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authorRoland McGrath <roland@gnu.org>2003-02-16 03:02:08 +0000
committerRoland McGrath <roland@gnu.org>2003-02-16 03:02:08 +0000
commit8321ef15ae777fc7e7a0716e2e931adb099f310a (patch)
tree988277507d116a9ea2316678c37972c7086387ae /sysdeps/mach/hurd/tls.h
parent7125d3cf1a4820c8e98147160673565427bc57ff (diff)
* sysdeps/mach/hurd/tls.h: New file.
* sysdeps/mach/hurd/i386/tls.h: New file.
Diffstat (limited to 'sysdeps/mach/hurd/tls.h')
-rw-r--r--sysdeps/mach/hurd/tls.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/tls.h b/sysdeps/mach/hurd/tls.h
new file mode 100644
index 0000000000..f550ed3a51
--- /dev/null
+++ b/sysdeps/mach/hurd/tls.h
@@ -0,0 +1,55 @@
+/* Definitions for thread-local data handling. Hurd version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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
+#define _TLS_H
+
+#ifdef HAVE_TLS_SUPPORT
+
+/* Type for the dtv. */
+typedef union dtv
+{
+ size_t counter;
+ void *pointer;
+} dtv_t;
+
+
+/* Type of the TCB. */
+typedef struct
+{
+ void *tcb; /* Points to this structure. */
+ dtv_t *dtv; /* Vector of pointers to TLS data. */
+ thread_t self; /* This thread's control port. */
+} tcbhead_t;
+
+/* This is the size of the initial TCB. */
+# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the initial TCB. */
+# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
+
+/* This is the size of the TCB. */
+# define TLS_TCB_SIZE TLS_INIT_TCB_SIZE /* XXX */
+
+/* Alignment requirements for the TCB. */
+# define TLS_TCB_ALIGN TLS_INIT_TCB_ALIGN /* XXX */
+
+#endif /* HAVE_TLS_SUPPORT */
+
+#endif /* tls.h */