| commit | 0dd4ad30836ced77424e1ea8761f28d4e7a1de81 | [log] [tgz] |
|---|---|---|
| author | Christopher R. Johnson <crjohns@google.com> | Mon Dec 17 11:32:52 2018 -0800 |
| committer | CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> | Mon Dec 17 23:35:13 2018 +0000 |
| tree | de29ce03e5c7aff3df7b72171d6a225f699629a8 | |
| parent | b07eb2fe7b874c9181843f06ab544b8e434e52e7 [diff] |
[inspect] Fix bug in VMO Heap We were not properly checking that merging is possible between a block and its buddy. When two blocks of order n are merged into order n+1, we check the buddy of the new block for continued merging. We, however, need to make sure to check that the new buddy is of the right order before merging. This caused subtle errors when the ordering of Free operations was such that a block gets merged but what would be its new buddy is split to blocks of order < n+1. TEST=runtests -t inspect-test Change-Id: Ic4180b900635ede1701af1170cf12e30c2e80b1b
Zircon is the core platform that powers the Fuchsia OS. Zircon is composed of a microkernel (source in kernel/...) as well as a small set of userspace services, drivers, and libraries (source in system/...) necessary for the system to boot, talk to hardware, load userspace processes and run them, etc. Fuchsia builds a much larger OS on top of this foundation.
The canonical Zircon Git repository is located at: https://fuchsia.googlesource.com/zircon
A read-only mirror of the code is present at: https://github.com/fuchsia-mirror/zircon
The Zircon Kernel provides syscalls to manage processes, threads, virtual memory, inter-process communication, waiting on object state changes, and locking (via futexes).
Currently there are some temporary syscalls that have been used for early bringup work, which will be going away in the future as the long term syscall API/ABI surface is finalized. The expectation is that there will be about 100 syscalls.
Zircon syscalls are generally non-blocking. The wait_one, wait_many port_wait and thread sleep being the notable exceptions.
This page is a non-comprehensive index of the zircon documentation.