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
0a64c7d6a1
document the randomized array in the quarantine
2018-10-12 15:10:35 -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
e47c783524
add test for delete size mismatch
2018-10-11 01:45:47 -04:00
Daniel Micay
7606bf4c1f
clean up includes in new.cc
2018-10-11 01:35:25 -04:00
Daniel Micay
54c78fe1c2
distinguish between mmap / mremap errors
2018-10-10 19:05:35 -04:00
Daniel Micay
2381d973b1
expand on metadata address space security
2018-10-10 18:55:31 -04:00
Daniel Micay
29fd86ab37
document sized deallocation validation
2018-10-10 18:49:17 -04:00
Daniel Micay
c74fe56091
minor include style fix
2018-10-10 18:19:56 -04:00
Daniel Micay
ddcdd9423c
make the memory mapping quarantine more efficient
2018-10-09 14:13:59 -04:00
Daniel Micay
57d5ab769b
add write-after-free tests with potential reuse
2018-10-08 17:41:06 -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
fa2796a941
Makefile: add missing dependencies
2018-10-07 11:31:07 -04:00
Daniel Micay
cf07ae6007
update configuration in README
2018-10-06 15:38:09 -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
3a936295f8
Makefile: split out shared compiler flags
2018-10-05 02:45:40 -04:00
Daniel Micay
4716ff5b92
explicitly export C++ allocator overrides
...
This doesn't make any difference for GCC, but these aren't replaced
outside of the library with Clang without explicitly exporting them.
2018-10-05 02:23:49 -04:00
Daniel Micay
e6e9ac1fc9
support replacing C++ new/delete implementation
...
This adds support for sanity checks based on sized deallocation and will
reduce the overhead of calls through the C++ allocator.
2018-10-05 02:11:29 -04:00
Daniel Micay
3dc49f8f73
slightly improve sized deallocation error messages
2018-10-05 01:06:12 -04:00
Daniel Micay
dcd969ae04
use a consistent style for fixed-size int types
...
The stdint.h types don't cover 128-bit integers and the underscore makes
them ill suited to usage in function suffixes. Instead, use the common
naming style in the Linux kernel and elsewhere including the ChaCha8
implementation included here.
2018-10-04 15:17:11 -04:00
Daniel Micay
92a33182fb
port chacha.h to the code style used elsewhere
2018-10-04 04:13:28 -04:00
Daniel Micay
08a633b244
fix another typo in the README
2018-10-04 04:12:21 -04:00
Daniel Micay
ef32a4b7ea
add -pipe to CFLAGS
2018-10-04 04:03:48 -04:00
Daniel Micay
e99191d5d4
document tuning vm.max_map_count
2018-10-04 03:44:19 -04:00
Daniel Micay
d12cf324dd
add documentation on testing
2018-10-04 03:27:30 -04:00
Daniel Micay
2a31c7291b
add basic documentation on configuration
2018-10-04 03:15:55 -04:00
Daniel Micay
642eed81c0
allow using larger guards on large allocations
2018-10-04 02:58:24 -04:00
Daniel Micay
9b7691a2a7
take canaries into account for the offset test
2018-10-04 02:52:20 -04:00
Daniel Micay
71d52d981e
fix output of size class offset test
2018-10-04 02:41:01 -04:00
Daniel Micay
15e5e2d0ac
fix typo in README
2018-10-03 17:23:20 -04:00
Daniel Micay
5811bd184c
avoid unnecessary preprocessor use for canary mask
2018-10-03 17:17:20 -04:00
Daniel Micay
93fcc6a978
add simple string overflow test
2018-10-03 17:15:38 -04:00
Daniel Micay
b24569b6ca
zero leading byte of canaries
2018-10-03 17:09:57 -04:00
Daniel Micay
1fbf0e27f5
make error reporting more robust
2018-10-03 16:58:49 -04:00
Daniel Micay
6dfe33b4f1
add prefix to reported errors
2018-10-03 16:22:28 -04:00
Daniel Micay
6372fee410
use consistent macro naming convention
2018-10-03 16:00:37 -04:00
Daniel Micay
829ace403f
document free_sized API
2018-10-03 14:37:05 -04:00
Daniel Micay
c3a580727a
add MIT license
2018-10-03 13:18:51 -04:00
Daniel Micay
cf449b3df4
add sized deallocation support
2018-09-19 13:05:12 -04:00
