symkind.go raw

   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