You can always leave or enter TUI at any time durring debug session. For example you can do it with ctrl+x a key binding. 25.2 TUI Key Bindings.
Answer from ks1322 on Stack Overflow Top answer 1 of 2
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You can always leave or enter TUI at any time durring debug session. For example you can do it with ctrl+x a key binding. 25.2 TUI Key Bindings.
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vi Readline input bug
In GDB 7.7, Ctrl-x + a does not work if you have in your ~/.inputrc:
set editing-mode vi
set keymap vi
If I remove those lines it works.
This seems to be mentioned at in the following bug report: https://sourceware.org/bugzilla/show_bug.cgi?id=15163
I have requested a workaround at https://sourceware.org/ml/gdb/2015-06/msg00009.html and Andrew Burgess replied that he had just submitted a well received patch to add:
tui enable
tui disable
so in future versions we should have commands as an alternative to the shortcuts.
I have later tested this on GDB 8.1 in Ubuntu 18.04 and it worked perfectly.
But then I saw the light and moved from TUI to GDB Dashboard: https://github.com/cyrus-and/gdb-dashboard which is simply more powerful and less buggy.
See also: http://superuser.com/questions/180512/how-to-turn-off-gdb-tui
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You can enter / leave the TUI mode with one of this combinations:
- C-x C-a
- C-x a
- C-x A
This is typically (no need to lift the Ctrl key):
- Ctrl + X + A
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Because of the bug Ulerich mentioned which breaks the mappings if you have vi mode in your .inputrc, I have requested a workaround here and Andrew Burgess replied that he had just submitted a well received patch to add:
tui enable
tui disable
So in future versions we should have commands as an alternative to the shortcuts.
I have later tested this on GDB 8.1 in Ubuntu 18.04 and it worked perfectly.
But then I saw the light and moved from TUI to GDB Dashboard which is simply more powerful and less buggy.
See also: https://stackoverflow.com/questions/8409540/how-to-close-layout-src-windows-in-gdb
GNU Project
sourceware.org › gdb › current › onlinedocs › gdb.html › TUI-Commands.html
TUI Commands (Debugging with GDB)
Note that if GDB’s stdout is not connected to a terminal, or GDB has been started with the machine interface interpreter (see The GDB/MI Interface), most of these commands will fail with an error, because it would not be possible or desirable to enable curses window management. ... Activate TUI mode. The last active TUI window layout will be used if TUI mode has previously been used in the current debugging session, otherwise a default layout is used.
GNU
ftp.gnu.org › old-gnu › Manuals › gdb › html_chapter › gdb_19.html
Debugging with GDB - GDB Text User Interface
The TUI installs several key bindings in the readline keymaps (see section Command Line Editing). They allow to leave or enter in the TUI mode or they operate directly on the TUI layout and windows. The following key bindings are installed for both TUI mode and the GDB standard mode.
GitHub
gist.github.com › savanovich › eb6ee6b264e773968e71
GDB cheatsheet · GitHub
(gdb) x/20x $rsp-20 0x7fffffffe800: 0x00000000 0x00000000 0x00000000 0x00000000 0x7fffffffe810: 0x00000000 0x00000000 0x00000000 0x00000000 0x7fffffffe820: 0x439d1463 0x00000000 0x00000000 0x00000000 0x7fffffffe830: 0x004000c2 0x00000000 0x0000000a 0x00000000 0x7fffffffe840: 0x00000001 0x00000000 0xffffeb0f 0x00007fff
Brown
cs.brown.edu › courses › cs033 › docs › guides › gdb.pdf pdf
CSCI0330 Intro Computer Systems Doeppner gdb Cheatsheet Fall 2018
Quits gdb. ... layout is a terminal interface which allows the user to view the source file while debugging.
USC CS and ECE
bytes.usc.edu › cs104 › wiki › gdb
GDB Cheat Sheet
Note: function breakpoints will not work on functions that take strings as arguments (it’s complicated) on your course VM due to an incompatibility between GCC and GDB. However, this will work properly on newer systems. layout next From the begining of GDB, entering ‘layout next’ once ...
GNU
gnu.org › software › emacs › manual › html_node › emacs › GDB-User-Interface-Layout.html
GDB User Interface Layout (GNU Emacs Manual)
A separate frame for GDB sessions ... at a premium. If you choose to start GDB in the same frame, consider setting gdb-restore-window-configuration-after-quit to a non-nil value. Your original layout will then be restored after GDB quits....
Apple Developer
developer.apple.com › library › archive › documentation › DeveloperTools › gdb › gdb › gdb_23.html
Debugging with gdb - gdb Text User Interface
The TUI installs several key bindings in the readline keymaps (see section Command Line Editing). They allow to leave or enter in the TUI mode or they operate directly on the TUI layout and windows. The TUI also provides a SingleKey keymap which binds several keys directly to GDB commands.
Reddit
reddit.com › r/c_programming › does anyone use gdb without the tui? if so, how? what are the use cases for not using the tui?
r/C_Programming on Reddit: Does anyone use GDB without the TUI? If so, how? What are the use cases for not using the TUI?
June 17, 2022 -
I’ve typically only used my IDE’s native debugger, but I’ve switched to GDB predominately now.
By default, there is no TUI, I need to specify with —tui
I can’t really justify it? Even if I’m using GDB’s Python interpreter or looking at local variables.
Top answer 1 of 11
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I didn't even know it had a 'TUI'. So no, I never use the tui when using gdb.
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I've never liked using GDB's TUI, so I always use the command interface. My typical workflow on all platforms is a vertically-maximized Vim window and a vertically maximized terminal window. The terminal runs a long-term GDB session exclusively, with file set to the program I'm writing, usually set by initial the command line. $ gdb myprogram gdb> Alternatively use file after starting GDB. Occasionally useful if my project has multiple binaries, and I want to examine a different program. gdb> file myprogram I use make and Vim's :mak command for building from within the editor, so I don't need to change context just to build. The quickfix list takes me straight to warnings/errors. Often I'm writing something that takes input from standard input. So I use the run (r) command to set this up (along with any command line arguments). gdb> r r My usual workflow is edit, :mak, r, repeat. If I want to test a different input or use different options, change the run configuration using run again: gdb> r -x -b k GDB has an annoying, flow-breaking yes/no prompt for this, so I suggest set confirm no in your .gdbinit to disable it. Sometimes the program is stuck in a loop and I just want it to stop. I avoid CTRL-C since it can confuse GDB (another GDB issue), so I'll stop it from Vim with pkill: :!pkill myprogram On that note, you can run commands from GDB with !, which is another way to avoid having an extra terminal window open: gdb> !rm myprogram.o In any case, GDB will re-read the binary on the next run and update breakpoints, so it's mostly seamless. If there's a function I want to look at I set a breakpoint on it, then run. gdb> b somefunc gdb> r Alternatively use a line number, which I read from Vim. Though, note, unlike a typical GUI debugger, GDB cannot track how that line moves between builds. An empty command repeats the last command, so once I'm at a break point, I'll type next (n), then press enter each time I want to advance a line, often with my eye on the context in Vim in the other window (an area where the TUI helps, but GDB could overall be better). gdb> n gdb> gdb> If I want to advance to the next breakpoint, I use continue (c): gdb> c If I'm walking through a loop, I want to see how variables change, but it's tedious to keep printing (p) the same variables again and again. So I use display (disp) to display an expression with each prompt, much like the "watch" window in Visual Studio. For example, if my loop variable is i over some string str, this will show me the current character in character format (/c). gdb> disp/c str[i] You can add multiple expressions like this. Use undisplay to remove them. Too many breakpoints? Use info breakpoints (i b) to list them, then delete (d) the unwanted ones by ID. gdb> i b gdb> d 3 5 8 Ultimately that's just 9 GDB commands to cover 99% of use cases: r, c, n, disp, k, b, i, d, p. Some extra debugging notes: GDB doesn't break on "signals" on Windows, and by default MSVCRT abort (including abort-calling features like assert and -ftrapv) is just raise(SIGABRT) which isn't trapped. There are a couple workarounds, but the most expedient is to set a breakpoint on abort. My favorite related tool is __builtin_trap() since it simply inserts a trap instruction, so you don't have a bunch of junk stack frames in the way while debugging (glibc and libsanitizer are terrible about this). On all platforms, ASan doesn't break GDB on error, which is a serious annoyance. Fortunately you can work around this, too, with an environment variable (also here cutting out some of the noise): export ASAN_OPTIONS=abort_on_error=1:print_legend=0 Similarly, with UBSan you can use -fsanitize-undefined-trap-on-error. With these required workarounds, you'd think libsanitizer wasn't intended to be used with debuggers!
GitHub
github.com › bet4it › hyperpwn › issues › 16
Exiting the hyperpwn layout on gdb (pwndbg, gef, etc) exit · Issue #16 · bet4it/hyperpwn
December 16, 2023 - So I've been looking in both hyperpwn and hyperinators pages and I can't seem to find a way that gracefully exits the layout without having to manually close all of the panes. Is there a hotkey somewhere or a way to configure a graceful exit of the layout on pwndbg/gdb exit?
Published Dec 16, 2023
GNU Project
sourceware.org › gdb › current › onlinedocs › gdb.html › TUI-Keys.html
TUI Keys (Debugging with GDB)
When leaving the TUI mode, the curses window management stops and GDB operates using its standard mode, writing on the terminal directly. When reentering the TUI mode, control is given back to the curses windows. The screen is then refreshed. This key binding uses the bindable Readline function tui-switch-mode. ... Use a TUI layout with only one window.
DEV Community
dev.to › irby › making-gdb-easier-the-tui-interface-15l2
Making GDB Easier: The TUI Interface - DEV Community
August 28, 2024 - Once the program has started, to enable TUI mode you can either use Ctrl+X+A or enter in tui enable into GDB to enter TUI mode. Once inside TUI mode, you can see the program's current point of execution marked in the line that's highlighted. In this case, my program is currently at line 7. To see what assembly is currently being executed, type in layout asm
Samansaadi
samansaadi.com › tutorial › notes › notes › programming › gdb
GDB | Saman Saadi
gdb -tui layout src layout asm layout reg · tui enable tui disable · By default it's empty. You need to run the program to see the code. You can press arrow up or down to scroll the source code. run · If you enter run again, it restart the execution. start · backtrace full ·
Top answer 1 of 11
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It's called the TUI (no kidding). Start for example with gdbtui or gdb -tui ...
Please also see this answer by Ciro Santilli. It wasn't available in 2012 to the best of my knowledge, but definitely worth a look.
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You can trigger it dynamically by push ctrl+x and ctrl+a.
Red Hat
developers.redhat.com › articles › 2022 › 08 › 03 › add-custom-windows-gdb-programming-tui-python
Add custom windows to GDB: Programming the TUI in Python | Red Hat Developer
November 6, 2023 - However, your before_prompt event handler is still registered and continues to call render, which will try to write to the screen using the gdb.TuiWindow object. To remove this message, you need to disconnect the event listener when your history_window is being removed from the screen. This task is easily done by adding the close method to your history_window class, like this:
GNU
ftp.gnu.org › old-gnu › Manuals › gdb › html_node › gdb_195.html
Debugging with GDB - TUI Commands
The TUI has specific commands to control the text windows. These commands are always available, that is they do not depend on the current terminal mode in which GDB runs. When GDB is in the standard mode, using these commands will automatically switch in the TUI mode. ... Display the next layout.
YouTube
youtube.com › watch
Debug faster with gdb layouts (TUI) - YouTube
Patreon ➤ https://www.patreon.com/jacobsorberCourses ➤ https://jacobsorber.thinkific.comWebsite ➤ https://www.jacobsorber.com---Debug faster with gdb layouts...
Published January 13, 2021
It1352
en.it1352.com › article › 4a1cb8c505994cd38e67133d737d4bd5.html
How to close layout SRC windows in gdb? - IT1352
When debugging with GDB， i usually using layout src to check my code. But when i open it, i don't know how to close it.