143 Commits

Author	SHA1	Message	Date
Daniel Micay	3a488c9a27	add initial slab allocation quarantine	2018-11-05 16:43:08 -05:00
Daniel Micay	fea335282a	use slab_region_start for init checks	2018-11-05 03:56:55 -05:00
Daniel Micay	4ac2688d76	add support for slab metadata count field	2018-11-01 04:49:27 -04:00
Daniel Micay	834ce67884	make canary generation consistent	2018-10-30 19:23:40 -04:00
Daniel Micay	c29a183687	reduce overhead of slot randomization	2018-10-30 18:58:04 -04:00
Daniel Micay	ceffb1a0ec	simplify get_free_slot loops	2018-10-30 16:37:23 -04:00
Daniel Micay	a02f4ebb19	add missing deallocate_small thread_seal_metadata	2018-10-28 23:23:54 -04:00
Daniel Micay	00915521a3	check canary before zeroing as an optimization	2018-10-28 21:07:35 -04:00
Daniel Micay	4cd61e281d	add workaround for bug in Linux MPK implementation	2018-10-23 19:08:33 -04:00
Daniel Micay	299bd6d414	add missing thread unseal / seal for atfork hooks	2018-10-23 16:28:54 -04:00
Daniel Micay	59def67979	add inlined check for -1 with pkey_set	2018-10-23 08:00:34 -04:00
Daniel Micay	0b963078d5	guard metadata with Memory Protection Keys (MPK)	2018-10-23 01:11:31 -04:00
Daniel Micay	ac8c68de53	enable pointer cast warnings	2018-10-21 15:50:26 -04:00
Daniel Micay	9a43302868	add enforce_init call to other realloc code path	2018-10-20 02:27:06 -04:00
Daniel Micay	6a408ad017	add init calls to malloc_enable/malloc_disable	2018-10-19 21:46:36 -04:00
Daniel Micay	f0a6f551eb	tweak code style	2018-10-18 19:35:21 -04:00
Daniel Micay	1e03b004f5	move slab_info to main metadata region	2018-10-18 16:01:04 -04:00
Daniel Micay	3f1962dd2b	use min macro for realloc copy size	2018-10-18 15:25:14 -04:00
Daniel Micay	fe30f6c2ea	delay allocating slab metadata from reservation	2018-10-18 15:20:42 -04:00
Daniel Micay	64e9f6797a	use offsetof for allocator_state memory protection	2018-10-16 15:52:41 -04:00
Daniel Micay	67ada4d309	document padding for allocator state	2018-10-15 19:10:36 -04:00
Daniel Micay	1c9e0d88a5	use the initial region table slots again	2018-10-15 15:18:45 -04:00
Daniel Micay	da0df69d22	move region hash tables into main state region	2018-10-15 15:07:59 -04:00
Daniel Micay	1e5dec97e0	move slab allocator state into main state region	2018-10-15 14:58:22 -04:00
Daniel Micay	fde9fc2ece	protect region allocator state with random guards	2018-10-14 22:41:17 -04:00
Daniel Micay	da6fd5b5ef	move slab allocator state to a dedicated mapping	2018-10-14 22:06:38 -04:00
Daniel Micay	1190966846	rename region_info to region_metadata	2018-10-14 22:06:38 -04:00
Daniel Micay	a083ff79e1	move region allocator state to a dedicated mapping	2018-10-14 22:06:33 -04:00
Daniel Micay	535466fdfd	avoid undefined shifts with multi-word bitmaps	2018-10-14 18:58:17 -04:00
Daniel Micay	7798b2693e	fix loop exit condition boundary for get_free_slot	2018-10-14 18:49:48 -04:00
Daniel Micay	9ea2fd6667	write_after_free_check only reads data	2018-10-14 18:30:20 -04:00
Daniel Micay	d35674c67e	expected_size is not an output parameter	2018-10-14 18:28:01 -04:00
Daniel Micay	4fbfe4d3ec	fix canary space reservation for pvalloc	2018-10-14 17:49:36 -04:00
Daniel Micay	f11c448a0d	slightly reorganize slab metadata	2018-10-14 15:13:06 -04:00
Daniel Micay	3db3e167ed	remove usage of ATOMIC_VAR_INIT ... This was never truly required in practice and has been officially obsoleted in C17.	2018-10-13 16:50:49 -04:00
Daniel Micay	65a7014b48	randomize free slabs reuse	2018-10-13 13:57:00 -04:00
Daniel Micay	83df37436d	fix usage of pthread_atfork for glibc < 2.28	2018-10-12 16:03:15 -04:00
Daniel Micay	6669166fe9	move memory_unmap outside of lock scope	2018-10-12 15:06:51 -04:00
Daniel Micay	b2007ad3d9	implement randomization for the region quarantine	2018-10-12 15:03:59 -04:00
Daniel Micay	ac2b940f0f	fix compatibility with older GCC versions ... Avoid relying on compiler extensions supporting more flexible usage of constants closer to how it works in C++.	2018-10-11 18:12:49 -04:00
Daniel Micay	ddcdd9423c	make the memory mapping quarantine more efficient	2018-10-09 14:13:59 -04:00
Daniel Micay	5fa6e01929	clearer name for MREMAP_MAYMOVE threshold	2018-10-08 17:18:13 -04:00
Daniel Micay	1a10c17e8b	add quarantine for large allocations	2018-10-08 16:14:07 -04:00
Daniel Micay	cc9699f1b4	use multi-word bitmap to support up to 256 slots	2018-10-07 18:50:06 -04:00
Daniel Micay	5e2f03296e	remove old debugging code	2018-10-07 16:18:17 -04:00
Daniel Micay	348f9fa557	add configuration for frequency of guard slabs	2018-10-06 15:36:03 -04:00
Daniel Micay	4ee12e64e0	configuration for guard region sizes	2018-10-06 15:17:55 -04:00
Daniel Micay	d18b05eaf4	avoid redundant checks for large realloc	2018-10-06 13:31:16 -04:00
Daniel Micay	eb7ced7781	implement in-place growth of large allocations	2018-10-06 13:24:22 -04:00
Daniel Micay	3dc49f8f73	slightly improve sized deallocation error messages	2018-10-05 01:06:12 -04:00