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 (forsyth@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@terzarima.net) 10// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others 11// Portions Copyright © 2016 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 mips 32 33import ( 34 "cmd/internal/objabi" 35 "cmd/internal/sys" 36 "cmd/link/internal/ld" 37 "cmd/link/internal/loader" 38 "internal/buildcfg" 39) 40 41func Init() (*sys.Arch, ld.Arch) { 42 arch := sys.ArchMIPS 43 musl := "/lib/ld-musl-mips.so.1" 44 if buildcfg.GOARCH == "mipsle" { 45 arch = sys.ArchMIPSLE 46 musl = "/lib/ld-musl-mipsel.so.1" 47 } 48 49 theArch := ld.Arch{ 50 Funcalign: FuncAlign, 51 Maxalign: MaxAlign, 52 Minalign: MinAlign, 53 Dwarfregsp: DWARFREGSP, 54 Dwarfreglr: DWARFREGLR, 55 56 Adddynrel: adddynrel, 57 Archinit: archinit, 58 Archreloc: archreloc, 59 Archrelocvariant: archrelocvariant, 60 Extreloc: extreloc, 61 Gentext: gentext, 62 Machoreloc1: machoreloc1, 63 64 ELF: ld.ELFArch{ 65 Linuxdynld: "/lib/ld.so.1", 66 LinuxdynldMusl: musl, 67 68 Freebsddynld: "XXX", 69 Openbsddynld: "XXX", 70 Netbsddynld: "XXX", 71 Dragonflydynld: "XXX", 72 Solarisdynld: "XXX", 73 74 Reloc1: elfreloc1, 75 RelocSize: 8, 76 SetupPLT: elfsetupplt, 77 78 // Historically GNU ld creates a read-only 79 // .dynamic section. 80 DynamicReadOnly: true, 81 }, 82 } 83 84 return arch, theArch 85} 86 87func archinit(ctxt *ld.Link) { 88 switch ctxt.HeadType { 89 default: 90 ld.Exitf("unknown -H option: %v", ctxt.HeadType) 91 case objabi.Hlinux: /* mips elf */ 92 ld.Elfinit(ctxt) 93 ld.HEADR = ld.ELFRESERVE 94 if *ld.FlagRound == -1 { 95 *ld.FlagRound = 0x10000 96 } 97 if *ld.FlagTextAddr == -1 { 98 *ld.FlagTextAddr = ld.Rnd(0x10000, *ld.FlagRound) + int64(ld.HEADR) 99 } 100 } 101} 102 103func adddynrel(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, s loader.Sym, r loader.Reloc, rIdx int) bool { 104 ld.Exitf("adddynrel currently unimplemented for MIPS") 105 return false 106} 107