3 commits

Author	SHA1	Message	Date
Andreas Kling	794758df3a	Kernel: Implement some basic stack pointer validation ... VM regions can now be marked as stack regions, which is then validated on syscall, and on page fault. If a thread is caught with its stack pointer pointing into anything that's *not* a Region with its stack bit set, we'll crash the whole process with SIGSTKFLT. Userspace must now allocate custom stacks by using mmap() with the new MAP_STACK flag. This mechanism was first introduced in OpenBSD, and now we have it too, yay! :^)	2019-11-17 12:15:43 +01:00
Andreas Kling	7d6689055f	Kernel+LibC+crash: Add mprotect() syscall ... This patch adds the mprotect() syscall to allow changing the protection flags for memory regions. We don't do any region splitting/merging yet, so this only works on whole mmap() regions. Added a "crash -r" flag to verify that we crash when you attempt to write to read-only memory. :^)	2019-08-12 19:33:24 +02:00
Andreas Kling	04b9dc2d30	Libraries: Create top level directory for libraries. ... Things were getting a little crowded in the project root, so this patch moves the Lib*/ directories into Libraries/.	2019-07-04 16:16:50 +02:00

Renamed from LibC/mman.h (Browse further)