6887571: Increase default heap config sizes
Summary: Apply modification of existing server heap size ergo to all collectors except CMS.
Reviewed-by: jmasa, ysr, xlu
/*
* Copyright 1997-2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
class AdapterHandlerEntry;
class vframeStream;
// Runtime is the base class for various runtime interfaces
// (InterpreterRuntime, CompilerRuntime, etc.). It provides
// shared functionality such as exception forwarding (C++ to
// Java exceptions), locking/unlocking mechanisms, statistical
// information, etc.
class SharedRuntime: AllStatic {
private:
static methodHandle resolve_sub_helper(JavaThread *thread,
bool is_virtual,
bool is_optimized, TRAPS);
// Shared stub locations
static RuntimeStub* _wrong_method_blob;
static RuntimeStub* _ic_miss_blob;
static RuntimeStub* _resolve_opt_virtual_call_blob;
static RuntimeStub* _resolve_virtual_call_blob;
static RuntimeStub* _resolve_static_call_blob;
static SafepointBlob* _polling_page_safepoint_handler_blob;
static SafepointBlob* _polling_page_return_handler_blob;
#ifdef COMPILER2
static ExceptionBlob* _exception_blob;
static UncommonTrapBlob* _uncommon_trap_blob;
#endif // COMPILER2
#ifndef PRODUCT
// Counters
static int _nof_megamorphic_calls; // total # of megamorphic calls (through vtable)
#endif // !PRODUCT
public:
// max bytes for each dtrace string parameter
enum { max_dtrace_string_size = 256 };
// The following arithmetic routines are used on platforms that do
// not have machine instructions to implement their functionality.
// Do not remove these.
// long arithmetics
static jlong lmul(jlong y, jlong x);
static jlong ldiv(jlong y, jlong x);
static jlong lrem(jlong y, jlong x);
// float and double remainder
static jfloat frem(jfloat x, jfloat y);
static jdouble drem(jdouble x, jdouble y);
// float conversion (needs to set appropriate rounding mode)
static jint f2i (jfloat x);
static jlong f2l (jfloat x);
static jint d2i (jdouble x);
static jlong d2l (jdouble x);
static jfloat d2f (jdouble x);
static jfloat l2f (jlong x);
static jdouble l2d (jlong x);
// double trigonometrics and transcendentals
static jdouble dsin(jdouble x);
static jdouble dcos(jdouble x);
static jdouble dtan(jdouble x);
static jdouble dlog(jdouble x);
static jdouble dlog10(jdouble x);
static jdouble dexp(jdouble x);
static jdouble dpow(jdouble x, jdouble y);
// exception handling across interpreter/compiler boundaries
static address raw_exception_handler_for_return_address(address return_address);
static address exception_handler_for_return_address(address return_address);
#ifndef SERIALGC
// G1 write barriers
static void g1_wb_pre(oopDesc* orig, JavaThread *thread);
static void g1_wb_post(void* card_addr, JavaThread* thread);
#endif // !SERIALGC
// exception handling and implicit exceptions
static address compute_compiled_exc_handler(nmethod* nm, address ret_pc, Handle& exception,
bool force_unwind, bool top_frame_only);
enum ImplicitExceptionKind {
IMPLICIT_NULL,
IMPLICIT_DIVIDE_BY_ZERO,
STACK_OVERFLOW
};
static void throw_AbstractMethodError(JavaThread* thread);
static void throw_IncompatibleClassChangeError(JavaThread* thread);
static void throw_ArithmeticException(JavaThread* thread);
static void throw_NullPointerException(JavaThread* thread);
static void throw_NullPointerException_at_call(JavaThread* thread);
static void throw_StackOverflowError(JavaThread* thread);
static address continuation_for_implicit_exception(JavaThread* thread,
address faulting_pc,
ImplicitExceptionKind exception_kind);
// Shared stub locations
static address get_poll_stub(address pc);
static address get_ic_miss_stub() {
assert(_ic_miss_blob!= NULL, "oops");
return _ic_miss_blob->instructions_begin();
}
static address get_handle_wrong_method_stub() {
assert(_wrong_method_blob!= NULL, "oops");
return _wrong_method_blob->instructions_begin();
}
#ifdef COMPILER2
static void generate_uncommon_trap_blob(void);
static UncommonTrapBlob* uncommon_trap_blob() { return _uncommon_trap_blob; }
#endif // COMPILER2
static address get_resolve_opt_virtual_call_stub(){
assert(_resolve_opt_virtual_call_blob != NULL, "oops");
return _resolve_opt_virtual_call_blob->instructions_begin();
}
static address get_resolve_virtual_call_stub() {
assert(_resolve_virtual_call_blob != NULL, "oops");
return _resolve_virtual_call_blob->instructions_begin();
}
static address get_resolve_static_call_stub() {
assert(_resolve_static_call_blob != NULL, "oops");
return _resolve_static_call_blob->instructions_begin();
}
static SafepointBlob* polling_page_return_handler_blob() { return _polling_page_return_handler_blob; }
static SafepointBlob* polling_page_safepoint_handler_blob() { return _polling_page_safepoint_handler_blob; }
// Counters
#ifndef PRODUCT
static address nof_megamorphic_calls_addr() { return (address)&_nof_megamorphic_calls; }
#endif // PRODUCT
// Helper routine for full-speed JVMTI exception throwing support
static void throw_and_post_jvmti_exception(JavaThread *thread, Handle h_exception);
static void throw_and_post_jvmti_exception(JavaThread *thread, symbolOop name, const char *message = NULL);
// RedefineClasses() tracing support for obsolete method entry
static int rc_trace_method_entry(JavaThread* thread, methodOopDesc* m);
// To be used as the entry point for unresolved native methods.
static address native_method_throw_unsatisfied_link_error_entry();
// bytecode tracing is only used by the TraceBytecodes
static intptr_t trace_bytecode(JavaThread* thread, intptr_t preserve_this_value, intptr_t tos, intptr_t tos2) PRODUCT_RETURN0;
// Used to back off a spin lock that is under heavy contention
static void yield_all(JavaThread* thread, int attempts = 0);
static oop retrieve_receiver( symbolHandle sig, frame caller );
static void register_finalizer(JavaThread* thread, oopDesc* obj);
// dtrace notifications
static int dtrace_object_alloc(oopDesc* o);
static int dtrace_object_alloc_base(Thread* thread, oopDesc* o);
static int dtrace_method_entry(JavaThread* thread, methodOopDesc* m);
static int dtrace_method_exit(JavaThread* thread, methodOopDesc* m);
// Utility method for retrieving the Java thread id, returns 0 if the
// thread is not a well formed Java thread.
static jlong get_java_tid(Thread* thread);
// used by native wrappers to reenable yellow if overflow happened in native code
static void reguard_yellow_pages();
/**
* Fill in the "X cannot be cast to a Y" message for ClassCastException
*
* @param thr the current thread
* @param name the name of the class of the object attempted to be cast
* @return the dynamically allocated exception message (must be freed
* by the caller using a resource mark)
*
* BCP must refer to the current 'checkcast' opcode for the frame
* on top of the stack.
* The caller (or one of it's callers) must use a ResourceMark
* in order to correctly free the result.
*/
static char* generate_class_cast_message(JavaThread* thr, const char* name);
/**
* Fill in the message for a WrongMethodTypeException
*
* @param thr the current thread
* @param mtype (optional) expected method type (or argument class)
* @param mhandle (optional) actual method handle (or argument)
* @return the dynamically allocated exception message
*
* BCP for the frame on top of the stack must refer to an
* 'invokevirtual' op for a method handle, or an 'invokedyamic' op.
* The caller (or one of its callers) must use a ResourceMark
* in order to correctly free the result.
*/
static char* generate_wrong_method_type_message(JavaThread* thr,
oopDesc* mtype = NULL,
oopDesc* mhandle = NULL);
/** Return non-null if the mtype is a klass or Class, not a MethodType. */
static oop wrong_method_type_is_for_single_argument(JavaThread* thr,
oopDesc* mtype);
/**
* Fill in the "X cannot be cast to a Y" message for ClassCastException
*
* @param name the name of the class of the object attempted to be cast
* @param klass the name of the target klass attempt
* @param gripe the specific kind of problem being reported
* @return the dynamically allocated exception message (must be freed
* by the caller using a resource mark)
*
* This version does not require access the frame, so it can be called
* from interpreted code
* The caller (or one of it's callers) must use a ResourceMark
* in order to correctly free the result.
*/
static char* generate_class_cast_message(const char* name, const char* klass,
const char* gripe = " cannot be cast to ");
// Resolves a call site- may patch in the destination of the call into the
// compiled code.
static methodHandle resolve_helper(JavaThread *thread,
bool is_virtual,
bool is_optimized, TRAPS);
static void generate_stubs(void);
private:
// deopt blob
static void generate_deopt_blob(void);
static DeoptimizationBlob* _deopt_blob;
public:
static DeoptimizationBlob* deopt_blob(void) { return _deopt_blob; }
// Resets a call-site in compiled code so it will get resolved again.
static methodHandle reresolve_call_site(JavaThread *thread, TRAPS);
// In the code prolog, if the klass comparison fails, the inline cache
// misses and the call site is patched to megamorphic
static methodHandle handle_ic_miss_helper(JavaThread* thread, TRAPS);
// Find the method that called us.
static methodHandle find_callee_method(JavaThread* thread, TRAPS);
private:
static Handle find_callee_info(JavaThread* thread,
Bytecodes::Code& bc,
CallInfo& callinfo, TRAPS);
static Handle find_callee_info_helper(JavaThread* thread,
vframeStream& vfst,
Bytecodes::Code& bc,
CallInfo& callinfo, TRAPS);
static address clean_virtual_call_entry();
static address clean_opt_virtual_call_entry();
static address clean_static_call_entry();
public:
// Read the array of BasicTypes from a Java signature, and compute where
// compiled Java code would like to put the results. Values in reg_lo and
// reg_hi refer to 4-byte quantities. Values less than SharedInfo::stack0 are
// registers, those above refer to 4-byte stack slots. All stack slots are
// based off of the window top. SharedInfo::stack0 refers to the first usable
// slot in the bottom of the frame. SharedInfo::stack0+1 refers to the memory word
// 4-bytes higher. So for sparc because the register window save area is at
// the bottom of the frame the first 16 words will be skipped and SharedInfo::stack0
// will be just above it. (
// return value is the maximum number of VMReg stack slots the convention will use.
static int java_calling_convention(const BasicType *sig_bt, VMRegPair *regs, int total_args_passed, int is_outgoing);
// Ditto except for calling C
static int c_calling_convention(const BasicType *sig_bt, VMRegPair *regs, int total_args_passed);
// Generate I2C and C2I adapters. These adapters are simple argument marshalling
// blobs. Unlike adapters in the tiger and earlier releases the code in these
// blobs does not create a new frame and are therefore virtually invisible
// to the stack walking code. In general these blobs extend the callers stack
// as needed for the conversion of argument locations.
// When calling a c2i blob the code will always call the interpreter even if
// by the time we reach the blob there is compiled code available. This allows
// the blob to pass the incoming stack pointer (the sender sp) in a known
// location for the interpreter to record. This is used by the frame code
// to correct the sender code to match up with the stack pointer when the
// thread left the compiled code. In addition it allows the interpreter
// to remove the space the c2i adapter allocated to do it argument conversion.
// Although a c2i blob will always run interpreted even if compiled code is
// present if we see that compiled code is present the compiled call site
// will be patched/re-resolved so that later calls will run compiled.
// Aditionally a c2i blob need to have a unverified entry because it can be reached
// in situations where the call site is an inlined cache site and may go megamorphic.
// A i2c adapter is simpler than the c2i adapter. This is because it is assumed
// that the interpreter before it does any call dispatch will record the current
// stack pointer in the interpreter frame. On return it will restore the stack
// pointer as needed. This means the i2c adapter code doesn't need any special
// handshaking path with compiled code to keep the stack walking correct.
static AdapterHandlerEntry* generate_i2c2i_adapters(MacroAssembler *_masm,
int total_args_passed,
int max_arg,
const BasicType *sig_bt,
const VMRegPair *regs);
// OSR support
// OSR_migration_begin will extract the jvm state from an interpreter
// frame (locals, monitors) and store the data in a piece of C heap
// storage. This then allows the interpreter frame to be removed from the
// stack and the OSR nmethod to be called. That method is called with a
// pointer to the C heap storage. This pointer is the return value from
// OSR_migration_begin.
static intptr_t* OSR_migration_begin( JavaThread *thread);
// OSR_migration_end is a trivial routine. It is called after the compiled
// method has extracted the jvm state from the C heap that OSR_migration_begin
// created. It's entire job is to simply free this storage.
static void OSR_migration_end ( intptr_t* buf);
// Convert a sig into a calling convention register layout
// and find interesting things about it.
static VMRegPair* find_callee_arguments(symbolOop sig, bool is_static, int *arg_size);
static VMReg name_for_receiver();
// "Top of Stack" slots that may be unused by the calling convention but must
// otherwise be preserved.
// On Intel these are not necessary and the value can be zero.
// On Sparc this describes the words reserved for storing a register window
// when an interrupt occurs.
static uint out_preserve_stack_slots();
// Save and restore a native result
static void save_native_result(MacroAssembler *_masm, BasicType ret_type, int frame_slots );
static void restore_native_result(MacroAssembler *_masm, BasicType ret_type, int frame_slots );
// Generate a native wrapper for a given method. The method takes arguments
// in the Java compiled code convention, marshals them to the native
// convention (handlizes oops, etc), transitions to native, makes the call,
// returns to java state (possibly blocking), unhandlizes any result and
// returns.
static nmethod *generate_native_wrapper(MacroAssembler* masm,
methodHandle method,
int total_args_passed,
int max_arg,
BasicType *sig_bt,
VMRegPair *regs,
BasicType ret_type );
#ifdef HAVE_DTRACE_H
// Generate a dtrace wrapper for a given method. The method takes arguments
// in the Java compiled code convention, marshals them to the native
// convention (handlizes oops, etc), transitions to native, makes the call,
// returns to java state (possibly blocking), unhandlizes any result and
// returns.
static nmethod *generate_dtrace_nmethod(MacroAssembler* masm,
methodHandle method);
// dtrace support to convert a Java string to utf8
static void get_utf(oopDesc* src, address dst);
#endif // def HAVE_DTRACE_H
// A compiled caller has just called the interpreter, but compiled code
// exists. Patch the caller so he no longer calls into the interpreter.
static void fixup_callers_callsite(methodOopDesc* moop, address ret_pc);
// Slow-path Locking and Unlocking
static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread);
static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock);
// Resolving of calls
static address resolve_static_call_C (JavaThread *thread);
static address resolve_virtual_call_C (JavaThread *thread);
static address resolve_opt_virtual_call_C(JavaThread *thread);
// arraycopy, the non-leaf version. (See StubRoutines for all the leaf calls.)
static void slow_arraycopy_C(oopDesc* src, jint src_pos,
oopDesc* dest, jint dest_pos,
jint length, JavaThread* thread);
// handle ic miss with caller being compiled code
// wrong method handling (inline cache misses, zombie methods)
static address handle_wrong_method(JavaThread* thread);
static address handle_wrong_method_ic_miss(JavaThread* thread);
#ifndef PRODUCT
// Collect and print inline cache miss statistics
private:
enum { maxICmiss_count = 100 };
static int _ICmiss_index; // length of IC miss histogram
static int _ICmiss_count[maxICmiss_count]; // miss counts
static address _ICmiss_at[maxICmiss_count]; // miss addresses
static void trace_ic_miss(address at);
public:
static int _monitor_enter_ctr; // monitor enter slow
static int _monitor_exit_ctr; // monitor exit slow
static int _throw_null_ctr; // throwing a null-pointer exception
static int _ic_miss_ctr; // total # of IC misses
static int _wrong_method_ctr;
static int _resolve_static_ctr;
static int _resolve_virtual_ctr;
static int _resolve_opt_virtual_ctr;
static int _implicit_null_throws;
static int _implicit_div0_throws;
static int _jbyte_array_copy_ctr; // Slow-path byte array copy
static int _jshort_array_copy_ctr; // Slow-path short array copy
static int _jint_array_copy_ctr; // Slow-path int array copy
static int _jlong_array_copy_ctr; // Slow-path long array copy
static int _oop_array_copy_ctr; // Slow-path oop array copy
static int _checkcast_array_copy_ctr; // Slow-path oop array copy, with cast
static int _unsafe_array_copy_ctr; // Slow-path includes alignment checks
static int _generic_array_copy_ctr; // Slow-path includes type decoding
static int _slow_array_copy_ctr; // Slow-path failed out to a method call
static int _new_instance_ctr; // 'new' object requires GC
static int _new_array_ctr; // 'new' array requires GC
static int _multi1_ctr, _multi2_ctr, _multi3_ctr, _multi4_ctr, _multi5_ctr;
static int _find_handler_ctr; // find exception handler
static int _rethrow_ctr; // rethrow exception
static int _mon_enter_stub_ctr; // monitor enter stub
static int _mon_exit_stub_ctr; // monitor exit stub
static int _mon_enter_ctr; // monitor enter slow
static int _mon_exit_ctr; // monitor exit slow
static int _partial_subtype_ctr; // SubRoutines::partial_subtype_check
// Statistics code
// stats for "normal" compiled calls (non-interface)
static int _nof_normal_calls; // total # of calls
static int _nof_optimized_calls; // total # of statically-bound calls
static int _nof_inlined_calls; // total # of inlined normal calls
static int _nof_static_calls; // total # of calls to static methods or super methods (invokespecial)
static int _nof_inlined_static_calls; // total # of inlined static calls
// stats for compiled interface calls
static int _nof_interface_calls; // total # of compiled calls
static int _nof_optimized_interface_calls; // total # of statically-bound interface calls
static int _nof_inlined_interface_calls; // total # of inlined interface calls
static int _nof_megamorphic_interface_calls;// total # of megamorphic interface calls
// stats for runtime exceptions
static int _nof_removable_exceptions; // total # of exceptions that could be replaced by branches due to inlining
public: // for compiler
static address nof_normal_calls_addr() { return (address)&_nof_normal_calls; }
static address nof_optimized_calls_addr() { return (address)&_nof_optimized_calls; }
static address nof_inlined_calls_addr() { return (address)&_nof_inlined_calls; }
static address nof_static_calls_addr() { return (address)&_nof_static_calls; }
static address nof_inlined_static_calls_addr() { return (address)&_nof_inlined_static_calls; }
static address nof_interface_calls_addr() { return (address)&_nof_interface_calls; }
static address nof_optimized_interface_calls_addr() { return (address)&_nof_optimized_interface_calls; }
static address nof_inlined_interface_calls_addr() { return (address)&_nof_inlined_interface_calls; }
static address nof_megamorphic_interface_calls_addr() { return (address)&_nof_megamorphic_interface_calls; }
static void print_call_statistics(int comp_total);
static void print_statistics();
static void print_ic_miss_histogram();
#endif // PRODUCT
};
// ---------------------------------------------------------------------------
// Implementation of AdapterHandlerLibrary
//
// This library manages argument marshaling adapters and native wrappers.
// There are 2 flavors of adapters: I2C and C2I.
//
// The I2C flavor takes a stock interpreted call setup, marshals the arguments
// for a Java-compiled call, and jumps to Rmethod-> code()->
// instructions_begin(). It is broken to call it without an nmethod assigned.
// The usual behavior is to lift any register arguments up out of the stack
// and possibly re-pack the extra arguments to be contigious. I2C adapters
// will save what the interpreter's stack pointer will be after arguments are
// popped, then adjust the interpreter's frame size to force alignment and
// possibly to repack the arguments. After re-packing, it jumps to the
// compiled code start. There are no safepoints in this adapter code and a GC
// cannot happen while marshaling is in progress.
//
// The C2I flavor takes a stock compiled call setup plus the target method in
// Rmethod, marshals the arguments for an interpreted call and jumps to
// Rmethod->_i2i_entry. On entry, the interpreted frame has not yet been
// setup. Compiled frames are fixed-size and the args are likely not in the
// right place. Hence all the args will likely be copied into the
// interpreter's frame, forcing that frame to grow. The compiled frame's
// outgoing stack args will be dead after the copy.
//
// Native wrappers, like adapters, marshal arguments. Unlike adapters they
// also perform an offical frame push & pop. They have a call to the native
// routine in their middles and end in a return (instead of ending in a jump).
// The native wrappers are stored in real nmethods instead of the BufferBlobs
// used by the adapters. The code generation happens here because it's very
// similar to what the adapters have to do.
class AdapterHandlerEntry : public CHeapObj {
private:
address _i2c_entry;
address _c2i_entry;
address _c2i_unverified_entry;
public:
// The name we give all buffer blobs
static const char* name;
AdapterHandlerEntry(address i2c_entry, address c2i_entry, address c2i_unverified_entry):
_i2c_entry(i2c_entry),
_c2i_entry(c2i_entry),
_c2i_unverified_entry(c2i_unverified_entry) {
}
address get_i2c_entry() { return _i2c_entry; }
address get_c2i_entry() { return _c2i_entry; }
address get_c2i_unverified_entry() { return _c2i_unverified_entry; }
void relocate(address new_base);
#ifndef PRODUCT
void print();
#endif /* PRODUCT */
};
class AdapterHandlerLibrary: public AllStatic {
private:
static BufferBlob* _buffer; // the temporary code buffer in CodeCache
static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
static GrowableArray<AdapterHandlerEntry*> * _handlers; // the corresponding handlers
enum {
AbstractMethodHandler = 1 // special handler for abstract methods
};
static BufferBlob* buffer_blob();
static void initialize();
static int get_create_adapter_index(methodHandle method);
static address get_i2c_entry( int index ) {
return get_entry(index)->get_i2c_entry();
}
static address get_c2i_entry( int index ) {
return get_entry(index)->get_c2i_entry();
}
static address get_c2i_unverified_entry( int index ) {
return get_entry(index)->get_c2i_unverified_entry();
}
public:
static AdapterHandlerEntry* get_entry( int index ) { return _handlers->at(index); }
static nmethod* create_native_wrapper(methodHandle method);
static AdapterHandlerEntry* get_adapter(methodHandle method) {
return get_entry(get_create_adapter_index(method));
}
#ifdef HAVE_DTRACE_H
static nmethod* create_dtrace_nmethod (methodHandle method);
#endif // HAVE_DTRACE_H
#ifndef PRODUCT
static void print_handler(CodeBlob* b);
static bool contains(CodeBlob* b);
#endif /* PRODUCT */
};