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42 commits

Author SHA1 Message Date
Ken Brown
b57067e8a0 Support the Cygwin build of MPS 
* mps/code/prmccyi6.c:
* mps/code/cyi6gc.gmk: New files, for the Cygwin build.

* mps/code/config.h:
* mps/code/lockix.c:
* mps/code/prmcix.c:
* mps/code/protix.c:
* mps/code/protsgix.c:
* mps/code/pthrdext.c:
* mps/code/testthr.h:
* mps/code/thix.c:
* mps/code/vmix.c: Port to Cygwin.

* mps/configure.ac (x86_64-*-cygwin*/no): Add definitions for
Cygwin.

* mps/code/mps.c [MPS_PF_CYI6GC]:
* mps/code/mpstd.h: Define 64-bit Cygwin stuff.

* mps/code/gcbench.c: [MPS_OS_CY]:
* mps/code/djbench.c [MPS_OS_CY]: Include alloca.h.

* mps/code/arenacv.c (TEST_ARENA_SIZE) [MPS_OS_CY]: Increase to
make test pass.  (Bug#74805)

* mps/code/arenavm.c (VMArenaCreate): Avoid compiler warning.
 2025-10-08 10:33:45 -04:00
Richard Brooksby
38cc6e4f8e Documenting deprecation of getpagesize(). 2023-03-04 07:56:29 +00:00
Bruce Mitchener
322dc834d9 Unix: use sysconf(_sc_pagesize), not getpagesize() 
The `getpagesize()` is a legacy function and is not available
in the default configurations on some platforms.

The documentation for `getpagesize()` recommends using the POSIX
`sysconf(_SC_PAGESIZE)` instead.

Additionally, `sysconf(_SC_PAGESIZE)` returns a `long` rather than
an `int`, so the code is updated to handle that as well.

Sources:

* https://man7.org/linux/man-pages/man2/getpagesize.2.html
* https://pubs.opengroup.org/onlinepubs/7908799/xsh/getpagesize.html
 2023-03-04 14:11:09 +07:00
Richard Brooksby
8ab5806e31 Adding narrowing cast to suppress warning on fri6ll. 2023-01-11 18:18:51 +00:00
Gareth Rees
3818bf1e06 Handle errors from mmap and mprotect due to apple hardened runtime. 
On Apple Silicon, when Hardened Runtime is in force and the
application lacks the "Allow Unsigned Executable Memory Entitlement",
mmap and mprotect return EACCES when an attempt is made to create or
modify memory so that it is simultaneously writable and executable.

This commit handles these cases by retrying the operation without the
PROT_EXEC flag, and setting global variables so that future operations
omit the flag.
 2023-01-06 18:31:54 +00:00
Gareth Rees
f47c389a52 Fix indentation of second clause of license. 2020-08-30 10:13:06 +01:00
Gareth Rees
af0f431eda Use https: instead of http: when linking to the ravenbrook web site. 2020-08-30 10:13:03 +01:00
Peter Jackson
4de2606846 Publish licence updates in code directory. 
Publish minor changes to readme and configure files in main directory.
Main directory and code directory licence texts are now fully updated.

Copied from Perforce
 Change: 196994
 2020-06-11 17:05:40 +01:00
Gareth Rees
4eda4e85c7 Use tags with dots; regularize design references from code. 
Copied from Perforce
 Change: 195761
 2018-11-29 17:12:29 +00:00
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
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
61a58b9b50 Fix problems noted by rb in review <https://info.ravenbrook.com/mail/2014/06/18/14-06-43/0/> 
Copied from Perforce
 Change: 186667
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 2014-06-18 15:36:35 +01:00
Gareth Rees
ef7bb2c997 Catch-up merge from branch/2014-05-28/align to branch/2014-06-14/vm. 
Copied from Perforce
 Change: 186664
 ServerID: perforce.ravenbrook.com
 2014-06-17 15:52:16 +01:00
Gareth Rees
5fb05e31b6 Fix problems noted by dl in review <https://info.ravenbrook.com/mail/2014/06/17/13-35-38/0/>. 
Copied from Perforce
 Change: 186662
 ServerID: perforce.ravenbrook.com
 2014-06-17 15:15:32 +01:00
Gareth Rees
513bc73827 Put the portable part of the vm interface in its own module. 
Copied from Perforce
 Change: 186630
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 2014-06-14 16:09:06 +01:00
Gareth Rees
22ff6914e2 Macros for vmbase etc. 
Copied from Perforce
 Change: 186626
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 2014-06-14 15:50:13 +01:00
Gareth Rees
e95af3fb0e Store the vm descriptor in the vmarena and vmchunk structures. 
Copied from Perforce
 Change: 186624
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 2014-06-14 15:12:26 +01:00
Gareth Rees
060cf69bfb Fix compilation on windows. 
Copied from Perforce
 Change: 186594
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 2014-06-13 18:18:06 +01:00
Gareth Rees
8d9b6c0884 Improve the diff and make the vm implementations more closely parallel. 
Copied from Perforce
 Change: 186591
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 2014-06-13 17:59:37 +01:00
Gareth Rees
f39706c2be Now that we can call vmpagesize without having a vm to hand, the implementation of vmcreate can be simpler: in particular, the grain size can already be correctly rounded up. 
Copied from Perforce
 Change: 186590
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 2014-06-13 17:39:58 +01:00
Gareth Rees
8c3e5886b4 Vmpagesize now takes no arguments -- this avoids suggesting (incorrectly) that it might return a different value for each vm. 
New function ProtGranularity returns the protection granularity of the operating system. (On all currently supported operating systems this is the same as the granularity of memory mapping returned by VMPageSuze, but it's important to separate these concepts.) MPMCheck asserts that the granularity of memory mapping is a multiple of the granularity of protection.
Client arena supports MPS_KEY_ARENA_GRAIN_SIZE.
Some of the test cases set the arena grain size.

Copied from Perforce
 Change: 186588
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 2014-06-13 17:19:23 +01:00
Gareth Rees
cd291a5f7a Merge branch/2014-06-11/grain into branch/2014-05-28/align. 
Copied from Perforce
 Change: 186561
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 2014-06-13 13:35:14 +01:00
Gareth Rees
3aabbcfa48 Rename vmgrainsize to vmpagesize (because it is in fact the operating system page size) and to avoid confusion with the arena grain size. 
Copied from Perforce
 Change: 186543
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 2014-06-12 17:18:50 +01:00
Gareth Rees
b12e31ed9d Fix problems identified by dl in review <https://info.ravenbrook.com/mail/2014/06/12/15-04-02/0/>. 
Copied from Perforce
 Change: 186542
 ServerID: perforce.ravenbrook.com
 2014-06-12 17:11:09 +01:00
Gareth Rees
26e8aecdf2 Rename grainsizecheck as arenagrainsizecheck. 
Copied from Perforce
 Change: 186506
 ServerID: perforce.ravenbrook.com
 2014-06-11 17:33:10 +01:00
Gareth Rees
41e2d84377 Rename "arena alignment" to "arena grain size" to avoid confusion with ordinary structure alignment. 
Copied from Perforce
 Change: 186503
 ServerID: perforce.ravenbrook.com
 2014-06-11 17:13:03 +01:00
Gareth Rees
73f4dd72be Configurable arena alignment on windows. 
Copied from Perforce
 Change: 186380
 ServerID: perforce.ravenbrook.com
 2014-05-30 13:53:01 +01:00
Gareth Rees
686fd83181 Don't lie about the reserved size. 
Copied from Perforce
 Change: 186376
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 2014-05-30 13:05:26 +01:00
Gareth Rees
4a59d4e9b7 Fix problems identified by rb in review <https://info.ravenbrook.com/mail/2014/05/29/13-01-02/0/>. 
Copied from Perforce
 Change: 186347
 ServerID: perforce.ravenbrook.com
 2014-05-29 14:50:36 +01:00
Gareth Rees
b70e268929 Fix problems found by coverity. see <https://info.ravenbrook.com/mail/2014/04/10/23-23-42/0/> for full analysis. 
Copied from Perforce
 Change: 185445
 ServerID: perforce.ravenbrook.com
 2014-04-11 00:26:48 +01:00
Gareth Rees
4e22988865 Remove diag facility. 
Copied from Perforce
 Change: 182553
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 2013-06-05 18:35:40 +01:00
Gareth Rees
61743c36b4 On platform lii6gc, the mps needs a bunch of symbols which are not defined if the -ansi option is given to gcc. these can be enabled by defining features like _gnu_source, but all headers share a common set of features (via <feature.h>) and so all sources in the same compilation unit must turn on the same set of features. make sure this happens by turning on the features in config.h (not mpstd.h). 
Remove <string.h> from mpsi.h (not needed).

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 Change: 182124
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 2013-05-23 19:35:47 +01:00
Richard Brooksby
714bf2aff2 Basically working keyword arguments, though vmparam is unsatisfactory. 
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 Change: 181545
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 2013-05-03 17:20:35 +01:00
Richard Brooksby
402136905d Removing half-finished code line. oops. 
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 Change: 181540
 ServerID: perforce.ravenbrook.com
 2013-05-02 17:59:58 +01:00
Richard Brooksby
098bf44a5e First draft of keyword arguments. mainly checking in in order to try working with git fusion on this branch. 
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 Change: 181538
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 2013-05-02 17:55:07 +01:00
Richard Brooksby
ddcce429f4 Abolishing eventgen.pl. event structures are now expanded by the preprocessor. 
Abolishing event formats.  Each event now has its own structure.
Event parameters are now written directly into the event buffer, rather than being copied twice.

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 Change: 179010
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 2012-08-21 22:48:11 +01:00
Richard Brooksby
1d0b04ae97 Fixing warnings revealed by xcode (clang). 
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 Change: 178898
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 2012-08-11 09:30:24 +01:00
David Lovemore
64192bbfa6 Adding casts to varargs in diagnostic output 
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 Change: 178092
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 2012-05-03 15:17:04 +01:00
Richard Kistruck
6ccac1bd84 Mps br/vmem: prepare for simple-chunk-return: 
arenavm.c: VMFree is okay for testing chunk-ret; though just sparePagesPurge() for now;
  diag.c: show what we want for using zcoll to show chunk-ret:
    VM_ix_Create/Destroy
    TraceStart, excpet only briefly for dyn-crit (why=2) and not at all for minor
  locus.c: no newline on "condemn gens" diag please
  tract.c: ChunkDecache is BROKEN; just add AVER to catch this for now
  vmix.c: VM_ix_Create_ok/VM_ix_Destroy (vmw3.c needs similar)
  zcoll.c:
    release after mps_arena_collect!!!
    make, collect, make, collect, to show chunk-ret
    10MB arena means many chunks
None of this is releaseable quality of course.

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 Change: 170071
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 2010-03-20 13:51:23 +00:00
David Jones
298232efce Mps: linux: using vmix rather than vmli 
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 Change: 162974
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 2007-07-20 19:15:15 +01:00
David Jones
882a7893e4 Mps: removing "freebsd" from cut-and-paste mistake. 
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 Change: 161981
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 2007-03-22 14:21:41 +00:00
David Jones
6f40b456c7 Mps: replaced vmxc.c with vmix.c 
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 Change: 161917
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 2007-03-12 12:16:18 +00:00
Renamed from mps/code/vmxc.c (Browse further)