Commit Graph

866 Commits

Author SHA1 Message Date
Tom Tromey 0743fc83c0 Replace most calls to help_list and cmd_show_list
Currently there are many prefix commands that do nothing but call
either help_list or cmd_show_list.  I happened to notice that one such
call, for "set print type", used the wrong command list parameter,
causing incorrect output.

Rather than fix this bug in isolation, I decided to eliminate this
possibility by adding two new ways to add prefix commands, which
simply route the call to help_list or cmd_show_list, as appropriate.
This makes it impossible for a mismatch to occur.

In some cases, a bit of output was removed; however, I don't think
this output in general was very useful.  It seemed redundant with
what's already printed by help_list.  A representative example is this
hunk, removed from ada-lang.c:

-  printf_unfiltered (_(\
-"\"set ada\" must be followed by the name of a setting.\n"));

This simplified the CLI style set/show commands quite a bit, and
allowed the deletion of a macro.

This also cleans up some unusual code in windows-tdep.c.

Tested on x86-64 Fedora 30.  Note that I have no way to build the
go32-nat.c change.

gdb/ChangeLog
2020-04-17  Tom Tromey  <tromey@adacore.com>

	* auto-load.c (show_auto_load_cmd): Remove.
	(auto_load_show_cmdlist_get): Use add_show_prefix_cmd.
	* arc-tdep.c (_initialize_arc_tdep): Use add_show_prefix_cmd.
	(maintenance_print_arc_command): Remove.
	* tui/tui-win.c (tui_command): Remove.
	(tui_get_cmd_list): Use add_basic_prefix_cmd.
	* tui/tui-layout.c (tui_layout_command): Remove.
	(_initialize_tui_layout): Use add_basic_prefix_cmd.
	* python/python.c (user_set_python, user_show_python): Remove.
	(_initialize_python): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* guile/guile.c (set_guile_command, show_guile_command): Remove.
	(install_gdb_commands): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(info_guile_command): Remove.
	* dwarf2/read.c (set_dwarf_cmd, show_dwarf_cmd): Remove.
	(_initialize_dwarf2_read): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* cli/cli-style.h (class cli_style_option) <add_setshow_commands>:
	Remove do_set and do_show parameters.
	* cli/cli-style.c (set_style, show_style): Remove.
	(_initialize_cli_style): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(cli_style_option::add_setshow_commands): Remove do_set and
	do_show parameters.
	(cli_style_option::add_setshow_commands): Use
	add_basic_prefix_cmd, add_show_prefix_cmd.
	(STYLE_ADD_SETSHOW_COMMANDS): Remove macro.
	(set_style_name): Remove.
	* cli/cli-dump.c (dump_command, append_command): Remove.
	(srec_dump_command, ihex_dump_command, verilog_dump_command)
	(tekhex_dump_command, binary_dump_command)
	(binary_append_command): Remove.
	(_initialize_cli_dump): Use add_basic_prefix_cmd.
	* windows-tdep.c (w32_prefix_command_valid): Remove global.
	(init_w32_command_list): Remove; move into ...
	(_initialize_windows_tdep): ... here.  Use add_basic_prefix_cmd.
	* valprint.c (set_print, show_print, set_print_raw)
	(show_print_raw): Remove.
	(_initialize_valprint): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* typeprint.c (set_print_type, show_print_type): Remove.
	(_initialize_typeprint): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* record.c (set_record_command, show_record_command): Remove.
	(_initialize_record): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* cli/cli-cmds.c (_initialize_cli_cmds): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(info_command, show_command, set_debug, show_debug): Remove.
	* top.h (set_history, show_history): Don't declare.
	* top.c (set_history, show_history): Remove.
	* target-descriptions.c (set_tdesc_cmd, show_tdesc_cmd)
	(unset_tdesc_cmd): Remove.
	(_initialize_target_descriptions): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* symtab.c (info_module_command): Remove.
	(_initialize_symtab): Use add_basic_prefix_cmd.
	* symfile.c (overlay_command): Remove.
	(_initialize_symfile): Use add_basic_prefix_cmd.
	* sparc64-tdep.c (info_adi_command): Remove.
	(_initialize_sparc64_adi_tdep): Use add_basic_prefix_cmd.
	* sh-tdep.c (show_sh_command, set_sh_command): Remove.
	(_initialize_sh_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* serial.c (serial_set_cmd, serial_show_cmd): Remove.
	(_initialize_serial): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* ser-tcp.c (set_tcp_cmd, show_tcp_cmd): Remove.
	(_initialize_ser_tcp): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* rs6000-tdep.c (set_powerpc_command, show_powerpc_command)
	(_initialize_rs6000_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* riscv-tdep.c (show_riscv_command, set_riscv_command)
	(show_debug_riscv_command, set_debug_riscv_command): Remove.
	(_initialize_riscv_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* remote.c (remote_command, set_remote_cmd): Remove.
	(_initialize_remote): Use add_basic_prefix_cmd.
	* record-full.c (set_record_full_command)
	(show_record_full_command): Remove.
	(_initialize_record_full): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* record-btrace.c (cmd_set_record_btrace)
	(cmd_show_record_btrace, cmd_set_record_btrace_bts)
	(cmd_show_record_btrace_bts, cmd_set_record_btrace_pt)
	(cmd_show_record_btrace_pt): Remove.
	(_initialize_record_btrace): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* ravenscar-thread.c (set_ravenscar_command)
	(show_ravenscar_command): Remove.
	(_initialize_ravenscar): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* mips-tdep.c (show_mips_command, set_mips_command)
	(_initialize_mips_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* maint.c (maintenance_command, maintenance_info_command)
	(maintenance_check_command, maintenance_print_command)
	(maintenance_set_cmd, maintenance_show_cmd): Remove.
	(_initialize_maint_cmds): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(show_per_command_cmd): Remove.
	* maint-test-settings.c (maintenance_set_test_settings_cmd):
	Remove.
	(maintenance_show_test_settings_cmd): Remove.
	(_initialize_maint_test_settings): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* maint-test-options.c (maintenance_test_options_command):
	Remove.
	(_initialize_maint_test_options): Use add_basic_prefix_cmd.
	* macrocmd.c (macro_command): Remove
	(_initialize_macrocmd): Use add_basic_prefix_cmd.
	* language.c (set_check, show_check): Remove.
	(_initialize_language): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* infcmd.c (unset_command): Remove.
	(_initialize_infcmd): Use add_basic_prefix_cmd.
	* i386-tdep.c (set_mpx_cmd, show_mpx_cmd): Remove.
	(_initialize_i386_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* go32-nat.c (go32_info_dos_command): Remove.
	(_initialize_go32_nat): Use add_basic_prefix_cmd.
	* cli/cli-decode.c (do_prefix_cmd, add_basic_prefix_cmd)
	(do_show_prefix_cmd, add_show_prefix_cmd): New functions.
	* frame.c (set_backtrace_cmd, show_backtrace_cmd): Remove.
	(_initialize_frame): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* dcache.c (set_dcache_command, show_dcache_command): Remove.
	(_initialize_dcache): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* cp-support.c (maint_cplus_command): Remove.
	(_initialize_cp_support): Use add_basic_prefix_cmd.
	* btrace.c (maint_btrace_cmd, maint_btrace_set_cmd)
	(maint_btrace_show_cmd, maint_btrace_pt_set_cmd)
	(maint_btrace_pt_show_cmd, _initialize_btrace): Use
	add_basic_prefix_cmd, add_show_prefix_cmd.
	* breakpoint.c (save_command): Remove.
	(_initialize_breakpoint): Use add_basic_prefix_cmd.
	* arm-tdep.c (set_arm_command, show_arm_command): Remove.
	(_initialize_arm_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* ada-lang.c (maint_set_ada_cmd, maint_show_ada_cmd)
	(set_ada_command, show_ada_command): Remove.
	(_initialize_ada_language): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* command.h (add_basic_prefix_cmd, add_show_prefix_cmd): Declare.

gdb/testsuite/ChangeLog
2020-04-17  Tom Tromey  <tromey@adacore.com>

	* gdb.cp/maint.exp (test_help): Simplify multiple_help_body.
	Update tests.
	* gdb.btrace/cpu.exp: Update tests.
	* gdb.base/maint.exp: Update tests.
	* gdb.base/default.exp: Update tests.
	* gdb.base/completion.exp: Update tests.
2020-04-17 15:13:41 -06:00
Tom Tromey 400b5eca00 Move event-loop.[ch] to gdbsupport/
This moves event-loop.[ch] to gdbsupport/ and updates the uses in gdb.

gdb/ChangeLog
2020-04-13  Tom Tromey  <tom@tromey.com>

	* run-on-main-thread.c: Update include.
	* unittests/main-thread-selftests.c: Update include.
	* tui/tui-win.c: Update include.
	* tui/tui-io.c: Update include.
	* tui/tui-interp.c: Update include.
	* tui/tui-hooks.c: Update include.
	* top.h: Update include.
	* top.c: Update include.
	* ser-base.c: Update include.
	* remote.c: Update include.
	* remote-notif.c: Update include.
	* remote-fileio.c: Update include.
	* record-full.c: Update include.
	* record-btrace.c: Update include.
	* python/python.c: Update include.
	* posix-hdep.c: Update include.
	* mingw-hdep.c: Update include.
	* mi/mi-main.c: Update include.
	* mi/mi-interp.c: Update include.
	* main.c: Update include.
	* linux-nat.c: Update include.
	* interps.c: Update include.
	* infrun.c: Update include.
	* inf-loop.c: Update include.
	* event-top.c: Update include.
	* event-loop.c: Move to ../gdbsupport/.
	* event-loop.h: Move to ../gdbsupport/.
	* async-event.h: Update include.
	* Makefile.in (COMMON_SFILES, HFILES_NO_SRCDIR): Update.

gdbsupport/ChangeLog
2020-04-13  Tom Tromey  <tom@tromey.com>

	* event-loop.h: Move from ../gdb/.
	* event-loop.cc: Move from ../gdb/.
2020-04-13 14:10:04 -06:00
Tom Tromey 93b54c8ed3 Introduce async-event.[ch]
This patch splits out some gdb-specific code from event-loop, into new
files async-event.[ch].  Strictly speaking this code could perhaps be
put into gdbsupport/, but because gdbserver does not currently use it,
it seemed better, for size reasons, to split it out.

gdb/ChangeLog
2020-04-13  Tom Tromey  <tom@tromey.com>

	* tui/tui-win.c: Include async-event.h.
	* remote.c: Include async-event.h.
	* remote-notif.c: Include async-event.h.
	* record-full.c: Include async-event.h.
	* record-btrace.c: Include async-event.h.
	* infrun.c: Include async-event.h.
	* event-top.c: Include async-event.h.
	* event-loop.h: Move some declarations to async-event.h.
	* event-loop.c: Don't include ser-event.h or top.h.  Move some
	code to async-event.c.
	* async-event.h: New file.
	* async-event.c: New file.
	* Makefile.in (COMMON_SFILES): Add async-event.c.
	(HFILES_NO_SRCDIR): Add async-event.h.
2020-04-13 14:10:04 -06:00
Tom de Vries c9af65210c [gdb/testsuite] Fix layout next/prev/regs help message
With test-case gdb.gdb/unittest.exp, I run into:
...
(gdb) maintenance selftest^M
   ...
Running selftest help_doc_invariants.^M
help doc broken invariant: command 'layout next' help doc first line is \
  not terminated with a '.' character^M
help doc broken invariant: command 'layout prev' help doc first line is \
  not terminated with a '.' character^M
help doc broken invariant: command 'layout regs' help doc first line is \
  not terminated with a '.' character^M
Self test failed: self-test failed at help-doc-selftests.c:95^M
...

Fix this by adding the missing '.' character.

Build and reg-tested on x86_64-linux.

gdb/ChangeLog:

2020-02-24  Tom de Vries  <tdevries@suse.de>

	* tui/tui-layout.c (_initialize_tui_layout): Fix help messages for
	commands layout next/prev/regs.
2020-02-24 12:30:48 +01:00
Tom Tromey 3b0fb49e30 Fix cast in TUI_DISASM_WIN
I noticed that the TUI_DISASM_WIN macro cast the disassembly window to
a base type, rather than its correct type.  This patch fixes this
oversight.

2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-data.h (TUI_DISASM_WIN): Cast to tui_disasm_window.

Change-Id: Ied3dbac9ef3dc48ceb9e0850fe4ada3c316dd769
2020-02-22 12:57:25 -07:00
Tom Tromey 283be8bfa4 Add "usage" text to all TUI command help
This adds "usage" text to the help for all all the TUI commands.  In
some cases the usage is borderline, but I tend to think being complete
is preferable.

2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-win.c (_initialize_tui_win): Add usage text.
	* tui/tui-stack.c (_initialize_tui_stack): Add usage text.
	* tui/tui-regs.c (_initialize_tui_regs): Add usage text.
	* tui/tui.c (_initialize_tui): Add usage text.

Change-Id: I727f7a7cfc03efa248ef98f30a18be393819e30b
2020-02-22 12:57:25 -07:00
Tom Tromey ca793b969c Use error_no_arg in TUI
This changes a couple of TUI commands to use error_no_arg.  The
commands are also simplified a bit, and changed to use other gdb CLI
utility functions like skip_to_space.  This lets us removes a couple
of defines that don't interact properly with gettext.

2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-win.c (tui_set_focus_command)
	(tui_set_win_height_command): Use error_no_arg.
	(_initialize_tui_win): Update help text.
	(FOCUS_USAGE, WIN_HEIGHT_USAGE): Don't define.

Change-Id: I2bf95c2e5cfe1472d068388fa39f0cf07591b76c
2020-02-22 12:57:25 -07:00
Tom Tromey 432b5c4022 Make some tui_source_window_base members "protected"
This renames a few members of tui_source_window_base, and makes them
"protected".

2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-layout.c (extract_display_start_addr): Rewrite.
	* tui/tui-disasm.h (struct tui_disasm_window)
	<display_start_addr>: Declare.
	* tui/tui-source.h (struct tui_source_window)
	<display_start_addr>: Declare.
	* tui/tui-winsource.h (struct tui_source_window_base)
	<show_source_line, display_start_addr>: New methods.
	<m_horizontal_offset, m_start_line_or_addr, m_gdbarch, m_content>:
	Rename and move to protected section.
	* tui/tui-winsource.c (tui_source_window_base::update_source_window)
	(tui_source_window_base::do_erase_source_content): Update.
	(tui_source_window_base::show_source_line): Now a method.
	(tui_source_window_base::show_source_content)
	(tui_source_window_base::tui_source_window_base)
	(tui_source_window_base::rerender)
	(tui_source_window_base::refill)
	(tui_source_window_base::do_scroll_horizontal)
	(tui_source_window_base::set_is_exec_point_at)
	(tui_source_window_base::update_breakpoint_info)
	(tui_source_window_base::update_exec_info): Update.
	* tui/tui-source.c (tui_source_window::set_contents)
	(tui_source_window::showing_source_p)
	(tui_source_window::do_scroll_vertical)
	(tui_source_window::location_matches_p)
	(tui_source_window::line_is_displayed): Update.
	(tui_source_window::display_start_addr): New method.
	* tui/tui-disasm.c (tui_disasm_window::set_contents)
	(tui_disasm_window::do_scroll_vertical)
	(tui_disasm_window::location_matches_p): Update.
	(tui_disasm_window::display_start_addr): New method.

Change-Id: I74d72b9da5f458664427db643a108634690c6e19
2020-02-22 12:57:25 -07:00
Tom Tromey 01b1af321f Allow TUI windows in Python
This patch adds support for writing new TUI windows in Python.

2020-02-22  Tom Tromey  <tom@tromey.com>

	* NEWS: Add entry for gdb.register_window_type.
	* tui/tui-layout.h (window_factory): New typedef.
	(tui_register_window): Declare.
	* tui/tui-layout.c (saved_tui_windows): New global.
	(tui_apply_current_layout): Use it.
	(tui_register_window): New function.
	* python/python.c (do_start_initialization): Call
	gdbpy_initialize_tui.
	(python_GdbMethods): Add "register_window_type" function.
	* python/python-internal.h (gdbpy_register_tui_window)
	(gdbpy_initialize_tui): Declare.
	* python/py-tui.c: New file.
	* Makefile.in (SUBDIR_PYTHON_SRCS): Add py-tui.c.

gdb/doc/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* python.texi (Python API): Add menu item.
	(TUI Windows In Python): New node.

gdb/testsuite/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* gdb.python/tui-window.exp: New file.
	* gdb.python/tui-window.py: New file.

Change-Id: I85fbfb923a1840450a00a7dce113a05d7f048baa
2020-02-22 12:57:25 -07:00
Tom Tromey fc96d20b2c Remove the TUI annotation hack
do_tui_putc has some code to remove annotations from gdb output.  This
was added in 2001, see commit a198b876bb.

However, I think this code is not needed.  It seems very unlikely to
enable both annotations and the TUI, and in any case I think this is
something that should not be supported.

So, this patch removes this code.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-io.c (do_tui_putc): Don't omit annotations.

Change-Id: I05728110365a362d37c9821df9c8779316100bb8
2020-02-22 11:48:39 -07:00
Tom Tromey 935c78c046 Remove tui_set_win_with_focus
I noticed that the TUI had two functions with similar names:
tui_set_win_focus_to and tui_set_win_with_focus.

However, one was just an implementation detail of the latter.  So,
this patch removes tui_set_win_with_focus entirely, to avoid any
temptation to call it.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-win.c (tui_set_win_focus_to): Move to tui-data.c.
	* tui/tui-data.h (tui_set_win_with_focus): Don't declare.
	* tui/tui-data.c (tui_set_win_with_focus): Remove.
	(tui_set_win_focus_to): Move from tui-win.c.

Change-Id: Idffddab773436bdf80d55480906d76b292981ef2
2020-02-22 11:48:38 -07:00
Tom Tromey 0240c8f11b Change how TUI windows are instantiated
This adds a new global that maps from window names to window
constructor functions, and then changes tui_get_window_by_name and
validate_window_name to use it.  This is another step toward
user-defined window types.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-layout.c (make_standard_window, get_locator_window): New
	functions.
	(known_window_types): New global.
	(tui_get_window_by_name): Reimplement.
	(initialize_known_windows): New function.
	(validate_window_name): Rewrite.
	(_initialize_tui_layout): Call initialize_known_windows.

Change-Id: I9037aac550299b9d945899220a30c2d3af9dd0de
2020-02-22 11:48:38 -07:00
Tom Tromey fdb01f0ce4 TUI windows do not need to store their type
TUI windows no longer need to store their type -- there's only a
single spot that uses this information, and it can be changed to use
dynamic_cast.  (It could be cleaned up even more, by using a virtual
method, but I haven't done so.)  This patch removes the "type" field
from tui_gen_win_info, and this in turn allows removing a couple of
enumerator constants.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui.h (enum tui_win_type) <LOCATOR_WIN, DATA_ITEM_WIN>:
	Remove constants.
	* tui/tui-winsource.h (struct tui_source_window_base)
	<tui_source_window_base>: Remove parameter.
	* tui/tui-winsource.c
	(tui_source_window_base::tui_source_window_base): Remove
	parameter.
	(tui_source_window_base::refill): Update.
	* tui/tui-stack.h (struct tui_locator_window)
	<tui_locator_window>: Update.
	* tui/tui-source.h (struct tui_source_window) <tui_source_window>:
	Default the constructor.
	* tui/tui-regs.h (struct tui_data_item_window)
	<tui_data_item_window>: Default the constructor.
	(struct tui_data_window) <tui_data_window>: Likewise.
	* tui/tui-disasm.h (struct tui_disasm_window) <tui_disasm_window>:
	Default the constructor.
	* tui/tui-data.h (struct tui_gen_win_info) <tui_gen_win_info>:
	Default the constructor.
	<type>: Remove.
	(struct tui_win_info) <tui_win_info>: Default the constructor.
	* tui/tui-data.c (tui_win_info::tui_win_info): Remove.
	* tui/tui-command.h (struct tui_cmd_window) <tui_cmd_window>:
	Default the constructor.

Change-Id: I594cd07d2e0bba71ad594a6fb263904ce2febcd6
2020-02-22 11:48:37 -07:00
Tom Tromey 865a5aec04 Remove tui_delete_invisible_windows and tui_make_all_invisible
tui_delete_invisible_windows is only needed after applying a layout,
and tui_make_all_invisible is only needed before applying a layout.

This patch removes these functions, in favor of doing this management
directly in tui_apply_current_layout.  This is needed so that the
lifetimes of non-built-in windows will be properly managed.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-wingeneral.h (tui_make_all_invisible): Don't declare.
	* tui/tui-wingeneral.c (tui_make_all_invisible): Remove.
	* tui/tui-win.c (tui_resize_all): Don't call
	tui_delete_invisible_windows.
	* tui/tui-layout.c (tui_apply_current_layout): Delete windows when
	done.
	(tui_set_layout): Update.
	(tui_add_win_to_layout): Don't call tui_delete_invisible_windows.
	* tui/tui-data.h (tui_delete_invisible_windows): Don't declare.
	* tui/tui-data.c (tui_delete_invisible_windows): Remove.

Change-Id: Ia3603b021dcb7ec31700a4a32640cd09b00b8f3b
2020-02-22 11:48:37 -07:00
Tom Tromey e098d18cfc Handle ambiguity in tui_partial_win_by_name
This changes tui_partial_win_by_name to correctly handle an ambiguous
name prefix.  This will be important once the user can register new
window types.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-win.c (tui_partial_win_by_name): Handle ambiguity
	correctly.

Change-Id: I59aaacd697eeab649164183457ef722dae58d60d
2020-02-22 11:48:36 -07:00
Tom Tromey eb9c887456 Reimplement tui_next_win and tui_prev_win
This reimplements tui_next_win and tui_prev_win.  Now they account for
the possibility of windows not on tui_win_list.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-data.c (tui_next_win, tui_prev_win): Reimplement.

Change-Id: Ifcd402f76fe0a16e0fe9275a185d550279c01660
2020-02-22 11:48:35 -07:00
Tom Tromey 7eed1a8e83 Change TUI window iteration
This changes the TUI to track all the instantiated windows in a new
global vector.  After this, iteration over TUI windows is done by
simply iterating over this vector.

This approach makes it simpler to define new window types.  In
particular, a subsequent patch will add the ability to define a TUI
window from Python.

Note that this series will not remove tui_win_list.  This will
continue to exist in parallel, only because it was simpler to leave
this alone.  Perhaps it could still be removed in the future.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-winsource.h (struct tui_source_window_iterator)
	<inner_iterator>: New etytypedef.
	<tui_source_window_iterator>: Take "end" parameter.
	<tui_source_window_iterator>: Take iterator.
	<operator*, advance>: Update.
	<m_iter>: Change type.
	<m_end>: New field.
	(struct tui_source_windows) <begin, end>: Update.
	* tui/tui-layout.c (tui_windows): New global.
	(tui_apply_current_layout): Clear tui_windows.
	(tui_layout_window::apply): Update tui_windows.
	* tui/tui-data.h (tui_windows): Declare.
	(all_tui_windows): Now inline function.
	(class tui_window_iterator, struct all_tui_windows): Remove.

Change-Id: I6ab77976d6326f427178f725434f8f82046e0bbf
2020-02-22 11:48:34 -07:00
Tom Tromey 7c043ba695 Add horizontal splitting to TUI layout
This changes the TUI layout engine to add horizontal splitting.  Now,
windows can be side-by-side.

A horizontal split is defined using the "-horizontal" parameter to
"tui new-layout".

This also adds the first "winheight" test to the test suite.  One open
question is whether we want a new "winwidth" command, now that
horizontal layouts are possible.  This is easily done using the
generic layout code.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	PR tui/17850:
	* tui/tui-win.c (tui_gen_win_info::max_width): New method.
	* tui/tui-layout.h (class tui_layout_base) <get_sizes>: Add
	"height" argument.
	(class tui_layout_window) <get_sizes>: Likewise.
	(class tui_layout_split) <tui_layout_split>: Add "vertical"
	argument.
	<get_sizes>: Add "height" argument.
	<m_vertical>: New field.
	* tui/tui-layout.c (tui_layout_split::clone): Update.
	(tui_layout_split::get_sizes): Add "height" argument.
	(tui_layout_split::adjust_size, tui_layout_split::apply): Update.
	(tui_new_layout_command): Parse "-horizontal".
	(_initialize_tui_layout): Update help string.
	(tui_layout_split::specification): Add "-horizontal" when needed.
	* tui/tui-layout.c (tui_layout_window::get_sizes): Add "height"
	argument.
	* tui/tui-data.h (struct tui_gen_win_info) <max_width, min_width>:
	New methods.

gdb/doc/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	PR tui/17850:
	* gdb.texinfo (TUI Commands): Document horizontal layouts.

gdb/testsuite/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	PR tui/17850:
	* gdb.tui/new-layout.exp: Add horizontal layout and winheight
	tests.

Change-Id: I38b35e504f34698578af86686be03c0fefd954ae
2020-02-22 11:48:33 -07:00
Tom Tromey 6bc5664858 Change return type of tui_layout_base::adjust_size
This changes tui_layout_base::adjust_size to return a new enum type.
I broke this out into a separate patch because it simplifies a
subsequent patch.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-layout.h (enum tui_adjust_result): New.
	(class tui_layout_base) <adjust_size>: Return tui_adjust_result.
	(class tui_layout_window) <adjust_size>: Return
	tui_adjust_result.  Rewrite.
	(class tui_layout_split) <adjust_size>: Return tui_adjust_result.
	* tui/tui-layout.c (tui_layout_split::adjust_size): Update.

Change-Id: I821b48ab06a9b9485875e147bd08a3bc46b900a0
2020-02-22 11:48:33 -07:00
Tom Tromey c22fef7e4c Allow TUI sub-layouts in "new-layout" command
The new TUI layout engine has support for "sub-layouts" -- this is a
layout that includes another layout as a child.  A sub-layout is
treated as a unit when allocating space.

There's not a very strong reason to use sub-layouts currently.  This
patch exists to introduce the idea, and to simplify the subsequent
patch that adds horizontal layouts -- where sub-layouts are needed.

Because this patch won't go in on its own, I chose to defer
documenting this change until the subsequent horizontal layout patch.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-layout.h (class tui_layout_split) <add_split>: Change
	parameter and return types.
	(class tui_layout_base) <specification>: Add "depth".
	(class tui_layout_window) <specification>: Add "depth".
	(class tui_layout_split) <specification>: Add "depth".
	* tui/tui-layout.c (tui_layout_split::add_split): Change parameter
	and return types.
	(tui_new_layout_command): Parse sub-layouts.
	(_initialize_tui_layout): Update help string.
	(tui_layout_window::specification): Add "depth".
	(add_layout_command): Update.

gdb/testsuite/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* gdb.tui/new-layout.exp: Add sub-layout tests.

Change-Id: Iddf52d067a552c168b8a67f29caf7ac86404b10c
2020-02-22 11:48:32 -07:00
Tom Tromey ee325b61cd Add the "tui new-layout" command
This adds a new command, "tui new-layout".  This command can be used
to define a new TUI window layout.

The command is used like:

(gdb) tui new-layout name src 1 regs 1 status 0 cmd 1

The first argument is the name of the layout.  In this example, it is
"name", so the new layout could be seen by "layout name".

Subsequent arguments come in pairs, where the first item in a pair is
the name of a window, and the second item in a pair is the window's
weight.  A weight is just an integer -- a window's allocated size is
proportional to the total of the weights given.  So, in the above
example, all windows will have the same size (the status windows's
weight does not matter, because it has fixed height).

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* NEWS: Add "tui new-layout" item.
	* tui/tui-layout.c (add_layout_command): Return cmd_list_element.
	Add new-layout command to help text.
	(validate_window_name): New function.
	(tui_new_layout_command): New function.
	(_initialize_tui_layout): Register "new-layout".
	(tui_layout_window::specification): New method.
	(tui_layout_window::specification): New method.
	* tui/tui-layout.h (class tui_layout_base) <specification>: New
	method.
	(class tui_layout_window) <specification>: New method.
	(class tui_layout_split) <specification>: New method.

gdb/doc/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* gdb.texinfo (TUI Overview): Mention user layouts.
	(TUI Commands): Document "tui new-layout".

gdb/testsuite/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* gdb.tui/new-layout.exp: New file.

Change-Id: Id7c3ace20ab1e8924f8f4ad788f40210f58a5c05
2020-02-22 11:48:31 -07:00
Tom Tromey 416eb92d84 Remove hard-coded TUI layouts
This changes the TUI so that the available layouts are no longer
completely hard-coded.  "enum tui_layout_type" is removed, and then
all the fallout from this is fixed up.

This patch also reimplements the "layout" command to be a prefix
command.  The concrete layouts are simply sub-commands now.  This
provides completion and correct abbreviation behavior for free.

Finally, this also changes the name of the locator window to "status".
This matches the documentation and will be exposed to the user in a
subsequent patch.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui.c (tui_enable): Call tui_set_initial_layout.
	* tui/tui-win.c (window_name_completer): Update comment.
	* tui/tui-layout.h (class tui_layout_base) <replace_window>:
	Declare method.
	(class tui_layout_window) <replace_window>: Likewise.
	(class tui_layout_split) <replace_window>: Likewise.
	(tui_set_layout): Don't declare.
	(tui_set_initial_layout): Declare function.
	* tui/tui-layout.c (layouts, applied_skeleton, src_regs_layout)
	(asm_regs_layout): New globals.
	(tui_current_layout, show_layout): Remove.
	(tui_set_layout, tui_add_win_to_layout): Rewrite.
	(find_layout, tui_apply_layout): New function.
	(layout_completer): Remove.
	(tui_next_layout): Reimplement.
	(tui_next_layout_command): New function.
	(tui_set_initial_layout, tui_prev_layout_command): New functions.
	(tui_regs_layout): Reimplement.
	(tui_regs_layout_command): New function.
	(extract_display_start_addr): Rewrite.
	(next_layout, prev_layout): Remove.
	(tui_layout_window::replace_window): New method.
	(tui_layout_split::replace_window): New method.
	(destroy_layout): New function.
	(layout_list): New global.
	(add_layout_command): New function.
	(initialize_layouts): Update.
	(tui_layout_command): New function.
	(_initialize_tui_layout): Install "layout" commands.
	* tui/tui-data.h (enum tui_layout_type): Remove.
	(tui_current_layout): Don't declare.

Change-Id: I9b5f7ab3ce838d6b340b8c373ef649a8e0a74b73
2020-02-22 11:48:30 -07:00
Tom Tromey 0dbc2fc759 Reimplement "tui reg" command
This reimplements the low-level layout function that is used by the
"tui reg" command.  Now it simply calls into the existing "layout"
command, though this will be changed again in a subsequent patch.  The
rationale for this patch is that it makes it simpler to remove
"enum tui_layout_type".

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-regs.c (tui_reg_layout): Remove.
	(tui_reg_command): Use tui_regs_layout.
	* tui/tui-layout.h (tui_reg_command): Declare.
	* tui/tui-layout.c (tui_reg_command): New function.

Change-Id: I0ca6884e2967005e7d3fbf5f13a0ac8f9c3298cf
2020-02-22 11:48:29 -07:00
Tom Tromey 5afe342e2a Reimplement TUI "C-x 1" binding
The TUI "C-x 1" key binding removes TUI windows, based on the current
layout.  With user-defined layouts, this is no longer easy to do.

This patch changes "C-x 1" to simply delete windows, leaving just the
focus window, the locator, and the command window.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui.c (tui_rl_delete_other_windows): Call
	tui_remove_some_windows.
	* tui/tui-layout.h (class tui_layout_base) <remove_windows>:
	Declare method.
	(class tui_layout_window) <remove_windows>: New method.
	(class tui_layout_split) <remove_windows>: Declare.
	(tui_remove_some_windows): Declare.
	* tui/tui-layout.c (tui_remove_some_windows): New function.
	(tui_layout_split::remove_windows): New method.

Change-Id: If186f9c3f263913e963b965204481d1b4385c6d4
2020-02-22 11:48:29 -07:00
Tom Tromey 427326a826 Simplify TUI C-x 2 binding
The TUI "C-x 2" binding tries to switch to a different layout based on
the current layout.  Once user-defined layouts are available, this
won't really make sense.  I wasn't entirely sure how to handle this.

This patch changes the binding to simply cycle through the existing
layouts.  I considered this a reasonable, though not ideal,
compromise.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui.c (tui_rl_change_windows): Call tui_next_layout.
	* tui/tui-layout.h (tui_next_layout): Declare.
	* tui/tui-layout.c (tui_next_layout): New function.

Change-Id: Ic101f0e3831a4235a048b3090ef60f025f7449bb
2020-02-22 11:48:28 -07:00
Tom Tromey 3fe12b6d67 Fix latent display bug in tui_data_window
tui_data_window creates new curses windows, but does not pass in
coordinates relative to the data window's origin.  This means that the
data window could only ever be displayed as the topmost window in a
layout.  This is not a currently problem, because all the existing
layouts do this; but a subsequent patch will add user-defined layouts,
which could do otherwise.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-regs.c (tui_data_window::display_registers_from): Use
	correct coordinates.

Change-Id: I5101f2b2869557b87381ebdeebd9b7fd28687831
2020-02-22 11:48:28 -07:00
Tom Tromey 59b8b5d247 Simplify tui_add_win_to_layout
tui_add_win_to_layout is only ever called for the source or assembly
windows.  This simplifies the function by removing the DATA_WIN case.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-layout.h (tui_add_win_to_layout): Add comment.
	* tui/tui-layout.c (tui_add_win_to_layout): Add assert.  Remove
	DATA_WIN case.

Change-Id: Idfca902c6c90153acc5d19af4c33aa74bc3caf31
2020-02-22 11:48:27 -07:00
Tom Tromey 2a3d458be3 Use TUI_DISASM_WIN instead of tui_win_list array
This is a minor cleanup to change tui_get_low_disassembly_address to
use TUI_DISASM_WIN, rather than the tui_win_list array.  This is more
in line with what the rest of the TUI code does.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* tui/tui-disasm.c (tui_get_low_disassembly_address): Use
	TUI_DISASM_WIN, not tui_win_list.

Change-Id: I999335ee3f63a4b570e84f320236b78f2bd5b780
2020-02-22 11:48:27 -07:00
Tom Tromey da5bd37ebc Remove some ui_file_* functions
This removes ui_file_isatty, ui_file_read, ui_file_write,
ui_file_write_async_safe, ui_file_flush, and ui_file_puts, replacing
them with calls to the appropriate method instead.

gdb/ChangeLog
2020-02-11  Tom Tromey  <tromey@adacore.com>

	* remote.c (remote_console_output): Update.
	* printcmd.c (printf_command): Update.
	* event-loop.c (gdb_wait_for_event): Update.
	* linux-nat.c (sigchld_handler): Update.
	* remote-sim.c (gdb_os_write_stdout): Update.
	(gdb_os_flush_stdout): Update.
	(gdb_os_flush_stderr): Update.
	(gdb_os_write_stderr): Update.
	* exceptions.c (print_exception): Update.
	* remote-fileio.c (remote_fileio_func_read): Update.
	(remote_fileio_func_write): Update.
	* tui/tui.c (tui_enable): Update.
	* tui/tui-interp.c (tui_interp::init): Update.
	* utils.c (init_page_info): Update.
	(putchar_unfiltered, fputc_unfiltered): Update.
	(gdb_flush): Update.
	(emit_style_escape): Update.
	(flush_wrap_buffer, fputs_maybe_filtered): Update.
	* ui-file.c (ui_file_isatty, ui_file_read, ui_file_write)
	(ui_file_write_async_safe, ui_file_flush, ui_file_puts): Remove.
	(stderr_file::write): Update.
	(stderr_file::puts): Update.
	* ui-file.h (ui_file_isatty, ui_file_write)
	(ui_file_write_async_safe, ui_file_read, ui_file_flush)
	(ui_file_puts): Don't declare.

Change-Id: I3ca9b36e9107f6adbc41e014f5078b41d6bcec4d
2020-02-11 07:05:28 -07:00
Shahab Vahedi 1d5d29e73f gdb: Catch exceptions if the source file is not found
The source_cache::ensure method may throw an exception through
the invocation of source_cache::get_plain_source_lines. This
happens when the source file is not found. The expected behaviour
of "ensure" is only returning "true" or "false" according to the
documentation in the header file.

So far, if gdb is in source layout and a file is missing, you see
some outputs like below:

 ,---------------------------------------------.
 | test.c file is loaded in the source window. |
 |                                             |
 | int main()                                  |
 | ...                                         |
 |---------------------------------------------|
 | Remote debugging using :1234                |
 | __start () at /path/to/crt0.S:141           |
 | /path/to/crt0.S: No such file or directory. |
 | (gdb) p/x $pc                               |
 | $1 = 0x124                                  |
 | (gdb) n                                     |
 | /path/to/crt0.S: No such file or directory. |
 | (gdb) p/x $pc                               |
 | $2 = 0x128                                  |
 | (gdb) [pressing arrow-down key]             |
 | (gdb) terminate called after throwing an    |
 |       instance of 'gdb_exception_error'     |
 `---------------------------------------------'
Other issues have been encountered as well [1].

The patch from Pedro [2] which is about preventing exceptions
from crossing the "readline" mitigates the situation by not
causing gdb crash, but still there are lots of errors printed:

 ,---------------------------------------------.
 | test.c file is loaded in the source window. |
 |                                             |
 | int main()                                  |
 | ...                                         |
 |---------------------------------------------|
 | Remote debugging using :1234                |
 | __start () at /path/to/crt0.S:141           |
 | /path/to/crt0.S: No such file or directory. |
 | (gdb) [pressing arrow-down key]             |
 | /path/to/crt0.S: No such file or directory. |
 | (gdb) [pressing arrow-down key]             |
 | /path/to/crt0.S: No such file or directory. |
 | (gdb) [pressing arrow-up key]               |
 | /path/to/crt0.S: No such file or directory. |
 `---------------------------------------------'

With the changes of this patch, the behavior is like:
 ,---------------------------------------------.
 | initially, source window is empty because   |
 | crt0.S is not found and according to the    |
 | program counter that is the piece of code   |
 | being executed.                             |
 |                                             |
 | later, when we break at main (see commands  |
 | below), this window will be filled with the |
 | the contents of test.c file.                |
 |---------------------------------------------|
 | Remote debugging using :1234                |
 | __start () at /path/to/crt0.S:141           |
 | (gdb) p/x $pc                               |
 | $1 = 0x124                                  |
 | (gdb) n                                     |
 | (gdb) p/x $pc                               |
 | $2 = 0x128                                  |
 | (gdb) b main                                |
 | Breakpoint 1 at 0x334: file test.c, line 8. |
 | (gdb) cont                                  |
 | Continuing.                                 |
 | Breakpoint 1, main () at hello.c:8          |
 | (gdb) n                                     |
 | (gdb)                                       |
 `---------------------------------------------'

There is no crash and the error message is completely
gone. Maybe it is good practice that the error is
shown inside the source window.

I tested this change against gdb.base/list-missing-source.exp
and there was no regression.

[1]
It has also been observed in the past that the register
values are not transferred from qemu's gdb stub, see:
https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/issues/226

[2]
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=2f267673f0fdee9287e6d404ecd4f2d29da0d2f2

gdb/ChangeLog:

	* source-cache.c (source_cache::ensure): Surround
	get_plain_source_lines with a try/catch.
	(source_cache::get_line_charpos): Get rid of try/catch
	and only check for the return value of "ensure".
	* tui/tui-source.c (tui_source_window::set_contents):
	Simplify "nlines" calculation.

gdb/testsuite/ChangeLog:

	* gdb.tui/tui-missing-src.exp: Add the "missing source
	file" test for the TUI.
2020-02-06 17:54:59 +01:00
Andrew Burgess 42330a681a gdb/tui: Disassembler scrolling of very small programs
In TUI mode, if the disassembly output for the program is less than
one screen long, then currently if the user scrolls down until on the
last assembly instruction is displayed and then tries to scroll up
using Page-Up, the display doesn't update - they are stuck viewing the
last line.

If the user tries to scroll up using the Up-Arrow, then the display
scrolls normally.

What is happening is on the Page-Up we ask GDB to scroll backward the
same number of lines as the height of the TUI ASM window.  The back
scanner, which looks for a good place to start disassembling, fails to
find a starting address which will provide the requested number of new
lines before we get back to the original starting address (which is
not surprising, our whole program contains less than a screen height
of instructions), as a result the back scanner gives up and returns
the original starting address.

When we scroll with Up-Arrow we only ask the back scanner to find 1
new instruction, which it manages to do, so this scroll works.

The solution here is, when we fail to find enough instructions, to
return the lowest address we did manage to find.  This will ensure we
jump to the lowest possible address in the disassembly output.

gdb/ChangeLog:

	PR tui/9765
	* tui/tui-disasm.c (tui_find_disassembly_address): If we don't
	have enough lines to fill the screen, still return the lowest
	address we found.

gdb/testsuite/ChangeLog:

	PR tui/9765
	* gdb.tui/tui-layout-asm-short-prog.S: New file.
	* gdb.tui/tui-layout-asm-short-prog.exp: New file.

Change-Id: I6a6a7972c68a0559e9717fd8d82870b669a40af3
2020-01-31 00:41:06 +00:00
Andrew Burgess 7a27a45bc6 gdb/tui: Update help text for scroll commands
GDB has some commands ('+', '-', '<', and '>') for scrolling the SRC
and ASM TUI windows from the CMD window, however the help text for
these commands lists the arguments in the wrong order.

This commit updates the help text to match how GDB actually works, and
also extends the text to describe what the arguments mean, and what
the defaults are.

There should be no change in GDBs functionality after this commit.

gdb/ChangeLog:

	* tui/tui-win.c (_initialize_tui_win): Update help text for '+',
	'-', '<', and '>' commands.

Change-Id: Ib2624891de1f4ba983838822206304e4c3ed982e
2020-01-31 00:41:05 +00:00
Andrew Burgess 733d0a6795 gdb/tui: asm window handles invalid memory and scrolls better
This started as a patch to enable the asm window to handle attempts to
disassemble invalid memory, but it ended up expanding into a
significant rewrite of how the asm window handles scrolling.  These
two things ended up being tied together as it was impossible to
correctly test scrolling into invalid memory when the asm window would
randomly behave weirdly while scrolling.

Things that should work nicely now; scrolling to the bottom or top of
the listing with PageUp, PageDown, Up Arrow, Down Arrow and we should
be able to scroll past small areas of memory that don't have symbols
associated with them.  It should also be possible to scroll to the
start of a section even if there's no symbol at the start of the
section.

Adding tests for this scrolling was a little bit of a problem.  First
I would have liked to add tests for PageUp / PageDown, but the tuiterm
library we use doesn't support these commands right now due to only
emulating a basic ascii terminal.  Changing this to emulate a more
complex terminal would require adding support for more escape sequence
control codes, so I've not tried to tackle that in this patch.

Next, I would have liked to test scrolling to the start or end of the
assembler listing and then trying to scroll even more, however, this
is a problem because in a well behaving GDB a scroll at the start/end
has no effect.  What we need to do is:

  - Move to start of assembler listing,
  - Send scroll up command,
  - Wait for all curses output,
  - Ensure the assembler listing is unchanged, we're still at the
    start of the listing.

The problem is that there is no curses output, so how long do we wait
at step 3?  The same problem exists for scrolling to the bottom of the
assembler listing.  However, when scrolling down you can at least see
the end coming, so I added a test for this case, however, this feels
like an area of code that is massively under tested.

gdb/ChangeLog:

	PR tui/9765
	* minsyms.c (lookup_minimal_symbol_by_pc_section): Update header
	comment, add extra parameter, and update to store previous symbol
	when appropriate.
	* minsyms.h (lookup_minimal_symbol_by_pc_section): Update comment,
	add extra parameter.
	* tui/tui-disasm.c (tui_disassemble): Update header comment,
	remove unneeded parameter, add try/catch around gdb_print_insn,
	rewrite to add items to asm_lines vector.
	(tui_find_backward_disassembly_start_address): New function.
	(tui_find_disassembly_address): Updated throughout.
	(tui_disasm_window::set_contents): Update for changes to
	tui_disassemble.
	(tui_disasm_window::do_scroll_vertical): No need to adjust the
	number of lines to scroll.

gdb/testsuite/ChangeLog:

	PR tui/9765
	* gdb.tui/tui-layout-asm.exp: Add scrolling test for asm window.

Change-Id: I323987c8fd316962c937e73c17d952ccd3cfa66c
2020-01-24 00:10:33 +00:00
Pedro Alves 2f267673f0 gdb/tui: Prevent exceptions from trying to cross readline
This is triggered by simply scrolling off the end of the dissasembly
window.  This commit doesn't fix the actual exception that is being
thrown, which will still need to be fixed, but makes sure that we
don't ever throw an exception out to readline.

gdb/ChangeLog:
yyyy-mm-dd  Pedro Alves  <palves@redhat.com>

        PR tui/9765
        * tui/tui-io.c (tui_getc): Rename to ...
        (tui_getc_1): ... this.
        (tui_get): New, reimplent as try/catch wrapper around tui_getc_1.

Change-Id: I2e32a401ab34404b2132ec82a3e1c17b9b723e41
2020-01-24 00:10:33 +00:00
Tom Tromey 45bbae5c4b Remove flickering from the TUI
In some cases, the TUI flickers when redrawing.  This can be seen
mostly easily when switching layouts.

This patch fixes the problem by exploiting the double buffering that
curses already does.  In some spots, the TUI will now disable flushing
the curses buffers to the screen; and then flush them all at once when
the rendering is complete.

gdb/ChangeLog
2020-01-19  Tom Tromey  <tom@tromey.com>

	* tui/tui.c (tui_show_assembly): Use tui_suppress_output.
	* tui/tui-wingeneral.h (class tui_suppress_output): New.
	(tui_wrefresh): Declare.
	* tui/tui-wingeneral.c (suppress_output): New global.
	(tui_suppress_output, ~tui_suppress_output): New constructor and
	destructor.
	(tui_wrefresh): New function.
	(tui_gen_win_info::refresh_window): Use tui_wrefresh.
	(tui_gen_win_info::make_window): Call wnoutrefresh when needed.
	* tui/tui-regs.h (struct tui_data_window) <no_refresh>: Declare
	method.
	* tui/tui-regs.c (tui_data_window::erase_data_content): Call
	tui_wrefresh.
	(tui_data_window::no_refresh): New method.
	(tui_data_item_window::refresh_window): Call tui_wrefresh.
	(tui_reg_command): Use tui_suppress_output
	* tui/tui-layout.c (tui_set_layout): Use tui_suppress_output.
	* tui/tui-data.h (struct tui_gen_win_info) <no_refresh>: New
	method.
	* tui/tui-command.c (tui_refresh_cmd_win): Call tui_wrefresh.

Change-Id: Icb832ae100b861de3af3307488e636fa928d5c9f
2020-01-19 13:08:49 -07:00
Tom Tromey 4f13c1c00b Make "file" clear TUI source window
I noticed that a plain "file" will leave the current source file in
the TUI source window.  Instead, I think, it should clear the source
window.  This patch implements this.

gdb/ChangeLog
2020-01-19  Tom Tromey  <tom@tromey.com>

	* tui/tui-winsource.c (tui_update_source_windows_with_line):
	Handle case where symtab is null.

gdb/testsuite/ChangeLog
2020-01-19  Tom Tromey  <tom@tromey.com>

	* gdb.tui/main.exp: Add check for plain "file".

Change-Id: I8424acf837f1a47f75bc6a833d1e917d4c10b51e
2020-01-19 13:08:48 -07:00
Andrew Burgess 9a6d629ccf gdb/tui: Place window titles in the center of the border
In tui-wingeneral.c:box_win () a comment suggest we should display
titles like this:

  +-WINDOW TITLE GOES HERE-+

However, we actually display them like this:

  +--WINDOW TITLE GOES HERE+

The former seems nicer to me, so that's what this commit does.  Short
titles will appear as:

  +-SHORT TITLE------------+

We previously didn't test the horizontal windows borders in the test
suite, however, I've updated things so that we do now check for the
'+-' and '-+' on the upper border, this will give us some protection.

gdb/ChangeLog:

	* tui/tui-wingeneral.c (box_win): Position the title in the center
	of the border.

gdb/testsuite/ChangeLog:

	* lib/tuiterm.exp (Term::_check_box): Check some parts of the top
	border.

Change-Id: Iead6910e3b4e68bdf6871f861f23d2efd699faf0
2020-01-13 22:56:48 +00:00
Simon Marchi 6c2659886f gdb: add back declarations for _initialize functions
I'd like to enable the -Wmissing-declarations warning.  However, it
warns for every _initialize function, for example:

      CXX    dcache.o
    /home/smarchi/src/binutils-gdb/gdb/dcache.c: In function ‘void _initialize_dcache()’:
    /home/smarchi/src/binutils-gdb/gdb/dcache.c:688:1: error: no previous declaration for ‘void _initialize_dcache()’ [-Werror=missing-declarations]
     _initialize_dcache (void)
     ^~~~~~~~~~~~~~~~~~

The only practical way forward I found is to add back the declarations,
which were removed by this commit:

    commit 481695ed5f
    Author: John Baldwin <jhb@FreeBSD.org>
    Date:   Sat Sep 9 11:02:37 2017 -0700

        Remove unnecessary function prototypes.

I don't think it's a big problem to have the declarations for these
functions, but if anybody has a better solution for this, I'll be happy
to use it.

gdb/ChangeLog:

	* aarch64-fbsd-nat.c (_initialize_aarch64_fbsd_nat): Add declaration.
	* aarch64-fbsd-tdep.c (_initialize_aarch64_fbsd_tdep): Add declaration.
	* aarch64-linux-nat.c (_initialize_aarch64_linux_nat): Add declaration.
	* aarch64-linux-tdep.c (_initialize_aarch64_linux_tdep): Add declaration.
	* aarch64-newlib-tdep.c (_initialize_aarch64_newlib_tdep): Add declaration.
	* aarch64-tdep.c (_initialize_aarch64_tdep): Add declaration.
	* ada-exp.y (_initialize_ada_exp): Add declaration.
	* ada-lang.c (_initialize_ada_language): Add declaration.
	* ada-tasks.c (_initialize_tasks): Add declaration.
	* agent.c (_initialize_agent): Add declaration.
	* aix-thread.c (_initialize_aix_thread): Add declaration.
	* alpha-bsd-nat.c (_initialize_alphabsd_nat): Add declaration.
	* alpha-linux-nat.c (_initialize_alpha_linux_nat): Add declaration.
	* alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Add declaration.
	* alpha-nbsd-tdep.c (_initialize_alphanbsd_tdep): Add declaration.
	* alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Add declaration.
	* alpha-tdep.c (_initialize_alpha_tdep): Add declaration.
	* amd64-darwin-tdep.c (_initialize_amd64_darwin_tdep): Add declaration.
	* amd64-dicos-tdep.c (_initialize_amd64_dicos_tdep): Add declaration.
	* amd64-fbsd-nat.c (_initialize_amd64fbsd_nat): Add declaration.
	* amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Add declaration.
	* amd64-linux-nat.c (_initialize_amd64_linux_nat): Add declaration.
	* amd64-linux-tdep.c (_initialize_amd64_linux_tdep): Add declaration.
	* amd64-nbsd-nat.c (_initialize_amd64nbsd_nat): Add declaration.
	* amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Add declaration.
	* amd64-obsd-nat.c (_initialize_amd64obsd_nat): Add declaration.
	* amd64-obsd-tdep.c (_initialize_amd64obsd_tdep): Add declaration.
	* amd64-sol2-tdep.c (_initialize_amd64_sol2_tdep): Add declaration.
	* amd64-tdep.c (_initialize_amd64_tdep): Add declaration.
	* amd64-windows-nat.c (_initialize_amd64_windows_nat): Add declaration.
	* amd64-windows-tdep.c (_initialize_amd64_windows_tdep): Add declaration.
	* annotate.c (_initialize_annotate): Add declaration.
	* arc-newlib-tdep.c (_initialize_arc_newlib_tdep): Add declaration.
	* arc-tdep.c (_initialize_arc_tdep): Add declaration.
	* arch-utils.c (_initialize_gdbarch_utils): Add declaration.
	* arm-fbsd-nat.c (_initialize_arm_fbsd_nat): Add declaration.
	* arm-fbsd-tdep.c (_initialize_arm_fbsd_tdep): Add declaration.
	* arm-linux-nat.c (_initialize_arm_linux_nat): Add declaration.
	* arm-linux-tdep.c (_initialize_arm_linux_tdep): Add declaration.
	* arm-nbsd-nat.c (_initialize_arm_netbsd_nat): Add declaration.
	* arm-nbsd-tdep.c (_initialize_arm_netbsd_tdep): Add declaration.
	* arm-obsd-tdep.c (_initialize_armobsd_tdep): Add declaration.
	* arm-pikeos-tdep.c (_initialize_arm_pikeos_tdep): Add declaration.
	* arm-symbian-tdep.c (_initialize_arm_symbian_tdep): Add declaration.
	* arm-tdep.c (_initialize_arm_tdep): Add declaration.
	* arm-wince-tdep.c (_initialize_arm_wince_tdep): Add declaration.
	* auto-load.c (_initialize_auto_load): Add declaration.
	* auxv.c (_initialize_auxv): Add declaration.
	* avr-tdep.c (_initialize_avr_tdep): Add declaration.
	* ax-gdb.c (_initialize_ax_gdb): Add declaration.
	* bfin-linux-tdep.c (_initialize_bfin_linux_tdep): Add declaration.
	* bfin-tdep.c (_initialize_bfin_tdep): Add declaration.
	* break-catch-sig.c (_initialize_break_catch_sig): Add declaration.
	* break-catch-syscall.c (_initialize_break_catch_syscall): Add declaration.
	* break-catch-throw.c (_initialize_break_catch_throw): Add declaration.
	* breakpoint.c (_initialize_breakpoint): Add declaration.
	* bsd-uthread.c (_initialize_bsd_uthread): Add declaration.
	* btrace.c (_initialize_btrace): Add declaration.
	* charset.c (_initialize_charset): Add declaration.
	* cli/cli-cmds.c (_initialize_cli_cmds): Add declaration.
	* cli/cli-dump.c (_initialize_cli_dump): Add declaration.
	* cli/cli-interp.c (_initialize_cli_interp): Add declaration.
	* cli/cli-logging.c (_initialize_cli_logging): Add declaration.
	* cli/cli-script.c (_initialize_cli_script): Add declaration.
	* cli/cli-style.c (_initialize_cli_style): Add declaration.
	* coff-pe-read.c (_initialize_coff_pe_read): Add declaration.
	* coffread.c (_initialize_coffread): Add declaration.
	* compile/compile-cplus-types.c (_initialize_compile_cplus_types): Add declaration.
	* compile/compile.c (_initialize_compile): Add declaration.
	* complaints.c (_initialize_complaints): Add declaration.
	* completer.c (_initialize_completer): Add declaration.
	* copying.c (_initialize_copying): Add declaration.
	* corefile.c (_initialize_core): Add declaration.
	* corelow.c (_initialize_corelow): Add declaration.
	* cp-abi.c (_initialize_cp_abi): Add declaration.
	* cp-namespace.c (_initialize_cp_namespace): Add declaration.
	* cp-support.c (_initialize_cp_support): Add declaration.
	* cp-valprint.c (_initialize_cp_valprint): Add declaration.
	* cris-linux-tdep.c (_initialize_cris_linux_tdep): Add declaration.
	* cris-tdep.c (_initialize_cris_tdep): Add declaration.
	* csky-linux-tdep.c (_initialize_csky_linux_tdep): Add declaration.
	* csky-tdep.c (_initialize_csky_tdep): Add declaration.
	* ctfread.c (_initialize_ctfread): Add declaration.
	* d-lang.c (_initialize_d_language): Add declaration.
	* darwin-nat-info.c (_initialize_darwin_info_commands): Add declaration.
	* darwin-nat.c (_initialize_darwin_nat): Add declaration.
	* dbxread.c (_initialize_dbxread): Add declaration.
	* dcache.c (_initialize_dcache): Add declaration.
	* disasm-selftests.c (_initialize_disasm_selftests): Add declaration.
	* disasm.c (_initialize_disasm): Add declaration.
	* dtrace-probe.c (_initialize_dtrace_probe): Add declaration.
	* dummy-frame.c (_initialize_dummy_frame): Add declaration.
	* dwarf-index-cache.c (_initialize_index_cache): Add declaration.
	* dwarf-index-write.c (_initialize_dwarf_index_write): Add declaration.
	* dwarf2-frame-tailcall.c (_initialize_tailcall_frame): Add declaration.
	* dwarf2-frame.c (_initialize_dwarf2_frame): Add declaration.
	* dwarf2expr.c (_initialize_dwarf2expr): Add declaration.
	* dwarf2loc.c (_initialize_dwarf2loc): Add declaration.
	* dwarf2read.c (_initialize_dwarf2_read): Add declaration.
	* elfread.c (_initialize_elfread): Add declaration.
	* exec.c (_initialize_exec): Add declaration.
	* extension.c (_initialize_extension): Add declaration.
	* f-lang.c (_initialize_f_language): Add declaration.
	* f-valprint.c (_initialize_f_valprint): Add declaration.
	* fbsd-nat.c (_initialize_fbsd_nat): Add declaration.
	* fbsd-tdep.c (_initialize_fbsd_tdep): Add declaration.
	* filesystem.c (_initialize_filesystem): Add declaration.
	* findcmd.c (_initialize_mem_search): Add declaration.
	* findvar.c (_initialize_findvar): Add declaration.
	* fork-child.c (_initialize_fork_child): Add declaration.
	* frame-base.c (_initialize_frame_base): Add declaration.
	* frame-unwind.c (_initialize_frame_unwind): Add declaration.
	* frame.c (_initialize_frame): Add declaration.
	* frv-linux-tdep.c (_initialize_frv_linux_tdep): Add declaration.
	* frv-tdep.c (_initialize_frv_tdep): Add declaration.
	* ft32-tdep.c (_initialize_ft32_tdep): Add declaration.
	* gcore.c (_initialize_gcore): Add declaration.
	* gdb-demangle.c (_initialize_gdb_demangle): Add declaration.
	* gdb_bfd.c (_initialize_gdb_bfd): Add declaration.
	* gdbarch-selftests.c (_initialize_gdbarch_selftests): Add declaration.
	* gdbarch.c (_initialize_gdbarch): Add declaration.
	* gdbtypes.c (_initialize_gdbtypes): Add declaration.
	* gnu-nat.c (_initialize_gnu_nat): Add declaration.
	* gnu-v2-abi.c (_initialize_gnu_v2_abi): Add declaration.
	* gnu-v3-abi.c (_initialize_gnu_v3_abi): Add declaration.
	* go-lang.c (_initialize_go_language): Add declaration.
	* go32-nat.c (_initialize_go32_nat): Add declaration.
	* guile/guile.c (_initialize_guile): Add declaration.
	* h8300-tdep.c (_initialize_h8300_tdep): Add declaration.
	* hppa-linux-nat.c (_initialize_hppa_linux_nat): Add declaration.
	* hppa-linux-tdep.c (_initialize_hppa_linux_tdep): Add declaration.
	* hppa-nbsd-nat.c (_initialize_hppanbsd_nat): Add declaration.
	* hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Add declaration.
	* hppa-obsd-nat.c (_initialize_hppaobsd_nat): Add declaration.
	* hppa-obsd-tdep.c (_initialize_hppabsd_tdep): Add declaration.
	* hppa-tdep.c (_initialize_hppa_tdep): Add declaration.
	* i386-bsd-nat.c (_initialize_i386bsd_nat): Add declaration.
	* i386-cygwin-tdep.c (_initialize_i386_cygwin_tdep): Add declaration.
	* i386-darwin-nat.c (_initialize_i386_darwin_nat): Add declaration.
	* i386-darwin-tdep.c (_initialize_i386_darwin_tdep): Add declaration.
	* i386-dicos-tdep.c (_initialize_i386_dicos_tdep): Add declaration.
	* i386-fbsd-nat.c (_initialize_i386fbsd_nat): Add declaration.
	* i386-fbsd-tdep.c (_initialize_i386fbsd_tdep): Add declaration.
	* i386-gnu-nat.c (_initialize_i386gnu_nat): Add declaration.
	* i386-gnu-tdep.c (_initialize_i386gnu_tdep): Add declaration.
	* i386-go32-tdep.c (_initialize_i386_go32_tdep): Add declaration.
	* i386-linux-nat.c (_initialize_i386_linux_nat): Add declaration.
	* i386-linux-tdep.c (_initialize_i386_linux_tdep): Add declaration.
	* i386-nbsd-nat.c (_initialize_i386nbsd_nat): Add declaration.
	* i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Add declaration.
	* i386-nto-tdep.c (_initialize_i386nto_tdep): Add declaration.
	* i386-obsd-nat.c (_initialize_i386obsd_nat): Add declaration.
	* i386-obsd-tdep.c (_initialize_i386obsd_tdep): Add declaration.
	* i386-sol2-nat.c (_initialize_amd64_sol2_nat): Add declaration.
	* i386-sol2-tdep.c (_initialize_i386_sol2_tdep): Add declaration.
	* i386-tdep.c (_initialize_i386_tdep): Add declaration.
	* i386-windows-nat.c (_initialize_i386_windows_nat): Add declaration.
	* ia64-libunwind-tdep.c (_initialize_libunwind_frame): Add declaration.
	* ia64-linux-nat.c (_initialize_ia64_linux_nat): Add declaration.
	* ia64-linux-tdep.c (_initialize_ia64_linux_tdep): Add declaration.
	* ia64-tdep.c (_initialize_ia64_tdep): Add declaration.
	* ia64-vms-tdep.c (_initialize_ia64_vms_tdep): Add declaration.
	* infcall.c (_initialize_infcall): Add declaration.
	* infcmd.c (_initialize_infcmd): Add declaration.
	* inflow.c (_initialize_inflow): Add declaration.
	* infrun.c (_initialize_infrun): Add declaration.
	* interps.c (_initialize_interpreter): Add declaration.
	* iq2000-tdep.c (_initialize_iq2000_tdep): Add declaration.
	* jit.c (_initialize_jit): Add declaration.
	* language.c (_initialize_language): Add declaration.
	* linux-fork.c (_initialize_linux_fork): Add declaration.
	* linux-nat.c (_initialize_linux_nat): Add declaration.
	* linux-tdep.c (_initialize_linux_tdep): Add declaration.
	* linux-thread-db.c (_initialize_thread_db): Add declaration.
	* lm32-tdep.c (_initialize_lm32_tdep): Add declaration.
	* m2-lang.c (_initialize_m2_language): Add declaration.
	* m32c-tdep.c (_initialize_m32c_tdep): Add declaration.
	* m32r-linux-nat.c (_initialize_m32r_linux_nat): Add declaration.
	* m32r-linux-tdep.c (_initialize_m32r_linux_tdep): Add declaration.
	* m32r-tdep.c (_initialize_m32r_tdep): Add declaration.
	* m68hc11-tdep.c (_initialize_m68hc11_tdep): Add declaration.
	* m68k-bsd-nat.c (_initialize_m68kbsd_nat): Add declaration.
	* m68k-bsd-tdep.c (_initialize_m68kbsd_tdep): Add declaration.
	* m68k-linux-nat.c (_initialize_m68k_linux_nat): Add declaration.
	* m68k-linux-tdep.c (_initialize_m68k_linux_tdep): Add declaration.
	* m68k-tdep.c (_initialize_m68k_tdep): Add declaration.
	* machoread.c (_initialize_machoread): Add declaration.
	* macrocmd.c (_initialize_macrocmd): Add declaration.
	* macroscope.c (_initialize_macroscope): Add declaration.
	* maint-test-options.c (_initialize_maint_test_options): Add declaration.
	* maint-test-settings.c (_initialize_maint_test_settings): Add declaration.
	* maint.c (_initialize_maint_cmds): Add declaration.
	* mdebugread.c (_initialize_mdebugread): Add declaration.
	* memattr.c (_initialize_mem): Add declaration.
	* mep-tdep.c (_initialize_mep_tdep): Add declaration.
	* mi/mi-cmd-env.c (_initialize_mi_cmd_env): Add declaration.
	* mi/mi-cmds.c (_initialize_mi_cmds): Add declaration.
	* mi/mi-interp.c (_initialize_mi_interp): Add declaration.
	* mi/mi-main.c (_initialize_mi_main): Add declaration.
	* microblaze-linux-tdep.c (_initialize_microblaze_linux_tdep): Add declaration.
	* microblaze-tdep.c (_initialize_microblaze_tdep): Add declaration.
	* mips-fbsd-nat.c (_initialize_mips_fbsd_nat): Add declaration.
	* mips-fbsd-tdep.c (_initialize_mips_fbsd_tdep): Add declaration.
	* mips-linux-nat.c (_initialize_mips_linux_nat): Add declaration.
	* mips-linux-tdep.c (_initialize_mips_linux_tdep): Add declaration.
	* mips-nbsd-nat.c (_initialize_mipsnbsd_nat): Add declaration.
	* mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Add declaration.
	* mips-sde-tdep.c (_initialize_mips_sde_tdep): Add declaration.
	* mips-tdep.c (_initialize_mips_tdep): Add declaration.
	* mips64-obsd-nat.c (_initialize_mips64obsd_nat): Add declaration.
	* mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Add declaration.
	* mipsread.c (_initialize_mipsread): Add declaration.
	* mn10300-linux-tdep.c (_initialize_mn10300_linux_tdep): Add declaration.
	* mn10300-tdep.c (_initialize_mn10300_tdep): Add declaration.
	* moxie-tdep.c (_initialize_moxie_tdep): Add declaration.
	* msp430-tdep.c (_initialize_msp430_tdep): Add declaration.
	* nds32-tdep.c (_initialize_nds32_tdep): Add declaration.
	* nios2-linux-tdep.c (_initialize_nios2_linux_tdep): Add declaration.
	* nios2-tdep.c (_initialize_nios2_tdep): Add declaration.
	* nto-procfs.c (_initialize_procfs): Add declaration.
	* objc-lang.c (_initialize_objc_language): Add declaration.
	* observable.c (_initialize_observer): Add declaration.
	* opencl-lang.c (_initialize_opencl_language): Add declaration.
	* or1k-linux-tdep.c (_initialize_or1k_linux_tdep): Add declaration.
	* or1k-tdep.c (_initialize_or1k_tdep): Add declaration.
	* osabi.c (_initialize_gdb_osabi): Add declaration.
	* osdata.c (_initialize_osdata): Add declaration.
	* p-valprint.c (_initialize_pascal_valprint): Add declaration.
	* parse.c (_initialize_parse): Add declaration.
	* ppc-fbsd-nat.c (_initialize_ppcfbsd_nat): Add declaration.
	* ppc-fbsd-tdep.c (_initialize_ppcfbsd_tdep): Add declaration.
	* ppc-linux-nat.c (_initialize_ppc_linux_nat): Add declaration.
	* ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Add declaration.
	* ppc-nbsd-nat.c (_initialize_ppcnbsd_nat): Add declaration.
	* ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Add declaration.
	* ppc-obsd-nat.c (_initialize_ppcobsd_nat): Add declaration.
	* ppc-obsd-tdep.c (_initialize_ppcobsd_tdep): Add declaration.
	* printcmd.c (_initialize_printcmd): Add declaration.
	* probe.c (_initialize_probe): Add declaration.
	* proc-api.c (_initialize_proc_api): Add declaration.
	* proc-events.c (_initialize_proc_events): Add declaration.
	* proc-service.c (_initialize_proc_service): Add declaration.
	* procfs.c (_initialize_procfs): Add declaration.
	* producer.c (_initialize_producer): Add declaration.
	* psymtab.c (_initialize_psymtab): Add declaration.
	* python/python.c (_initialize_python): Add declaration.
	* ravenscar-thread.c (_initialize_ravenscar): Add declaration.
	* record-btrace.c (_initialize_record_btrace): Add declaration.
	* record-full.c (_initialize_record_full): Add declaration.
	* record.c (_initialize_record): Add declaration.
	* regcache-dump.c (_initialize_regcache_dump): Add declaration.
	* regcache.c (_initialize_regcache): Add declaration.
	* reggroups.c (_initialize_reggroup): Add declaration.
	* remote-notif.c (_initialize_notif): Add declaration.
	* remote-sim.c (_initialize_remote_sim): Add declaration.
	* remote.c (_initialize_remote): Add declaration.
	* reverse.c (_initialize_reverse): Add declaration.
	* riscv-fbsd-nat.c (_initialize_riscv_fbsd_nat): Add declaration.
	* riscv-fbsd-tdep.c (_initialize_riscv_fbsd_tdep): Add declaration.
	* riscv-linux-nat.c (_initialize_riscv_linux_nat): Add declaration.
	* riscv-linux-tdep.c (_initialize_riscv_linux_tdep): Add declaration.
	* riscv-tdep.c (_initialize_riscv_tdep): Add declaration.
	* rl78-tdep.c (_initialize_rl78_tdep): Add declaration.
	* rs6000-aix-tdep.c (_initialize_rs6000_aix_tdep): Add declaration.
	* rs6000-lynx178-tdep.c (_initialize_rs6000_lynx178_tdep):
	Add declaration.
	* rs6000-nat.c (_initialize_rs6000_nat): Add declaration.
	* rs6000-tdep.c (_initialize_rs6000_tdep): Add declaration.
	* run-on-main-thread.c (_initialize_run_on_main_thread): Add declaration.
	* rust-exp.y (_initialize_rust_exp): Add declaration.
	* rx-tdep.c (_initialize_rx_tdep): Add declaration.
	* s12z-tdep.c (_initialize_s12z_tdep): Add declaration.
	* s390-linux-nat.c (_initialize_s390_nat): Add declaration.
	* s390-linux-tdep.c (_initialize_s390_linux_tdep): Add declaration.
	* s390-tdep.c (_initialize_s390_tdep): Add declaration.
	* score-tdep.c (_initialize_score_tdep): Add declaration.
	* ser-go32.c (_initialize_ser_dos): Add declaration.
	* ser-mingw.c (_initialize_ser_windows): Add declaration.
	* ser-pipe.c (_initialize_ser_pipe): Add declaration.
	* ser-tcp.c (_initialize_ser_tcp): Add declaration.
	* ser-uds.c (_initialize_ser_socket): Add declaration.
	* ser-unix.c (_initialize_ser_hardwire): Add declaration.
	* serial.c (_initialize_serial): Add declaration.
	* sh-linux-tdep.c (_initialize_sh_linux_tdep): Add declaration.
	* sh-nbsd-nat.c (_initialize_shnbsd_nat): Add declaration.
	* sh-nbsd-tdep.c (_initialize_shnbsd_tdep): Add declaration.
	* sh-tdep.c (_initialize_sh_tdep): Add declaration.
	* skip.c (_initialize_step_skip): Add declaration.
	* sol-thread.c (_initialize_sol_thread): Add declaration.
	* solib-aix.c (_initialize_solib_aix): Add declaration.
	* solib-darwin.c (_initialize_darwin_solib): Add declaration.
	* solib-dsbt.c (_initialize_dsbt_solib): Add declaration.
	* solib-frv.c (_initialize_frv_solib): Add declaration.
	* solib-svr4.c (_initialize_svr4_solib): Add declaration.
	* solib-target.c (_initialize_solib_target): Add declaration.
	* solib.c (_initialize_solib): Add declaration.
	* source-cache.c (_initialize_source_cache): Add declaration.
	* source.c (_initialize_source): Add declaration.
	* sparc-linux-nat.c (_initialize_sparc_linux_nat): Add declaration.
	* sparc-linux-tdep.c (_initialize_sparc_linux_tdep): Add declaration.
	* sparc-nat.c (_initialize_sparc_nat): Add declaration.
	* sparc-nbsd-nat.c (_initialize_sparcnbsd_nat): Add declaration.
	* sparc-nbsd-tdep.c (_initialize_sparcnbsd_tdep): Add declaration.
	* sparc-obsd-tdep.c (_initialize_sparc32obsd_tdep): Add declaration.
	* sparc-sol2-tdep.c (_initialize_sparc_sol2_tdep): Add declaration.
	* sparc-tdep.c (_initialize_sparc_tdep): Add declaration.
	* sparc64-fbsd-nat.c (_initialize_sparc64fbsd_nat): Add declaration.
	* sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Add declaration.
	* sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Add declaration.
	* sparc64-linux-tdep.c (_initialize_sparc64_linux_tdep): Add declaration.
	* sparc64-nat.c (_initialize_sparc64_nat): Add declaration.
	* sparc64-nbsd-nat.c (_initialize_sparc64nbsd_nat): Add declaration.
	* sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Add declaration.
	* sparc64-obsd-nat.c (_initialize_sparc64obsd_nat): Add declaration.
	* sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Add declaration.
	* sparc64-sol2-tdep.c (_initialize_sparc64_sol2_tdep): Add declaration.
	* sparc64-tdep.c (_initialize_sparc64_adi_tdep): Add declaration.
	* stabsread.c (_initialize_stabsread): Add declaration.
	* stack.c (_initialize_stack): Add declaration.
	* stap-probe.c (_initialize_stap_probe): Add declaration.
	* std-regs.c (_initialize_frame_reg): Add declaration.
	* symfile-debug.c (_initialize_symfile_debug): Add declaration.
	* symfile-mem.c (_initialize_symfile_mem): Add declaration.
	* symfile.c (_initialize_symfile): Add declaration.
	* symmisc.c (_initialize_symmisc): Add declaration.
	* symtab.c (_initialize_symtab): Add declaration.
	* target.c (_initialize_target): Add declaration.
	* target-connection.c (_initialize_target_connection): Add
	declaration.
	* target-dcache.c (_initialize_target_dcache): Add declaration.
	* target-descriptions.c (_initialize_target_descriptions): Add declaration.
	* thread.c (_initialize_thread): Add declaration.
	* tic6x-linux-tdep.c (_initialize_tic6x_linux_tdep): Add declaration.
	* tic6x-tdep.c (_initialize_tic6x_tdep): Add declaration.
	* tilegx-linux-nat.c (_initialize_tile_linux_nat): Add declaration.
	* tilegx-linux-tdep.c (_initialize_tilegx_linux_tdep): Add declaration.
	* tilegx-tdep.c (_initialize_tilegx_tdep): Add declaration.
	* tracectf.c (_initialize_ctf): Add declaration.
	* tracefile-tfile.c (_initialize_tracefile_tfile): Add declaration.
	* tracefile.c (_initialize_tracefile): Add declaration.
	* tracepoint.c (_initialize_tracepoint): Add declaration.
	* tui/tui-hooks.c (_initialize_tui_hooks): Add declaration.
	* tui/tui-interp.c (_initialize_tui_interp): Add declaration.
	* tui/tui-layout.c (_initialize_tui_layout): Add declaration.
	* tui/tui-regs.c (_initialize_tui_regs): Add declaration.
	* tui/tui-stack.c (_initialize_tui_stack): Add declaration.
	* tui/tui-win.c (_initialize_tui_win): Add declaration.
	* tui/tui.c (_initialize_tui): Add declaration.
	* typeprint.c (_initialize_typeprint): Add declaration.
	* ui-style.c (_initialize_ui_style): Add declaration.
	* unittests/array-view-selftests.c (_initialize_array_view_selftests): Add declaration.
	* unittests/child-path-selftests.c (_initialize_child_path_selftests): Add declaration.
	* unittests/cli-utils-selftests.c (_initialize_cli_utils_selftests): Add declaration.
	* unittests/common-utils-selftests.c (_initialize_common_utils_selftests): Add declaration.
	* unittests/copy_bitwise-selftests.c (_initialize_copy_bitwise_utils_selftests): Add declaration.
	* unittests/environ-selftests.c (_initialize_environ_selftests): Add declaration.
	* unittests/filtered_iterator-selftests.c
	(_initialize_filtered_iterator_selftests): Add declaration.
	* unittests/format_pieces-selftests.c (_initialize_format_pieces_selftests): Add declaration.
	* unittests/function-view-selftests.c (_initialize_function_view_selftests): Add declaration.
	* unittests/help-doc-selftests.c (_initialize_help_doc_selftests): Add declaration.
	* unittests/lookup_name_info-selftests.c (_initialize_lookup_name_info_selftests): Add declaration.
	* unittests/main-thread-selftests.c
	(_initialize_main_thread_selftests): Add declaration.
	* unittests/memory-map-selftests.c (_initialize_memory_map_selftests): Add declaration.
	* unittests/memrange-selftests.c (_initialize_memrange_selftests): Add declaration.
	* unittests/mkdir-recursive-selftests.c (_initialize_mkdir_recursive_selftests): Add declaration.
	* unittests/observable-selftests.c (_initialize_observer_selftest): Add declaration.
	* unittests/offset-type-selftests.c (_initialize_offset_type_selftests): Add declaration.
	* unittests/optional-selftests.c (_initialize_optional_selftests): Add declaration.
	* unittests/parse-connection-spec-selftests.c (_initialize_parse_connection_spec_selftests): Add declaration.
	* unittests/rsp-low-selftests.c (_initialize_rsp_low_selftests): Add declaration.
	* unittests/scoped_fd-selftests.c (_initialize_scoped_fd_selftests): Add declaration.
	* unittests/scoped_mmap-selftests.c (_initialize_scoped_mmap_selftests): Add declaration.
	* unittests/scoped_restore-selftests.c (_initialize_scoped_restore_selftests): Add declaration.
	* unittests/string_view-selftests.c (_initialize_string_view_selftests): Add declaration.
	* unittests/style-selftests.c (_initialize_style_selftest): Add declaration.
	* unittests/tracepoint-selftests.c (_initialize_tracepoint_selftests): Add declaration.
	* unittests/tui-selftests.c (_initialize_tui_selftest): Add
	declaration.
	* unittests/unpack-selftests.c (_initialize_unpack_selftests): Add declaration.
	* unittests/utils-selftests.c (_initialize_utils_selftests): Add declaration.
	* unittests/vec-utils-selftests.c (_initialize_vec_utils_selftests): Add declaration.
	* unittests/xml-utils-selftests.c (_initialize_xml_utils): Add declaration.
	* user-regs.c (_initialize_user_regs): Add declaration.
	* utils.c (_initialize_utils): Add declaration.
	* v850-tdep.c (_initialize_v850_tdep): Add declaration.
	* valops.c (_initialize_valops): Add declaration.
	* valprint.c (_initialize_valprint): Add declaration.
	* value.c (_initialize_values): Add declaration.
	* varobj.c (_initialize_varobj): Add declaration.
	* vax-bsd-nat.c (_initialize_vaxbsd_nat): Add declaration.
	* vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Add declaration.
	* vax-tdep.c (_initialize_vax_tdep): Add declaration.
	* windows-nat.c (_initialize_windows_nat): Add declaration.
	(_initialize_check_for_gdb_ini): Add declaration.
	(_initialize_loadable): Add declaration.
	* windows-tdep.c (_initialize_windows_tdep): Add declaration.
	* x86-bsd-nat.c (_initialize_x86_bsd_nat): Add declaration.
	* x86-linux-nat.c (_initialize_x86_linux_nat): Add declaration.
	* xcoffread.c (_initialize_xcoffread): Add declaration.
	* xml-support.c (_initialize_xml_support): Add declaration.
	* xstormy16-tdep.c (_initialize_xstormy16_tdep): Add declaration.
	* xtensa-linux-nat.c (_initialize_xtensa_linux_nat): Add declaration.
	* xtensa-linux-tdep.c (_initialize_xtensa_linux_tdep): Add declaration.
	* xtensa-tdep.c (_initialize_xtensa_tdep): Add declaration.

Change-Id: I13eec7e0ed2b3c427377a7bdb055cf46da64def9
2020-01-13 14:01:38 -05:00
Tom Tromey 7c392d1de1 Make TUI borders respect "set style enabled"
When adding support for styling the TUI borders, I neglected to have
this code check cli_styling.  As a result, "set style enabled off"
does not affect the borders.

This patch fixes this oversight.  While doing this, I found that
running gdb without an executable, enabling the TUI, and then trying
"set style enabled off" would fail with the mysterious "No registers".
The fix for this is to use deprecated_safe_get_selected_frame in
tui_source_window_base::refill.

gdb/ChangeLog
2020-01-11  Tom Tromey  <tom@tromey.com>

	* tui/tui-wingeneral.c (box_win): Check cli_styling.
	* tui/tui-winsource.c (tui_source_window_base::refill): Use
	deprecated_safe_get_selected_frame.

Change-Id: I36acda25dd9014d994d366b4a0e8faee9d95d0f8
2020-01-11 12:24:03 -07:00
Andrew Burgess f5a7c406b1 gdb/tui: Link source and assembler scrolling .... again
Until recently when the source window was scrolled the assembler
window would scroll in sync - keeping the disassembly for the current
line in view.

This was broken in commit:

  commit b4b49dcbff
  Date:   Wed Nov 13 16:47:58 2019 -0700

      Don't call tui_show_source from tui_ui_out

This commit restores the synchronised scrolling and also maintains the
horizontal scroll within the source view when it is vertically
scrolled, something that was broken before.

This commit does not mean that scrolling the assembler view scrolls
the source view.  The connection this way never existed, though maybe
it should, but I'll leave adding this feature for a separate commit.

gdb/ChangeLog:

	* tui/tui-source.c (tui_source_window::do_scroll_vertical): Update
	all source windows, and maintain horizontal scroll status while
	doing so.

gdb/testsuite/ChangeLog:

	* gdb.tui/basic.exp: Add more scrolling tests.

Change-Id: I250114a3bc670040a6a759d41905776771b2f818
2020-01-09 23:11:47 +00:00
Tom Tromey 9ae6bf640d gdb: Fix scrolling in TUI
Hannes Domani pointed out that my previous patch to fix the "list"
command in the TUI instead broke vertical scrolling.  While looking at
this, I found that do_scroll_vertical calls print_source_lines, which
seems like a very roundabout way to change the source window.  This
patch removes this oddity and fixes the bug at the same time.

I've added a new test case.  This is somewhat tricky, because the
obvious approach of sending a dummy command after the scroll did not
work -- due to how the TUI works, sennding a command causes the scroll
to take effect.

gdb/ChangeLog
2019-12-22  Tom Tromey  <tom@tromey.com>

	PR tui/18932:
	* tui/tui-source.c (tui_source_window::do_scroll_vertical): Call
	update_source_window, not print_source_lines.

gdb/testsuite/ChangeLog
2019-12-22  Tom Tromey  <tom@tromey.com>

	PR tui/18932:
	* lib/tuiterm.exp (Term::wait_for): Rename from _accept.  Return a
	meangingful value.
	(Term::command, Term::resize): Update.
	* gdb.tui/basic.exp: Add scrolling test.

Change-Id: I9636a7c8a8cade37431c6165ee996a9d556ef1c8
2020-01-09 23:11:46 +00:00
Andrew Burgess b2efe70cf3 gdb/tui: Fix 'layout asm' before the inferior has started
Currently if a user starts the tui with 'layout asm' then they will be
presented with the 'src' layout.

What happens is:

  1. Layout command enables TUI, selecting the SRC layout by default.

  2. As part of tui_enable we call tui_display_main, which calls
     tui_get_begin_asm_address, which calls
     set_default_source_symtab_and_line.  This changes core GDBs
     current symtab and line, which triggers a call to the symtab
     changed hook tui_symtab_changed, which sets the flag
     from_source_symtab.

  3. Back in the layout command, the layout is changed from SRC to
     ASM.  After this the layout command completes and we return to
     core GDB which prints the prompt, however...

  4. The before prompt hook is called which sees the
     from_source_symtab flag is set and forces the SRC window to be
     displayed.  This switches us back to SRC view.

The solution I propose here is to delay installing the hooks into core
GDB until after we have finished setting up the tui and selecting the
default frame to view.  In this way we effectively ignore the first
symtab changed event triggered when making main the default symtab.

gdb/ChangeLog:

	* tui/tui.c (tui_enable): Register tui hooks after calling
	tui_display_main.

gdb/testsuite/ChangeLog:

	* gdb.tui/tui-layout-asm.exp: New file.

Change-Id: I858ab81a17ffb4aa72deb3f36c3755228a9c9d9a
2020-01-09 23:11:45 +00:00
Shahab Vahedi cbfa858117 GDB: Fix the overflow in addr/line_is_displayed()
In tui_disasm_window::addr_is_displayed(), there can be situations
where "content" is empty. For instance, it can happen when the
"content" was not filled in tui_disasm_window::set_contents(),
because tui_disassemble() threw an exception. Usually this exception
is the result of fetching invalid PC addresses like the ones beyond
the end of the program.

Having "content.size ()" zero leads to an overflow in this condition
check inside tui_disasm_window::addr_is_displayed():

  int i = 0;
  while (i < content.size () - threshold ...) {
    ... content[i] ...
  }

"threshold" is 2 and there are times that "content.size ()" is 0.
This results into an overflow and the loop is entered whereas it
should have been skipped. Finally, "content[i]" access leads to
a segmentation fault.

Same problem applies to tui_source_window::line_is_displayed().

The issue has been discussed at length in bug 25345:
  https://sourceware.org/bugzilla/show_bug.cgi?id=25345

This commit avoids the segmentation faults with an early check:

  if (content.size () < SCROLL_THRESHOLD)
    return false;

Moreover, those functions have been overhauled to a leaner code.

gdb/ChangeLog:
2020-01-06  Shahab Vahedi  <shahab@synopsys.com>

	* tui/tui-disasm.c (tui_disasm_window::addr_is_displayed): Avoid
	overflow by an early check of content vs threshold.
        * tui/tui-source.c (tui_source_window::line_is_displayed):
	Likewise.
2020-01-06 19:47:20 +00:00
Shahab Vahedi a61b4f6997 GDB: Remove trailing spaces in tui-disasm.c
A few trailing spaces are removed.

gdb/ChangeLog:
2020-01-06  Shahab Vahedi  <shahab@synopsys.com>

	* tui/tui-disasm.c: Remove trailing spaces.
2020-01-06 13:43:46 +00:00
Andrew Burgess f2302a34f2 gdb: use tui_set_layout not show_layout to fix window focus
When calling tui_add_win_to_layout, use tui_set_layout not show_layout
so that window focus is correctly updated.  If the focus is not
correctly maintained then GDB can be crashed like this:

  start
  tui enable
  layout asm
  list SOME_FUNCTION

At this point GDB will have "popped up" the source window to
display SOME_FUNCTION.  Previously no window would have focus at this
point, and so if the user now does 'focus next' or 'focus prev', then
GDB would crash.

Calling tui_set_layout ensures that focus is correctly calculated as
the source window is "popped up", and this fixes the issue.

gdb/ChangeLog:

	* tui/tui-layout.c (tui_add_win_to_layout): Use tui_set_layout not
	show_layout.

gdb/testsuite/ChangeLog:

	* gdb.tui/list.exp: Test 'focus next' after 'list main'.

Change-Id: Id0b13f99b0e889261efedfd0adabe82020202f44
2020-01-05 21:49:05 +00:00
Joel Brobecker b811d2c292 Update copyright year range in all GDB files.
gdb/ChangeLog:

        Update copyright year range in all GDB files.
2020-01-01 10:20:53 +04:00
Tom Tromey 3d34df0aa7 Make some TUI globals "static"
This changes a few TUI globals to be "static".  Tested by rebuilding.

gdb/ChangeLog
2019-12-30  Tom Tromey  <tom@tromey.com>

	* tui/tui-win.c (tui_border_mode_translate)
	(tui_border_kind_translate_vline, tui_border_kind_translate_hline)
	(tui_border_kind_translate_ulcorner)
	(tui_border_kind_translate_urcorner)
	(tui_border_kind_translate_llcorner)
	(tui_border_kind_translate_lrcorner, tui_active_border_mode)
	(tui_border_mode, tui_border_kind): Now static.

Change-Id: Ibb49a0df195dfe780a5ba1f90e9125ab5f6b7ce1
2019-12-30 09:11:32 -07:00
Tom Tromey 87d557ae1b Use "bool" in more spots in TUI
This changes a few spots in the TUI to use "bool" rather than "int".
Tested on x86-64 Fedora 28.

gdb/ChangeLog
2019-12-30  Tom Tromey  <tom@tromey.com>

	* tui/tui-interp.c (tui_start_enabled): Now bool.
	(_initialize_tui_interp): Update.
	* tui/tui-hooks.c (tui_refreshing_registers): Now bool.
	(tui_register_changed)
	(tui_refresh_frame_and_register_information): Update.
	* tui/tui-win.c (tui_update_variables): Return bool.
	* tui/tui-win.h (tui_update_variables): Return bool.
	* tui/tui.c (tui_get_command_dimension): Return bool.
	* tui/tui.h (tui_get_command_dimension): Return bool.

Change-Id: I55b7f2d62d2ef88da3587dc914ada9f463ad8d2b
2019-12-30 09:07:33 -07:00
Tom Tromey ace206a5a5 Remove dead code from TUI
I found some dead code in the TUI -- some using #if 0, and some
commented-out code.  There's no reason to keep this, so this patch
removes it.

gdb/ChangeLog
2019-12-27  Tom Tromey  <tom@tromey.com>

	* tui/tui-source.c (tui_source_window::do_scroll_vertical): Remove
	commented-out code.
	* tui/tui.c: Remove #if 0 code.

Change-Id: Ie00933b2ba498417ce22e5da3f62f5a40c234f33
2019-12-27 09:44:34 -07:00
Tom Tromey a1e4dee435 Change tui_active to bool
This changes tui_active and tui_finish_init to have type "bool".

gdb/ChangeLog
2019-12-27  Tom Tromey  <tom@tromey.com>

	* tui/tui.c (tui_active): Now bool.
	(tui_finish_init): Likewise.
	(tui_enable): Update.
	(tui_disable): Update.
	(tui_is_window_visible): Update.
	* tui/tui.h (tui_active): Now bool.

Change-Id: Ia159ae9beb041137e34956b77f5bcf4e83eaf2b9
2019-12-27 09:33:36 -07:00