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Currently, the behaviour is:
(gdb) show style
(gdb) set style
(gdb) show style address
(gdb) set style address
(gdb)
With this patch, the behaviour is:
(gdb) show style
style address background: The "address" background color is: none
style address foreground: The "address" foreground color is: blue
style address intensity: The "address" display intensity is: normal
enabled: CLI output styling is enabled.
style filename background: The "filename" background color is: none
style filename foreground: The "filename" foreground color is: green
style filename intensity: The "filename" display intensity is: normal
style function background: The "function" background color is: none
style function foreground: The "function" foreground color is: yellow
style function intensity: The "function" display intensity is: normal
style variable background: The "variable" background color is: none
style variable foreground: The "variable" foreground color is: cyan
style variable intensity: The "variable" display intensity is: normal
(gdb) set style
"set style" must be followed by an appropriate subcommand.
List of set style subcommands:
set style address -- Address display styling
set style enabled -- Set whether CLI styling is enabled
set style filename -- Filename display styling
set style function -- Function name display styling
set style variable -- Variable name display styling
Type "help set style" followed by set style subcommand name for full documentation.
Type "apropos word" to search for commands related to "word".
Command name abbreviations are allowed if unambiguous.
(gdb) show style address
background: The "filename" background color is: none
foreground: The "filename" foreground color is: green
intensity: The "filename" display intensity is: normal
(gdb) set style address
List of set style address subcommands:
set style address background -- Set the background color for this property
set style address foreground -- Set the foreground color for this property
set style address intensity -- Set the display intensity color for this property
Type "help set style address" followed by set style address subcommand name for full documentation.
Type "apropos word" to search for commands related to "word".
Command name abbreviations are allowed if unambiguous.
(gdb)
gdb/ChangeLog
* cli/cli-style.h (class cli_style_option): <add_setshow_commands>
Remove arg prefixname, add do_set and do_show.
Add member functions set_list and show_list.
* cli/cli-style.c (class cli_style_option): Update accordingly.
(style_set_list): Move to file scope.
(style_show_list): Likewise.
(set_style): Call help_list.
(show_style): Call cmd_show_list.
(_initialize_cli_style): New macro STYLE_ADD_SETSHOW_COMMANDS.
Update to use the new macro.
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This commit applies all changes made after running the gdb/copyright.py
script.
Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.
gdb/ChangeLog:
Update copyright year range in all GDB files.
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The layout for 'help set address|variable' is strange, e.g.:
(gdb) help set style address
style address
List of show Address display styling
Configure address colors and display intensity subcommands:
show Address display styling
Configure address colors and display intensity background -- Set the background color for this property
show Address display styling
Configure address colors and display intensity foreground -- Set the foreground color for this property
show Address display styling
Configure address colors and display intensity intensity -- Set the display intensity color for this property
Type "help show Address display styling
Configure address colors and display intensity" followed by show Address display styling
Configure address colors and display intensity subcommand name for full documentation.
Type "apropos word" to search for commands related to "word".
Command name abbreviations are allowed if unambiguous.
(gdb)
The help for 'set style function|filename' gives help for 'Show':
(gdb) help set style filename
Filename display styling
Configure filename colors and display intensity.
List of show style filename subcommands:
show style filename background -- Set the background color for this property
show style filename foreground -- Set the foreground color for this property
show style filename intensity -- Set the display intensity color for this property
The help for 'show style function|filename' is equally strange, as it speaks
about commands, instead of sub commands:
(gdb) help show style filename
Filename display styling
Configure filename colors and display intensity.
List of commands:
background -- Show the background color for this property
foreground -- Show the foreground color for this property
intensity -- Show the display intensity color for this property
Type "help" followed by command name for full documentation.
Type "apropos word" to search for commands related to "word".
Command name abbreviations are allowed if unambiguous.
(gdb)
This patch fixes all this.
Note that the 'set style' and 'show style' have the same prefix_doc:
(gdb) help show style
Style-specific settings
Configure various style-related variables, such as colors
...
(gdb) help set style
Style-specific settings
Configure various style-related variables, such as colors
...
Other similar commands (such as set|show history) have typically
a more specific prefix:
(gdb) help show history
Generic command for showing command history parameters.
...
(gdb) help set history
Generic command for setting command history parameters.
...
This could be fixed by having set_prefix_doc and show_prefix_doc instead of
the single prefix_doc argument to cli_style_option::add_setshow_commands.
That could be improved if deemed better.
2018-12-29 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* cli/cli-style.c (cli_style_option::add_setshow_commands):
Initialize m_set_prefix with "set", instead of re-assigning
m_show_prefix. Use m_set_prefix for set_list and m_show_prefix
for show_list.
(_initialize_cli_style): Correct the order of arguments in
variable_name_style.add_setshow_commands and
address_style.add_setshow_commands calls.
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This changes gdb to highlight source using GNU Source Highlight, if it
is available.
This affects the output of the "list" command and also the TUI source
window.
No new test because I didn't see a way to make it work when Source
Highlight is not found.
gdb/ChangeLog
2018-12-28 Tom Tromey <tom@tromey.com>
* utils.h (can_emit_style_escape): Declare.
* utils.c (can_emit_style_escape): No longer static.
* cli/cli-style.c (set_style_enabled): New function.
(_initialize_cli_style): Use it.
* tui/tui-winsource.c (tui_show_source_line): Use tui_puts.
(tui_alloc_source_buffer): Change how source lines are allocated.
* tui/tui-source.c (copy_source_line): New function.
(tui_set_source_content): Use source cache.
* tui/tui-io.h (tui_puts): Update.
* tui/tui-io.c (tui_puts_internal): Add window parameter.
(tui_puts): Likewise.
(tui_redisplay_readline): Update.
* tui/tui-data.c (free_content_elements): Change how source window
contents are freed.
* source.c (forget_cached_source_info): Clear the source cache.
(print_source_lines_base): Use the source cache.
* source-cache.h: New file.
* source-cache.c: New file.
* configure.ac: Check for GNU Source Highlight library.
* configure: Update.
* config.in: Update.
* Makefile.in (SRCHIGH_LIBS, SRCHIGH_CFLAGS): New variables.
(INTERNAL_CFLAGS_BASE): Add SRCHIGH_CFLAGS.
(CLIBS): Add SRCHIGH_LIBS.
(COMMON_SFILES): Add source-cache.c.
(HFILES_NO_SRCDIR): Add source-cache.h.
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This changes gdb to style addresses.
gdb/ChangeLog
2018-12-28 Tom Tromey <tom@tromey.com>
* ui-out.h (enum class ui_out_style_kind) <ADDRESS>: New
constant.
* ui-out.c (ui_out::field_core_addr): Add styling.
* stack.c (print_frame): Add styling.
* printcmd.c (print_address): Add styling.
(print_address_demangle, info_address_command): Likewise.
* cli/cli-style.h (address_style): Declare.
* cli/cli-style.c (address_style): New global.
(_initialize_cli_style): Register new commands.
* cli-out.c (cli_ui_out::do_field_string): Update.
gdb/testsuite/ChangeLog
2018-12-28 Tom Tromey <tom@tromey.com>
* gdb.base/style.exp: Update test to check for address styling.
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This adds style support for variable names. For the time being, this
is only done in backtraces, not in ptype or print; those places do not
use ui-out and so would need ad hoc changes.
This also adds styling to the names printed for local variables in
"backtrace full". This code does not use ui-out, so the styling is
done using the low-level API.
gdb/ChangeLog
2018-12-28 Tom Tromey <tom@tromey.com>
* ui-out.h (enum class ui_out_style_kind) <VARIABLE>: New global.
* stack.c (print_frame_arg): Style name.
* printcmd.c (print_variable_and_value): Style variable name.
* cli/cli-style.h (variable_name_style): Declare.
* cli/cli-style.c (variable_name_style): New global.
(_initialize_cli_style): Update.
* cli-out.c (cli_ui_out::do_field_string): Update.
gdb/testsuite/ChangeLog
2018-12-28 Tom Tromey <tom@tromey.com>
* gdb.base/style.exp: Add test for variable names.
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This adds some output styling to the CLI.
A style is currently a foreground color, a background color, and an
intensity (dim or bold). (This list could be expanded depending on
terminal capabilities.)
A style can be applied while printing. For ui-out, this is done by
passing the style constant as an argument. For low-level cases,
fprintf_styled and fputs_styled are provided.
Users can control the style via a number of new set/show commands. In
the interest of not typing many nearly-identical documentation
strings, I automated this. On the down side, this is not very
i18n-friendly.
I've chose some default colors to use. I think it would be good to
enable this by default, so that when users start the new gdb, they
will see the new feature.
Stylizing is done if TERM is set and is not "dumb". This could be
improved when the TUI is available by using the curses has_colors
call. That is, the lowest layer could call this without committing to
using curses everywhere; see my other patch for TUI colorizing.
I considered adding a new "set_style" method to ui_file. However,
because the implementation had to interact with the pager code, I
didn't take this approach. But, one idea might be to put the isatty
check there and then have it defer to the lower layers.
gdb/ChangeLog
2018-12-28 Tom Tromey <tom@tromey.com>
* utils.h (set_output_style, fprintf_styled)
(fputs_styled): Declare.
* utils.c (applied_style, desired_style): New globals.
(emit_style_escape, set_output_style): New function.
(prompt_for_continue): Emit style escapes.
(fputs_maybe_filtered): Likewise.
(fputs_styled, fprintf_styled): New functions.
* ui-out.h (enum class ui_out_style_kind): New.
(class ui_out) <field_string, field_stream, do_field_string>: Add
style parameter.
* ui-out.c (ui_out::field_stream, ui_out::field_string): Add style
parameter.
* tui/tui-out.h (class tui_ui_out) <do_field_string>: Add style
parameter.
* tui/tui-out.c (tui_ui_out::do_field_string): Add style
parameter.
(tui_ui_out::do_field_string): Update.
* tracepoint.c (print_one_static_tracepoint_marker): Style
output.
* stack.c (print_frame_info, print_frame): Style output.
* source.c (print_source_lines_base): Style output.
* skip.c (info_skip_command): Style output.
* record-btrace.c (btrace_call_history_src_line): Style output.
(btrace_call_history): Likewise.
* python/py-framefilter.c (py_print_frame): Style output.
* mi/mi-out.h (class mi_ui_out) <do_field_string>: Add style
parameter.
* mi/mi-out.c (mi_ui_out::do_table_header)
(mi_ui_out::do_field_int): Update.
(mi_ui_out::do_field_string): Update.
* disasm.c (gdb_pretty_print_disassembler::pretty_print_insn):
Style output.
* cli/cli-style.h: New file.
* cli/cli-style.c: New file.
* cli-out.h (class cli_ui_out) <do_field_string>: Add style
parameter.
* cli-out.c (cli_ui_out::do_table_header)
(cli_ui_out::do_field_int, cli_ui_out::do_field_skip): Update.
(cli_ui_out::do_field_string): Add style parameter. Style the
output.
* breakpoint.c (print_breakpoint_location): Style output.
(update_static_tracepoint): Likewise.
* Makefile.in (SUBDIR_CLI_SRCS): Add cli-style.c.
(HFILES_NO_SRCDIR): Add cli-style.h.
gdb/testsuite/ChangeLog
2018-12-28 Tom Tromey <tom@tromey.com>
* gdb.base/style.exp: New file.
* gdb.base/style.c: New file.
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