1// Inferno utils/5l/obj.c 2// https://bitbucket.org/inferno-os/inferno-os/src/master/utils/5l/obj.c 3// 4// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved. 5// Portions Copyright © 1995-1997 C H Forsyth ([email protected]) 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 ([email protected]) 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 31package mips64 32 33import ( 34 "cmd/internal/objabi" 35 "cmd/internal/sys" 36 "cmd/link/internal/ld" 37 "internal/buildcfg" 38) 39 40func Init() (*sys.Arch, ld.Arch) { 41 arch := sys.ArchMIPS64 42 musl := "/lib/ld-musl-mips64.so.1" 43 if buildcfg.GOARCH == "mips64le" { 44 arch = sys.ArchMIPS64LE 45 musl = "/lib/ld-musl-mips64el.so.1" 46 } 47 48 theArch := ld.Arch{ 49 Funcalign: funcAlign, 50 Maxalign: maxAlign, 51 Minalign: minAlign, 52 Dwarfregsp: dwarfRegSP, 53 Dwarfreglr: dwarfRegLR, 54 Adddynrel: adddynrel, 55 Archinit: archinit, 56 Archreloc: archreloc, 57 Archrelocvariant: archrelocvariant, 58 Extreloc: extreloc, 59 Gentext: gentext, 60 Machoreloc1: machoreloc1, 61 62 ELF: ld.ELFArch{ 63 Linuxdynld: "/lib64/ld64.so.1", 64 LinuxdynldMusl: musl, 65 Freebsddynld: "XXX", 66 Openbsddynld: "/usr/libexec/ld.so", 67 Netbsddynld: "XXX", 68 Dragonflydynld: "XXX", 69 Solarisdynld: "XXX", 70 71 Reloc1: elfreloc1, 72 RelocSize: 24, 73 SetupPLT: elfsetupplt, 74 75 // Historically GNU ld creates a read-only 76 // .dynamic section. 77 DynamicReadOnly: true, 78 }, 79 } 80 81 return arch, theArch 82} 83 84func archinit(ctxt *ld.Link) { 85 switch ctxt.HeadType { 86 default: 87 ld.Exitf("unknown -H option: %v", ctxt.HeadType) 88 89 case objabi.Hplan9: /* plan 9 */ 90 ld.HEADR = 32 91 if *ld.FlagRound == -1 { 92 *ld.FlagRound = 16 * 1024 93 } 94 if *ld.FlagTextAddr == -1 { 95 *ld.FlagTextAddr = ld.Rnd(16*1024, *ld.FlagRound) + int64(ld.HEADR) 96 } 97 98 case objabi.Hlinux, /* mips64 elf */ 99 objabi.Hopenbsd: 100 ld.Elfinit(ctxt) 101 ld.HEADR = ld.ELFRESERVE 102 if *ld.FlagRound == -1 { 103 *ld.FlagRound = 0x10000 104 } 105 if *ld.FlagTextAddr == -1 { 106 *ld.FlagTextAddr = ld.Rnd(0x10000, *ld.FlagRound) + int64(ld.HEADR) 107 } 108 } 109 110 dynSymCount = 0 111 gotLocalCount = 0 112 gotSymIndex = 0 113} 114