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Source file src/pkg/cmd/link/internal/s390x/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 s390x
    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.ArchS390X
    41	
    42		theArch := ld.Arch{
    43			Funcalign:  funcAlign,
    44			Maxalign:   maxAlign,
    45			Minalign:   minAlign,
    46			Dwarfregsp: dwarfRegSP,
    47			Dwarfreglr: dwarfRegLR,
    48	
    49			Adddynrel:        adddynrel,
    50			Archinit:         archinit,
    51			Archreloc:        archreloc,
    52			Archrelocvariant: archrelocvariant,
    53			Asmb:             asmb,  // in asm.go
    54			Asmb2:            asmb2, // in asm.go
    55			Elfreloc1:        elfreloc1,
    56			Elfsetupplt:      elfsetupplt,
    57			Gentext:          gentext,
    58			Machoreloc1:      machoreloc1,
    59	
    60			Linuxdynld: "/lib64/ld64.so.1",
    61	
    62			// not relevant for s390x
    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.Hlinux: // s390x ELF
    79			ld.Elfinit(ctxt)
    80			ld.HEADR = ld.ELFRESERVE
    81			if *ld.FlagTextAddr == -1 {
    82				*ld.FlagTextAddr = 0x10000 + int64(ld.HEADR)
    83			}
    84			if *ld.FlagRound == -1 {
    85				*ld.FlagRound = 0x10000
    86			}
    87		}
    88	}
    89	

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