| 1 | /* $Id: zero-alt.S 94908 2022-05-07 19:25:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Zero Memory, mach-o version (for arm/sparc).
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2013-2022 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | #ifdef ASM_FORMAT_MACHO
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| 29 | ; Putting it in the code segment/section for now.
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| 30 | .section __TEXT,__text,regular,pure_instructions
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| 31 | .section __TEXT,__const
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| 32 | # define NAME(a) _##a
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| 33 | #elif defined(ASM_FORMAT_ELF) && (defined(RT_ARCH_ARM64) || defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64))
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| 34 | /* Putting it in the rodata segment/section for now. */
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| 35 | .file "zero-alt.S"
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| 36 | .section ".rodata"
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| 37 | # define NAME(a) a
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| 38 | # define NEED_HIDDEN
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| 39 | #else
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| 40 | # error "PORT ME!"
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| 41 | #endif
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| 42 |
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| 43 | /* 64KB of zero memory with various sized labels. */
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| 44 | .globl NAME(g_abRTZeroPage)
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| 45 | #ifdef ASM_FORMAT_ELF
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| 46 | # ifdef NEED_HIDDEN
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| 47 | .hidden NAME(g_abRTZeroPage)
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| 48 | # endif
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| 49 | .type NAME(g_abRTZeroPage),#object
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| 50 | # if defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64)
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| 51 | .size NAME(g_abRTZeroPage),8192
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| 52 | # else
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| 53 | .size NAME(g_abRTZeroPage),4096
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| 54 | # endif
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| 55 | #endif
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| 56 | NAME(g_abRTZeroPage):
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| 57 | .globl NAME(g_abRTZero4K)
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| 58 | #ifdef ASM_FORMAT_ELF
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| 59 | # ifdef NEED_HIDDEN
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| 60 | .hidden NAME(g_abRTZero4K)
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| 61 | # endif
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| 62 | .type NAME(g_abRTZero4K),#object
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| 63 | .size NAME(g_abRTZero4K),4096
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| 64 | #endif
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| 65 | NAME(g_abRTZero4K):
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| 66 | .globl NAME(g_abRTZero8K)
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| 67 | #ifdef ASM_FORMAT_ELF
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| 68 | # ifdef NEED_HIDDEN
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| 69 | .hidden NAME(g_abRTZero8K)
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| 70 | # endif
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| 71 | .type NAME(g_abRTZero8K),#object
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| 72 | .size NAME(g_abRTZero8K),8192
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| 73 | #endif
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| 74 | NAME(g_abRTZero8K):
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| 75 | .globl NAME(g_abRTZero16K)
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| 76 | #ifdef ASM_FORMAT_ELF
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| 77 | # ifdef NEED_HIDDEN
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| 78 | .hidden NAME(g_abRTZero16K)
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| 79 | # endif
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| 80 | .type NAME(g_abRTZero16K),#object
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| 81 | .size NAME(g_abRTZero16K),16384
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| 82 | #endif
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| 83 | NAME(g_abRTZero16K):
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| 84 | .globl NAME(g_abRTZero32K)
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| 85 | #ifdef ASM_FORMAT_ELF
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| 86 | # ifdef NEED_HIDDEN
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| 87 | .hidden NAME(g_abRTZero32K)
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| 88 | # endif
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| 89 | .type NAME(g_abRTZero32K),#object
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| 90 | .size NAME(g_abRTZero32K),32768
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| 91 | #endif
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| 92 | NAME(g_abRTZero32K):
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| 93 | .globl NAME(g_abRTZero64K)
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| 94 | #ifdef ASM_FORMAT_ELF
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| 95 | # ifdef NEED_HIDDEN
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| 96 | .hidden NAME(g_abRTZero64K)
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| 97 | # endif
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| 98 | .type NAME(g_abRTZero64K),#object
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| 99 | .size NAME(g_abRTZero64K),65536
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| 100 | #endif
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| 101 | NAME(g_abRTZero64K):
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| 102 |
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| 103 | #ifdef ASM_FORMAT_MACHO
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| 104 | .space 65536
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| 105 | #elif defined(ASM_FORMAT_ELF)
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| 106 | .skip 65536
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| 107 | #endif
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| 108 |
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