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// Inferno libmach/setmach.c
// http://code.google.com/p/inferno-os/source/browse/utils/libmach/setmach.c
//
// Copyright © 1994-1999 Lucent Technologies Inc.
// Power PC support Copyright © 1995-2004 C H Forsyth (forsyth@terzarima.net).
// Portions Copyright © 1997-1999 Vita Nuova Limited.
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).
// Revisions Copyright © 2000-2004 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.
#include <u.h>
#include <libc.h>
#include <bio.h>
#include <mach.h>
/* table for selecting machine-dependent parameters */
typedef struct machtab Machtab;
struct machtab
{
char *name; /* machine name */
short type; /* executable type */
short boottype; /* bootable type */
int asstype; /* disassembler code */
Mach *mach; /* machine description */
Machdata *machdata; /* machine functions */
};
/*
extern Mach mmips, msparc, m68020, mi386, mamd64,
marm, mmips2be, mmips2le, mpower, mpower64, malpha, msparc64;
extern Machdata mipsmach, sparcmach, m68020mach, i386mach,
armmach, mipsmach2le, powermach, alphamach, sparc64mach;
*/
extern Mach mi386, mamd64, marm;
extern Machdata i386mach, armmach;
/*
* machine selection table. machines with native disassemblers should
* follow the plan 9 variant in the table; native modes are selectable
* only by name.
*/
Machtab machines[] =
{
{ "386", /*plan 9 386*/
FI386,
FI386B,
AI386,
&mi386,
&i386mach, },
{ "amd64", /*amd64*/
FAMD64,
FAMD64B,
AAMD64,
&mamd64,
&i386mach, },
{ "arm", /*ARM*/
FARM,
FARMB,
AARM,
&marm,
&armmach, },
#ifdef unused
{ "68020", /*68020*/
F68020,
F68020B,
A68020,
&m68020,
&m68020mach, },
{ "68020", /*Next 68040 bootable*/
F68020,
FNEXTB,
A68020,
&m68020,
&m68020mach, },
{ "mips2LE", /*plan 9 mips2 little endian*/
FMIPS2LE,
0,
AMIPS,
&mmips2le,
&mipsmach2le, },
{ "mips", /*plan 9 mips*/
FMIPS,
FMIPSB,
AMIPS,
&mmips,
&mipsmach, },
{ "mips2", /*plan 9 mips2*/
FMIPS2BE,
FMIPSB,
AMIPS,
&mmips2be,
&mipsmach, }, /* shares debuggers with native mips */
{ "mipsco", /*native mips - must follow plan 9*/
FMIPS,
FMIPSB,
AMIPSCO,
&mmips,
&mipsmach, },
{ "sparc", /*plan 9 sparc */
FSPARC,
FSPARCB,
ASPARC,
&msparc,
&sparcmach, },
{ "sunsparc", /*native sparc - must follow plan 9*/
FSPARC,
FSPARCB,
ASUNSPARC,
&msparc,
&sparcmach, },
{ "86", /*8086 - a peach of a machine*/
FI386,
FI386B,
AI8086,
&mi386,
&i386mach, },
{ "power", /*PowerPC*/
FPOWER,
FPOWERB,
APOWER,
&mpower,
&powermach, },
{ "power64", /*PowerPC*/
FPOWER64,
FPOWER64B,
APOWER64,
&mpower64,
&powermach, },
{ "alpha", /*Alpha*/
FALPHA,
FALPHAB,
AALPHA,
&malpha,
&alphamach, },
{ "sparc64", /*plan 9 sparc64 */
FSPARC64,
FSPARCB, /* XXX? */
ASPARC64,
&msparc64,
&sparc64mach, },
#endif
{ 0 }, /*the terminator*/
};
/*
* select a machine by executable file type
*/
void
machbytype(int type)
{
Machtab *mp;
for (mp = machines; mp->name; mp++){
if (mp->type == type || mp->boottype == type) {
asstype = mp->asstype;
machdata = mp->machdata;
break;
}
}
}
/*
* select a machine by name
*/
int
machbyname(char *name)
{
Machtab *mp;
if (!name) {
asstype = AAMD64;
machdata = &i386mach;
mach = &mamd64;
return 1;
}
for (mp = machines; mp->name; mp++){
if (strcmp(mp->name, name) == 0) {
asstype = mp->asstype;
machdata = mp->machdata;
mach = mp->mach;
return 1;
}
}
return 0;
}
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