source: vbox/trunk/src/VBox/Runtime/common/misc/zero-alt.S@ 93288

/* $Id: zero-alt.S 93288 2022-01-17 22:14:56Z vboxsync $ */
/** @file
 * IPRT - Zero Memory, mach-o version (for arm/sparc).
 */

/*
 * Copyright (C) 2013-2022 Oracle Corporation
 *
 * This file is part of VirtualBox Open Source Edition (OSE), as
 * available from http://www.virtualbox.org. This file is free software;
 * you can redistribute it and/or modify it under the terms of the GNU
 * General Public License (GPL) as published by the Free Software
 * Foundation, in version 2 as it comes in the "COPYING" file of the
 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
 * VirtualBox OSE 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.
 */


#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_SPARC) || defined(RT_ARCH_SPARC64))
! Putting it in the rodata segment/section for now.
        .file       "zero-alt.S"
        .section    ".rodata"
# define NAME(a) a
#else
# error "PORT ME!"
#endif

/* 64KB of zero memory with various sized labels. */
        .globl      NAME(g_abRTZeroPage)
#ifdef ASM_FORMAT_ELF
# if defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64)
        .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
# if defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64)
        .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
# if defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64)
        .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
# if defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64)
        .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
# if defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64)
        .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
# if defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64)
        .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) && (defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64))
        .skip       65536
#endif