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

template/sysroot/include/bits/c++io.h

@@ -0,0 +1,57 @@
+// Underlying io library details -*- C++ -*-
+
+// Copyright (C) 2000-2024 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library 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.
+
+// This 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 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/>.
+
+/** @file bits/c++io.h
+ *  This is an internal header file, included by other library headers.
+ *  Do not attempt to use it directly. @headername{ios}
+ */
+
+// c_io_stdio.h - Defines for using "C" stdio.h
+
+#ifndef _GLIBCXX_CXX_IO_H
+#define _GLIBCXX_CXX_IO_H 1
+
+#include <cstdio>
+#include <bits/gthr.h>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+#ifdef __GTHREAD_LEGACY_MUTEX_T
+  // The layout of __gthread_mutex_t changed in GCC 13, but libstdc++ doesn't
+  // actually use the basic_filebuf::_M_lock member, so define it consistently
+  // with the old __gthread_mutex_t to avoid an unnecessary layout change:
+  typedef __GTHREAD_LEGACY_MUTEX_T __c_lock;
+#else
+  typedef __gthread_mutex_t __c_lock;
+#endif
+
+  // for basic_file.h
+  typedef FILE __c_file;
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#endif