0c132cf861
vm: write signals to pipe immediately
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The whole point is to wake up the mx without waiting for the next safepoint derp
2011-11-08 08:42:47 -08:00
06bb122b6e
vm: enqueue signals for FEP signals too
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Although SIGINT still can't interrupt the current Factor thread in a sane way, this will at least wake up the run loop when waiting for input and fix #348 when implemented at the application level.
2011-11-08 08:42:47 -08:00
ceeb9f36d8
vm: write async signals to pipe for multiplexer
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also factor out safepoint logic into its own file
2011-11-08 08:42:46 -08:00
eb55863292
vm: restore sigaltstack setup on unix
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#ifdef __OpenBSD__ is different from #ifndef __OpenBSD
2011-11-03 11:57:43 -07:00
d7bc7ae4bf
vm: parameterize sampling rate
2011-11-02 13:23:15 -07:00
bec71e9ae2
vm: sampling profiler timer for windows
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Spawn a thread and have it spin on the performance counter, triggering safepoints on the main thread every sample time
2011-11-02 13:23:11 -07:00
1c68bbf8a6
vm: count samples from foreign threads
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On OS X it appears the mach exception thread and libdispatch queue threads occasionally get the SIGALRM from the itimer. Count those as foreign_thread_samples instead of letting the signal kill the process.
2011-11-02 13:23:10 -07:00
2ddfdda7b5
vm: groundwork for sampling profiler
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Set up the state necessary to collect samples. We still need to add GC support for walking the sample set, and the compiler needs to register GC roots before safepoints as well. We also need primitives to expose the data to Factor for reporting.
2011-11-02 13:23:06 -07:00
09088ec3ce
cleanups from code review
2011-10-27 21:18:23 -07:00
b1094e0e5f
vm: remove half-assed signal queueing scaffolding
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Should implement it right later. See #297 .
2011-10-27 21:18:22 -07:00
ad9b90f23b
vm: update windows for resumable signals
2011-10-27 21:18:21 -07:00
e431cef96b
vm: move dispatch_signal_handler to cpu-x86.cpp
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The new signal handler dispatch is logic is CISC-centric; defer fixing it until we find someone who cares
2011-10-27 21:18:20 -07:00
011ce33068
vm: Revert extra canary page before callstack
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This reverts commit 7d5c8d6990385b94569116a23163d7e75ae21f49. We pretty much can't avoid unwinding frames without some more drastic redesign.
2011-10-27 21:14:50 -07:00
ed72d57c1a
vm: allocate an extra canary page before callstack
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This will let us safely unguard the callstack overflow guard page as a grace page so the callstack overflow handler can do its business without discarding frames.
2011-10-27 21:14:49 -07:00
f759575ddd
vm: factor out dispatch_signal_handler logic
2011-10-27 21:14:49 -07:00
91d8bcd4f8
vm: fep on SIGINT or SIGQUIT instead of exception
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It's not robust currently to raise an exception because a lot of our code that isn't already written with exceptions in mind breaks. Also, a signal is likely to be received by an FFI callback installed on the IO multiplexer, which will cause Factor to die since the callback cannot handle the exception. We need a more robust solution to dealing with SIGINT.
Also lay some groundwork for counting profile samples and reporting non-interrupting asynchronous signals.
2011-10-27 21:14:49 -07:00
01b782e6c4
vm: clean up signal handler dispatch
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Remove the weird and broken functions fix_callstack_top and scrub_return_address. Instead, simply decrement the SP and store the PC from the front end of the signal handler so that the back end can return back into the original context normally. Currently aborts for leaf procedure frames pending a more robust solution.
2011-10-27 21:14:48 -07:00
675cd246ad
vm: fatal_error if VM-less thread gets a signal
2011-10-27 21:14:48 -07:00
6f831c4f95
vm: block all signals from unix stdin_loop thread
2011-10-27 21:14:47 -07:00
e9309a425a
vm: handle async signals at safepoints on unix
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Factor now supports the new 4.0BSD feature of "signals".
2011-10-27 21:14:46 -07:00
e6f65d81e4
vm: code_heap::(un)guard_safepoint methods
2011-10-27 21:14:44 -07:00
1ed2bc6231
32 and 64 bit Linux PPC support
2011-05-23 23:36:14 -04:00
a6386f6e7d
vm/os-unix.cpp: remove dead code
2010-09-20 21:36:19 -07:00
e5921ab55b
vm/os-unix.cpp: set pipe file descriptors to close on exec
2010-09-15 22:20:24 -07:00
087b451dc1
Change how SIGPIPE is ignored, and add a unit test to io.launcher.unix to ensure that this ignoredness is not inherited by child processes
2010-09-02 22:11:45 -07:00
55ac874eb2
vm: Remove signal_callstack_top nonsense
2010-09-02 22:57:17 -05:00
6617eca683
Fix three problems discovered by running math.floats.env tests in a loop:
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- Crash if allocating error triggers a GC from a signal/SEH handler
- Crash if GC runs with floating point traps enabled on Windows
- Floating point traps didn't prettyprint properly
2010-09-02 22:57:14 -05:00
97c3450427
Remove system_micros from vm, implement gmt hook on windows
2010-06-16 23:39:16 -05:00
295de47038
vm: don't try loading Factor VM DLL anymore
2010-04-02 00:03:26 -04:00
7bb82e0c1b
statically link factor executable to VM so dylib is only needed for embedding
2010-04-01 14:25:02 -07:00
a1caf9edb3
vm: split up TLS code and add a dummy implementation for a dummy OS known as NetBSD
2010-03-29 02:23:21 -04:00
d915b1a401
vm: don't use sigaltstack() on OpenBSD because OpenBSD sucks
2010-03-28 18:26:39 -05:00
43844830c8
vm: fix compilation on FreeBSD
2010-03-28 12:52:16 -04:00
0fa2277bc3
vm: use sigaltstack to handle callstack overflow properly
2010-03-28 11:37:28 -04:00
54aaed0fc3
vm: fix factor_vm::dispatch_signal()
2010-03-28 08:29:10 -04:00
4fd804a3a8
vm: fix compilation on various Unices
2010-03-27 09:44:20 -04:00
370718e9a4
vm: signal handling cleanup
2010-03-27 07:33:28 -04:00
ba61398145
vm: clean up TLS usage
2010-03-27 03:44:40 -04:00
f6002e6c78
Change the MOVE_FILE macro to a function named move_file
2010-02-03 15:12:13 -06:00
edb1346239
vm: Tweak Factor VM to compile with Microsoft Visual Studio on Windows, in addition to Mingw. Add an Nmakefile which can be used for this purpose. Rename Makefile to GNUmakefile.
2010-01-17 03:43:22 +13:00
a942e2c34d
vm: eliminating register variables work in progress. Works on x86-32 with non-optimizing compiler
2009-12-19 10:59:56 +13:00
a896eef7b4
remove sleep_micros, add sleeo_nanos to vm
2009-11-19 04:49:29 -06:00
addb1c90bb
rename millis to system-millis, micros to system-micros, add nano-count
2009-11-18 15:58:48 -06:00
1861dd2705
initial commit to nanos branch to replace micros
2009-11-18 04:20:05 -06:00
28de799296
vm: fix compilation
2009-10-22 06:38:02 -04:00
5a63edf278
vm: clean up signal handling and add EXC_BAD_INSTRUCTION Mach exception handler for OS X, since signal handlers cannot change the stack pointer
2009-10-22 05:22:59 -05:00
f0a1a3ce5b
vm: rename F to false_object, and rename T to true_object
2009-10-18 20:26:21 -05:00
c80b255885
vm: allocate stacks and data heap segments without execute permissions
2009-10-16 05:16:12 -05:00
786f6826b6
Merge branch 'reentrantvm' of git://github.com/phildawes/factor
2009-10-16 03:52:35 -05:00
0b2db4018a
Removed VM_PTR macros. All builds reentrant by default
2009-10-14 19:14:57 +01:00
Joe Groff
Erik Charlebois
Slava Pestov
Slava Pestov
Slava Pestov
Doug Coleman
Slava Pestov
Phil Dawes