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260 Commits

Author SHA1 Message Date
Joel Dice
cb563f76e1 check superinterfaces when looking up methods and fields 2009-08-03 16:16:41 -06:00
Joel Dice
ad0592df6f print class name properly when throwing NoSuchMethodError 2009-07-29 10:32:16 -06:00
Joel Dice
7b183e8f4e don't run Java finalizers when exiting the VM 2009-07-28 16:58:01 -06:00
Joel Dice
27d863790c Merge branch 'win64' into gnu 
Conflicts:

	makefile
	src/compile-x86.S
	src/x86.S
	src/x86.cpp
 2009-07-25 20:48:36 -06:00
Joel Dice
3787985b25 implement basic finalization support 
This implementation does not conform to the Java standard in that
finalize methods are called from whichever thread happens to be garbage
collecting, and that thread may hold locks, whereas the standard
guarantees that finalize will be run from a thread which holds no locks.
Also, an object will never be finalized more than once, even if its
finalize method "rescues" (i.e. makes reachable) the object such that it
might become unreachable a second time and thus a candidate for
finalization once more.  It's not clear to me from the standard if this
is OK or not.

Nonwithstanding the above, this implementation is useful for "normal"
finalize methods which simply release resources associated with an
object.
 2009-07-21 18:57:55 -06:00
Joel Dice
514d0bf7e5 fix deadlocks and other misbehaviors in class initialization code 2009-07-20 14:12:38 -06:00
Joel Dice
138f8444df Merge branch 'master' into gnu 2009-07-20 08:27:33 -06:00
Joel Dice
8662361f71 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-07-20 08:27:17 -06:00
Joel Dice
47ab980550 fix thread heap overflow corner case in allocate3 
The previous code relied on the invalid assumption that the thread-local
heaps for all threads would have been cleared immediately following a
garbage collection.  However, the last thing the garbage collection
function does is run finalizers which may allocate new objects.  This
can lead allocate3 to call allocateSmall with a size which is too large
to accomodate, overflowing the heap.

The solution is to iterate until there really is enough room for the
original allocation request.
 2009-07-17 19:37:46 -06:00
Joel Dice
3e4336eba4 rearrange finalization code in collect to avoid inifinite recursion when finalizer allocates memory 2009-07-17 09:29:24 -06:00
Joel Dice
9c9eb86b2f fix deadlock in allocate3 when another thread wants to enter the exclusive state 2009-07-16 11:51:35 -06:00
Josh warner
9681a8a1ff added debugging method 'vmAddressFromLine' 2009-06-11 09:44:37 -06:00
Joel Dice
f239424930 implement NewDirectByteBuffer etc. properly when building against Classpath; call JNI_OnLoad if found in newly-loaded libraries 2009-06-10 18:15:00 -06:00
Joel Dice
c1ca653fef intern CONSTANT_Utf8 pool entries to save memory and reduce bootimage size 2009-06-06 18:26:23 -06:00
Joel Dice
ac34bc072c remove obsolete todo comments 2009-06-06 14:58:06 -06:00
Joel Dice
0857f53651 more progress on GNU Classpath compatibility 2009-06-04 17:21:42 -06:00
Joel Dice
98be5c509e more progress towards GNU Classpath compatibility 2009-06-03 16:17:55 -06:00
Joel Dice
ba5105c374 throw NoSuchMethodError in resolveMethod if method not found 2009-06-02 18:55:12 -06:00
Joel Dice
398dec58bb GC bugfixes 2009-05-17 17:43:48 -06:00
Joel Dice
8cb59c9d4c various bugfixes to get Continuations test working 2009-05-16 02:03:03 -06:00
Joel Dice
eb3bd25aa1 code cleanup and build fixes 2009-05-04 19:04:17 -06:00
Joel Dice
0cd4eb2655 early sketch of continuation support 2009-05-03 14:57:11 -06:00
Joel Dice
d1018bf078 update copyright years 2009-03-15 12:02:36 -06:00
Joel Dice
6e6035505c zero heap space ahead of time when allocating raw storage and garbage collecting, not when allocating individual objects 
This helps us support the Java Memory Model without adding a memory
barrier to every object allocation.  It's also potentially more
efficient, since we zero out each heap segment all at once instead of
bit-by-bit with each object allocation.
 2009-03-03 20:05:48 -07:00
Joel Dice
2ca8132d97 implement support for volatile fields 2009-03-02 20:18:15 -07:00
Joel Dice
a1ec71423e Merge branch 'master' into powerpc 
Conflicts:

	makefile
	src/assembler.h
	src/binaryToMacho.cpp
	src/compile.cpp
	src/compiler.cpp
	src/x86.cpp
 2009-02-09 16:22:01 -07:00
Joel Dice
54ad7c4e98 tolerate ConstantValue attributes on non-static fields, since the compiler ensures that they are initialized in any constructors for that class (i.e., the VM does not need to do anything special to initialize them) 2009-01-10 12:25:52 -07:00
Joel Dice
58a90f2b84 fix regressions for non-bootimage case 2008-12-03 19:09:57 -07:00
Joel Dice
25ade1484a lots of bugfixes and refactoring 2008-12-01 19:38:00 -07:00
Joel Dice
eaf30eb909 fix static class initialization when using a boot image 2008-11-29 21:58:09 -07:00
Joel Dice
e44f326377 various bugfixes 2008-11-29 18:39:42 -07:00
Joel Dice
0ec5ad3701 update makefile to optionally build and use a boot image; various bugfixes 2008-11-29 16:08:14 -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
4d1af63ed2 initial work on booting from boot image 2008-11-28 15:02:45 -07:00
Joel Dice
61ecb56e21 Merge branch 'master' of oss:/var/local/git/avian into powerpc 2008-11-25 16:19:21 -07:00
Joel Dice
035aa0ecd4 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian into bootimage 
Conflicts:

	src/compile.cpp
	src/machine.h
	src/util.h
 2008-11-23 17:02:34 -07:00
Joel Dice
207f093464 never trigger a GC due to an immortal allocation 2008-11-23 11:48:39 -07:00
Joel Dice
fb9b2bf173 avoid creating garbage when iterating over hashmaps 2008-11-22 16:38:41 -07:00
Joel Dice
8a7852172e increase heap pool size and fixed footprint threshold constants based on performance profiling and experimentation 2008-11-22 14:47:18 -07:00
Joel Dice
6500f1eff6 initial work to support boot image creation and use 2008-11-21 16:20:35 -07:00
Joel Dice
c80eb51c17 Merge branch 'master' into powerpc 
Conflicts:

	makefile
	src/assembler.h
	src/compile.cpp
	src/compiler.cpp
	src/compiler.h
	src/finder.cpp
 2008-11-11 08:21:48 -07:00
Joel Dice
4d613f404f use dbghelp.dll to generate crash dump file on Windows XP and later 
The dump is written to the directory specified via the avian.crash.dir
system property if that property is set and is not written otherwise.
 2008-10-27 15:13:27 -06:00
Joel Dice
003afdc918 fix heap dump facility to visit all roots 2008-10-24 18:48:10 -06:00
Joel Dice
6a5116e7a7 implement primitive heap dump facility for memory profiling, accessible via Runtime.dumpHeap 
The proper way to do this is to implement a subset of JVMTI, but this
will do the job for now.
 2008-10-21 17:38:20 -06:00
Joel Dice
07daa9be51 free properties array in Machine::dispose 2008-09-30 17:03:13 -06:00
Joel Dice
ac988f7a0d fix static field lookup from interfaces 2008-09-26 18:17:13 -06:00
Joel Dice
1657fb794c support logging addresses and names of JIT-compiled methods to a file specified via a system property 2008-09-19 11:34:37 -06:00
Joel Dice
4a022147cd Merge branch 'master' of oss.readytalk.com:/var/local/git/avian into powerpc 2008-08-16 12:56:41 -06:00
Joel Dice
c8cc7d931b maintain a table to look up methods called via JNI 
This simplifies the JNI implementation for looking up methods.  It also
fixes a bug where an applications calls GetStaticMethodID with class A
and then calls CallStatic<Type>Method with class B which extends A.  The
old code would look in the wrong method table and thus call the wrong
method.
 2008-08-15 12:32:33 -06:00
Joel Dice
22a5707966 remove obsolete code from postVisit; upgrade assert to expect for debugging 2008-08-11 15:16:55 -06:00
Joel Dice
4299063be9 Merge branch 'master' of oss:/var/local/git/avian into powerpc 2008-07-23 17:58:36 -06:00
Joel Dice
522e2ebc9f fix bug in debug helper function 2008-07-21 14:41:29 -06:00
Joel Dice
6e3bbd3c5f Merge branch 'master' of oss:/var/local/git/avian into powerpc 2008-07-17 17:34:52 -06:00
Zsombor
0e539615e7 add Thread.name field 2008-07-13 18:21:04 -06:00
Joel Dice
2343483d8e Merge branch 'master' of oss:/var/local/git/avian into powerpc 2008-07-13 12:47:49 -06:00
Joel Dice
e31f795661 include Thread::backupHeapIndex in heap footprint calculation 2008-07-11 19:21:53 -06:00
Joel Dice
23043d140f snapshot 2008-07-05 14:21:13 -06:00
Joel Dice
61e65098df use virtual dispatch when calling Thread.run from VM 2008-06-25 10:28:11 -06:00
Eric Scharff
2bfe6f0d13 Ensure we align the stack before any time we might enter a C function from 
generated code
 2008-06-16 10:55:29 -06:00
Joel Dice
7dcd109567 assert thread is in exclusive or exit state in removeMonitor 2008-05-05 07:07:59 -06:00
Joel Dice
ebb498587f enter exclusive state in collect function instead of requiring caller to enter that state before calling 2008-05-05 07:04:53 -06:00
Joel Dice
d072b71c39 nth attempt to clean up MyStackWalker 2008-04-23 10:33:31 -06:00
Joel Dice
df5258d1d8 various bugfixes concerning Thread.getStackTrace 2008-04-21 16:36:13 -06:00
Joel Dice
0d3e6b7793 simplify memory allocation interfaces 2008-04-13 12:15:04 -06:00
Joel Dice
04c3abc967 fix broken thread tree traversal in machine.cpp 2008-04-11 16:48:05 -06:00
Joel Dice
2d6eebf4d1 more progress on general stack tracing 2008-04-09 13:08:13 -06:00
Joel Dice
3915371897 Merge branch 'master' of oss:/var/local/git/avian into dynamic 2008-04-02 06:58:19 -06:00
Joel Dice
6379f50d35 fix thinko in stringChars 2008-04-02 06:57:25 -06:00
Joel Dice
0aebe334b3 Merge branch 'master' of oss:/var/local/git/avian into dynamic 2008-04-01 17:25:18 -06:00
Joel Dice
08b401f337 implement GetStringLength, GetStringChars, and ReleaseStringChars 2008-04-01 17:24:43 -06:00
Joel Dice
1c49b3bc1b Merge branch 'master' of oss:/var/local/git/avian into dynamic 2008-04-01 11:38:15 -06:00
Joel Dice
907382bcee fix broken field alignment in parseFieldTable which caused longs to overlap other fields on 32-bit systems in certain cases 2008-03-31 18:34:57 -06:00
Joel Dice
74295bb707 interpret avian.bootstrap property as a complete file name 2008-03-31 12:57:49 -06:00
Joel Dice
357bd29460 support building Avian as a self-contained dynamic library 2008-03-30 21:43:43 -06:00
Joel Dice
9cb21a29a6 fix handling of interface vtables for abstract classes 2008-03-21 17:42:36 -06:00
Joel Dice
56389dd2e1 don't populate interface vtables for abstract classes 2008-03-20 18:37:21 -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
d693393293 remove Machine::lastLibrary and rename firstLibrary to libraries 2008-01-29 08:19:15 -07:00
Joel Dice
008ac07079 refactor native method resolution to be simpler and more robust 2008-01-28 10:27:02 -07:00
Joel Dice
de6a1ded92 ensure that we populate the interface vtables of a class which does not declare any new virtual methods but does implement new interfaces relative to its superclass 2008-01-28 08:12:06 -07:00
Joel Dice
e403a625d1 second try to fix library symbol lookup 2008-01-25 16:38:26 -07:00
Joel Dice
35ada0ea65 search libraries for symbols in the order they are loaded 2008-01-25 16:25:30 -07:00
Joel Dice
73ba3fcef7 fix build breakage in stress mode 2008-01-23 09:55:29 -07:00
Joel Dice
125fe3440e allow java.lang.Object with no virtual methods, which may occur due to code shrinking 2008-01-21 16:42:12 -07:00
Joel Dice
ee60d48cfe fix subtle bug in hashMapInsert which caused us to update the old array previously associated with the hash map, whereas a GC causes the table to be resized when a weak reference is removed and thus a new array used 2008-01-19 13:12:16 -07:00
Joel Dice
d97fab6036 comment out some debugging log messages 2008-01-18 18:49:30 -07:00
Joel Dice
35160e46d8 don't include embedded boot classpath in libvm.a, only the executable 2008-01-18 17:54:36 -07:00
Joel Dice
e2fc8a62c7 permit state transitions from idle to exclusive 2008-01-17 18:47:32 -07:00
Joel Dice
9ad00d0ea3 remove unused function and add some thread state assertions 2008-01-17 18:27:44 -07:00
Joel Dice
f5f7b01689 remove extern "C" modifier from vmPrintTrace definition 2008-01-16 10:48:14 -07:00
Joel Dice
4571e75f7a add vmPrintTrace function which can print a Java stack trace without allocating memory 2008-01-16 10:30:12 -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
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
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