125 commits

Author	SHA1	Message	Date
daan	60cfc623be	fix zero initialization of blocks under 8 bytes when padding check is active	2020-02-01 14:29:12 -08:00
daan	edff9d4fbb	merge from dev-win (padding)	2020-02-01 12:32:59 -08:00
daan	aa68b8cbc7	improve encoding of padding canary and buffer overflow detection	2020-02-01 12:16:37 -08:00
daan	40f1e1e07b	byte-precise heap block overflow checking with encoded padding	2020-01-31 23:39:51 -08:00
daan	68112a2751	better padding implementation, more precise statistics	2020-01-31 20:34:24 -08:00
daan	4531367de2	fix padding check for aligned allocation; improve perf for small aligned allocations	2020-01-31 13:20:02 -08:00
daan	a7c69ccbea	fix stat accounting of segments with huge blocks	2020-01-30 06:25:42 -08:00
daan	7ff3ec2bf7	use EFAULT for buffer overflow and call abort in debug mode (as well as secure mode)	2020-01-29 17:25:40 -08:00
daan	5d212d688f	add MI_PADDING build option to add padding to each block to detect heap block overflows	2020-01-29 17:10:57 -08:00
daan	0316859e06	improve codegen for mi_free	2020-01-23 10:03:03 -08:00
daan	e3b16fe4ef	reduce type casts in atomic operations	2020-01-22 19:44:54 -08:00
daan	3957b2fd28	add mi_new_realloc(n) to support C++ style reallocation that raises std::bad_alloc on out-of-memory	2020-01-20 15:41:56 -08:00
daan	e8d7c80c74	fix build warnings on linux	2020-01-19 17:33:36 -08:00
daan	41e717c2e0	fix assertion in mi_block_zero_init (issue #194)	2020-01-18 20:30:12 -08:00
daan	dc58388968	Add ability to register custom error function called on various error conditions; including ENOMEM	2020-01-17 19:59:55 -08:00
daan	6dd636d82d	improve STL allocator using mi_new_n and removing unused parameter names; follow up from pr #193 and #188	2020-01-17 15:41:52 -08:00
daan	7a9502973d	rearrange STL allocator code: remove pragma, ifdef for C++11	2020-01-16 15:57:11 -08:00
daan	4e91eab8fc	specialize mi_mallocn for count=1	2020-01-16 14:12:37 -08:00
daan	0099707af9	use delayed free for all pages; reduce size of the page structure for improved address calculation	2020-01-15 17:19:01 -08:00
daan	d596f08569	fix thread_free read in assertion	2020-01-03 22:06:27 -08:00
daan	9629a0190f	fix eager commit on large pages (issue #182)	2020-01-02 17:25:00 -08:00
daan	fc3e537bd4	improve double free detection with faster same page check	2019-12-28 15:28:13 -08:00
daan	e3391d9a53	stronger encoding of free lists using two keys per page	2019-12-28 00:57:42 -08:00
daan	74dbfc30be	improved security by encoding NULL values; double free mitigation on by default; more precise free list corruption detection	2019-11-21 15:21:23 -08:00
Daan Leijen	4d4a2885f5	use atomic read/write on the page->heap field where concurrent interaction is possible	2019-11-20 13:19:17 -08:00
daan	b052d3b731	enable double free and heap corruption detection in debug mode	2019-10-28 15:54:33 -07:00
daan	28d4ec4c5a	fix statistics accounting of huge pages	2019-10-28 13:14:14 -07:00
daan	25246070ae	fix double free check in secure = 4 mode; inline _mi_ptr_cookie	2019-10-19 08:34:18 -07:00
daan	2affdbbd2e	stronger secure mode when defining MI_SECURE=4: checks for double free, corrupted free list, and invalid pointer frees. Performance is impacted but not too much -- more perf testing is needed	2019-10-18 18:11:04 -07:00
daan	5de851a84d	update page_flags to have more portable definition	2019-10-17 16:48:16 -07:00
Johannes Schindelin	5bd8ea2e4f	Repeat mi_decl_allocator in functions' definitions ... Quite a few functions are declared with that attribute, and VS 2019 complains if the definition does not repeat it. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>	2019-10-17 20:43:18 +02:00
daan	a6a956c589	add back zero initialized re-allocation	2019-09-03 10:57:39 -07:00
daan	7a91368108	pass page to block_zero_init and extend to block_size	2019-09-03 10:11:24 -07:00
daan	739d11313c	fix commit zero on windows	2019-09-02 14:53:22 -07:00
daan	d1bd1644d5	support zero-initialized memory detection	2019-09-02 13:16:52 -07:00
daan	7ce9c02fd4	make cas weak use release memory order; improve free assembly	2019-08-26 08:20:26 -07:00
daan	5c7c106d62	strengthen some atomic operations for weak memory models	2019-08-26 08:11:58 -07:00
daan	e8664001f7	Use standard _Atomic declarations and clean up atomic operations	2019-08-25 22:59:12 -07:00
daan	23812cc0ac	do not keep a queue of huge pages and free them directly	2019-08-24 15:45:14 -07:00
daan	6c6fcad242	remove threadid from pages and keep page flags separate (cherry picked)	2019-08-23 21:42:24 -07:00
daan	61ebaaa403	Merge branch 'dev' of https://github.com/microsoft/mimalloc into dev	2019-08-19 08:10:11 -07:00
Daan Leijen	069c26dbab	fix small object size check in mi_segment_page_alloc	2019-08-16 18:40:30 -07:00
daan	d3375f2bac	fix assertion in mi_free_size	2019-08-12 13:50:41 -07:00
daan	7b105c4810	improve layout of page for x64	2019-08-11 10:31:00 -07:00
daan	737b05cc25	remove unused fields from OS thread local data	2019-08-10 17:50:27 -07:00
daan	ed785253bf	restructure the page flags to use explicit masks	2019-08-10 17:48:00 -07:00
daan	442bad9190	add good-fit for allowing larger blocks in smaller segments	2019-08-09 11:18:38 -07:00
daan	5e56b40fe6	improve page flags handling	2019-08-08 17:18:49 -07:00
daan	6596e970a5	move in_full and has_aligned into page threadid for a single test in mi_free	2019-08-08 15:23:18 -07:00
daan	189ad0f81d	small optimizations, use bitwise aligne	2019-07-23 15:00:13 -07:00