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/* BFD library support routines for the i960 architecture.
Copyright 1990, 1991, 1993, 1994, 1996, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
Hacked by Steve Chamberlain of Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
static bfd_boolean scan_960_mach
PARAMS ((const bfd_arch_info_type *, const char *));
static const bfd_arch_info_type *compatible
PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
/* This routine is provided a string, and tries to work out if it
could possibly refer to the i960 machine pointed at in the
info_struct pointer */
static bfd_boolean
scan_960_mach (ap, string)
const bfd_arch_info_type *ap;
const char *string;
{
unsigned long machine;
int fail_because_not_80960 = FALSE;
/* Look for the string i960 at the front of the string. */
if (strncasecmp ("i960", string, 4) == 0)
{
string += 4;
/* i960 on it's own means core to us. */
if (* string == 0)
return ap->mach == bfd_mach_i960_core;
/* "i960:*" is valid, anything else is not. */
if (* string != ':')
return FALSE;
string ++;
}
/* In some bfds the cpu-id is written as "80960KA", "80960KB",
"80960CA" or "80960MC". */
else if (strncmp ("80960", string, 5) == 0)
{
string += 5;
/* Set this to TRUE here. If a correct matching postfix
is detected below it will be reset to FALSE. */
fail_because_not_80960 = TRUE;
}
/* No match, can't be us. */
else
return FALSE;
if (* string == '\0')
return FALSE;
if (string[0] == 'c' && string[1] == 'o' && string[2] == 'r' &&
string[3] == 'e' && string[4] == '\0')
machine = bfd_mach_i960_core;
else if (strcasecmp (string, "ka_sa") == 0)
machine = bfd_mach_i960_ka_sa;
else if (strcasecmp (string, "kb_sb") == 0)
machine = bfd_mach_i960_kb_sb;
else if (string[1] == '\0' || string[2] != '\0') /* rest are 2-char. */
return FALSE;
else if (string[0] == 'k' && string[1] == 'b')
{ machine = bfd_mach_i960_kb_sb; fail_because_not_80960 = FALSE; }
else if (string[0] == 's' && string[1] == 'b')
machine = bfd_mach_i960_kb_sb;
else if (string[0] == 'm' && string[1] == 'c')
{ machine = bfd_mach_i960_mc; fail_because_not_80960 = FALSE; }
else if (string[0] == 'x' && string[1] == 'a')
machine = bfd_mach_i960_xa;
else if (string[0] == 'c' && string[1] == 'a')
{ machine = bfd_mach_i960_ca; fail_because_not_80960 = FALSE; }
else if (string[0] == 'k' && string[1] == 'a')
{ machine = bfd_mach_i960_ka_sa; fail_because_not_80960 = FALSE; }
else if (string[0] == 's' && string[1] == 'a')
machine = bfd_mach_i960_ka_sa;
else if (string[0] == 'j' && string[1] == 'x')
machine = bfd_mach_i960_jx;
else if (string[0] == 'h' && string[1] == 'x')
machine = bfd_mach_i960_hx;
else
return FALSE;
if (fail_because_not_80960)
return FALSE;
if (machine == ap->mach)
return TRUE;
return FALSE;
}
/* This routine is provided two arch_infos and works out the i960
machine which would be compatible with both and returns a pointer
to its info structure */
static const bfd_arch_info_type *
compatible (a,b)
const bfd_arch_info_type *a;
const bfd_arch_info_type *b;
{
/* The i960 has distinct subspecies which may not interbreed:
CORE CA
CORE KA KB MC XA
CORE HX JX
Any architecture on the same line is compatible, the one on
the right is the least restrictive.
We represent this information in an array, each machine to a side */
#define ERROR 0
#define CORE bfd_mach_i960_core /*1*/
#define KA bfd_mach_i960_ka_sa /*2*/
#define KB bfd_mach_i960_kb_sb /*3*/
#define MC bfd_mach_i960_mc /*4*/
#define XA bfd_mach_i960_xa /*5*/
#define CA bfd_mach_i960_ca /*6*/
#define JX bfd_mach_i960_jx /*7*/
#define HX bfd_mach_i960_hx /*8*/
#define MAX_ARCH ((int)HX)
static const unsigned long matrix[MAX_ARCH+1][MAX_ARCH+1] =
{
{ ERROR, CORE, KA, KB, MC, XA, CA, JX, HX },
{ CORE, CORE, KA, KB, MC, XA, CA, JX, HX },
{ KA, KA, KA, KB, MC, XA, ERROR, ERROR, ERROR},
{ KB, KB, KB, KB, MC, XA, ERROR, ERROR, ERROR},
{ MC, MC, MC, MC, MC, XA, ERROR, ERROR, ERROR},
{ XA, XA, XA, XA, XA, XA, ERROR, ERROR, ERROR},
{ CA, CA, ERROR, ERROR, ERROR, ERROR, CA, ERROR, ERROR},
{ JX, JX, ERROR, ERROR, ERROR, ERROR, ERROR, JX, HX },
{ HX, HX, ERROR, ERROR, ERROR, ERROR, ERROR, HX, HX },
};
if (a->arch != b->arch || matrix[a->mach][b->mach] == ERROR)
{
return NULL;
}
else
{
return (a->mach == matrix[a->mach][b->mach]) ? a : b;
}
}
#define N(a,b,d,n) \
{ 32, 32, 8,bfd_arch_i960,a,"i960",b,3,d,compatible,scan_960_mach,n,}
static const bfd_arch_info_type arch_info_struct[] =
{
N(bfd_mach_i960_ka_sa,"i960:ka_sa",FALSE, &arch_info_struct[1]),
N(bfd_mach_i960_kb_sb,"i960:kb_sb",FALSE, &arch_info_struct[2]),
N(bfd_mach_i960_mc, "i960:mc", FALSE, &arch_info_struct[3]),
N(bfd_mach_i960_xa, "i960:xa", FALSE, &arch_info_struct[4]),
N(bfd_mach_i960_ca, "i960:ca", FALSE, &arch_info_struct[5]),
N(bfd_mach_i960_jx, "i960:jx", FALSE, &arch_info_struct[6]),
N(bfd_mach_i960_hx, "i960:hx", FALSE, 0),
};
const bfd_arch_info_type bfd_i960_arch =
N(bfd_mach_i960_core, "i960:core", TRUE, &arch_info_struct[0]);
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