#nixos-dev on 2018-05-11

2018-04-19 20:31 gchristensen changed the topic of #nixos-dev to: NixOS Development (#nixos for questions) | https://hydra.nixos.org/jobset/nixos/trunk-combined https://channels.nix.gsc.io/graph.html | 18.03 release managers: fpletz and vcunat | https://logs.nix.samueldr.com/nixos-dev

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10:26 <Mic92_> jcrben: regarding ui take a look at gdbgui.

10:27 <Mic92_> jcrben: but our gdb in nixpkgs might be not function on macOS because ptrace on macOS is only allowed for signed applications?

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15:10 <Sonarpulse> Dezgeg: I think I can start an always-cross branch with a hydra job (probably without --host and --build across the board) after we land the gnu-config-arm branch

15:10 <Sonarpulse> I think that should work now?

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18:47 <jcrben> Mic92_: I ended up getting vscode.cpp to work - explained at https://github.com/NixOS/nixpkgs/issues/35088#issuecomment-388448573

18:49 <jcrben> on nixos - I've given up on trying to make it work on darwin. however, even after running make with the CFLAGS I mentioned above, I still quickly ran into "__lhs: value has been optimized out" over in globals.css Settings::LoadConfFile

18:51 <jcrben> Mic92_: do you use gdbgui much? have a custom shell.nix or scripts that you run to set it up to your liking?

18:52 <jcrben> (globals.css -> globals.cc)

19:09 <Sonarpulse> Dezgeg: what do you think of forcing -march etc based on platform.gcc.arch ?

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22:36 <Mic92_> jcrben: sometimes, currently I am doing more lowlevel stuff on the binary level and building my own debugger. Here is a patch to optimize gdbgui a bit: https://github.com/Mic92/dotfiles/blob/master/nixpkgs-config/gdbgui.patch. It is in nixpkgs

22:37 <Mic92_> jcrben: value has been optimized out is also shown if your values goes out of scope.

22:37 <Mic92_> even without optimization enabled.

22:38 <Mic92_> jcrben: here an example where the register holding argv gets overwritten by a function call: https://gist.github.com/Mic92/fe86fed229e442a344e0158c8f8a25a9

22:39 <Mic92_> actually argc not argv

22:39 <Mic92_> jcrben: that one would kind of solve the problem: https://github.com/inspector-repl/inspector

22:40 <Mic92_> I currently only don't have time to work on that and compiling clang + llvm is always ugly.

22:40 <jcrben> Mic92_: ooh, I see that's your debugger - looks fancy

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22:42 <Mic92_> jcrben: no, that's not the debugger I meant, that one will be go into a different direction.

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