microsoft
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snmalloc
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1 196 коммитов 11 Ветки 13 Теги 11 MiB
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1196 Коммитов

Автор SHA1 Сообщение Дата
Matthew Parkinson c02077a06a Bug fix in umul code for 32-bit Win 2019-02-15 14:36:47 +00:00
Matthew Parkinson e7d90966f6 Made the malloc tests run on Windows 2019-02-15 14:36:47 +00:00
Matthew Parkinson ac8e5e4e5b Fix comment to represent current PAL API. 2019-02-15 09:24:01 +00:00
Matthew Parkinson bf58015c25
Merge pull request #20 from Theodus/malloc-tests 
Add malloc tests
 2019-02-15 09:12:07 +00:00
Theo Butler a3fb2b9531 cleanup some tests 2019-02-14 22:31:45 -05:00
Theo Butler d2909eed0a Merge branch 'master' into malloc-tests 2019-02-14 22:30:48 -05:00
Theo Butler 90414f82f6
Merge pull request #22 from Microsoft/zero_bug 
Pal zero bug alignment
 2019-02-14 22:26:18 -05:00
Matthew Parkinson adeecfb0f1 Added bug fix to alignment of using. 2019-02-14 20:08:04 +00:00
Matthew Parkinson 8b9a525500 Added zero test at threshold. 2019-02-14 19:59:36 +00:00
Theo Butler c555bf7218 fix doc comments for notify_using 2019-02-13 17:15:06 -05:00
Matthew Parkinson 35803305f2
Merge pull request #19 from plietar/visibility 
Make internal symbols hidden.
 2019-02-13 21:50:00 +00:00
Theo Butler 057595a57e remove -1 check in calloc 2019-02-13 16:03:38 -05:00
Theo Butler 942313fec7 replace asserts with abort 2019-02-13 10:03:41 -05:00
Theo Butler 24ba068dce remove randomness from malloc tests 2019-02-13 08:42:51 -05:00
Theo Butler 0ff2301083 use malloc shim in malloc tests 2019-02-13 08:12:07 -05:00
Theo Butler e42551bb15 only build malloc tests on POSIX platforms 2019-02-12 22:05:36 -05:00
theodus a9615bc6aa mark variables unused in release build 2019-02-12 20:22:10 -05:00
Theo Butler f6497e6ee3 Add malloc tests 2019-02-12 19:50:15 -05:00
Paul Liétar 8d8761f248 Make internal symbols hidden. 
Only the malloc/free/... interface is exported.

This allows all of C++'s weak ODR symbols to be resolved at
compile-time, rather than staying weak and resolved at load-time.

Since internal calls don't need to go through the PLT anymore, we get a
nice speedup, at least on small objects.
 2019-02-12 23:27:42 +00:00
Matthew Parkinson a7f0695776
Merge pull request #17 from plietar/fix-align 
Fix the condition on when to allocate a new block.
 2019-02-12 13:10:53 +00:00
Paul Liétar 79b432ddab Fix the condition on when to allocate a new block. 
Previously we would pretty much always allocate a new block for each
allocator, making them 16MiB aligned.
 2019-02-12 12:47:22 +00:00
Matthew Parkinson e004641cec Added to comment. 2019-02-11 14:47:12 +00:00
Matthew Parkinson 9981bad9b5 clang format 2019-02-11 14:47:12 +00:00
Matthew Parkinson 1272078487 Simplified size class calculation 
The rounding code can be integrated directly into the sizeclass code,
which means, the code paths can be simplified slightly.

The special case for zero mantissa bits is not required, as the compiler
generates the same code from the more complex path due to
eliminating dead code after folding the constant zero through.
 2019-02-11 14:47:12 +00:00
Matthew Parkinson fdcad7feb4 Add test for sizeclass calculations 2019-02-11 14:47:12 +00:00
David Chisnall ccd8ec9b4f Disable rtti / exceptions on the non-Windows builds. 
RTTI makes the binaries bigger, exceptions make life harder for
optimisers.  Neither are actually used.

This doesn't preclude anything #including snmalloc.h with RTTI enabled,
it just disables it in the shim libraries and tests.

The FreeBSD libc builds were already doing this with no ill effect.
 2019-02-06 17:46:58 +00:00
Matthew Parkinson 2cd84c80b2 Build shim with 1MiB superslabs. 2019-02-06 17:08:47 +00:00
Matthew Parkinson 731757b29c
Merge pull request #13 from Microsoft/matt-refactor 
Simplification around remote allocation
 2019-02-06 11:25:07 +00:00
Matthew Parkinson f3897dd3e0 Code review feedback. 2019-02-05 16:57:09 +00:00
Matthew Parkinson 83c55fe5da Simplify remote allocator. 
Don't store the sizeclass, as we can find it easily, and already are
going to touch though cache lines in the common case.
 2019-02-05 13:27:19 +00:00
Matthew Parkinson 122a5de811 Refactor code to correctly handle low bits of allocator ID. 2019-02-05 13:11:55 +00:00
David Chisnall fc24b8be3d
Merge pull request #12 from Theodus/override 
Avoid unnecessary allocation from realloc
 2019-02-03 13:30:21 +00:00
theodus ae3f9f6aec Get alloc size without wrapper 2019-02-03 08:19:11 -05:00
theodus 2b8b4c884f Do not realloc if size is in the same sizeclass 2019-02-02 17:28:02 -05:00
theodus 85cf5dd097 Avoid unnecessary allocation from realloc 2019-02-02 14:47:06 -05:00
Matthew Parkinson c0ceb6e08f
Merge pull request #11 from Theodus/master 
Fix assertion failure in memalign
 2019-01-30 17:36:13 +00:00
theodus 61b310d9d6 Fix assertion failure in memalign 2019-01-30 12:14:16 -05:00
Matthew Parkinson a838372989
Merge pull request #10 from Microsoft/hardening 
Hardening allocator
 2019-01-25 23:16:30 +00:00
Matthew Parkinson ec59820970 Use placement new instead of init for metaslab. 2019-01-25 19:46:24 +00:00
Matthew Parkinson 06ff1ffe0a Renamed zero to init for metaslab. 2019-01-25 16:38:10 +00:00
Matthew Parkinson e5c40c1231 Remove an auto as not correctly inferred. 2019-01-24 11:48:02 +00:00
Matthew Parkinson d5fb7150a3 Clang format 2019-01-24 11:39:19 +00:00
Matthew Parkinson 294efe8e03 Hardening access to meta data 
Introduce a wrapper that ensure various fields of meta data, represent
valid indexes into the the address space, and not beyond the current
slab/superslab.
 2019-01-24 11:39:18 +00:00
Matthew Parkinson 2083b29c9b Remove a raw pointer usage 
Metaslab can be handled as as ref, rather than a raw pointer.
 2019-01-24 11:39:18 +00:00
Matthew Parkinson e30c94cb2a Apply ModArray to Metaslab data 
Prevent bugs accessing outside the Slabs meta data.
 2019-01-24 11:39:18 +00:00
Matthew Parkinson 5b81caac87
Merge pull request #9 from Microsoft/two_alloc_types 
Add example for including the allocator with different settings in two compilation units.
 2019-01-24 11:38:20 +00:00
Matthew Parkinson 67fbcba653 Clang format 2019-01-24 11:22:44 +00:00
Matthew Parkinson 28a28bb1ed Simple example of using two allocators in one application. 
Example to simulate using two allocators in one application.  This will
be useful for scenarios in openenclave.
 2019-01-23 13:19:46 +00:00
Matthew Parkinson 5240b3f8c6 Formatting 2019-01-23 11:06:07 +00:00
Matthew Parkinson ef3a578503 Allow __je_bootstrap methods to not be compiled 
The __je_bootstrap.. allocator methods can be specified that they
shouldn't  be compiled using NO_BOOTSTRAP_ALLOCATION.
 2019-01-23 11:05:50 +00:00