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
call_libc(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
la_version(unsigned int v)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
la_objopen(struct link_map * map,Lmid_t lmid,uintptr_t * cookie)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
la_activity(uintptr_t * cookie,unsigned int flag)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
la_preinit(uintptr_t * cookie)77 la_preinit (uintptr_t* cookie)
78 {
79 call_libc ();
80 }
81