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257 Commits

Author SHA1 Message Date
Brian Anderson
e0d5b92b84 rt: Begin moving stack-building functions to rust_stack.cpp 2012-02-09 19:00:15 -08:00
Brian Anderson
028af5cb6c rt: Change the lifecycle of tasks and schedulers for various reasons 
This is in preparation for giving schedulers their own life cycle separate
from the kernel.

Tasks must be deleted before their scheduler thread, so we can't let the
scheduler exit before all its tasks have been cleaned up. In this scheme,
the scheduler will unregister tasks with the kernel when they are reaped,
then drop their ref on the task (there may still be others). When the task
ref count hits zero, the task will request to be unregistered from the
scheduler, which is responsible for deleting the task.

Instead of having the kernel tell the scheduler to exit, let the scheduler
decide when to exit. For now it will exit when all of its tasks are
unregistered.
 2012-02-08 15:42:51 -08:00
Brian Anderson
c7777f4fd9 rt: Add sanity checks when we hit the max task/port id 2012-02-03 23:48:12 -08:00
Brian Anderson
12fa90888e rt: Clean up the way the kernel tracks tasks 2012-02-03 23:48:12 -08:00
Brian Anderson
3d0e7a7af3 rt: Add a field to rust_task to hold its scheduler 2012-02-03 23:48:12 -08:00
Brian Anderson
f94339cc1c rt: Rename rust_scheduler to rust_task_thread 2012-02-03 23:48:12 -08:00
Marijn Haverbeke
c1b075d042 Remove experimental GC code 
It's been sitting unused long enough to have bitrotted completely.
 2012-02-03 11:34:12 +01:00
Brian Anderson
5c3c8d454d rt: Do all signalling while holding a lock 
This will matter once the scheduler is changed to not wake up on a timer
 2012-02-02 18:10:24 -08:00
Brian Anderson
3978fbff8b rt: Remove rust_task::can_schedule. Does nothing 2012-02-02 18:10:24 -08:00
Brian Anderson
ed3a5ad5ad rt: Remove running_on flag. Does nothing 2012-02-02 18:10:24 -08:00
Brian Anderson
57cad61353 rt: Remove task pinning. Does nothing 2012-02-02 18:10:24 -08:00
Brian Anderson
18de0f2aeb rt: Rename task_sleep intrinsic to task_yield. Remove usec param 2012-02-02 18:10:24 -08:00
Brian Anderson
8693fcc2d7 rt: Remove yield timers 2012-02-02 18:10:24 -08:00
Niko Matsakis
196d69beb2 make boxes self-describing (fixes #1493)" (take 2) 
this will be used to generate a new snapshot.
 2012-02-01 18:52:08 -08:00
Niko Matsakis
3116643806 Revert "make boxes self-describing (fixes #1493)" until a new 
snapshot is prepared.
 2012-02-01 18:50:19 -08:00
Niko Matsakis
c36207bfb8 make boxes self-describing (fixes #1493) 2012-02-01 18:18:07 -08:00
Brian Anderson
4eb92d4177 rt: Don't access fields on null supervisor task 2012-02-01 16:46:11 -08:00
Brian Anderson
fa13fd9d64 rt: Remove set_min_stack 2012-01-29 21:27:37 -08:00
Brian Anderson
6548cdd59b rt: Make the initial segment of the main task's stack 1MB 
This is a trick to fool microbenchmarks. Closes #1681
 2012-01-29 21:20:39 -08:00
Brian Anderson
94c389a25b rt: Add RUST_MAX_STACK env var with 8MB default 
Closes #1489
 2012-01-11 13:57:11 -08:00
Niko Matsakis
110c3ccdca add rust_task_is_unwinding predicate and do not kill if already unwinding 2012-01-09 19:53:32 -08:00
Brian Anderson
7e8974305c rt: Set Linux red zone to 20K again 
With runtime logging on it smashes the stack
 2012-01-09 11:44:36 -08:00
Niko Matsakis
8506241f3a fix how we walk functions to match new closure fmt 2012-01-06 22:40:31 -08:00
Niko Matsakis
25e81e34ea rewrite task tests 2012-01-06 22:40:31 -08:00
Niko Matsakis
98f5109cde simplify task impl 2012-01-06 22:40:31 -08:00
Brian Anderson
4632358cbc Revert "rt: Reduce mac red zone to 6K" 
This reverts commit d499e739a1eb67e887f5756f9dfef17199a6d041.
 2012-01-06 18:16:19 -08:00
Brian Anderson
d499e739a1 rt: Reduce mac red zone to 6K 2012-01-06 16:42:26 -08:00
Brian Anderson
2f4c9315af rt: Fail the scheduler immediately on task failure in win32 2012-01-06 16:18:56 -08:00
User Jyyou
a59c4b1b47 freebsd support 2012-01-01 20:18:55 -08:00
Brian Anderson
dedfef4c4c Revert "wip" 
This reverts commit aeadc6269ef76f4425a49d892ceac7ea311ef5c1.
 2011-12-20 20:57:04 -08:00
Brian Anderson
aeadc6269e wip 2011-12-20 20:15:09 -08:00
Brian Anderson
128621be97 rt: Remove rust_task::grow. Obsolete 2011-12-20 20:02:57 -08:00
Brian Anderson
cab4da70c8 rt: Don't check the stack canary on most upcalls 2011-12-20 16:50:54 -08:00
Brian Anderson
2a490d1cf8 Revert "rt: Reduce the mac red zone to 2K" 
This reverts commit ba8f369f890f6c7241c616df552f0e2ebf1509c8.
 2011-12-20 15:17:30 -08:00
Brian Anderson
ba8f369f89 rt: Reduce the mac red zone to 2K 2011-12-20 14:24:13 -08:00
Brian Anderson
2e230b1cf9 rt: Reduce the linux red zone to 2K 2011-12-20 14:02:59 -08:00
Brian Anderson
93fef2e113 rt: Parenthesize the red zone macros 2011-12-20 11:57:22 -08:00
Brian Anderson
784713ec68 rt: Add a canary value to the end of every stack 
Check it on upcall entry and exit, and on stack deletion
 2011-12-20 11:48:47 -08:00
Brian Anderson
56ec9cb278 rt: Run yet more task_start_wrapper cleanup on the C stack 2011-12-20 10:29:40 -08:00
Brian Anderson
25f7c844df rt: Don't reuse stack segments when they are not big enough 2011-12-19 22:47:28 -08:00
Brian Anderson
bd6b80c972 rt: Get rid of the rethrow in upcall_fail 
Throwing in upcall_fail ends up running lots of code in the red zone. To avoid
it we have the personality function figure out which stack it's on and switch
as needed.
 2011-12-18 17:17:31 -08:00
Brian Anderson
f57fd8de1f rt: Run the cycle collector on the C stack 2011-12-18 15:23:44 -08:00
Brian Anderson
74d5faa86e rt: Give each platform its own red zone definition 2011-12-18 15:23:41 -08:00
Brian Anderson
762d7e43a6 rt: Trim the red zone to 20k on all platforms 2011-12-18 15:22:56 -08:00
Brian Anderson
3fa930f598 rt: Remove a bogus FIXME from ~rust_task 2011-12-18 02:09:41 -08:00
Brian Anderson
fe683dfb80 rt: Get rid of the valgrind guard bytes at the end of the stack 
Preventing us from writing beyond our allocations is _what valgrind does_,
so telling valgrind not to let us write to the end of the stack isn't
buying anything.
 2011-12-17 16:46:50 -08:00
Brian Anderson
4ac345939c rt: Cache an extra stack segment to avoid bad behavior at stack boundaries 2011-12-17 13:45:38 -08:00
Brian Anderson
0ed5117a9d rt: Set the default stack size to 768 bytes. Double on each alloc 2011-12-17 13:45:38 -08:00
Brian Anderson
23df4de86d rt: Fix alignment of new stack segments 2011-12-16 18:18:43 -08:00
Brian Anderson
81f932e7d7 rt: Fix alignment of stacks generated by __morestack 2011-12-07 14:06:46 -08:00