1 // Inferno utils/6l/obj.c 2 // https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/obj.c 3 // 4 // Copyright 1994-1999 Lucent Technologies Inc. All rights reserved. 5 // Portions Copyright 1995-1997 C H Forsyth (forsyth (a] 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 (a] 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 amd64 32 33 import ( 34 "cmd/internal/obj" 35 "cmd/internal/sys" 36 "cmd/link/internal/ld" 37 "fmt" 38 ) 39 40 func Init() { 41 ld.SysArch = sys.ArchAMD64 42 if obj.GOARCH == "amd64p32" { 43 ld.SysArch = sys.ArchAMD64P32 44 } 45 46 ld.Thearch.Funcalign = funcAlign 47 ld.Thearch.Maxalign = maxAlign 48 ld.Thearch.Minalign = minAlign 49 ld.Thearch.Dwarfregsp = dwarfRegSP 50 ld.Thearch.Dwarfreglr = dwarfRegLR 51 52 ld.Thearch.Adddynrel = adddynrel 53 ld.Thearch.Archinit = archinit 54 ld.Thearch.Archreloc = archreloc 55 ld.Thearch.Archrelocvariant = archrelocvariant 56 ld.Thearch.Asmb = asmb 57 ld.Thearch.Elfreloc1 = elfreloc1 58 ld.Thearch.Elfsetupplt = elfsetupplt 59 ld.Thearch.Gentext = gentext 60 ld.Thearch.Machoreloc1 = machoreloc1 61 ld.Thearch.PEreloc1 = pereloc1 62 ld.Thearch.Lput = ld.Lputl 63 ld.Thearch.Wput = ld.Wputl 64 ld.Thearch.Vput = ld.Vputl 65 ld.Thearch.Append16 = ld.Append16l 66 ld.Thearch.Append32 = ld.Append32l 67 ld.Thearch.Append64 = ld.Append64l 68 ld.Thearch.TLSIEtoLE = tlsIEtoLE 69 70 ld.Thearch.Linuxdynld = "/lib64/ld-linux-x86-64.so.2" 71 ld.Thearch.Freebsddynld = "/libexec/ld-elf.so.1" 72 ld.Thearch.Openbsddynld = "/usr/libexec/ld.so" 73 ld.Thearch.Netbsddynld = "/libexec/ld.elf_so" 74 ld.Thearch.Dragonflydynld = "/usr/libexec/ld-elf.so.2" 75 ld.Thearch.Solarisdynld = "/lib/amd64/ld.so.1" 76 } 77 78 func archinit(ctxt *ld.Link) { 79 switch ld.Headtype { 80 default: 81 ld.Exitf("unknown -H option: %v", ld.Headtype) 82 83 case obj.Hplan9: /* plan 9 */ 84 ld.HEADR = 32 + 8 85 86 if *ld.FlagTextAddr == -1 { 87 *ld.FlagTextAddr = 0x200000 + int64(ld.HEADR) 88 } 89 if *ld.FlagDataAddr == -1 { 90 *ld.FlagDataAddr = 0 91 } 92 if *ld.FlagRound == -1 { 93 *ld.FlagRound = 0x200000 94 } 95 96 case obj.Hdarwin: /* apple MACH */ 97 ld.Machoinit() 98 99 ld.HEADR = ld.INITIAL_MACHO_HEADR 100 if *ld.FlagRound == -1 { 101 *ld.FlagRound = 4096 102 } 103 if *ld.FlagTextAddr == -1 { 104 *ld.FlagTextAddr = 0x1000000 + int64(ld.HEADR) 105 } 106 if *ld.FlagDataAddr == -1 { 107 *ld.FlagDataAddr = 0 108 } 109 110 case obj.Hlinux, /* elf64 executable */ 111 obj.Hfreebsd, /* freebsd */ 112 obj.Hnetbsd, /* netbsd */ 113 obj.Hopenbsd, /* openbsd */ 114 obj.Hdragonfly, /* dragonfly */ 115 obj.Hsolaris: /* solaris */ 116 ld.Elfinit(ctxt) 117 118 ld.HEADR = ld.ELFRESERVE 119 if *ld.FlagTextAddr == -1 { 120 *ld.FlagTextAddr = (1 << 22) + int64(ld.HEADR) 121 } 122 if *ld.FlagDataAddr == -1 { 123 *ld.FlagDataAddr = 0 124 } 125 if *ld.FlagRound == -1 { 126 *ld.FlagRound = 4096 127 } 128 129 case obj.Hnacl: 130 ld.Elfinit(ctxt) 131 *ld.FlagW = true // disable dwarf, which gets confused and is useless anyway 132 ld.HEADR = 0x10000 133 ld.Funcalign = 32 134 if *ld.FlagTextAddr == -1 { 135 *ld.FlagTextAddr = 0x20000 136 } 137 if *ld.FlagDataAddr == -1 { 138 *ld.FlagDataAddr = 0 139 } 140 if *ld.FlagRound == -1 { 141 *ld.FlagRound = 0x10000 142 } 143 144 case obj.Hwindows, obj.Hwindowsgui: /* PE executable */ 145 ld.Peinit(ctxt) 146 147 ld.HEADR = ld.PEFILEHEADR 148 if *ld.FlagTextAddr == -1 { 149 *ld.FlagTextAddr = ld.PEBASE + int64(ld.PESECTHEADR) 150 } 151 if *ld.FlagDataAddr == -1 { 152 *ld.FlagDataAddr = 0 153 } 154 if *ld.FlagRound == -1 { 155 *ld.FlagRound = ld.PESECTALIGN 156 } 157 } 158 159 if *ld.FlagDataAddr != 0 && *ld.FlagRound != 0 { 160 fmt.Printf("warning: -D0x%x is ignored because of -R0x%x\n", uint64(*ld.FlagDataAddr), uint32(*ld.FlagRound)) 161 } 162 } 163
