mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
bd63c87008
gdb/ChangeLog: * gdbtypes.h (TYPE_VECTOR): Remove, replace all uses with type::is_vector. Change-Id: I1ac28755af44b1585c190553f9961288c8fb9137
346 lines
8.6 KiB
C
346 lines
8.6 KiB
C
/* Register groupings for GDB, the GNU debugger.
|
|
|
|
Copyright (C) 2002-2020 Free Software Foundation, Inc.
|
|
|
|
Contributed by Red Hat.
|
|
|
|
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 "arch-utils.h"
|
|
#include "reggroups.h"
|
|
#include "gdbtypes.h"
|
|
#include "regcache.h"
|
|
#include "command.h"
|
|
#include "gdbcmd.h" /* For maintenanceprintlist. */
|
|
#include "gdb_obstack.h"
|
|
|
|
/* Individual register groups. */
|
|
|
|
struct reggroup
|
|
{
|
|
const char *name;
|
|
enum reggroup_type type;
|
|
};
|
|
|
|
struct reggroup *
|
|
reggroup_new (const char *name, enum reggroup_type type)
|
|
{
|
|
struct reggroup *group = XNEW (struct reggroup);
|
|
|
|
group->name = name;
|
|
group->type = type;
|
|
return group;
|
|
}
|
|
|
|
/* See reggroups.h. */
|
|
|
|
struct reggroup *
|
|
reggroup_gdbarch_new (struct gdbarch *gdbarch, const char *name,
|
|
enum reggroup_type type)
|
|
{
|
|
struct reggroup *group = GDBARCH_OBSTACK_ZALLOC (gdbarch,
|
|
struct reggroup);
|
|
|
|
group->name = gdbarch_obstack_strdup (gdbarch, name);
|
|
group->type = type;
|
|
return group;
|
|
}
|
|
|
|
/* Register group attributes. */
|
|
|
|
const char *
|
|
reggroup_name (struct reggroup *group)
|
|
{
|
|
return group->name;
|
|
}
|
|
|
|
enum reggroup_type
|
|
reggroup_type (struct reggroup *group)
|
|
{
|
|
return group->type;
|
|
}
|
|
|
|
/* A linked list of groups for the given architecture. */
|
|
|
|
struct reggroup_el
|
|
{
|
|
struct reggroup *group;
|
|
struct reggroup_el *next;
|
|
};
|
|
|
|
struct reggroups
|
|
{
|
|
struct reggroup_el *first;
|
|
struct reggroup_el **last;
|
|
};
|
|
|
|
static struct gdbarch_data *reggroups_data;
|
|
|
|
static void *
|
|
reggroups_init (struct obstack *obstack)
|
|
{
|
|
struct reggroups *groups = OBSTACK_ZALLOC (obstack, struct reggroups);
|
|
|
|
groups->last = &groups->first;
|
|
return groups;
|
|
}
|
|
|
|
/* Add a register group (with attribute values) to the pre-defined
|
|
list. */
|
|
|
|
static void
|
|
add_group (struct reggroups *groups, struct reggroup *group,
|
|
struct reggroup_el *el)
|
|
{
|
|
gdb_assert (group != NULL);
|
|
el->group = group;
|
|
el->next = NULL;
|
|
(*groups->last) = el;
|
|
groups->last = &el->next;
|
|
}
|
|
|
|
void
|
|
reggroup_add (struct gdbarch *gdbarch, struct reggroup *group)
|
|
{
|
|
struct reggroups *groups
|
|
= (struct reggroups *) gdbarch_data (gdbarch, reggroups_data);
|
|
|
|
add_group (groups, group,
|
|
GDBARCH_OBSTACK_ZALLOC (gdbarch, struct reggroup_el));
|
|
}
|
|
|
|
/* The default register groups for an architecture. */
|
|
|
|
static struct reggroups default_groups = { NULL, &default_groups.first };
|
|
|
|
/* A register group iterator. */
|
|
|
|
struct reggroup *
|
|
reggroup_next (struct gdbarch *gdbarch, struct reggroup *last)
|
|
{
|
|
struct reggroups *groups;
|
|
struct reggroup_el *el;
|
|
|
|
/* Don't allow this function to be called during architecture
|
|
creation. If there are no groups, use the default groups list. */
|
|
groups = (struct reggroups *) gdbarch_data (gdbarch, reggroups_data);
|
|
gdb_assert (groups != NULL);
|
|
if (groups->first == NULL)
|
|
groups = &default_groups;
|
|
|
|
/* Return the first/next reggroup. */
|
|
if (last == NULL)
|
|
return groups->first->group;
|
|
for (el = groups->first; el != NULL; el = el->next)
|
|
{
|
|
if (el->group == last)
|
|
{
|
|
if (el->next != NULL)
|
|
return el->next->group;
|
|
else
|
|
return NULL;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* See reggroups.h. */
|
|
|
|
struct reggroup *
|
|
reggroup_prev (struct gdbarch *gdbarch, struct reggroup *curr)
|
|
{
|
|
struct reggroups *groups;
|
|
struct reggroup_el *el;
|
|
struct reggroup *prev;
|
|
|
|
/* Don't allow this function to be called during architecture
|
|
creation. If there are no groups, use the default groups list. */
|
|
groups = (struct reggroups *) gdbarch_data (gdbarch, reggroups_data);
|
|
gdb_assert (groups != NULL);
|
|
if (groups->first == NULL)
|
|
groups = &default_groups;
|
|
|
|
prev = NULL;
|
|
for (el = groups->first; el != NULL; el = el->next)
|
|
{
|
|
gdb_assert (el->group != NULL);
|
|
if (el->group == curr)
|
|
return prev;
|
|
prev = el->group;
|
|
}
|
|
if (curr == NULL)
|
|
return prev;
|
|
return NULL;
|
|
}
|
|
|
|
/* Is REGNUM a member of REGGROUP? */
|
|
int
|
|
default_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
|
|
struct reggroup *group)
|
|
{
|
|
int vector_p;
|
|
int float_p;
|
|
int raw_p;
|
|
|
|
if (gdbarch_register_name (gdbarch, regnum) == NULL
|
|
|| *gdbarch_register_name (gdbarch, regnum) == '\0')
|
|
return 0;
|
|
if (group == all_reggroup)
|
|
return 1;
|
|
vector_p = register_type (gdbarch, regnum)->is_vector ();
|
|
float_p = (register_type (gdbarch, regnum)->code () == TYPE_CODE_FLT
|
|
|| (register_type (gdbarch, regnum)->code ()
|
|
== TYPE_CODE_DECFLOAT));
|
|
raw_p = regnum < gdbarch_num_regs (gdbarch);
|
|
if (group == float_reggroup)
|
|
return float_p;
|
|
if (group == vector_reggroup)
|
|
return vector_p;
|
|
if (group == general_reggroup)
|
|
return (!vector_p && !float_p);
|
|
if (group == save_reggroup || group == restore_reggroup)
|
|
return raw_p;
|
|
return 0;
|
|
}
|
|
|
|
/* See reggroups.h. */
|
|
|
|
reggroup *
|
|
reggroup_find (struct gdbarch *gdbarch, const char *name)
|
|
{
|
|
struct reggroup *group;
|
|
|
|
for (group = reggroup_next (gdbarch, NULL);
|
|
group != NULL;
|
|
group = reggroup_next (gdbarch, group))
|
|
{
|
|
if (strcmp (name, reggroup_name (group)) == 0)
|
|
return group;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* Dump out a table of register groups for the current architecture. */
|
|
|
|
static void
|
|
reggroups_dump (struct gdbarch *gdbarch, struct ui_file *file)
|
|
{
|
|
struct reggroup *group = NULL;
|
|
|
|
do
|
|
{
|
|
/* Group name. */
|
|
{
|
|
const char *name;
|
|
|
|
if (group == NULL)
|
|
name = "Group";
|
|
else
|
|
name = reggroup_name (group);
|
|
fprintf_unfiltered (file, " %-10s", name);
|
|
}
|
|
|
|
/* Group type. */
|
|
{
|
|
const char *type;
|
|
|
|
if (group == NULL)
|
|
type = "Type";
|
|
else
|
|
{
|
|
switch (reggroup_type (group))
|
|
{
|
|
case USER_REGGROUP:
|
|
type = "user";
|
|
break;
|
|
case INTERNAL_REGGROUP:
|
|
type = "internal";
|
|
break;
|
|
default:
|
|
internal_error (__FILE__, __LINE__, _("bad switch"));
|
|
}
|
|
}
|
|
fprintf_unfiltered (file, " %-10s", type);
|
|
}
|
|
|
|
/* Note: If you change this, be sure to also update the
|
|
documentation. */
|
|
|
|
fprintf_unfiltered (file, "\n");
|
|
|
|
group = reggroup_next (gdbarch, group);
|
|
}
|
|
while (group != NULL);
|
|
}
|
|
|
|
static void
|
|
maintenance_print_reggroups (const char *args, int from_tty)
|
|
{
|
|
struct gdbarch *gdbarch = get_current_arch ();
|
|
|
|
if (args == NULL)
|
|
reggroups_dump (gdbarch, gdb_stdout);
|
|
else
|
|
{
|
|
stdio_file file;
|
|
|
|
if (!file.open (args, "w"))
|
|
perror_with_name (_("maintenance print reggroups"));
|
|
reggroups_dump (gdbarch, &file);
|
|
}
|
|
}
|
|
|
|
/* Pre-defined register groups. */
|
|
static struct reggroup general_group = { "general", USER_REGGROUP };
|
|
static struct reggroup float_group = { "float", USER_REGGROUP };
|
|
static struct reggroup system_group = { "system", USER_REGGROUP };
|
|
static struct reggroup vector_group = { "vector", USER_REGGROUP };
|
|
static struct reggroup all_group = { "all", USER_REGGROUP };
|
|
static struct reggroup save_group = { "save", INTERNAL_REGGROUP };
|
|
static struct reggroup restore_group = { "restore", INTERNAL_REGGROUP };
|
|
|
|
struct reggroup *const general_reggroup = &general_group;
|
|
struct reggroup *const float_reggroup = &float_group;
|
|
struct reggroup *const system_reggroup = &system_group;
|
|
struct reggroup *const vector_reggroup = &vector_group;
|
|
struct reggroup *const all_reggroup = &all_group;
|
|
struct reggroup *const save_reggroup = &save_group;
|
|
struct reggroup *const restore_reggroup = &restore_group;
|
|
|
|
void _initialize_reggroup ();
|
|
void
|
|
_initialize_reggroup ()
|
|
{
|
|
reggroups_data = gdbarch_data_register_pre_init (reggroups_init);
|
|
|
|
/* The pre-defined list of groups. */
|
|
add_group (&default_groups, general_reggroup, XNEW (struct reggroup_el));
|
|
add_group (&default_groups, float_reggroup, XNEW (struct reggroup_el));
|
|
add_group (&default_groups, system_reggroup, XNEW (struct reggroup_el));
|
|
add_group (&default_groups, vector_reggroup, XNEW (struct reggroup_el));
|
|
add_group (&default_groups, all_reggroup, XNEW (struct reggroup_el));
|
|
add_group (&default_groups, save_reggroup, XNEW (struct reggroup_el));
|
|
add_group (&default_groups, restore_reggroup, XNEW (struct reggroup_el));
|
|
|
|
add_cmd ("reggroups", class_maintenance,
|
|
maintenance_print_reggroups, _("\
|
|
Print the internal register group names.\n\
|
|
Takes an optional file parameter."),
|
|
&maintenanceprintlist);
|
|
|
|
}
|