[glibc] htl: Add tcb-offsets.sym for x86_64

[Samuel Thibault <sthibaul@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fb9e7f6732311ed8874b6afc1ff4a331a9e6ba68

commit fb9e7f6732311ed8874b6afc1ff4a331a9e6ba68
Author: Sergey Bugaev <bugaevc@gmail.com>
Date:   Sun Mar 19 18:10:03 2023 +0300

    htl: Add tcb-offsets.sym for x86_64
    
    The source code is the same as sysdeps/i386/htl/tcb-offsets.sym, but of
    course the produced tcb-offsets.h will be different.
    
    Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
    Message-Id: <20230319151017.531737-21-bugaevc@gmail.com>

Diff:
---
 sysdeps/x86_64/htl/Makefile        | 20 ++++++++++++++++++++
 sysdeps/x86_64/htl/tcb-offsets.sym |  8 ++++++++
 2 files changed, 28 insertions(+)

diff --git a/sysdeps/x86_64/htl/Makefile b/sysdeps/x86_64/htl/Makefile
new file mode 100644
index 0000000000..1ced1d1263
--- /dev/null
+++ b/sysdeps/x86_64/htl/Makefile
@@ -0,0 +1,20 @@
+# Copyright (C) 2020-2023 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, see
+# <https://www.gnu.org/licenses/>.
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
diff --git a/sysdeps/x86_64/htl/tcb-offsets.sym b/sysdeps/x86_64/htl/tcb-offsets.sym
new file mode 100644
index 0000000000..7b7c719369
--- /dev/null
+++ b/sysdeps/x86_64/htl/tcb-offsets.sym
@@ -0,0 +1,8 @@
+#include <sysdep.h>
+#include <tls.h>
+#include <kernel-features.h>
+
+MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads)
+SYSINFO_OFFSET          offsetof (tcbhead_t, sysinfo)
+POINTER_GUARD           offsetof (tcbhead_t, pointer_guard)
+SIGSTATE_OFFSET         offsetof (tcbhead_t, _hurd_sigstate)