1 // Inferno utils/5l/obj.c 2 // http://code.google.com/p/inferno-os/source/browse/utils/5l/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 ppc64 32 33 import ( 34 "cmd/internal/obj" 35 "cmd/link/internal/ld" 36 "fmt" 37 "log" 38 ) 39 40 // Reading object files. 41 42 func Main() { 43 linkarchinit() 44 ld.Ldmain() 45 } 46 47 func linkarchinit() { 48 ld.Thestring = obj.Getgoarch() 49 if ld.Thestring == "ppc64le" { 50 ld.Thelinkarch = &ld.Linkppc64le 51 } else { 52 ld.Thelinkarch = &ld.Linkppc64 53 } 54 55 ld.Thearch.Thechar = thechar 56 ld.Thearch.Ptrsize = ld.Thelinkarch.Ptrsize 57 ld.Thearch.Intsize = ld.Thelinkarch.Ptrsize 58 ld.Thearch.Regsize = ld.Thelinkarch.Regsize 59 ld.Thearch.Funcalign = FuncAlign 60 ld.Thearch.Maxalign = MaxAlign 61 ld.Thearch.Minlc = MINLC 62 ld.Thearch.Dwarfregsp = DWARFREGSP 63 ld.Thearch.Dwarfreglr = DWARFREGLR 64 65 ld.Thearch.Adddynrel = adddynrel 66 ld.Thearch.Archinit = archinit 67 ld.Thearch.Archreloc = archreloc 68 ld.Thearch.Archrelocvariant = archrelocvariant 69 ld.Thearch.Asmb = asmb 70 ld.Thearch.Elfreloc1 = elfreloc1 71 ld.Thearch.Elfsetupplt = elfsetupplt 72 ld.Thearch.Gentext = gentext 73 ld.Thearch.Machoreloc1 = machoreloc1 74 if ld.Thelinkarch == &ld.Linkppc64le { 75 ld.Thearch.Lput = ld.Lputl 76 ld.Thearch.Wput = ld.Wputl 77 ld.Thearch.Vput = ld.Vputl 78 } else { 79 ld.Thearch.Lput = ld.Lputb 80 ld.Thearch.Wput = ld.Wputb 81 ld.Thearch.Vput = ld.Vputb 82 } 83 84 // TODO(austin): ABI v1 uses /usr/lib/ld.so.1 85 ld.Thearch.Linuxdynld = "/lib64/ld64.so.1" 86 87 ld.Thearch.Freebsddynld = "XXX" 88 ld.Thearch.Openbsddynld = "XXX" 89 ld.Thearch.Netbsddynld = "XXX" 90 ld.Thearch.Dragonflydynld = "XXX" 91 ld.Thearch.Solarisdynld = "XXX" 92 } 93 94 func archinit() { 95 // getgoextlinkenabled is based on GO_EXTLINK_ENABLED when 96 // Go was built; see ../../make.bash. 97 if ld.Linkmode == ld.LinkAuto && obj.Getgoextlinkenabled() == "0" { 98 ld.Linkmode = ld.LinkInternal 99 } 100 101 switch ld.HEADTYPE { 102 default: 103 if ld.Linkmode == ld.LinkAuto { 104 ld.Linkmode = ld.LinkInternal 105 } 106 if ld.Linkmode == ld.LinkExternal && obj.Getgoextlinkenabled() != "1" { 107 log.Fatalf("cannot use -linkmode=external with -H %s", ld.Headstr(int(ld.HEADTYPE))) 108 } 109 } 110 111 switch ld.HEADTYPE { 112 default: 113 ld.Exitf("unknown -H option: %v", ld.HEADTYPE) 114 115 case obj.Hplan9: /* plan 9 */ 116 ld.HEADR = 32 117 118 if ld.INITTEXT == -1 { 119 ld.INITTEXT = 4128 120 } 121 if ld.INITDAT == -1 { 122 ld.INITDAT = 0 123 } 124 if ld.INITRND == -1 { 125 ld.INITRND = 4096 126 } 127 128 case obj.Hlinux: /* ppc64 elf */ 129 if ld.Thestring == "ppc64" { 130 ld.Debug['d'] = 1 // TODO(austin): ELF ABI v1 not supported yet 131 } 132 ld.Elfinit() 133 ld.HEADR = ld.ELFRESERVE 134 if ld.INITTEXT == -1 { 135 ld.INITTEXT = 0x10000 + int64(ld.HEADR) 136 } 137 if ld.INITDAT == -1 { 138 ld.INITDAT = 0 139 } 140 if ld.INITRND == -1 { 141 ld.INITRND = 0x10000 142 } 143 144 case obj.Hnacl: 145 ld.Elfinit() 146 ld.HEADR = 0x10000 147 ld.Funcalign = 16 148 if ld.INITTEXT == -1 { 149 ld.INITTEXT = 0x20000 150 } 151 if ld.INITDAT == -1 { 152 ld.INITDAT = 0 153 } 154 if ld.INITRND == -1 { 155 ld.INITRND = 0x10000 156 } 157 } 158 159 if ld.INITDAT != 0 && ld.INITRND != 0 { 160 fmt.Printf("warning: -D0x%x is ignored because of -R0x%x\n", uint64(ld.INITDAT), uint32(ld.INITRND)) 161 } 162 } 163
