Source file src/pkg/cmd/link/internal/mips64/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 mips64
    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.ArchMIPS64
    41		if objabi.GOARCH == "mips64le" {
    42			arch = sys.ArchMIPS64LE
    43		}
    44	
    45		theArch := ld.Arch{
    46			Funcalign:        funcAlign,
    47			Maxalign:         maxAlign,
    48			Minalign:         minAlign,
    49			Dwarfregsp:       dwarfRegSP,
    50			Dwarfreglr:       dwarfRegLR,
    51			Adddynrel:        adddynrel,
    52			Archinit:         archinit,
    53			Archreloc:        archreloc,
    54			Archrelocvariant: archrelocvariant,
    55			Asmb:             asmb,
    56			Asmb2:            asmb2,
    57			Elfreloc1:        elfreloc1,
    58			Elfsetupplt:      elfsetupplt,
    59			Gentext:          gentext,
    60			Machoreloc1:      machoreloc1,
    61	
    62			Linuxdynld:     "/lib64/ld64.so.1",
    63			Freebsddynld:   "XXX",
    64			Openbsddynld:   "XXX",
    65			Netbsddynld:    "XXX",
    66			Dragonflydynld: "XXX",
    67			Solarisdynld:   "XXX",
    68		}
    69	
    70		return arch, theArch
    71	}
    72	
    73	func archinit(ctxt *ld.Link) {
    74		switch ctxt.HeadType {
    75		default:
    76			ld.Exitf("unknown -H option: %v", ctxt.HeadType)
    77	
    78		case objabi.Hplan9: /* plan 9 */
    79			ld.HEADR = 32
    80	
    81			if *ld.FlagTextAddr == -1 {
    82				*ld.FlagTextAddr = 16*1024 + int64(ld.HEADR)
    83			}
    84			if *ld.FlagRound == -1 {
    85				*ld.FlagRound = 16 * 1024
    86			}
    87	
    88		case objabi.Hlinux: /* mips64 elf */
    89			ld.Elfinit(ctxt)
    90			ld.HEADR = ld.ELFRESERVE
    91			if *ld.FlagTextAddr == -1 {
    92				*ld.FlagTextAddr = 0x10000 + int64(ld.HEADR)
    93			}
    94			if *ld.FlagRound == -1 {
    95				*ld.FlagRound = 0x10000
    96			}
    97	
    98		case objabi.Hnacl:
    99			ld.Elfinit(ctxt)
   100			ld.HEADR = 0x10000
   101			ld.Funcalign = 16
   102			if *ld.FlagTextAddr == -1 {
   103				*ld.FlagTextAddr = 0x20000
   104			}
   105			if *ld.FlagRound == -1 {
   106				*ld.FlagRound = 0x10000
   107			}
   108		}
   109	}
   110	

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