Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 83 insertions, 0 deletions

diff --git a/src/VBox/Runtime/common/misc/zero.asm b/src/VBox/Runtime/common/misc/zero.asm
new file mode 100644
index 00000000..d6111c63
--- /dev/null
+++ b/src/VBox/Runtime/common/misc/zero.asm
@@ -0,0 +1,83 @@
+; $Id: zero.asm $
+;; @file
+; IPRT - Zero Memory.
+;
+
+;
+; Copyright (C) 2013-2023 Oracle and/or its affiliates.
+;
+; This file is part of VirtualBox base platform packages, as
+; available from https://www.virtualbox.org.
+;
+; This program 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, in version 3 of the
+; License.
+;
+; 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; if not, see <https://www.gnu.org/licenses>.
+;
+; The contents of this file may alternatively be used under the terms
+; of the Common Development and Distribution License Version 1.0
+; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+; in the VirtualBox distribution, in which case the provisions of the
+; CDDL are applicable instead of those of the GPL.
+;
+; You may elect to license modified versions of this file under the
+; terms and conditions of either the GPL or the CDDL or both.
+;
+; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+;
+
+;*******************************************************************************
+;* Header Files                                                                *
+;*******************************************************************************
+%include "iprt/asmdefs.mac"
+
+;
+; Section to put this in.
+;
+;       - PE/COFF: Unless we put this in an BSS like section, the linker will
+;         write out 64KB of zeros.  (Tried using .rdata$zz and put it at the end
+;         of that section, but the linker did not reduce the RawDataSize.)  The
+;         assmebler does not let us control the write flag directly, so we emit
+;         a linker directive that switches of the write flag for the section.
+;
+;       - Fallback: Code section.
+;
+%ifdef ASM_FORMAT_PE
+section .drectve info
+        db '-section:.zero,!W '
+section .zero bss align=4096
+%else
+BEGINCODE
+%endif
+
+;;
+; 64KB of zero memory with various sized labels.
+;
+EXPORTEDNAME_EX g_abRTZeroPage, object
+EXPORTEDNAME_EX g_abRTZero4K, object
+EXPORTEDNAME_EX g_abRTZero8K, object
+EXPORTEDNAME_EX g_abRTZero16K, object
+EXPORTEDNAME_EX g_abRTZero32K, object
+EXPORTEDNAME_EX g_abRTZero64K, object
+%ifdef ASM_FORMAT_PE
+        resb  0x10000
+%else
+        times 0x10000/(16*4) dd 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0
+%endif
+%ifdef ASM_FORMAT_ELF
+size g_abRTZeroPage     _4K
+size g_abRTZero4K       _4K
+size g_abRTZero8K       _8K
+size g_abRTZero16K     _16K
+size g_abRTZero32K     _32K
+size g_abRTZero64K     _64K
+%endif
+