55 commits

Author	SHA1	Message	Date
Andreas Kling	e87eac9273	Userland: Add LibSystem and funnel all syscalls through it ... This achieves two things: - Programs can now intentionally perform arbitrary syscalls by calling syscall(). This allows us to work on things like syscall fuzzing. - It restricts the ability of userspace to make syscalls to a single 4KB page of code. In order to call the kernel directly, an attacker must now locate this page and call through it.	2021-02-05 12:23:39 +01:00
Peter Elliott	c0e88b9710	Kernel: Add FIBMAP ioctl to Ext2FileSystem ... FIBMAP is a linux ioctl that gives the location on disk of a specific block of a file	2021-01-30 22:54:51 +01:00
Ben Wiederhake	67cda61b7f	Libraries: Add missing headers ... A C++ source file containing just #include <LibFoo/Bar.h> should always compile cleanly. This patch adds missing header inclusions that could have caused weird error messages if they were used in a different context. Also, this confused QtCreator.	2021-01-22 21:49:54 +01:00
Tom	1d621ab172	Kernel: Some futex improvements ... This adds support for FUTEX_WAKE_OP, FUTEX_WAIT_BITSET, FUTEX_WAKE_BITSET, FUTEX_REQUEUE, and FUTEX_CMP_REQUEUE, as well well as global and private futex and absolute/relative timeouts against the appropriate clock. This also changes the implementation so that kernel resources are only used when a thread is blocked on a futex. Global futexes are implemented as offsets in VMObjects, so that different processes can share a futex against the same VMObject despite potentially being mapped at different virtual addresses.	2021-01-17 20:30:31 +01:00
Andreas Kling	13d7c09125	Libraries: Move to Userland/Libraries/	2021-01-12 12:17:46 +01:00