| // Inferno utils/8l/obj.c |
| // http://code.google.com/p/inferno-os/source/browse/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 main |
| |
| import ( |
| "cmd/internal/ld" |
| "cmd/internal/obj" |
| "fmt" |
| "log" |
| ) |
| |
| // Reading object files. |
| |
| func main() { |
| linkarchinit() |
| ld.Ldmain() |
| } |
| |
| func linkarchinit() { |
| ld.Thestring = "386" |
| ld.Thelinkarch = &ld.Link386 |
| |
| ld.Thearch.Thechar = thechar |
| ld.Thearch.Ptrsize = ld.Thelinkarch.Ptrsize |
| ld.Thearch.Intsize = ld.Thelinkarch.Ptrsize |
| ld.Thearch.Regsize = ld.Thelinkarch.Regsize |
| ld.Thearch.Funcalign = FuncAlign |
| ld.Thearch.Maxalign = MaxAlign |
| ld.Thearch.Minlc = MINLC |
| ld.Thearch.Dwarfregsp = DWARFREGSP |
| |
| ld.Thearch.Adddynlib = adddynlib |
| ld.Thearch.Adddynrel = adddynrel |
| ld.Thearch.Adddynsym = adddynsym |
| ld.Thearch.Archinit = archinit |
| ld.Thearch.Archreloc = archreloc |
| ld.Thearch.Archrelocvariant = archrelocvariant |
| ld.Thearch.Asmb = asmb |
| ld.Thearch.Elfreloc1 = elfreloc1 |
| ld.Thearch.Elfsetupplt = elfsetupplt |
| ld.Thearch.Gentext = gentext |
| ld.Thearch.Machoreloc1 = machoreloc1 |
| ld.Thearch.PEreloc1 = pereloc1 |
| ld.Thearch.Lput = ld.Lputl |
| ld.Thearch.Wput = ld.Wputl |
| ld.Thearch.Vput = ld.Vputl |
| |
| ld.Thearch.Linuxdynld = "/lib/ld-linux.so.2" |
| ld.Thearch.Freebsddynld = "/usr/libexec/ld-elf.so.1" |
| ld.Thearch.Openbsddynld = "/usr/libexec/ld.so" |
| ld.Thearch.Netbsddynld = "/usr/libexec/ld.elf_so" |
| ld.Thearch.Solarisdynld = "/lib/ld.so.1" |
| } |
| |
| func archinit() { |
| // getgoextlinkenabled is based on GO_EXTLINK_ENABLED when |
| // Go was built; see ../../make.bash. |
| if ld.Linkmode == ld.LinkAuto && obj.Getgoextlinkenabled() == "0" { |
| ld.Linkmode = ld.LinkInternal |
| } |
| |
| switch ld.HEADTYPE { |
| default: |
| if ld.Linkmode == ld.LinkAuto { |
| ld.Linkmode = ld.LinkInternal |
| } |
| if ld.Linkmode == ld.LinkExternal && obj.Getgoextlinkenabled() != "1" { |
| log.Fatalf("cannot use -linkmode=external with -H %s", ld.Headstr(int(ld.HEADTYPE))) |
| } |
| |
| case ld.Hdarwin, |
| ld.Hfreebsd, |
| ld.Hlinux, |
| ld.Hnetbsd, |
| ld.Hopenbsd, |
| ld.Hwindows: |
| break |
| } |
| |
| switch ld.HEADTYPE { |
| default: |
| ld.Diag("unknown -H option") |
| ld.Errorexit() |
| fallthrough |
| |
| case ld.Hplan9: /* plan 9 */ |
| ld.HEADR = 32 |
| |
| if ld.INITTEXT == -1 { |
| ld.INITTEXT = 4096 + 32 |
| } |
| if ld.INITDAT == -1 { |
| ld.INITDAT = 0 |
| } |
| if ld.INITRND == -1 { |
| ld.INITRND = 4096 |
| } |
| |
| case ld.Hdarwin: /* apple MACH */ |
| ld.Machoinit() |
| |
| ld.HEADR = ld.INITIAL_MACHO_HEADR |
| if ld.INITTEXT == -1 { |
| ld.INITTEXT = 4096 + int64(ld.HEADR) |
| } |
| if ld.INITDAT == -1 { |
| ld.INITDAT = 0 |
| } |
| if ld.INITRND == -1 { |
| ld.INITRND = 4096 |
| } |
| |
| case ld.Hlinux, /* elf32 executable */ |
| ld.Hfreebsd, |
| ld.Hnetbsd, |
| ld.Hopenbsd: |
| ld.Elfinit() |
| |
| ld.HEADR = ld.ELFRESERVE |
| if ld.INITTEXT == -1 { |
| ld.INITTEXT = 0x08048000 + int64(ld.HEADR) |
| } |
| if ld.INITDAT == -1 { |
| ld.INITDAT = 0 |
| } |
| if ld.INITRND == -1 { |
| ld.INITRND = 4096 |
| } |
| |
| case ld.Hnacl: |
| ld.Elfinit() |
| ld.HEADR = 0x10000 |
| ld.Funcalign = 32 |
| if ld.INITTEXT == -1 { |
| ld.INITTEXT = 0x20000 |
| } |
| if ld.INITDAT == -1 { |
| ld.INITDAT = 0 |
| } |
| if ld.INITRND == -1 { |
| ld.INITRND = 0x10000 |
| } |
| |
| case ld.Hwindows: /* PE executable */ |
| ld.Peinit() |
| |
| ld.HEADR = ld.PEFILEHEADR |
| if ld.INITTEXT == -1 { |
| ld.INITTEXT = ld.PEBASE + int64(ld.PESECTHEADR) |
| } |
| if ld.INITDAT == -1 { |
| ld.INITDAT = 0 |
| } |
| if ld.INITRND == -1 { |
| ld.INITRND = ld.PESECTALIGN |
| } |
| } |
| |
| if ld.INITDAT != 0 && ld.INITRND != 0 { |
| fmt.Printf("warning: -D0x%x is ignored because of -R0x%x\n", uint64(ld.INITDAT), uint32(ld.INITRND)) |
| } |
| } |