l.go

     1  // Inferno utils/5l/asm.c
     2  // https://bitbucket.org/inferno-os/inferno-os/src/master/utils/5l/asm.c
     3  //
     4  //	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
     5  //	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
     6  //	Portions Copyright © 1997-1999 Vita Nuova Limited
     7  //	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
     8  //	Portions Copyright © 2004,2006 Bruce Ellis
     9  //	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
    10  //	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
    11  //	Portions Copyright © 2009 The Go Authors. All rights reserved.
    12  //
    13  // Permission is hereby granted, free of charge, to any person obtaining a copy
    14  // of this software and associated documentation files (the "Software"), to deal
    15  // in the Software without restriction, including without limitation the rights
    16  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    17  // copies of the Software, and to permit persons to whom the Software is
    18  // furnished to do so, subject to the following conditions:
    19  //
    20  // The above copyright notice and this permission notice shall be included in
    21  // all copies or substantial portions of the Software.
    22  //
    23  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    24  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    25  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
    26  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    27  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    28  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    29  // THE SOFTWARE.
    30  
    31  package arm64
    32  
    33  // Writing object files.
    34  
    35  // cmd/9l/l.h from Vita Nuova.
    36  //
    37  //	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
    38  //	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
    39  //	Portions Copyright © 1997-1999 Vita Nuova Limited
    40  //	Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
    41  //	Portions Copyright © 2004,2006 Bruce Ellis
    42  //	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
    43  //	Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
    44  //	Portions Copyright © 2009 The Go Authors. All rights reserved.
    45  //
    46  // Permission is hereby granted, free of charge, to any person obtaining a copy
    47  // of this software and associated documentation files (the "Software"), to deal
    48  // in the Software without restriction, including without limitation the rights
    49  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    50  // copies of the Software, and to permit persons to whom the Software is
    51  // furnished to do so, subject to the following conditions:
    52  //
    53  // The above copyright notice and this permission notice shall be included in
    54  // all copies or substantial portions of the Software.
    55  //
    56  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    57  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    58  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
    59  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    60  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    61  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    62  // THE SOFTWARE.
    63  
    64  const (
    65  	maxAlign  = 32 // max data alignment
    66  	minAlign  = 1  // min data alignment
    67  	funcAlign = 16
    68  )
    69  
    70  /* Used by ../internal/ld/dwarf.go */
    71  const (
    72  	dwarfRegSP = 31
    73  	dwarfRegLR = 30
    74  )
    75
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