658 lines
16 KiB
C
658 lines
16 KiB
C
/* Scheme interface to architecture.
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Copyright (C) 2014-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* See README file in this directory for implementation notes, coding
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conventions, et.al. */
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#include "defs.h"
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#include "charset.h"
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#include "gdbarch.h"
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#include "arch-utils.h"
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#include "guile-internal.h"
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/* The <gdb:arch> smob.
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The typedef for this struct is in guile-internal.h. */
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struct _arch_smob
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{
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/* This always appears first. */
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gdb_smob base;
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struct gdbarch *gdbarch;
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};
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static const char arch_smob_name[] = "gdb:arch";
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/* The tag Guile knows the arch smob by. */
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static scm_t_bits arch_smob_tag;
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static struct gdbarch_data *arch_object_data = NULL;
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static int arscm_is_arch (SCM);
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/* Administrivia for arch smobs. */
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/* The smob "print" function for <gdb:arch>. */
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static int
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arscm_print_arch_smob (SCM self, SCM port, scm_print_state *pstate)
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{
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arch_smob *a_smob = (arch_smob *) SCM_SMOB_DATA (self);
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struct gdbarch *gdbarch = a_smob->gdbarch;
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gdbscm_printf (port, "#<%s", arch_smob_name);
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gdbscm_printf (port, " %s", gdbarch_bfd_arch_info (gdbarch)->printable_name);
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scm_puts (">", port);
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scm_remember_upto_here_1 (self);
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/* Non-zero means success. */
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return 1;
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}
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/* Low level routine to create a <gdb:arch> object for GDBARCH. */
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static SCM
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arscm_make_arch_smob (struct gdbarch *gdbarch)
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{
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arch_smob *a_smob = (arch_smob *)
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scm_gc_malloc (sizeof (arch_smob), arch_smob_name);
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SCM a_scm;
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a_smob->gdbarch = gdbarch;
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a_scm = scm_new_smob (arch_smob_tag, (scm_t_bits) a_smob);
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gdbscm_init_gsmob (&a_smob->base);
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return a_scm;
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}
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/* Return the gdbarch field of A_SMOB. */
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struct gdbarch *
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arscm_get_gdbarch (arch_smob *a_smob)
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{
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return a_smob->gdbarch;
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}
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/* Return non-zero if SCM is an architecture smob. */
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static int
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arscm_is_arch (SCM scm)
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{
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return SCM_SMOB_PREDICATE (arch_smob_tag, scm);
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}
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/* (arch? object) -> boolean */
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static SCM
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gdbscm_arch_p (SCM scm)
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{
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return scm_from_bool (arscm_is_arch (scm));
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}
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/* Associates an arch_object with GDBARCH as gdbarch_data via the gdbarch
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post init registration mechanism (gdbarch_data_register_post_init). */
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static void *
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arscm_object_data_init (struct gdbarch *gdbarch)
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{
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SCM arch_scm = arscm_make_arch_smob (gdbarch);
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/* This object lasts the duration of the GDB session, so there is no
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call to scm_gc_unprotect_object for it. */
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scm_gc_protect_object (arch_scm);
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return (void *) arch_scm;
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}
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/* Return the <gdb:arch> object corresponding to GDBARCH.
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The object is cached in GDBARCH so this is simple. */
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SCM
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arscm_scm_from_arch (struct gdbarch *gdbarch)
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{
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SCM a_scm = (SCM) gdbarch_data (gdbarch, arch_object_data);
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return a_scm;
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}
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/* Return the <gdb:arch> smob in SELF.
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Throws an exception if SELF is not a <gdb:arch> object. */
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static SCM
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arscm_get_arch_arg_unsafe (SCM self, int arg_pos, const char *func_name)
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{
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SCM_ASSERT_TYPE (arscm_is_arch (self), self, arg_pos, func_name,
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arch_smob_name);
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return self;
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}
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/* Return a pointer to the arch smob of SELF.
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Throws an exception if SELF is not a <gdb:arch> object. */
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arch_smob *
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arscm_get_arch_smob_arg_unsafe (SCM self, int arg_pos, const char *func_name)
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{
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SCM a_scm = arscm_get_arch_arg_unsafe (self, arg_pos, func_name);
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arch_smob *a_smob = (arch_smob *) SCM_SMOB_DATA (a_scm);
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return a_smob;
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}
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/* Arch methods. */
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/* (current-arch) -> <gdb:arch>
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Return the architecture of the currently selected stack frame,
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if there is one, or the current target if there isn't. */
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static SCM
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gdbscm_current_arch (void)
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{
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return arscm_scm_from_arch (get_current_arch ());
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}
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/* (arch-name <gdb:arch>) -> string
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Return the name of the architecture as a string value. */
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static SCM
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gdbscm_arch_name (SCM self)
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{
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arch_smob *a_smob
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= arscm_get_arch_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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struct gdbarch *gdbarch = a_smob->gdbarch;
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const char *name;
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name = (gdbarch_bfd_arch_info (gdbarch))->printable_name;
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return gdbscm_scm_from_c_string (name);
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}
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/* (arch-charset <gdb:arch>) -> string */
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static SCM
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gdbscm_arch_charset (SCM self)
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{
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arch_smob *a_smob
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=arscm_get_arch_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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struct gdbarch *gdbarch = a_smob->gdbarch;
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return gdbscm_scm_from_c_string (target_charset (gdbarch));
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}
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/* (arch-wide-charset <gdb:arch>) -> string */
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static SCM
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gdbscm_arch_wide_charset (SCM self)
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{
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arch_smob *a_smob
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= arscm_get_arch_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
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struct gdbarch *gdbarch = a_smob->gdbarch;
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return gdbscm_scm_from_c_string (target_wide_charset (gdbarch));
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}
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/* Builtin types.
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The order the types are defined here follows the order in
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struct builtin_type. */
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/* Helper routine to return a builtin type for <gdb:arch> object SELF.
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OFFSET is offsetof (builtin_type, the_type).
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Throws an exception if SELF is not a <gdb:arch> object. */
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static const struct builtin_type *
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gdbscm_arch_builtin_type (SCM self, const char *func_name)
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{
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arch_smob *a_smob
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= arscm_get_arch_smob_arg_unsafe (self, SCM_ARG1, func_name);
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struct gdbarch *gdbarch = a_smob->gdbarch;
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return builtin_type (gdbarch);
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}
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/* (arch-void-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_void_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_void;
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return tyscm_scm_from_type (type);
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}
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/* (arch-char-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_char_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_char;
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return tyscm_scm_from_type (type);
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}
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/* (arch-short-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_short_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_short;
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return tyscm_scm_from_type (type);
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}
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/* (arch-int-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_int_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_int;
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return tyscm_scm_from_type (type);
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}
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/* (arch-long-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_long_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_long;
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return tyscm_scm_from_type (type);
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}
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/* (arch-schar-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_schar_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_signed_char;
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return tyscm_scm_from_type (type);
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}
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/* (arch-uchar-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_uchar_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_unsigned_char;
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return tyscm_scm_from_type (type);
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}
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/* (arch-ushort-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_ushort_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_unsigned_short;
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return tyscm_scm_from_type (type);
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}
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/* (arch-uint-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_uint_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_unsigned_int;
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return tyscm_scm_from_type (type);
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}
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/* (arch-ulong-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_ulong_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_unsigned_long;
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return tyscm_scm_from_type (type);
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}
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/* (arch-float-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_float_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_float;
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return tyscm_scm_from_type (type);
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}
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/* (arch-double-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_double_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_double;
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return tyscm_scm_from_type (type);
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}
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/* (arch-longdouble-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_longdouble_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_long_double;
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return tyscm_scm_from_type (type);
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}
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/* (arch-bool-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_bool_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_bool;
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return tyscm_scm_from_type (type);
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}
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/* (arch-longlong-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_longlong_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_long_long;
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return tyscm_scm_from_type (type);
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}
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/* (arch-ulonglong-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_ulonglong_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_unsigned_long_long;
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return tyscm_scm_from_type (type);
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}
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/* (arch-int8-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_int8_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_int8;
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return tyscm_scm_from_type (type);
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}
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/* (arch-uint8-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_uint8_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_uint8;
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return tyscm_scm_from_type (type);
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}
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/* (arch-int16-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_int16_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_int16;
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return tyscm_scm_from_type (type);
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}
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/* (arch-uint16-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_uint16_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_uint16;
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return tyscm_scm_from_type (type);
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}
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/* (arch-int32-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_int32_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_int32;
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return tyscm_scm_from_type (type);
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}
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/* (arch-uint32-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_uint32_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_uint32;
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return tyscm_scm_from_type (type);
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}
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/* (arch-int64-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_int64_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_int64;
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return tyscm_scm_from_type (type);
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}
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/* (arch-uint64-type <gdb:arch>) -> <gdb:type> */
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static SCM
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gdbscm_arch_uint64_type (SCM self)
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{
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struct type *type
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= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_uint64;
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return tyscm_scm_from_type (type);
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}
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/* Initialize the Scheme architecture support. */
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static const scheme_function arch_functions[] =
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{
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{ "arch?", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_p),
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"\
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Return #t if the object is a <gdb:arch> object." },
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{ "current-arch", 0, 0, 0, as_a_scm_t_subr (gdbscm_current_arch),
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"\
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Return the <gdb:arch> object representing the architecture of the\n\
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currently selected stack frame, if there is one, or the architecture of the\n\
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current target if there isn't.\n\
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\n\
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Arguments: none" },
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{ "arch-name", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_name),
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"\
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Return the name of the architecture." },
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{ "arch-charset", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_charset),
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"\
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Return name of target character set as a string." },
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{ "arch-wide-charset", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_wide_charset),
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"\
|
||
Return name of target wide character set as a string." },
|
||
|
||
{ "arch-void-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_void_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"void\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-char-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_char_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"char\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-short-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_short_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"short\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-int-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_int_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"int\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-long-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_long_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"long\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-schar-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_schar_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"signed char\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-uchar-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_uchar_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"unsigned char\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-ushort-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_ushort_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"unsigned short\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-uint-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_uint_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"unsigned int\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-ulong-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_ulong_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"unsigned long\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-float-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_float_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"float\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-double-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_double_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"double\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-longdouble-type", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_arch_longdouble_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"long double\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-bool-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_bool_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"bool\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-longlong-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_longlong_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"long long\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-ulonglong-type", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_arch_ulonglong_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"unsigned long long\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-int8-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_int8_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"int8\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-uint8-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_uint8_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"uint8\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-int16-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_int16_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"int16\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-uint16-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_uint16_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"uint16\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-int32-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_int32_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"int32\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-uint32-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_uint32_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"uint32\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-int64-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_int64_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"int64\" type\n\
|
||
of the architecture." },
|
||
|
||
{ "arch-uint64-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_arch_uint64_type),
|
||
"\
|
||
Return the <gdb:type> object for the \"uint64\" type\n\
|
||
of the architecture." },
|
||
|
||
END_FUNCTIONS
|
||
};
|
||
|
||
void
|
||
gdbscm_initialize_arches (void)
|
||
{
|
||
arch_smob_tag = gdbscm_make_smob_type (arch_smob_name, sizeof (arch_smob));
|
||
scm_set_smob_print (arch_smob_tag, arscm_print_arch_smob);
|
||
|
||
gdbscm_define_functions (arch_functions, 1);
|
||
|
||
arch_object_data
|
||
= gdbarch_data_register_post_init (arscm_object_data_init);
|
||
}
|