a9762ec78a
Switch the license of all .h files to GPLv3.
Switch the license of all .cc files to GPLv3.
633 lines
18 KiB
C
633 lines
18 KiB
C
/* OS ABI variant handling for GDB.
|
||
|
||
Copyright (C) 2001, 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
|
||
|
||
This file is part of GDB.
|
||
|
||
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 3 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, see <http://www.gnu.org/licenses/>. */
|
||
|
||
#include "defs.h"
|
||
|
||
#include "gdb_assert.h"
|
||
#include "gdb_string.h"
|
||
|
||
#include "osabi.h"
|
||
#include "arch-utils.h"
|
||
#include "gdbcmd.h"
|
||
#include "command.h"
|
||
|
||
#include "elf-bfd.h"
|
||
|
||
#ifndef GDB_OSABI_DEFAULT
|
||
#define GDB_OSABI_DEFAULT GDB_OSABI_UNKNOWN
|
||
#endif
|
||
|
||
/* State for the "set osabi" command. */
|
||
static enum { osabi_auto, osabi_default, osabi_user } user_osabi_state;
|
||
static enum gdb_osabi user_selected_osabi;
|
||
static const char *gdb_osabi_available_names[GDB_OSABI_INVALID + 3] = {
|
||
"auto",
|
||
"default",
|
||
"none",
|
||
NULL
|
||
};
|
||
static const char *set_osabi_string;
|
||
|
||
/* This table matches the indices assigned to enum gdb_osabi. Keep
|
||
them in sync. */
|
||
static const char * const gdb_osabi_names[] =
|
||
{
|
||
"none",
|
||
|
||
"SVR4",
|
||
"GNU/Hurd",
|
||
"Solaris",
|
||
"OSF/1",
|
||
"GNU/Linux",
|
||
"FreeBSD a.out",
|
||
"FreeBSD ELF",
|
||
"NetBSD a.out",
|
||
"NetBSD ELF",
|
||
"OpenBSD ELF",
|
||
"Windows CE",
|
||
"DJGPP",
|
||
"Irix",
|
||
"Interix",
|
||
"HP/UX ELF",
|
||
"HP/UX SOM",
|
||
|
||
"QNX Neutrino",
|
||
|
||
"Cygwin",
|
||
"AIX",
|
||
|
||
"<invalid>"
|
||
};
|
||
|
||
const char *
|
||
gdbarch_osabi_name (enum gdb_osabi osabi)
|
||
{
|
||
if (osabi >= GDB_OSABI_UNKNOWN && osabi < GDB_OSABI_INVALID)
|
||
return gdb_osabi_names[osabi];
|
||
|
||
return gdb_osabi_names[GDB_OSABI_INVALID];
|
||
}
|
||
|
||
/* Handler for a given architecture/OS ABI pair. There should be only
|
||
one handler for a given OS ABI each architecture family. */
|
||
struct gdb_osabi_handler
|
||
{
|
||
struct gdb_osabi_handler *next;
|
||
const struct bfd_arch_info *arch_info;
|
||
enum gdb_osabi osabi;
|
||
void (*init_osabi)(struct gdbarch_info, struct gdbarch *);
|
||
};
|
||
|
||
static struct gdb_osabi_handler *gdb_osabi_handler_list;
|
||
|
||
void
|
||
gdbarch_register_osabi (enum bfd_architecture arch, unsigned long machine,
|
||
enum gdb_osabi osabi,
|
||
void (*init_osabi)(struct gdbarch_info,
|
||
struct gdbarch *))
|
||
{
|
||
struct gdb_osabi_handler **handler_p;
|
||
const struct bfd_arch_info *arch_info = bfd_lookup_arch (arch, machine);
|
||
const char **name_ptr;
|
||
|
||
/* Registering an OS ABI handler for "unknown" is not allowed. */
|
||
if (osabi == GDB_OSABI_UNKNOWN)
|
||
{
|
||
internal_error
|
||
(__FILE__, __LINE__,
|
||
_("gdbarch_register_osabi: An attempt to register a handler for "
|
||
"OS ABI \"%s\" for architecture %s was made. The handler will "
|
||
"not be registered"),
|
||
gdbarch_osabi_name (osabi),
|
||
bfd_printable_arch_mach (arch, machine));
|
||
return;
|
||
}
|
||
|
||
gdb_assert (arch_info);
|
||
|
||
for (handler_p = &gdb_osabi_handler_list; *handler_p != NULL;
|
||
handler_p = &(*handler_p)->next)
|
||
{
|
||
if ((*handler_p)->arch_info == arch_info
|
||
&& (*handler_p)->osabi == osabi)
|
||
{
|
||
internal_error
|
||
(__FILE__, __LINE__,
|
||
_("gdbarch_register_osabi: A handler for OS ABI \"%s\" "
|
||
"has already been registered for architecture %s"),
|
||
gdbarch_osabi_name (osabi),
|
||
arch_info->printable_name);
|
||
/* If user wants to continue, override previous definition. */
|
||
(*handler_p)->init_osabi = init_osabi;
|
||
return;
|
||
}
|
||
}
|
||
|
||
(*handler_p)
|
||
= (struct gdb_osabi_handler *) xmalloc (sizeof (struct gdb_osabi_handler));
|
||
(*handler_p)->next = NULL;
|
||
(*handler_p)->arch_info = arch_info;
|
||
(*handler_p)->osabi = osabi;
|
||
(*handler_p)->init_osabi = init_osabi;
|
||
|
||
/* Add this OS ABI to the list of enum values for "set osabi", if it isn't
|
||
already there. */
|
||
for (name_ptr = gdb_osabi_available_names; *name_ptr; name_ptr ++)
|
||
{
|
||
if (*name_ptr == gdbarch_osabi_name (osabi))
|
||
return;
|
||
}
|
||
*name_ptr++ = gdbarch_osabi_name (osabi);
|
||
*name_ptr = NULL;
|
||
}
|
||
|
||
|
||
/* Sniffer to find the OS ABI for a given file's architecture and flavour.
|
||
It is legal to have multiple sniffers for each arch/flavour pair, to
|
||
disambiguate one OS's a.out from another, for example. The first sniffer
|
||
to return something other than GDB_OSABI_UNKNOWN wins, so a sniffer should
|
||
be careful to claim a file only if it knows for sure what it is. */
|
||
struct gdb_osabi_sniffer
|
||
{
|
||
struct gdb_osabi_sniffer *next;
|
||
enum bfd_architecture arch; /* bfd_arch_unknown == wildcard */
|
||
enum bfd_flavour flavour;
|
||
enum gdb_osabi (*sniffer)(bfd *);
|
||
};
|
||
|
||
static struct gdb_osabi_sniffer *gdb_osabi_sniffer_list;
|
||
|
||
void
|
||
gdbarch_register_osabi_sniffer (enum bfd_architecture arch,
|
||
enum bfd_flavour flavour,
|
||
enum gdb_osabi (*sniffer_fn)(bfd *))
|
||
{
|
||
struct gdb_osabi_sniffer *sniffer;
|
||
|
||
sniffer =
|
||
(struct gdb_osabi_sniffer *) xmalloc (sizeof (struct gdb_osabi_sniffer));
|
||
sniffer->arch = arch;
|
||
sniffer->flavour = flavour;
|
||
sniffer->sniffer = sniffer_fn;
|
||
|
||
sniffer->next = gdb_osabi_sniffer_list;
|
||
gdb_osabi_sniffer_list = sniffer;
|
||
}
|
||
|
||
|
||
enum gdb_osabi
|
||
gdbarch_lookup_osabi (bfd *abfd)
|
||
{
|
||
struct gdb_osabi_sniffer *sniffer;
|
||
enum gdb_osabi osabi, match;
|
||
int match_specific;
|
||
|
||
/* If we aren't in "auto" mode, return the specified OS ABI. */
|
||
if (user_osabi_state == osabi_user)
|
||
return user_selected_osabi;
|
||
|
||
/* If we don't have a binary, return the default OS ABI (if set) or
|
||
unknown (otherwise). */
|
||
if (abfd == NULL)
|
||
return GDB_OSABI_DEFAULT;
|
||
|
||
match = GDB_OSABI_UNKNOWN;
|
||
match_specific = 0;
|
||
|
||
for (sniffer = gdb_osabi_sniffer_list; sniffer != NULL;
|
||
sniffer = sniffer->next)
|
||
{
|
||
if ((sniffer->arch == bfd_arch_unknown /* wildcard */
|
||
|| sniffer->arch == bfd_get_arch (abfd))
|
||
&& sniffer->flavour == bfd_get_flavour (abfd))
|
||
{
|
||
osabi = (*sniffer->sniffer) (abfd);
|
||
if (osabi < GDB_OSABI_UNKNOWN || osabi >= GDB_OSABI_INVALID)
|
||
{
|
||
internal_error
|
||
(__FILE__, __LINE__,
|
||
_("gdbarch_lookup_osabi: invalid OS ABI (%d) from sniffer "
|
||
"for architecture %s flavour %d"),
|
||
(int) osabi,
|
||
bfd_printable_arch_mach (bfd_get_arch (abfd), 0),
|
||
(int) bfd_get_flavour (abfd));
|
||
}
|
||
else if (osabi != GDB_OSABI_UNKNOWN)
|
||
{
|
||
/* A specific sniffer always overrides a generic sniffer.
|
||
Croak on multiple match if the two matches are of the
|
||
same class. If the user wishes to continue, we'll use
|
||
the first match. */
|
||
if (match != GDB_OSABI_UNKNOWN)
|
||
{
|
||
if ((match_specific && sniffer->arch != bfd_arch_unknown)
|
||
|| (!match_specific && sniffer->arch == bfd_arch_unknown))
|
||
{
|
||
internal_error
|
||
(__FILE__, __LINE__,
|
||
_("gdbarch_lookup_osabi: multiple %sspecific OS ABI "
|
||
"match for architecture %s flavour %d: first "
|
||
"match \"%s\", second match \"%s\""),
|
||
match_specific ? "" : "non-",
|
||
bfd_printable_arch_mach (bfd_get_arch (abfd), 0),
|
||
(int) bfd_get_flavour (abfd),
|
||
gdbarch_osabi_name (match),
|
||
gdbarch_osabi_name (osabi));
|
||
}
|
||
else if (sniffer->arch != bfd_arch_unknown)
|
||
{
|
||
match = osabi;
|
||
match_specific = 1;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
match = osabi;
|
||
if (sniffer->arch != bfd_arch_unknown)
|
||
match_specific = 1;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/* If we didn't find a match, but a default was specified at configure
|
||
time, return the default. */
|
||
if (GDB_OSABI_DEFAULT != GDB_OSABI_UNKNOWN && match == GDB_OSABI_UNKNOWN)
|
||
return GDB_OSABI_DEFAULT;
|
||
else
|
||
return match;
|
||
}
|
||
|
||
|
||
/* Return non-zero if architecture A can run code written for
|
||
architecture B. */
|
||
static int
|
||
can_run_code_for (const struct bfd_arch_info *a, const struct bfd_arch_info *b)
|
||
{
|
||
/* BFD's 'A->compatible (A, B)' functions return zero if A and B are
|
||
incompatible. But if they are compatible, it returns the 'more
|
||
featureful' of the two arches. That is, if A can run code
|
||
written for B, but B can't run code written for A, then it'll
|
||
return A.
|
||
|
||
struct bfd_arch_info objects are singletons: that is, there's
|
||
supposed to be exactly one instance for a given machine. So you
|
||
can tell whether two are equivalent by comparing pointers. */
|
||
return (a == b || a->compatible (a, b) == a);
|
||
}
|
||
|
||
|
||
void
|
||
gdbarch_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
||
{
|
||
struct gdb_osabi_handler *handler;
|
||
|
||
if (info.osabi == GDB_OSABI_UNKNOWN)
|
||
{
|
||
/* Don't complain about an unknown OSABI. Assume the user knows
|
||
what they are doing. */
|
||
return;
|
||
}
|
||
|
||
for (handler = gdb_osabi_handler_list; handler != NULL;
|
||
handler = handler->next)
|
||
{
|
||
if (handler->osabi != info.osabi)
|
||
continue;
|
||
|
||
/* If the architecture described by ARCH_INFO can run code for
|
||
the architcture we registered the handler for, then the
|
||
handler is applicable. Note, though, that if the handler is
|
||
for an architecture that is a superset of ARCH_INFO, we can't
|
||
use that --- it would be perfectly correct for it to install
|
||
gdbarch methods that refer to registers / instructions /
|
||
other facilities ARCH_INFO doesn't have.
|
||
|
||
NOTE: kettenis/20021027: There may be more than one machine
|
||
type that is compatible with the desired machine type. Right
|
||
now we simply return the first match, which is fine for now.
|
||
However, we might want to do something smarter in the future. */
|
||
/* NOTE: cagney/2003-10-23: The code for "a can_run_code_for b"
|
||
is implemented using BFD's compatible method (a->compatible
|
||
(b) == a -- the lowest common denominator between a and b is
|
||
a). That method's definition of compatible may not be as you
|
||
expect. For instance the test "amd64 can run code for i386"
|
||
(or more generally "64-bit ISA can run code for the 32-bit
|
||
ISA"). BFD doesn't normally consider 32-bit and 64-bit
|
||
"compatible" so it doesn't succeed. */
|
||
if (can_run_code_for (info.bfd_arch_info, handler->arch_info))
|
||
{
|
||
(*handler->init_osabi) (info, gdbarch);
|
||
return;
|
||
}
|
||
}
|
||
|
||
warning
|
||
("A handler for the OS ABI \"%s\" is not built into this configuration\n"
|
||
"of GDB. Attempting to continue with the default %s settings.\n",
|
||
gdbarch_osabi_name (info.osabi),
|
||
info.bfd_arch_info->printable_name);
|
||
}
|
||
|
||
/* Limit on the amount of data to be read. */
|
||
#define MAX_NOTESZ 128
|
||
|
||
/* Return non-zero if NOTE matches NAME, DESCSZ and TYPE. */
|
||
|
||
static int
|
||
check_note (bfd *abfd, asection *sect, const char *note,
|
||
const char *name, unsigned long descsz, unsigned long type)
|
||
{
|
||
unsigned long notesz;
|
||
|
||
/* Calculate the size of this note. */
|
||
notesz = strlen (name) + 1;
|
||
notesz = ((notesz + 3) & ~3);
|
||
notesz += descsz;
|
||
notesz = ((notesz + 3) & ~3);
|
||
|
||
/* If this assertion triggers, increase MAX_NOTESZ. */
|
||
gdb_assert (notesz <= MAX_NOTESZ);
|
||
|
||
/* Check whether SECT is big enough to comtain the complete note. */
|
||
if (notesz > bfd_section_size (abfd, sect))
|
||
return 0;
|
||
|
||
/* Check the note name. */
|
||
if (bfd_h_get_32 (abfd, note) != (strlen (name) + 1)
|
||
|| strcmp (note + 12, name) != 0)
|
||
return 0;
|
||
|
||
/* Check the descriptor size. */
|
||
if (bfd_h_get_32 (abfd, note + 4) != descsz)
|
||
return 0;
|
||
|
||
/* Check the note type. */
|
||
if (bfd_h_get_32 (abfd, note + 8) != type)
|
||
return 0;
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Generic sniffer for ELF flavoured files. */
|
||
|
||
void
|
||
generic_elf_osabi_sniff_abi_tag_sections (bfd *abfd, asection *sect, void *obj)
|
||
{
|
||
enum gdb_osabi *osabi = obj;
|
||
const char *name;
|
||
unsigned int sectsize;
|
||
char *note;
|
||
|
||
name = bfd_get_section_name (abfd, sect);
|
||
sectsize = bfd_section_size (abfd, sect);
|
||
|
||
/* Limit the amount of data to read. */
|
||
if (sectsize > MAX_NOTESZ)
|
||
sectsize = MAX_NOTESZ;
|
||
|
||
note = alloca (sectsize);
|
||
bfd_get_section_contents (abfd, sect, note, 0, sectsize);
|
||
|
||
/* .note.ABI-tag notes, used by GNU/Linux and FreeBSD. */
|
||
if (strcmp (name, ".note.ABI-tag") == 0)
|
||
{
|
||
/* GNU. */
|
||
if (check_note (abfd, sect, note, "GNU", 16, NT_GNU_ABI_TAG))
|
||
{
|
||
unsigned int abi_tag = bfd_h_get_32 (abfd, note + 16);
|
||
|
||
switch (abi_tag)
|
||
{
|
||
case GNU_ABI_TAG_LINUX:
|
||
*osabi = GDB_OSABI_LINUX;
|
||
break;
|
||
|
||
case GNU_ABI_TAG_HURD:
|
||
*osabi = GDB_OSABI_HURD;
|
||
break;
|
||
|
||
case GNU_ABI_TAG_SOLARIS:
|
||
*osabi = GDB_OSABI_SOLARIS;
|
||
break;
|
||
|
||
case GNU_ABI_TAG_FREEBSD:
|
||
*osabi = GDB_OSABI_FREEBSD_ELF;
|
||
break;
|
||
|
||
case GNU_ABI_TAG_NETBSD:
|
||
*osabi = GDB_OSABI_NETBSD_ELF;
|
||
break;
|
||
|
||
default:
|
||
internal_error (__FILE__, __LINE__, _("\
|
||
generic_elf_osabi_sniff_abi_tag_sections: unknown OS number %d"),
|
||
abi_tag);
|
||
}
|
||
return;
|
||
}
|
||
|
||
/* FreeBSD. */
|
||
if (check_note (abfd, sect, note, "FreeBSD", 4, NT_FREEBSD_ABI_TAG))
|
||
{
|
||
/* There is no need to check the version yet. */
|
||
*osabi = GDB_OSABI_FREEBSD_ELF;
|
||
return;
|
||
}
|
||
|
||
return;
|
||
}
|
||
|
||
/* .note.netbsd.ident notes, used by NetBSD. */
|
||
if (strcmp (name, ".note.netbsd.ident") == 0
|
||
&& check_note (abfd, sect, note, "NetBSD", 4, NT_NETBSD_IDENT))
|
||
{
|
||
/* There is no need to check the version yet. */
|
||
*osabi = GDB_OSABI_NETBSD_ELF;
|
||
return;
|
||
}
|
||
|
||
/* .note.openbsd.ident notes, used by OpenBSD. */
|
||
if (strcmp (name, ".note.openbsd.ident") == 0
|
||
&& check_note (abfd, sect, note, "OpenBSD", 4, NT_OPENBSD_IDENT))
|
||
{
|
||
/* There is no need to check the version yet. */
|
||
*osabi = GDB_OSABI_OPENBSD_ELF;
|
||
return;
|
||
}
|
||
|
||
/* .note.netbsdcore.procinfo notes, used by NetBSD. */
|
||
if (strcmp (name, ".note.netbsdcore.procinfo") == 0)
|
||
{
|
||
*osabi = GDB_OSABI_NETBSD_ELF;
|
||
return;
|
||
}
|
||
}
|
||
|
||
static enum gdb_osabi
|
||
generic_elf_osabi_sniffer (bfd *abfd)
|
||
{
|
||
unsigned int elfosabi;
|
||
enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
|
||
|
||
elfosabi = elf_elfheader (abfd)->e_ident[EI_OSABI];
|
||
|
||
switch (elfosabi)
|
||
{
|
||
case ELFOSABI_NONE:
|
||
/* When the EI_OSABI field in the ELF header is ELFOSABI_NONE
|
||
(0), then the ELF structures in the file are conforming to
|
||
the base specification for that machine (there are no
|
||
OS-specific extensions). In order to determine the real OS
|
||
in use we must look for OS-specific notes. */
|
||
bfd_map_over_sections (abfd,
|
||
generic_elf_osabi_sniff_abi_tag_sections,
|
||
&osabi);
|
||
break;
|
||
|
||
case ELFOSABI_FREEBSD:
|
||
osabi = GDB_OSABI_FREEBSD_ELF;
|
||
break;
|
||
|
||
case ELFOSABI_NETBSD:
|
||
osabi = GDB_OSABI_NETBSD_ELF;
|
||
break;
|
||
|
||
case ELFOSABI_LINUX:
|
||
osabi = GDB_OSABI_LINUX;
|
||
break;
|
||
|
||
case ELFOSABI_HURD:
|
||
osabi = GDB_OSABI_HURD;
|
||
break;
|
||
|
||
case ELFOSABI_SOLARIS:
|
||
osabi = GDB_OSABI_SOLARIS;
|
||
break;
|
||
|
||
case ELFOSABI_HPUX:
|
||
/* For some reason the default value for the EI_OSABI field is
|
||
ELFOSABI_HPUX for all PA-RISC targets (with the exception of
|
||
GNU/Linux). We use HP-UX ELF as the default, but let any
|
||
OS-specific notes override this. */
|
||
osabi = GDB_OSABI_HPUX_ELF;
|
||
bfd_map_over_sections (abfd,
|
||
generic_elf_osabi_sniff_abi_tag_sections,
|
||
&osabi);
|
||
break;
|
||
}
|
||
|
||
if (osabi == GDB_OSABI_UNKNOWN)
|
||
{
|
||
/* The FreeBSD folks have been naughty; they stored the string
|
||
"FreeBSD" in the padding of the e_ident field of the ELF
|
||
header to "brand" their ELF binaries in FreeBSD 3.x. */
|
||
if (memcmp (&elf_elfheader (abfd)->e_ident[8],
|
||
"FreeBSD", sizeof ("FreeBSD")) == 0)
|
||
osabi = GDB_OSABI_FREEBSD_ELF;
|
||
}
|
||
|
||
return osabi;
|
||
}
|
||
|
||
static void
|
||
set_osabi (char *args, int from_tty, struct cmd_list_element *c)
|
||
{
|
||
struct gdbarch_info info;
|
||
|
||
if (strcmp (set_osabi_string, "auto") == 0)
|
||
user_osabi_state = osabi_auto;
|
||
else if (strcmp (set_osabi_string, "default") == 0)
|
||
{
|
||
user_selected_osabi = GDB_OSABI_DEFAULT;
|
||
user_osabi_state = osabi_user;
|
||
}
|
||
else if (strcmp (set_osabi_string, "none") == 0)
|
||
{
|
||
user_selected_osabi = GDB_OSABI_UNKNOWN;
|
||
user_osabi_state = osabi_user;
|
||
}
|
||
else
|
||
{
|
||
int i;
|
||
for (i = 1; i < GDB_OSABI_INVALID; i++)
|
||
if (strcmp (set_osabi_string, gdbarch_osabi_name (i)) == 0)
|
||
{
|
||
user_selected_osabi = i;
|
||
user_osabi_state = osabi_user;
|
||
break;
|
||
}
|
||
if (i == GDB_OSABI_INVALID)
|
||
internal_error (__FILE__, __LINE__,
|
||
_("Invalid OS ABI \"%s\" passed to command handler."),
|
||
set_osabi_string);
|
||
}
|
||
|
||
/* NOTE: At some point (true multiple architectures) we'll need to be more
|
||
graceful here. */
|
||
gdbarch_info_init (&info);
|
||
if (! gdbarch_update_p (info))
|
||
internal_error (__FILE__, __LINE__, _("Updating OS ABI failed."));
|
||
}
|
||
|
||
static void
|
||
show_osabi (struct ui_file *file, int from_tty, struct cmd_list_element *c,
|
||
const char *value)
|
||
{
|
||
if (user_osabi_state == osabi_auto)
|
||
fprintf_filtered (file,
|
||
_("The current OS ABI is \"auto\" (currently \"%s\").\n"),
|
||
gdbarch_osabi_name (gdbarch_osabi (current_gdbarch)));
|
||
else
|
||
fprintf_filtered (file, _("The current OS ABI is \"%s\".\n"),
|
||
gdbarch_osabi_name (user_selected_osabi));
|
||
|
||
if (GDB_OSABI_DEFAULT != GDB_OSABI_UNKNOWN)
|
||
fprintf_filtered (file, _("The default OS ABI is \"%s\".\n"),
|
||
gdbarch_osabi_name (GDB_OSABI_DEFAULT));
|
||
}
|
||
|
||
extern initialize_file_ftype _initialize_gdb_osabi; /* -Wmissing-prototype */
|
||
|
||
void
|
||
_initialize_gdb_osabi (void)
|
||
{
|
||
struct cmd_list_element *c;
|
||
|
||
if (strcmp (gdb_osabi_names[GDB_OSABI_INVALID], "<invalid>") != 0)
|
||
internal_error
|
||
(__FILE__, __LINE__,
|
||
_("_initialize_gdb_osabi: gdb_osabi_names[] is inconsistent"));
|
||
|
||
/* Register a generic sniffer for ELF flavoured files. */
|
||
gdbarch_register_osabi_sniffer (bfd_arch_unknown,
|
||
bfd_target_elf_flavour,
|
||
generic_elf_osabi_sniffer);
|
||
|
||
/* Register the "set osabi" command. */
|
||
add_setshow_enum_cmd ("osabi", class_support, gdb_osabi_available_names,
|
||
&set_osabi_string, _("\
|
||
Set OS ABI of target."), _("\
|
||
Show OS ABI of target."), NULL,
|
||
set_osabi,
|
||
show_osabi,
|
||
&setlist, &showlist);
|
||
user_osabi_state = osabi_auto;
|
||
}
|