Source file src/pkg/cmd/link/internal/ppc64/obj.go

     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@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 © 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	)
    38	
    39	func Init() (*sys.Arch, ld.Arch) {
    40		arch := sys.ArchPPC64
    41		if objabi.GOARCH == "ppc64le" {
    42			arch = sys.ArchPPC64LE
    43		}
    44	
    45		theArch := ld.Arch{
    46			Funcalign:  funcAlign,
    47			Maxalign:   maxAlign,
    48			Minalign:   minAlign,
    49			Dwarfregsp: dwarfRegSP,
    50			Dwarfreglr: dwarfRegLR,
    51	
    52			Adddynrel:        adddynrel,
    53			Archinit:         archinit,
    54			Archreloc:        archreloc,
    55			Archrelocvariant: archrelocvariant,
    56			Asmb:             asmb,
    57			Asmb2:            asmb2,
    58			Elfreloc1:        elfreloc1,
    59			Elfsetupplt:      elfsetupplt,
    60			Gentext:          gentext,
    61			Trampoline:       trampoline,
    62			Machoreloc1:      machoreloc1,
    63			Xcoffreloc1:      xcoffreloc1,
    64	
    65			// TODO(austin): ABI v1 uses /usr/lib/ld.so.1,
    66			Linuxdynld: "/lib64/ld64.so.1",
    67	
    68			Freebsddynld:   "XXX",
    69			Openbsddynld:   "XXX",
    70			Netbsddynld:    "XXX",
    71			Dragonflydynld: "XXX",
    72			Solarisdynld:   "XXX",
    73		}
    74	
    75		return arch, theArch
    76	}
    77	
    78	func archinit(ctxt *ld.Link) {
    79		switch ctxt.HeadType {
    80		default:
    81			ld.Exitf("unknown -H option: %v", ctxt.HeadType)
    82	
    83		case objabi.Hplan9: /* plan 9 */
    84			ld.HEADR = 32
    85	
    86			if *ld.FlagTextAddr == -1 {
    87				*ld.FlagTextAddr = 4128
    88			}
    89			if *ld.FlagRound == -1 {
    90				*ld.FlagRound = 4096
    91			}
    92	
    93		case objabi.Hlinux: /* ppc64 elf */
    94			ld.Elfinit(ctxt)
    95			ld.HEADR = ld.ELFRESERVE
    96			if *ld.FlagTextAddr == -1 {
    97				*ld.FlagTextAddr = 0x10000 + int64(ld.HEADR)
    98			}
    99			if *ld.FlagRound == -1 {
   100				*ld.FlagRound = 0x10000
   101			}
   102	
   103		case objabi.Hnacl:
   104			ld.Elfinit(ctxt)
   105			ld.HEADR = 0x10000
   106			ld.Funcalign = 16
   107			if *ld.FlagTextAddr == -1 {
   108				*ld.FlagTextAddr = 0x20000
   109			}
   110			if *ld.FlagRound == -1 {
   111				*ld.FlagRound = 0x10000
   112			}
   113	
   114		case objabi.Haix:
   115			ld.Xcoffinit(ctxt)
   116		}
   117	}
   118	

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