1 // Inferno utils/5l/obj.c 2 // https://bitbucket.org/inferno-os/inferno-os/src/default/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 arm64 32 33 import ( 34 "cmd/internal/objabi" 35 "cmd/internal/sys" 36 "cmd/link/internal/ld" 37 "fmt" 38 ) 39 40 func Init() (*sys.Arch, ld.Arch) { 41 arch := sys.ArchARM64 42 43 theArch := ld.Arch{ 44 Funcalign: funcAlign, 45 Maxalign: maxAlign, 46 Minalign: minAlign, 47 Dwarfregsp: dwarfRegSP, 48 Dwarfreglr: dwarfRegLR, 49 50 Adddynrel: adddynrel, 51 Archinit: archinit, 52 Archreloc: archreloc, 53 Archrelocvariant: archrelocvariant, 54 Asmb: asmb, 55 Elfreloc1: elfreloc1, 56 Elfsetupplt: elfsetupplt, 57 Gentext: gentext, 58 Machoreloc1: machoreloc1, 59 60 Linuxdynld: "/lib/ld-linux-aarch64.so.1", 61 62 Freebsddynld: "XXX", 63 Openbsddynld: "XXX", 64 Netbsddynld: "XXX", 65 Dragonflydynld: "XXX", 66 Solarisdynld: "XXX", 67 } 68 69 return arch, theArch 70 } 71 72 func archinit(ctxt *ld.Link) { 73 switch ctxt.HeadType { 74 default: 75 ld.Exitf("unknown -H option: %v", ctxt.HeadType) 76 77 case objabi.Hplan9: /* plan 9 */ 78 ld.HEADR = 32 79 80 if *ld.FlagTextAddr == -1 { 81 *ld.FlagTextAddr = 4096 + int64(ld.HEADR) 82 } 83 if *ld.FlagDataAddr == -1 { 84 *ld.FlagDataAddr = 0 85 } 86 if *ld.FlagRound == -1 { 87 *ld.FlagRound = 4096 88 } 89 90 case objabi.Hlinux: /* arm64 elf */ 91 ld.Elfinit(ctxt) 92 ld.HEADR = ld.ELFRESERVE 93 if *ld.FlagTextAddr == -1 { 94 *ld.FlagTextAddr = 0x10000 + int64(ld.HEADR) 95 } 96 if *ld.FlagDataAddr == -1 { 97 *ld.FlagDataAddr = 0 98 } 99 if *ld.FlagRound == -1 { 100 *ld.FlagRound = 0x10000 101 } 102 103 case objabi.Hdarwin: /* apple MACH */ 104 *ld.FlagW = true // disable DWARF generation 105 ld.HEADR = ld.INITIAL_MACHO_HEADR 106 if *ld.FlagTextAddr == -1 { 107 *ld.FlagTextAddr = 4096 + int64(ld.HEADR) 108 } 109 if *ld.FlagDataAddr == -1 { 110 *ld.FlagDataAddr = 0 111 } 112 if *ld.FlagRound == -1 { 113 *ld.FlagRound = 4096 114 } 115 116 case objabi.Hnacl: 117 ld.Elfinit(ctxt) 118 ld.HEADR = 0x10000 119 ld.Funcalign = 16 120 if *ld.FlagTextAddr == -1 { 121 *ld.FlagTextAddr = 0x20000 122 } 123 if *ld.FlagDataAddr == -1 { 124 *ld.FlagDataAddr = 0 125 } 126 if *ld.FlagRound == -1 { 127 *ld.FlagRound = 0x10000 128 } 129 } 130 131 if *ld.FlagDataAddr != 0 && *ld.FlagRound != 0 { 132 fmt.Printf("warning: -D0x%x is ignored because of -R0x%x\n", uint64(*ld.FlagDataAddr), uint32(*ld.FlagRound)) 133 } 134 } 135
