81 Commits

Author	SHA1	Message	Date
Daniel Micay	718bf82f96	add inline hints for slab_allocate and slab_free	2018-08-27 09:29:30 -04:00
Daniel Micay	33f862ec19	add inline hints for init and enforce_init	2018-08-27 09:29:27 -04:00
Daniel Micay	67b9608ccf	avoid duplicated init code calculating slab size	2018-08-27 09:22:04 -04:00
Daniel Micay	c7b24f63f1	use libdivide for substantially faster division	2018-08-27 07:07:48 -04:00
Daniel Micay	63b0c39343	reorder size_class struct for better performance	2018-08-27 05:21:58 -04:00
Daniel Micay	14ca7d7c3f	randomize large allocation guard size	2018-08-26 04:46:12 -04:00
Daniel Micay	a13a45a17d	hold regions_lock in alloc_aligned	2018-08-26 04:37:43 -04:00
Daniel Micay	2b7c9362bb	consume fewer random bytes for slab randomization	2018-08-25 18:32:44 -04:00
Daniel Micay	c5d76179a5	improve interaction of slot rand with slot mask	2018-08-25 18:04:55 -04:00
Daniel Micay	173dd6e7a5	randomize slot selection for empty slabs too	2018-08-25 18:02:13 -04:00
Daniel Micay	c335c43dd7	simplify slab out-of-memory error handling	2018-08-25 16:41:07 -04:00
Daniel Micay	7bcfa3f08b	tune slab metadata allocation	2018-08-25 15:46:22 -04:00
Daniel Micay	4777ee0c85	special case division for page size slabs	2018-08-25 15:21:50 -04:00
Daniel Micay	ec78add6ab	define ffzl utility function	2018-08-25 03:14:07 -04:00
Daniel Micay	f08d4d31db	randomize slab slot choice	2018-08-25 03:02:39 -04:00
Daniel Micay	965c3202b4	finish implementation of zero byte size class	2018-08-25 02:48:47 -04:00
Daniel Micay	f97a0ef8b1	use a more appropriate type for masked bitmaps	2018-08-25 01:09:15 -04:00
Daniel Micay	f3c8502509	add CSPRNGs for regions and slabs	2018-08-25 00:25:33 -04:00
Daniel Micay	805bdc6087	add an extra sanity check for unallocated metadata	2018-08-24 05:22:38 -04:00
Daniel Micay	2d168b0516	check for double free slightly earlier	2018-08-24 04:51:52 -04:00
Daniel Micay	97b693d862	stop treating guard size as a constant	2018-08-24 04:07:46 -04:00
Daniel Micay	83dabbd8fa	fix handling of random bases for class regions	2018-08-24 03:52:01 -04:00
Daniel Micay	0d51459dc9	add a special memory protected 0 byte size class	2018-08-24 03:24:23 -04:00
Daniel Micay	7a86b67778	add unaligned free check for small allocations	2018-08-24 02:55:53 -04:00
Daniel Micay	2aee424b7b	fix inconsistent whitespace	2018-08-24 02:09:20 -04:00
Daniel Micay	a874a61099	adjust slot count for 12288 byte size class	2018-08-23 18:00:13 -04:00
Daniel Micay	127f110126	adjust slot count for 10240 byte size class	2018-08-23 17:56:17 -04:00
Daniel Micay	c59c97c65b	adjust slot count for 48 byte size class	2018-08-23 17:53:10 -04:00
Daniel Micay	56e4c7e042	adjust slot count for 224 byte size class	2018-08-23 17:42:51 -04:00
Daniel Micay	4aa0fab4f4	avoid deadlocks after forking threaded processes	2018-08-23 17:22:12 -04:00
Daniel Micay	70d61b6662	initial commit	2018-08-23 15:42:41 -04:00