| 1 | # $Id: op-darwin.sed 4541 2007-09-05 19:32:48Z vboxsync $
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| 2 | ## @file
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| 3 | #
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| 4 | # SED script for transforming op.S (i386 ELF from GNU/linux) into
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| 5 | # something that the Darwin (Mac OS X) assembler can make use of.
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| 6 | #
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| 7 |
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| 8 | #
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| 9 | # Copyright (C) 2006-2007 innotek GmbH
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| 10 | #
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| 11 | # This file is part of VirtualBox Open Source Edition (OSE), as
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| 12 | # available from http://www.virtualbox.org. This file is free software;
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| 13 | # you can redistribute it and/or modify it under the terms of the GNU
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| 14 | # General Public License as published by the Free Software Foundation,
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| 15 | # in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 16 | # distribution. VirtualBox OSE is distributed in the hope that it will
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| 17 | # be useful, but WITHOUT ANY WARRANTY of any kind.
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| 18 |
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| 19 | # This is a generic transformation, only encountered with i386-elf-gcc-3.4.3 so far.
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| 20 | s/^\([[:blank:]]*\)\//\1#/
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| 21 |
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| 22 | # Darwin doesn't grok .type and .size, remove those lines.
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| 23 | /^[[:blank:]]*\.type[[:blank:]]/d
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| 24 | /^[[:blank:]]*\.size[[:blank:]]/d
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| 25 |
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| 26 | # Darwin names the .rodata section '.const'.
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| 27 | s/^[[:blank:]]*\.section[[:blank:]][[:blank:]]*\.rodata[[:blank:]]*$/\t.const/
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| 28 |
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| 29 | # Darwin doesn't grok the the .note.GNU-stack section, remove that line.
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| 30 | /^[[:blank:]]*\.section[[:blank:]][[:blank:]]*\.note\.GNU-stack,/d
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| 31 |
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| 32 | # .zero seems to be similar to .spaces...
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| 33 | s/^\([[:blank:]]*\)\.zero[[:blank:]][[:blank:]]*\([0-9][0-9]*\)/\1.space \2/
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| 34 |
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| 35 | # It looks like if .align is taking a byte count on linux and a power of
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| 36 | # two on Darwin, translate to power of two.
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| 37 | s/\.align 128/\.align 7/
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| 38 | s/\.align 64/\.align 6/
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| 39 | s/\.align 32/\.align 5/
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| 40 | s/\.align 16/\.align 4/
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| 41 | s/\.align 8/\.align 3/
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| 42 | s/\.align 4/\.align 2/
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| 43 | s/\.align 2/\.align 1/
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| 44 |
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| 45 |
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| 46 | # Darwin uses underscore prefixed names like the DOS based i386 OSes
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| 47 | # linux does. So, all global symbols needs to be translated.
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| 48 | s/^[[:blank:]]*\.globl[[:blank:]][[:blank:]]*\([^\t\n ]*\)[[:blank:]]*$/#define \1 _\1\n.globl \1/
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| 49 |
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| 50 | # special hack for __op_labelN
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| 51 | s/__op_label\([0-9]\)/___op_label\1/g
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| 52 |
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