Dear SBCL developers and users:
I think the time has come to describe some further progress in my
(threaded-SBCL-for-Windows) code repository.
[ http://www.siftsoft.com/inprogress/forknews.html ]
[ http://github.com/akovalenko/sbcl-win32-threads ].
Major part of my effort during the last week or two had gone into 64-bit
MS Windows port of SBCL for AMD64 architecture. I'm glad to announce
that Windows AMD64 support is now fully functional. X86-64 binaries
(MSI installer and an additional standalone executable) are available at
[ http://www.siftsoft.com/inprogress/forknews.html ].
64-bit and 32-bit version are now built from the same source tree. Since
this day, I'm going to provide updates for both platforms
The binaries mentioned above have 18.104.22.168.263.kovalenko.wth as
(lisp-implementation-version). The old weird version numbering is now
gone; first four items in new version number correspond to last merged
upstream SBCL (sub-)version.
SBCL for Windows/AMD64 supports threading, interrupts, and alien
callbacks, invoked from foreign threads and from Lisp threads
alike. Like SBCL/Win32/X86, this port also works on Wine (MS Windows API
`Not an Emulator' for Linux), when Wine is compiled to support 64-bit
binaries (`combined' installation of 32-bit and 64-bin Wine to a single
prefix also works).
There are some (relatively minor) issues with that platform:
* interrupted thread backtraces are inconveniently truncated;
* unwinding with SEH frames is not supported on this platform yet (it
becomes a problem when a foreign C call is invoked from a Lisp
callback, and then it exits non-locally into a foreign C frame below
[Lisp unwind cleanups between C frames won't run], or when a Lisp
routine invoked from a C[++] one unwinds across the foreign frame [C
SEH handler for stack unwinding won't run].
* About 10-20 compiler warnings on type mismatches are still there;
some of them point at really harmful code paths -- but those cases
affect LDB and monitor, not influencing SBCL behaviour during normal
Non-Windows SBCL may now be built from the same tree (well, at least I'm
sure that it builds for linux-X86[-64]; didn't test another CPU
families, but chances that those configurations are affected should be
significantly lower than for X86* builds).
As of my plans related to inter-thread signalling simplification (GC and
interrupts) on platforms with safepoints: related code was rewritten
(almost from scratch) and is more intelligible now; in its current
state, this code is still unobvious to a casual readed -- but, at least,
with enough time in hands, i _can_ explain how it works (and why).
Regards, Anton Kovalenko
+7(916)345-34-02 | Elektrostal' MO, Russia
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