1000 (4); \ |
69 | FUNC1000 (5); \ |
70 | FUNC1000 (6); \ |
71 | FUNC1000 (7); |
72 | |
73 | #ifdef FUNC |
74 | # undef FUNC |
75 | #endif |
76 | |
77 | #ifdef externnum |
78 | # define FUNC(x) extern int CONCAT (retNum, x) (void) |
79 | #endif |
80 | |
81 | #ifdef definenum |
82 | # define FUNC(x) int CONCAT (retNum, x) (void) { return x; } |
83 | #endif |
84 | |
85 | #ifdef callnum |
86 | # define FUNC(x) CONCAT (retNum, x) (); sync_all (x) |
87 | #endif |
88 | |
89 | /* A value of 7000 functions is chosen as an arbitrarily large |
90 | number of functions that will allow us enough attempts to |
91 | verify lazy resolution operation. */ |
92 | FUNC7000 (); |
93 | |