libgo/go/debug/plan9obj/plan9obj.go

   1 // Copyright 2014 The Go Authors.  All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 /*
   6  * Plan 9 a.out constants and data structures
   7  */
   8
   9 package plan9obj
  10
  11 // Plan 9 Program header.
  12 type prog struct {
  13         Magic uint32 /* magic number */
  14         Text  uint32 /* size of text segment */
  15         Data  uint32 /* size of initialized data */
  16         Bss   uint32 /* size of uninitialized data */
  17         Syms  uint32 /* size of symbol table */
  18         Entry uint32 /* entry point */
  19         Spsz  uint32 /* size of pc/sp offset table */
  20         Pcsz  uint32 /* size of pc/line number table */
  21 }
  22
  23 // Plan 9 symbol table entries.
  24 type sym struct {
  25         value uint64
  26         typ   byte
  27         name  []byte
  28 }
  29
  30 const (
  31         Magic64 = 0x8000 // 64-bit expanded header
  32
  33         Magic386   = (4*11+0)*11 + 7
  34         MagicAMD64 = (4*26+0)*26 + 7 + Magic64
  35         MagicARM   = (4*20+0)*20 + 7
  36 )