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
Brian Anderson
9656ceac60
rt: Put 16 guard bytes at the end of the stack
2011-12-06 22:35:42 -08:00
Brian Anderson
5d1a1dc420
rt: Rename stk_seg.limit to stk_seg.end
...
rust_task is using the word limit it two ways, so one has to change.
2011-12-06 21:45:53 -08:00
Brian Anderson
9a738fd61d
rt: Various tweaks to make __morestack unwinding work on linux
...
When unwinding through __morestack the stack limit in the TLS is invalidated
and must be reset. Instead of actually landing at __morestack we're
just going to make all our Rust landing pads call upcall_reset_stack_limit,
which will find the stack segment that corresponds to the current stack
pointer and put the limit in the TLS.
Also massively expand the stack segment red zone to make more room for the
dynamic linker. Will fix in the future.
2011-12-06 16:32:41 -08:00
Austin Seipp
b513a5a500
Make valgrind usage more consistent and less error prone.
...
I was still having issues with the build system somehow getting confused
as to which set of valgrind headers to use when compiling rt.
This commit moves all the valgrind headers into their own directory
under rt and makes the usage more consistent. The compiler is now passed
the -DNVALGRIND flag when valgrind is not installed, as opposed to
passing -DHAVE_VALGRIND.
We also pass -I src/rt to the compiler when building rt so you can more
easily import what you want. I also cleaned up some erroneous #includes
along the way.
It should be safe to always just import the local valgrind headers and use
them without question. NVALGRIND turns the operations to no-ops when it
is active, and the build and tests run cleanly with or without.
2011-12-06 01:15:29 -06:00
Brian Anderson
58844aee42
rt: Make stack unwinding work more correctly with stack growth
2011-12-05 17:42:58 -08:00
Brian Anderson
52d7dc5e0a
rt: Update 32-bit __morestack for recent LLVM changes
2011-12-04 20:40:34 -08:00
Brian Anderson
1974cf9a81
rt: Move RED_ZONE_SIZE to rust_task.cpp
2011-12-01 15:50:00 -08:00
Brian Anderson
249f017bf2
rt: Add FIXME's about future changes to LLVM's __morestack impl
2011-12-01 15:33:15 -08:00
Brian Anderson
6da1a3fcd6
rt: Refactor record_sp into task::record_stack_limit
2011-12-01 15:26:42 -08:00
Brian Anderson
f2de42c39a
rt: Reorganize stack growth code
2011-11-30 20:31:33 -08:00
Brian Anderson
e6ef4d929c
rt: Remove the stack pointer field of stk_seg
2011-11-30 20:31:33 -08:00
Brian Anderson
06f4cb43f6
rt: Delete the entire stack chain on task destruction
...
Unwinding through __morestack on 64-bit Linux seems to be no big deal, and
all we have to do is free the stacks to make unwinding work with split stacks.
2011-11-29 22:22:49 -08:00
Brian Anderson
cd75c9ce11
rt: Implement part of the 64-bit __morestack
2011-11-28 16:29:52 -08:00
Brian Anderson
6bdf347418
rt: Make __morestack (without unwinding) work on 32-bit linux
2011-11-22 18:02:10 -08:00
Brian Anderson
9aa67052e1
rt: Remove some stack-wasting macros from rust_task::yield
2011-11-18 15:59:10 -08:00
Brian Anderson
1e58049da2
rt: Remove fail calls from rust_task::yield
2011-11-18 15:36:48 -08:00
Brian Anderson
792068d871
rt: Remove unblock call from rust_task::yield
2011-11-18 14:45:48 -08:00
Brian Anderson
0f339b481a
rt: Remove a lock from task_start_wrapper that does nothing
2011-11-18 13:38:20 -08:00
Brian Anderson
3cfcdb4bb2
rt: Replace two uses of yield with ctx->swap
...
These uses aren't really doing a full yield. They are just giving up control
to the scheduler and will never return.
2011-11-18 13:38:18 -08:00
Brian Anderson
57b43b53f9
rt: Add comments to rust_task::yield
2011-11-18 13:28:12 -08:00
Brian Anderson
d1ef29ab37
rt: rust_task::conclude_failure doesn't need to call unblock
2011-11-18 13:23:27 -08:00
Brian Anderson
93931311ff
rt: Add FIXMEs about races in rust_task
2011-11-18 10:32:27 -08:00
Brian Anderson
0dfa1410d3
rt: Remove task::on_wakeup. Unused
2011-11-18 10:32:27 -08:00
Brian Anderson
63d40b8ab6
rt: Remove some unnecessary setting of rust_task::killed
...
The value of this variable doesn't matter after the task fails.
2011-11-18 10:32:27 -08:00
Brian Anderson
d52888f0ba
rt: Remove rust_task::yield. Unused
2011-11-18 10:32:27 -08:00
Brian Anderson
5e9f9e8c48
rt: Add some comments about methods that run on the Rust stack
2011-11-18 10:32:27 -08:00
Niko Matsakis
60e93cd1ec
Re-enable cycle coll. on x86_64, seems to work better now.
2011-11-17 14:40:03 -08:00
Patrick Walton
e6c3c4e48c
rt: More work on morestack
2011-11-17 10:52:59 -08:00
Brian Anderson
02cebbb9f1
Revert "rt: More work on morestack"
...
This reverts commit 68aff2ad6d
2011-11-16 18:49:19 -08:00
Patrick Walton
68aff2ad6d
rt: More work on morestack
2011-11-16 18:00:57 -08:00
Brian Anderson
8199558443
rt: Remove an unnecessary check from rust_task::yield
2011-11-16 17:55:04 -08:00
Brian Anderson
bae817efe6
rt: Remove rust_task::notify_tasks_wating_to_join
2011-11-16 17:22:14 -08:00
Niko Matsakis
69911c2bc1
temp. disable cycle coll. on x86_64
2011-11-16 15:16:41 -08:00
Patrick Walton
b3cf0c4d1b
Revert "rt: More work on morestack"
...
This reverts commit ced0d4f15e
2011-11-14 16:20:53 -08:00
Patrick Walton
ced0d4f15e
rt: More work on morestack
2011-11-14 16:17:08 -08:00
Brian Anderson
58e923de6e
rt: Perform task notification before killing the parent task
2011-11-13 16:36:47 -08:00
Brian Anderson
3d9023fa4d
rt: Take the task lock when dropping port refcounts
...
Sucks, but otherwise there are races when one task drops the refcount to zero
followed by another bumping it again
2011-11-11 16:11:31 -08:00
Brian Anderson
07771ec25b
Fix run-fail/spawnfail
...
Catch the case where a parent is killed immediately before it terminates
normally.
2011-11-11 14:20:00 -08:00
