1911905c6b
vm: frame size for signal handler code blocks
2011-12-14 09:56:46 -08:00
0b94018d9f
vm: initialize all_blocks set after initial fixup
2011-12-14 09:56:46 -08:00
3868895b56
vm: make all_blocks a set of cells
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gcc was doing bad things assuming the pointer given to upper_bound was aligned
2011-12-14 09:56:46 -08:00
36d1e0a78c
vm: verifier shouldn't check for leftovers
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It doesn't work after things have been freed
2011-12-14 09:56:45 -08:00
d6227c182b
vm: pack frame size into code block header bits
2011-12-14 09:56:45 -08:00
e21f316583
vm: store stack frame size in code blocks
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Change modify-code-heap primitive so it takes a sixth element in each array for the frame size.
2011-12-14 09:56:45 -08:00
bd7e6b33f8
vm: erase code blocks from all_blocks during sweep
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Fixes #437
2011-12-13 12:28:09 -08:00
083b856604
vm: reinitialize all_blocks from scratch after gc
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Faster and more likely to be correct than trying to fixup the existing set
2011-12-12 19:05:48 -08:00
4bbb2f5b72
vm: only verify all_blocks set if it's invalid
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Verifying on every sample is way too slow to be practical when debugging bootstrap.
2011-12-12 19:04:56 -08:00
4870ac8f1d
vm: add compact-gc command to factorbug
2011-12-12 19:03:42 -08:00
dea0bedb99
vm: fix msvc warning
2011-11-29 12:19:17 -08:00
26226d460e
vm: factor out embedded image detection code
2011-11-27 14:39:21 -08:00
cca526df73
vm: support self-executing image file
2011-11-27 12:37:54 -08:00
88d31b166b
vm: don't die if foreign thread gets async signal
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Fixes #425
2011-11-23 11:26:42 -08:00
065a4d4353
vm: remove useless forward declare
2011-11-23 11:11:28 -08:00
b6246f2c00
vm: quell warnings from vars only used by asserts
2011-11-23 11:11:28 -08:00
4df56f31f2
vm: clean up baroque jit safepoint logic
2011-11-23 11:11:27 -08:00
15c4b7aa57
vm: verify code heap's all_blocks set when DEBUG
2011-11-23 11:11:27 -08:00
c2c2023e34
vm: FACTOR_ASSERT only if FACTOR_DEBUG
2011-11-23 11:11:27 -08:00
0a1a252cdb
vm: replace assert with FACTOR_ASSERT
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Factor is finally a real C++ project and has a custom assert macro. Assertion failures were still getting caught as exceptions and causing failure loops. Write our own macro that calls factor::abort on failure.
2011-11-23 11:11:26 -08:00
6c0ecf631a
vm: charge samples collected in prolog to parent
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Fixes #379
2011-11-23 11:11:26 -08:00
81911b9f87
vm: initialize all_blocks map from image
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um, code blocks from the image need to go in the set too
2011-11-23 11:11:26 -08:00
2705fc67cb
vm: keep a set of all code_blocks in the code_heap
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This way looking up code blocks by return address is an O(log n) set lookup rather than an O(n) linear scan.
2011-11-23 11:11:26 -08:00
44b608bb22
vm: emit safepoints before VM compiler prologs
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For #379
2011-11-23 11:11:25 -08:00
5e99a7bbbf
vm: disable SIGINT handler while in factorbug
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Fixes #410
2011-11-15 18:50:42 -08:00
c4885ac082
vm: fashion police
2011-11-12 23:05:44 -08:00
c0a44000cc
vm: set stdin_loop cancellation state
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Make it asynchronous so it doesn't wait till the next syscall to cancel.
2011-11-12 23:05:44 -08:00
3fc82282f7
vm: close_console before exiting anywhere
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Add a factor_vm::exit function that does close_console() before ::exit-ing
2011-11-12 23:05:44 -08:00
db19efe1b3
vm: close the console when exiting
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This prevents an endless loop caused by the nvidia drivers on linux.
See http://www.nvnews.net/vbulletin/showthread.php?t=164619
2011-11-12 23:05:43 -08:00
8e7baef1a0
vm: typo in os-windows.hpp
2011-11-12 19:23:44 -08:00
e0dc236725
cpu.*.bootstrap: clear faulting flag directly
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No reason to go through a safepoint in unwind-native-frames really.
2011-11-12 13:02:57 -08:00
e24400679f
vm: more defense against multi-faulting
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* Clear faulting_p from a safepoint rather than inside general_error, because jumping into unwind-native-frames could blow up.
* Handle multiple faults from fatal_error by breakpointing. Is there anything else we can safely do at that point?
* Verify memory protection faults in the top half of the signal handlers because signal dispatch could fault. Treat memory faults during gc or fep as fatal errors.
* Add a function factor_vm::abort() that restores the default SIGABRT handler and ::abort()s. Use it from fatal_error() so we get useful context from gdb and so the user gets feedback from the system crash reporter that Factor blew up and didn't just disappear.
* In factorbug(), don't proceed with .s .r .c if it would be unsafe to do so.
* Don't pile on signals if we've already called fatal_error().
2011-11-12 13:02:57 -08:00
2c5014e74e
vm: "edges" command for factorbug
2011-11-11 10:12:36 -08:00
c31530caec
vm: strip out call-counting profiler
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This makes the separate "code" and "entry_point" fields in word and quotation redundant, so also remove them to reclaim an additional cell per word and quotation object, which should help with #318 .
2011-11-10 16:01:07 -08:00
139c9ca38c
init signals or console after stage2 init
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A signal during early bootstrap is certainly an error, and the environment isn't there yet for Factor's signal handlers to work, so it makes no sense to install Factor's signal handlers beforehand. They'll just crash.
2011-11-10 16:01:07 -08:00
9e4a51c55f
vm: don't SIGQUIT on unix or Ctrl-Break on windows
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This gives us an escape hatch for when things go way south and ^C can't be handled. Also unmask SIGQUIT and SIGTERM from the stdin_loop thread so the thread doesn't keep the process alive after those signals.
2011-11-10 16:01:07 -08:00
2e9552d98a
vm: hand SIGALRM to signal pipe if not sampling
2011-11-08 23:37:22 -08:00
c0094186a1
vm: fix build on windows
2011-11-08 23:17:51 -08:00
5f3cd4079c
vm: make signal pipe nonblocking
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On the off chance the Factor end of the signal handler mechanism isn't listening, we don't want to tie up the VM because the pipe's buffer got full.
2011-11-08 22:07:22 -08:00
820fd6417d
vm: don't send foreign samples to outer space
2011-11-08 14:00:33 -08:00
90609cc5d8
vm: don't pass this to safepoint constructor
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It's bad juju and MSVC calls us out on it.
2011-11-08 11:06:00 -08:00
fc7c175c9f
new module unix.signals: app-level signal handlers
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example:
IN: scratchpad USING: unix.ffi unix.signals ;
Loading resource:basis/unix/signals/signals.factor
IN: scratchpad [ V{ "Me not that kind of orc!" "Me busy, leave me alone!" "Work work" "Zug zug" } pop print flush ] SIGINFO add-signal-handler
IN: scratchpad load: 0.60 cmd: factor 41541 running 0.28u 0.16s
Zug zug
load: 0.71 cmd: factor 41541 running 0.28u 0.16s
Work work
load: 0.71 cmd: factor 41541 running 0.28u 0.16s
Me busy, leave me alone!
load: 0.73 cmd: factor 41541 running 0.28u 0.16s
Me not that kind of orc!
2011-11-08 10:21:49 -08:00
0c58fd5c26
vm: more commentary on lock_console() stuff
2011-11-08 08:52:52 -08:00
5f811c0573
vm: don't mask SIGTTIN from stdin_loop
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Fixes #360
2011-11-08 08:42:48 -08:00
f9aa0419c4
vm: interrupt stdin_loop when entering fep
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The stdin_loop thread will keep trying to consume input unless we stop it by sending it a signal. Use SIGUSR2 to stop the read syscall and a mutex to hold up the loop while the fep is active.
2011-11-08 08:42:48 -08:00
04c6b2c393
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
0e3c315099
vm: move bignum.cpp includes to master.hpp
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That way they get PCHed
2011-11-08 08:42:47 -08:00
18e01f7770
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
b46fd5e655
GNUmakefile: use PCH so compiler goes faster
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Also add more accurate dependencies on headers so "make" works right when headers change
2011-11-08 08:42:46 -08:00
72d335f2b5
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
Joe Groff
Philipp Brüschweiler