1 | /* Check LD_AUDIT with static TLS. |
2 | Copyright (C) 2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library 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 GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <ctype.h> |
20 | #include <stdlib.h> |
21 | #include <link.h> |
22 | |
23 | #define tls_ie __attribute__ ((tls_model ("initial-exec"))) |
24 | |
25 | __thread int tls_var0 tls_ie; |
26 | __thread int tls_var1 tls_ie = 0x10; |
27 | |
28 | /* Defined at tst-auditmod21b.so */ |
29 | extern __thread int tls_var2; |
30 | extern __thread int tls_var3; |
31 | |
32 | static volatile int out; |
33 | |
34 | static void |
35 | call_libc (void) |
36 | { |
37 | /* isspace accesses the initial-exec glibc TLS variables, which are |
38 | setup in glibc initialization. */ |
39 | out = isspace (' '); |
40 | } |
41 | |
42 | unsigned int |
43 | la_version (unsigned int v) |
44 | { |
45 | tls_var0 = 0x1; |
46 | if (tls_var1 != 0x10) |
47 | abort (); |
48 | tls_var1 = 0x20; |
49 | |
50 | tls_var2 = 0x2; |
51 | if (tls_var3 != 0x20) |
52 | abort (); |
53 | tls_var3 = 0x40; |
54 | |
55 | call_libc (); |
56 | |
57 | return LAV_CURRENT; |
58 | } |
59 | |
60 | unsigned int |
61 | la_objopen (struct link_map* map, Lmid_t lmid, uintptr_t* cookie) |
62 | { |
63 | call_libc (); |
64 | *cookie = (uintptr_t) map; |
65 | return 0; |
66 | } |
67 | |
68 | void |
69 | la_activity (uintptr_t* cookie, unsigned int flag) |
70 | { |
71 | if (tls_var0 != 0x1 || tls_var1 != 0x20) |
72 | abort (); |
73 | call_libc (); |
74 | } |
75 | |
76 | void |
77 | la_preinit (uintptr_t* cookie) |
78 | { |
79 | call_libc (); |
80 | } |
81 | |