binutils-gdb/gdb/tui/tui-out.c
Tom Tromey 7f6aba03b9 Introduce metadata style
This introduces a new "metadata" style and changes many places in gdb
to use it.  The idea here is to let the user distinguish gdb output
from output that (conceptually at least) comes directly from the
inferior.  The newly-styled category includes text that gdb
traditionally surrounds in "<...>", like "<unavailable>".

I only added a single test for this.  In many cases this output is
difficult to test.  Also, while developing this errors in the
implementation of the new printf formats showed up as regressions.

gdb/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* p-lang.c (pascal_printstr): Use metadata style.
	* value.c (show_convenience): Use metadata style.
	* valprint.c (valprint_check_validity, val_print_optimized_out)
	(val_print_not_saved, val_print_unavailable)
	(val_print_invalid_address, generic_val_print, val_print)
	(value_check_printable, val_print_array_elements): Use metadata
	style.
	* ui-out.h (class ui_out) <field_fmt>: New overload.
	<do_field_fmt>: Add style parameter.
	* ui-out.c (ui_out::field_fmt): New overload.
	* typeprint.c (type_print_unknown_return_type)
	(val_print_not_allocated, val_print_not_associated): Use metadata
	style.
	* tui/tui-out.h (class tui_ui_out) <do_field_fmt>: Add style
	parameter.
	* tui/tui-out.c (tui_ui_out::do_field_fmt): Update.
	* tracepoint.c (tvariables_info_1): Use metadata style.
	* stack.c (print_frame_arg, print_frame_info, print_frame)
	(info_frame_command_core): Use metadata style.
	* skip.c (info_skip_command): Use metadata style.
	* rust-lang.c (rust_print_enum): Use metadata style.
	* python/py-prettyprint.c (print_stack_unless_memory_error): Use
	metadata style.
	* python/py-framefilter.c (py_print_single_arg): Use metadata
	style.
	* printcmd.c (do_one_display, print_variable_and_value): Use
	metadata style.
	* p-valprint.c (pascal_val_print)
	(pascal_object_print_value_fields): Use metadata style.
	* p-typeprint.c (pascal_type_print_base): Use metadata style.
	* mi/mi-out.h (class mi_ui_out) <do_field_fmt>: Add style
	parameter.
	* mi/mi-out.c (mi_ui_out::do_field_fmt): Update.
	* m2-valprint.c (m2_print_long_set): Use metadata style.
	* m2-typeprint.c (m2_print_type): Use metadata style.
	* infcmd.c (print_return_value_1): Use metadata style.
	* gnu-v3-abi.c (print_one_vtable): Use metadata style.
	* f-valprint.c (info_common_command_for_block): Use metadata
	style.
	* f-typeprint.c (f_type_print_base): Use metadata style.
	* expprint.c (print_subexp_standard): Use metadata style.
	* cp-valprint.c (cp_print_value_fields): Use metadata style.
	* cli/cli-style.h (class cli_style_option): Add constructor.
	(metadata_style): Declare.
	* cli/cli-style.c (metadata_style): New global.
	(_initialize_cli_style): Register metadata style.
	* cli-out.h (class cli_ui_out) <do_field_fmt>: Add style
	parameter.
	* cli-out.c (cli_ui_out::do_field_fmt): Update.
	* c-typeprint.c (c_type_print_base_struct_union)
	(c_type_print_base_1): Use metadata style.
	* breakpoint.c (watchpoint_value_print)
	(print_one_breakpoint_location): Use metadata style.
	* break-catch-syscall.c (print_one_catch_syscall): Use metadata
	style.
	* break-catch-sig.c (signal_catchpoint_print_one): Use metadata
	style.
	* ada-valprint.c (val_print_packed_array_elements, printstr)
	(print_field_values, ada_val_print_ref, ada_val_print): Use
	metadata style.
	* ada-typeprint.c (print_array_type, ada_print_type): Use metadata
	style.
	* ada-tasks.c (print_ada_task_info, info_task): Use metadata
	style.
	* ada-lang.c (user_select_syms): Use metadata style.

gdb/testsuite/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* lib/gdb-utils.exp (style): Handle "metadata" argument.
	* gdb.base/style.exp: Add metadata style test.
2019-10-01 15:12:40 -06:00

121 lines
2.9 KiB
C

/* Output generating routines for GDB CLI.
Copyright (C) 1999-2019 Free Software Foundation, Inc.
Contributed by Cygnus Solutions.
Written by Fernando Nasser for Cygnus.
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 "ui-out.h"
#include "tui-out.h"
#include "tui.h"
/* Output an int field. */
void
tui_ui_out::do_field_signed (int fldno, int width, ui_align alignment,
const char *fldname, LONGEST value)
{
if (suppress_output ())
return;
/* Don't print line number, keep it for later. */
if (m_start_of_line == 0 && strcmp (fldname, "line") == 0)
{
m_start_of_line++;
m_line = value;
return;
}
m_start_of_line++;
cli_ui_out::do_field_signed (fldno, width, alignment, fldname, value);
}
/* Other cli_field_* end up here so alignment and field separators are
both handled by tui_field_string. */
void
tui_ui_out::do_field_string (int fldno, int width, ui_align align,
const char *fldname, const char *string,
const ui_file_style &style)
{
if (suppress_output ())
return;
m_start_of_line++;
if (fldname && m_line > 0 && strcmp (fldname, "fullname") == 0)
{
tui_show_source (string, m_line);
return;
}
cli_ui_out::do_field_string (fldno, width, align, fldname, string, style);
}
void
tui_ui_out::do_field_fmt (int fldno, int width, ui_align align,
const char *fldname, const ui_file_style &style,
const char *format, va_list args)
{
if (suppress_output ())
return;
m_start_of_line++;
cli_ui_out::do_field_fmt (fldno, width, align, fldname, style, format, args);
}
void
tui_ui_out::do_text (const char *string)
{
if (suppress_output ())
return;
m_start_of_line++;
if (m_line > 0)
{
/* Printing a source line, so suppress regular output -- the
line was shown on the TUI's source window by tui_show_source
above instead. */
if (strchr (string, '\n') != 0)
{
/* We've reached the end of the line, so go back to letting
text output go to the console. */
m_line = 0;
m_start_of_line = 0;
}
return;
}
if (strchr (string, '\n'))
m_start_of_line = 0;
cli_ui_out::do_text (string);
}
tui_ui_out::tui_ui_out (ui_file *stream)
: cli_ui_out (stream, 0)
{
}
tui_ui_out *
tui_out_new (struct ui_file *stream)
{
return new tui_ui_out (stream);
}