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A summary of the 15 minute video: 1. introduction to 'tui' mode in gdb (https://sourceware.org/gdb/onlinedocs/gdb/TUI.html https://sourceware.org/gdb/onlinedoc

A summary of the 15 minute video: 1. introduction to 'tui' mode in gdb (https://sourceware.org/gdb/onlinedocs/gdb/TUI.html https://sourceware.org/gdb/onlinedocs/gdb/TUI.html) 2. intro to python support in gdb (if it was compiled in) 2.1 python print('hello world') 2.1 set breakpoints with python gdb interface 3. Demo of reverse debugging in gdb, which helps isolate a stack-corrupting bug (https://www.gnu.org/software/gdb/news/reversible.html https://www.gnu.org/software/gdb/news/reversible.html)

castratikron 10y ago
GDB + Python is really slick. I wrote a Python C module for the first time last month and GDB really came in handy for that. It just worked.
- merraksh 10y ago
  Yes. It can print the value of C variables and Python objects, using their _str() method I assume. Extremely useful. Even better when done within Emacs.
  - jamra 10y ago
    I'm more of a vim user, but have dabbled in emacs so I'm not sure what you mean by "Even better when done in Emacs". Is there some kind of cool gdb tools in Emacs you're referring to? I'm just asking because day by day I'm becoming more interested in making the switch.
    - yeowMeng 10y ago
      I believe it is a reference to increased control over available gdb buffers (ex: register's value, disassembly, source). Ability to use macro's while debugging. And probably more key bindings.
    - moosingin3space 10y ago
      As someone who regularly switches back and forth between emacs and neovim, I do prefer emacs' gdb integration. It gives you an IDE-like view where you can set breakpoints visually and see registers/stack in their own windows.
      - hiimnate 10y ago
        >switches back and forth You make me sick
        cmrx64 10y ago
        Be civil. Low effort holy-war prods aren't welcome on HN.
        zeroer 10y ago
        I thought it was humor, and not a bad attempt at that.
        oldmanjay 10y ago
        That was not humor, and the editor holy wars haven't ever been funny or interesting. Comments like that belong in cesspits like Reddit, not here.
    - endgame 10y ago
      You might find this article useful: http://blog.aaronbieber.com/2015/05/24/from-vim-to-emacs-in-fourteen-days.html http://blog.aaronbieber.com/2015/05/24/from-vim-to-emacs-in-... Aaron gave a great talk about his switch here: https://www.youtube.com/watch?v=JWD1Fpdd4Pc https://www.youtube.com/watch?v=JWD1Fpdd4Pc , which caused several people at work to move off NeoVim and give emacs a go.
      - pjmlp 10y ago
        Thanks for the links it was interesting to watch as a former Emacs fan. In the old days, Emacs alongside DDD was the only way for me to get some of the Borland IDE comfort in UNIX land.
    - merraksh 10y ago
      "Meta-x gud-gdb" for the old fashioned, or "Meta-x gdb", starts a gdb session in Emacs. Give it the executable you want to debug, then at the prompt type "run arg1 arg2...". "watch p_mydata[34]->blahblah" sets a hardware watchpoint; Ctrl-x-a-b sets a breakpoint at the cursor in the Emacs; Ctrl-x-a-u runs until the cursor; Ctrl-x-a-j jumps at the cursor; And many other niceties. There's also a way to create a buffer to monitor some variables. You can actually attach the emacs-gdb buffer to a process you're running through valgrind when a valgrind error occurs. Not to mention it runs undo-gdb, of course.
- deleted 10y ago
  [deleted]

castratikron 10y ago

GDB + Python is really slick. I wrote a Python C module for the first time last month and GDB really came in handy for that. It just worked.

merraksh 10y ago
Yes. It can print the value of C variables and Python objects, using their _str() method I assume. Extremely useful. Even better when done within Emacs.
- jamra 10y ago
  I'm more of a vim user, but have dabbled in emacs so I'm not sure what you mean by "Even better when done in Emacs". Is there some kind of cool gdb tools in Emacs you're referring to? I'm just asking because day by day I'm becoming more interested in making the switch.
  - yeowMeng 10y ago
    I believe it is a reference to increased control over available gdb buffers (ex: register's value, disassembly, source). Ability to use macro's while debugging. And probably more key bindings.
  - moosingin3space 10y ago
    As someone who regularly switches back and forth between emacs and neovim, I do prefer emacs' gdb integration. It gives you an IDE-like view where you can set breakpoints visually and see registers/stack in their own windows.
    - hiimnate 10y ago
      >switches back and forth You make me sick
      - cmrx64 10y ago
        Be civil. Low effort holy-war prods aren't welcome on HN.
        zeroer 10y ago
        I thought it was humor, and not a bad attempt at that.
        oldmanjay 10y ago
        That was not humor, and the editor holy wars haven't ever been funny or interesting. Comments like that belong in cesspits like Reddit, not here.
  - endgame 10y ago
    You might find this article useful: http://blog.aaronbieber.com/2015/05/24/from-vim-to-emacs-in-fourteen-days.html http://blog.aaronbieber.com/2015/05/24/from-vim-to-emacs-in-... Aaron gave a great talk about his switch here: https://www.youtube.com/watch?v=JWD1Fpdd4Pc https://www.youtube.com/watch?v=JWD1Fpdd4Pc , which caused several people at work to move off NeoVim and give emacs a go.
    - pjmlp 10y ago
      Thanks for the links it was interesting to watch as a former Emacs fan. In the old days, Emacs alongside DDD was the only way for me to get some of the Borland IDE comfort in UNIX land.
  - merraksh 10y ago
    "Meta-x gud-gdb" for the old fashioned, or "Meta-x gdb", starts a gdb session in Emacs. Give it the executable you want to debug, then at the prompt type "run arg1 arg2...". "watch p_mydata[34]->blahblah" sets a hardware watchpoint; Ctrl-x-a-b sets a breakpoint at the cursor in the Emacs; Ctrl-x-a-u runs until the cursor; Ctrl-x-a-j jumps at the cursor; And many other niceties. There's also a way to create a buffer to monitor some variables. You can actually attach the emacs-gdb buffer to a process you're running through valgrind when a valgrind error occurs. Not to mention it runs undo-gdb, of course.
deleted 10y ago
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