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73 Commits

Author SHA1 Message Date
Dave Zarzycki
d713c55268 Heap: Sniff out *any* Malloc knobs and fall back on the system malloc 
Swift SVN r18574
 2014-05-22 21:40:10 +00:00
Dave Zarzycki
631e89d205 Heap: enable some runtime asserts that double check the compiler 
This double checks:
<rdar://problem/16979846> Array backing store is leaking
<rdar://problem/16989632> Array backing store sizing is still buggy

Swift SVN r18554
 2014-05-22 05:00:58 +00:00
John McCall
329abe543d Pass an alignment mask during heap array allocation, 
not an alignment value.

Assert that various entrypoints get an alignment mask.

Get everything uniformly passing an assertion about
dealloating an object with the correct allocation
size; don't actually enable the assertion yet, though.

rdar://16989632

Swift SVN r18550
 2014-05-22 01:58:05 +00:00
Dave Zarzycki
842e288377 Heap: pre-compute pthread layout details 
This function is hot enough that this is worth it.

Swift SVN r18521
 2014-05-21 21:14:03 +00:00
Dave Zarzycki
74f29d5138 Heap: cache dlsym() result 
This fixes: <rdar://problem/16991267>

Swift SVN r18520
 2014-05-21 20:59:26 +00:00
Dave Zarzycki
98ce4f3956 Heap: add an assert that would have caught 16979846 
Once 16979846 is fixed, we can double check sizes at free time to ensure
that we're putting them on the right free list.

Swift SVN r18471
 2014-05-20 23:23:57 +00:00
Dave Zarzycki
b46851397c Heap: add missing lock/unlock 
Swift SVN r18468
 2014-05-20 21:26:25 +00:00
Dave Zarzycki
46a77283e1 Heap: track the last allocation per arena correctly 
Swift SVN r18466
 2014-05-20 21:21:13 +00:00
Dave Zarzycki
94d5c81b4b Heap: ignore arena tail loss during enumeration 
<rdar://problem/16953578> SwiftZone malloc enumeration is returning "PTR_IN_USE" blocks that extend past their VM region

Swift SVN r18352
 2014-05-18 21:12:21 +00:00
Dave Zarzycki
732486f8a0 Heap: simplify forEach logic 
Swift SVN r18228
 2014-05-16 23:57:22 +00:00
Dave Zarzycki
46f36e19df Heap: hashing bug feedback 
I personally like ~(cast)0, but (cast)-1 felt more consistent with LLVM
style; and the waffling before finishing my coffee this morning made the
code wrong. Whoops.

Swift SVN r18221
 2014-05-16 22:39:34 +00:00
Dave Zarzycki
dbd023029e Heap: delete dead code 
Swift SVN r18200
 2014-05-16 17:30:23 +00:00
Dave Zarzycki
4bd4a4a6bc Heap: Add tombstones to make the not-found case faster 
This should fix: <rdar://problem/16936107>

Swift SVN r18199
 2014-05-16 17:19:13 +00:00
Dave Zarzycki
5455014d96 Heap: fix pointer-to-arena lookup 
Swift SVN r18198
 2014-05-16 16:43:48 +00:00
John McCall
059ed4cd10 Propagate alignment arguments around through the 
slow allocation/deallocation APIs.

Swift SVN r18160
 2014-05-16 01:40:36 +00:00
Dave Zarzycki
60b4a57b4d Heap: Delete old constant that was fixed in an earlier commit 
Swift SVN r18153
 2014-05-16 00:46:46 +00:00
Dave Zarzycki
5030fe1f83 Heap: make the introspection future proofing build on the buildbot simulator 
Swift SVN r18152
 2014-05-16 00:46:44 +00:00
Dave Zarzycki
792e9bd6f2 Heap: make introspection future proof against OS changes 
Swift SVN r18133
 2014-05-15 22:43:14 +00:00
Dave Zarzycki
6b04e56cce Heap: better hash function names and better hashing 
Swift SVN r18124
 2014-05-15 20:40:21 +00:00
Dave Zarzycki
9dd82e3373 Heap: slowDealloc() design feedback from John 
Swift SVN r18083
 2014-05-14 23:04:33 +00:00
Dave Zarzycki
03d8c146e5 Heap: walk the threads when running leaks and ignore the per-thread caches 
Swift SVN r18030
 2014-05-13 22:09:56 +00:00
Dave Zarzycki
49a5348df2 Heap: DaveP says that this is not needed 
Swift SVN r18029
 2014-05-13 22:09:49 +00:00
Dave Zarzycki
a8d814cfca Heap: Make leaks and friends more accurate 
Swift SVN r18014
 2014-05-13 18:15:19 +00:00
Dave Zarzycki
699ccd21a7 Heap: dead code deletion 
Swift SVN r18013
 2014-05-13 18:15:16 +00:00
Dave Zarzycki
cf4fbe33f5 Heap: Checkpoint leaks/heap/vm_map support 
Huge allocation leaks are detected correctly.
Tiny allocation leaks are problematic, both false positive and false negative.

For example:

leaks Report Version:  2.0
Process 73345: 4980 nodes malloced for 1677 KB
Process 73345: 1 leak for 1048576 total leaked bytes.
Leak: 0x10aed0000  size=1048576  zone: SwiftZone_0x10adc35d8

Swift SVN r18007
 2014-05-13 16:28:44 +00:00
Dave Zarzycki
806d2decd2 Runtime: Fix an oversight with the previous gmalloc fix 
Swift SVN r17951
 2014-05-12 19:30:17 +00:00
Dave Zarzycki
504701bda5 Runtime heap: defer to gmalloc when gmalloc is loaded 
<rdar://problem/13318927> jDisable allocation cache when using gmalloc

Swift SVN r17950
 2014-05-12 19:24:03 +00:00
Dave Zarzycki
b92b64617b Heap: avoid reentrancy when Instruments enables ObjectAlloc 
We need a custom but simple map table for two reasons:
1) To precisely control our allocations to avoid reentrancy via Instruments.
2) To prepare for out-of-process introspection via Mach VM calls.

This fixes: <rdar://problem/16718231> Swift allocator must not call malloc nor global operator new

Swift SVN r17769
 2014-05-09 08:56:37 +00:00
Dave Zarzycki
06731bbe21 Heap feedback: rename _swift_zone_init_ to _swift_zone_initImpl 
Swift SVN r17729
 2014-05-08 23:20:49 +00:00
Dave Zarzycki
8b0c9d4e74 Heap: Let Instruments ensure that the heap is setup correctly at launch 
Swift SVN r17723
 2014-05-08 23:12:57 +00:00
Dave Zarzycki
1326006ed8 Runtime heap/introspection: Instruments team feedback 
Swift SVN r17274
 2014-05-02 21:41:16 +00:00
Dave Zarzycki
1930222f3b Runtime: Instruments support plan B 
Rather than go through reentrant and problematic contortions to make Swift
work with the existing Instruments hooks, they agreed to just patch some
globals that we provide to get their logic to be activated.

Swift SVN r17144
 2014-05-01 06:39:45 +00:00
Dave Zarzycki
fcd4667f08 Runtime heap: add some missing locking 
Swift SVN r17104
 2014-04-30 19:29:56 +00:00
Dave Zarzycki
ff84cce42b Runtime: conditional fallback to pthreads given we don't ship with the OS 
<rdar://problem/15169581> Custom allocation cache cannot assume OS implementation details for 1.0

Swift SVN r16842
 2014-04-25 20:57:03 +00:00
Dave Zarzycki
211afa943f Runtime: better crash debugging/reporting 
Swift SVN r16426
 2014-04-16 21:37:16 +00:00
Dave Zarzycki
3e4f388b1f Runtime: allow realloc 
Nothing should call this. We'll eventually log a warning. For now, this
silences a build warning.

Swift SVN r16061
 2014-04-08 17:54:01 +00:00
Dave Zarzycki
2e76e91466 Runtime: corner case heap policy tweak 
Only the compiler calls this API and the compiler never needs
placeholder heap allocations.

Swift SVN r16060
 2014-04-08 17:54:00 +00:00
Adrian Prantl
af7198811c silence warnings. 
Swift SVN r15839
 2014-04-02 22:54:34 +00:00
Dave Zarzycki
4c97c67a82 Runtime: remove stray debugging hook 
Swift SVN r15819
 2014-04-02 18:46:02 +00:00
Dave Zarzycki
96d1f4760e Runtime heap: mixed fixes that make debugging easier 
Swift SVN r15818
 2014-04-02 18:46:00 +00:00
Dave Zarzycki
e1a60eae86 Runtime: Use 'auto' more. NFC. 
Swift SVN r15817
 2014-04-02 18:45:59 +00:00
Dave Zarzycki
0e8de87f05 Runtime: more SwiftObject API completeness 
Swift SVN r15696
 2014-03-31 22:50:19 +00:00
Dave Zarzycki
09f2e9ed57 WIP Runtime: Zone cleanup to use C++ more. NFC. 
All of the malloc zone APIs are clumsy object-oriented design in C, but that
does not mean we should be too. This should clarify the design more too.

Swift SVN r15690
 2014-03-31 20:06:16 +00:00
Dave Zarzycki
095633f4ba Runtime: Enable Instruments object lifecycle support 
One needs to either set SWIFT_ZONE_DEBUG before launch or call SPI.

Swift SVN r15586
 2014-03-28 20:46:40 +00:00
Dave Zarzycki
ce0c5899d8 Runtime: crude enumeration to generate statistics 
This is foundational work for 'leaks', etc.

Swift SVN r15490
 2014-03-26 06:13:03 +00:00
Dave Zarzycki
c2b486fb91 Runtime: assert on trivial double-free()s 
Swift SVN r15336
 2014-03-21 21:32:10 +00:00
Dave Zarzycki
c9d5bd8a92 Runtime: fix a leak during thread exit 
Swift SVN r15334
 2014-03-21 20:59:10 +00:00
Dave Zarzycki
2b412b4626 Runtime: fix a copy-and-paste error 
<rdar://problem/16386805> Assertion failed: (bytes != 0), function swift_slowDealloc

Swift SVN r15325
 2014-03-21 05:52:04 +00:00
Dave Zarzycki
2cd0940d16 Runtime: make 'vmmap' tool report better data 
Swift SVN r15296
 2014-03-20 21:02:06 +00:00
Dave Zarzycki
2f4d679fd0 Runtime: Drop the "raw" label on normal memory. NFC. 
DI defined away the need for zeroed memory.

Swift SVN r15293
 2014-03-20 20:42:27 +00:00