mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-30 21:44:19 +08:00
418 lines
10 KiB
C
418 lines
10 KiB
C
/* Routines for handling XML generic OS data provided by target.
|
|
|
|
Copyright (C) 2008-2016 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 "target.h"
|
|
#include "vec.h"
|
|
#include "xml-support.h"
|
|
#include "osdata.h"
|
|
#include "ui-out.h"
|
|
#include "gdbcmd.h"
|
|
|
|
#if !defined(HAVE_LIBEXPAT)
|
|
|
|
struct osdata *
|
|
osdata_parse (const char *xml)
|
|
{
|
|
static int have_warned;
|
|
|
|
if (!have_warned)
|
|
{
|
|
have_warned = 1;
|
|
warning (_("Can not parse XML OS data; XML support was disabled "
|
|
"at compile time"));
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
#else /* HAVE_LIBEXPAT */
|
|
|
|
/* Internal parsing data passed to all XML callbacks. */
|
|
struct osdata_parsing_data
|
|
{
|
|
struct osdata *osdata;
|
|
char *property_name;
|
|
};
|
|
|
|
/* Handle the start of a <osdata> element. */
|
|
|
|
static void
|
|
osdata_start_osdata (struct gdb_xml_parser *parser,
|
|
const struct gdb_xml_element *element,
|
|
void *user_data, VEC(gdb_xml_value_s) *attributes)
|
|
{
|
|
struct osdata_parsing_data *data = (struct osdata_parsing_data *) user_data;
|
|
char *type;
|
|
struct osdata *osdata;
|
|
|
|
if (data->osdata)
|
|
gdb_xml_error (parser, _("Seen more than on osdata element"));
|
|
|
|
type = (char *) xml_find_attribute (attributes, "type")->value;
|
|
osdata = XCNEW (struct osdata);
|
|
osdata->type = xstrdup (type);
|
|
data->osdata = osdata;
|
|
}
|
|
|
|
/* Handle the start of a <item> element. */
|
|
|
|
static void
|
|
osdata_start_item (struct gdb_xml_parser *parser,
|
|
const struct gdb_xml_element *element,
|
|
void *user_data, VEC(gdb_xml_value_s) *attributes)
|
|
{
|
|
struct osdata_parsing_data *data = (struct osdata_parsing_data *) user_data;
|
|
struct osdata_item item = { NULL };
|
|
|
|
VEC_safe_push (osdata_item_s, data->osdata->items, &item);
|
|
}
|
|
|
|
/* Handle the start of a <column> element. */
|
|
|
|
static void
|
|
osdata_start_column (struct gdb_xml_parser *parser,
|
|
const struct gdb_xml_element *element,
|
|
void *user_data, VEC(gdb_xml_value_s) *attributes)
|
|
{
|
|
struct osdata_parsing_data *data = (struct osdata_parsing_data *) user_data;
|
|
const char *name
|
|
= (const char *) xml_find_attribute (attributes, "name")->value;
|
|
|
|
data->property_name = xstrdup (name);
|
|
}
|
|
|
|
/* Handle the end of a <column> element. */
|
|
|
|
static void
|
|
osdata_end_column (struct gdb_xml_parser *parser,
|
|
const struct gdb_xml_element *element,
|
|
void *user_data, const char *body_text)
|
|
{
|
|
struct osdata_parsing_data *data = (struct osdata_parsing_data *) user_data;
|
|
struct osdata *osdata = data->osdata;
|
|
struct osdata_item *item = VEC_last (osdata_item_s, osdata->items);
|
|
struct osdata_column *col = VEC_safe_push (osdata_column_s,
|
|
item->columns, NULL);
|
|
|
|
/* Transfer memory ownership. NAME was already strdup'ed. */
|
|
col->name = data->property_name;
|
|
col->value = xstrdup (body_text);
|
|
data->property_name = NULL;
|
|
}
|
|
|
|
/* Discard the constructed osdata (if an error occurs). */
|
|
|
|
static void
|
|
clear_parsing_data (void *p)
|
|
{
|
|
struct osdata_parsing_data *data = (struct osdata_parsing_data *) p;
|
|
|
|
osdata_free (data->osdata);
|
|
data->osdata = NULL;
|
|
xfree (data->property_name);
|
|
data->property_name = NULL;
|
|
}
|
|
|
|
/* The allowed elements and attributes for OS data object.
|
|
The root element is a <osdata>. */
|
|
|
|
const struct gdb_xml_attribute column_attributes[] = {
|
|
{ "name", GDB_XML_AF_NONE, NULL, NULL },
|
|
{ NULL, GDB_XML_AF_NONE, NULL, NULL }
|
|
};
|
|
|
|
const struct gdb_xml_element item_children[] = {
|
|
{ "column", column_attributes, NULL,
|
|
GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
|
|
osdata_start_column, osdata_end_column },
|
|
{ NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
|
|
};
|
|
|
|
const struct gdb_xml_attribute osdata_attributes[] = {
|
|
{ "type", GDB_XML_AF_NONE, NULL, NULL },
|
|
{ NULL, GDB_XML_AF_NONE, NULL, NULL }
|
|
};
|
|
|
|
const struct gdb_xml_element osdata_children[] = {
|
|
{ "item", NULL, item_children,
|
|
GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
|
|
osdata_start_item, NULL },
|
|
{ NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
|
|
};
|
|
|
|
const struct gdb_xml_element osdata_elements[] = {
|
|
{ "osdata", osdata_attributes, osdata_children,
|
|
GDB_XML_EF_NONE, osdata_start_osdata, NULL },
|
|
{ NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
|
|
};
|
|
|
|
struct osdata *
|
|
osdata_parse (const char *xml)
|
|
{
|
|
struct cleanup *back_to;
|
|
struct osdata_parsing_data data = { NULL };
|
|
|
|
back_to = make_cleanup (clear_parsing_data, &data);
|
|
|
|
if (gdb_xml_parse_quick (_("osdata"), "osdata.dtd",
|
|
osdata_elements, xml, &data) == 0)
|
|
{
|
|
/* Parsed successfully, don't need to delete the result. */
|
|
discard_cleanups (back_to);
|
|
return data.osdata;
|
|
}
|
|
|
|
do_cleanups (back_to);
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
osdata_item_clear (struct osdata_item *item)
|
|
{
|
|
if (item->columns != NULL)
|
|
{
|
|
struct osdata_column *col;
|
|
int ix;
|
|
|
|
for (ix = 0;
|
|
VEC_iterate (osdata_column_s, item->columns,
|
|
ix, col);
|
|
ix++)
|
|
{
|
|
xfree (col->name);
|
|
xfree (col->value);
|
|
}
|
|
VEC_free (osdata_column_s, item->columns);
|
|
item->columns = NULL;
|
|
}
|
|
}
|
|
|
|
void
|
|
osdata_free (struct osdata *osdata)
|
|
{
|
|
if (osdata == NULL)
|
|
return;
|
|
|
|
if (osdata->items != NULL)
|
|
{
|
|
struct osdata_item *item;
|
|
int ix;
|
|
|
|
for (ix = 0;
|
|
VEC_iterate (osdata_item_s, osdata->items,
|
|
ix, item);
|
|
ix++)
|
|
osdata_item_clear (item);
|
|
VEC_free (osdata_item_s, osdata->items);
|
|
}
|
|
|
|
xfree (osdata);
|
|
}
|
|
|
|
static void
|
|
osdata_free_cleanup (void *arg)
|
|
{
|
|
struct osdata *osdata = (struct osdata *) arg;
|
|
|
|
osdata_free (osdata);
|
|
}
|
|
|
|
struct cleanup *
|
|
make_cleanup_osdata_free (struct osdata *data)
|
|
{
|
|
return make_cleanup (osdata_free_cleanup, data);
|
|
}
|
|
|
|
struct osdata *
|
|
get_osdata (const char *type)
|
|
{
|
|
struct osdata *osdata = NULL;
|
|
char *xml = target_get_osdata (type);
|
|
|
|
if (xml)
|
|
{
|
|
struct cleanup *old_chain = make_cleanup (xfree, xml);
|
|
|
|
if (xml[0] == '\0')
|
|
{
|
|
if (type)
|
|
warning (_("Empty data returned by target. Wrong osdata type?"));
|
|
else
|
|
warning (_("Empty type list returned by target. No type data?"));
|
|
}
|
|
else
|
|
osdata = osdata_parse (xml);
|
|
|
|
do_cleanups (old_chain);
|
|
}
|
|
|
|
if (!osdata)
|
|
error (_("Can not fetch data now."));
|
|
|
|
return osdata;
|
|
}
|
|
|
|
const char *
|
|
get_osdata_column (struct osdata_item *item, const char *name)
|
|
{
|
|
struct osdata_column *col;
|
|
int ix_cols;
|
|
|
|
for (ix_cols = 0;
|
|
VEC_iterate (osdata_column_s, item->columns,
|
|
ix_cols, col);
|
|
ix_cols++)
|
|
if (strcmp (col->name, name) == 0)
|
|
return col->value;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
info_osdata_command (char *type, int from_tty)
|
|
{
|
|
struct ui_out *uiout = current_uiout;
|
|
struct osdata *osdata = NULL;
|
|
struct osdata_item *last = NULL;
|
|
struct cleanup *old_chain;
|
|
int ncols = 0;
|
|
int nrows;
|
|
int col_to_skip = -1;
|
|
|
|
osdata = get_osdata (type);
|
|
old_chain = make_cleanup_osdata_free (osdata);
|
|
|
|
nrows = VEC_length (osdata_item_s, osdata->items);
|
|
|
|
if (!type && nrows == 0)
|
|
error (_("Available types of OS data not reported."));
|
|
|
|
if (!VEC_empty (osdata_item_s, osdata->items))
|
|
{
|
|
last = VEC_last (osdata_item_s, osdata->items);
|
|
if (last->columns)
|
|
ncols = VEC_length (osdata_column_s, last->columns);
|
|
|
|
/* As a special case, scan the listing of available data types
|
|
for a column named "Title", and only include it with MI
|
|
output; this column's normal use is for titles for interface
|
|
elements like menus, and it clutters up CLI output. */
|
|
if (!type && !ui_out_is_mi_like_p (uiout))
|
|
{
|
|
struct osdata_column *col;
|
|
int ix;
|
|
|
|
for (ix = 0;
|
|
VEC_iterate (osdata_column_s, last->columns, ix, col);
|
|
ix++)
|
|
{
|
|
if (strcmp (col->name, "Title") == 0)
|
|
col_to_skip = ix;
|
|
}
|
|
/* Be sure to reduce the total column count, otherwise
|
|
internal errors ensue. */
|
|
if (col_to_skip >= 0)
|
|
--ncols;
|
|
}
|
|
}
|
|
|
|
make_cleanup_ui_out_table_begin_end (uiout, ncols, nrows,
|
|
"OSDataTable");
|
|
|
|
/* With no columns/items, we just output an empty table, but we
|
|
still output the table. This matters for MI. */
|
|
if (ncols == 0)
|
|
{
|
|
do_cleanups (old_chain);
|
|
return;
|
|
}
|
|
|
|
if (last && last->columns)
|
|
{
|
|
struct osdata_column *col;
|
|
int ix;
|
|
|
|
for (ix = 0;
|
|
VEC_iterate (osdata_column_s, last->columns,
|
|
ix, col);
|
|
ix++)
|
|
{
|
|
char col_name[32];
|
|
|
|
if (ix == col_to_skip)
|
|
continue;
|
|
|
|
snprintf (col_name, 32, "col%d", ix);
|
|
ui_out_table_header (uiout, 10, ui_left,
|
|
col_name, col->name);
|
|
}
|
|
}
|
|
|
|
ui_out_table_body (uiout);
|
|
|
|
if (nrows != 0)
|
|
{
|
|
struct osdata_item *item;
|
|
int ix_items;
|
|
|
|
for (ix_items = 0;
|
|
VEC_iterate (osdata_item_s, osdata->items,
|
|
ix_items, item);
|
|
ix_items++)
|
|
{
|
|
struct cleanup *old_chain;
|
|
int ix_cols;
|
|
struct osdata_column *col;
|
|
|
|
old_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "item");
|
|
|
|
for (ix_cols = 0;
|
|
VEC_iterate (osdata_column_s, item->columns,
|
|
ix_cols, col);
|
|
ix_cols++)
|
|
{
|
|
char col_name[32];
|
|
|
|
if (ix_cols == col_to_skip)
|
|
continue;
|
|
|
|
snprintf (col_name, 32, "col%d", ix_cols);
|
|
ui_out_field_string (uiout, col_name, col->value);
|
|
}
|
|
|
|
do_cleanups (old_chain);
|
|
|
|
ui_out_text (uiout, "\n");
|
|
}
|
|
}
|
|
|
|
do_cleanups (old_chain);
|
|
}
|
|
|
|
extern initialize_file_ftype _initialize_osdata; /* -Wmissing-prototypes */
|
|
|
|
void
|
|
_initialize_osdata (void)
|
|
{
|
|
add_info ("os", info_osdata_command,
|
|
_("Show OS data ARG."));
|
|
}
|