feat: multi-user system, bug fixes, security & performance fixes, and more

2026-03-14 13:28:46 +01:00
parent 576ad34f95
commit 261b536041
389 changed files with 231853 additions and 591 deletions
@@ -0,0 +1,84 @@
+/* Copyright (C) 2012-2024 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   GCC 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 General Public License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _X86GPRINTRIN_H_INCLUDED
+# error "Never use <rtmintrin.h> directly; include <x86gprintrin.h> instead."
+#endif
+
+#ifndef _RTMINTRIN_H_INCLUDED
+#define _RTMINTRIN_H_INCLUDED
+
+#ifndef __RTM__
+#pragma GCC push_options
+#pragma GCC target("rtm")
+#define __DISABLE_RTM__
+#endif /* __RTM__ */
+
+#define _XBEGIN_STARTED		(~0u)
+#define _XABORT_EXPLICIT	(1 << 0)
+#define _XABORT_RETRY		(1 << 1)
+#define _XABORT_CONFLICT	(1 << 2)
+#define _XABORT_CAPACITY	(1 << 3)
+#define _XABORT_DEBUG		(1 << 4)
+#define _XABORT_NESTED		(1 << 5)
+#define _XABORT_CODE(x)		(((x) >> 24) & 0xFF)
+
+/* Start an RTM code region.  Return _XBEGIN_STARTED on success and the
+   abort condition otherwise.  */
+extern __inline unsigned int
+__attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_xbegin (void)
+{
+  return __builtin_ia32_xbegin ();
+}
+
+/* Specify the end of an RTM code region.  If it corresponds to the
+   outermost transaction, then attempts the transaction commit.  If the
+   commit fails, then control is transferred to the outermost transaction
+   fallback handler.  */
+extern __inline void
+__attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_xend (void)
+{
+  __builtin_ia32_xend ();
+}
+
+/* Force an RTM abort condition. The control is transferred to the
+   outermost transaction fallback handler with the abort condition IMM.  */
+#ifdef __OPTIMIZE__
+extern __inline void
+__attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_xabort (const unsigned int __imm)
+{
+  __builtin_ia32_xabort (__imm);
+}
+#else
+#define _xabort(N)  __builtin_ia32_xabort (N)
+#endif /* __OPTIMIZE__ */
+
+#ifdef __DISABLE_RTM__
+#undef __DISABLE_RTM__
+#pragma GCC pop_options
+#endif /* __DISABLE_RTM__ */
+
+#endif /* _RTMINTRIN_H_INCLUDED */