binutils-gdb/gdb/osdata.c

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/* Routines for handling XML generic OS data provided by target.
Copyright (C) 2008, 2009 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 "gdb_string.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 */
#include "xml-support.h"
/* 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 = user_data;
char *type;
struct osdata *osdata;
if (data->osdata)
gdb_xml_error (parser, _("Seen more than on osdata element"));
type = VEC_index (gdb_xml_value_s, attributes, 0)->value;
osdata = XZALLOC (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 = 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 = user_data;
const char *name = VEC_index (gdb_xml_value_s, attributes, 0)->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 = 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 = 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 gdb_xml_parser *parser;
struct cleanup *before_deleting_result, *back_to;
struct osdata_parsing_data data = { NULL };
back_to = make_cleanup (null_cleanup, NULL);
parser = gdb_xml_create_parser_and_cleanup (_("osdata"),
osdata_elements, &data);
gdb_xml_use_dtd (parser, "osdata.dtd");
before_deleting_result = make_cleanup (clear_parsing_data, &data);
if (gdb_xml_parse (parser, xml) == 0)
/* Parsed successfully, don't need to delete the result. */
discard_cleanups (before_deleting_result);
do_cleanups (back_to);
return data.osdata;
}
#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 = 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')
warning (_("Empty data returned by target. Wrong osdata type?"));
else
osdata = osdata_parse (xml);
do_cleanups (old_chain);
}
if (!osdata)
error (_("Can not fetch data now.\n"));
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;
}
2008-02-21 Pedro Alves <pedro@codesorcery.com> Silence a few -Wmissing-prototypes warnings. PR build/9877: * amd64-nat.c: Include "amd64-nat.h". * fork-child.c (_initialize_fork_child): Ditto. * gcore.c (_initialize_gcore): Ditto. * inf-ptrace.c: Include "inf-ptrace.h". (inf_ptrace_store_registers): Make it static. * linux-nat.c (linux_nat_terminal_ours): Make it static. (_initialize_linux_nat): Declare before definition. * linux-tdep.c: Include "linux-tdep.h". * linux-thread-db.c (_initialize_thread_db): Declare before definition. * proc-service.c (_initialize_proc_service): Ditto. * remote.c (remote_send_printf): Make it static. * solib.c: Include "solib.h". * symfile-mem.c (_initialize_symfile_mem): Declare before definition. * ada-lang.c (ada_la_decode, ada_match_name) (ada_suppress_symbol_printing, ada_is_array_type) (ada_value_ptr_subscript, ada_array_length) (ada_to_static_fixed_value): Make them static. (_initialize_ada_language): Declare before definition. * ada-tasks.c (ada_get_task_number, ada_get_environment_task) (ada_task_list_changed, ada_new_objfile_observer): Make them static. (_initialize_tasks): Declare before definition. * addrmap.c (_initialize_addrmap): Declare before definition. * auxv.c (default_auxv_parse): Make it static. * bfd-target.c (target_bfd_xfer_partial, target_bfd_xclose): Make them static. * breakpoint.c (remove_sal): Add line break. (expand_line_sal_maybe): Make it static. * cp-name-parser.y: Include "cp-support.h". * cp-valprint.c (cp_find_class_member): Make it static. * eval.c (value_f90_subarray): Ditto. * exceptions.c (print_any_exception): Ditto. * findcmd.c (_initialize_mem_search): Declare before definition. * frame.c (frame_observer_target_changed): Make it static. * gnu-v3-abi.c (gnuv3_find_method_in): Make it static. * inf-child.c: Include "inf-child.h". * inferior.h (valid_inferior_id): Rename to ... (valid_gdb_inferior_id): ... this. * infrun.c (infrun_thread_stop_requested, siginfo_make_value): Make them static. * jv-lang.c (java_language_arch_info): Make it static. * m2-typeprint.c (m2_get_discrete_bounds): Ditto. * osdata.c (info_osdata_command): Make it static. * regcache.c (regcache_observer_target_changed): Make it static. * reverse.c (_initialize_reverse): Declare before definition. * stabsread.c (cleanup_undefined_types_noname) (cleanup_undefined_types_1): Make them static. * symfile.c (place_section): Make it static. * symtab.c (find_pc_sect_psymtab_closer): Make it static. * target-descriptions.c (_initialize_target_descriptions): Declare before definition. * target.c (default_get_ada_task_ptid, find_default_can_async_p) (find_default_is_async_p, find_default_supports_non_stop): Make them static. (target_supports_non_stop): Add prototype. (dummy_pid_to_str): Make it static. * utils.c (_initialize_utils): Declare before definition. * ada-exp.y (_initialize_ada_exp): Declare before definition. * solib-svr4.c (HAS_LM_DYNAMIC_FROM_LINK_MAP): Add a prototype. * target.h (struct target_ops): Add a prototype to the to_can_execute_reverse callback. * macroscope.c (_initialize_macroscope): Declare before definition. * cp-namespace.c (_initialize_cp_namespace): Declare before definition. * python/python.c (_initialize_python): Declare before definition. * tui/tui-command.c: Include "tui/tui-command.h". * tui/tui-data.c (init_content_element, init_win_info): Make them static. * tui/tui-disasm.c: Include "tui/tui-disasm.h". * tui/tui-interp.c (_initialize_tui_interp): Declare before definition. * tui/tui-layout.c: Include "tui/tui-layout.h". (_initialize_tui_layout): Declare before definition. * tui/tui-regs.c: Include "tui/tui-regs.h". (tui_display_reg_element_at_line): Make it static. (_initialize_tui_regs): Declare before definition. * tui/tui-stack.c (_initialize_tui_stack): Declare before definition. * tui/tui-win.c: Include "tui/tui-win.h". (_initialize_tui_win): Declare before definition. (tui_sigwinch_handler): Make it static. Wrap in ifdef SIGWINCH. * tui/tui-win.h (tui_sigwinch_handler): Delete declaration. (tui_get_cmd_list): Add a prototype. * tui/tui-windata.c: Include tui-windata.h. * tui/tui-wingeneral.c (box_win): Make it static. * cli/cli-logging.c (show_logging_command): Make it static. (_initialize_cli_logging): Declare before definition. * mi/mi-common.c (_initialize_gdb_mi_common): Declare before definition.
2009-02-21 17:14:50 +01:00
static void
info_osdata_command (char *type, int from_tty)
{
struct osdata *osdata = NULL;
struct osdata_item *last;
struct cleanup *old_chain;
int ncols;
int nprocs;
if (type == 0)
/* TODO: No type could mean "list availables types". */
error (_("Argument required."));
osdata = get_osdata (type);
old_chain = make_cleanup_osdata_free (osdata);
nprocs = VEC_length (osdata_item_s, osdata->items);
last = VEC_last (osdata_item_s, osdata->items);
if (last && last->columns)
ncols = VEC_length (osdata_column_s, last->columns);
else
ncols = 0;
make_cleanup_ui_out_table_begin_end (uiout, ncols, nprocs,
"OSDataTable");
if (last && last->columns)
{
struct osdata_column *col;
int ix;
for (ix = 0;
VEC_iterate (osdata_column_s, last->columns,
ix, col);
ix++)
ui_out_table_header (uiout, 10, ui_left,
col->name, col->name);
}
ui_out_table_body (uiout);
if (nprocs != 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;
struct ui_stream *stb;
int ix_cols;
struct osdata_column *col;
stb = ui_out_stream_new (uiout);
old_chain = make_cleanup_ui_out_stream_delete (stb);
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++)
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."));
}