// Inferno utils/8l/obj.c // https://bitbucket.org/inferno-os/inferno-os/src/master/utils/8l/obj.c // // Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved. // Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net) // Portions Copyright © 1997-1999 Vita Nuova Limited // Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com) // Portions Copyright © 2004,2006 Bruce Ellis // Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net) // Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others // Portions Copyright © 2009 The Go Authors. All rights reserved. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. package x86 import ( "cmd/internal/objabi" "cmd/internal/sys" "cmd/link/internal/ld" ) func Init() (*sys.Arch, ld.Arch) { arch := sys.Arch386 theArch := ld.Arch{ Funcalign: funcAlign, Maxalign: maxAlign, Minalign: minAlign, Dwarfregsp: dwarfRegSP, Dwarfreglr: dwarfRegLR, // 0xCC is INT $3 - breakpoint instruction CodePad: []byte{0xCC}, Plan9Magic: uint32(4*11*11 + 7), Adddynrel: adddynrel, Archinit: archinit, Archreloc: archreloc, Archrelocvariant: archrelocvariant, Gentext: gentext, Machoreloc1: machoreloc1, PEreloc1: pereloc1, ELF: ld.ELFArch{ Linuxdynld: "/lib/ld-linux.so.2", LinuxdynldMusl: "/lib/ld-musl-i386.so.1", Freebsddynld: "/usr/libexec/ld-elf.so.1", Openbsddynld: "/usr/libexec/ld.so", Netbsddynld: "/usr/libexec/ld.elf_so", Solarisdynld: "/lib/ld.so.1", Reloc1: elfreloc1, RelocSize: 8, SetupPLT: elfsetupplt, }, } return arch, theArch } func archinit(ctxt *ld.Link) { switch ctxt.HeadType { default: ld.Exitf("unknown -H option: %v", ctxt.HeadType) case objabi.Hplan9: /* plan 9 */ ld.HEADR = 32 if *ld.FlagRound == -1 { *ld.FlagRound = 4096 } if *ld.FlagTextAddr == -1 { *ld.FlagTextAddr = ld.Rnd(4096, *ld.FlagRound) + int64(ld.HEADR) } case objabi.Hlinux, /* elf32 executable */ objabi.Hfreebsd, objabi.Hnetbsd, objabi.Hopenbsd: ld.Elfinit(ctxt) ld.HEADR = ld.ELFRESERVE if *ld.FlagRound == -1 { *ld.FlagRound = 4096 } if *ld.FlagTextAddr == -1 { *ld.FlagTextAddr = ld.Rnd(0x08048000, *ld.FlagRound) + int64(ld.HEADR) } case objabi.Hwindows: /* PE executable */ // ld.HEADR, ld.FlagTextAddr, ld.FlagRound are set in ld.Peinit return } }