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For #22095 Change-Id: Idcfdfe8a94db8626392658bb93429454238f648a Reviewed-on: https://go-review.googlesource.com/70835 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
139 lines
4 KiB
Go
139 lines
4 KiB
Go
// Inferno utils/5l/obj.c
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// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/5l/obj.c
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//
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// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
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// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
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// Portions Copyright © 1997-1999 Vita Nuova Limited
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// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
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// Portions Copyright © 2004,2006 Bruce Ellis
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// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
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// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
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// Portions Copyright © 2009 The Go Authors. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package arm
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import (
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"cmd/internal/objabi"
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"cmd/internal/sys"
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"cmd/link/internal/ld"
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"fmt"
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)
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func Init() (*sys.Arch, ld.Arch) {
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arch := sys.ArchARM
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theArch := ld.Arch{
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Funcalign: funcAlign,
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Maxalign: maxAlign,
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Minalign: minAlign,
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Dwarfregsp: dwarfRegSP,
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Dwarfreglr: dwarfRegLR,
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Adddynrel: adddynrel,
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Archinit: archinit,
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Archreloc: archreloc,
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Archrelocvariant: archrelocvariant,
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Trampoline: trampoline,
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Asmb: asmb,
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Elfreloc1: elfreloc1,
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Elfsetupplt: elfsetupplt,
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Gentext: gentext,
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Machoreloc1: machoreloc1,
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Linuxdynld: "/lib/ld-linux.so.3", // 2 for OABI, 3 for EABI
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Freebsddynld: "/usr/libexec/ld-elf.so.1",
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Openbsddynld: "/usr/libexec/ld.so",
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Netbsddynld: "/libexec/ld.elf_so",
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Dragonflydynld: "XXX",
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Solarisdynld: "XXX",
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}
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return arch, theArch
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}
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func archinit(ctxt *ld.Link) {
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switch ctxt.HeadType {
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default:
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ld.Exitf("unknown -H option: %v", ctxt.HeadType)
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case objabi.Hplan9: /* plan 9 */
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ld.HEADR = 32
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if *ld.FlagTextAddr == -1 {
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*ld.FlagTextAddr = 4128
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}
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if *ld.FlagDataAddr == -1 {
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*ld.FlagDataAddr = 0
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}
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if *ld.FlagRound == -1 {
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*ld.FlagRound = 4096
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}
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case objabi.Hlinux, /* arm elf */
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objabi.Hfreebsd,
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objabi.Hnetbsd,
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objabi.Hopenbsd:
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*ld.FlagD = false
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// with dynamic linking
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ld.Elfinit(ctxt)
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ld.HEADR = ld.ELFRESERVE
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if *ld.FlagTextAddr == -1 {
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*ld.FlagTextAddr = 0x10000 + int64(ld.HEADR)
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}
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if *ld.FlagDataAddr == -1 {
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*ld.FlagDataAddr = 0
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}
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if *ld.FlagRound == -1 {
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*ld.FlagRound = 0x10000
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}
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case objabi.Hnacl:
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ld.Elfinit(ctxt)
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ld.HEADR = 0x10000
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ld.Funcalign = 16
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if *ld.FlagTextAddr == -1 {
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*ld.FlagTextAddr = 0x20000
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}
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if *ld.FlagDataAddr == -1 {
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*ld.FlagDataAddr = 0
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}
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if *ld.FlagRound == -1 {
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*ld.FlagRound = 0x10000
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}
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case objabi.Hdarwin: /* apple MACH */
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*ld.FlagW = true // disable DWARF generation
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ld.HEADR = ld.INITIAL_MACHO_HEADR
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if *ld.FlagTextAddr == -1 {
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*ld.FlagTextAddr = 4096 + int64(ld.HEADR)
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}
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if *ld.FlagDataAddr == -1 {
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*ld.FlagDataAddr = 0
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}
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if *ld.FlagRound == -1 {
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*ld.FlagRound = 4096
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}
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}
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if *ld.FlagDataAddr != 0 && *ld.FlagRound != 0 {
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fmt.Printf("warning: -D0x%x is ignored because of -R0x%x\n", uint64(*ld.FlagDataAddr), uint32(*ld.FlagRound))
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}
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}
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