gdb/guile/scm-arch.c - gdb
Global variables defined
Data types defined
Functions defined
Source code
/* Scheme interface to architecture.
Copyright (C) 2014-2015 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/>. */
/* See README file in this directory for implementation notes, coding
conventions, et.al. */
#include "defs.h"
#include "charset.h"
#include "gdbarch.h"
#include "arch-utils.h"
#include "guile-internal.h"
/* The <gdb:arch> smob.
The typedef for this struct is in guile-internal.h. */
struct _arch_smob
{
/* This always appears first. */
gdb_smob base;
struct gdbarch *gdbarch;
};
static const char arch_smob_name[] = "gdb:arch";
/* The tag Guile knows the arch smob by. */
static scm_t_bits arch_smob_tag;
static struct gdbarch_data *arch_object_data = NULL;
static int arscm_is_arch (SCM);
/* Administrivia for arch smobs. */
/* The smob "print" function for <gdb:arch>. */
static int
arscm_print_arch_smob (SCM self, SCM port, scm_print_state *pstate)
{
arch_smob *a_smob = (arch_smob *) SCM_SMOB_DATA (self);
struct gdbarch *gdbarch = a_smob->gdbarch;
gdbscm_printf (port, "#<%s", arch_smob_name);
gdbscm_printf (port, " %s", gdbarch_bfd_arch_info (gdbarch)->printable_name);
scm_puts (">", port);
scm_remember_upto_here_1 (self);
/* Non-zero means success. */
return 1;
}
/* Low level routine to create a <gdb:arch> object for GDBARCH. */
static SCM
arscm_make_arch_smob (struct gdbarch *gdbarch)
{
arch_smob *a_smob = (arch_smob *)
scm_gc_malloc (sizeof (arch_smob), arch_smob_name);
SCM a_scm;
a_smob->gdbarch = gdbarch;
a_scm = scm_new_smob (arch_smob_tag, (scm_t_bits) a_smob);
gdbscm_init_gsmob (&a_smob->base);
return a_scm;
}
/* Return the gdbarch field of A_SMOB. */
struct gdbarch *
arscm_get_gdbarch (arch_smob *a_smob)
{
return a_smob->gdbarch;
}
/* Return non-zero if SCM is an architecture smob. */
static int
arscm_is_arch (SCM scm)
{
return SCM_SMOB_PREDICATE (arch_smob_tag, scm);
}
/* (arch? object) -> boolean */
static SCM
gdbscm_arch_p (SCM scm)
{
return scm_from_bool (arscm_is_arch (scm));
}
/* Associates an arch_object with GDBARCH as gdbarch_data via the gdbarch
post init registration mechanism (gdbarch_data_register_post_init). */
static void *
arscm_object_data_init (struct gdbarch *gdbarch)
{
SCM arch_scm = arscm_make_arch_smob (gdbarch);
/* This object lasts the duration of the GDB session, so there is no
call to scm_gc_unprotect_object for it. */
scm_gc_protect_object (arch_scm);
return (void *) arch_scm;
}
/* Return the <gdb:arch> object corresponding to GDBARCH.
The object is cached in GDBARCH so this is simple. */
SCM
arscm_scm_from_arch (struct gdbarch *gdbarch)
{
SCM a_scm = (SCM) gdbarch_data (gdbarch, arch_object_data);
return a_scm;
}
/* Return the <gdb:arch> smob in SELF.
Throws an exception if SELF is not a <gdb:arch> object. */
static SCM
arscm_get_arch_arg_unsafe (SCM self, int arg_pos, const char *func_name)
{
SCM_ASSERT_TYPE (arscm_is_arch (self), self, arg_pos, func_name,
arch_smob_name);
return self;
}
/* Return a pointer to the arch smob of SELF.
Throws an exception if SELF is not a <gdb:arch> object. */
arch_smob *
arscm_get_arch_smob_arg_unsafe (SCM self, int arg_pos, const char *func_name)
{
SCM a_scm = arscm_get_arch_arg_unsafe (self, arg_pos, func_name);
arch_smob *a_smob = (arch_smob *) SCM_SMOB_DATA (a_scm);
return a_smob;
}
/* Arch methods. */
/* (current-arch) -> <gdb:arch>
Return the architecture of the currently selected stack frame,
if there is one, or the current target if there isn't. */
static SCM
gdbscm_current_arch (void)
{
return arscm_scm_from_arch (get_current_arch ());
}
/* (arch-name <gdb:arch>) -> string
Return the name of the architecture as a string value. */
static SCM
gdbscm_arch_name (SCM self)
{
arch_smob *a_smob
= arscm_get_arch_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
struct gdbarch *gdbarch = a_smob->gdbarch;
const char *name;
name = (gdbarch_bfd_arch_info (gdbarch))->printable_name;
return gdbscm_scm_from_c_string (name);
}
/* (arch-charset <gdb:arch>) -> string */
static SCM
gdbscm_arch_charset (SCM self)
{
arch_smob *a_smob
=arscm_get_arch_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
struct gdbarch *gdbarch = a_smob->gdbarch;
return gdbscm_scm_from_c_string (target_charset (gdbarch));
}
/* (arch-wide-charset <gdb:arch>) -> string */
static SCM
gdbscm_arch_wide_charset (SCM self)
{
arch_smob *a_smob
= arscm_get_arch_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
struct gdbarch *gdbarch = a_smob->gdbarch;
return gdbscm_scm_from_c_string (target_wide_charset (gdbarch));
}
/* Builtin types.
The order the types are defined here follows the order in
struct builtin_type. */
/* Helper routine to return a builtin type for <gdb:arch> object SELF.
OFFSET is offsetof (builtin_type, the_type).
Throws an exception if SELF is not a <gdb:arch> object. */
static const struct builtin_type *
gdbscm_arch_builtin_type (SCM self, const char *func_name)
{
arch_smob *a_smob
= arscm_get_arch_smob_arg_unsafe (self, SCM_ARG1, func_name);
struct gdbarch *gdbarch = a_smob->gdbarch;
return builtin_type (gdbarch);
}
/* (arch-void-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_void_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_void;
return tyscm_scm_from_type (type);
}
/* (arch-char-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_char_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_char;
return tyscm_scm_from_type (type);
}
/* (arch-short-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_short_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_short;
return tyscm_scm_from_type (type);
}
/* (arch-int-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_int_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_int;
return tyscm_scm_from_type (type);
}
/* (arch-long-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_long_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_long;
return tyscm_scm_from_type (type);
}
/* (arch-schar-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_schar_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_signed_char;
return tyscm_scm_from_type (type);
}
/* (arch-uchar-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_uchar_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_unsigned_char;
return tyscm_scm_from_type (type);
}
/* (arch-ushort-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_ushort_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_unsigned_short;
return tyscm_scm_from_type (type);
}
/* (arch-uint-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_uint_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_unsigned_int;
return tyscm_scm_from_type (type);
}
/* (arch-ulong-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_ulong_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_unsigned_long;
return tyscm_scm_from_type (type);
}
/* (arch-float-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_float_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_float;
return tyscm_scm_from_type (type);
}
/* (arch-double-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_double_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_double;
return tyscm_scm_from_type (type);
}
/* (arch-longdouble-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_longdouble_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_long_double;
return tyscm_scm_from_type (type);
}
/* (arch-bool-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_bool_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_bool;
return tyscm_scm_from_type (type);
}
/* (arch-longlong-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_longlong_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_long_long;
return tyscm_scm_from_type (type);
}
/* (arch-ulonglong-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_ulonglong_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_unsigned_long_long;
return tyscm_scm_from_type (type);
}
/* (arch-int8-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_int8_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_int8;
return tyscm_scm_from_type (type);
}
/* (arch-uint8-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_uint8_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_uint8;
return tyscm_scm_from_type (type);
}
/* (arch-int16-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_int16_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_int16;
return tyscm_scm_from_type (type);
}
/* (arch-uint16-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_uint16_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_uint16;
return tyscm_scm_from_type (type);
}
/* (arch-int32-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_int32_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_int32;
return tyscm_scm_from_type (type);
}
/* (arch-uint32-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_uint32_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_uint32;
return tyscm_scm_from_type (type);
}
/* (arch-int64-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_int64_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_int64;
return tyscm_scm_from_type (type);
}
/* (arch-uint64-type <gdb:arch>) -> <gdb:type> */
static SCM
gdbscm_arch_uint64_type (SCM self)
{
struct type *type
= gdbscm_arch_builtin_type (self, FUNC_NAME)->builtin_uint64;
return tyscm_scm_from_type (type);
}
/* Initialize the Scheme architecture support. */
static const scheme_function arch_functions[] =
{
{ "arch?", 1, 0, 0, gdbscm_arch_p,
"\
Return #t if the object is a <gdb:arch> object." },
{ "current-arch", 0, 0, 0, gdbscm_current_arch,
"\
Return the <gdb:arch> object representing the architecture of the\n\
currently selected stack frame, if there is one, or the architecture of the\n\
current target if there isn't.\n\
\n\
Arguments: none" },
{ "arch-name", 1, 0, 0, gdbscm_arch_name,
"\
Return the name of the architecture." },
{ "arch-charset", 1, 0, 0, gdbscm_arch_charset,
"\
Return name of target character set as a string." },
{ "arch-wide-charset", 1, 0, 0, gdbscm_arch_wide_charset,
"\
Return name of target wide character set as a string." },
{ "arch-void-type", 1, 0, 0, gdbscm_arch_void_type,
"\
Return the <gdb:type> object for the \"void\" type\n\
of the architecture." },
{ "arch-char-type", 1, 0, 0, gdbscm_arch_char_type,
"\
Return the <gdb:type> object for the \"char\" type\n\
of the architecture." },
{ "arch-short-type", 1, 0, 0, gdbscm_arch_short_type,
"\
Return the <gdb:type> object for the \"short\" type\n\
of the architecture." },
{ "arch-int-type", 1, 0, 0, gdbscm_arch_int_type,
"\
Return the <gdb:type> object for the \"int\" type\n\
of the architecture." },
{ "arch-long-type", 1, 0, 0, gdbscm_arch_long_type,
"\
Return the <gdb:type> object for the \"long\" type\n\
of the architecture." },
{ "arch-schar-type", 1, 0, 0, gdbscm_arch_schar_type,
"\
Return the <gdb:type> object for the \"signed char\" type\n\
of the architecture." },
{ "arch-uchar-type", 1, 0, 0, gdbscm_arch_uchar_type,
"\
Return the <gdb:type> object for the \"unsigned char\" type\n\
of the architecture." },
{ "arch-ushort-type", 1, 0, 0, gdbscm_arch_ushort_type,
"\
Return the <gdb:type> object for the \"unsigned short\" type\n\
of the architecture." },
{ "arch-uint-type", 1, 0, 0, gdbscm_arch_uint_type,
"\
Return the <gdb:type> object for the \"unsigned int\" type\n\
of the architecture." },
{ "arch-ulong-type", 1, 0, 0, gdbscm_arch_ulong_type,
"\
Return the <gdb:type> object for the \"unsigned long\" type\n\
of the architecture." },
{ "arch-float-type", 1, 0, 0, gdbscm_arch_float_type,
"\
Return the <gdb:type> object for the \"float\" type\n\
of the architecture." },
{ "arch-double-type", 1, 0, 0, gdbscm_arch_double_type,
"\
Return the <gdb:type> object for the \"double\" type\n\
of the architecture." },
{ "arch-longdouble-type", 1, 0, 0, gdbscm_arch_longdouble_type,
"\
Return the <gdb:type> object for the \"long double\" type\n\
of the architecture." },
{ "arch-bool-type", 1, 0, 0, gdbscm_arch_bool_type,
"\
Return the <gdb:type> object for the \"bool\" type\n\
of the architecture." },
{ "arch-longlong-type", 1, 0, 0, gdbscm_arch_longlong_type,
"\
Return the <gdb:type> object for the \"long long\" type\n\
of the architecture." },
{ "arch-ulonglong-type", 1, 0, 0,
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, gdbscm_arch_int8_type,
"\
Return the <gdb:type> object for the \"int8\" type\n\
of the architecture." },
{ "arch-uint8-type", 1, 0, 0, gdbscm_arch_uint8_type,
"\
Return the <gdb:type> object for the \"uint8\" type\n\
of the architecture." },
{ "arch-int16-type", 1, 0, 0, gdbscm_arch_int16_type,
"\
Return the <gdb:type> object for the \"int16\" type\n\
of the architecture." },
{ "arch-uint16-type", 1, 0, 0, gdbscm_arch_uint16_type,
"\
Return the <gdb:type> object for the \"uint16\" type\n\
of the architecture." },
{ "arch-int32-type", 1, 0, 0, gdbscm_arch_int32_type,
"\
Return the <gdb:type> object for the \"int32\" type\n\
of the architecture." },
{ "arch-uint32-type", 1, 0, 0, gdbscm_arch_uint32_type,
"\
Return the <gdb:type> object for the \"uint32\" type\n\
of the architecture." },
{ "arch-int64-type", 1, 0, 0, gdbscm_arch_int64_type,
"\
Return the <gdb:type> object for the \"int64\" type\n\
of the architecture." },
{ "arch-uint64-type", 1, 0, 0, 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);
}