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| author | Al Viro <viro@ftp.linux.org.uk> | 2011-08-18 21:03:49 +0200 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2011-11-02 14:14:53 +0100 |
| commit | 51d34749051a6369093e5067ef67c17f17694921 (patch) | |
| tree | 765e499c73e2797cc5d525f1b4cf590f17aa4132 /arch/um/os-Linux/sys-i386/tls.c | |
| parent | um: merge hard_handler() instances, switch to use of SA_SIGINFO (diff) | |
| download | linux-51d34749051a6369093e5067ef67c17f17694921.tar.xz linux-51d34749051a6369093e5067ef67c17f17694921.zip | |
um: merge arch/um/os-Linux/sys-{i386,x86_64}
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/os-Linux/sys-i386/tls.c')
| -rw-r--r-- | arch/um/os-Linux/sys-i386/tls.c | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/arch/um/os-Linux/sys-i386/tls.c b/arch/um/os-Linux/sys-i386/tls.c deleted file mode 100644 index 281e83ecce3d..000000000000 --- a/arch/um/os-Linux/sys-i386/tls.c +++ /dev/null @@ -1,35 +0,0 @@ -#include <errno.h> -#include <linux/unistd.h> - -#include <sys/syscall.h> -#include <unistd.h> - -#include "sysdep/tls.h" - -/* Checks whether host supports TLS, and sets *tls_min according to the value - * valid on the host. - * i386 host have it == 6; x86_64 host have it == 12, for i386 emulation. */ -void check_host_supports_tls(int *supports_tls, int *tls_min) { - /* Values for x86 and x86_64.*/ - int val[] = {GDT_ENTRY_TLS_MIN_I386, GDT_ENTRY_TLS_MIN_X86_64}; - int i; - - for (i = 0; i < ARRAY_SIZE(val); i++) { - user_desc_t info; - info.entry_number = val[i]; - - if (syscall(__NR_get_thread_area, &info) == 0) { - *tls_min = val[i]; - *supports_tls = 1; - return; - } else { - if (errno == EINVAL) - continue; - else if (errno == ENOSYS) - *supports_tls = 0; - return; - } - } - - *supports_tls = 0; -} |