[deliverable/binutils-gdb.git] / bfd / archures.c

/* BFD library support routines for architectures. */

/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.

This file is part of BFD, the Binary File Diddler.

BFD 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 1, or (at your option)
any later version.

BFD 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 BFD; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* $Id$ */

#include "sysdep.h"
#include "bfd.h"
#include "archures.h"

static char *prt_num_mach ();
static boolean scan_num_mach ();
static char *prt_960_mach ();
static boolean scan_960_mach ();

struct arch_print {
	enum bfd_architecture arch;
	char *astr;
	char *(*mach_print)();
	boolean (*mach_scan)();
} arch_print[] = {

	{bfd_arch_unknown,	"unknown",	prt_num_mach,	scan_num_mach},
	{bfd_arch_obscure,	"obscure",	prt_num_mach,	scan_num_mach},
	{bfd_arch_m68k,		"m68k",		prt_num_mach,	scan_num_mach},
	{bfd_arch_vax,		"vax",		prt_num_mach,	scan_num_mach},
	{bfd_arch_i960,		"i960",		prt_960_mach,	scan_960_mach},
	{bfd_arch_a29k,		"a29k",		prt_num_mach,	scan_num_mach},
	{bfd_arch_sparc,	"sparc",	prt_num_mach,	scan_num_mach},
	{bfd_arch_mips,		"mips",		prt_num_mach,	scan_num_mach},
	{bfd_arch_i386,		"i386",		prt_num_mach,	scan_num_mach},
	{bfd_arch_ns32k,	"ns32k",	prt_num_mach,	scan_num_mach},
	{bfd_arch_tahoe,	"tahoe",	prt_num_mach,	scan_num_mach},
	{bfd_arch_i860,		"i860",		prt_num_mach,	scan_num_mach},
	{bfd_arch_romp,		"romp",		prt_num_mach,	scan_num_mach},
	{bfd_arch_alliant,	"alliant",	prt_num_mach,	scan_num_mach},
	{bfd_arch_convex,	"convex",	prt_num_mach,	scan_num_mach},
	{bfd_arch_m88k,		"m88k",		prt_num_mach,	scan_num_mach},
	{bfd_arch_pyramid,	"pyramid",	prt_num_mach,	scan_num_mach},
	{bfd_arch_h8_300,       "H8/300",       prt_num_mach,   scan_num_mach},
	{bfd_arch_unknown,	(char *)0,	prt_num_mach,   scan_num_mach},
};

/* Return a printable string representing the architecture and machine
   type.  The result is only good until the next call to
   bfd_printable_arch_mach.  */

char *
bfd_printable_arch_mach (arch, machine)
     enum bfd_architecture arch;
     unsigned long machine;
{
  struct arch_print *ap;

  for (ap = arch_print; ap->astr; ap++) {
    if (ap->arch == arch) {
      if (machine == 0)
	return ap->astr;
      return (*ap->mach_print)(ap, machine);
    }
  }
  return "UNKNOWN!";
}

static char *
prt_num_mach (ap, machine)
     struct arch_print *ap;
     unsigned long machine;
{
  static char result[20];

  sprintf(result, "%s:%ld", ap->astr, (long) machine);
  return result;
}

/* Scan a string and attempt to turn it into an archive and machine type
   combination.  */

boolean
DEFUN(bfd_scan_arch_mach,(string, archp, machinep),
      CONST char *string AND
      enum bfd_architecture *archp AND
      unsigned long *machinep)
{
  struct arch_print *ap;
  int len;

  /* First look for an architecture, possibly followed by machtype. */
  for (ap = arch_print; ap->astr; ap++) {
    if (ap->astr[0] != string[0])
      continue;
    len = strlen (ap->astr);
    if (!strncmp (ap->astr, string, len)) {
      /* We found the architecture, now see about the machine type */
      if (archp)
	*archp = ap->arch;
      if (string[len] != '\0') {
	if (ap->mach_scan (string+len, ap, archp, machinep, 1))
	  return true;
      }
      if (machinep)
	*machinep = 0;
      return true;
    }
  }

  /* Couldn't find an architecture -- try for just a machine type */
  for (ap = arch_print; ap->astr; ap++) {
    if (ap->mach_scan (string, ap, archp, machinep, 0))
      return true;
  }

  return false;
}

static boolean
scan_num_mach (string, ap, archp, machinep, archspec)
     char *string;
     struct arch_print *ap;
     enum bfd_architecture *archp;
     unsigned long *machinep;
     int archspec;
{
  enum bfd_architecture arch;
  unsigned long machine;
  char achar;

  if (archspec) {

    /* Architecture already specified, now go for machine type.  */
    if (string[0] != ':')
      return false;
    /* We'll take any valid number that occupies the entire string */
    if (1 != sscanf (string+1, "%lu%c", &machine, &achar))
      return false;
    arch = ap->arch;

  } else {

    /* We couldn't identify an architecture prefix.  Perhaps the entire
       thing is a machine type.  Be a lot picker.  */
    if (1 != sscanf (string, "%lu%c", &machine, &achar))
      return false;
    switch (machine) {
    case 68010:
    case 68020:
    case 68030:
    case 68040:
    case 68332:
    case 68050:		arch = bfd_arch_m68k; break;
    case 68000:		arch = bfd_arch_m68k; machine = 0; break;

    case 80960:
    case 960:		arch = bfd_arch_i960; machine = 0; break;

    case 386:
    case 80386:		arch = bfd_arch_i386; machine = 0; break;
    case 486:		arch = bfd_arch_i386; break;

    case 29000:		arch = bfd_arch_a29k; machine = 0; break;

    case 32016:
    case 32032:
    case 32132:
    case 32232:
    case 32332:
    case 32432:
    case 32532:		arch = bfd_arch_ns32k; break;
    case 32000:		arch = bfd_arch_ns32k; machine = 0; break;

    case 860:
    case 80860:		arch = bfd_arch_i860; machine = 0; break;

    default:		return false;
    }
  }

  if (archp)
    *archp = arch;
  if (machinep)
    *machinep = machine;
  return true;
}
\f
/* Intel 960 machine variants.  */

static char *
prt_960_mach (ap, machine)
     struct arch_print *ap;
     unsigned long machine;
{
  static char result[20];
  char *str;

  switch (machine) {
  case bfd_mach_i960_core:	str = "core"; break;
  case bfd_mach_i960_kb_sb:	str = "kb"; break;
  case bfd_mach_i960_mc:	str = "mc"; break;
  case bfd_mach_i960_xa:	str = "xa"; break;
  case bfd_mach_i960_ca:	str = "ca"; break;
  case bfd_mach_i960_ka_sa:	str = "ka"; break;
  default:
	return prt_num_mach (ap, machine);
  }
  sprintf (result, "%s:%s", ap->astr, str);
  return result;
}

static boolean
scan_960_mach (string, ap, archp, machinep, archspec)
     char *string;
     struct arch_print *ap;
     enum bfd_architecture *archp;
     unsigned long *machinep;
     int archspec;
{
  unsigned long machine;

  if (!archspec)
    return false;
  if (string[0] != ':')
    return false;
  string++;
  if (string[0] == '\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 (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;
  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;
  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;
  else if (string[0] == 'k' && string[1] == 'a')
    machine = bfd_mach_i960_ka_sa;
  else if (string[0] == 's' && string[1] == 'a')
    machine = bfd_mach_i960_ka_sa;
  else
    return false;

  if (archp)
    *archp = ap->arch;
  if (machinep)
    *machinep = machine;
  return true;
}


\f
/* Determine whether two BFDs' architectures and machine types are
   compatible.  Return merged architecture and machine type if nonnull
   pointers.  */

boolean
bfd_arch_compatible (abfd, bbfd, archp, machinep)
    bfd *abfd;
    bfd *bbfd;
    enum bfd_architecture *archp;
    unsigned long *machinep;
{
  enum bfd_architecture archa, archb;
  unsigned long macha, machb;
  int pick_a;

  archa = bfd_get_architecture (abfd);
  archb = bfd_get_architecture (bbfd);
  macha = bfd_get_machine (abfd);
  machb = bfd_get_machine (bbfd);

  if (archb == bfd_arch_unknown)
	pick_a = 1;
  else if (archa == bfd_arch_unknown)
	pick_a = 0;
  else if (archa != archb)
	return false;			/* Not compatible */
  else {
    /* Architectures are the same.  Check machine types.  */
    if (macha == machb)		/* Same machine type */
      pick_a = 1;
    else if (machb == 0)	/* B is default */
      pick_a = 1;
    else if (macha == 0)	/* A is default */
      pick_a = 0;
    else switch (archa) {
      /* If particular machine types of one architecture are not
	 compatible with each other, this is the place to put those tests
	 (returning false if incompatible).  */

      case bfd_arch_i960:
	/* The i960 has two distinct subspecies which may not interbreed:
	   CORE CA          
	   CORE KA KB MC
	   Any architecture on the same line is compatible, the one on
	   the right is the least restrictive.  */
	/* So, if either is a ca then the other must be a be core or ca */
	if (macha == bfd_mach_i960_ca) {
	  if (machb != bfd_mach_i960_ca &&
	      machb != bfd_mach_i960_core) {
	    return false;
	  }
	  pick_a = 1;
	}
	else      if (machb == bfd_mach_i960_ca) {
	  if (macha != bfd_mach_i960_ca &&
	      macha != bfd_mach_i960_core) {
	    return false;
	  }
	  pick_a = 0;
	}
	else {
	  /* This must be from the bottom row, so take the higest */
	  pick_a = (macha > machb);
	}
	break;

      /* For these chips, as far as we care, "lower" numbers are included
	 by "higher" numbers, e.g. merge 68010 and 68020 into 68020,
	 386 and 486 into 486, etc.  This will need to change
	 if&when we care about things like 68332.  */
    case bfd_arch_m68k:
    case bfd_arch_ns32k:
    case bfd_arch_i386:
      pick_a = (macha > machb);
      break;
    
      /* By default, pick first file's type, for lack of something better.  */
    default:
      pick_a = 1;
    }
  }

  /* Set result based on our pick */
  if (!pick_a) {
    archa = archb;
    macha = machb;
  }
  if (archp)
    *archp = archa;
  if (machinep)
    *machinep = macha;

  return true;
}
Commit	Line	Data
4a81b561 DHW	1	/* BFD library support routines for architectures. */
	2
	3	/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
	4
	5	This file is part of BFD, the Binary File Diddler.
	6
	7	BFD is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 1, or (at your option)
	10	any later version.
	11
	12	BFD is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with BFD; see the file COPYING. If not, write to
	19	the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
	20
	21	/* $Id$ */
	22
	23	#include "sysdep.h"
	24	#include "bfd.h"
	25	#include "archures.h"
	26
	27	static char *prt_num_mach ();
	28	static boolean scan_num_mach ();
	29	static char *prt_960_mach ();
	30	static boolean scan_960_mach ();
	31
	32	struct arch_print {
	33	enum bfd_architecture arch;
	34	char *astr;
	35	char (mach_print)();
	36	boolean (*mach_scan)();
	37	} arch_print[] = {
	38
	39	{bfd_arch_unknown, "unknown", prt_num_mach, scan_num_mach},
	40	{bfd_arch_obscure, "obscure", prt_num_mach, scan_num_mach},
	41	{bfd_arch_m68k, "m68k", prt_num_mach, scan_num_mach},
	42	{bfd_arch_vax, "vax", prt_num_mach, scan_num_mach},
	43	{bfd_arch_i960, "i960", prt_960_mach, scan_960_mach},
	44	{bfd_arch_a29k, "a29k", prt_num_mach, scan_num_mach},
	45	{bfd_arch_sparc, "sparc", prt_num_mach, scan_num_mach},
	46	{bfd_arch_mips, "mips", prt_num_mach, scan_num_mach},
	47	{bfd_arch_i386, "i386", prt_num_mach, scan_num_mach},
	48	{bfd_arch_ns32k, "ns32k", prt_num_mach, scan_num_mach},
	49	{bfd_arch_tahoe, "tahoe", prt_num_mach, scan_num_mach},
	50	{bfd_arch_i860, "i860", prt_num_mach, scan_num_mach},
	51	{bfd_arch_romp, "romp", prt_num_mach, scan_num_mach},
	52	{bfd_arch_alliant, "alliant", prt_num_mach, scan_num_mach},
	53	{bfd_arch_convex, "convex", prt_num_mach, scan_num_mach},
	54	{bfd_arch_m88k, "m88k", prt_num_mach, scan_num_mach},
	55	{bfd_arch_pyramid, "pyramid", prt_num_mach, scan_num_mach},
4cddd1c9 SC	56	{bfd_arch_h8_300, "H8/300", prt_num_mach, scan_num_mach},
4cddd1c9 SC	57	{bfd_arch_unknown, (char *)0, prt_num_mach, scan_num_mach},
4a81b561 DHW	58	};
	59
	60	/* Return a printable string representing the architecture and machine
	61	type. The result is only good until the next call to
	62	bfd_printable_arch_mach. */
	63
	64	char *
	65	bfd_printable_arch_mach (arch, machine)
	66	enum bfd_architecture arch;
	67	unsigned long machine;
	68	{
	69	struct arch_print *ap;
	70
	71	for (ap = arch_print; ap->astr; ap++) {
	72	if (ap->arch == arch) {
	73	if (machine == 0)
	74	return ap->astr;
	75	return (*ap->mach_print)(ap, machine);
	76	}
	77	}
	78	return "UNKNOWN!";
	79	}
	80
	81	static char *
	82	prt_num_mach (ap, machine)
	83	struct arch_print *ap;
	84	unsigned long machine;
	85	{
	86	static char result[20];
	87
	88	sprintf(result, "%s:%ld", ap->astr, (long) machine);
	89	return result;
	90	}
	91
	92	/* Scan a string and attempt to turn it into an archive and machine type
	93	combination. */
	94
	95	boolean
4cddd1c9 SC	96	DEFUN(bfd_scan_arch_mach,(string, archp, machinep),
	97	CONST char *string AND
	98	enum bfd_architecture *archp AND
	99	unsigned long *machinep)
4a81b561 DHW	100	{
	101	struct arch_print *ap;
	102	int len;
	103
	104	/* First look for an architecture, possibly followed by machtype. */
	105	for (ap = arch_print; ap->astr; ap++) {
	106	if (ap->astr[0] != string[0])
	107	continue;
	108	len = strlen (ap->astr);
	109	if (!strncmp (ap->astr, string, len)) {
	110	/* We found the architecture, now see about the machine type */
	111	if (archp)
	112	*archp = ap->arch;
	113	if (string[len] != '\0') {
	114	if (ap->mach_scan (string+len, ap, archp, machinep, 1))
	115	return true;
	116	}
	117	if (machinep)
	118	*machinep = 0;
	119	return true;
	120	}
	121	}
	122
	123	/* Couldn't find an architecture -- try for just a machine type */
	124	for (ap = arch_print; ap->astr; ap++) {
	125	if (ap->mach_scan (string, ap, archp, machinep, 0))
	126	return true;
	127	}
	128
	129	return false;
	130	}
	131
	132	static boolean
	133	scan_num_mach (string, ap, archp, machinep, archspec)
	134	char *string;
	135	struct arch_print *ap;
	136	enum bfd_architecture *archp;
	137	unsigned long *machinep;
	138	int archspec;
	139	{
	140	enum bfd_architecture arch;
	141	unsigned long machine;
	142	char achar;
	143
	144	if (archspec) {
	145
	146	/* Architecture already specified, now go for machine type. */
	147	if (string[0] != ':')
	148	return false;
	149	/* We'll take any valid number that occupies the entire string */
	150	if (1 != sscanf (string+1, "%lu%c", &machine, &achar))
	151	return false;
	152	arch = ap->arch;
	153
	154	} else {
	155
	156	/* We couldn't identify an architecture prefix. Perhaps the entire
	157	thing is a machine type. Be a lot picker. */
	158	if (1 != sscanf (string, "%lu%c", &machine, &achar))
	159	return false;
	160	switch (machine) {
	161	case 68010:
	162	case 68020:
	163	case 68030:
164	case 68040:
165	case 68332:
166	case 68050: arch = bfd_arch_m68k; break;
167	case 68000: arch = bfd_arch_m68k; machine = 0; break;
168
169	case 80960:
170	case 960: arch = bfd_arch_i960; machine = 0; break;
171
172	case 386:
173	case 80386: arch = bfd_arch_i386; machine = 0; break;
174	case 486: arch = bfd_arch_i386; break;
175
176	case 29000: arch = bfd_arch_a29k; machine = 0; break;
177
178	case 32016:
179	case 32032:
180	case 32132:
181	case 32232:
182	case 32332:
183	case 32432:
184	case 32532: arch = bfd_arch_ns32k; break;
185	case 32000: arch = bfd_arch_ns32k; machine = 0; break;
186
187	case 860:
188	case 80860: arch = bfd_arch_i860; machine = 0; break;
189
190	default: return false;
191	}
192	}
193
194	if (archp)
195	*archp = arch;
196	if (machinep)
197	*machinep = machine;
198	return true;
199	}
200	\f
201	/* Intel 960 machine variants. */
202
203	static char *
204	prt_960_mach (ap, machine)
205	struct arch_print *ap;
206	unsigned long machine;
207	{
208	static char result[20];
209	char *str;
210
211	switch (machine) {
212	case bfd_mach_i960_core: str = "core"; break;
213	case bfd_mach_i960_kb_sb: str = "kb"; break;
214	case bfd_mach_i960_mc: str = "mc"; break;
215	case bfd_mach_i960_xa: str = "xa"; break;
216	case bfd_mach_i960_ca: str = "ca"; break;
217	case bfd_mach_i960_ka_sa: str = "ka"; break;
218	default:
219	return prt_num_mach (ap, machine);
220	}
221	sprintf (result, "%s:%s", ap->astr, str);
222	return result;
223	}
224
225	static boolean
226	scan_960_mach (string, ap, archp, machinep, archspec)
227	char *string;
228	struct arch_print *ap;
229	enum bfd_architecture *archp;
230	unsigned long *machinep;
231	int archspec;
232	{
233	unsigned long machine;
234
235	if (!archspec)
236	return false;
237	if (string[0] != ':')
238	return false;
239	string++;
240	if (string[0] == '\0')
241	return false;
242	if (string[0] == 'c' && string[1] == 'o' && string[2] == 'r' &&
243	string[3] == 'e' && string[4] == '\0')
244	machine = bfd_mach_i960_core;
245	else if (string[1] == '\0' \|\| string[2] != '\0') /* rest are 2-char */
246	return false;
247	else if (string[0] == 'k' && string[1] == 'b')
248	machine = bfd_mach_i960_kb_sb;
249	else if (string[0] == 's' && string[1] == 'b')
250	machine = bfd_mach_i960_kb_sb;
251	else if (string[0] == 'm' && string[1] == 'c')
252	machine = bfd_mach_i960_mc;
253	else if (string[0] == 'x' && string[1] == 'a')
254	machine = bfd_mach_i960_xa;
255	else if (string[0] == 'c' && string[1] == 'a')
256	machine = bfd_mach_i960_ca;
257	else if (string[0] == 'k' && string[1] == 'a')
258	machine = bfd_mach_i960_ka_sa;
259	else if (string[0] == 's' && string[1] == 'a')
260	machine = bfd_mach_i960_ka_sa;
261	else
262	return false;
263
264	if (archp)
265	*archp = ap->arch;
266	if (machinep)
267	*machinep = machine;
268	return true;
269	}
270
271
272	\f
273	/* Determine whether two BFDs' architectures and machine types are
274	compatible. Return merged architecture and machine type if nonnull
275	pointers. */
276
277	boolean
278	bfd_arch_compatible (abfd, bbfd, archp, machinep)
279	bfd *abfd;
280	bfd *bbfd;
281	enum bfd_architecture *archp;
282	unsigned long *machinep;
283	{
284	enum bfd_architecture archa, archb;
285	unsigned long macha, machb;
286	int pick_a;
287
288	archa = bfd_get_architecture (abfd);
289	archb = bfd_get_architecture (bbfd);
290	macha = bfd_get_machine (abfd);
291	machb = bfd_get_machine (bbfd);
292
293	if (archb == bfd_arch_unknown)
294	pick_a = 1;
295	else if (archa == bfd_arch_unknown)
296	pick_a = 0;
297	else if (archa != archb)
298	return false; /* Not compatible */
299	else {
300	/* Architectures are the same. Check machine types. */
301	if (macha == machb) /* Same machine type */
302	pick_a = 1;
303	else if (machb == 0) /* B is default */
304	pick_a = 1;
305	else if (macha == 0) /* A is default */
306	pick_a = 0;
307	else switch (archa) {
308	/* If particular machine types of one architecture are not
309	compatible with each other, this is the place to put those tests
310	(returning false if incompatible). */
fc723380 JG	311
	312	case bfd_arch_i960:
	313	/* The i960 has two distinct subspecies which may not interbreed:
	314	CORE CA
	315	CORE KA KB MC
	316	Any architecture on the same line is compatible, the one on
	317	the right is the least restrictive. */
	318	/* So, if either is a ca then the other must be a be core or ca */
	319	if (macha == bfd_mach_i960_ca) {
	320	if (machb != bfd_mach_i960_ca &&
	321	machb != bfd_mach_i960_core) {
	322	return false;
	323	}
	324	pick_a = 1;
4a81b561	325	}
fc723380 JG	326	else if (machb == bfd_mach_i960_ca) {
	327	if (macha != bfd_mach_i960_ca &&
	328	macha != bfd_mach_i960_core) {
	329	return false;
	330	}
	331	pick_a = 0;
4a81b561	332	}
fc723380 JG	333	else {
	334	/* This must be from the bottom row, so take the higest */
	335	pick_a = (macha > machb);
	336	}
	337	break;
4a81b561 DHW	338
	339	/* For these chips, as far as we care, "lower" numbers are included
	340	by "higher" numbers, e.g. merge 68010 and 68020 into 68020,
	341	386 and 486 into 486, etc. This will need to change
	342	if&when we care about things like 68332. */
	343	case bfd_arch_m68k:
	344	case bfd_arch_ns32k:
	345	case bfd_arch_i386:
	346	pick_a = (macha > machb);
	347	break;
	348
	349	/* By default, pick first file's type, for lack of something better. */
	350	default:
	351	pick_a = 1;
	352	}
	353	}
	354
	355	/* Set result based on our pick */
	356	if (!pick_a) {
	357	archa = archb;
	358	macha = machb;
	359	}
	360	if (archp)
	361	*archp = archa;
	362	if (machinep)
	363	*machinep = macha;
	364
	365	return true;
	366	}