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      1 // Inferno utils/5l/obj.c
      2 // https://bitbucket.org/inferno-os/inferno-os/src/default/utils/5l/obj.c
      3 //
      4 //	Copyright  1994-1999 Lucent Technologies Inc.  All rights reserved.
      5 //	Portions Copyright  1995-1997 C H Forsyth (forsyth (a] 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 (a] terzarima.net)
     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 
     31 package ppc64
     32 
     33 import (
     34 	"cmd/internal/objabi"
     35 	"cmd/internal/sys"
     36 	"cmd/link/internal/ld"
     37 	"fmt"
     38 )
     39 
     40 func Init() (*sys.Arch, ld.Arch) {
     41 	arch := sys.ArchPPC64
     42 	if objabi.GOARCH == "ppc64le" {
     43 		arch = sys.ArchPPC64LE
     44 	}
     45 
     46 	theArch := ld.Arch{
     47 		Funcalign:  funcAlign,
     48 		Maxalign:   maxAlign,
     49 		Minalign:   minAlign,
     50 		Dwarfregsp: dwarfRegSP,
     51 		Dwarfreglr: dwarfRegLR,
     52 
     53 		Adddynrel:        adddynrel,
     54 		Archinit:         archinit,
     55 		Archreloc:        archreloc,
     56 		Archrelocvariant: archrelocvariant,
     57 		Asmb:             asmb,
     58 		Elfreloc1:        elfreloc1,
     59 		Elfsetupplt:      elfsetupplt,
     60 		Gentext:          gentext,
     61 		Trampoline:       trampoline,
     62 		Machoreloc1:      machoreloc1,
     63 
     64 		// TODO(austin): ABI v1 uses /usr/lib/ld.so.1,
     65 		Linuxdynld: "/lib64/ld64.so.1",
     66 
     67 		Freebsddynld:   "XXX",
     68 		Openbsddynld:   "XXX",
     69 		Netbsddynld:    "XXX",
     70 		Dragonflydynld: "XXX",
     71 		Solarisdynld:   "XXX",
     72 	}
     73 
     74 	return arch, theArch
     75 }
     76 
     77 func archinit(ctxt *ld.Link) {
     78 	switch ctxt.HeadType {
     79 	default:
     80 		ld.Exitf("unknown -H option: %v", ctxt.HeadType)
     81 
     82 	case objabi.Hplan9: /* plan 9 */
     83 		ld.HEADR = 32
     84 
     85 		if *ld.FlagTextAddr == -1 {
     86 			*ld.FlagTextAddr = 4128
     87 		}
     88 		if *ld.FlagDataAddr == -1 {
     89 			*ld.FlagDataAddr = 0
     90 		}
     91 		if *ld.FlagRound == -1 {
     92 			*ld.FlagRound = 4096
     93 		}
     94 
     95 	case objabi.Hlinux: /* ppc64 elf */
     96 		if ctxt.Arch == sys.ArchPPC64 {
     97 			*ld.FlagD = true // TODO(austin): ELF ABI v1 not supported yet
     98 		}
     99 		ld.Elfinit(ctxt)
    100 		ld.HEADR = ld.ELFRESERVE
    101 		if *ld.FlagTextAddr == -1 {
    102 			*ld.FlagTextAddr = 0x10000 + int64(ld.HEADR)
    103 		}
    104 		if *ld.FlagDataAddr == -1 {
    105 			*ld.FlagDataAddr = 0
    106 		}
    107 		if *ld.FlagRound == -1 {
    108 			*ld.FlagRound = 0x10000
    109 		}
    110 
    111 	case objabi.Hnacl:
    112 		ld.Elfinit(ctxt)
    113 		ld.HEADR = 0x10000
    114 		ld.Funcalign = 16
    115 		if *ld.FlagTextAddr == -1 {
    116 			*ld.FlagTextAddr = 0x20000
    117 		}
    118 		if *ld.FlagDataAddr == -1 {
    119 			*ld.FlagDataAddr = 0
    120 		}
    121 		if *ld.FlagRound == -1 {
    122 			*ld.FlagRound = 0x10000
    123 		}
    124 	}
    125 
    126 	if *ld.FlagDataAddr != 0 && *ld.FlagRound != 0 {
    127 		fmt.Printf("warning: -D0x%x is ignored because of -R0x%x\n", uint64(*ld.FlagDataAddr), uint32(*ld.FlagRound))
    128 	}
    129 }
    130