4 commits

Author	SHA1	Message	Date
Mark Johnston	0fc8a79672	linux: Unmap the VDSO page when unloading ... linux_shared_page_init() creates an object and grabs and maps a single page to back the VDSO. When destroying the VDSO object, we failed to destroy the mapping and free KVA. Fix this. Reviewed by: kib MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D28696	2021-02-16 09:40:02 -05:00
Dmitry Chagin	c151945c86	Avoid using [LINUX_]SHAREDPAGE constant directly in the vdso code. ... This is needed for https://reviews.freebsd.org/D11780. Reported by: kib@	2017-07-30 21:24:20 +00:00
Dmitry Chagin	36204c3016	Add 64 bit support to the vdso. ... Differential Revision: https://reviews.freebsd.org/D1069 Reviewed by: trasz	2015-05-24 15:45:36 +00:00
Dmitry Chagin	bdc379344a	Implement vdso - virtual dynamic shared object. Through vdso Linux ... exposes functions from kernel with proper DWARF CFI information so that it becomes easier to unwind through them. Using vdso is a mandatory for a thread cancelation && cleanup on a modern glibc. Differential Revision: https://reviews.freebsd.org/D1060	2015-05-24 15:28:17 +00:00