From 99da2f789ca92aa52eeca07b97aee2cbd3d60fca Mon Sep 17 00:00:00 2001
From: bb-cat <ningyu9@huawei.com>
Date: Wed, 2 Mar 2022 15:00:07 +0800
Subject: [PATCH 09/16] include: add thread_pointer.h from Glibc Implementation
 was taken from the Glibc.

https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=8dbeb0561eeb876f557ac9eef5721912ec074ea5
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=cb976fba4c51ede7bf8cee5035888527c308dfbc

Signed-off-by: Alexander Mikhalitsyn <alexander.mikhalitsyn@virtuozzo.com>
---
 .../arch/aarch64/include/asm/thread_pointer.h | 27 ++++++++++++++
 .../arch/arm/include/asm/thread_pointer.h     | 27 ++++++++++++++
 .../arch/mips/include/asm/thread_pointer.h    | 27 ++++++++++++++
 .../arch/ppc64/include/asm/thread_pointer.h   | 33 +++++++++++++++++
 .../arch/s390/include/asm/thread_pointer.h    | 27 ++++++++++++++
 .../arch/x86/include/asm/thread_pointer.h     | 37 +++++++++++++++++++
 6 files changed, 178 insertions(+)
 create mode 100644 criu/arch/aarch64/include/asm/thread_pointer.h
 create mode 100644 criu/arch/arm/include/asm/thread_pointer.h
 create mode 100644 criu/arch/mips/include/asm/thread_pointer.h
 create mode 100644 criu/arch/ppc64/include/asm/thread_pointer.h
 create mode 100644 criu/arch/s390/include/asm/thread_pointer.h
 create mode 100644 criu/arch/x86/include/asm/thread_pointer.h

diff --git a/criu/arch/aarch64/include/asm/thread_pointer.h b/criu/arch/aarch64/include/asm/thread_pointer.h
new file mode 100644
index 0000000..f7e0706
--- /dev/null
+++ b/criu/arch/aarch64/include/asm/thread_pointer.h
@@ -0,0 +1,27 @@
+/* __thread_pointer definition.  Generic version.
+   Copyright (C) 2021 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/>.  */
+
+#ifndef _SYS_THREAD_POINTER_H
+#define _SYS_THREAD_POINTER_H
+
+static inline void *__criu_thread_pointer(void)
+{
+	return __builtin_thread_pointer();
+}
+
+#endif /* _SYS_THREAD_POINTER_H */
diff --git a/criu/arch/arm/include/asm/thread_pointer.h b/criu/arch/arm/include/asm/thread_pointer.h
new file mode 100644
index 0000000..f7e0706
--- /dev/null
+++ b/criu/arch/arm/include/asm/thread_pointer.h
@@ -0,0 +1,27 @@
+/* __thread_pointer definition.  Generic version.
+   Copyright (C) 2021 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/>.  */
+
+#ifndef _SYS_THREAD_POINTER_H
+#define _SYS_THREAD_POINTER_H
+
+static inline void *__criu_thread_pointer(void)
+{
+	return __builtin_thread_pointer();
+}
+
+#endif /* _SYS_THREAD_POINTER_H */
diff --git a/criu/arch/mips/include/asm/thread_pointer.h b/criu/arch/mips/include/asm/thread_pointer.h
new file mode 100644
index 0000000..f7e0706
--- /dev/null
+++ b/criu/arch/mips/include/asm/thread_pointer.h
@@ -0,0 +1,27 @@
+/* __thread_pointer definition.  Generic version.
+   Copyright (C) 2021 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/>.  */
+
+#ifndef _SYS_THREAD_POINTER_H
+#define _SYS_THREAD_POINTER_H
+
+static inline void *__criu_thread_pointer(void)
+{
+	return __builtin_thread_pointer();
+}
+
+#endif /* _SYS_THREAD_POINTER_H */
diff --git a/criu/arch/ppc64/include/asm/thread_pointer.h b/criu/arch/ppc64/include/asm/thread_pointer.h
new file mode 100644
index 0000000..304516f
--- /dev/null
+++ b/criu/arch/ppc64/include/asm/thread_pointer.h
@@ -0,0 +1,33 @@
+/* __thread_pointer definition.  powerpc version.
+   Copyright (C) 2021 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/>.  */
+
+#ifndef _SYS_THREAD_POINTER_H
+#define _SYS_THREAD_POINTER_H
+
+#ifdef __powerpc64__
+register void *__thread_register asm("r13");
+#else
+register void *__thread_register asm("r2");
+#endif
+
+static inline void *__criu_thread_pointer(void)
+{
+	return __thread_register;
+}
+
+#endif /* _SYS_THREAD_POINTER_H */
\ No newline at end of file
diff --git a/criu/arch/s390/include/asm/thread_pointer.h b/criu/arch/s390/include/asm/thread_pointer.h
new file mode 100644
index 0000000..f7e0706
--- /dev/null
+++ b/criu/arch/s390/include/asm/thread_pointer.h
@@ -0,0 +1,27 @@
+/* __thread_pointer definition.  Generic version.
+   Copyright (C) 2021 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/>.  */
+
+#ifndef _SYS_THREAD_POINTER_H
+#define _SYS_THREAD_POINTER_H
+
+static inline void *__criu_thread_pointer(void)
+{
+	return __builtin_thread_pointer();
+}
+
+#endif /* _SYS_THREAD_POINTER_H */
diff --git a/criu/arch/x86/include/asm/thread_pointer.h b/criu/arch/x86/include/asm/thread_pointer.h
new file mode 100644
index 0000000..08603ae
--- /dev/null
+++ b/criu/arch/x86/include/asm/thread_pointer.h
@@ -0,0 +1,37 @@
+/* __thread_pointer definition.  x86 version.
+   Copyright (C) 2021 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/>.  */
+
+#ifndef _SYS_THREAD_POINTER_H
+#define _SYS_THREAD_POINTER_H
+
+static inline void *__criu_thread_pointer(void)
+{
+#if __GNUC_PREREQ(11, 1)
+	return __builtin_thread_pointer();
+#else
+	void *__result;
+#ifdef __x86_64__
+	__asm__("mov %%fs:0, %0" : "=r"(__result));
+#else
+	__asm__("mov %%gs:0, %0" : "=r"(__result));
+#endif
+	return __result;
+#endif /* !GCC 11 */
+}
+
+#endif /* _SYS_THREAD_POINTER_H */
\ No newline at end of file
-- 
2.30.0

