Augustin Cavalier
d36a3e286b
Compared to the old kernel guarded heap, this new one: * Uses VMTranslationMap and related APIs directly, rather than indirectly through the "protection cookie" system. This means those custom APIs, which nothing else except the guarded heap used, can now be dropped. * Does not allocate vm_pages for guard pages, and frees vm_pages when not in use. This means that DISABLE_MEMORY_REUSE is much more usable now, as it only does not reuse virtual memory, allowing for much longer-running systems. * Uses trees to manage meta chunks. This avoids unbounded growth of the meta chunk count, especially under DISABLE_MEMORY_REUSE. * Handles page faults directly and prints information about the fault address/allocation automatically. The system still boots and runs fine with this new guarded heap, including under USE...FOR_OBJECT_CACHE. Change-Id: If85e5689a47088790287990c881364fcde4cc76d Reviewed-on: https://review.haiku-os.org/c/haiku/+/9705 Reviewed-by: waddlesplash <[email protected]>
Haiku
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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.
Goals
- Sensible defaults with minimal configuration required.
- Clean, clear, concise code.
- Unified desktop environment.
Trying Haiku
Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.
Compiling Haiku
See ReadMe.Compiling.
Contributing
Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!
Contributing code
If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.
If you're having trouble finding something in the source tree, you can use one of our web-based source code browsers:
- https://grok.nikisoft.one/opengrok/ (OpenGrok, provided by Niklas Poslovski)
- https://git.haiku-os.org/ (git, provided by Haiku, Inc.)
Contributing documentation
The main piece of documentation that still needs work are the API docs (found
in the tree at docs/user). Just find an undocumented class, write
documentation for it, and submit a patch.
Contributing translations
See wiki:i18n.
Contributing software ports
See HaikuPorts.
Contributing to our infrastructure
See Infrastructure.