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
e4fbadd051
JIT-related GC safety fixes
2007-12-16 15:41:07 -07:00
Joel Dice
12e10b57f5
JIT bugfixes and new instructions; exception propagation and stack traces are functional but not yet entirely correct
2007-12-14 11:27:56 -07:00
Joel Dice
fdeafe46fd
2+2 test now works with new JIT code
2007-12-11 14:26:59 -07:00
Joel Dice
d8374a76e2
check again for entry in monitorMap after entering the exclusive state in objectMonitor() in case another thread beat us to creating a monitor for the object
2007-11-29 08:03:45 -07:00
Joel Dice
5b6a63cbca
avoid uninitialized value warnings
2007-11-27 16:04:15 -07:00
Joel Dice
5fa7b074b4
various threading bugfixes
2007-11-27 15:23:00 -07:00
Joel Dice
0bbe9489a7
flesh out call tracing in new JIT code
2007-11-26 16:15:53 -07:00
Joel Dice
49ed41daa0
refactor stack walking interface in processor.h and sketch stack walking implementation in compile2.cpp
2007-11-25 16:00:55 -07:00
Joel Dice
a017dab73a
handle weak maps properly in hashMapResize, hashMapRemove, etc.; move Processor::parameterFootprint() into machine.h/machine.cpp
2007-11-20 15:24:02 -07:00
Joel Dice
313816ee34
minor tweaks to reduce memory usage
2007-11-06 08:29:05 -07:00
Joel Dice
fe0e542afe
finish support for inline vtables in class objects; convert constant pools from arrays to singletons to reduce memory footprint
2007-11-05 14:40:17 -07:00
Joel Dice
f1bc2be9f9
if we can't resolve a bootstrap class in isAssignableFrom(), we swallow the exception and return false
2007-11-05 09:08:08 -07:00
Joel Dice
16ea75f91c
preserve vm flags of bootstrap class (except for BootstrapFlag) in updateBootstrapClass()
2007-11-05 08:39:48 -07:00
Joel Dice
19d36cc463
implement impdep1 instruction for lazily loading bootstrap classes
2007-11-05 08:29:43 -07:00
Joel Dice
6c0e0c37e2
snapshot
2007-11-05 07:28:46 -07:00
Joel Dice
514be2dc87
snapshot
2007-11-04 16:10:33 -07:00
Joel Dice
94e9bd0fd2
clean up bootstrap type generation to eliminate redundancy (broken)
2007-11-04 14:15:28 -07:00
Joel Dice
7dfbd87a40
bugfixes
2007-11-02 15:42:19 -06:00
Joel Dice
e820b6a8a4
sketch of singleton support
2007-11-02 15:08:14 -06:00
Joel Dice
80775f6cf8
initial sketch of singleton support
2007-11-02 08:15:06 -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
fcc50f4da6
abort if vsnprintf() overflows in makeByteArray
2007-10-26 18:03:28 -06:00
Eric Scharff
6342fc7ccb
Read 2- and 3-byte UTF8 constants gracefully (but not correctly)
2007-10-25 17:58:53 -06:00
Joel Dice
20cc788fa4
support classloading from jar files compiled into the executable
2007-10-25 16:06:05 -06:00
Joel Dice
d4656e8a52
handle ConstantValue attributes for static fields
2007-10-25 13:20:39 -06:00
Joel Dice
b12b779c7f
add support for passing properties to the VM via JNI; use vm.builtins property to specify builtin libraries
2007-10-25 12:33:43 -06:00
Joel Dice
1c90ea5fd6
rewrite main.cpp to use jni.h interface for creating the VM and invoking the main method of the specified class
2007-10-25 09:04:13 -06:00
Joel Dice
92d61c1ba2
superficial tweak
2007-10-24 17:05:14 -06:00
Joel Dice
2c2718fdb5
primitive parseUtf8() implementation to ensure we handle null characters correctly, at least
2007-10-24 15:05:15 -06:00
Joel Dice
ac4b28ffe6
refactor build system to support cross-compiling
2007-10-22 14:56:27 -06:00
Joel Dice
3e84d4438a
revise signatures of mark() and set() to take a target object and offset instead of a target object reference, paving the way for immovable objects
2007-10-22 11:22:30 -06:00
Joel Dice
29b5e81aed
align fields naturally in parseFieldTable
2007-10-16 19:20:36 -06:00
Joel Dice
5f6258045e
implement various floating point instructions; fix Floats.java to actually test something
2007-10-15 13:12:38 -06:00
Joel Dice
659555b6ce
fix use of uninitialized values at root thread creation time when running in stress mode; allocate Thread::defaultHeap on the heap instead of as part of the Thread structure
2007-10-13 19:18:25 -06:00
Joel Dice
96c3b2b6a7
superficial code cleanup
2007-10-12 18:22:52 -06:00
Eric Scharff
05321e97f9
If you pass 0 to printTrace, it will print the stack trace of a null
...
pointer exception. This dramatically simplifies debugging in GDB:
p vm::printTrace(t, 0)
2007-10-12 14:54:37 -06:00
Joel Dice
349fe47c8d
JIT GC progress; fix interface method lookup bug
2007-10-12 11:56:43 -06:00
Joel Dice
d5a8193614
lots of work on stack mapping, plus a couple of bugfixes
2007-10-11 16:43:03 -06:00
Joel Dice
feeaecbfd8
more work on JIT unwinding
2007-10-04 16:41:19 -06:00
Joel Dice
404d996c1e
snapshot
2007-10-03 18:41:54 -06:00
Joel Dice
45dc118ab9
invoke native methods using a common routine, instead of compiling code specific to each method
2007-10-01 09:19:15 -06:00
Joel Dice
7ecb5b9c30
fixes for various recent regressions
2007-09-30 10:32:17 -06:00
Joel Dice
8ae36c05b7
lots of new instructions and bugfixes
2007-09-29 20:48:27 -06:00
Joel Dice
569cfa9e07
implement more instructions; various bugfixes
2007-09-29 14:24:14 -06:00
Joel Dice
79603e284d
sketch of Compiler.compileNative() and ifnull instruction implementation
2007-09-28 17:41:03 -06:00
Joel Dice
d1681c0918
add a few more instructions to compile.cpp and fix bugs in others; invokespecial and invokevirtual are working
2007-09-27 16:20:54 -06:00
Joel Dice
2f3f97d550
clean up compile.cpp and support both x86_64 and i386; further refactoring to support JIT
2007-09-26 17:23:03 -06:00
Joel Dice
e7c8fb645a
JIT works for Instructions.java
2007-09-25 17:53:11 -06:00
