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2486 commits

Author SHA1 Message Date
Gareth Rees
d22656c8c4 Catch-up merge from the master sources at changelevel 194194 to branch/2017-03-04/seg-methods. 
Copied from Perforce
 Change: 194267
 2018-06-28 13:52:36 +01:00
Gareth Rees
70c6338f9e Clarify some assertion conditions. 
Copied from Perforce
 Change: 194194
 2018-06-26 12:36:53 +01:00
Gareth Rees
421f73cdef Fix issues identified in review by dl. 
Copied from Perforce
 Change: 194184
 2018-06-26 11:31:33 +01:00
Gareth Rees
78a544c11a Return resparam for consistency with other describe functions. 
Copied from Perforce
 Change: 194167
 2018-06-26 09:11:57 +01:00
Gareth Rees
af4dceecd9 Test cases for errors in finalization. 
Copied from Perforce
 Change: 194166
 2018-06-26 09:01:46 +01:00
Gareth Rees
b873c82d99 Use unsigned for rootvar and locusprefkind typedefs. 
Copied from Perforce
 Change: 194161
 2018-06-26 08:48:31 +01:00
Gareth Rees
0b0c747d46 Fix copy-paste error. 
Copied from Perforce
 Change: 194128
 2018-06-23 20:49:17 +01:00
Gareth Rees
7b754520fd Consistent order to prologue: include "mpm.h"; platform check; include other mps headers; include system headers; srcid. 
Copied from Perforce
 Change: 194107
 2018-06-23 11:31:57 +01:00
Gareth Rees
30245c19b1 Avoid duplicate tag nams. 
Copied from Perforce
 Change: 194081
 2018-06-22 09:45:24 +01:00
Gareth Rees
bd5a075fd2 In gcc 7.3, -wextra sets -wimplicit-fallthough=3, which is rather strict about the format of the "fall through" comment. 
Copied from Perforce
 Change: 194064
 2018-06-21 17:38:27 +01:00
Gareth Rees
6d3b228200 Fix issues identified in review by apt. 
Copied from Perforce
 Change: 193982
 2018-06-19 14:51:56 +01:00
Gareth Rees
c6af54572d No need for empty atfork handlers, can pass null to pthread_atfork. 
Copied from Perforce
 Change: 193963
 2018-06-19 08:57:26 +01:00
Gareth Rees
89a4b0378a Simplify the wasmarked protocol. 
Copied from Perforce
 Change: 193940
 2018-06-18 20:03:13 +01:00
Gareth Rees
76b082ab3c Assertions on the critical path. 
Copied from Perforce
 Change: 193879
 2018-06-18 13:17:42 +01:00
Gareth Rees
43eea5a7a4 Awlsegcreate is a thin wrapper around poolgenalloc, so it's simpler just to call the latter. 
Copied from Perforce
 Change: 193874
 2018-06-18 09:39:18 +01:00
Gareth Rees
1987144308 Losegcreate is a thin wrapper around poolgenalloc, so it's simpler just to call the latter. 
Copied from Perforce
 Change: 193869
 2018-06-18 09:29:33 +01:00
Gareth Rees
361f82a819 Amcsegfixinplace is a better name for a function that operates on an amc segment. 
Copied from Perforce
 Change: 193856
 2018-06-16 18:47:14 +01:00
Gareth Rees
6cda91e1ee Keep forward declarations for seg methods together. 
Copied from Perforce
 Change: 193842
 2018-06-15 14:55:40 +01:00
Gareth Rees
de94fe2aa3 Catch-up merge from master sources at change 193831 to branch/2017-03-04/seg-methods. 
Copied from Perforce
 Change: 193836
 2018-06-15 13:46:23 +01:00
Gareth Rees
f5ffaeb349 Mach_thread_self() can in theory "return mach_port_null if a resource shortage prevented the reception of the send right" so add a check in each case. (there's nothing we can do about it but at least we can notice.) 
Copied from Perforce
 Change: 193831
 2018-06-15 12:54:28 +01:00
Gareth Rees
e9d454d796 It's safe to register a thread multiple times on macos, so there is no need for the guard. 
Copied from Perforce
 Change: 193828
 2018-06-15 12:44:51 +01:00
Gareth Rees
307bc47730 Rename "mac os x" and "os x" to "macos", except for a few cases where for historical accuracy we want to continue to refer to the former name. 
Copied from Perforce
 Change: 193821
 2018-06-15 12:15:36 +01:00
Gareth Rees
81874fdf08 Fix typo. 
Copied from Perforce
 Change: 193811
 2018-06-15 11:15:42 +01:00
Gareth Rees
b0a73a5c71 Refactor atfork code to improve separation of concerns. 
Copied from Perforce
 Change: 193806
 2018-06-15 10:58:33 +01:00
Gareth Rees
4eeac719ad Start the collection and dereference the objects in the parent as well as the child. 
Copied from Perforce
 Change: 193800
 2018-06-15 10:06:59 +01:00
Gareth Rees
ad432cf7c4 Fix issues identified in review by nb. 
Copied from Perforce
 Change: 193793
 2018-06-14 19:31:30 +01:00
Gareth Rees
b1ac192a9a Update design history. restore accidentally removed check. 
Copied from Perforce
 Change: 193787
 2018-06-14 17:55:03 +01:00
Gareth Rees
6fda834973 Improve comments. 
Copied from Perforce
 Change: 193783
 2018-06-14 17:44:41 +01:00
Gareth Rees
612b44060f Fix ansi build. 
Copied from Perforce
 Change: 193769
 2018-06-14 16:58:24 +01:00
Gareth Rees
b5e1965b3d Avoid compilation errors from latest msvc. 
Copied from Perforce
 Change: 193768
 2018-06-14 16:54:33 +01:00
Gareth Rees
f92f645f63 Support for fork on linux and freebsd. 
Copied from Perforce
 Change: 193765
 2018-06-14 16:47:23 +01:00
Gareth Rees
e70b4c273c Take locks before fork(), release them in the parent and reinitialize them in the child. 
Add forktest target to the Xcode project.
Write design for fork safety and cross-reference from the code.
Update release notes.

Copied from Perforce
 Change: 193760
 2018-06-14 16:25:08 +01:00
Gareth Rees
2401957e62 Extend forktest so that it does allocation before the fork and collection afterwards; this ensures that we hit the read barrier and thus exercise the exception handling. 
After forking in the child, re-create exception port and exception thread, and re-register the (only) thread with that port.

Copied from Perforce
 Change: 193755
 2018-06-14 12:54:35 +01:00
Gareth Rees
8146970622 Add fork test case (fails on os x if pthread_atfork is not called). 
pthread_atfork handlers on OS X: in the child, update the mach port for the forking thread and move all other threads to the dead ring.

Copied from Perforce
 Change: 193746
 2018-06-13 17:09:07 +01:00
Gareth Rees
9de5c1dfbe Avoid using deprecated function mps_fix and deprecated macro mps_fix in the test cases; use mps_fix12 instead. 
Copied from Perforce
 Change: 193726
 2018-06-13 13:59:14 +01:00
Gareth Rees
52d6325133 New pool method poolsegpoolgen gets the pool generation for a segment. (this allows the segment whiten and reclaim methods not to need to know the pool class.) 
Copied from Perforce
 Change: 193084
 ServerID: perforce.ravenbrook.com
 2017-03-31 13:28:25 +01:00
Gareth Rees
2a24ad79df Since we know that a segment belongs to a pool with a format at the point where we call segwalk, it makes sense to pass the format. 
Copied from Perforce
 Change: 193079
 ServerID: perforce.ravenbrook.com
 2017-03-31 09:15:41 +01:00
Gareth Rees
e615adda88 Avoid "result of 32-bit shift implicitly converted to 64 bits" warning from visual c. 
Check AWL pool generation.
Update design.

Copied from Perforce
 Change: 193076
 ServerID: perforce.ravenbrook.com
 2017-03-31 09:03:38 +01:00
Gareth Rees
a697ef913f Move alignshift to pool structure allows us to eliminate duplicate code between awl and lo. 
Copied from Perforce
 Change: 193071
 ServerID: perforce.ravenbrook.com
 2017-03-31 08:41:14 +01:00
Gareth Rees
49ba7045fc Only walk segments belonging to pools with an object format. 
Copied from Perforce
 Change: 193066
 ServerID: perforce.ravenbrook.com
 2017-03-31 08:05:59 +01:00
Gareth Rees
2962cdff8b Check that arena, buffer, land classes override sets of related methods. 
Copied from Perforce
 Change: 193060
 ServerID: perforce.ravenbrook.com
 2017-03-30 20:43:43 +01:00
Gareth Rees
17c1449096 Check that segment classes override sets of related methods. 
Add missing finish functions amcSegFinish, mrgLinkSegFinish, mrgRefSegFinish, sncSegFinish.
Check all class constructor results.

Copied from Perforce
 Change: 193055
 ServerID: perforce.ravenbrook.com
 2017-03-30 11:37:41 +01:00
Gareth Rees
fd9cb83ec5 Avoid "format may be used uninitialized" warning. 
Copied from Perforce
 Change: 193050
 ServerID: perforce.ravenbrook.com
 2017-03-30 10:42:40 +01:00
Gareth Rees
79c2263d53 No need for poolclassmixinscan and abstractscanpool. 
Copied from Perforce
 Change: 193045
 ServerID: perforce.ravenbrook.com
 2017-03-30 10:23:15 +01:00
Gareth Rees
d4a68602ff Changing segnowalk to segtrivwalk avoids the need for attrfmt (now we can walk all segments). 
Copied from Perforce
 Change: 193044
 ServerID: perforce.ravenbrook.com
 2017-03-30 10:18:22 +01:00
Gareth Rees
2ffd832103 Move access method from pool class to segment class. 
Copied from Perforce
 Change: 193039
 ServerID: perforce.ravenbrook.com
 2017-03-30 09:55:37 +01:00
Gareth Rees
8ab47f84d1 Remove unused variable pool. 
Copied from Perforce
 Change: 193034
 ServerID: perforce.ravenbrook.com
 2017-03-30 09:19:54 +01:00
Gareth Rees
a400239f7e Move walk method from pool class to segment class. 
Copied from Perforce
 Change: 193028
 ServerID: perforce.ravenbrook.com
 2017-03-30 08:54:35 +01:00
Gareth Rees
b7a490ae32 Move fix and fixemergency methods from pool class to segment class. 
Copied from Perforce
 Change: 193023
 ServerID: perforce.ravenbrook.com
 2017-03-30 08:09:14 +01:00
Gareth Rees
9734df3505 Remove unused fixclosure field from trace and scanstate structures. 
Copied from Perforce
 Change: 193018
 ServerID: perforce.ravenbrook.com
 2017-03-30 07:14:10 +01:00