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authorUlrich Drepper <drepper@redhat.com>2003-08-31 18:10:47 +0000
committerUlrich Drepper <drepper@redhat.com>2003-08-31 18:10:47 +0000
commitcd2fbe58e617407e79b64c68cef34224803aa910 (patch)
treeb07a2d7ac749cf125426c8deb41668deeaf6d2c8 /nptl/sysdeps/sparc/tls.h
parentb5bc52efe77e9f0deeb2ee141ea066ab18c927da (diff)
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Update.
2003-08-31  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/x86_64/bsd-_setjmp.S: Use HIDDEN_JUMPTARGET.
	* include/setjmp.h: Add libc_hidden_proto for __sigsetjmp.

	(CFLAGS-clnt_perr.c): Likewise.
Diffstat (limited to 'nptl/sysdeps/sparc/tls.h')
-rw-r--r--nptl/sysdeps/sparc/tls.h119
1 files changed, 119 insertions, 0 deletions
diff --git a/nptl/sysdeps/sparc/tls.h b/nptl/sysdeps/sparc/tls.h
new file mode 100644
index 0000000000..87255941c1
--- /dev/null
+++ b/nptl/sysdeps/sparc/tls.h
@@ -0,0 +1,119 @@
+/* Definitions for thread-local data handling.  NPTL/sparc 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
+
+#include <dl-sysdep.h>
+#ifndef __ASSEMBLER__
+# include <stddef.h>
+# include <stdint.h>
+# include <stdlib.h>
+# include <list.h>
+
+/* Type for the dtv.  */
+typedef union dtv
+{
+  size_t counter;
+  void *pointer;
+} dtv_t;
+
+typedef struct
+{
+  void *tcb;		/* Pointer to the TCB.  Not necessary the
+			   thread descriptor used by libpthread.  */
+  dtv_t *dtv;
+  void *self;
+  int multiple_threads;
+} tcbhead_t;
+
+#else /* __ASSEMBLER__ */
+# include <tcb-offsets.h>
+#endif /* __ASSEMBLER__ */
+
+/* We require TLS support in the tools.  */
+#ifndef HAVE_TLS_SUPPORT
+# error "TLS support is required."
+#endif
+
+/* Signal that TLS support is available.  */
+#define USE_TLS	1
+
+#ifndef __ASSEMBLER__
+/* Get system call information.  */
+# include <sysdep.h>
+
+/* Get the thread descriptor definition.  */
+# include <nptl/descr.h>
+
+register struct pthread *__thread_self __asm__("%g7");
+
+/* 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 sizeof (struct pthread)
+
+/* Alignment requirements for the TCB.  */
+# define TLS_TCB_ALIGN __alignof__ (struct pthread)
+
+/* The TCB can have any size and the memory following the address the
+   thread pointer points to is unspecified.  Allocate the TCB there.  */
+# define TLS_TCB_AT_TP	1
+
+/* Install the dtv pointer.  The pointer passed is to the element with
+   index -1 which contain the length.  */
+# define INSTALL_DTV(descr, dtvp) \
+  ((tcbhead_t *) (descr))->dtv = (dtvp) + 1
+
+/* Install new dtv for current thread.  */
+# define INSTALL_NEW_DTV(DTV) \
+  (((tcbhead_t *) __thread_self)->dtv = (DTV))
+
+/* Return dtv of given thread descriptor.  */
+# define GET_DTV(descr) \
+  (((tcbhead_t *) (descr))->dtv)
+
+/* Code to initially initialize the thread pointer.  */
+# define TLS_INIT_TP(descr, secondcall) \
+  (__thread_self = (__typeof (__thread_self)) (descr), NULL)
+
+/* Return the address of the dtv for the current thread.  */
+# define THREAD_DTV() \
+  (((tcbhead_t *) __thread_self)->dtv)
+
+/* Return the thread descriptor for the current thread.  */
+#define THREAD_SELF  __thread_self
+
+/* Access to data in the thread descriptor is easy.  */
+#define THREAD_GETMEM(descr, member) \
+  descr->member
+#define THREAD_GETMEM_NC(descr, member, idx) \
+  descr->member[idx]
+#define THREAD_SETMEM(descr, member, value) \
+  descr->member = (value)
+#define THREAD_SETMEM_NC(descr, member, idx, value) \
+  descr->member[idx] = (value)
+
+#endif /* !ASSEMBLER */
+
+#endif	/* tls.h */