1#include <stdio.h>
2
3
4__thread int foo, bar __attribute__ ((tls_model("global-dynamic")));
5extern __thread int baz __attribute__ ((tls_model("global-dynamic")));
6extern __thread int foo_ie asm ("foo") __attribute__ ((tls_model("initial-exec")));
7extern __thread int bar_ie asm ("bar") __attribute__ ((tls_model("initial-exec")));
8extern __thread int baz_ie asm ("baz") __attribute__ ((tls_model("initial-exec")));
9
10
11extern int in_dso (void);
12
13int
14in_dso (void)
15{
16 int result = 0;
17 int *ap, *bp, *cp;
18
19 /* Get variables using initial exec model. */
20 fputs (s: "get sum of foo and bar (IE)", stdout);
21 asm ("" ::: "memory");
22 ap = &foo_ie;
23 bp = &bar_ie;
24 printf (format: " = %d\n", *ap + *bp);
25 result |= *ap + *bp != 3;
26 if (*ap != 1)
27 {
28 printf (format: "foo = %d\n", *ap);
29 result = 1;
30 }
31 if (*bp != 2)
32 {
33 printf (format: "bar = %d\n", *bp);
34 result = 1;
35 }
36
37
38 /* Get variables using generic dynamic model or TLSDESC. */
39 fputs (s: "get sum of foo and bar and baz (GD or TLSDESC)", stdout);
40 ap = &foo;
41 bp = &bar;
42 cp = &baz;
43 printf (format: " = %d\n", *ap + *bp + *cp);
44 result |= *ap + *bp + *cp != 6;
45 if (*ap != 1)
46 {
47 printf (format: "foo = %d\n", *ap);
48 result = 1;
49 }
50 if (*bp != 2)
51 {
52 printf (format: "bar = %d\n", *bp);
53 result = 1;
54 }
55 if (*cp != 3)
56 {
57 printf (format: "baz = %d\n", *cp);
58 result = 1;
59 }
60
61 return result;
62}
63

source code of glibc/elf/tst-tlsmod1.c