/* BFD library support routines for architectures.
Copyright (C) 1990-1991 Free Software Foundation, Inc.
- Hacked by John Gilmore of Cygnus Support.
+ Hacked by John Gilmore and Steve Chamberlain of Cygnus Support.
+
This file is part of BFD, the Binary File Descriptor library.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-/*doc*
-@section Architectures
-BFD's idea of an architecture is implimented in @code{archures.c}. BFD
-keeps two atoms in a BFD describing the architecture of the data
-attached to the BFD, the @code{enum bfd_architecture arch} field and
-the @code{unsigned long machine} field.
+/*
+
+SECTION
+ Architectures
+
+ BFD's idea of an architecture is implimented in
+ <<archures.c>>. 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 arch information is provided by each architecture package.
+ The set of default architectures is selected by the #define
+ <<SELECT_ARCHITECTURES>>. This is normally set up in the
+ <<config\/h\->> 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 arches 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).
*/
-/*proto* bfd_architecture
-This enum gives the object file's CPU
-architecture, in a global sense. E.g. what processor family does it
-belong to? There is another field, which indicates what processor
-within the family is in use. The machine gives a number which
-distingushes 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 *}
- bfd_arch_mips, {* MIPS Rxxxx *}
- bfd_arch_i386, {* Intel 386 *}
- bfd_arch_ns32k, {* National Semiconductor 32xxx *}
- bfd_arch_tahoe, {* CCI/Harris Tahoe *}
- bfd_arch_i860, {* Intel 860 *}
- bfd_arch_romp, {* IBM ROMP RS/6000 *}
- bfd_arch_alliant, {* Alliant *}
- bfd_arch_convex, {* Convex *}
- bfd_arch_m88k, {* Motorola 88xxx *}
- bfd_arch_pyramid, {* Pyramid Technology *}
- bfd_arch_h8_300, {* Hitachi H8/300 *}
- bfd_arch_last
- };
-*-
+/*
+
+SUBSECTION
+ bfd_architecture
+
+DESCRIPTION
+ This enum gives the object file's CPU architecture, in a
+ global sense. E.g. what processor family does it belong to?
+ There is another field, which indicates what processor within
+ the family is in use. The machine gives a number which
+ distingushes 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 *}
+. bfd_arch_mips, {* MIPS Rxxxx *}
+. bfd_arch_i386, {* Intel 386 *}
+. bfd_arch_ns32k, {* National Semiconductor 32xxx *}
+. 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 *}
+. bfd_arch_rs6000, {* IBM RS/6000 *}
+. bfd_arch_hppa, {* HP PA RISC *}
+. bfd_arch_last
+. };
-stuff
*/
/* $Id$ */
-#include <sysdep.h>
#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+
+/*
+
+SUBSECTION
+ bfd_arch_info
+
+DESCRIPTION
+ This structure contains information on architectures for use
+ within BFD.
+
+.typedef int bfd_reloc_code_type;
+.
+.typedef struct bfd_arch_info
+.{
+. int bits_per_word;
+. int bits_per_address;
+. int bits_per_byte;
+. enum bfd_architecture arch;
+. long mach;
+. 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 * EXFUN((*compatible),
+. (CONST struct bfd_arch_info *a,
+. CONST struct bfd_arch_info *b));
+.
+. boolean EXFUN((*scan),(CONST struct bfd_arch_info *,CONST char *));
+. unsigned int EXFUN((*disassemble),(bfd_vma addr, CONST char *data,
+. PTR stream));
+.
+. unsigned int segment_size;
+. unsigned int page_size;
+.
+. struct bfd_arch_info *next;
+.} bfd_arch_info_type;
+*/
-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},
-};
+bfd_arch_info_type *bfd_arch_info_list;
+
+
+/*
+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 arch info structure
-/*proto* bfd_prinable_arch_mach
-Return a printable string representing the architecture and machine
-type. The result is only good until the next call to
-@code{bfd_printable_arch_mach}.
-*; PROTO(CONST char *,bfd_printable_arch_mach,
- (enum bfd_architecture arch, unsigned long machine));
*/
CONST char *
-DEFUN(bfd_printable_arch_mach,(arch, machine),
- enum bfd_architecture arch AND
- unsigned long machine)
+DEFUN(bfd_printable_name, (abfd),
+ bfd *abfd)
{
- struct arch_print *ap;
+ return abfd->arch_info->printable_name;
+}
- for (ap = arch_print; ap->astr; ap++) {
- if (ap->arch == arch) {
- if (machine == 0)
- return ap->astr;
- return (*ap->mach_print)(ap, machine);
- }
+
+
+/*
+FUNCTION
+ bfd_scan_arch
+
+SYNOPSIS
+ bfd_arch_info_type *bfd_scan_arch(CONST char *);
+
+DESCRIPTION
+ This routine is provided with a string and tries to work out
+ if bfd supports any cpu which could be described with the name
+ provided. The routine returns a pointer to an arch_info
+ structure if a machine is found, otherwise NULL.
+
+*/
+
+bfd_arch_info_type *
+DEFUN(bfd_scan_arch,(string),
+ CONST char *string)
+{
+ struct bfd_arch_info *ap;
+
+ /* Look through all the installed architectures */
+ for (ap = bfd_arch_info_list;
+ ap != (bfd_arch_info_type *)NULL;
+ ap = ap->next) {
+
+ if (ap->scan(ap, string))
+ return ap;
}
- return "UNKNOWN!";
+ return (bfd_arch_info_type *)NULL;
+}
+
+
+
+/*
+FUNCTION
+ bfd_arch_get_compatible
+
+SYNOPSIS
+ CONST bfd_arch_info_type *bfd_arch_get_compatible(
+ CONST bfd *abfd,
+ CONST bfd *bbfd);
+
+DESCRIPTION
+ This routine is used to determine whether two BFDs'
+ architectures and achine types are compatible. It 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 *
+DEFUN(bfd_arch_get_compatible,(abfd, bbfd),
+CONST bfd *abfd AND
+CONST bfd *bbfd)
+
+{
+ return abfd->arch_info->compatible(abfd->arch_info,bbfd->arch_info);
}
-static char *
-prt_num_mach (ap, machine)
- struct arch_print *ap;
- unsigned long machine;
+
+/*
+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 bfd_arch_info_type bfd_default_arch_struct;
+
+*/
+
+bfd_arch_info_type bfd_default_arch_struct =
{
- static char result[20];
+ 32,32,8,bfd_arch_unknown,0,"unknown","unknown",1,true,
+ bfd_default_compatible,
+ bfd_default_scan,
+ 0,
+};
+
+/*
+FUNCTION
+ bfd_set_arch_info
+
+SYNOPSIS
+ void bfd_set_arch_info(bfd *, bfd_arch_info_type *);
- sprintf(result, "%s:%ld", ap->astr, (long) machine);
- return result;
+*/
+
+void DEFUN(bfd_set_arch_info,(abfd, arg),
+bfd *abfd AND
+bfd_arch_info_type *arg)
+{
+ abfd->arch_info = arg;
}
-/*proto*
-*i bfd_scan_arch_mach
-Scan a string and attempt to turn it into an archive and machine type combination.
-*; PROTO(boolean, bfd_scan_arch_mach,
- (CONST char *, enum bfd_architecture *, unsigned long *));
+/*
+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 a bfd. This finds the
+ correct pointer to structure and inserts it into the arch_info
+ pointer.
*/
-boolean
-DEFUN(bfd_scan_arch_mach,(string, archp, machinep),
- CONST char *string AND
- enum bfd_architecture *archp AND
- unsigned long *machinep)
+boolean DEFUN(bfd_default_set_arch_mach,(abfd, arch, mach),
+ bfd *abfd AND
+ enum bfd_architecture arch AND
+ unsigned long mach)
{
- 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;
+ static struct bfd_arch_info *old_ptr = &bfd_default_arch_struct;
+ boolean found = false;
+ /* run through the table to find the one we want, we keep a little
+ cache to speed things up */
+ if (old_ptr == 0 || arch != old_ptr->arch || mach != old_ptr->mach) {
+ bfd_arch_info_type *ptr;
+ old_ptr = (bfd_arch_info_type *)NULL;
+ for (ptr = bfd_arch_info_list;
+ ptr != (bfd_arch_info_type *)NULL;
+ ptr= ptr->next) {
+ if (ptr->arch == arch &&
+ ((ptr->mach == mach) || (ptr->the_default && mach == 0))) {
+ old_ptr = ptr;
+ found = true;
+ break;
}
- if (machinep)
- *machinep = 0;
- return true;
}
- }
+ if (found==false) {
+ /*looked for it and it wasn't there, so put in the default */
+ old_ptr = &bfd_default_arch_struct;
- /* 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;
+ }
+ }
+ else {
+ /* it was in the cache */
+ found = true;
}
- return false;
+ abfd->arch_info = old_ptr;
+
+ return found;
}
-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;
+
+
+
+
+/*
+FUNCTION
+ bfd_get_arch
+
+SYNOPSIS
+ enum bfd_architecture bfd_get_arch(bfd *abfd);
+
+DESCRIPTION
+ Returns the enumerated type which describes the supplied bfd's
+ architecture
+
+*/
+
+enum bfd_architecture DEFUN(bfd_get_arch, (abfd), bfd *abfd)
{
- 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;
- }
+ return abfd->arch_info->arch;
+}
+
+/*
+FUNCTION
+ bfd_get_mach
+
+SYNOPSIS
+ unsigned long bfd_get_mach(bfd *abfd);
+
+DESCRIPTION
+ Returns the long type which describes the supplied bfd's
+ machine
+*/
+
+unsigned long
+DEFUN(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
+ Returns the number of bits in one of the architectures bytes
+
+*/
+
+unsigned int DEFUN(bfd_arch_bits_per_byte, (abfd), bfd *abfd)
+ {
+ return abfd->arch_info->bits_per_byte;
}
- if (archp)
- *archp = arch;
- if (machinep)
- *machinep = machine;
- return true;
+/*
+FUNCTION
+ bfd_arch_bits_per_address
+
+SYNOPSIS
+ unsigned int bfd_arch_bits_per_address(bfd *abfd);
+
+DESCRIPTION
+ Returns the number of bits in one of the architectures addresses
+*/
+
+unsigned int DEFUN(bfd_arch_bits_per_address, (abfd), bfd *abfd)
+ {
+ return abfd->arch_info->bits_per_address;
+ }
+
+
+
+extern void EXFUN(bfd_h8300_arch,(void));
+extern void EXFUN(bfd_i960_arch,(void));
+extern void EXFUN(bfd_empty_arch,(void));
+extern void EXFUN(bfd_sparc_arch,(void));
+extern void EXFUN(bfd_m88k_arch,(void));
+extern void EXFUN(bfd_m68k_arch,(void));
+extern void EXFUN(bfd_vax_arch,(void));
+extern void EXFUN(bfd_a29k_arch,(void));
+extern void EXFUN(bfd_mips_arch,(void));
+extern void EXFUN(bfd_i386_arch,(void));
+extern void EXFUN(bfd_rs6000_arch,(void));
+extern void EXFUN(bfd_hppa_arch,(void));
+
+
+
+static void EXFUN((*archures_init_table[]),()) =
+{
+#ifdef SELECT_ARCHITECTURES
+ SELECT_ARCHITECTURES,
+#else
+ bfd_sparc_arch,
+ bfd_a29k_arch,
+ bfd_mips_arch,
+ bfd_h8300_arch,
+ bfd_i386_arch,
+ bfd_m88k_arch,
+ bfd_i960_arch,
+ bfd_m68k_arch,
+ bfd_vax_arch,
+ bfd_rs6000_arch,
+ bfd_hppa_arch,
+#endif
+ 0
+ };
+
+
+
+/*
+INTERNAL_FUNCTION
+ bfd_arch_init
+
+SYNOPSIS
+ void bfd_arch_init(void);
+
+DESCRIPTION
+ This routine initializes the architecture dispatch table by
+ calling all installed architecture packages and getting them
+ to poke around.
+*/
+
+void
+DEFUN_VOID(bfd_arch_init)
+{
+ void EXFUN((**ptable),());
+ for (ptable = archures_init_table;
+ *ptable ;
+ ptable++)
+ {
+ (*ptable)();
+ }
}
-\f
-/* Intel 960 machine variants. */
-static char *
-prt_960_mach (ap, machine)
- struct arch_print *ap;
- unsigned long machine;
+
+/*
+INTERNAL_FUNCTION
+ bfd_arch_linkin
+
+SYNOPSIS
+ void bfd_arch_linkin(bfd_arch_info_type *);
+
+DESCRIPTION
+ Link the provided arch info structure into the list
+*/
+
+void DEFUN(bfd_arch_linkin,(ptr),
+ bfd_arch_info_type *ptr)
{
- 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;
+ ptr->next = bfd_arch_info_list;
+ bfd_arch_info_list = ptr;
}
-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;
+
+/*
+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 *
+DEFUN(bfd_default_compatible,(a,b),
+ CONST bfd_arch_info_type *a AND
+ CONST bfd_arch_info_type *b)
{
- 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;
+ if(a->arch != b->arch) return NULL;
+
+ if (a->mach > b->mach) {
+ return a;
+ }
+ if (b->mach > a->mach) {
+ return b;
+ }
+ return a;
}
-\f
-/*proto*
-*i bfd_arch_compatible
-This routine is used to determine whether two BFDs' architectures and machine types are
-compatible. It calculates the lowest common denominator between the
-two architectures and machine types implied by the BFDs and sets the
-objects pointed at by @var{archp} and @var{machine} if non NULL.
-
-This routine returns @code{true} if the BFDs are of compatible type,
-otherwise @code{false}.
-*; PROTO(boolean, bfd_arch_compatible,
- (bfd *abfd,
- bfd *bbfd,
- enum bfd_architecture *archp,
- unsigned long *machinep));
-*-*/
-
-boolean
-DEFUN(bfd_arch_compatible,(abfd, bbfd, archp, machinep),
- bfd *abfd AND
- bfd *bbfd AND
- enum bfd_architecture *archp AND
- unsigned long *machinep)
+/*
+INTERNAL_FUNCTION
+ bfd_default_scan
+
+SYNOPSIS
+ boolean bfd_default_scan(CONST struct bfd_arch_info *, CONST char *);
+
+DESCRIPTION
+ The default function for working out whether this is an
+ architecture hit and a machine hit.
+*/
+
+boolean
+DEFUN(bfd_default_scan,(info, string),
+CONST struct bfd_arch_info *info AND
+CONST char *string)
{
- 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;
+ 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;
}
- }
- /* Set result based on our pick */
- if (!pick_a) {
- archa = archb;
- macha = machb;
- }
- if (archp)
- *archp = archa;
- if (machinep)
- *machinep = macha;
+ /* 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 68010:
+ case 68020:
+ case 68030:
+ case 68040:
+ case 68332:
+ case 68050:
+ case 68000:
+ arch = bfd_arch_m68k;
+ break;
+ case 386:
+ case 80386:
+ case 486:
+ arch = bfd_arch_i386;
+ break;
+ case 29000:
+ arch = bfd_arch_a29k;
+ break;
+
+ case 32016:
+ case 32032:
+ case 32132:
+ case 32232:
+ case 32332:
+ case 32432:
+ case 32532:
+ case 32000:
+ arch = bfd_arch_ns32k;
+ break;
+
+ case 860:
+ case 80860:
+ arch = bfd_arch_i860;
+ 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
- return true;
+
+SYNOPSIS
+ bfd_arch_info_type * bfd_get_arch_info(bfd *);
+
+*/
+
+bfd_arch_info_type *
+DEFUN(bfd_get_arch_info,(abfd),
+bfd *abfd)
+{
+ return abfd->arch_info;
}
-/*proto* bfd_set_arch_mach
-Set atch mach
-*+
-#define bfd_set_arch_mach(abfd, arch, mach) \
- BFD_SEND (abfd, _bfd_set_arch_mach,\
- (abfd, arch, mach))
-*-
+/*
+FUNCTION
+ bfd_lookup_arch
+
+SYNOPSIS
+ bfd_arch_info_type *bfd_lookup_arch
+ (enum bfd_architecture
+ arch,
+ long machine);
+
+DESCRIPTION
+ Look for the architecure info struct which matches the
+ arguments given. A machine of 0 will match the
+ machine/architecture structure which marks itself as the
+ default.
*/
+bfd_arch_info_type *
+DEFUN(bfd_lookup_arch,(arch, machine),
+enum bfd_architecture arch AND
+long machine)
+{
+ bfd_arch_info_type *ap;
+ bfd_check_init();
+ for (ap = bfd_arch_info_list;
+ ap != (bfd_arch_info_type *)NULL;
+ ap = ap->next) {
+ if (ap->arch == arch &&
+ ((ap->mach == machine)
+ || (ap->the_default && machine == 0))) {
+ return ap;
+ }
+ }
+ return (bfd_arch_info_type *)NULL;
+}
+
-foo() { }
+/*
+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.
+
+ NB. The use of this routine is depreciated.
+*/
+
+CONST char *
+DEFUN(bfd_printable_arch_mach,(arch, machine),
+ enum bfd_architecture arch AND
+ unsigned long machine)
+{
+ bfd_arch_info_type *ap = bfd_lookup_arch(arch, machine);
+ if(ap) return ap->printable_name;
+ return "UNKNOWN!";
+}
projects / binutils.git / blobdiff