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2271 Commits

Author SHA1 Message Date
Joel Dice
1f67aea456 fix process=interpret build 2010-09-27 17:12:08 -06:00
Joel Dice
c1c9d2111b remove GNU Classpath and Apache Harmony compatibility code 
Rather than try to support mixing Avian's core classes with those of
an external class library -- which necessitates adding a lot of stub
methods which throw UnsupportedOperationExceptions, among other
comprimises -- we're looking to support such external class libraries
in their unmodified forms.  The latter strategy has already proven
successful with OpenJDK's class library.  Thus, this commit removes
the stub methods, etc., which not only cleans up the code but avoids
misleading application developers as to what classes and methods
Avian's built-in class library supports.
 2010-09-27 15:58:02 -06:00
Joel Dice
8c789fb92c return empty object array from MyProcessor::getStackTrace on failure 2010-09-27 09:39:44 -06:00
Joel Dice
1d4b54a9f6 fix failure to add abstract virtuals to class with no declared virtuals 2010-09-25 16:35:18 -06:00
Joel Dice
268d2de175 cache array class lookups in element class; misc. bugfixes 2010-09-25 15:54:01 -06:00
Joel Dice
a2cc95d196 remove trailing whitespace in compile.cpp 2010-09-25 15:52:43 -06:00
Joel Dice
e75b57a127 don't abort when compiling an array lookup with a constant negative index 
Instead, just compile it as a direct call to the thunk which throws an
ArrayIndexOutOfBoundsException.
 2010-09-25 15:48:15 -06:00
Joel Dice
ebc54c234f fix signedness error for wide iinc implementation 2010-09-23 08:50:09 -06:00
Joel Dice
b023d147df fix JVM_Available for when fd is a fifo or socket 2010-09-23 08:49:36 -06:00
Joel Dice
89f6adc93c fix various classloading deadlocks and races 2010-09-22 13:58:46 -06:00
Joel Dice
efd3ccb04f set java.home to path of JRE, not JDK 2010-09-20 18:38:38 -06:00
Joel Dice
17f495eb27 rework OpenJDK build to derive classpath and library path from environment 
We now consult the JAVA_HOME environment variable to determine where
to find the system library JARs and SOs.  Ultimately, we'll want to
support self-contained build, but this allows Avian to behave like a
conventional libjvm.so.
 2010-09-20 17:31:23 -06:00
Joel Dice
64e42da348 implement avian.Handler.ResourceInputStream.available 2010-09-17 16:11:04 -06:00
Joel Dice
93c9395f1d comment-out debug logging 2010-09-17 16:10:26 -06:00
Joel Dice
a0a23b4692 implement JVM_Yield 2010-09-17 16:10:01 -06:00
Joel Dice
d0d53e2e10 fix custom-classloader-related concurrency problems and other bugs 
The main changes in this commit ensure that we don't hold the global
class lock when doing class resolution using application-defined
classloaders.  Such classloaders may do their own locking (in fact,
it's almost certain), making deadlock likely when mixed with VM-level
locking in various orders.

Other changes include a fix to avoid overflow when waiting for
extremely long intervals and a GC root stack mapping bug.
 2010-09-16 20:49:02 -06:00
Joel Dice
f485016637 implement more JVM_* methods and avoid duplicate array class loading 2010-09-14 18:52:57 -06:00
Joel Dice
d819a75f36 more work towards OpenJDK classpath support 
The biggest change in this commit is to split the system classloader
into two: one for boot classes (e.g. java.lang.*) and another for
application classes.  This is necessary to make OpenJDK's security
checks happy.

The rest of the changes include bugfixes and additional JVM method
implementations in classpath-openjdk.cpp.
 2010-09-14 10:49:41 -06:00
Joel Dice
561ee6dff9 add debug logging to finder.cpp 2010-09-13 20:38:55 -06:00
Joel Dice
66280458c8 implement more JVM_* methods 2010-09-10 17:47:23 -06:00
Joel Dice
ea2509666a reverse operands when calling builtin isAssignableFrom 
Our builtin function reverses the meanings of the operands relative to
the JNI method.
 2010-09-10 17:45:52 -06:00
Joel Dice
64100d17c7 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian into openjdk 2010-09-10 15:58:43 -06:00
Joel Dice
cddea7187d preliminary support for using OpenJDK's class library 
Whereas the GNU Classpath port used the strategy of patching Classpath
with core classes from Avian so as to minimize changes to the VM, this
port uses the opposite strategy: abstract and isolate
classpath-specific features in the VM similar to how we abstract away
platform-specific features in system.h.  This allows us to use an
unmodified copy of OpenJDK's class library, including its core classes
and augmented by a few VM-specific classes in the "avian" package.
 2010-09-10 15:05:29 -06:00
Joel Dice
d9e79db062 Merge branch 'master' into arm 2010-09-03 23:26:08 +01:00
jet
a1f5456451 All tests passing for ARM port in JIT mode. 2010-09-03 12:52:11 -06:00
Joel Dice
dd0a696932 handle logical AND with a constant in a single instruction where possible 2010-09-03 18:32:22 +01:00
Joel Dice
e7a48c0fa2 save return address in powerpc.cpp's MyAssembler::saveFrame 
We've been getting away with not doing this so far since our Java
calling convention matches the native calling convention concerning
where the return address is saved, so when our thunk calls native code
it gets saved for us automatically.  However, there was still the
danger that a thread would interrupt another thread after the stack
pointer was saved to the thread field but before the native code was
called and try to get a stack trace, at which point it would try to
find the return address relative to that stack pointer and find
garbage instead.  This commit ensures that we save the return address
before saving the stack pointer to avoid such a situation.
 2010-09-02 17:28:20 -06:00
Joel Dice
bd01784249 save return address in arm.cpp's MyAssembler::saveFrame 
This is necessary to allow safe stack unwinding (e.g. for exception
handling and garbage collection) from native code.
 2010-09-03 00:18:19 +01:00
jet
a20d7e028b Longs.java test now progresses further before failure. 2010-09-02 16:09:01 -06:00
Joel Dice
17c1a552d5 break each Class, Field, and Method into separate classes 
In order to facilitate making the VM compatible with multiple class
libraries, it's useful to separate the VM-specific representation of
these classes from the library implementations.  This commit
introduces VMClass, VMField, and VMMethod for that purpose.
 2010-09-01 10:13:52 -06:00
jet
b26dd4abf1 All but 6 tests are now passing in JIT mode on ARM. 2010-08-31 18:35:55 -06:00
Joel Dice
a4914daae4 remove unused functions from powerpc.cpp 2010-08-30 16:55:48 -06:00
jet
b6a839950f Nine tests (including float and integer calculations) are now passing. 2010-08-30 16:13:10 -06:00
Joel Dice
56b59cef5c use r6 instead of r0 in popFrameAndUpdateStackAndReturn 
This avoids clobbering the return value.
 2010-08-30 16:16:02 +01:00
jet
f740570ff6 Further debugging of ARM "Hello World!" JIT functionality. 2010-08-27 18:52:33 -06:00
jet
5c00cfac6f Incomplete debugging of "Hello World!" on ARM. 2010-08-24 17:59:01 -06:00
Joel Dice
be1ba2ccf8 fix gnu build 2010-08-16 09:24:27 -06:00
Joel Dice
fca98df55b fix process=interpret class initialization regression 
A long time ago, I refactored the class initialization code in the VM,
but did not notice until today that it had caused the
process=interpret build to break on certain recursive initializations.
In particular, we were not always detecting when a thread recursively
tried to initialize a class it was already in the process of
initializing, leading to the mistaken assumption that another thread
was initializing it and that we should wait until it was done, in
which case we would wait forever.

This commit ensures that we always detect recursive initialization and
short-circuit it.
 2010-08-04 18:27:54 -06:00
Joel Dice
ddc90ef76e fix 64-bit left shifts with constant shifts greater than or equal to 32 
The shiftLeftC function in powerpc.cpp was miscompiling such shifts,
leading to crashes due to illegal instructions and other weirdness due
to instructions that meant something completely different.  This
commit fixes that and adds a test to Longs.java to make sure it stays
fixed.
 2010-07-23 10:52:58 -06:00
Joel Dice
4034a219d0 do nothing in System.arraycopy if length <= 0 
Previously, we risked segfaults by passing negative numbers to memcpy.

This commit also makes arraycopy throw an IndexOutOfBounds exception
instead of an ArrayStoreException if the specified offsets and lengths
would take us outside the bounds of one or both of the arrays, per the
Sun documentation.
 2010-07-13 18:40:29 -06:00
jet
d9aac52b3d First version; interpreted mode works and JIT mode compiles. 2010-07-12 14:18:36 -06:00
Joel Dice
1f8130f566 handle virtual thunk case in MyProcessor::getStackTrace 
If we catch the target thread in a virtual thunk when getting its
stack trace, we must assume its Thread::stack field is garbage and use
the register values instead.  Previously, we treated these thunks as
any other native code, leading to crashes when we tried to use the
garbage pointer.
 2010-07-06 16:13:11 -06:00
Joel Dice
bf8eb52611 reduce CodeCapacity value to 16MB in bootimage.cpp 
32MB was just slightly too large for PowerPC immediate call instructions
to span, and 16MB matches the JIT executable memory area we use in
compile.cpp.
 2010-06-25 21:54:01 -06:00
Joel Dice
6d887ef34f comment-out debug logging in powerpc.cpp 2010-06-25 21:51:32 -06:00
Joel Dice
d308ba93c7 fix tails=true bootimage=true build 
compileDirectInvoke does some magic to optimize tail calls to native
methods which involves storing the return address (which we'll never
actually return to, since it's a tail call) in a thread-local field so
the thunk function can figure out which native method to look up at
runtime.  Since this address will change when the boot image is
loaded, the boot image creation code needs to know about it.
 2010-06-25 21:13:59 -06:00
Joel Dice
98b82a9bc1 fix callContinuation regression 
callContinuation failed to call the correct continuation when feeding
it an exception due to a regression introduced with the
Thread.getStackTrace changes.
 2010-06-25 09:51:35 -06:00
Joel Dice
74930d75e7 update PowerPC assembly Thread field offsets 
The new Thread::defaultHeap declaration has increased the offset of all
the fields following it.

This commit also makes vmInvoke_returnAddress global so it can be refered
to from compile.cpp.
 2010-06-24 19:35:07 -06:00
Joel Dice
2d6a179bf2 update assembly code field offsets to reflect new Thread field declaration 
Thread::defaultHeap is now an inline array, which means the offsets of
all the fields following have increased.
 2010-06-24 19:12:15 -06:00
Joel Dice
3e304521d0 initialize MyProcessor::callTableSize in constructor 
This field was being used uninitialized, which could lead to an out of
memory condition when we tried to grow the call table to a ridiculous
size.
 2010-06-24 19:09:50 -06:00
Joel Dice
3018290238 pre-allocate Thread::backupHeap for signal safety 
It's not safe to use malloc from a signal handler, so we can't
allocate new memory when handling segfaults or Thread.getStackTrace
signals.  Instead, we allocate a fixed-size backup heap for each
thread ahead of time and use it if there's no space left in the normal
heap pool.  In the rare case that the backup heap isn't large enough,
we fall back to using a preallocated exception without a stack trace
as a last resort.
 2010-06-19 16:40:21 -06:00
Joel Dice
7ea6036842 fix isThunkUnsafeStack 
This function was broken in two different ways:

 1. It only checked MyProcessor::thunks, not MyProcessor::bootThunks.
    It needs to check both.

 2. When checking MyProcessor::thunks, it used fields from
    MyProcessor::bootThunks instead of from the same thunk collection.

This fixes both problems.
 2010-06-16 20:29:41 -06:00
Joel Dice
ea797fd03c fix windows build 2010-06-16 18:37:22 -06:00
Joel Dice
39a82a4006 update bootimage.cpp to reflect BootImage restructuring 2010-06-15 19:49:48 -06:00
Joel Dice
18d1c54956 fix typo in compile-x86.S 2010-06-15 19:47:06 -06:00
Joel Dice
9559aca825 fix Thread.getStackTrace race conditions 
Implementing Thread.getStackTrace is tricky.  A thread may interrupt
another thread at any time to grab a stack trace, including while the
latter is executing Java code, JNI code, helper thunks, VM code, or
while transitioning between any of these.

To create a stack trace we use several context fields associated with
the target thread, including snapshots of the instruction pointer,
stack pointer, and frame pointer.  These fields must be current,
accurate, and consistent with each other in order to get a reliable
trace.  Otherwise, we risk crashing the VM by trying to walk garbage
stack frames or by misinterpreting the size and/or content of
legitimate frames.

This commit addresses sensitive transition points such as entering the
helper thunks which bridge the transitions from Java to native code
(where we must save the stack and frame registers for use from native
code) and stack unwinding (where we must atomically update the thread
context fields to indicate which frame we are unwinding to).  When
grabbing a trace for another thread, we determine what kind of code we
caught the thread executing in and use that information to choose the
thread context values with which to begin the trace.  See
MyProcessor::getStackTrace::Visitor::visit for details.

In order to atomically update the thread context fields, we do the
following:

 1. Create a temporary "transition" object to serve as a staging area
    and populate it with the new field values.

 2. Update a transition pointer in the thread object to point to the
    object created above.  As long as this pointer is non-null,
    interrupting threads will use the context values in the staging
    object instead of those in the thread object.

 3. Update the fields in the thread object.

 4. Clear the transition pointer in the thread object.

We use a memory barrier between each of these steps to ensure they are
made visible to other threads in program order.  See
MyThread::doTransition for details.
 2010-06-15 19:10:48 -06:00
Joel Dice
a31ae24005 Merge branch 'wip' 2010-05-03 16:32:40 -06:00
Eric Scharff
9909c0cec3 Fix Mac OS X specific path bug 
In Mac OS X, if a path contains a space, the path of the main executable
will contain a special URL-encoded character (%20 in this case).  This
probably happens when any non-ASCII character is provided.

The fix is to use CFURLCreateStringByReplacingPercentEscapes which
creates a path that the POSIX API likes better.
 2010-04-26 10:24:53 -06:00
JET
3aac50555b fixed ARM interpreted-mode regression 2010-04-20 15:51:35 -06:00
JET
1ea2a3a6dc Merge branch 'wip' of oss.readytalk.com:/var/local/git/avian into wip 2010-04-20 10:04:47 -06:00
JET
c666ab58e3 Improved (should now be complete) Unicode support (UTF-8 for *nix and UTF-16 for Windows). 2010-04-20 10:03:07 -06:00
Joel Dice
e5fad03632 fix MSVC build rot 2010-04-15 11:11:10 -06:00
JET
34f51114a1 Merge branch 'master' into wip 2010-04-14 09:27:24 -06:00
JET
b2f5e71d22 ARM and UTF-8 work 2010-04-14 09:26:50 -06:00
Joel Dice
03ec9e6f19 Merge branch 'master' into wip 2010-04-14 09:22:42 -06:00
Joel Dice
3e5b2cbc7b fix miscompilation of 64-bit volatile field reads and writes on x86_32 
We were generating code which clobbered the data we were putting into
64-bit volatile fields (and potentially also clobbering the target or
source object in the case of non-static fields) due to misplaced
synchronization code.  Reordering this code ensures that both the data
and the target or source survive across calls to synchronization
helper functions.
 2010-03-01 18:24:25 -07:00
Joel Dice
c2a9424f91 implement compileTimeMemoryBarrier in arch.h 
This has the same implementation as programOrderMemoryBarrier in
x86.h, but makes it available on all architectures.
 2010-02-04 18:30:13 -07:00
Joel Dice
99bb7924b0 fix stack frame mapping code for exception handlers 
Previously, the stack frame mapping code (responsible for statically
calculating the map of GC roots for a method's stack frame during JIT
compilation) would assume that the map of GC roots on entry to an
exception handler is the same as on entry to the "try" block which the
handler is attached to.  Technically, this is true, but the algorithm
we use does not consider whether a local variable is still "live"
(i.e. will be read later) when calculating the map - only whether we
can expect to find a reference there via normal (non-exceptional)
control flow.  This can backfire if, within a "try" block, the stack
location which held an object reference on entry to the block gets
overwritten with a non-reference (i.e. a primitive).  If an exception
is later thrown from such a block, we might end up trying to treat
that non-reference as a reference during GC, which will crash the VM.

The ideal way to fix this is to calculate the true interval for which
each value is live and use that to produce the stack frame maps.  This
would provide the added benefit of ensuring that the garbage collector
does not visit references which, although still present on the stack,
will not be used again.

However, this commit uses the less invasive strategy of ANDing
together the root maps at each GC point within a "try" block and using
the result as the map on entry to the corresponding exception
handler(s).  This should give us safe, if not optimal, results.  Later
on, we can refine it as described above.
 2010-02-04 18:03:32 -07:00
Joel Dice
c9b9db1621 reimplement Java object monitors (second try) 
See commit 8120bee4dc for the original
problem description and solution.  That commit and a couple of related
ones had to be reverted when we found they had introduced GC-safety
regressions leading to crashes.

This commit restores the reverted code and fixes the regressions.
 2010-02-04 17:56:21 -07:00
Joel Dice
48834be209 revert recent commits to reimplement Java object monitors 
We're seeing race conditions which occasionally lead to assertion
failures and thus crashes, so I'm reverting these changes for now:

29309fb414
e92674cb73
8120bee4dc
 2010-02-04 08:18:39 -07:00
Joel Dice
29309fb414 update Thread field offsets to reflect recent additions 
Every time we add or remove fields to Thread, we need to update the
assembly code to reflect the new offsets.
 2010-02-02 12:26:09 -07:00
Joel Dice
e92674cb73 fix race condition in monitorWait 
We don't want to check Thread::waiting until we have re-acquired the
monitor, since another thread might notify us between releasing
Thread::lock and acquiring the monitor.
 2010-02-02 12:24:05 -07:00
Joel Dice
3bc37d6e2a fix encoding of single byte register-to-memory moves on x86_64 
We need to prefix instructions of the form "mov R,M" with a REX byte
when R is %spl, %bpl, %sil, or %dil.  Such moves are unencodable on
32-bit x86, and, because of the order in which we pick registers,
pretty rare on 64-bit systems, which is why this took so long to
notice.
 2010-02-02 11:37:08 -07:00
Joel Dice
8120bee4dc reimplement Java object monitors to avoid running out of OS handles 
Due to SWT's nasty habit of creating a new object monitor for every
task added to Display.asyncExec, we've found that, on Windows at
least, we tend to run out of OS handles due to the large number of
mutexes we create between garbage collections.

One way to address this might be to trigger a GC when either the
number of monitors created since the last GC exceeds a certain number
or when the total number of monitors in the VM reaches a certain
number.  Both of these risk hurting performance, especially if they
force major collections which would otherwise be infrequent.  Also,
it's hard to know what the values of such thresholds should be on a
given system.

Instead, we reimplement Java monitors using atomic compare-and-swap
(CAS) and thread-specific native locks for blocking in the case of
contention.  This way, we can create an arbitrary number of monitors
without creating any new native locks.  The total number of native
locks needed by the VM is bounded instead by the number of live
threads plus a small constant.

Note that if we ever add support for an architecture which does not
support CAS, we'll need to provide a fallback monitor implementation.
 2010-02-01 18:40:47 -07:00
Joel Dice
45476eb591 fix handling of volatile longs and doubles on PowerPC 
We were miscompiling methods which contained getfield, getstatic,
putfield, or putstatic instructions for volatile 64-bit primitives on
32-bit PowerPC due to not noticing that values in registers are clobbered
across function calls.

The solution is to create a separate Compiler::Operand instance for each
object monitor reference before and after the function call to avoid
confusing the compiler.  To avoid duplicate entries in the constant pool,
we add code look for and, if found, reuse any existing entry for the same
constant.
 2010-01-27 17:46:04 -07:00
jet
ea4b4bfcbf Merge branch 'wip' of oss.readytalk.com:/var/local/git/avian into wip 2010-01-06 10:57:55 -07:00
Joel Dice
3686d2131d fix jsr/ret code generation bug 
We were generating code to marshal values into place prior to a jump,
but placing it after the jump instruction, which made it useless.
 2010-01-04 17:17:16 -07:00
Joel Dice
20f92bbd05 specify java.home system property in GNU Classpath build 
Currently, we just set this to /tmp (or the equivalent) since Avian
doesn't really have a home.  This avoids a NullPointerException from
javax/xml/parsers/SAXParserFactory.
 2010-01-04 17:14:00 -07:00
jet
8c8020811a Merge branch 'wip' of oss.readytalk.com:/var/local/git/avian into wip 2009-12-28 11:14:26 -07:00
Joel Dice
664cb3cd39 don't try to parse annotation tables more than once; use defining classloader when loading array classes during linking 2009-12-24 17:58:48 -07:00
Joel Dice
805d1d13d8 mark system classloader initialized when using GNU Classpath to avoid security exceptions; only look for field in interfaces after looking in class and superclasses 2009-12-24 17:57:07 -07:00
Joel Dice
40c65f66bf add (commented-out) debug logging to gnu.cpp 2009-12-24 17:54:02 -07:00
Joel Dice
7b2322e7f7 accept any source site in resolveTargetSites, whether it matches the next read or not 2009-12-24 17:47:58 -07:00
jet
77990b9489 Merge branch 'wip' of oss.readytalk.com:/var/local/git/avian into wip 2009-12-23 09:26:17 -07:00
Joel Dice
f588a62ae3 fix Classpath 0.98 compatibility issues 2009-12-22 21:34:04 -07:00
Joel Dice
30db38ebd6 replace calls to ExceptionOccurred with calls to ExceptionCheck 
The latter is cheaper (avoids a state transition and possible memory
allocation) when we just want to know if an exception is thrown
without needing a handle to that exception.
 2009-12-16 19:25:03 -07:00
Joel Dice
4c0ede8b9a reuse JNI references when possible 
Before allocating a new reference in NewGlobalReference or when
creating a local reference, we look for a previously-allocated
reference pointing to the same object.  This is a linear search, but
usually the number of elements in the reference list is small, whereas
the memory, locking, and allocation overhead of creating duplicate
references can be large.
 2009-12-16 19:16:51 -07:00
Joel Dice
7cf25a0fc3 fix process=interpret build 2009-12-14 18:01:28 -07:00
Joel Dice
d5f5c2351b use _ReadWriteBarrier intrinsic for MSVC build 2009-12-12 18:50:59 -07:00
Joel Dice
2b4361c060 fix GNU Classpath build 2009-12-05 19:40:46 -07:00
Joel Dice
b6ac05ba9d remove unecessary code from resolveSourceSites and resolveTargetSites 2009-12-05 15:49:53 -07:00
jent
4cf9e16897 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-12-04 12:02:06 -07:00
jent
99a1c12682 Files to add Deflater and DeflaterOutputStream to java.util.zip for 
avian
 2009-12-04 12:01:31 -07:00
Joel Dice
0e4fabffb7 fix incorrect parameter to maybeRex call in sseMoveRR 2009-12-03 17:57:28 -07:00
Joel Dice
60333c88f5 fix continuations=true build for Windows x86_64 2009-12-03 12:46:29 -07:00
Joel Dice
7cdf63c045 fix continuations=true build for Darwin 2009-12-02 23:15:27 -07:00
Joel Dice
f0e66eea37 remove extra semicolon 2009-12-02 23:09:05 -07:00
Joel Dice
7a3bf85caf fix bootimage=true build for Windows 2009-12-02 20:08:07 -07:00
Joel Dice
b218117881 fix continuations=true build for Cygwin 2009-12-02 19:37:22 -07:00
Joel Dice
8b11f0c271 fix continuations=true build for Windows 2009-12-02 19:29:57 -07:00
Joel Dice
6118792ffd update copyright years 2009-12-02 19:08:29 -07:00
jet
e516f3ce1c Merge branch 'wip' of oss.readytalk.com:/var/local/git/avian into wip 2009-12-02 13:45:21 -07:00
Joel Dice
3777c9b429 fix MSVC build 2009-12-02 08:49:10 -07:00
Joel Dice
5a0e00ca39 GC safety bugfix 2009-12-01 22:41:12 -07:00
Joel Dice
80d3a286d1 check bootThunkTable as well as thunkTable in MyProcessor::getStackTrace 
We need to check to see if we caught the thread somewhere in the thunk
code (i.e. about to call a helper function), in which case the stack
and base pointers are valid and may be used to create an accurate
trace.
 2009-12-01 18:17:33 -07:00
Joel Dice
168e206812 fix GCC 3.4 build 2009-12-01 17:33:30 -07:00
Joel Dice
f216fe37ff fix regression which led to register exhaustion 2009-12-01 11:14:57 -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
jet
69c9bf5ff9 Merge branch 'wip' of oss.readytalk.com:/var/local/git/avian into wip 2009-11-30 14:00:51 -07:00
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
jet
993d210232 Merge branch 'wip' of oss.readytalk.com:/var/local/git/avian into wip 2009-11-23 10:04:16 -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
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
fdde34694c use atomic operations in MyHeap::mark to avoid need for mutex 2009-11-19 18:13:00 -07:00
Joel Dice
c711ac5701 return null from NewString[UTF] if the char* parameter is null 2009-11-18 11:01:47 -07:00
jet
2f54eb5e55 Merge branch 'wip' of oss.readytalk.com:/var/local/git/avian into wip 2009-11-05 11:16:58 -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
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
jet
ad379e1b20 Merge branch 'wip' of oss.readytalk.com:/var/local/git/avian into wip 2009-11-03 11:50:21 -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
jet
50dae3067d modified binaryToObject to support ARM 2009-10-30 15:04:15 -06:00
Joel Dice
e825da60aa update continuation constants to reflect new field offsets 2009-10-30 00:45:46 +00:00
jet
d901653979 Merge branch 'master' into wip 
Conflicts:

	src/compile.cpp
 2009-10-29 14:23:20 -06:00
jet
d3d228e69b moduloInt + arm work 2009-10-29 14:14:44 -06:00
jet
e00fc5d91a ARM port work 2009-10-29 10:12:30 -06:00
Joel Dice
3c893b2ee3 Merge commit 'origin/master' into wip 2009-10-27 10:36:19 -06:00
Joel Dice
1fd00dd55d revert all __attribute__ ((externally_visible)) changes because it's not clear yet how to detect whether it's supported 2009-10-27 10:35:26 -06:00
Joel Dice
e3b21e80ba Merge commit 'origin/master' into wip 2009-10-27 09:41:20 -06:00
Joel Dice
f57d80f1b7 ammend recent commit to avoid using __attribute__ ((externally_visible)) when it is not available (second try) 2009-10-27 09:41:00 -06:00
Joel Dice
8bf3487ff1 Merge commit 'origin/master' into wip 2009-10-27 09:35:13 -06:00
Joel Dice
51fcf1ef74 ammend recent commit to avoid using __attribute__ ((externally_visible)) when it is not available 2009-10-27 09:34:46 -06:00
Joel Dice
2efff818ea Merge commit 'origin/master' into wip 2009-10-27 09:17:54 -06:00
Joel Dice
4570b86da0 add __attribute__ ((externally_visible)) to EXPORT macros to facilitate whole-program optimization using GCC 4.5 2009-10-27 09:16:08 -06:00
Joel Dice
c8d5c1faed visit all frame locations in resolveOriginalSites 
Previously, we only visited frame locations containing values, but
this invited the possibility of reusing the same site for two
locations in some cases.
 2009-10-26 17:59:20 -06:00
Joel Dice
3b4be3decd defer to helper thunk for frem and drem 2009-10-24 19:29:20 -06:00
Joel Dice
95c3f37bfb fix various bugs involving doubles on 32-bit systems 2009-10-24 17:18:56 -06:00
Joel Dice
064ad572bc use truncation, not rounding in float2Int instructions 2009-10-20 15:43:24 -06:00
Joel Dice
f27ecaa199 fix memcpy argument order in Avian_avian_Singleton_getLong 2009-10-20 13:38:05 -06:00
Joel Dice
e06f0407cb fix powerpc bootimage build (second try) 2009-10-20 09:06:52 -06:00
Joel Dice
c044781807 fix powerpc bootimage build 2009-10-20 08:20:49 -06:00
Joel Dice
984f3106fd fix powerpc build 2009-10-19 10:31:34 -06:00
Joel Dice
1a63b72b41 clean up float-vs.-int tracking in constant pools 2009-10-17 20:11:03 -06:00
Joel Dice
15020d77a6 refactor intrinsic support 
This ensures that the low-level, architecture specific code need not
be aware of the semantics and names of Java methods.
 2009-10-17 19:26:14 -06:00
Joel Dice
f702795178 fix integer truncation bug 2009-10-17 18:35:19 -06:00
Joel Dice
cec6444911 fix bootimage build for case where the JIT code area is too far from the AOT code area to do immediate-offset jumps between them 2009-10-17 18:18:03 -06:00
Joel Dice
963bfb3e3f avoid array bounds warnings from GCC 4.3 
These warnings are due to GCC being smart enough to do interprocedural
constant propagation but not smart enough to avoid false positives in
all cases when looking for array bounds errors.
 2009-10-17 18:09:54 -06:00
Joel Dice
7b0378c180 support darwin/x86_64 2009-10-14 10:01:37 -06:00
Joel Dice
ef4a8430ad add binaryToObject utility 
We use this utility instead of objcopy to embed data into object files
because it offers more control over e.g. section alignment, which is
important for bootimage builds.
 2009-10-13 19:00:16 -06:00
Joel Dice
87950e86b8 add missing parameter to native SystemClassLoader methods 2009-10-13 18:42:49 -06:00
Joel Dice
9fcdfaf7ff implement binaryToElf utility and use it instead of objcopy on Linux 
This is necessary because objcopy does not currently allow us to
specify the alignment requirement for the .boot section used to store
the boot image for AOT builds.  This may be a problem for Windows as
well, in which case we'll need to add a binaryToPE utility.
 2009-10-11 16:09:23 -06:00
Joel Dice
c65b106112 whitespace tweak in binaryToMacho.cpp 2009-10-11 16:06:09 -06:00
Joel Dice
b878b84d32 set DebugCompile to false in compile.cpp 2009-10-11 16:05:37 -06:00
Joel Dice
b4c1c6badf fix process=interpret build 2009-10-10 18:23:14 -06:00
Joel Dice
44a6620aa1 disable use of SSE when compiling ahead-of-time 2009-10-10 17:46:43 -06:00
Joel Dice
38bf29300f enable SSE<->GPR moves when size matches word size 2009-10-10 22:27:35 +00:00
Joel Dice
78d9e51b7e replace hasMoreThanOneSite with uniqueSite; rename Value fields 
uniqueSite also checks, if applicable, to see if the second word of a
value shares the specified site with the first value as its sole site.

Also renamed a couple of fields in Value for clarity.
 2009-10-10 16:07:30 -06:00
Joel Dice
622b3d1c4e replace compare and branch instructions with combined versions 
This allows the assembler to see the operand types of the comparison
and the condition for jumping in the same operation, which is
essential for generating efficient code in cases such as
multiple-precision compare-and-branch.
 2009-10-10 15:03:23 -06:00
Joel Dice
609a1a9633 snapshot 2009-10-07 00:50:32 +00:00
Joel Dice
23197da679 fix handling of subroutines in methods of return type long on 32-bit systems 2009-10-06 03:17:12 +00:00
Joel Dice
4f78783ef1 various bugfixes for SSE-based floating-point support 2009-10-05 14:25:12 +00:00
Joel Dice
d25da6116a snapshot 2009-10-04 22:10:36 +00:00
Joel Dice
5dad9bddd6 snapshot 2009-10-04 19:56:48 +00:00
Joel Dice
6cef085d7e snapshot 2009-09-26 19:43:44 +00:00
Joel Dice
325f93b4d1 Merge branch 'master' into wip 
Conflicts:

	src/compile.cpp
	src/compiler.cpp
	src/machine.h
	src/x86.cpp
 2009-09-20 15:43:32 -06:00
Joel Dice
953cb69e5e move proxy and annotation code from C++ to Java 
This allows code shrinkers to remove it if it's not used by the application.
 2009-09-19 16:21:15 -06:00
Joel Dice
1a2eb3836c Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-09-18 18:01:57 -06:00
Joel Dice
7aa906d97b support runtime-visible annotations and java.lang.reflect.Proxy 2009-09-18 18:01:54 -06:00
Joel Dice
d0f8889e27 fix GC safety bugs in parseMethodTable and makeArrayClass 2009-09-18 12:20:35 -06:00
Joel Dice
b645c284b5 fix memory leak in debug build 2009-09-17 21:36:52 -06:00
Joel Dice
fcc4ff93e0 remove debug logging 2009-09-17 21:22:47 -06:00
Joel Dice
1dfa421a6c fix argument mixup in Runtime.exit 2009-09-17 18:28:42 -06:00
Joel Dice
bf2b17cfa6 fix misspelled comment 2009-09-04 17:08:45 -06:00
Joel Dice
b0ba70866e fix incorrect line numbers in NPE traces 2009-09-04 15:09:40 -06:00
Joel Dice
e47c149fb1 fix misuse of FindFirstFile 2009-09-03 17:57:32 -06:00
Joel Dice
6519047342 fix bootimage build 2009-09-03 09:06:04 -06:00
Joel Dice
84ac2e417d follow reference pointer before using in in refrenceTargetUnreachable in case it points to a moved object 2009-09-01 18:32:21 -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
4f794f533e fix handling of reachable, moved weak references in postVisit 2009-09-01 17:23:30 -06:00
Joel Dice
49005f0746 fix name-clash regression in heapdump.cpp 2009-09-01 13:09:53 -06:00
Joel Dice
27f35bf239 fix heapdump build 2009-09-01 12:15:33 -06:00
Joel Dice
73dc058c14 implement StackTraceElement.getFileName properly 2009-08-27 16:28:44 -06:00
Joel Dice
1a0eef7e2d add support for building with MSVC on Windows 2009-08-26 18:26:44 -06:00
Joel Dice
4297fa04b3 run java finalizers in a separate thread to guarantee no application locks are held when doing so 2009-08-24 17:51:31 -06:00
Joel Dice
4536f13ee4 superficial reformatting of previous commit 2009-08-21 09:44:18 -06:00
Joel Dice
637a676fb0 fix MinGW 3.4 build 2009-08-21 09:37:49 -06:00
Joel Dice
a56c1d8765 fix GC-safety bug in resolveSpec 2009-08-20 12:37:03 -06:00
Joel Dice
6196f61938 clear Thread::javaThread before entering zombie state, since clearing it in Thread::dispose is too late - the reference may already be invalid since we don't visit GC roots for zombie threads 2009-08-20 08:49:01 -06:00
Joel Dice
c4b5ecec90 implement Runtime.addShutdownHook and Thread.setDaemon; avoid segfaults due to an application calling e.g. CallStaticBooleanMethod when it really meant CallStaticVoidMethod 2009-08-19 14:27:03 -06:00
Joel Dice
df3baeb83b handle null value properly in SetObjectArrayElement 2009-08-19 07:36:52 -06:00
Joel Dice
0a2e611baa handle case of null thread local in SegFaultHandler::handleSignal 2009-08-18 15:47:08 -06:00
Joel Dice
0eba1eeaf2 leave thread in JoinedState instead of ZombieState in DetachCurrentThread 2009-08-18 15:29:25 -06:00
Joel Dice
01dcb1661b don't resolve all constant pool entries in linkClass - just the field and method specs 2009-08-18 15:27:21 -06:00
Joel Dice
6449c8275a fix process=interpret build 2009-08-18 14:41:21 -06:00
Joel Dice
c4edabdc02 implement ClassLoader.resolveClass and ensure class is linked in e.g. Class.getMethods; minor bugfixes 2009-08-18 14:26:28 -06:00
Joel Dice
dae0842c95 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-08-17 13:10:36 -06:00
Joel Dice
062f6968a1 only emit a crash dump for access violations 2009-08-14 15:58:19 -06:00
Joel Dice
7fcbf9d85c fix reading 2-byte UTF-8 constants 2009-08-14 08:52:31 -06:00
Joel Dice
3facd3f735 treat SoftReferences as WeakReferences; do vtable or interface table lookups as necessary in MyProcessor::invoke; various bugfixes 2009-08-13 09:17:05 -06:00
Joel Dice
b3a5823536 set JNIEnvVTable::NewWeakGlobalRef to NewGlobalRef since we don't yet have a weak version 2009-08-13 09:07:05 -06:00
Joel Dice
99e5e65bd8 implement sun.misc.Unsafe methods; set gnu.cpu.endian property 2009-08-13 09:05:37 -06:00
Joel Dice
42622d0d25 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-08-12 19:41:05 -06:00
Joel Dice
bf48f1e297 set java.version property in Avian_gnu_classpath_VMSystemProperties_preInit; add empty Avian_java_lang_VMClassLoader_resolveClass implementation 2009-08-12 19:37:29 -06:00
Joel Dice
61cb8b3deb handle zero-length lookup tables in lookupswitch 2009-08-12 19:32:12 -06:00
Joel Dice
bc884b4669 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-08-11 18:50:04 -06:00
Joel Dice
22ae42b712 look for a native method implementation using the fast calling convention (Avian_*) before one using the standard convention (Java_*) to avoid false positives late in the search path 2009-08-11 18:49:58 -06:00
Josh warner
78ea4d20e3 added loneMatch to improve register allocation 2009-08-11 13:46:51 -06:00
Josh warner
f29199a285 fixed several operand type errors that appeared on 64-bit platforms 2009-08-11 13:30:31 -06:00
Josh warner
711680a183 fixed powerpc compile errors 2009-08-11 13:29:00 -06:00
Josh warner
cd59222f53 fixed propegation of result sizes 2009-08-11 13:27:25 -06:00
Josh warner
32167168f8 fixed incorrect opSize bug for 64-bit platforms 2009-08-11 13:25:22 -06:00
Joel Dice
535a152e86 Merge branch 'master' of ../avian-old 2009-08-11 12:42:14 -06:00
Joel Dice
935329d7cf fix 32-bit shift case in unsignedShiftRightC 2009-08-11 12:36:25 -06:00
Joel Dice
db58097165 re-enable finalization 2009-08-11 10:04:41 -06:00
Joel Dice
24abc8acfe Merge branch 'master' of ../avian 2009-08-11 09:43:29 -06:00
Joel Dice
83b0a217e0 disable debug trap 2009-08-11 09:40:54 -06:00
Joel Dice
a8b333fdc6 define LD and LX unconditionally for __x86_64__ since they should be the same for Windows and POSIX 2009-08-11 09:31:00 -06:00
Joel Dice
8ac06d8a47 initialize classloader map if necessary in Avian_java_lang_ClassLoader_defineClass 2009-08-11 09:25:35 -06:00
Joel Dice
336e822ba9 remove debug logging 2009-08-11 09:23:38 -06:00
Joel Dice
b1014b24f9 specify java.specification.version in Avian_gnu_classpath_VMSystemProperties_preInit 2009-08-11 09:21:26 -06:00
Joel Dice
fb5b0570c3 replace slashes with dots in class name before passing it to ClassLoader.loadClass 2009-08-11 09:20:49 -06:00
Joel Dice
28b5c46a0b fix GC safety bug in makeNewGeneral 2009-08-10 17:35:44 -06:00
Josh warner
af4d82ef7e Merge branch 'master' of git://oss.readytalk.com/avian 2009-08-10 13:42:57 -06:00
Josh warner
9910e310cb fixed register reserve logic in pickTarget 2009-08-10 13:42:37 -06:00
Josh warner
1d3ef1fc43 Merge branch 'master' of git://oss.readytalk.com/avian, fixed problems that occured in broader testing 
Conflicts:
	src/compile.cpp
	src/compiler.cpp
	src/powerpc.cpp
	src/x86.S
	src/x86.cpp
 2009-08-10 13:20:23 -06:00
Joel Dice
001000364d add classloader parameter to functions which may directly or indirectly load classes; include methods inherited from interfaces (but not explicitly declared) in method tables and virtual tables of abstract classes 2009-08-10 07:56:16 -06:00
Joel Dice
54bb64cfb2 freeze sites for dead values in resolveOriginalSites 
Previously, we simply removed the element from the sites array, but
this led to problems when the junction sites are shared among multiple
junctions such that the value at a given index is live at one junction
and dead at another.
 2009-08-10 07:51:19 -06:00
Joel Dice
1a2deff97d Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-08-09 14:43:53 -06:00
Joel Dice
2f864ebea5 fix LLD definition for MinGW 4.4 2009-08-07 16:28:47 -06:00
Joel Dice
2da6980eb5 print intptr_t's as pointers in compareIpToMethodBounds to avoid printf compatibility issues 2009-08-07 16:27:24 -06:00
Joel Dice
012d548bbb fix sign extension from int to long on x86_64 2009-08-07 14:48:30 -06:00
jet
1ffe46a545 added ARM interpreted mode supported 2009-08-06 11:52:36 -06:00
Josh warner
f8bbc609e8 corrected debug messages 2009-08-06 10:32:00 -06:00
Josh warner
a2e639a2d2 added floating point support, split plan function 2009-08-06 10:26:22 -06:00
Josh warner
61bc729974 added floating point support, split plan method 2009-08-06 10:17:48 -06:00
Josh warner
53c0656ee7 added floating point support, split plan method 2009-08-06 10:14:31 -06:00
Josh warner
7483fa154d added floating point support, instrinsics support 2009-08-06 10:01:57 -06:00
Josh warner
c3a389429e split source function, update interface for floating point / instrinsic support 2009-08-06 08:54:23 -06:00
Josh warner
c042354ea0 added detectFeature function, used to detect sse in x86.cpp 2009-08-06 08:49:26 -06:00
Josh warner
5cc605b56d added floating point support. 2009-08-06 08:48:15 -06:00
Josh warner
c7a1a7af77 added floating point support, split plan function. 2009-08-06 08:44:15 -06:00
Joel Dice
0c36b7b3b6 change popDouble return type to double 2009-08-05 15:00:27 -06:00
Joel Dice
63fa0668ff avoid poor performance due to deeply-nested branches in MultiRead::intersect 2009-08-04 18:28:34 -06:00
Joel Dice
e9ee4a618c implement Avian_java_lang_VMClassLoader_defineClass 2009-08-04 18:27:04 -06:00
Joel Dice
d5f4811b43 check for exception after calling resolveClass in parseInterfaceTable 2009-08-04 08:50:04 -06:00
Joel Dice
f8bf83bfec fix recent regression in findInHierarchy 2009-08-04 08:42:16 -06:00
Joel Dice
aa6e3048b3 set os.arch property in Avian_gnu_classpath_VMSystemProperties_preInit 2009-08-03 16:18:41 -06:00
Joel Dice
9f2abd5d8a fix out-of-date JNI method implementations to reflect newer static field table layout 2009-08-03 16:18:16 -06:00
Joel Dice
cb563f76e1 check superinterfaces when looking up methods and fields 2009-08-03 16:16:41 -06:00
Joel Dice
4ae3a1267a remove unused method 2009-08-03 16:16:01 -06:00
Joel Dice
c3a8ca505c avoid function pointer cast warning from GCC 3.4 2009-08-03 10:56:43 -06:00
Joel Dice
ad0592df6f print class name properly when throwing NoSuchMethodError 2009-07-29 10:32:16 -06:00
Joel Dice
7060a5d4f0 clear Machine::byteArrayMap before generating boot image since it will not be used when the image is loaded 2009-07-28 17:22:07 -06:00
Joel Dice
1b8777aa6b free correct object in Context::dispose 2009-07-28 17:20:23 -06:00
Joel Dice
7b183e8f4e don't run Java finalizers when exiting the VM 2009-07-28 16:58:01 -06:00
Joel Dice
14e73560bb fix order of operations in vmJump 2009-07-27 18:09:25 -06:00
Joel Dice
ad66ae2691 disable debug logging 2009-07-27 18:09:12 -06:00
Joel Dice
0447d9bed3 use __MINGW32__ instead of __WINDOWS__ in x86.cpp and assume Linux if it's not defined 2009-07-27 07:49:54 -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
f869e5be21 Merge branch 'master' into gnu 
Conflicts:

	classpath/java/util/TreeSet.java
 2009-07-25 18:38:57 -06:00
Joel Dice
d3a249a3fa Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-07-25 18:36:27 -06:00
Joel Dice
08e9a99cb5 don't abort if pthread_kill fails in MySystem::visit 2009-07-24 19:03:33 -06:00
Joel Dice
cc3289d88a call pthread_kill unconditionally in Thread::interrupt() to ensure system calls such as epoll_wait are interrupted 2009-07-23 16:17:52 -06:00
Joel Dice
77f1bddce2 Revert "add avian.commit system property" 
This reverts commit ed5be83467.
 2009-07-22 10:45:38 -06:00
Joel Dice
ed5be83467 add avian.commit system property 2009-07-22 10:38:32 -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
afdab27e02 backport GC safety fixes from gnu branch 2009-07-20 14:32:25 -06:00
Joel Dice
514d0bf7e5 fix deadlocks and other misbehaviors in class initialization code 2009-07-20 14:12:38 -06:00
Joel Dice
9975a556fa implement VMRuntime.exit 2009-07-20 14:11:41 -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
d12b441aa1 restore state from subroutine after jsr to avoid later confusion determining basic block boundaries 2009-07-20 08:26:01 -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
Joel Dice
5f6f8039e6 various bugfixes in subroutine stack mapping code 2009-07-13 17:49:15 -06:00
Joel Dice
e72ff8db0b Merge branch 'master' into gnu 
Conflicts:

	src/compile.cpp
 2009-07-11 12:11:59 -06:00
Joel Dice
ab5ba9c954 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-07-10 09:57:29 -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
22852dcffa fix GC safety bug when walking stack 2009-07-10 08:33:38 -06:00
Joel Dice
c22b4b4e79 various subroutine handling bugfixes 2009-07-08 08:18:40 -06:00
Joel Dice
dae7b68d5c avoid indexing past the end of the array in makeSimpleFrameMapTable 2009-06-30 17:35:28 -06:00
Joel Dice
562e1e10a8 fix regression in MyCompiler::startLogicalIp 2009-06-30 17:33:54 -06:00
Joel Dice
b308354a3a handle subroutines properly when generating frame maps (initial sketch) 2009-06-26 15:36:04 -06:00
Eric Scharff
f4347dee70 Implement dummy JNI GetVersion 2009-06-22 16:25:13 -06:00
Joel Dice
7ed14948b9 re-initialize frame maps for exception handlers on every iteration of the frame map calculation loop 
This fixes incorrect frame map calcuation which may lead to crashes
during garbage collection from an exception handler.
 2009-06-16 13:41:31 -06:00
Joel Dice
a21f951e29 consider an instruction reachable if it has no predecessors (i.e. it's the first instruction 2009-06-12 09:45:29 -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
e1c7504eda attempt to flush the compile log (if any) before crashing in SegFaultHandler::handle 2009-06-11 17:14:54 -06:00
Joel Dice
525318dabb fix GC safety bug in builtin.cpp 2009-06-11 17:13:25 -06:00
Joel Dice
1d58541c87 generate full memory dump on unhandled exception in windows.cpp 2009-06-11 13:41:13 -06:00
Josh warner
f773c9e610 fixed xul deadlock bug on linux 2009-06-11 09:52:13 -06:00
Josh warner
6bca8fcefc added support for windows-x86_64 2009-06-11 09:48:27 -06:00
Josh warner
16fee943e6 added debugging method 'vmAddressFromLine' 2009-06-11 09:45:35 -06:00
Josh warner
9681a8a1ff added debugging method 'vmAddressFromLine' 2009-06-11 09:44:37 -06:00
Josh warner
862c37f9ad added support for windows-x86_64, changed exception handling to use vectored exception handling on 64 bit windows 2009-06-11 09:43:04 -06:00
Josh warner
73fa0e0b0d added support for windows-x86_64 2009-06-11 09:42:07 -06:00
Josh warner
53da167116 refactored code, added support for upper 8 registers on x86-64 and windows-x86_64 2009-06-11 09:40:50 -06:00
Josh warner
ad33a7800f changed dynamicCall definition for 64 bit windows 2009-06-11 09:39:46 -06:00
Josh warner
788e34936c fixed 64-bit windows printf formatters 2009-06-11 09:38:20 -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
20ea82ec2e various tweaks for Classpath compatibility 2009-06-06 20:32:44 -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
9cf0a42210 respect string offset in stringCharAt 2009-06-06 16:36:07 -06:00
Joel Dice
ac34bc072c remove obsolete todo comments 2009-06-06 14:58:06 -06:00
Joel Dice
6efeee49f8 include native Classpath code in libavian.a and the avian executable 2009-06-06 14:18:33 -06:00
Joel Dice
0857f53651 more progress on GNU Classpath compatibility 2009-06-04 17:21:42 -06:00
Joel Dice
4a87d82d8e fix GC safety bug in MyProcessor::initVtable 2009-06-04 17:20:55 -06:00
Joel Dice
db09adc0d4 allow copies between object arrays of different types in System.arraycopy 2009-06-04 17:19:48 -06:00
Joel Dice
98be5c509e more progress towards GNU Classpath compatibility 2009-06-03 16:17:55 -06:00
Joel Dice
0f6dbe35a7 add build option for using GNU Classpath 2009-06-02 18:55:49 -06:00
Joel Dice
ba5105c374 throw NoSuchMethodError in resolveMethod if method not found 2009-06-02 18:55:12 -06:00
Joel Dice
a4d4db8eb4 fix cygwin/msys bootimage build 2009-06-01 12:12:29 -06:00
Joel Dice
11e61543a3 fix bootimage build 2009-05-31 21:16:58 -06:00
Joel Dice
049f96bd1c Merge branch 'master' into fun 2009-05-31 17:25:34 -06:00
Joel Dice
c434f211e2 fix return type for Avian_java_lang_Object_hashCode 2009-05-31 17:19:18 -06:00
Joel Dice
ace985b390 fix native method lookup for fast calling convention on Windows 2009-05-31 14:41:07 -06:00
Joel Dice
b1d92fc6c2 fix compilation of synchronized methods which return values 2009-05-31 14:15:45 -06:00
Joel Dice
02fba10614 set DebugCompile to false 2009-05-28 19:56:15 -06:00
Joel Dice
f30e31e5f6 compile-x86.S bugfixes and cleanups 2009-05-28 19:54:32 -06:00
Joel Dice
14613193fa include return address size in frameSize passed to vmInvoke; fix printf warnings 2009-05-28 19:50:44 -06:00
Joel Dice
2478d4fc7f conditionally include continuation code in compile-x86.S 2009-05-28 19:13:15 -06:00
Joel Dice
b4dea1f71c fix printf warnings in compiler.cpp 2009-05-28 19:12:26 -06:00
Joel Dice
d99f8df6e6 several bugfixes for powerpc continuations 2009-05-28 18:56:05 -06:00
Joel Dice
ec60b844d4 fix powerpc tail calls 2009-05-27 18:15:39 -06:00
Joel Dice
49a2c1846d powerpc bugfixes 2009-05-26 19:30:11 -06:00
Joel Dice
2608a2ee43 progress towards powerpc continuation and tail call support 2009-05-26 19:02:39 -06:00
Joel Dice
31eb75a736 support tail calls and continuations as build options 2009-05-25 23:27:10 -06:00
Joel Dice
deefc47b1a correct comment in vmInvoke 2009-05-25 21:39:17 -06:00
Joel Dice
31d9700c9b move SystemClassLoader and Runtime.dumpHeap to avian package 2009-05-25 21:36:29 -06:00
Joel Dice
9682d63b84 fix marshalling of 64-bit arguments in interpret.cpp 2009-05-25 21:20:29 -06:00
Joel Dice
43f5c3f382 fix process=interpret build 2009-05-25 21:05:49 -06:00
Joel Dice
758325ae27 convert methods in builtin.cpp to use fast native calling convention 2009-05-25 20:02:25 -06:00
Joel Dice
ea5fea4802 fix printf format for 64-bit build 2009-05-25 14:59:36 -06:00
Joel Dice
9837528a3e set Thread::continuation before calling jumpAndInvoke in Rewind case of callContinuation 2009-05-24 22:49:39 -06:00
Joel Dice
0a4e77ffa7 fix thinko in callContinuation 2009-05-24 22:36:16 -06:00
Joel Dice
92aea95b36 continuation bugfixes 2009-05-24 22:27:50 -06:00
Joel Dice
c2bd828cc1 call the right continuation in callContinuation 2009-05-24 18:58:45 -06:00
Joel Dice
dc523fe6eb load eax and edx in 32-bit vmJump 2009-05-24 18:57:59 -06:00
Joel Dice
af59c85deb various bugfixes 2009-05-24 18:22:36 -06:00
Joel Dice
e80401ed10 vmJumpAndInvoke bugfixes 2009-05-24 11:18:17 -06:00
Joel Dice
9dbea21ec4 add continuation support to 32-bit section of compile-x86.S 2009-05-24 00:32:49 -06:00
Joel Dice
18ec68c7b7 fix word order when pushing 64-bit values as arguments to helper thunks in appendCombine 2009-05-24 00:31:53 -06:00
Joel Dice
364f31b785 finish initial sketch of dynamicWind implementation 2009-05-23 19:49:14 -06:00
Joel Dice
4305fdc7f3 begin dynamicWind implementation 2009-05-23 16:15:06 -06:00
Joel Dice
79558e7e34 fix GCC 4.4 warnings 2009-05-22 18:21:11 -06:00
Joel Dice
e165d5f3fd avoid uninitialized variable warnings in MyProcessor::callWithCurrentContinuation 2009-05-19 18:28:43 -06:00
Joel Dice
ecfecf2006 translate local indexes before passing to Frame.stored{Int,Long,Object} 2009-05-18 09:16:17 -06:00
Joel Dice
398dec58bb GC bugfixes 2009-05-17 17:43:48 -06:00
Joel Dice
195d95d809 continuation bugfixes 2009-05-16 18:39:08 -06:00
Joel Dice
8cb59c9d4c various bugfixes to get Continuations test working 2009-05-16 02:03:03 -06:00
Joel Dice
57cec2d068 various bugfixes 2009-05-14 20:08:01 -06:00
Joel Dice
3d1ef68001 various bugfixes 2009-05-12 12:16:55 -06:00
Joel Dice
66c4867f18 more work on continuation support 2009-05-05 18:29:05 -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
90dcf084a2 protect object from GC in compileVirtualMethod2; condense frame GC root maps to minimum size needed 2009-04-27 14:46:43 +00:00
Joel Dice
fd99691b00 fix CallEvent::popIndex calculation 2009-04-26 21:59:22 -06:00
Joel Dice
50529969f9 fix code to visit GC roots on stack to be compatible with tail calls; avoid generating unreachable jumps 2009-04-26 19:53:42 -06:00
Joel Dice
299699f1ff fix stack unwinding for new calling convention (2nd try) 2009-04-26 16:06:15 -06:00
Joel Dice
03653d2dd8 fix stack unwinding and GC root scan for new calling convention 2009-04-26 15:55:35 -06:00
Joel Dice
f80fb9b536 refine code for picking target sites to avoid unecessary moves 2009-04-26 12:19:16 -06:00
Joel Dice
64b529c915 avoid generating unreachable code after tail calls 2009-04-25 20:54:36 -06:00
Joel Dice
bf8fdb6316 visit MyProcessor::virtualThunks during GC 2009-04-25 20:24:04 -06:00
Joel Dice
630fde86f7 freeze registers in CallEvent::compile to ensure they are not used as temporaries by the assmebler 2009-04-25 20:07:47 -06:00
Joel Dice
0245a94ab8 generate code in ReturnEvent if and only if the event is preceded by at least one non-tail-call 2009-04-25 19:51:33 -06:00
Joel Dice
89221bfcfa fix handling of virtual calls to native methods 2009-04-25 17:52:08 -06:00
Joel Dice
141862470b fix stack pointer adjustment in invokeNative2; pad frame size using Architecture::frameFootprint in MyProcessor::invoke to conform to new calling convention 2009-04-25 17:33:42 -06:00
Joel Dice
5354e36530 fix unsafe stack pointer adjustment in vmInvoke 2009-04-25 17:31:24 -06:00
Joel Dice
1ed7c0d94c adapt native method call code to new calling convention 2009-04-25 11:49:56 -06:00
Joel Dice
de84afe2fe adjust stack if necessary after non-tail-call in case where callee pops arguments 2009-04-25 11:47:41 -06:00
Joel Dice
3113ae74eb various bugfixes 2009-04-22 01:39:25 +00:00
Joel Dice
717f359666 implement "callee pops arguments" calling convention and refactor tail call code accordingly 2009-04-19 16:36:11 -06:00
Joel Dice
dba72409aa move use of SingleRead::successor; fix build errors 
We now use SingleRead::successor in pickTarget, where we use it to
determine the prefered target site for the successor without requiring
the target to conform to that preference.  The previous code made the
preference a hard requirement, which is not desirable or even possible
in general.
 2009-04-07 18:55:43 -06:00
Joel Dice
35d1c6e068 add SingleRead::successor; fix build errors 
The SingleRead::successor field is used (when non-null) to further
constrain the SiteMask in SingleRead::intersect based on reads of
successor values (as in the cases of moves and condensed-addressing
combine and translate instructions).
 2009-04-06 18:34:12 -06:00
Joel Dice
fea92ed995 more work on tail recursion 
We now create a unique thunk for each vtable position so as to avoid
relying on using the return address to determine what method is to be
compiled and invoked, since we will not have the correct return address
in the case of a tail call.  This required refactoring how executable
memory is allocated in order to keep AOT compilation working.  Also, we
must always use the same register to hold the class pointer when
compiling virtual calls, and ensure that the pointer stays there until
the call instruction is executed so we know where to find it in the
thunk.
 2009-04-05 15:42:10 -06:00
Joel Dice
5e740170f2 initial sketch of tail call optimization (non-virtual calls only, so far) 2009-03-31 14:15:08 -06:00
Joel Dice
b871f430d0 avoid reading below the stack pointer in vmInvoke, since it upsets valgrind 2009-03-19 08:44:08 -06:00
Joel Dice
538e23c642 fix order-of-operations bugs in compile.cpp which led to creation of incorrect stack maps 2009-03-18 16:24:13 -06:00
Joel Dice
c9400316fd try harder to find a suitable stack frame site in pickTarget when there are no free registers left 2009-03-16 20:03:59 -06:00
Joel Dice
f5c79355f2 set StealRegisterReserveCount to 2 to avoid running out of registers in when shuffling values around on the stack 2009-03-16 18:00:51 -06:00
Joel Dice
d1018bf078 update copyright years 2009-03-15 12:02:36 -06:00
Joel Dice
0ce644cca2 put new thread into active state in AttachCurrentThread 2009-03-14 18:07:38 -06:00
Joel Dice
073b829c79 avoid running out of eligable source registers for writing a single byte to memory on x86 2009-03-14 16:47:26 -06:00
Joel Dice
12640219e6 handle b == dst case in andC 2009-03-14 14:34:44 -06:00
Joel Dice
8d9409112c reuse source site as destination site if appropriate in getTarget 2009-03-14 14:17:32 -06:00
Joel Dice
54b691f4de handle b == t case in multiplyR and remainderR 2009-03-14 14:14:49 -06:00
Joel Dice
ee2d105f6c freeze move operand sites prior to calling the assembler so the assembler won't steal them 2009-03-13 20:55:41 -06:00
J. Treadwell
21fa23d84b fixed multiplyC bug (all multiplies now delegated to multiplyR) 2009-03-13 18:37:40 -06:00
Joel Dice
4c27755a53 fix endianness issue storing and loading longs 2009-03-11 21:07:30 -06:00
Joel Dice
49cd2dd9bf fix powerpc bootimage build (second try) 2009-03-10 19:08:16 -06:00
Joel Dice
6c271ac994 fix powerpc bootimage build 2009-03-09 18:52:09 -06:00
Joel Dice
c11203b401 pass srcSelectSize instead of srcSize to Architecture::plan in appendMove 2009-03-09 12:31:41 -06:00
Joel Dice
8ac6fb9d75 fix x86_64 build 2009-03-09 15:29:37 +00:00
Joel Dice
89a2739165 sync instruction cache after compiling a method 2009-03-09 08:26:23 -06:00
Joel Dice
4347228585 fix thinko in addC for zero constant case 2009-03-08 20:55:54 -06:00
Joel Dice
68ed5e6cb5 fix addC for case where bit 15 of constant is set 2009-03-08 20:09:06 -06:00
Joel Dice
8b0f7d790f don't assume sizeof(bool) == 8 2009-03-07 18:23:28 -07:00
Joel Dice
e1395f300a fix warnings for optimized build 2009-03-07 17:52:18 -07:00
Joel Dice
14c6deb710 do two passes in MyCompiler::initLocalsFromLogicalIp in order to properly link multiword values together 2009-03-07 17:39:55 -07:00
Joel Dice
661b49ea92 Merge branch 'master' into powerpc 2009-03-07 16:41:17 -07:00
Joel Dice
abe6ada0c2 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2009-03-07 16:40:56 -07:00
Joel Dice
ea4764c924 Merge branch 'master' into powerpc 2009-03-07 16:40:23 -07:00
Joel Dice
7add34944b protect source site from being used as a temporary for move operations 2009-03-07 16:32:05 -07:00
Joel Dice
376941ab35 fix single-precision float marshalling in dynamicCall 2009-03-07 14:32:08 -07:00
Joel Dice
0aaee96479 allocate executable memory area all at once to ensure it is contiguous, since immediate relative jumps on PowerPC can only cross 2^26 bytes of memory 2009-03-07 12:03:27 -07:00
Joel Dice
fd7bef7db3 only accept sites conforming to specified SiteMask in getTarget 2009-03-06 17:37:54 -07:00
Joel Dice
9b9ae62541 defer to moveCR when adding or subtracting zero 2009-03-06 17:11:51 -07:00
Joel Dice
33ba8d084d avoid unecessary subtraction in tableswitch 2009-03-06 17:11:14 -07:00
Joel Dice
b5f76d96dc handle exception case in makeCodeImage 2009-03-06 17:10:31 -07:00
Joel Dice
e61d05f00b undo temporary big endian offset correction before leaving maybeMove 2009-03-06 12:14:37 -07:00
Joel Dice
7388da6282 fix endianness issues when loading values smaller than BytesPerWord from the stack 2009-03-06 10:56:11 -07:00
Joel Dice
ca0d4b44c1 defer moveZCR to moveCR 2009-03-06 10:54:43 -07:00
Joel Dice
762df17aa7 use Architecture::plan in BranchEvent ctor to determine acceptable types for address 2009-03-05 20:27:59 -07:00
Joel Dice
a0e503ad0a optimize moveRR and fix andC 2009-03-05 20:21:15 -07:00
Joel Dice
75e28e81c9 fix operand ordering in remainderR 2009-03-05 19:35:49 -07:00
Joel Dice
ec610a5521 handle shift counts greater than 31 properly 2009-03-05 19:05:39 -07:00
Joel Dice
16e81bcc07 fix orC 2009-03-05 18:33:00 -07:00
Joel Dice
7d48547f0e fix compareUnsignedCR, which relied on sign extension in cmplwi, which actually does zero extension; fix use of li argument to instruction format I 2009-03-05 18:02:03 -07:00
Joel Dice
3e495b8ca5 use mulhwu and eliminate temporary in 64-bit multiplyRR 2009-03-04 19:50:03 -07:00
Joel Dice
77195713b8 fix xorR regression introduced in last commit 2009-03-04 19:22:47 -07:00
Joel Dice
cca3e72318 fix 64-bit xorC 2009-03-04 19:20:15 -07:00
Joel Dice
acfa1ee2ff fix 64-bit negateRR 2009-03-04 18:59:04 -07:00
Joel Dice
d48e5377fe add missing instruction to multiplyR 2009-03-04 18:43:53 -07:00
Joel Dice
a8da9ecb05 fix use of displacement parameter in instruction format B; use correct opcode in slw instruction 2009-03-04 18:20:54 -07:00
Joel Dice
296c93a04c fix backwards logic in longCompare; correct unsupported use of JumpIfLessOrEqualC in shiftRightR; add multiply, divide, and remainder operations to table 2009-03-04 17:54:47 -07:00
Joel Dice
8cc1f6def8 remove dead code from MyCompiler::call 2009-03-04 17:52:55 -07:00
JET
dbcd42e70c added 64-bit shifts and mul/div 2009-03-04 10:11:42 -07:00
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
8410e1d683 ensure reads and writes of volatile 64-bit fields are atomic 2009-03-03 18:02:11 -07:00
Joel Dice
2ca8132d97 implement support for volatile fields 2009-03-02 20:18:15 -07:00
Joel Dice
8c9d625f8f add memory barriers where appropriate in compile.cpp 2009-03-02 18:40:06 -07:00
Joel Dice
5f0b40e531 restore call to Client::releaseTemporary in moveCM 2009-03-01 23:07:28 +00:00
Joel Dice
6eacf7b804 fix bounds checks in MyCompiler::initLocalsFromLogicalIp 2009-03-01 22:47:07 +00:00
Joel Dice
97961ecdde pick a temporary register which is valid as both a destination and a source for the required moves in maybeMove 2009-03-01 15:41:03 -07:00
Joel Dice
1192ef939e fix stack offset calculation for multianewarray on x86 2009-03-01 15:39:52 -07:00
Joel Dice
7a2bf9b855 fix x86.cpp build 2009-03-01 15:14:51 -07:00
Joel Dice
28d4409b0a implement negateRR 2009-03-01 12:57:07 -07:00
Joel Dice
36196910ed implement xorR and xorC 2009-03-01 12:40:49 -07:00
Joel Dice
97e698d806 fix MyCompiler::peak for big-endian architectures 2009-03-01 12:36:30 -07:00
Joel Dice
696282631a fix endianness issues with 64-bit locals 2009-03-01 12:28:17 -07:00
Joel Dice
412348d938 fix stack offset calulation for multianewarray 2009-03-01 10:49:37 -07:00
Joel Dice
117c89b9ee change == to <= in moveCR2 since we only need to ensure dstSize is no more than the word size 2009-02-28 19:10:31 -07:00
Joel Dice
93ebb571b3 only add site to result if result is live in CombineEvent::compile and TranslateEvent::compile 2009-02-28 19:08:14 -07:00
Joel Dice
5adcfa3341 fix 32-bit indexed loads 2009-02-28 17:31:09 -07:00
Joel Dice
750f4d51da fix extsb/extsh operand order in moveRR 2009-02-28 17:17:12 -07:00
Joel Dice
f01a78699f fix opcode for lbzx 2009-02-28 16:58:54 -07:00
Joel Dice
b0422b32e6 implement orR and orC; add shift operations to ternary operation table 2009-02-28 16:28:10 -07:00
Joel Dice
d6bd2e7308 make Compiler::store take both a source size and a destination size to avoid endianness issues; change order of Compiler::load parameters to match 2009-02-28 16:17:24 -07:00
Joel Dice
10c75f4783 add longCompareC to ternary operation table 2009-02-28 15:04:04 -07:00
Joel Dice
5a8ffcd79b implement moveZRR and moveZMR 2009-02-28 15:00:12 -07:00
Joel Dice
60c4bede39 fix undefined-order-of-operations bug in Frame::dupped 2009-02-28 14:41:05 -07:00
Joel Dice
3e6c30a4b5 always return an 8-byte value (or void) from native functions called from Java 
This is important on the 32-bit OS X PowerPC ABI, since the location
of the low 32-bits of a return value change depending on whether the
entire value is 64-bits or not.
 2009-02-28 14:20:43 -07:00
Joel Dice
c5dd97ffea ensure that we release temporaries back to the compiler in powerpc.cpp; allow the first operand of a comparison to be a constant 2009-02-28 13:41:37 -07:00
Joel Dice
a2d2564d83 restore changes clobbered by commit 5a08062 2009-02-28 12:58:34 -07:00
Joel Dice
1249b11080 fix build breakage 2009-02-28 12:47:47 -07:00
Joel Dice
46a6744050 Merge commit 'origin/powerpc' into powerpc 2009-02-28 12:44:31 -07:00
Joel Dice
f8d7bea7e8 implement various compare and branch instructions 2009-02-28 12:36:02 -07:00
Joel Dice
f22ce3f996 fix parameter offset calculation in invokeNative2 2009-02-28 12:33:26 -07:00
JET
5a08062190 prelim 64-bit mult and shift support 2009-02-27 16:54:20 -07:00
Joel Dice
8ecd6a0394 fix and optimize andC 2009-02-26 18:56:57 -07:00
Joel Dice
4999c08e32 fix stack offset calculation for powerpc 
This may break x86, in which case we'll iterate until they both work.
 2009-02-26 18:54:25 -07:00
Joel Dice
73aa499371 clean up offsetToFrameIndex code 2009-02-26 18:53:35 -07:00
Joel Dice
d7d3dd5055 various bugfixes, especially concerning frame allocation and offset calculation 2009-02-25 20:49:42 -07:00
Joel Dice
6957492c7a ignore base argument in powerpc version of vmJump and move thread argument into correct register 2009-02-25 20:47:38 -07:00
Joel Dice
b539d7b1e0 Merge commit 'origin/powerpc' into powerpc 
Conflicts:
	src/powerpc.cpp
 2009-02-25 18:31:21 -07:00
Joel Dice
08af5deb36 implement andC and moveAR; fix MyArchitecture::nextFrame 2009-02-25 18:16:38 -07:00
Joel Dice
09c96a3063 simplify longCompare in x86.cpp such that the move function pointer parameter is eliminated and moveCR is called directly 2009-02-25 18:13:18 -07:00
Joel Dice
2554673dda call c->arch->plan in CallEvent ctor to ensure the address operand is placed into the proper operand type for the call instruction 2009-02-25 18:11:41 -07:00
J. Treadwell
c148369d57 added multiply and divide instructions and intermediates 2009-02-25 09:37:44 -07:00
Joel Dice
0832c740fc implement a few conditional and branch instructions 2009-02-24 18:29:04 -07:00
Joel Dice
571615a79f fix stack space calculation in compile-powerpc.S 2009-02-24 18:28:05 -07:00
Joel Dice
299f8542b7 rename fooCRR and fooRRR to fooC and fooR, respectively; add entries to ternary operation table in populateTables 2009-02-24 09:13:11 -07:00
Joel Dice
b292cbb7f4 mask displacement in instruction format D; fix MyArchitecture::frameIp to look for return address at an 8-byte offset from the stack pointer 2009-02-24 08:04:55 -07:00
Joel Dice
eef5047a52 various bugfixes in powerpc.cpp 2009-02-23 21:25:15 -07:00
J. Treadwell
ee90d7bd2c merged ppc changes 2009-02-23 20:57:25 -07:00
JET
2d09f57cbd added instructions 2009-02-23 19:16:42 -07:00
Joel Dice
da8520754d progress towards compiling and running simple methods on powerpc 2009-02-23 19:11:32 -07:00
Joel Dice
79a1d0451f fix GCC 4.2 -Os uninitialized variable warning in windows.cpp 2009-02-22 17:44:11 -07:00
Joel Dice
8add9db0b2 fix GCC 4.x aliasing warnings in windows.cpp 2009-02-22 17:04:58 -07:00
Joel Dice
9a9b2c611a sketch of new powerpc.cpp implementation 2009-02-21 12:30:25 -07:00
Joel Dice
a9e85e5de8 fix compare instruction syntax in compile-powerpc.S 2009-02-18 17:46:07 -07:00
Joel Dice
324caaf98b add size parameter to Assembler::returnLow since the register used depends on the return value size on PowerPC 2009-02-17 18:19:31 -07:00
Joel Dice
c88e3fa230 ensure stack alignment in compile-x86.S and update vmInvoke to accept frame size parameter 2009-02-16 19:49:28 -07:00
Joel Dice
17b4c20435 fix windows build 2009-02-16 19:48:29 -07:00
Joel Dice
ba4e2a6582 rename compile.S to compile-x86.S and add compile-powerpc.S 2009-02-16 08:21:12 -07:00
Joel Dice
773e229112 fix powerpc native call bugs 2009-02-15 14:24:20 -07:00
Joel Dice
bec13838c1 Merge branch 'powerpc' of oss.readytalk.com:/var/local/git/avian 2009-02-15 12:34:01 -07:00
Joel Dice
cea5a9315d fix block delimiting code in compile.cpp to avoid cycles and nested blocks 2009-02-15 11:11:00 -07:00
Joel Dice
7803663fc9 fix block delimiting code in compiler.cpp to minimize the number of blocks needed 
This exposed bugs in x86.cpp concerning alignment padding which are now
fixed.
 2009-02-14 17:52:44 -07:00
Joel Dice
4b2d74f656 fix merge conflict bug preventing the bootimage code from seeing, marking, and fixing jsr addresses 2009-02-14 14:23:23 -07:00
Joel Dice
f58f7b3bdf fix bugs pertaining to tracking reads and and value sites across subroutines (jsr and ret instructions) 2009-02-14 13:26:39 -07:00
Joel Dice
93142bb952 support filtering based on class name, method name, and method spec in 
bootimage.cpp

This is useful for debugging the compiler, since it allows you to
compile one method in particular if that's where a bug manifests itself.
 2009-02-14 13:23:31 -07:00
U-JOELDICEXPVM\Joel Dice
ec5c64d472 fix Cygwin build 2009-02-13 17:03:46 -07:00
Joel Dice
e3257134c9 fix merge-related regression affecting bootimage build 2009-02-09 19:00:53 -07:00
Joel Dice
9b0d6854ec fix merge conflicts 2009-02-09 16:22:51 -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
a1fc8a4dac add site to result in MemoryEvent::compile regardless of whether the result is live, since the memory location may be used as the target of a move and we need to keep the reference count of the base and index registers nonzero 2009-02-08 19:08:56 -07:00
Joel Dice
29616c4abc freeze target site when using temporary in maybeMove 2009-02-08 18:58:33 -07:00
Joel Dice
4ca45ffa41 fix two bugs concerning tracking available registers and reserving them when necessary 2009-02-08 16:20:28 -07:00
Joel Dice
0fbe89c147 set Value::high when appropriate in MyCompiler::initLocalsFromLogicalIp 2009-02-08 15:13:49 -07:00
Joel Dice
175ec1ff48 remove debug logging 2009-02-08 13:22:28 -07:00
Joel Dice
5066bfdabf tweak register and frame site allocation code to avoid failure in corner cases 2009-02-08 13:21:35 -07:00
Joel Dice
55d2ee1823 avoid clobbering values in sign-extension case of MoveEvent.compile 2009-02-02 19:13:02 -07:00
Joel Dice
123e22322c turn off debug logging 2009-02-01 16:21:55 -07:00
Joel Dice
2e3fd111d4 fix regressions on x86_64 2009-02-01 16:19:11 -07:00
Joel Dice
8b1801c465 various bugfixes involving multiword values 2009-02-01 16:10:56 -07:00
Joel Dice
11408dc2cd fix popIndex calculation in CallEvent ctor 2009-01-31 12:35:45 -07:00
Joel Dice
8b6319fbc8 assume stack grows towards negative addresses when loading and storing multiword locals 2009-01-31 12:05:06 -07:00
Joel Dice
a11d018dc2 fix assertion in MyCompiler::peek 2009-01-29 18:43:46 -07:00
Joel Dice
8dca14af74 remove obsolete assertion from negateRR 2009-01-29 18:43:18 -07:00
Joel Dice
1c3504b62a fix various stack bugs 2009-01-29 18:36:19 -07:00
Joel Dice
565ece136b begin refactoring compiler.cpp to treat each word of a multiword value seperately 2009-01-25 15:03:38 -07:00
Joel Dice
034444db57 fix a couple of bugs handling multi-word values 2009-01-12 09:26:43 -07:00
Joel Dice
582e975a8a remove temporary debug code 2009-01-11 16:46:36 -07:00
Joel Dice
85ac9b9c71 revert overflow code in sitesToString since we now prune dead buddies from values 2009-01-11 16:46:22 -07:00
Joel Dice
05bd86e2ed use upper 32 bits of mask in pickRegisterTarget when picking register for high word; set Target::Impossible to 5 since 4 is a valid cost 2009-01-11 16:42:41 -07:00
Joel Dice
04bc58fd95 reorder code in MemorySite::release so we can use low->size before it is overwritten 2009-01-11 16:24:25 -07:00
Joel Dice
5a76277b84 remove dead buddies from values so they don't accumulate without bound; when resolving sites, avoid picking those which belong to other values; various bugfixes 2009-01-11 15:53:51 -07:00
Joel Dice
e3976e66d3 avoid using all registers when marshalling sites, since we need at least one register free for memory-to-memory moves; various bugfixes 2009-01-11 11:48:02 -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
8459489212 avoid overflow in sitesToString 2009-01-04 15:58:05 -07:00
Joel Dice
9495d03dc6 explicitly load jump target in tableswitch to avoid retaining stale memory sites 2009-01-04 15:56:47 -07:00
Joel Dice
c56f37197c marshal values at branches to avoid duplication of effort at junctions 2009-01-04 14:52:46 -07:00
Joel Dice
f4689093ee try harder to find an acceptable source site in resolveSourceJunctionSites 2009-01-04 13:35:09 -07:00
Joel Dice
ce1e161f52 allocate larger buffer for sitesToString 2009-01-04 12:38:31 -07:00
Joel Dice
095e6d7bc3 prefer unowned resources in resourceCost 2009-01-04 12:34:38 -07:00
Joel Dice
d76b4121ae fix 64-bit constant case in addCR and subtractCR 2009-01-04 12:32:11 -07:00
Joel Dice
ded2ffe437 more compile.cpp refactoring 2009-01-03 18:17:51 -07:00
Joel Dice
ae24a6c18e continue refactoring compiler.cpp to simplify register and frame resource allocation 2009-01-03 14:34:45 -07:00
Joel Dice
7b546936d6 snapshot 2009-01-02 17:44:47 -07:00
Joel Dice
c678fb30a4 snapshot 2008-12-24 13:35:43 -07:00
Joel Dice
f96ee3ea73 handle p->value->reads == 0 case in visit 2008-12-22 18:25:00 -07:00
Joel Dice
897586aa76 clobber overlapping locals in storeLocal; move fallback code in trySteal to increase its applicability 2008-12-22 17:55:29 -07:00
Joel Dice
ac37941fa5 fix build error in previous commit 2008-12-21 18:14:24 -07:00
Joel Dice
c9bec0ce96 only steal sites recursively when all else fails in trySteal 2008-12-21 18:14:20 -07:00
Joel Dice
c78e76c747 temporarily reacquire source in releaseRegister 
This avoids a SEGV when freezing the register.
 2008-12-21 14:48:26 -07:00
Joel Dice
055ec4dd9f various fixes and cleanups concerning 64-bit values on 32-bit systems 2008-12-21 14:41:56 -07:00
Joel Dice
b23f7374e9 don't steal sites in pickJunctionSite 2008-12-20 17:45:52 -07:00
Joel Dice
b9b7ae4003 avoid clobbering first operand in CombineEvent.compile 2008-12-20 16:05:01 -07:00
Joel Dice
cf4e8e7ec2 various fixes for marshalling values among registers and frame sites 2008-12-20 14:55:45 -07:00
Joel Dice
75b3bf98ab pick only unfrozen frame sites in save 2008-12-20 11:13:58 -07:00
Joel Dice
bd89b8e00a check for null array in HashMapIterator::find 2008-12-18 20:23:08 -07:00
Joel Dice
2622773eb4 support bootimage build on OS X 2008-12-18 19:52:03 -07:00
Joel Dice
e55b59905e Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2008-12-18 16:32:23 -07:00
Joel Dice
5e727c8c5d throw an error if a volatile field is encountered, since we don't yet support them properly 2008-12-18 16:32:18 -07:00
Joel Dice
7ce35b212f fix GCC 4.0.1 uninitialized value warning 2008-12-18 10:10:19 -07:00
Joel Dice
a40ae85588 clear sites from dead value in removeBuddy 2008-12-15 18:21:01 -07:00
Joel Dice
8819d01522 only set Context::forfeitedSite if value is live 2008-12-15 17:42:32 -07:00
Joel Dice
39358e6652 update junction read based on liveness of local value on first visit to junction, not stub read value 2008-12-15 07:35:19 -07:00
Joel Dice
7f4bd51464 don't use trySteal when moving sites between buddies 2008-12-13 13:54:26 -07:00
Joel Dice
4717e94fa3 remove value buddies after setting sites to junction sites, not after populating junction sites 
This mirrors how snapshots are captured and restored for branch events.
Also, switch back to resolving junction sites before capturing fork
snapshots so we capture the true state of each value immediately before
the branch.
 2008-12-13 12:59:02 -07:00
Joel Dice
d50febe088 various control-flow related bugfixes 2008-12-11 18:09:36 -07:00
Joel Dice
8b2a6f85fc remove divideCR and remainderCR 
This forces the compiler to explicitly move the constant operand into
a register, avoiding the possibility that AX or DX might be unavailable
when the assembler needs them.
 2008-12-11 18:08:16 -07:00
Joel Dice
aa7b47eec4 fix merge confict fallout in heapdump.cpp 2008-12-04 14:35:25 -07:00
Joel Dice
7d68c9b0a5 Merge branch 'bootimage' of oss.readytalk.com:/var/local/git/avian 
Conflicts:

	src/heapdump.cpp
 2008-12-04 14:29:17 -07:00
Joel Dice
58a90f2b84 fix regressions for non-bootimage case 2008-12-03 19:09:57 -07:00
Joel Dice
93d4fbc43d fix platform=windows and process=interpret builds 2008-12-03 08:44:07 -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
4098368cb9 fix non-debug build of compile.cpp 2008-12-02 19:39:56 -07:00
Joel Dice
851efc8d10 handle case of unresolved promise in compareCR and compareCM 2008-12-02 19:39:09 -07:00
Joel Dice
bcfdc03631 fix build breakage in heapdump.cpp 2008-12-02 19:38:32 -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
Rich Scott
f13bf44e87 Check return value of fwrite() calls. 
This is to satisfy GCC 4.3.2 (on Ubuntu 8.10), which requires it.
 2008-12-01 16:53:34 -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
b8056d905c fix bugs in allocating and populating method object pools 2008-11-28 18:23:01 -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
d22a9ab270 visit constants in visitRoots so they are included in the final heap image 2008-11-28 11:33:11 -07:00
Joel Dice
02afbd1fa1 handle unresolved constants in moveCM 2008-11-27 21:58:32 -07:00
Joel Dice
6dc181fad5 move allocation zone from makeCodeImage to writeBootImage so it stays in scope until after updateConstants is called 2008-11-27 21:58:04 -07:00
Joel Dice
a8a030140c various bugfixes 2008-11-27 21:44:04 -07:00
Joel Dice
f698c24ea6 delay resolving method call offsets until all methods have been compiled when creating a boot image 2008-11-27 13:59:40 -07:00
Joel Dice
264779ed2a copy site if necessary to avoid chaining to another site in resolveJunctionSite 2008-11-25 19:23:47 -07:00
Joel Dice
f9145528c8 do constant-to-memory movq in one instruction on amd64 when possible 2008-11-25 19:22:21 -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
fdb9c05ac6 avoid uninitialized value warnings from valgrind when DebugFrameMaps is true 2008-11-25 16:01:30 -07:00
Joel Dice
58a9718d82 clean stack sites more aggressively after function calls to avoid GC bugs 2008-11-25 16:00:40 -07:00
Joel Dice
eea2225176 save locals to memory before executing any instruction which might trigger an exception if that instruction lies within an exception handler 2008-11-25 10:34:48 -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
20cf42c5e4 more work on boot image creation 2008-11-23 16:58:01 -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
4392b04fd0 avoid creating unecessary garbage in treeInsertNode and friends 2008-11-22 16:25:35 -07:00
Joel Dice
6162dfafbb increase heap pool size and fixed footprint threshold constants based on performance profiling and experimentation (second try) 2008-11-22 14:48:10 -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
2e2925c321 fix backwards logic in treeMapInsert which prevented correct balancing 2008-11-22 14:14:52 -07:00
Joel Dice
6500f1eff6 initial work to support boot image creation and use 2008-11-21 16:20:35 -07:00
Joel Dice
e98da8440e minor tweak to find function in heapdump.cpp to return 0 where we were returning false (which amounts to the same thing but is less confusing) 2008-11-19 18:09:02 -07:00
Joel Dice
3d9e508e3e fix regression in last commit 2008-11-17 08:44:35 -07:00
Joel Dice
9aee242408 Merge branch 'powerpc' of oss:/var/local/git/avian into powerpc 
Conflicts:

	src/compiler.cpp
 2008-11-17 08:22:07 -07:00
Joel Dice
7ea5a4a64f avoid inifinite recursion in trySteal 2008-11-17 08:20:48 -07:00
Joel Dice
92a8a4d83b clean up subroutine code in wake of merge from master branch 2008-11-15 18:03:43 -07:00
Joel Dice
9b6d4fdeab Merge branch 'master' of oss.readytalk.com:/var/local/git/avian into powerpc 
Conflicts:

	src/compile.cpp
 2008-11-15 17:49:08 -07:00
Joel Dice
dc2700d913 ensure that the saved exception in a finally block is visited during GC when the jsr instruction is used 2008-11-15 17:28:45 -07:00
Joel Dice
fb770d10fb implement jsr/ret support 
The Subroutine test won't pass due to a bug in the stack mapping code
such that objects may be missed during GC.
 2008-11-13 17:59:21 -07:00
Joel Dice
fae0ccfe96 fix unused parameter warnings 2008-11-11 18:09:45 -07:00
Joel Dice
6f5613ebd9 minor code cleanup in MoveEvent::compile 2008-11-11 17:48:21 -07:00
Joel Dice
191bfb6141 fix 4-to-8 byte sign extensions for ia32 and clean up MoveEvent; all tests now pass on ia32 2008-11-11 17:39:26 -07:00
Joel Dice
acfd9689b2 Merge branch 'master' of oss:/var/local/git/avian into powerpc 
Conflicts:

	makefile
	src/assembler.h
	src/compile.cpp
	src/compiler.cpp
	src/compiler.h
	src/finder.cpp
 2008-11-11 12:15:19 -07:00
Joel Dice
e859502811 handle unresolved constants in moveCM 2008-11-11 11:56:43 -07:00
Joel Dice
671fd1c0f9 set popIndex for stack arguments in CallEvent constructor 2008-11-11 11:56:23 -07:00
Joel Dice
0bef625500 fix thinko in logCompile 2008-11-11 09:17:11 -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
2304a656cf in releaseRegister, if the register is not the exclusive site of a value, steal it 2008-11-10 21:25:36 -07:00
Joel Dice
54cda3ca61 specify register contraints for Negate instruction in MyArchitecture::plan 2008-11-10 20:23:33 -07:00
Joel Dice
96a7c71c30 fix loading 8-byte values on 32-bit systems 2008-11-10 19:12:36 -07:00
Joel Dice
81d532c4f0 handle overlap cases in moveRR 2008-11-10 19:11:32 -07:00
Joel Dice
5fc9ad058b more bugfixes; all tests pass on amd64 2008-11-10 17:07:44 -07:00
Joel Dice
00d8142de9 various bugfixes; all but one test are passing on amd64 2008-11-09 16:56:37 -07:00
Joel Dice
000aeb25c1 handle case where first instruction is the target of a branch properly 2008-11-08 16:21:30 -07:00
Joel Dice
decd24965a implement multiplyCR and divideCR 2008-11-08 15:42:26 -07:00
Joel Dice
61539bae31 fix stack mapping bugs which broke GC 2008-11-08 15:36:38 -07:00
Joel Dice
312539af64 fix moves involving sign or zero extension 2008-11-08 13:47:26 -07:00
Joel Dice
f01f4441d9 various bugfixes and instructions implemented to get more tests passing 2008-11-06 17:39:38 -07:00
Joel Dice
1ba497d90a fix Exceptions test for amd64 2008-11-02 15:25:51 -07:00
Joel Dice
04da77e95b snapshot 2008-11-02 13:35:35 -07:00
Joel Dice
3e81405a33 snapshot 2008-11-01 16:16:18 -06:00
Joel Dice
dd4dc18916 snapshot 2008-11-01 13:14:13 -06:00
Joel Dice
6f1d02dae7 remove the libstdc++ dependency once and for all 
The trick is to make all destructors non-virtual.  This is safe because
we never use the delete operator, which is the only case where virtual
destructors are relevant.  This is a better solution than implementing
our own delete operator, because we want libraries loaded at runtime to
use the libstdc++ version, not ours.
 2008-10-28 15:40:50 -06:00
Joel Dice
88a1faa2a2 set global system pointer to null in MySystem::dispose in windows.cpp 2008-10-28 12:15:27 -06:00
Joel Dice
01cc868797 remove debug code from builtin.cpp 2008-10-27 15:39:14 -06:00
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
d20ee74d79 fix stack frame offset calculations for 64-bit values; insert dummy events for instructions which start with stack activity 2008-10-24 20:12:02 -06:00
Joel Dice
003afdc918 fix heap dump facility to visit all roots 2008-10-24 18:48:10 -06:00
Joel Dice
3b67417695 heap dump bugfixes 2008-10-22 18:05:34 -06:00
Joel Dice
d25a6098e6 remove support for hiding constructors and accessors in type-generator.cpp 
This feature is not being used, and it may be the cause of this bug:

  http://groups.google.com/group/avian/browse_thread/thread/955aa1479e9fddca
 2008-10-22 08:39:27 -06:00
Joel Dice
e2f3e3da77 enter active state at start of Java_java_lang_Runtime_dumpHeap 2008-10-21 17:49:32 -06:00
Joel Dice
0459a7701c enter exclusive state before dumping heap 2008-10-21 17:47:38 -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
7d6ca28b2f snapshot 2008-10-18 18:15:57 -06:00
Joel Dice
26614e2182 use same code to spill registers and stack frame slots 2008-10-16 18:10:35 -06:00
Joel Dice
5391c68efd bugfixes 2008-10-14 18:45:31 -06:00
Joel Dice
aaaf388652 fix handling of instructions which are targets of more than one conditional branch 2008-10-13 18:18:18 -06:00
Joel Dice
f38a55cbb2 make linking against libstdc++ the default, overrideable via use-libstdcpp make parameter 2008-10-13 16:31:59 -06:00
Joel Dice
3c798f5bd7 various bugfixes concerning control flow boundaries 2008-10-11 18:23:08 -06:00
Joel Dice
5c04c19e29 look for %s@%d format symbols when resolving native methods on Windows, which obviates the need for -k flag to dlltool 2008-10-10 17:37:36 -06:00
Joel Dice
81cb951b08 fix stack corruption due to spurious pop events generated for jsr bytecodes 2008-10-09 17:14:52 -06:00
Joel Dice
83d5d6fde4 avoid unnecessary moves in resolveJunctionSite; distinguish between branches and other events when deciding when to marshal values at junctions 2008-10-07 18:08:13 -06:00
Joel Dice
f6c4496166 various bugfixes 2008-10-05 18:50:59 -06:00
Joel Dice
adb63778f0 fix stack and local snapshots for DummyEvents 2008-10-04 18:14:43 -06:00
Joel Dice
d54ee9081b return null for null argument to MyArchitecture::frameIp 2008-10-04 18:12:29 -06:00
Joel Dice
83aa342bc8 hello, world on amd64 2008-10-04 11:26:35 -06:00
dain
c9e0aa824d Initialized variables to appease gcc 4.2 2008-10-02 13:20:30 -06:00
Joel Dice
07daa9be51 free properties array in Machine::dispose 2008-09-30 17:03:13 -06:00
Joel Dice
df75153a85 handle case of null Stack::pushEvent in CallEvent ctor 2008-09-30 11:22:46 -06:00
Joel Dice
89cc5aa546 initialize JarElement::region in constructor 2008-09-29 18:04:47 -06:00
Joel Dice
823327a00b fix bytecode address calculations which broke when using -Os 2008-09-29 08:46:44 -06:00
Joel Dice
d409f89d5d ensure that only one value holds a given frame site at at time 2008-09-28 15:56:12 -06:00
Joel Dice
61c708d7b2 reserve stack space for arguments to native calls 2008-09-28 13:00:52 -06:00
Joel Dice
c699725cf8 avoid running out of registers when picking junction sites 2008-09-27 16:01:39 -06:00
Joel Dice
965b83303f implement additional instructions 2008-09-27 16:00:58 -06:00
Joel Dice
1910e1b837 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2008-09-26 18:17:41 -06:00
Joel Dice
ac988f7a0d fix static field lookup from interfaces 2008-09-26 18:17:13 -06:00
J. Treadwell
27e8bd1406 Temporary StringBuilder fix 2008-09-26 11:31:47 -06:00
Joel Dice
11c2afbf91 bugfixes 2008-09-24 18:48:32 -06:00
Joel Dice
f2bf152eba more bugfixes 2008-09-23 18:01:42 -06:00
Joel Dice
d4938115ef various bugfixes 2008-09-23 15:18:41 -06:00
Joel Dice
b8dd495ada fix build 2008-09-22 08:28:18 -06:00
Joel Dice
86bec5e3b7 sketch out handling of reads at control flow blocks with multiple predecessors 2008-09-21 18:58:54 -06:00
Joel Dice
1b4ad1db42 snapshot 2008-09-20 17:42:46 -06:00
Joel Dice
96c6c7f8ea don't log JIT results to stderr unless DebugCompile is true 2008-09-19 16:43:06 -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
fadb66044b remove unused instructions from x86.cpp 2008-09-16 07:59:34 -06:00
Joel Dice
606e5cb238 lots of bugfixes - finally got Simple.pow() working 2008-09-14 20:28:42 -06:00
Joel Dice
bd9e8a77e2 improved tracking of data flow across control flow boundaries 2008-09-13 15:09:26 -06:00
Joel Dice
44ccd2b09e write alignment padding to output buffer in MyAssembler::writeTo 2008-09-13 15:07:39 -06:00
Joel Dice
392a1417e5 lots of bugfixes and a few instructions added 2008-09-08 18:31:19 -06:00
Joel Dice
1dd25325c8 implement various instructions, including AlignedCall 2008-09-07 20:21:52 -06:00
Joel Dice
dcdf78dc44 fix localOffset calculation 2008-09-07 20:21:11 -06:00
Joel Dice
af9758a6d3 got a simple arithmetic test working 2008-09-07 14:12:11 -06:00
Joel Dice
9971eaa92a support out-of-order compilation in x86 assembler 2008-09-06 19:37:12 -06:00
Joel Dice
ed806ca740 working towards compiling simple methods 2008-09-06 15:25:41 -06:00
Joel Dice
e13b755048 more progress towards new JIT code - this compiles but won't run properly 2008-09-05 09:00:38 -06:00
Joel Dice
5f7d68b404 snapshot 2008-08-30 14:12:27 -06:00
Joel Dice
767c3ce2e4 snapshot 2008-08-28 16:43:35 -06:00
Joel Dice
a062d8c975 progress towards refactored JIT compiler to support PowerPC and data flow analysis across control flow boundaries 2008-08-23 12:04:36 -06:00
Joel Dice
9908bbcf50 sketch new version of x86.cpp to conform to new assembler.h APIs 2008-08-19 17:38:37 -06:00
Joel Dice
9654e3445d refactor stack walking and visiting code to abstract away certain details of stack layout which are architecture-specific 2008-08-18 09:23:01 -06:00
Joel Dice
4a3be37c67 snapshot 2008-08-17 13:32:40 -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
5dc0959294 snapshot 2008-08-16 12:46:14 -06:00
Joel Dice
9efe6f1f05 snapshot 2008-08-16 11:45:36 -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
78e48996b5 fix handling of native methods in stack walking code 2008-08-14 12:13:05 -06:00
Joel Dice
e46e222f38 wait for other threads to exit in DestroyJavaVM 2008-08-13 15:39:48 -06:00
Joel Dice
297e8f09ec don't calculate the index in hashMapInsert until it's needed 2008-08-11 16:44:38 -06:00
Joel Dice
5f4d86a703 avoid potential corruption in hashMapInsert due to table-resize-on-GC 2008-08-11 15:20:12 -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
6ee2b0280e implement compareAM 2008-07-31 07:53:43 -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
29df431df5 snapshot 2008-07-23 17:58:29 -06:00
Joel Dice
c6071569bf Merge branch 'powerpc' of oss:/var/local/git/avian into powerpc 2008-07-23 17:58:03 -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
Joel Dice
f0c9deaa06 snapshot 2008-07-17 17:34:38 -06:00
Eric Scharff
13a535d1c6 Added a getContentLength() method to URLConnection 
This is particularly important if you want to get the number of bytes of a
resource loaded by the class loader:
  getClass().getResource("myFile").openConnection().getContentLength()
 2008-07-15 09:36:52 -06:00
Joel Dice
a2ba391b89 support -Xbootclasspath and -Xbootclasspath/a options 2008-07-14 11:51:20 -06:00
Joel Dice
cfaf690306 update usage message (part 2) 2008-07-14 11:23:33 -06:00
Joel Dice
d20fc697cb update usage message 2008-07-14 11:21:59 -06:00
Joel Dice
a6853fa820 rename -Xbootclasspath option to -Xbootclasspath/p to match Sun syntax and semantics 2008-07-14 11:16:34 -06:00
Joel Dice
920034e231 use JavaVMInitArgs instead of JDK1_1InitArgs in JNI_CreateJavaVM; support -Xbootclasspath option 2008-07-14 11:02:43 -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
bf58eaa6ba assert that the target of an invokestatic call is a static method and that the targets of all other invokes are non-static 2008-07-12 14:52:14 -06:00
Joel Dice
623b5f84dc fix GC-in-hashMapResize bug which occasionally resulted in corrupt Machine::monitorMap 2008-07-12 10:38:09 -06:00
Joel Dice
9c82bd2386 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2008-07-11 22:01:57 -06:00
Joel Dice
fcd4f0c8f5 third attempt to properly fix race condition in compile function 2008-07-11 22:01:42 -06:00
Joel Dice
149949a2d2 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian 2008-07-11 19:26:53 -06:00
Joel Dice
fa3ceb0a75 add assertions to hashMapResize and hashMapRemove to help debug rare infinite loop 2008-07-11 19:26:46 -06:00
Joel Dice
5a97caa4ca fix recently-introduced GC safety bug 2008-07-11 19:24:37 -06:00
Joel Dice
e31f795661 include Thread::backupHeapIndex in heap footprint calculation 2008-07-11 19:21:53 -06:00
Joel Dice
b1f24079ec fix race condition in compile function (part 2) 2008-07-11 18:14:30 -06:00
Joel Dice
0b79ab4fed fix race condition in compile function 
1. Thread A calls function F, which needs to be compiled.  So it
compiles it.
 2. Thread B calls function F, sees that it's already been compiled and
so runs it.
 3. Thread B calls function G from function F, and G needs to be
compiled, but it needs to acquire the class lock first, which A owns.
 4. Thread A causes a GC, walks thread B's stack, but function F has not
yet been added to the method tree, so it thinks the stack has no frames.
 5. Thread A finally adds function F to the method tree.
 6. Thread A causes another GC and walks thread B's stack again, and
this time it finds function F in the method tree.
 7. AAAARRRRRGGGHHH!!!!!!
 2008-07-11 18:11:13 -06:00
Joel Dice
23043d140f snapshot 2008-07-05 14:21:13 -06:00
Joel Dice
107ac01304 fix addCR and subtractCR for cases of 64-bit constants on amd64 2008-07-02 08:52:35 -06:00
Joel Dice
0f94bea5a6 fix stress test breakage when throwing ArrayIndexOutOfBoundsExceptions 2008-06-27 09:09:14 -06:00
J. Treadwell
ee8f5a8cd8 First powerpc.cpp with actual ppc assembling (incomplete)! 2008-06-25 17:35:01 -06:00
Joel Dice
9bea21dec7 add copyright header to files which don't already have them 2008-06-25 14:53:48 -06:00
Joel Dice
61e65098df use virtual dispatch when calling Thread.run from VM 2008-06-25 10:28:11 -06:00
Joel Dice
8512d6c74c Merge branch 'master' of oss:/var/local/git/avian into powerpc 2008-06-23 17:38:16 -06:00
Joel Dice
3d84f31c13 fix longCompareCR on 64-bit systems 2008-06-17 09:32:46 -06:00
Eric Scharff
86a5e9ba8a Removed debugging that should not have been checked in 2008-06-16 11:47:54 -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
dicej
04724b657d hello, world! 2008-06-15 14:17:52 -06:00
dicej
fb6624b9ae add cfm_vectors to JNIEnvVTable to match jni.h on OSX 2008-06-15 12:51:04 -06:00
dicej
32f4feb4aa use LOCAL macro to mark local symbols in *.S 2008-06-15 12:49:37 -06:00
dicej
a9ae50900a define LinkageArea in powerpc.h and add the latter to makefile 2008-06-15 12:48:53 -06:00
dicej
b1750c0c9a fix powerpc.S syntax errors 2008-06-15 12:28:48 -06:00
dicej
358f3f801b Merge branch 'master' of oss.ecovate.com:/var/local/git/avian into powerpc 2008-06-15 11:48:05 -06:00
Joel Dice
b683d836c3 implement longCompareRR 2008-06-12 11:23:20 -06:00
Joel Dice
6f5cc9f45f fix unused parameter warning 2008-06-12 11:09:53 -06:00
Joel Dice
eabb37e6eb add lcmp instruction to Compiler and corresponding LongCompare instruction to Assembler, since that's the only efficient way to implement the lcmp bytecode on x86 2008-06-12 10:56:48 -06:00
Joel Dice
357acbdb0f implement move4To8CR, which just defers to moveCR 2008-06-11 08:59:05 -06:00
Joel Dice
94f7efc160 ignore contents of stack location in popNow if the value already resides elsewhere besides the stack 2008-06-11 08:47:06 -06:00
Joel Dice
633ef83fa1 fix handling of values which appear more than once on the stack in trySteal 2008-06-10 18:48:46 -06:00
Joel Dice
b80a3cea85 handle constant comparisons (sometimes generated by ProGuard) in compiler 2008-06-10 18:17:44 -06:00
Joel Dice
dc136bb751 fix stack tracking weirdness for jsr instruction 2008-06-10 18:16:02 -06:00
Joel Dice
5b2065e76c only elide constant multiply if constant is one, not zero (duh) 2008-06-10 18:14:15 -06:00
Joel Dice
fc8c5a2ea9 fix a few bugs revealed by ProGuard optimizations, including too-early constant propagation during array loads and stores 2008-06-10 08:49:13 -06:00
Joel Dice
4b67adaa0a sketch vmNativeCall implementation for powerpc 2008-06-08 13:47:37 -06:00
Joel Dice
ca6215c720 start fleshing out powerpc.S 2008-06-06 08:55:16 -06:00
dicej
f375f6e85c enable powerpc build for process=interpret (won't run yet, though) 2008-06-04 17:09:09 -06:00
dicej
9e0f0a17a7 Merge branch 'master' of oss.readytalk.com:/var/local/git/avian into powerpc 2008-06-04 16:22:46 -06:00
dicej
0ccf8d57ea rough sketch of powerpc support 2008-06-04 16:21:27 -06:00
Joel Dice
ec791a90de fix process=interpret build 2008-06-04 16:17:06 -06:00
Eric Scharff
2aadbaac38 Force alignment for native calls 2008-06-02 11:43:58 -06:00
Eric Scharff
33306aa2f5 Fix warning on confused Mac OS X gcc 4.0 2008-06-02 10:12:09 -06:00
Joel Dice
3b0e05b739 fix unused parameter warning 2008-06-02 08:13:20 -06:00
Joel Dice
ecfb853f17 use relative branches where possible on amd64 2008-06-02 07:49:09 -06:00
Joel Dice
2f3e1ea393 fix incorrect debug logging message 2008-05-31 19:40:18 -06:00
Joel Dice
7d1ed0da05 Merge branch 'compiler' of oss.readytalk.com:/var/local/git/avian 
Conflicts:

	src/compiler.cpp
 2008-05-31 19:30:28 -06:00
Joel Dice
7cdff9f1ee disable debug logging and fix build warnings 2008-05-31 17:06:45 -06:00
Joel Dice
eacca98c3f fix regressions affecting 32-bit systems 2008-05-31 16:53:37 -06:00
Joel Dice
1450b12e5b visit thunk objects during GC in MyProcessor::visitObjects 2008-05-31 16:24:32 -06:00
Joel Dice
e68a18248c use codePromise helper function in CallEvent ctor 2008-05-31 16:24:04 -06:00
Joel Dice
65830a76c5 improve efficiency of array bounds checks and generate a thunk table for native functions called indirectly 2008-05-31 16:14:27 -06:00
Joel Dice
51256f3cc2 fix moveCM for 64-bit constants on 64-bit machines 2008-05-22 18:16:44 -06:00
Joel Dice
f05318b787 fix thinkos in d2i and friends 2008-05-22 18:08:41 -06:00
Joel Dice
3326aafdac various 32-bit fixes 2008-05-22 11:15:18 -06:00
Joel Dice
21cb1c3c8f remove Event::validate, since it is no longer needed and actually causes trouble 2008-05-20 16:47:53 -06:00
Joel Dice
36dbf1ad14 fix another local variable caching bug 2008-05-20 15:24:10 -06:00
Joel Dice
d604efd8f5 fix local variable caching bug 2008-05-20 13:11:42 -06:00
Joel Dice
651c4559db implement compareAR 2008-05-19 10:39:05 -06:00
Joel Dice
983e64c86a preserve old value of local variable *before* it is overwritten 2008-05-19 10:14:54 -06:00
Joel Dice
83da1ec205 preserve old value of local variable across store if it will be used later; tweak site ownership transfer in MoveEvent.compile 2008-05-19 08:53:40 -06:00
Joel Dice
292f84a3fa fix thinko in laload implementation 2008-05-19 08:50:37 -06:00
Joel Dice
08a1921eb7 only set target equal to src->source in MoveEvent.compile if it is a simple load or store 2008-05-19 07:44:39 -06:00
Joel Dice
ad6153612b disallow memory,constant comparisons on x86 2008-05-19 07:43:37 -06:00
Joel Dice
b52cefa86e disallow memory operands in 32-bit comparisons on amd64 2008-05-19 07:27:05 -06:00