2 #include <linux/unistd.h>
3 #include <sys/syscall.h>
4 #include "sysdep/tls.h"
7 /* Checks whether host supports TLS, and sets *tls_min according to the value
9 * i386 host have it == 6; x86_64 host have it == 12, for i386 emulation. */
10 void check_host_supports_tls(int *supports_tls
, int *tls_min
) {
11 /* Values for x86 and x86_64.*/
12 int val
[] = {GDT_ENTRY_TLS_MIN_I386
, GDT_ENTRY_TLS_MIN_X86_64
};
15 for (i
= 0; i
< ARRAY_SIZE(val
); i
++) {
17 info
.entry_number
= val
[i
];
19 if (syscall(__NR_get_thread_area
, &info
) == 0) {
26 else if (errno
== ENOSYS
)