emo/hardened_malloc
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
640 Commits 1 Branch 0 Tags 730 KiB
c9d1abcd7e
Commit Graph

640 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Daniel Micay
c9d1abcd7e explicitly mark fatal error conditions unlikely 2022-01-21 19:45:05 -05:00
Daniel Micay
8f0b252c33 mark more out-of-memory conditions as unlikely 2022-01-21 19:03:02 -05:00
Daniel Micay
3cffc1e1af treat zero size malloc as unlikely 
Calls to malloc with a zero size are extremely rare relative to normal
usage of the API. It's generally only done by inefficient C code with
open coded dynamic array implementations where they aren't handling zero
size as a special case for their usage of malloc/realloc. Efficient code
wouldn't be making these allocations. It doesn't make sense to optimize
for the performance of rare edge cases caused by inefficient code.
 2022-01-21 18:27:04 -05:00
Daniel Micay
ae2524bf88 ignore environment for test Makefile variables 2022-01-21 16:24:49 -05:00
Daniel Micay
e28addda19 add back gitignore entries 2022-01-21 15:07:13 -05:00
Daniel Micay
9d89712386 remove extra newline 2022-01-21 15:06:29 -05:00
jvoisin
84eadd8568 Move memory corruption tests up a directory 2022-01-21 15:00:18 -05:00
Daniel Micay
0bbcc5d610 malloc.c was renamed to h_malloc.c 2022-01-19 16:42:12 -05:00
jvoisin
3fa30842ed Use $(MAKE) instead of make in Makefiles 
This will pass the correct flags to the make
invocations.
 2022-01-17 16:21:00 -05:00
Daniel Micay
b3d78bd5f6 use static const for local constants 2022-01-16 21:02:17 -05:00
Daniel Micay
8d61e63274 add comment about special small size classes 2022-01-16 20:50:49 -05:00
Daniel Micay
422ee78b3e reorganize pages.h header 2022-01-16 16:57:22 -05:00
Daniel Micay
3e312695e1 document clz64/log2u64 not being able to handle 0 2022-01-16 16:28:49 -05:00
Daniel Micay
81cf2f27a0 calculate slab size class instead of array loop 2022-01-16 16:18:14 -05:00
Daniel Micay
d8cb2d9f7a use consistent wrappers around clz/ffs 2022-01-16 15:39:59 -05:00
Daniel Micay
86f9c739ee define constant for u64 bit width 2022-01-16 15:06:36 -05:00
Daniel Micay
536f852538 reuse a single size alignment implementation 2022-01-16 14:44:28 -05:00
Daniel Micay
e814cf4f5c enable linking optimization for GNU linker 2022-01-16 12:18:00 -05:00
Daniel Micay
705211ef49 define UBSan flags for SHARED_FLAGS to reuse it 2022-01-16 11:50:55 -05:00
Daniel Micay
189d3362d5 enable sized deallocation ABI for consistency 2022-01-16 11:49:51 -05:00
Daniel Micay
e2bcf4a356 stop silencing constant logical operand warning 
This was resolved by 3696f071a4.
 2022-01-13 14:51:22 -05:00
Daniel Micay
d470ae56a5 switch Android build to C17 from C11 2022-01-13 14:48:56 -05:00
Daniel Micay
42b097f3b0 CONFIG_SEAL_METADATA is regularly tested now 2022-01-13 14:25:41 -05:00
Daniel Micay
17891d743e switch from c11 to c17 standard 2022-01-12 10:20:47 -05:00
Daniel Micay
efd71e70c7 update documentation based on light configuration 2022-01-12 08:58:00 -05:00
Daniel Micay
a6d27848af wrap overly long line 2022-01-12 08:44:39 -05:00
Daniel Micay
110126d7f0 README: fix path to configuration templates 2022-01-12 08:43:36 -05:00
Daniel Micay
a2bdb4da27 update gitignore for renamed / added tests 2022-01-12 08:41:21 -05:00
Daniel Micay
0c0561e563 update gitignore for config template system 2022-01-12 08:41:12 -05:00
Daniel Micay
5a577e9ee0 document configuration template system 2022-01-12 08:38:33 -05:00
Daniel Micay
b3372e1576 add configuration template system 2022-01-10 04:47:01 -05:00
jvoisin
052b756840 Fix two warnings 2022-01-09 08:50:46 -05:00
jvoisin
001eb0687b Fix an unused parameter warning 2022-01-04 12:16:53 -05:00
Daniel Micay
2a5662948e rename bitmap manipulation functions 2022-01-04 12:14:55 -05:00
Daniel Micay
d1c39edc9b use const for malloc_object_size API 2022-01-04 10:14:41 -05:00
Daniel Micay
aa1746a90d alloc_size attribute for legacy valloc function 2022-01-04 10:04:26 -05:00
Daniel Micay
f3efc26638 add malloc attribute where appropriate 2022-01-04 09:56:29 -05:00
jvoisin
78cbb964d4 Add alloc_size and alloc_align attributes 
This should help a bit the compiler to emit better diagnostics and to improve
the correctness of `__builtin_object_size`.

See https://clang.llvm.org/docs/AttributeReference.html#alloc-size
and https://clang.llvm.org/docs/AttributeReference.html#alloc-align
 2022-01-04 09:45:20 -05:00
jvoisin
36dfed3354 Add aarch64 to the CI 2022-01-04 09:45:00 -05:00
Daniel Micay
8a500088c6 add missing include for overflow tests 2022-01-03 21:24:31 -05:00
Daniel Micay
c50d06bc6a comment explaining XOR for 8 byte overflow test 2022-01-03 21:23:14 -05:00
Daniel Micay
645414cc9f add 1 byte overflow tests 2022-01-03 21:20:15 -05:00
Daniel Micay
13a1f578cb use calculated size for overflow tests 
This greatly reduces how much these tests depend on hard-wired knowledge
about the size classes.
 2022-01-03 21:11:31 -05:00
Daniel Micay
acda766e2c fix small allocation canary overwrite test 
Overwriting one byte of a canary with 0 has a 1/256 chance of not
triggering the expected failure.
 2022-01-03 21:08:14 -05:00
Daniel Micay
5f32942263 get rid of canary_value when canaries are disabled 2022-01-03 20:39:30 -05:00
Daniel Micay
346529574d check whole allocation for uninit read large test 2022-01-03 17:55:05 -05:00
Daniel Micay
16c991b8f7 use 256k for large allocation tests 2022-01-03 16:11:16 -05:00
jvoisin
5f59ee3935 Add two tests to check that uninitialized read are zeroed 2022-01-03 16:10:01 -05:00
Daniel Micay
3696f071a4 use SLAB_CANARY for conditional checks 2022-01-03 02:17:04 -05:00
Daniel Micay
7d6663ed80 update copyright notice 2022-01-03 01:41:27 -05:00