symkind.go

Documentation: cmd/internal/objabi

     1  // Derived from Inferno utils/6l/l.h and related files.
     2  // https://bitbucket.org/inferno-os/inferno-os/src/master/utils/6l/l.h
     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 objabi
    32  
    33  // A SymKind describes the kind of memory represented by a symbol.
    34  type SymKind uint8
    35  
    36  // Defined SymKind values.
    37  // These are used to index into cmd/link/internal/sym/AbiSymKindToSymKind
    38  //
    39  // TODO(rsc): Give idiomatic Go names.
    40  //go:generate stringer -type=SymKind
    41  const (
    42  	// An otherwise invalid zero value for the type
    43  	Sxxx SymKind = iota
    44  	// Executable instructions
    45  	STEXT
    46  	// Read only static data
    47  	SRODATA
    48  	// Static data that does not contain any pointers
    49  	SNOPTRDATA
    50  	// Static data
    51  	SDATA
    52  	// Statically data that is initially all 0s
    53  	SBSS
    54  	// Statically data that is initially all 0s and does not contain pointers
    55  	SNOPTRBSS
    56  	// Thread-local data that is initially all 0s
    57  	STLSBSS
    58  	// Debugging data
    59  	SDWARFCUINFO
    60  	SDWARFCONST
    61  	SDWARFFCN
    62  	SDWARFABSFCN
    63  	SDWARFTYPE
    64  	SDWARFVAR
    65  	SDWARFRANGE
    66  	SDWARFLOC
    67  	SDWARFLINES
    68  	// ABI alias. An ABI alias symbol is an empty symbol with a
    69  	// single relocation with 0 size that references the native
    70  	// function implementation symbol.
    71  	//
    72  	// TODO(austin): Remove this and all uses once the compiler
    73  	// generates real ABI wrappers rather than symbol aliases.
    74  	SABIALIAS
    75  	// Coverage instrumentation counter for libfuzzer.
    76  	SLIBFUZZER_EXTRA_COUNTER
    77  	// Update cmd/link/internal/sym/AbiSymKindToSymKind for new SymKind values.
    78  
    79  )
    80
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