mirror of
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82 lines
2.5 KiB
Markdown
82 lines
2.5 KiB
Markdown
---
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title: Contributing and Debugging
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---
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Everything needed to build and debug Hyprland and other hyprwm programs is
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included inside the provided `devShell`s.
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To use it in the cloned repo, simply run `nix develop`.
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## Build in debug mode
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A debug build is already provided through
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`hyprland.packages.${pkgs.stdenv.hostPlatform.system}.hyprland-debug`.
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Most hyprwm apps also provide their own `-debug` versions. For those that don't,
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one can build the debug version from the CLI by using
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[overrideAttrs](../Options-Overrides/#using-nix-repl) with
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`cmakeBuildType = "debug";` or `mesonBuildType = "debug";`, depending on the
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program.
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## Bisecting an issue
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Follow the
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[Bisecting an issue](https://wiki.hyprland.org/Crashes-and-Bugs/#bisecting-an-issue)
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guide. To build, run `nix build`.
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{{< callout >}}
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To build with Tracy support, modify `nix/default.nix` to enable the flag, then run
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`nix build '.?submodules=1'`.
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{{< /callout >}}
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To view logs, pass the `--print-build-logs` (`-L`) flag.
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To keep a failed build directory, pass the `--keep-failed` flag.
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## Building the Wayland stack with ASan
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Run `nix develop` first, then follow the
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[Building with ASan](https://wiki.hyprland.org/Crashes-and-Bugs/#building-the-wayland-stack-with-asan)
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guide.
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## Getting a debug stacktrace
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Debug stacktraces provide useful info on why a program crashed. To get proper
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stacktraces from Hyprland, make sure it was [built in debug mode](#build-in-debug-mode).
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After a crash, perform the following steps:
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```sh
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nix shell nixpkgs#gdb # get gdb temporarily
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coredumpctl # check the PID of the recent crash
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coredumpctl debug <PID> # using the PID found in the previous step
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```
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The rest of the process is the same as
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[here](../../Crashes-and-Bugs#obtaining-a-debug-stacktrace), from step 3 onwards.
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## Manual building
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Nix works differently than other build systems, so it has its own abstractions
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over popular build systems such as Meson, CMake and Ninja.
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In order to manually build Hyprland, you can run the following commands, while
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in the `nix develop` shell.
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For CMake:
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```bash
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cmakeConfigurePhase # to run the CMake configure phase
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ninjaBuildPhase # to run the Ninja build phase (or buildPhase when ninja is not available)
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ninjaInstallPhase # to run the Ninja install phase (or installPhase when ninja is not available)
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```
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For Meson:
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```bash
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mesonConfigurePhase # to run the Meson configure phase
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ninjaBuildPhase # to run the Ninja build phase
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mesonInstallPhase # to run the Meson install phase
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```
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