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2354 commits

Author SHA1 Message Date
Gareth Rees
baf2277b30 Catch-up merge from the master sources. 
Copied from Perforce
 Change: 192170
 ServerID: perforce.ravenbrook.com
 2016-09-05 15:21:33 +01:00
Gareth Rees
18e0381952 When injecting allocation failures to test the fail-over land, don't also inject failures into the arena's free land's block pool. 
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 Change: 192164
 ServerID: perforce.ravenbrook.com
 2016-09-05 13:17:59 +01:00
Gareth Rees
b9b1ad9074 Correct the logic in mvfreesize -- lost spans are not accounted as free. only sum the free space in the spans in checking varieties, otherwise just return the cached sum. 
Copied from Perforce
 Change: 192159
 ServerID: perforce.ravenbrook.com
 2016-09-05 12:03:46 +01:00
Gareth Rees
d7e36f8dbb Don't pick a grain size that's so large that you can't avoid hitting the commit limit. 
Copied from Perforce
 Change: 192154
 ServerID: perforce.ravenbrook.com
 2016-09-05 11:37:19 +01:00
Gareth Rees
49198a35ee Add _critical to assertions on the critical path for manual-allocation-bound programs using mvff. this brings the hot/rash ratio for "djbench mvff" down from over 150% to about 130%. 
Copied from Perforce
 Change: 192148
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 2016-09-04 19:20:05 +01:00
Gareth Rees
4dd6e899f5 Build and test the toy scheme interpreter during continuous integration, to reduce the risk of accidentally breaking it. 
Copied from Perforce
 Change: 192133
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 2016-09-04 14:47:08 +01:00
Gareth Rees
8005cb5f77 Initialize in/out parameter old_exception_count before passing it to thread_swap_exception_ports. 
Copied from Perforce
 Change: 192128
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 2016-09-04 14:28:28 +01:00
Gareth Rees
0400178bf4 Support registering a thread with the mps multiple times on os x. 
Restore test case.

Copied from Perforce
 Change: 192127
 ServerID: perforce.ravenbrook.com
 2016-09-04 14:23:07 +01:00
Gareth Rees
08bd2f3474 New preprocessor constants config_pthreadext_sigsuspend and config_pthreadext_sigresume for configuring the signals used to suspend and resume threads. 
Copied from Perforce
 Change: 192122
 ServerID: perforce.ravenbrook.com
 2016-09-04 13:55:39 +01:00
Gareth Rees
89b1b02ee5 Add a case for rootthread to rootcheck. 
Add test coverage for mps_root_create_thread_scanned and mps_root_create_area; improve coverage for mps_root_create_area_tagged, mps_scan_area_tagged, mps_scan_area.

Copied from Perforce
 Change: 192111
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 2016-09-04 11:56:09 +01:00
Gareth Rees
7d5e5ac0e0 Avoid strict aliasing errors in the mps test suite, so that it compiles and runs using gcc 6.1. 
Update the manual entries for mps_alloc and mps_sac_alloc with notes highlighting the problem.

Copied from Perforce
 Change: 192104
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 2016-09-02 19:20:58 +01:00
Gareth Rees
55adbe705d Fix assertion text in the manual. 
Place a cross-reference by each assertion the appears in the manual, to assist in keeping the manual up to date.

Copied from Perforce
 Change: 192097
 ServerID: perforce.ravenbrook.com
 2016-09-02 14:11:08 +01:00
Gareth Rees
9b81dcb5c4 New program mpseventpy emits python data structures representing telemetry events. 
Copied from Perforce
 Change: 191895
 ServerID: perforce.ravenbrook.com
 2016-06-02 15:02:05 +01:00
Gareth Rees
6f196185a1 Make shield assertions robust against deep checking -- when shieldcover is called from shieldraise there is one unsynced segment that has not yet been queued. record this fact in a new queuepending flag in the shield structure. 
Remove incorrect shield assertion "shield->depth == 0 || shield->suspended" -- depth may be increased without suspending the mutator if the segment did not need protecting.

Copied from Perforce
 Change: 191812
 ServerID: perforce.ravenbrook.com
 2016-05-03 17:25:27 +01:00
Gareth Rees
11944d44c2 Patch the mfs pool's alloc method instead of rewriting its class -- the latter violates the class invariants and so asserts when deep checking is turned on. 
Copied from Perforce
 Change: 191779
 ServerID: perforce.ravenbrook.com
 2016-05-02 13:49:43 +01:00
Gareth Rees
fa2fced306 Clear the emergency before removing the trace from busytraces, to avoid violating <code/global.c#emergency.invariant>. 
Copied from Perforce
 Change: 191774
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 2016-05-02 13:06:07 +01:00
Richard Brooksby
e26f0b64e5 Replacing segbuffer with version that returns bool and the buffer, and disallowing null to segsetbuffer, adding setunsetbuffer for that case instead. 
Copied from Perforce
 Change: 191695
 ServerID: perforce.ravenbrook.com
 2016-04-27 15:47:26 +01:00
Richard Brooksby
9a6981ae41 Temporarily introducing seggetbuffer to eliminate use of "null" to mean "no buffer". 
Copied from Perforce
 Change: 191694
 ServerID: perforce.ravenbrook.com
 2016-04-27 15:27:47 +01:00
Richard Brooksby
a2ce7619a1 Turning buffer describe methods the right way in, so that they use next-method. 
Copied from Perforce
 Change: 191589
 ServerID: perforce.ravenbrook.com
 2016-04-23 00:57:46 +01:00
Richard Brooksby
056a298003 Turning segment describe methods the right way in, so that they call next-method. deleting duplicate implementation of basic segment describe! 
Copied from Perforce
 Change: 191588
 ServerID: perforce.ravenbrook.com
 2016-04-23 00:48:48 +01:00
Richard Brooksby
a8e91f0ac8 Turning pool describe methods the right way in, so that they call next-method. 
Copied from Perforce
 Change: 191587
 ServerID: perforce.ravenbrook.com
 2016-04-23 00:22:46 +01:00
Gareth Rees
10f07e4e0b The computed chunk size is the smallest size with a given number of usable bytes -- the actual chunk may be one grain larger. 
Copied from Perforce
 Change: 191574
 ServerID: perforce.ravenbrook.com
 2016-04-22 17:04:50 +01:00
Gareth Rees
ea578a4939 Catch-up merge from master sources to branch/2016-04-20/seghasbuffer. 
Copied from Perforce
 Change: 191548
 ServerID: perforce.ravenbrook.com
 2016-04-22 11:38:55 +01:00
Gareth Rees
7d30523dcd New function seghasbuffer. 
Copied from Perforce
 Change: 191537
 ServerID: perforce.ravenbrook.com
 2016-04-22 10:08:29 +01:00
Gareth Rees
fb3e4144a9 Untabify. 
Copied from Perforce
 Change: 191528
 ServerID: perforce.ravenbrook.com
 2016-04-21 20:50:45 +01:00
Richard Brooksby
10e79f5335 Merging branch/2016-04-08/protidying into master sources. 
Copied from Perforce
 Change: 191498
 ServerID: perforce.ravenbrook.com
 2016-04-21 17:18:36 +01:00
Richard Brooksby
49eb33c49a Supressing "may be used uninitialized" warnings from gcc. 
Copied from Perforce
 Change: 191489
 ServerID: perforce.ravenbrook.com
 2016-04-21 15:34:20 +01:00
Gareth Rees
05d31d83f3 Just report the performance ratio, don't fail if it's too large (to avoid continuous integration failures). 
Copied from Perforce
 Change: 191486
 ServerID: perforce.ravenbrook.com
 2016-04-21 15:33:08 +01:00
Richard Brooksby
71db43d79b Minor comment fix. 
Copied from Perforce
 Change: 191481
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 2016-04-21 15:27:42 +01:00
Richard Brooksby
f288d65473 Removing bogus arenatrivdescribe and turning arenadescribe the right way in. 
Copied from Perforce
 Change: 191480
 ServerID: perforce.ravenbrook.com
 2016-04-21 15:27:41 +01:00
Richard Brooksby
53b29cf030 Typo. 
Copied from Perforce
 Change: 191479
 ServerID: perforce.ravenbrook.com
 2016-04-21 15:27:41 +01:00
Richard Brooksby
e0b41dd166 Eliminating special case of amsinitinternal, since amst can now just use a standard next-method. 
Copied from Perforce
 Change: 191476
 ServerID: perforce.ravenbrook.com
 2016-04-21 15:24:51 +01:00
Richard Brooksby
efb1d94578 Catch-up merge from master sources to branch/2016-04-08/protidying. 
Copied from Perforce
 Change: 191471
 ServerID: perforce.ravenbrook.com
 2016-04-21 14:46:10 +01:00
Richard Brooksby
be8cf2ce96 Enforcing rules about class overrides that were dropped in changelist 190837. 
Copied from Perforce
 Change: 191453
 ServerID: perforce.ravenbrook.com
 2016-04-21 13:41:27 +01:00
Richard Brooksby
518559fe9b Merging branch/2016-04-21/ld-history into master sources. 
Copied from Perforce
 Change: 191447
 ServerID: perforce.ravenbrook.com
 2016-04-21 13:07:10 +01:00
Gareth Rees
ac3088c13c Correct the documentation for mps_collections. 
In finalcv, don't rely on mps_collections to terminate the test case: use garbage collection messages.

Copied from Perforce
 Change: 191442
 ServerID: perforce.ravenbrook.com
 2016-04-21 12:34:26 +01:00
Richard Brooksby
c42fc6c016 Responding to review by gdr <https://info.ravenbrook.com/mail/2016/04/21/09-36-07/0/>. 
Copied from Perforce
 Change: 191432
 ServerID: perforce.ravenbrook.com
 2016-04-21 10:56:35 +01:00
Gareth Rees
87e9184940 Increase target ratios to reduce false positives. 
Copied from Perforce
 Change: 191420
 ServerID: perforce.ravenbrook.com
 2016-04-21 09:12:16 +01:00
Richard Brooksby
930b6a315b Moving location dependency history into its own structure to reduce arenastruct bloat. 
Copied from Perforce
 Change: 191417
 ServerID: perforce.ravenbrook.com
 2016-04-21 09:05:34 +01:00
Richard Brooksby
2071adc5fe Removing unused (and useless) poolfix macro. 
Copied from Perforce
 Change: 191407
 ServerID: perforce.ravenbrook.com
 2016-04-21 08:59:52 +01:00
Gareth Rees
7e8d63a21c Merge branch/2016-04-11/job003998. 
Copied from Perforce
 Change: 191388
 ServerID: perforce.ravenbrook.com
 2016-04-20 17:56:59 +01:00
Gareth Rees
f53a73cf02 Pass the -p (posix output) option to /usr/bin/time so that the results are portable between os x and linux. 
Copied from Perforce
 Change: 191378
 ServerID: perforce.ravenbrook.com
 2016-04-20 16:19:38 +01:00
Gareth Rees
5581b66e91 Merge branch/2016-04-19/job004011. 
Copied from Perforce
 Change: 191374
 ServerID: perforce.ravenbrook.com
 2016-04-20 16:00:43 +01:00
Gareth Rees
bbeb6af490 Merge branch/2016-04-19/job004007. 
Copied from Perforce
 Change: 191371
 ServerID: perforce.ravenbrook.com
 2016-04-20 15:56:32 +01:00
Gareth Rees
10be1ec77f Initialize arena->zoneshift to zoneshiftunset (which is not a valid shift) and modify the arena checking to spot this value. previously a default shift value (namely 20) was used, but this value was bogus as the zone shift is not determined until the class initialization runs. 
Copied from Perforce
 Change: 191370
 ServerID: perforce.ravenbrook.com
 2016-04-20 15:51:16 +01:00
Gareth Rees
077926ceec Performance ratio test uses cpu time (not real time). use awk instead of dc to avoid having to install a package. 
Copied from Perforce
 Change: 191365
 ServerID: perforce.ravenbrook.com
 2016-04-20 15:07:22 +01:00
Richard Brooksby
fe91fa9480 Squelching bogus type pun warnings from gcc 4.7 to get a clean build in travis ci. 
Adding platform XCI6GC to allow faster debugging of CI builds on Mac OS X with MacPorts GCC 4.7 installed.  Not otherwise supported.

Copied from Perforce
 Change: 191357
 ServerID: perforce.ravenbrook.com
 2016-04-20 13:59:23 +01:00
Gareth Rees
14d975c6a4 Add a test checking that the hot variety is not too much slower than the rash variety. turn this on for continuous integration testing via "make test". 
Copied from Perforce
 Change: 191339
 ServerID: perforce.ravenbrook.com
 2016-04-20 13:15:18 +01:00
Gareth Rees
7680839e18 Discard all messages retrieved from the queue. 
Copied from Perforce
 Change: 191317
 ServerID: perforce.ravenbrook.com
 2016-04-20 09:35:27 +01:00
Richard Brooksby
c02ab56cee Eliminating poolpoolmfs in favour of mustbea. 
Copied from Perforce
 Change: 191312
 ServerID: perforce.ravenbrook.com
 2016-04-19 23:30:18 +01:00