Initial GNU binutils 2.6 import

1 files changed, 712 insertions, 0 deletions

diff --git a/gnu/usr.bin/binutils/bfd/archures.c b/gnu/usr.bin/binutils/bfd/archures.c
new file mode 100644
index 00000000000..f82007fd840
--- /dev/null
+++ b/gnu/usr.bin/binutils/bfd/archures.c
@@ -0,0 +1,712 @@
+/* BFD library support routines for architectures.
+   Copyright (C) 1990, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
+   Hacked by John Gilmore and 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include <ctype.h>
+
+/*
+
+SECTION
+	Architectures
+
+	BFD keeps one atom in a BFD describing the
+	architecture of the data attached to the BFD: a pointer to a
+	<<bfd_arch_info_type>>.  
+
+	Pointers to structures can be requested independently of a BFD
+	so that an architecture's information can be interrogated
+	without access to an open BFD.
+
+	The architecture information is provided by each architecture package.
+	The set of default architectures is selected by the macro
+	<<SELECT_ARCHITECTURES>>.  This is normally set up in the
+	@file{config/@var{target}.mt} file of your choice.  If the name is not
+	defined, then all the architectures supported are included. 
+
+	When BFD starts up, all the architectures are called with an
+	initialize method.  It is up to the architecture back end to
+	insert as many items into the list of architectures as it wants to;
+	generally this would be one for each machine and one for the
+	default case (an item with a machine field of 0). 
+
+	BFD's idea of an architecture is implemented in	@file{archures.c}.
+*/
+
+/*
+
+SUBSECTION
+	bfd_architecture
+
+DESCRIPTION
+	This enum gives the object file's CPU architecture, in a
+	global sense---i.e., what processor family does it belong to?
+	Another field indicates which processor within
+	the family is in use.  The machine gives a number which
+	distinguishes different versions of the architecture,
+	containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
+	and 68020 and 68030 for Motorola 68020 and 68030. 
+
+.enum bfd_architecture 
+.{
+.  bfd_arch_unknown,   {* File arch not known *}
+.  bfd_arch_obscure,   {* Arch known, not one of these *}
+.  bfd_arch_m68k,      {* Motorola 68xxx *}
+.  bfd_arch_vax,       {* DEC Vax *}   
+.  bfd_arch_i960,      {* Intel 960 *}
+.    {* The order of the following is important.
+.       lower number indicates a machine type that 
+.       only accepts a subset of the instructions
+.       available to machines with higher numbers.
+.       The exception is the "ca", which is
+.       incompatible with all other machines except 
+.       "core". *}
+.
+.#define bfd_mach_i960_core      1
+.#define bfd_mach_i960_ka_sa     2
+.#define bfd_mach_i960_kb_sb     3
+.#define bfd_mach_i960_mc        4
+.#define bfd_mach_i960_xa        5
+.#define bfd_mach_i960_ca        6
+.
+.  bfd_arch_a29k,      {* AMD 29000 *}
+.  bfd_arch_sparc,     {* SPARC *}
+.#define bfd_mach_sparc		1
+.#define bfd_mach_sparc64	2
+.  bfd_arch_mips,      {* MIPS Rxxxx *}
+.  bfd_arch_i386,      {* Intel 386 *}
+.  bfd_arch_we32k,     {* AT&T WE32xxx *}
+.  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
+.  bfd_arch_i860,      {* Intel 860 *}
+.  bfd_arch_romp,      {* IBM ROMP PC/RT *}
+.  bfd_arch_alliant,   {* Alliant *}
+.  bfd_arch_convex,    {* Convex *}
+.  bfd_arch_m88k,      {* Motorola 88xxx *}
+.  bfd_arch_pyramid,   {* Pyramid Technology *}
+.  bfd_arch_h8300,     {* Hitachi H8/300 *}
+.#define bfd_mach_h8300   1
+.#define bfd_mach_h8300h  2
+.  bfd_arch_powerpc,   {* PowerPC *}
+.  bfd_arch_rs6000,    {* IBM RS/6000 *}
+.  bfd_arch_hppa,      {* HP PA RISC *}
+.  bfd_arch_z8k,       {* Zilog Z8000 *}
+.#define bfd_mach_z8001		1
+.#define bfd_mach_z8002		2
+.  bfd_arch_h8500,     {* Hitachi H8/500 *}
+.  bfd_arch_sh,        {* Hitachi SH *}
+.  bfd_arch_alpha,     {* Dec Alpha *}
+.  bfd_arch_arm,       {* Advanced Risc Machines ARM *}
+.  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
+.  bfd_arch_w65,       {* WDC 65816 *}
+.  bfd_arch_last
+.  };
+
+
+*/
+
+/*
+
+SUBSECTION
+	bfd_arch_info
+
+DESCRIPTION
+	This structure contains information on architectures for use
+	within BFD.
+
+.
+.typedef struct bfd_arch_info 
+.{
+.  int bits_per_word;
+.  int bits_per_address;
+.  int bits_per_byte;
+.  enum bfd_architecture arch;
+.  unsigned long mach;
+.  const char *arch_name;
+.  const char *printable_name;
+.  unsigned int section_align_power;
+. {* true if this is the default machine for the architecture *}
+.  boolean the_default;	
+.  const struct bfd_arch_info * (*compatible)
+.	PARAMS ((const struct bfd_arch_info *a,
+.	         const struct bfd_arch_info *b));
+.
+.  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
+.
+.  const struct bfd_arch_info *next;
+.} bfd_arch_info_type;
+*/
+
+extern const bfd_arch_info_type bfd_a29k_arch;
+extern const bfd_arch_info_type bfd_alpha_arch;
+extern const bfd_arch_info_type bfd_arm_arch;
+extern const bfd_arch_info_type bfd_h8300_arch;
+extern const bfd_arch_info_type bfd_h8500_arch;
+extern const bfd_arch_info_type bfd_hppa_arch;
+extern const bfd_arch_info_type bfd_i386_arch;
+extern const bfd_arch_info_type bfd_i860_arch;
+extern const bfd_arch_info_type bfd_i960_arch;
+extern const bfd_arch_info_type bfd_m68k_arch;
+extern const bfd_arch_info_type bfd_m88k_arch;
+extern const bfd_arch_info_type bfd_mips_arch;
+extern const bfd_arch_info_type bfd_powerpc_arch;
+extern const bfd_arch_info_type bfd_rs6000_arch;
+extern const bfd_arch_info_type bfd_sh_arch;
+extern const bfd_arch_info_type bfd_sparc_arch;
+extern const bfd_arch_info_type bfd_vax_arch;
+extern const bfd_arch_info_type bfd_we32k_arch;
+extern const bfd_arch_info_type bfd_z8k_arch;
+extern const bfd_arch_info_type bfd_ns32k_arch;
+extern const bfd_arch_info_type bfd_w65_arch;
+
+static const bfd_arch_info_type * const bfd_archures_list[] =
+{
+#ifdef SELECT_ARCHITECTURES
+  SELECT_ARCHITECTURES,
+#else
+  &bfd_a29k_arch,
+  &bfd_alpha_arch,
+  &bfd_arm_arch,
+  &bfd_h8300_arch,
+  &bfd_h8500_arch,
+  &bfd_hppa_arch,
+  &bfd_i386_arch,
+  &bfd_i860_arch,
+  &bfd_i960_arch,
+  &bfd_m68k_arch,
+  &bfd_m88k_arch,
+  &bfd_mips_arch,
+  &bfd_powerpc_arch,
+  &bfd_rs6000_arch,
+  &bfd_sh_arch,
+  &bfd_sparc_arch,
+  &bfd_vax_arch,
+  &bfd_we32k_arch,
+  &bfd_z8k_arch,
+  &bfd_ns32k_arch,
+  &bfd_w65_arch,
+#endif
+  0
+};
+
+/*
+FUNCTION
+	bfd_printable_name
+
+SYNOPSIS
+	const char *bfd_printable_name(bfd *abfd);
+
+DESCRIPTION
+	Return a printable string representing the architecture and machine
+	from the pointer to the architecture info structure.
+
+*/
+
+const char *
+bfd_printable_name (abfd)
+     bfd *abfd;
+{
+  return abfd->arch_info->printable_name;
+}
+
+
+
+/*
+FUNCTION
+	bfd_scan_arch
+
+SYNOPSIS
+	const bfd_arch_info_type *bfd_scan_arch(const char *string);
+
+DESCRIPTION
+	Figure out if BFD supports any cpu which could be described with
+	the name @var{string}.  Return a pointer to an <<arch_info>>
+	structure if a machine is found, otherwise NULL.
+
+*/
+
+const bfd_arch_info_type *
+bfd_scan_arch (string)
+     const char *string;
+{
+  const bfd_arch_info_type * const *app, *ap;
+
+  /* Look through all the installed architectures */
+  for (app = bfd_archures_list; *app != NULL; app++)
+    {
+      for (ap = *app; ap != NULL; ap = ap->next)
+	{
+	  if (ap->scan (ap, string))
+	    return ap;
+	}
+    }
+
+  return NULL;
+}
+
+
+
+/*
+FUNCTION
+	bfd_arch_get_compatible
+
+SYNOPSIS
+	const bfd_arch_info_type *bfd_arch_get_compatible(
+		const bfd *abfd,
+	        const bfd *bbfd);
+
+DESCRIPTION
+	Determine whether two BFDs'
+	architectures and machine types are compatible.  Calculates
+	the lowest common denominator between the two architectures
+	and machine types implied by the BFDs and returns a pointer to
+	an <<arch_info>> structure describing the compatible machine.
+*/
+
+const bfd_arch_info_type *
+bfd_arch_get_compatible (abfd, bbfd)
+     const bfd *abfd;
+     const bfd *bbfd;
+{
+  /* If either architecture is unknown, then all we can do is assume
+     the user knows what he's doing.  */
+  if (abfd->arch_info->arch == bfd_arch_unknown)
+  	return bbfd->arch_info;
+  if (bbfd->arch_info->arch == bfd_arch_unknown)
+  	return abfd->arch_info;
+
+  /* Otherwise architecture-specific code has to decide.  */
+  return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
+}
+
+
+/*
+INTERNAL_DEFINITION
+	bfd_default_arch_struct
+
+DESCRIPTION
+	The <<bfd_default_arch_struct>> is an item of
+	<<bfd_arch_info_type>> which has been initialized to a fairly
+	generic state.  A BFD starts life by pointing to this
+	structure, until the correct back end has determined the real
+	architecture of the file.
+
+.extern const bfd_arch_info_type bfd_default_arch_struct;
+
+*/
+
+const bfd_arch_info_type bfd_default_arch_struct =
+{
+    32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
+    bfd_default_compatible,
+    bfd_default_scan, 
+    0,
+};
+
+/*
+FUNCTION
+	bfd_set_arch_info
+
+SYNOPSIS
+	void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
+
+DESCRIPTION
+	Set the architecture info of @var{abfd} to @var{arg}.
+*/
+
+void
+bfd_set_arch_info (abfd, arg)
+     bfd *abfd;
+     const bfd_arch_info_type *arg;
+{
+  abfd->arch_info = arg;
+}
+
+/*
+INTERNAL_FUNCTION
+	bfd_default_set_arch_mach
+
+SYNOPSIS
+	boolean bfd_default_set_arch_mach(bfd *abfd,
+		enum bfd_architecture arch,
+		unsigned long mach);
+
+DESCRIPTION
+	Set the architecture and machine type in BFD @var{abfd}
+	to @var{arch} and @var{mach}.  Find the correct
+	pointer to a structure and insert it into the <<arch_info>>
+	pointer. 
+*/
+
+boolean
+bfd_default_set_arch_mach (abfd, arch, mach)
+     bfd *abfd;
+     enum bfd_architecture arch;
+     unsigned long mach;
+{
+  const bfd_arch_info_type * const *app, *ap;
+
+  for (app = bfd_archures_list; *app != NULL; app++)
+    {
+      for (ap = *app; ap != NULL; ap = ap->next)
+	{
+	  if (ap->arch == arch
+	      && (ap->mach == mach
+		  || (mach == 0 && ap->the_default)))
+	    {
+	      abfd->arch_info = ap;
+	      return true;
+	    }
+	}
+    }
+
+  abfd->arch_info = &bfd_default_arch_struct;
+  bfd_set_error (bfd_error_bad_value);
+  return false;
+}
+
+
+/*
+FUNCTION
+	bfd_get_arch
+
+SYNOPSIS
+	enum bfd_architecture bfd_get_arch(bfd *abfd);
+
+DESCRIPTION
+	Return the enumerated type which describes the BFD @var{abfd}'s
+	architecture.
+
+*/
+
+enum bfd_architecture
+bfd_get_arch (abfd)
+     bfd *abfd;
+{
+    return abfd->arch_info->arch;
+}
+
+/*
+FUNCTION
+	bfd_get_mach
+
+SYNOPSIS
+	unsigned long bfd_get_mach(bfd *abfd);
+
+DESCRIPTION
+	Return the long type which describes the BFD @var{abfd}'s
+	machine.
+*/
+
+unsigned long  
+bfd_get_mach (abfd)
+     bfd *abfd;
+{
+    return abfd->arch_info->mach;
+}
+
+/*
+FUNCTION
+	bfd_arch_bits_per_byte
+
+SYNOPSIS
+	unsigned int bfd_arch_bits_per_byte(bfd *abfd);
+
+DESCRIPTION
+	Return the number of bits in one of the BFD @var{abfd}'s
+	architecture's bytes.
+
+*/
+
+unsigned int
+bfd_arch_bits_per_byte (abfd)
+     bfd *abfd;
+{
+  return abfd->arch_info->bits_per_byte;
+}
+
+/*
+FUNCTION
+	bfd_arch_bits_per_address
+
+SYNOPSIS
+	unsigned int bfd_arch_bits_per_address(bfd *abfd);
+
+DESCRIPTION
+	Return the number of bits in one of the BFD @var{abfd}'s
+	architecture's addresses.
+*/
+
+unsigned int
+bfd_arch_bits_per_address (abfd)
+     bfd *abfd;
+{
+  return abfd->arch_info->bits_per_address;
+}
+
+
+/*
+INTERNAL_FUNCTION 
+	bfd_default_compatible
+
+SYNOPSIS
+	const bfd_arch_info_type *bfd_default_compatible
+	(const bfd_arch_info_type *a,
+	const bfd_arch_info_type *b);
+
+DESCRIPTION
+	The default function for testing for compatibility.
+*/
+
+const bfd_arch_info_type *
+bfd_default_compatible (a,b)
+     const bfd_arch_info_type *a;
+     const bfd_arch_info_type *b;
+{
+  if (a->arch != b->arch)
+    return NULL;
+
+  if (a->mach > b->mach)
+    return a;
+
+  if (b->mach > a->mach)
+    return b;
+
+  return a;
+}
+
+
+/*
+INTERNAL_FUNCTION
+	bfd_default_scan
+
+SYNOPSIS
+	boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
+
+DESCRIPTION
+	The default function for working out whether this is an
+	architecture hit and a machine hit.
+*/
+
+boolean 
+bfd_default_scan (info, string)
+     const struct bfd_arch_info *info;
+     const char *string;
+{
+  const char *ptr_src;
+  const char *ptr_tst;
+  unsigned long number;
+  enum bfd_architecture arch;
+
+  /* First test for an exact match */
+  if (strcmp (string, info->printable_name) == 0)
+    return true;
+
+  /* See how much of the supplied string matches with the
+     architecture, eg the string m68k:68020 would match the 68k entry
+     up to the :, then we get left with the machine number */
+
+  for (ptr_src = string, ptr_tst = info->arch_name; 
+       *ptr_src && *ptr_tst;
+       ptr_src++, ptr_tst++) 
+    {
+      if (*ptr_src != *ptr_tst) break;
+    }
+
+  /* Chewed up as much of the architecture as will match, skip any
+     colons */
+  if (*ptr_src == ':')
+    ptr_src++;
+  
+  if (*ptr_src == 0)
+    {
+      /* nothing more, then only keep this one if it is the default
+	 machine for this architecture */
+      return info->the_default;
+    }
+
+  number = 0;
+  while (isdigit(*ptr_src))
+    {
+      number = number * 10 + *ptr_src  - '0';
+      ptr_src++;
+    }
+
+  switch (number) 
+    {
+    case 65:
+      arch = bfd_arch_w65;
+      break;
+
+    case 300:
+      arch = bfd_arch_h8300;
+      break;
+
+    case 500:
+      arch = bfd_arch_h8500;
+      break;
+
+    case 68010:
+    case 68020:
+    case 68030:
+    case 68040:
+    case 68332:
+    case 68050:        
+    case 68000: 
+      arch = bfd_arch_m68k; 
+      break;
+
+    case 386: 
+    case 80386:
+    case 486:
+    case 80486:
+      arch = bfd_arch_i386;
+      break;
+
+    case 29000: 
+      arch = bfd_arch_a29k;
+      break;
+
+    case 8000:
+      arch = bfd_arch_z8k;
+      break;
+
+    case 32000:
+      arch = bfd_arch_we32k;
+      break;
+
+    case 860:
+    case 80860: 
+      arch = bfd_arch_i860; 
+      break;
+    case 960:
+    case 80960:
+      arch = bfd_arch_i960;
+      break;
+
+    case 2000:
+    case 3000:
+    case 4000:
+    case 4400:
+      arch = bfd_arch_mips;
+      break;
+
+    case 6000:
+      arch = bfd_arch_rs6000;
+      break;
+
+    default:  
+      return false;
+    }
+
+  if (arch != info->arch) 
+    return false;
+
+  if (number != info->mach)
+    return false;
+
+  return true;
+}
+
+
+/*
+FUNCTION
+	bfd_get_arch_info
+
+SYNOPSIS
+	const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
+
+DESCRIPTION
+	Return the architecture info struct in @var{abfd}.
+*/
+
+const bfd_arch_info_type *
+bfd_get_arch_info (abfd)
+     bfd *abfd;
+{
+  return abfd->arch_info;
+}
+
+
+/*
+FUNCTION
+	bfd_lookup_arch
+
+SYNOPSIS
+	const bfd_arch_info_type *bfd_lookup_arch
+		(enum bfd_architecture
+		arch,
+		unsigned long machine);
+
+DESCRIPTION
+	Look for the architecure info structure which matches the
+	arguments @var{arch} and @var{machine}. A machine of 0 matches the
+	machine/architecture structure which marks itself as the
+	default.
+*/
+
+const bfd_arch_info_type * 
+bfd_lookup_arch (arch, machine)
+     enum bfd_architecture arch;
+     unsigned long machine;
+{
+  const bfd_arch_info_type * const *app, *ap;
+
+  for (app = bfd_archures_list; *app != NULL; app++)
+    {
+      for (ap = *app; ap != NULL; ap = ap->next)
+	{
+	  if (ap->arch == arch
+	      && (ap->mach == machine
+		  || (machine == 0 && ap->the_default)))
+	    return ap;
+	}
+    }
+
+  return NULL;
+}
+
+
+/*
+FUNCTION
+	bfd_printable_arch_mach
+
+SYNOPSIS
+	const char *bfd_printable_arch_mach
+		(enum bfd_architecture arch, unsigned long machine);
+
+DESCRIPTION
+	Return a printable string representing the architecture and
+	machine type. 
+
+	This routine is depreciated.
+*/
+
+const char *
+bfd_printable_arch_mach (arch, machine)
+     enum bfd_architecture arch;
+     unsigned long machine;
+{
+    const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
+
+    if (ap)
+      return ap->printable_name;
+    return "UNKNOWN!";
+}