Joel Dice
a5742f5985
update copyright years
2010-12-05 20:21:09 -07:00
Joel Dice
19dbc61e9f
for heapdump=true builds, optionally generate dump on OOM
...
If the VM runs out of heap space and the "avian.heap.dump" system
property was specified at startup, the VM will write a heap dump to
the filename indicated by that property. This dump may be analyzed
using e.g. DumpStats.java.
2010-11-18 10:55:00 -07:00
Joel Dice
6118792ffd
update copyright years
2009-12-02 19:08:29 -07:00
Joel Dice
6d9e1270ca
fix race conditions in atomic operations
2009-11-29 09:08:07 -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
fdde34694c
use atomic operations in MyHeap::mark to avoid need for mutex
2009-11-19 18:13:00 -07:00
Joel Dice
7b0378c180
support darwin/x86_64
2009-10-14 10:01:37 -06:00
Joel Dice
6aff383ee1
ensure Heap::needsMark and Heap::mark work correctly during GC
2009-09-01 18:31:18 -06:00
Joel Dice
1a0eef7e2d
add support for building with MSVC on Windows
2009-08-26 18:26:44 -06:00
Joel Dice
30c7107aa3
enable DebugAllocation in heap.cpp when NDEBUG is not defined
2009-07-10 08:42:56 -06:00
Joel Dice
31976f585a
add DebugAllocation option to heap.cpp to help detect allocation and deallocation errors
2009-06-11 17:23:02 -06:00
Joel Dice
58a90f2b84
fix regressions for non-bootimage case
2008-12-03 19:09:57 -07:00
Joel Dice
457c3d135e
return Tenured from MyHeap::status if the object resides in the immortal heap
2008-12-02 19:41:22 -07:00
Joel Dice
d4363d250a
mark and fix up absolute addresses in boot image code
2008-12-02 09:45:20 -07:00
Joel Dice
25ade1484a
lots of bugfixes and refactoring
2008-12-01 19:38:00 -07:00
Joel Dice
0ef2ee1d02
refactor Segment::Map to support map data which is not allocated as part of the segment data
2008-11-29 13:37:03 -07:00
Joel Dice
702525fd32
support immortal heap area in heap.cpp
2008-11-28 19:31:06 -07:00
Joel Dice
80815d35f7
fix fixed object tracking in heap.cpp
2008-11-28 18:22:09 -07:00
Joel Dice
4d1af63ed2
initial work on booting from boot image
2008-11-28 15:02:45 -07:00
Joel Dice
18d25468fe
optimize common case of setting a single object field so we don't acquire the heap lock unnecessarily
2008-04-23 18:08:24 -06:00
Joel Dice
0d3e6b7793
simplify memory allocation interfaces
2008-04-13 12:15:04 -06:00
Joel Dice
a388ca19ee
fix build for GCC 4.3
...
Note that this requires removing the -Wconversion flag for now. I'll
see about restoring it when I'm ready to tackle all those warnings.
2008-03-10 13:49:10 -06:00
Joel Dice
2edaa82801
prepend copyright notice and license to all source files; add license.txt and readme.txt
2008-02-19 11:06:52 -07:00
Joel Dice
94404b7f89
remove unused major collection interval code
2008-02-02 13:34:29 -07:00
Joel Dice
55e3e8871d
trigger major GCs more aggressively under low memory conditions
2008-01-31 17:50:38 -07:00
Joel Dice
2f83468b80
remove context argument from Allocator::tryAllocate and Allocator::allocate, since we aren't using it after all
2008-01-14 16:37:24 -07:00
Joel Dice
a89c22b493
force major collection under low memory condition
2008-01-14 09:39:57 -07:00
Joel Dice
0298865efa
refactor memory allocation to allow better detection and handling of low-memory conditions
2008-01-13 15:05:08 -07:00
Joel Dice
8e5ce11047
refactor memory management code
...
We now support immortal objects, which the GC will scan for references
but not consider for collection. On x86_64, we allocate JIT code memory
via mmap, which lets us map memory into the bottom 2GB of the address
space, ensuring that 32-bit relative jumps and calls work.
2008-01-09 18:20:36 -07:00
Joel Dice
633990b5fe
force a major GC whenever the tenured fixed object footprint doubles
2008-01-09 08:21:58 -07:00
Joel Dice
e3be0d197e
maintain memory ceiling for tenured fixed objects and use it to trigger a major GC when appropriate
2008-01-08 17:02:27 -07:00
Joel Dice
a8e9cc521c
move some generally useful bitset functions from heap.cpp to common.h
2008-01-06 12:21:38 -07:00
Joel Dice
6cecdc8295
relax rules for doing major collection; fix overconstrained assertion
2008-01-03 10:09:43 -07:00
Joel Dice
df20ce92f7
set Verbose=false
2008-01-01 18:48:04 -07:00
Joel Dice
eff3ba1418
fix thinko in visitDirtyFixies()
2008-01-01 18:45:23 -07:00
Joel Dice
e797a8f1ca
fix GC bugs involving old fixed objects pointing to new objects
2008-01-01 18:08:27 -07:00
Joel Dice
e4fbadd051
JIT-related GC safety fixes
2007-12-16 15:41:07 -07:00
Joel Dice
b3918a0d7d
support encoding instructions with indexed and scaled memory offsets
2007-12-13 18:59:56 -07:00
Joel Dice
22edd2e6a4
set Verbose to false in heap.cpp
2007-12-08 16:19:48 -07:00
Joel Dice
00b7fa3b9d
assert that fixed object has object mask before marking it
2007-12-07 15:58:38 -07:00
Joel Dice
c096c8f1e4
only consider gen2 oversized if its capacity exceeds (InitialGen2CapacityInBytes / BytesPerWord)
2007-12-07 08:35:28 -07:00
Joel Dice
612f4fa0b8
shrink gen2 segment if it grows too large
2007-12-07 08:31:41 -07:00
Joel Dice
94bae01b39
never call wasCollected() on a fixed object, since it will give a random result
2007-10-29 16:12:16 -06:00
Joel Dice
a80677d673
fix aliasing warnings
2007-10-28 18:51:38 -06:00
Joel Dice
7f1837fecd
move fixed object (mark and sweep) support into heap.cpp and refine algorithms for determining when and how much to GC
2007-10-28 13:14:53 -06:00
Joel Dice
60072b9fdc
implement fixed object support
2007-10-27 19:54:30 -06:00
Joel Dice
3e1dbab0f0
move bitmap helper functions to common.h; preserve callee-saved registers in vmInvoke()
2007-10-11 20:52:16 -06:00
Joel Dice
8b17df5b48
set verbose constants to false in heap.cpp
2007-09-19 08:33:43 -06:00
