mirror of https://github.com/golang/go.git
109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
// Inferno utils/5l/obj.c
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// http://code.google.com/p/inferno-os/source/browse/utils/5l/obj.c
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//
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// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
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// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
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// Portions Copyright © 1997-1999 Vita Nuova Limited
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// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
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// Portions Copyright © 2004,2006 Bruce Ellis
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// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
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// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
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// Portions Copyright © 2009 The Go Authors. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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// Reading object files.
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#include "l.h"
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#include "../ld/lib.h"
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#include "../ld/elf.h"
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#include "../ld/dwarf.h"
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#include <ar.h>
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char *thestring = "power64";
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LinkArch *thelinkarch;
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void
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linkarchinit(void)
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{
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thestring = getgoarch();
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if(strcmp(thestring, "power64le") == 0)
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thelinkarch = &linkpower64le;
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else
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thelinkarch = &linkpower64;
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}
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void
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archinit(void)
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{
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// getgoextlinkenabled is based on GO_EXTLINK_ENABLED when
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// Go was built; see ../../make.bash.
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if(linkmode == LinkAuto && strcmp(getgoextlinkenabled(), "0") == 0)
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linkmode = LinkInternal;
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switch(HEADTYPE) {
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default:
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if(linkmode == LinkAuto)
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linkmode = LinkInternal;
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if(linkmode == LinkExternal && strcmp(getgoextlinkenabled(), "1") != 0)
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sysfatal("cannot use -linkmode=external with -H %s", headstr(HEADTYPE));
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break;
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}
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switch(HEADTYPE) {
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default:
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diag("unknown -H option");
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errorexit();
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case Hplan9: /* plan 9 */
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HEADR = 32L;
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if(INITTEXT == -1)
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INITTEXT = 4128;
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if(INITDAT == -1)
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INITDAT = 0;
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if(INITRND == -1)
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INITRND = 4096;
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break;
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case Hlinux: /* power64 elf */
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debug['d'] = 1; // TODO(minux): dynamic linking is not supported yet.
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elfinit();
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HEADR = ELFRESERVE;
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if(INITTEXT == -1)
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INITTEXT = 0x10000 + HEADR;
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if(INITDAT == -1)
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INITDAT = 0;
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if(INITRND == -1)
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INITRND = 0x10000;
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break;
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case Hnacl:
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elfinit();
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HEADR = 0x10000;
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funcalign = 16;
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if(INITTEXT == -1)
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INITTEXT = 0x20000;
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if(INITDAT == -1)
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INITDAT = 0;
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if(INITRND == -1)
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INITRND = 0x10000;
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break;
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}
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if(INITDAT != 0 && INITRND != 0)
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print("warning: -D0x%ux is ignored because of -R0x%ux\n",
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INITDAT, INITRND);
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}
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