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authorAustin Foxley <austinf@cetoncorp.com>2009-10-17 12:26:24 -0700
committerAustin Foxley <austinf@cetoncorp.com>2009-10-17 12:26:24 -0700
commitc68d0fa2d88fc2134a38d99e7e944828384a7671 (patch)
tree6596943bd1c77f18d6e49d4153ddd3f3d67b49f5 /libpthread/nptl/sysdeps/i386/i686/tls.h
parent9a03e98a3b418f33c347a6023e9320f3a42cb9e4 (diff)
libpthread/nptl: core of the "Native Posix Threading Library" for uClibc
targetting arm,sh,i386,mips,sparc for now Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'libpthread/nptl/sysdeps/i386/i686/tls.h')
-rw-r--r--libpthread/nptl/sysdeps/i386/i686/tls.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/i386/i686/tls.h b/libpthread/nptl/sysdeps/i386/i686/tls.h
new file mode 100644
index 000000000..4025ed8d2
--- /dev/null
+++ b/libpthread/nptl/sysdeps/i386/i686/tls.h
@@ -0,0 +1,36 @@
+/* Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _TLS_H
+
+/* Additional definitions for <tls.h> on i686 and up. */
+
+
+/* Macros to load from and store into segment registers. We can use
+ the 32-bit instructions. */
+#define TLS_GET_GS() \
+ ({ int __seg; __asm ("movl %%gs, %0" : "=q" (__seg)); __seg; })
+#define TLS_SET_GS(val) \
+ __asm ("movl %0, %%gs" :: "q" (val))
+
+
+/* Get the full set of definitions. */
+#include "../tls.h"
+
+#endif /* tls.h */