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This commit is contained in:
Rickard Bäckman 2013-08-05 17:15:35 +02:00
commit ae3b577a0e
6 changed files with 108 additions and 35 deletions
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2
hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
View file

@ -2295,7 +2295,7 @@ void LIRGenerator::do_UnsafeGetObject(UnsafeGetObject* x) {
if (gen_type_check) {
// We have determined that offset == referent_offset && src != null.
// if (src->_klass->_reference_type == REF_NONE) -> continue
__ move(new LIR_Address(src.result(), oopDesc::klass_offset_in_bytes(), UseCompressedKlassPointers ? T_OBJECT : T_ADDRESS), src_klass);
__ move(new LIR_Address(src.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), src_klass);
LIR_Address* reference_type_addr = new LIR_Address(src_klass, in_bytes(InstanceKlass::reference_type_offset()), T_BYTE);
LIR_Opr reference_type = new_register(T_INT);
__ move(reference_type_addr, reference_type);

2
hotspot/src/share/vm/classfile/classLoader.cpp
View file

@ -878,7 +878,7 @@ objArrayOop ClassLoader::get_system_packages(TRAPS) {
instanceKlassHandle ClassLoader::load_classfile(Symbol* h_name, TRAPS) {
ResourceMark rm(THREAD);
EventMark m("loading class " INTPTR_FORMAT, (address)h_name);
EventMark m("loading class %s", h_name->as_C_string());
ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion);
stringStream st;

52
hotspot/src/share/vm/runtime/arguments.cpp
View file

@ -60,6 +60,28 @@
#define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp"
#define DEFAULT_JAVA_LAUNCHER "generic"
// Disable options not supported in this release, with a warning if they
// were explicitly requested on the command-line
#define UNSUPPORTED_OPTION(opt, description) \
do { \
if (opt) { \
if (FLAG_IS_CMDLINE(opt)) { \
warning(description " is disabled in this release."); \
} \
FLAG_SET_DEFAULT(opt, false); \
} \
} while(0)
#define UNSUPPORTED_GC_OPTION(gc) \
do { \
if (gc) { \
if (FLAG_IS_CMDLINE(gc)) { \
warning(#gc " is not supported in this VM. Using Serial GC."); \
} \
FLAG_SET_DEFAULT(gc, false); \
} \
} while(0)
char** Arguments::_jvm_flags_array = NULL;
int Arguments::_num_jvm_flags = 0;
char** Arguments::_jvm_args_array = NULL;
@ -3128,14 +3150,17 @@ jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_req
FLAG_SET_DEFAULT(UseLargePages, false);
}
// Tiered compilation is undefined with C1.
TieredCompilation = false;
#else
if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) {
FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1);
}
#endif
#ifndef TIERED
// Tiered compilation is undefined.
UNSUPPORTED_OPTION(TieredCompilation, "TieredCompilation");
#endif
// If we are running in a headless jre, force java.awt.headless property
// to be true unless the property has already been set.
// Also allow the OS environment variable JAVA_AWT_HEADLESS to set headless state.
@ -3278,29 +3303,6 @@ void Arguments::set_shared_spaces_flags() {
}
}
// Disable options not supported in this release, with a warning if they
// were explicitly requested on the command-line
#define UNSUPPORTED_OPTION(opt, description) \
do { \
if (opt) { \
if (FLAG_IS_CMDLINE(opt)) { \
warning(description " is disabled in this release."); \
} \
FLAG_SET_DEFAULT(opt, false); \
} \
} while(0)
#define UNSUPPORTED_GC_OPTION(gc) \
do { \
if (gc) { \
if (FLAG_IS_CMDLINE(gc)) { \
warning(#gc " is not supported in this VM. Using Serial GC."); \
} \
FLAG_SET_DEFAULT(gc, false); \
} \
} while(0)
#if !INCLUDE_ALL_GCS
static void force_serial_gc() {
FLAG_SET_DEFAULT(UseSerialGC, true);

12
hotspot/src/share/vm/utilities/exceptions.cpp
View file

@ -125,13 +125,13 @@ void Exceptions::_throw_oop(Thread* thread, const char* file, int line, oop exce
}
void Exceptions::_throw(Thread* thread, const char* file, int line, Handle h_exception, const char* message) {
ResourceMark rm;
assert(h_exception() != NULL, "exception should not be NULL");
// tracing (do this up front - so it works during boot strapping)
if (TraceExceptions) {
ttyLocker ttyl;
ResourceMark rm;
tty->print_cr("Exception <%s>%s%s (" INTPTR_FORMAT " ) \n"
tty->print_cr("Exception <%s%s%s> (" INTPTR_FORMAT ") \n"
"thrown [%s, line %d]\nfor thread " INTPTR_FORMAT,
h_exception->print_value_string(),
message ? ": " : "", message ? message : "",
@ -141,7 +141,9 @@ void Exceptions::_throw(Thread* thread, const char* file, int line, Handle h_exc
NOT_PRODUCT(Exceptions::debug_check_abort(h_exception, message));
// Check for special boot-strapping/vm-thread handling
if (special_exception(thread, file, line, h_exception)) return;
if (special_exception(thread, file, line, h_exception)) {
return;
}
assert(h_exception->is_a(SystemDictionary::Throwable_klass()), "exception is not a subclass of java/lang/Throwable");
@ -149,7 +151,9 @@ void Exceptions::_throw(Thread* thread, const char* file, int line, Handle h_exc
thread->set_pending_exception(h_exception(), file, line);
// vm log
Events::log_exception(thread, "Threw " INTPTR_FORMAT " at %s:%d", (address)h_exception(), file, line);
Events::log_exception(thread, "Exception <%s%s%s> (" INTPTR_FORMAT ") thrown at [%s, line %d]",
h_exception->print_value_string(), message ? ": " : "", message ? message : "",
(address)h_exception(), file, line);
}

4
hotspot/test/compiler/codecache/CheckUpperLimit.java
View file

@ -35,10 +35,6 @@ public class CheckUpperLimit {
ProcessBuilder pb;
OutputAnalyzer out;
pb = ProcessTools.createJavaProcessBuilder("-XX:ReservedCodeCacheSize=2048m", "-version");
out = new OutputAnalyzer(pb.start());
out.shouldHaveExitValue(0);
pb = ProcessTools.createJavaProcessBuilder("-XX:ReservedCodeCacheSize=2049m", "-version");
out = new OutputAnalyzer(pb.start());
out.shouldContain("Invalid ReservedCodeCacheSize=");

71
hotspot/test/compiler/unsafe/GetUnsafeObjectG1PreBarrier.java Normal file
View file

@ -0,0 +1,71 @@
/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8016474
* @summary The bug only happens with C1 and G1 using a different ObjectAlignmentInBytes than KlassAlignmentInBytes (which is 8)
* @run main/othervm -Xbatch -XX:ObjectAlignmentInBytes=32 GetUnsafeObjectG1PreBarrier
*/
import java.lang.reflect.Field;
import sun.misc.Unsafe;
public class GetUnsafeObjectG1PreBarrier {
private static final Unsafe unsafe;
private static final int N = 100_000;
static {
try {
Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
theUnsafe.setAccessible(true);
unsafe = (Unsafe) theUnsafe.get(null);
} catch (NoSuchFieldException | IllegalAccessException e) {
throw new IllegalStateException(e);
}
}
public Object a;
public static void main(String[] args) throws Throwable {
new GetUnsafeObjectG1PreBarrier();
}
public GetUnsafeObjectG1PreBarrier() throws Throwable {
doit();
}
private void doit() throws Throwable {
Field field = GetUnsafeObjectG1PreBarrier.class.getField("a");
long fieldOffset = unsafe.objectFieldOffset(field);
for (int i = 0; i < N; i++) {
readField(this, fieldOffset);
}
}
private void readField(Object o, long fieldOffset) {
unsafe.getObject(o, fieldOffset);
}
}