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398f861768
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Author SHA1 Message Date
Eric Scharff
398f861768 Support 64-bit Mac builds 2009-12-01 14:24:33 -07:00
Joel Dice
4ae4741c41 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-12-01 11:15:04 -07:00
Joel Dice
f216fe37ff fix regression which led to register exhaustion 2009-12-01 11:14:57 -07:00
jent
1f98cc633d Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-12-01 09:55:19 -07:00
jent
f39469e71c Changes for better memory managment 2009-12-01 09:54:36 -07:00
Joel Dice
98275e175e powerpc bugfixes 2009-12-01 09:21:33 -07:00
Joel Dice
9ba71cf508 fix Darwin build 2009-12-01 08:23:11 -07:00
Joel Dice
0bdf1d8e82 use thunks for floating point ops if SSE is not available 2009-11-30 22:02:26 -07:00
Joel Dice
175cb8e89b more floating point bugfixes 2009-12-01 02:06:01 +00:00
Joel Dice
7fa10909f4 more bugfixes for handling 64-bit floats on 32-bit systems 2009-11-30 22:08:59 +00:00
Joel Dice
851187f0ce refine memory barrier implementation and usage 2009-11-30 15:38:16 +00:00
Joel Dice
04454960ec various bugfixes for handling 64-bit floating point values on 32-bit systems 2009-11-30 15:10:34 +00:00
Joel Dice
d9de4c607c allow source operand of any type for move operations 2009-11-30 15:09:43 +00:00
Joel Dice
ec701b9994 whitespace tweaks 2009-11-30 15:08:45 +00:00
Joel Dice
79d281f7fa encourage loads from memory directly into SSE registers where appropriate 2009-11-30 02:17:08 +00:00
Joel Dice
1c61c1f421 fix x86 memoryBarrier implementation 2009-11-29 16:53:46 -07:00
Joel Dice
0b09c6aa30 avoid busy wait when entering "exclusive" state 2009-11-29 16:53:05 -07:00
Joel Dice
6d9e1270ca fix race conditions in atomic operations 2009-11-29 09:08:07 -07:00
Joel Dice
1558b85acf second attempt to fix "idle to active" fast path 
If another thread succeeds in entering the "exclusive" state while we
use the fast path to transition the current thread to "active", we
must switch back to "idle" temporarily to allow the exclusive thread a
chance to continue, and then retry the transition to "active" via the
slow path.
 2009-11-28 15:35:15 -07:00
Joel Dice
3418a8bcbe fix race condition introduced in previous commit 2009-11-28 15:24:02 -07:00
Joel Dice
75934c8342 provide fast paths for common thread state transitions 
These paths reduce contention among threads by using atomic operations
and memory barriers instead of mutexes where possible.  This is
especially important for JNI calls, since each such call involves two
state transitions: from "active" to "idle" and back.
 2009-11-28 15:01:54 -07:00
Joel Dice
f5490b800a Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-11-28 11:18:13 -07:00
Joel Dice
c615db31fb refine move cost calculation to avoid indirect moves (e.g. memory to memory) 2009-11-28 18:17:17 +00:00
Joel Dice
5ead8fab17 refactor code responsible for moving data in the compiler 
This is partially to address incorrect code generation for 64-bit
floating-point values on x86_32 and partially to reduce unnecessary
moves.
 2009-11-27 21:15:12 -07:00
Joel Dice
bd72745ff9 fix off-by-one error in intrinsic() 2009-11-27 21:01:27 -07:00
Joel Dice
f6a52e260b specify CONTEXT::ContextFlags before calling GetThreadContext 
Previously, we assumed that the "context" parameter to
GetThreadContext was only an output parameter, but it actually uses at
the value of CONTEXT::ContextFlags on entry to decide what parts of
the structure to fill in.  We were getting lucking most of the time,
because whatever garbage was on the stack at that location had the
necessary bits set.  When we weren't so lucky, we got all zeros for
the register values which sometimes lead to a crash depending on the
state of the thread being examined.
 2009-11-24 19:16:22 -07:00
Joel Dice
9f14d63592 initialize MyProcessor::getStackTrace::Visitor::trace in case visit is never called 2009-11-24 19:15:27 -07:00
Stan
728a6ba706 use MapViewOfFile instead of mmap on Windows 2009-11-24 08:24:37 -07:00
Joel Dice
a0d763d871 use cmpxchgq for 64-bit operands in atomicCompareAndSwap 2009-11-20 15:17:35 -07:00
Joel Dice
2276eece0e support atomicCompareAndSwap on powerpc for GCC versions prior to 4.1 2009-11-20 15:14:27 -07:00
Joel Dice
f75868b394 don't specify -march=i486 on Darwin because a later generation is assumed by default 2009-11-20 11:40:55 -07:00
Joel Dice
b83314e884 fix powerpc build 2009-11-20 10:42:02 -07:00
Joel Dice
15eada93ed implement atomicCompareAndSwap on x86_32 for GCC versions prior to 4.1 and for MSVC 2009-11-20 10:40:01 -07:00
Joel Dice
e91157a390 avoid acquiring a mutex recursively in markDirty 2009-11-19 19:41:49 -07:00
Joel Dice
5f5cc57d12 only use atomic operations if the compiler supports them 2009-11-19 19:32:54 -07:00
Joel Dice
07f40a07e1 specify -march=i486 for x86_32 to support __sync_bool_compare_and_swap 2009-11-19 18:51:43 -07:00
Joel Dice
fdde34694c use atomic operations in MyHeap::mark to avoid need for mutex 2009-11-19 18:13:00 -07:00
Joel Dice
6475beda83 don't null out array in HashMap when size drops to zero 
As in ArrayList, we want to avoid thrashing in cases where the map is frequently emptied and refilled.
 2009-11-19 12:55:53 -07:00
Joel Dice
adcac443e4 don't null out array in ArrayList when size goes to zero 
This avoids thrashing in the case of a list which is frequently
emptied and refilled with a small number of elements.
 2009-11-19 11:43:11 -07:00
Joel Dice
c711ac5701 return null from NewString[UTF] if the char* parameter is null 2009-11-18 11:01:47 -07:00
Joel Dice
3862128a3a tolerate EINTR in ServerSocketChannel.accept implementation 
On POSIX systems, Avian sends a special signal to a thread to
implement Thread.getStackTrace() when called from a different thread.
If the target thread is blocked on a call to accept when this happens,
it will return -1, with errno set to EINTR.  Instead of treating this
as an error, we now just loop and call accept again.
 2009-11-16 17:23:09 -07:00
Joel Dice
5b8a7ca566 temporarily disable use of SSE on 32-bit systems until a bug involving memory<->SSE-register moves is fixed 2009-11-04 15:16:06 +00:00
Joel Dice
fb5796b740 don't use SSE for long-to-double conversion on 32-bit systems 2009-11-04 00:02:38 +00:00
Joel Dice
ef9c1ee32c specify -arch explicitly to compiler and liner on OS X 
On 10.6 the compiler generates x86_64 code by default, even though uname -m reports "i386", so we have to be explicit
 2009-11-03 16:07:13 -07:00
Joel Dice
d56713dc13 refer to ProGuard 4.4 instead of 4.3 in readme.txt 2009-11-03 15:10:30 -07:00
Joel Dice
82d2be8e71 implement JavaVM::AttachCurrentThreadAsDaemon 2009-11-03 14:52:14 -07:00
Joel Dice
4566e7a7dd avoid infinite loop in deadWord 2009-11-03 14:14:27 -07:00
Joel Dice
ed4206b06d fix order-of-operations bug in compile loop 
The code was capturing branch snapshots too early - before the call to
populateSources which might perform further moves.
 2009-11-02 21:11:39 -07:00
Joel Dice
ef00ff80ef avoid EAGAIN or EWOULDBLOCK errors due to SocketSelector.wakup being called many times between calls to select 2009-10-30 08:55:55 -06:00
Joel Dice
e825da60aa update continuation constants to reflect new field offsets 2009-10-30 00:45:46 +00:00