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2486 commits

Author SHA1 Message Date
Gareth Rees
78e6d003bb Fix ansi build.
Copied from Perforce
 Change: 193769
2018-06-14 16:58:24 +01:00
Gareth Rees
38a08a6a62 Avoid compilation errors from latest msvc.
Copied from Perforce
 Change: 193768
2018-06-14 16:54:33 +01:00
Gareth Rees
598b64afb4 Support for fork on linux and freebsd.
Copied from Perforce
 Change: 193765
2018-06-14 16:47:23 +01:00
Gareth Rees
61e24c399a 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
2ccdd80953 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
47fc093662 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
169b8dcaf6 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
b9ae05b94f Remove undocumented plinth function mps_lib_assert_fail_expr and rewrite assertp macro to call documented plinth function mps_lib_assert_fail instead.
Copied from Perforce
 Change: 192941
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2017-03-04 11:17:11 +00:00
Gareth Rees
e9df5d6a35 Remove used epvmdefaultsubsequentsegsize.
Copied from Perforce
 Change: 192938
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2017-03-04 11:02:31 +00:00
Gareth Rees
cccb1c1e3c Documentation improvements.
Copied from Perforce
 Change: 192905
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2017-02-18 09:38:15 +00:00
Gareth Rees
4af5b181b3 Fix typos.
Copied from Perforce
 Change: 192890
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2017-02-11 11:30:15 +00:00
Gareth Rees
3389ec396f Add "cold end" and "hot end" to the glossary index.
Copied from Perforce
 Change: 192660
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2016-10-20 13:52:30 +01:00
Gareth Rees
0f4564a71b Merge design.mps.class-interface into design.mps.pool (as suggested by pekka p. pirinen on 1999-07-20).
Bring pool class method descriptions up to date.
Document bufferClass, bufferFill, bufferEmpty, totalSize, freeSize methods.
Document generic instance methods at design.mps.protocol.method.

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 Change: 192642
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2016-10-19 15:34:35 +01:00
Gareth Rees
577b32d481 Cherry-pick change 192595 from custom/cet/main, removing mps_addr_object. this function failed to solve the problem of decoding the stack on 64-bit windows, because the stack may need to be decoded after an mps assertion failure, in which case the arena lock is held and mps_addr_object cannot be called. we eventually solved the problem in a different way (using mps_arena_postmortem) and mps_addr_object is no longer used.
Copied from Perforce
 Change: 192637
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2016-10-19 14:13:38 +01:00
Gareth Rees
9f505c501d Remove unused pool class methods tracebegin and traceend.
Remove unused event AMCTraceEnd.
The fixEmergency method must have the same type as the fix method because of how they are used.

Copied from Perforce
 Change: 192636
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2016-10-19 14:07:20 +01:00
Gareth Rees
8019558576 Use nextmethod to call the superclass init method, instead of calling poolabsinit directly. regularize the error handling.
Copied from Perforce
 Change: 192631
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2016-10-19 11:34:04 +01:00
Gareth Rees
84e59c626e Bring design.mps.message up to date and move it from old to current.
Copied from Perforce
 Change: 192625
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2016-10-18 22:35:13 +01:00
Gareth Rees
2e7a76cc5c Regularize the signature comments, for the benefit of design.mps.sig.test.uniq.
Copied from Perforce
 Change: 192620
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2016-10-18 18:30:50 +01:00
Gareth Rees
c07a54b388 Remove design documents for unsupported operating systems sunos, solaris and osf/1 (protsu, sso1al, vmo1, and vmso).
Update thread-safety and version-library design documents and move them from old to current.

Copied from Perforce
 Change: 192617
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2016-10-18 18:30:09 +01:00
Gareth Rees
52d40d2fed Remove unused functions landcreate and landdestroy.
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 Change: 192603
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2016-10-14 22:30:11 +01:00
Gareth Rees
ce8e22cd8e Split generic mutator context module into two parts: one for generic operating system (prmcan.c) and one for generic architecture (prmcanan.c).
Copied from Perforce
 Change: 192583
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2016-10-14 13:25:14 +01:00
Gareth Rees
9a2d4390b5 Add discriminator to mutatorcontextstruct and implement mutatorcontextinitfault and mutatorcontextinitthread on posix/linux.
Copied from Perforce
 Change: 192577
 ServerID: perforce.ravenbrook.com
2016-10-14 12:39:50 +01:00
Gareth Rees
0e3d8e373d Add discriminator to mutatorcontextstruct and implement mutatorcontextinitfault and mutatorcontextinitthread on os x.
Copied from Perforce
 Change: 192572
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2016-10-14 12:04:01 +01:00
Gareth Rees
1a04431cff New modulefile prmcw3.c avoids duplication of code between prmcw3i3.c and prmcw3i6.c.
Implement MutatorContextCheck on Windows. Add AVERT(MutatorContext, context) in PoolAccess and other functions.
Document initialization functions MutatorContextInitFault and MutatorContextInitThread and implement them on Windows.
Add a union discriminator to MutatorContextStruct on Windows so that we don't accidentally try to get the stack pointer from a fault context, or the exception address from a thread context.

Copied from Perforce
 Change: 192567
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2016-10-14 11:53:26 +01:00
Gareth Rees
4457a77a07 Initialization and checking of mutatorcontext data structures.
New files prmcix.c and prmcxc.c avoid duplicated code.

Copied from Perforce
 Change: 192562
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2016-10-13 23:13:40 +01:00
Gareth Rees
0abb95e025 Use protsgix.c on linux and delete protli.c.
Copied from Perforce
 Change: 192556
 ServerID: perforce.ravenbrook.com
2016-10-13 21:24:04 +01:00
Gareth Rees
a4064881dc In protsgix.c, construct a mutatorcontext object and pass it to arenaaccess.
Copied from Perforce
 Change: 192550
 ServerID: perforce.ravenbrook.com
2016-10-13 20:12:32 +01:00
Gareth Rees
139611337a Fix "make testmmqa" on freebsd (the shell doesn't do {a,b,c} expansion).
Copied from Perforce
 Change: 192545
 ServerID: perforce.ravenbrook.com
2016-10-13 19:31:25 +01:00
Gareth Rees
613f3f56f1 Fix comment: ll = clang/llvm, not gcc.
Copied from Perforce
 Change: 192540
 ServerID: perforce.ravenbrook.com
2016-10-13 19:15:27 +01:00
Gareth Rees
ba896883ba Fix makefile, accidentally broken by change 192512.
Copied from Perforce
 Change: 192539
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2016-10-13 19:13:31 +01:00
Gareth Rees
9b3e45e883 Implement mutatorcontextsp and mutatorcontextscan for platforms w3i3 and w3i6.
This means that ThreadScan becomes identical on these two platforms and can be moved to thw3.c.
This means that thw3.h, thw3i3.c and thw3i6.c become redundant and can be deleted.

Copied from Perforce
 Change: 192534
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2016-10-13 16:28:50 +01:00
Gareth Rees
d83934de69 Remove return statements that have no effect.
Copied from Perforce
 Change: 192529
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2016-10-13 15:17:50 +01:00
Gareth Rees
b4a3d0824b Rename the "protection mutator context" module to "mutator context" (this module handles mutator context decoding for both the protection module and the thread module).
Rename functions Prot{Can,}StepInstruction to MutatorContext{Can,}StepInstruction so that they follow the naming convention in guide.implc.naming.prefix.program.
Move mutator context declarations out of prot.h into new header prmc.h.
Correct .assume.null in a couple of places -- it's not safe for MutatorContextStepInstruction to return ResUNIMPL, instead MutatorContextCanStepInstruction should return FALSE.

Copied from Perforce
 Change: 192528
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2016-10-13 15:06:14 +01:00
Gareth Rees
437bf9c6a4 Rename mutatorfaultcontext to mutatorcontext because this data structure is not only used to store the context of a fault, but also to store the context of a thread that has been suspended.
Copied from Perforce
 Change: 192523
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2016-10-13 14:23:39 +01:00
Gareth Rees
34be22b383 Remove undocumented global mps_exception_info. now that the mps is open source, there is no difficulty in debugging the mutator context.
Copied from Perforce
 Change: 192518
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2016-10-13 13:45:31 +01:00
Gareth Rees
d2f3bc0e36 Fix testmmqa target in the hot variety.
Copied from Perforce
 Change: 192515
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2016-10-13 13:31:58 +01:00
Gareth Rees
d0ae56d7dd Rename prot{i3,i6}.c to prmc{i3,i6}.c because these files are part of the protection mutator context module.
Rename prmc{i3,i6}{fr,li,w3,xc}.c to prmc{fr,li,w3,xc}{i3,i6}.c for consistency of ordering of platform codes (OS before AR before CT).

Copied from Perforce
 Change: 192512
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2016-10-13 13:24:47 +01:00
Gareth Rees
62be09b5e9 Revert incorrect change to globalspreparetodestroy (see change 192365) that made the mps assert when destroying an arena with uncollected finalization messages.
Copied from Perforce
 Change: 192473
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2016-09-27 11:57:19 +01:00
Gareth Rees
afbc6e32d7 The mmqa runset command now takes multiple test-sets.
Copied from Perforce
 Change: 192418
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2016-09-14 16:24:34 +01:00
Gareth Rees
1a86f372b4 Update following release 1.116.0.
Copied from Perforce
 Change: 192406
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2016-09-14 14:18:17 +01:00
Gareth Rees
d393296238 Don't set stackprobedepth to 500 if config_pf_ansi is defined -- this leads to an assertion failure in span.c.
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 Change: 192393
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2016-09-14 13:03:27 +01:00
Gareth Rees
d5aa38cf65 Account allocations in amc segments between whiten and reclaim as condemned, improving the accuracy of the mortality calculation and avoiding assertion failure.
Copied from Perforce
 Change: 192387
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2016-09-14 12:49:51 +01:00
Gareth Rees
6398c5140d Update mps_release in preparation for forthcoming release 1.116.0.
Copied from Perforce
 Change: 192370
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2016-09-13 17:43:39 +01:00
Gareth Rees
62f3be6400 Merge branch/2016-09-06/job004006.
Copied from Perforce
 Change: 192365
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2016-09-13 17:32:07 +01:00
Gareth Rees
d43cc4ef35 Fix problems noted in review.
Copied from Perforce
 Change: 192357
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2016-09-13 17:19:07 +01:00
Gareth Rees
cb0c6eabef Catch-up merge from custom/cet/branch/2016-09-13/job004006 to branch/2016-09-06/job004006.
Copied from Perforce
 Change: 192351
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2016-09-13 15:33:31 +01:00
Gareth Rees
e8be3323ff Usability improvements for mmqa:
* -i option (MPS_INCLUDE_DIR) now defaults to the code directory relative to the test harness location.
* -p option (PLATFORM) is now a six-character platform code for consistency with the rest of the MPS.
* New -v option (VARIETY) for specifying cool/hot/rash.
* -l option (MPS_LINK_OBJ) now defaults to the appropriate object file for the platform and variety.
* The object file is built automatically.
* If $Id$ of a test file is longer than 70 characters, cut characters out of the middle rather than off the end.
* Eliminate obsolete option -prod (MPS_PRODUCT).
* Support for FreeBSD.

Copied from Perforce
 Change: 192285
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2016-09-12 11:55:36 +01:00
Gareth Rees
d56741e1ea In order to be able to test mps_arena_busy in all build configurations, we must always take and release the arena lock, even in the single-threaded case. we gain some additional checking by doing this, at low cost (since in this build configuration the locks are generic and so just increment/decrement a count of claims).
In the CONFIG_POLL_NONE we configuration, we would still like to check that no traces are busy when leaving the arena, but since we now call ArenaLeave in this configurations, move the assertion to ShieldLeave.
In ArenaDestroy, call ArenaLeave, don't just release the lock.

Copied from Perforce
 Change: 192267
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2016-09-09 13:01:25 +01:00
Gareth Rees
b21f8b7e9a Improve documentation.
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 Change: 192258
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2016-09-09 11:18:12 +01:00
Gareth Rees
be5db32120 Lockisheld implementation for generic ("ansi") locks.
When CONFIG_THREAD_SINGLE is defined, use the generic lock module rather than compiling out all lock calls via lock.h. (Otherwise test cases that check LockIsHeld will fail.)

Copied from Perforce
 Change: 192254
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2016-09-09 11:01:04 +01:00