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Diffstat (limited to 'src/cmd/9l/obj.c')
-rw-r--r-- | src/cmd/9l/obj.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/cmd/9l/obj.c b/src/cmd/9l/obj.c new file mode 100644 index 000000000..badb72a1a --- /dev/null +++ b/src/cmd/9l/obj.c @@ -0,0 +1,108 @@ +// Inferno utils/5l/obj.c +// http://code.google.com/p/inferno-os/source/browse/utils/5l/obj.c +// +// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved. +// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net) +// Portions Copyright © 1997-1999 Vita Nuova Limited +// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com) +// Portions Copyright © 2004,2006 Bruce Ellis +// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net) +// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others +// Portions Copyright © 2009 The Go Authors. All rights reserved. +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. + +// Reading object files. + +#include "l.h" +#include "../ld/lib.h" +#include "../ld/elf.h" +#include "../ld/dwarf.h" +#include <ar.h> + +char *thestring = "power64"; +LinkArch *thelinkarch; + +void +linkarchinit(void) +{ + thestring = getgoarch(); + if(strcmp(thestring, "power64le") == 0) + thelinkarch = &linkpower64le; + else + thelinkarch = &linkpower64; +} + +void +archinit(void) +{ + // getgoextlinkenabled is based on GO_EXTLINK_ENABLED when + // Go was built; see ../../make.bash. + if(linkmode == LinkAuto && strcmp(getgoextlinkenabled(), "0") == 0) + linkmode = LinkInternal; + + switch(HEADTYPE) { + default: + if(linkmode == LinkAuto) + linkmode = LinkInternal; + if(linkmode == LinkExternal && strcmp(getgoextlinkenabled(), "1") != 0) + sysfatal("cannot use -linkmode=external with -H %s", headstr(HEADTYPE)); + break; + } + + switch(HEADTYPE) { + default: + diag("unknown -H option"); + errorexit(); + case Hplan9: /* plan 9 */ + HEADR = 32L; + if(INITTEXT == -1) + INITTEXT = 4128; + if(INITDAT == -1) + INITDAT = 0; + if(INITRND == -1) + INITRND = 4096; + break; + case Hlinux: /* power64 elf */ + debug['d'] = 1; // TODO(minux): dynamic linking is not supported yet. + elfinit(); + HEADR = ELFRESERVE; + if(INITTEXT == -1) + INITTEXT = 0x10000 + HEADR; + if(INITDAT == -1) + INITDAT = 0; + if(INITRND == -1) + INITRND = 0x10000; + break; + case Hnacl: + elfinit(); + HEADR = 0x10000; + funcalign = 16; + if(INITTEXT == -1) + INITTEXT = 0x20000; + if(INITDAT == -1) + INITDAT = 0; + if(INITRND == -1) + INITRND = 0x10000; + break; + } + if(INITDAT != 0 && INITRND != 0) + print("warning: -D0x%ux is ignored because of -R0x%ux\n", + INITDAT, INITRND); +} |