all: more cleanups; NFCI

2024-03-23 20:18:28 +01:00
parent 809a1b3dae
commit 7e839e6962
15 changed files with 220 additions and 156 deletions
@@ -0,0 +1,61 @@
+/* system_features.h -- libc and libc++ features
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2024 Markus Franz Xaver Johannes Oberhumer
+   All Rights Reserved.
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program 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.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer
+   <markus@oberhumer.com>
+ */
+
+#pragma once
+
+#include "system_defs.h"
+
+#if defined(__has_include)
+#if __has_include(<features.h>)
+#include <features.h> // for __GLIBC__
+#endif
+#endif
+
+// aligned_alloc() was added in glibc-2.16
+#if !defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) && defined(__cplusplus)
+#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) && (__GLIBC__ + 0 == 2) &&                      \
+    (__GLIBC_MINOR__ + 0 > 0) && (__GLIBC_MINOR__ + 0 < 16)
+#define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
+#endif
+#endif // _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
+
+#if 0 // TODO later
+// libc++ hardenining
+#if defined(__clang__) && defined(__clang_major__) && (__clang_major__ + 0 >= 18)
+#if DEBUG
+#define _LIBCPP_HARDENING_MODE _LIBCPP_HARDENING_MODE_DEBUG
+#else
+#define _LIBCPP_HARDENING_MODE _LIBCPP_HARDENING_MODE_EXTENSIVE
+#endif
+#endif
+#if defined(__clang__) && defined(__clang_major__) && (__clang_major__ + 0 < 18)
+#if DEBUG
+#define _LIBCPP_ENABLE_ASSERTIONS 1
+#endif
+#endif
+#endif // TODO later
+
+/* vim:set ts=4 sw=4 et: */