1 files changed, 118 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/misc/zero-alt.S b/src/VBox/Runtime/common/misc/zero-alt.S
new file mode 100644
index 00000000..f1f52869
--- /dev/null
+++ b/src/VBox/Runtime/common/misc/zero-alt.S
@@ -0,0 +1,118 @@
+/* $Id: zero-alt.S $ */
+/** @file
+ * IPRT - Zero Memory, mach-o version (for arm/sparc).
+ */
+
+/*
+ * 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
+ */
+
+
+#ifdef ASM_FORMAT_MACHO
+; Putting it in the code segment/section for now.
+        .section    __TEXT,__text,regular,pure_instructions
+        .section    __TEXT,__const
+# define NAME(a) _##a
+#elif defined(ASM_FORMAT_ELF) && (defined(RT_ARCH_ARM64) || defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64))
+/* Putting it in the rodata segment/section for now. */
+        .file       "zero-alt.S"
+        .section    ".rodata"
+# define NAME(a) a
+# define NEED_HIDDEN
+#else
+# error "PORT ME!"
+#endif
+
+/* 64KB of zero memory with various sized labels. */
+        .globl      NAME(g_abRTZeroPage)
+#ifdef ASM_FORMAT_ELF
+# ifdef NEED_HIDDEN
+        .hidden     NAME(g_abRTZeroPage)
+# endif
+        .type       NAME(g_abRTZeroPage),#object
+# if defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64)
+        .size       NAME(g_abRTZeroPage),8192
+# else
+        .size       NAME(g_abRTZeroPage),4096
+# endif
+#endif
+NAME(g_abRTZeroPage):
+        .globl      NAME(g_abRTZero4K)
+#ifdef ASM_FORMAT_ELF
+# ifdef NEED_HIDDEN
+        .hidden     NAME(g_abRTZero4K)
+# endif
+        .type       NAME(g_abRTZero4K),#object
+        .size       NAME(g_abRTZero4K),4096
+#endif
+NAME(g_abRTZero4K):
+        .globl      NAME(g_abRTZero8K)
+#ifdef ASM_FORMAT_ELF
+# ifdef NEED_HIDDEN
+        .hidden     NAME(g_abRTZero8K)
+# endif
+        .type       NAME(g_abRTZero8K),#object
+        .size       NAME(g_abRTZero8K),8192
+#endif
+NAME(g_abRTZero8K):
+        .globl      NAME(g_abRTZero16K)
+#ifdef ASM_FORMAT_ELF
+# ifdef NEED_HIDDEN
+        .hidden     NAME(g_abRTZero16K)
+# endif
+        .type       NAME(g_abRTZero16K),#object
+        .size       NAME(g_abRTZero16K),16384
+#endif
+NAME(g_abRTZero16K):
+        .globl      NAME(g_abRTZero32K)
+#ifdef ASM_FORMAT_ELF
+# ifdef NEED_HIDDEN
+        .hidden     NAME(g_abRTZero32K)
+# endif
+        .type       NAME(g_abRTZero32K),#object
+        .size       NAME(g_abRTZero32K),32768
+#endif
+NAME(g_abRTZero32K):
+        .globl      NAME(g_abRTZero64K)
+#ifdef ASM_FORMAT_ELF
+# ifdef NEED_HIDDEN
+        .hidden     NAME(g_abRTZero64K)
+# endif
+        .type       NAME(g_abRTZero64K),#object
+        .size       NAME(g_abRTZero64K),65536
+#endif
+NAME(g_abRTZero64K):
+
+#ifdef ASM_FORMAT_MACHO
+        .space      65536
+#elif defined(ASM_FORMAT_ELF)
+        .skip       65536
+#endif
+