hotspot/src/share/vm/opto/runtime.cpp
author apangin
Thu, 04 Feb 2010 15:50:59 -0800
changeset 4764 d15bb22d4d39
parent 4761 bdb7375a1fee
parent 4754 8aef16f24e16
child 4898 b5bbb74def0b
permissions -rw-r--r--
Merge
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/*
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 * Copyright 1998-2010 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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#include "incls/_precompiled.incl"
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#include "incls/_runtime.cpp.incl"
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// For debugging purposes:
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//  To force FullGCALot inside a runtime function, add the following two lines
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//
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//  Universe::release_fullgc_alot_dummy();
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//  MarkSweep::invoke(0, "Debugging");
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//
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// At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000
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// Compiled code entry points
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address OptoRuntime::_new_instance_Java                           = NULL;
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address OptoRuntime::_new_array_Java                              = NULL;
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address OptoRuntime::_multianewarray2_Java                        = NULL;
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address OptoRuntime::_multianewarray3_Java                        = NULL;
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address OptoRuntime::_multianewarray4_Java                        = NULL;
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address OptoRuntime::_multianewarray5_Java                        = NULL;
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address OptoRuntime::_g1_wb_pre_Java                              = NULL;
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address OptoRuntime::_g1_wb_post_Java                             = NULL;
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address OptoRuntime::_vtable_must_compile_Java                    = NULL;
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address OptoRuntime::_complete_monitor_locking_Java               = NULL;
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address OptoRuntime::_rethrow_Java                                = NULL;
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address OptoRuntime::_slow_arraycopy_Java                         = NULL;
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address OptoRuntime::_register_finalizer_Java                     = NULL;
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# ifdef ENABLE_ZAP_DEAD_LOCALS
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address OptoRuntime::_zap_dead_Java_locals_Java                   = NULL;
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address OptoRuntime::_zap_dead_native_locals_Java                 = NULL;
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# endif
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// This should be called in an assertion at the start of OptoRuntime routines
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// which are entered from compiled code (all of them)
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#ifndef PRODUCT
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static bool check_compiled_frame(JavaThread* thread) {
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  assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code");
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#ifdef ASSERT
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  RegisterMap map(thread, false);
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  frame caller = thread->last_frame().sender(&map);
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  assert(caller.is_compiled_frame(), "not being called from compiled like code");
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#endif  /* ASSERT */
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  return true;
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}
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#endif
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#define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \
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  var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc)
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void OptoRuntime::generate(ciEnv* env) {
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  generate_exception_blob();
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  // Note: tls: Means fetching the return oop out of the thread-local storage
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  //
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  //   variable/name                       type-function-gen              , runtime method                  ,fncy_jp, tls,save_args,retpc
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  // -------------------------------------------------------------------------------------------------------------------------------
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  gen(env, _new_instance_Java              , new_instance_Type            , new_instance_C                  ,    0 , true , false, false);
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  gen(env, _new_array_Java                 , new_array_Type               , new_array_C                     ,    0 , true , false, false);
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  gen(env, _multianewarray2_Java           , multianewarray2_Type         , multianewarray2_C               ,    0 , true , false, false);
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  gen(env, _multianewarray3_Java           , multianewarray3_Type         , multianewarray3_C               ,    0 , true , false, false);
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  gen(env, _multianewarray4_Java           , multianewarray4_Type         , multianewarray4_C               ,    0 , true , false, false);
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  gen(env, _multianewarray5_Java           , multianewarray5_Type         , multianewarray5_C               ,    0 , true , false, false);
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  gen(env, _g1_wb_pre_Java                 , g1_wb_pre_Type               , SharedRuntime::g1_wb_pre        ,    0 , false, false, false);
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  gen(env, _g1_wb_post_Java                , g1_wb_post_Type              , SharedRuntime::g1_wb_post       ,    0 , false, false, false);
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  gen(env, _complete_monitor_locking_Java  , complete_monitor_enter_Type  , SharedRuntime::complete_monitor_locking_C      ,    0 , false, false, false);
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  gen(env, _rethrow_Java                   , rethrow_Type                 , rethrow_C                       ,    2 , true , false, true );
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  gen(env, _slow_arraycopy_Java            , slow_arraycopy_Type          , SharedRuntime::slow_arraycopy_C ,    0 , false, false, false);
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  gen(env, _register_finalizer_Java        , register_finalizer_Type      , register_finalizer              ,    0 , false, false, false);
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# ifdef ENABLE_ZAP_DEAD_LOCALS
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  gen(env, _zap_dead_Java_locals_Java      , zap_dead_locals_Type         , zap_dead_Java_locals_C          ,    0 , false, true , false );
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  gen(env, _zap_dead_native_locals_Java    , zap_dead_locals_Type         , zap_dead_native_locals_C        ,    0 , false, true , false );
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# endif
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}
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#undef gen
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// Helper method to do generation of RunTimeStub's
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address OptoRuntime::generate_stub( ciEnv* env,
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                                    TypeFunc_generator gen, address C_function,
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                                    const char *name, int is_fancy_jump,
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                                    bool pass_tls,
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                                    bool save_argument_registers,
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                                    bool return_pc ) {
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  ResourceMark rm;
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  Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc );
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  return  C.stub_entry_point();
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}
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const char* OptoRuntime::stub_name(address entry) {
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#ifndef PRODUCT
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  CodeBlob* cb = CodeCache::find_blob(entry);
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  RuntimeStub* rs =(RuntimeStub *)cb;
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  assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub");
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  return rs->name();
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#else
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  // Fast implementation for product mode (maybe it should be inlined too)
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  return "runtime stub";
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#endif
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}
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//=============================================================================
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// Opto compiler runtime routines
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//=============================================================================
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//=============================allocation======================================
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// We failed the fast-path allocation.  Now we need to do a scavenge or GC
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// and try allocation again.
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void OptoRuntime::new_store_pre_barrier(JavaThread* thread) {
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  // After any safepoint, just before going back to compiled code,
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  // we inform the GC that we will be doing initializing writes to
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  // this object in the future without emitting card-marks, so
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  // GC may take any compensating steps.
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  // NOTE: Keep this code consistent with GraphKit::store_barrier.
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  oop new_obj = thread->vm_result();
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  if (new_obj == NULL)  return;
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  assert(Universe::heap()->can_elide_tlab_store_barriers(),
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         "compiler must check this first");
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  // GC may decide to give back a safer copy of new_obj.
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  new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj);
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  thread->set_vm_result(new_obj);
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}
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// object allocation
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JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(klassOopDesc* klass, JavaThread* thread))
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  JRT_BLOCK;
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#ifndef PRODUCT
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  SharedRuntime::_new_instance_ctr++;         // new instance requires GC
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#endif
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  assert(check_compiled_frame(thread), "incorrect caller");
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  // These checks are cheap to make and support reflective allocation.
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  int lh = Klass::cast(klass)->layout_helper();
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  if (Klass::layout_helper_needs_slow_path(lh)
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      || !instanceKlass::cast(klass)->is_initialized()) {
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    KlassHandle kh(THREAD, klass);
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    kh->check_valid_for_instantiation(false, THREAD);
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    if (!HAS_PENDING_EXCEPTION) {
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      instanceKlass::cast(kh())->initialize(THREAD);
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    }
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    if (!HAS_PENDING_EXCEPTION) {
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      klass = kh();
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    } else {
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      klass = NULL;
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    }
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  }
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  if (klass != NULL) {
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    // Scavenge and allocate an instance.
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    oop result = instanceKlass::cast(klass)->allocate_instance(THREAD);
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    thread->set_vm_result(result);
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    // Pass oops back through thread local storage.  Our apparent type to Java
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    // is that we return an oop, but we can block on exit from this routine and
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    // a GC can trash the oop in C's return register.  The generated stub will
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    // fetch the oop from TLS after any possible GC.
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  }
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  deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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  JRT_BLOCK_END;
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  if (GraphKit::use_ReduceInitialCardMarks()) {
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    // inform GC that we won't do card marks for initializing writes.
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    new_store_pre_barrier(thread);
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  }
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JRT_END
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// array allocation
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JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(klassOopDesc* array_type, int len, JavaThread *thread))
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  JRT_BLOCK;
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#ifndef PRODUCT
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  SharedRuntime::_new_array_ctr++;            // new array requires GC
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#endif
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  assert(check_compiled_frame(thread), "incorrect caller");
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  // Scavenge and allocate an instance.
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  oop result;
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  if (Klass::cast(array_type)->oop_is_typeArray()) {
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    // The oopFactory likes to work with the element type.
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    // (We could bypass the oopFactory, since it doesn't add much value.)
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    BasicType elem_type = typeArrayKlass::cast(array_type)->element_type();
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    result = oopFactory::new_typeArray(elem_type, len, THREAD);
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  } else {
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    // Although the oopFactory likes to work with the elem_type,
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    // the compiler prefers the array_type, since it must already have
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    // that latter value in hand for the fast path.
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    klassOopDesc* elem_type = objArrayKlass::cast(array_type)->element_klass();
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    result = oopFactory::new_objArray(elem_type, len, THREAD);
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  }
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  // Pass oops back through thread local storage.  Our apparent type to Java
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  // is that we return an oop, but we can block on exit from this routine and
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  // a GC can trash the oop in C's return register.  The generated stub will
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  // fetch the oop from TLS after any possible GC.
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  deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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  thread->set_vm_result(result);
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  JRT_BLOCK_END;
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  if (GraphKit::use_ReduceInitialCardMarks()) {
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    // inform GC that we won't do card marks for initializing writes.
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    new_store_pre_barrier(thread);
1
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  }
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JRT_END
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// Note: multianewarray for one dimension is handled inline by GraphKit::new_array.
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// multianewarray for 2 dimensions
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JRT_ENTRY(void, OptoRuntime::multianewarray2_C(klassOopDesc* elem_type, int len1, int len2, JavaThread *thread))
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#ifndef PRODUCT
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  SharedRuntime::_multi2_ctr++;                // multianewarray for 1 dimension
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#endif
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  assert(check_compiled_frame(thread), "incorrect caller");
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  assert(oop(elem_type)->is_klass(), "not a class");
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  jint dims[2];
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  dims[0] = len1;
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  dims[1] = len2;
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  oop obj = arrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD);
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  deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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  thread->set_vm_result(obj);
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JRT_END
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// multianewarray for 3 dimensions
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JRT_ENTRY(void, OptoRuntime::multianewarray3_C(klassOopDesc* elem_type, int len1, int len2, int len3, JavaThread *thread))
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#ifndef PRODUCT
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  SharedRuntime::_multi3_ctr++;                // multianewarray for 1 dimension
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#endif
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  assert(check_compiled_frame(thread), "incorrect caller");
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  assert(oop(elem_type)->is_klass(), "not a class");
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  jint dims[3];
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  dims[0] = len1;
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  dims[1] = len2;
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  dims[2] = len3;
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  oop obj = arrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD);
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  deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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  thread->set_vm_result(obj);
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JRT_END
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// multianewarray for 4 dimensions
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JRT_ENTRY(void, OptoRuntime::multianewarray4_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread))
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#ifndef PRODUCT
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  SharedRuntime::_multi4_ctr++;                // multianewarray for 1 dimension
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#endif
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  assert(check_compiled_frame(thread), "incorrect caller");
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  assert(oop(elem_type)->is_klass(), "not a class");
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  jint dims[4];
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  dims[0] = len1;
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  dims[1] = len2;
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  dims[2] = len3;
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  dims[3] = len4;
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  oop obj = arrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD);
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  deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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  thread->set_vm_result(obj);
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JRT_END
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// multianewarray for 5 dimensions
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JRT_ENTRY(void, OptoRuntime::multianewarray5_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread))
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#ifndef PRODUCT
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  SharedRuntime::_multi5_ctr++;                // multianewarray for 1 dimension
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#endif
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  assert(check_compiled_frame(thread), "incorrect caller");
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  assert(oop(elem_type)->is_klass(), "not a class");
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  jint dims[5];
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  dims[0] = len1;
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  dims[1] = len2;
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  dims[2] = len3;
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  dims[3] = len4;
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  dims[4] = len5;
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  oop obj = arrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD);
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  deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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  thread->set_vm_result(obj);
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JRT_END
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const TypeFunc *OptoRuntime::new_instance_Type() {
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  // create input type (domain)
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  const Type **fields = TypeTuple::fields(1);
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  fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated
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  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
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  // create result type (range)
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  fields = TypeTuple::fields(1);
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  fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
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  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
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  return TypeFunc::make(domain, range);
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}
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const TypeFunc *OptoRuntime::athrow_Type() {
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  // create input type (domain)
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  const Type **fields = TypeTuple::fields(1);
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  fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated
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  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
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  // create result type (range)
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  fields = TypeTuple::fields(0);
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  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
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  return TypeFunc::make(domain, range);
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}
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const TypeFunc *OptoRuntime::new_array_Type() {
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  // create input type (domain)
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  const Type **fields = TypeTuple::fields(2);
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  fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;   // element klass
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  fields[TypeFunc::Parms+1] = TypeInt::INT;       // array size
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  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
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  // create result type (range)
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  fields = TypeTuple::fields(1);
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  fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
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  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
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  return TypeFunc::make(domain, range);
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}
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const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) {
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  // create input type (domain)
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  const int nargs = ndim + 1;
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  const Type **fields = TypeTuple::fields(nargs);
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  fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;   // element klass
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  for( int i = 1; i < nargs; i++ )
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    fields[TypeFunc::Parms + i] = TypeInt::INT;       // array size
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  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields);
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  // create result type (range)
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  fields = TypeTuple::fields(1);
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  fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
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  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
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   374
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   375
  return TypeFunc::make(domain, range);
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   376
}
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   377
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   378
const TypeFunc *OptoRuntime::multianewarray2_Type() {
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   379
  return multianewarray_Type(2);
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   380
}
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   381
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   382
const TypeFunc *OptoRuntime::multianewarray3_Type() {
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   383
  return multianewarray_Type(3);
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   384
}
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   385
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   386
const TypeFunc *OptoRuntime::multianewarray4_Type() {
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   387
  return multianewarray_Type(4);
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   388
}
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   389
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   390
const TypeFunc *OptoRuntime::multianewarray5_Type() {
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   391
  return multianewarray_Type(5);
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   392
}
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   393
1374
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   394
const TypeFunc *OptoRuntime::g1_wb_pre_Type() {
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   395
  const Type **fields = TypeTuple::fields(2);
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   396
  fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value
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   397
  fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread
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   398
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
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diff changeset
   399
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   400
  // create result type (range)
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   401
  fields = TypeTuple::fields(0);
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   402
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
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diff changeset
   403
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diff changeset
   404
  return TypeFunc::make(domain, range);
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diff changeset
   405
}
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diff changeset
   406
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   407
const TypeFunc *OptoRuntime::g1_wb_post_Type() {
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diff changeset
   408
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   409
  const Type **fields = TypeTuple::fields(2);
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   410
  fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL;  // Card addr
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   411
  fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL;  // thread
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   412
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
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   413
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   414
  // create result type (range)
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   415
  fields = TypeTuple::fields(0);
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   416
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
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diff changeset
   417
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   418
  return TypeFunc::make(domain, range);
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   419
}
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   420
1
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const TypeFunc *OptoRuntime::uncommon_trap_Type() {
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   422
  // create input type (domain)
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   423
  const Type **fields = TypeTuple::fields(1);
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   424
  // symbolOop name of class to be loaded
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   425
  fields[TypeFunc::Parms+0] = TypeInt::INT;
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   426
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
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   427
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diff changeset
   428
  // create result type (range)
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diff changeset
   429
  fields = TypeTuple::fields(0);
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   430
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
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   431
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   432
  return TypeFunc::make(domain, range);
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   433
}
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   434
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   435
# ifdef ENABLE_ZAP_DEAD_LOCALS
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   436
// Type used for stub generation for zap_dead_locals.
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   437
// No inputs or outputs
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   438
const TypeFunc *OptoRuntime::zap_dead_locals_Type() {
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   439
  // create input type (domain)
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diff changeset
   440
  const Type **fields = TypeTuple::fields(0);
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   441
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields);
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   442
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diff changeset
   443
  // create result type (range)
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diff changeset
   444
  fields = TypeTuple::fields(0);
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   445
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields);
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   446
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diff changeset
   447
  return TypeFunc::make(domain,range);
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   448
}
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   449
# endif
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   450
489c9b5090e2 Initial load
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   451
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   452
//-----------------------------------------------------------------------------
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   453
// Monitor Handling
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   454
const TypeFunc *OptoRuntime::complete_monitor_enter_Type() {
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   455
  // create input type (domain)
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   456
  const Type **fields = TypeTuple::fields(2);
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   457
  fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // Object to be Locked
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   458
  fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM;   // Address of stack location for lock
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   459
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
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diff changeset
   460
489c9b5090e2 Initial load
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diff changeset
   461
  // create result type (range)
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diff changeset
   462
  fields = TypeTuple::fields(0);
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diff changeset
   463
489c9b5090e2 Initial load
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diff changeset
   464
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
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   465
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diff changeset
   466
  return TypeFunc::make(domain,range);
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   467
}
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diff changeset
   468
489c9b5090e2 Initial load
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   469
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   470
//-----------------------------------------------------------------------------
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   471
const TypeFunc *OptoRuntime::complete_monitor_exit_Type() {
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diff changeset
   472
  // create input type (domain)
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diff changeset
   473
  const Type **fields = TypeTuple::fields(2);
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   474
  fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // Object to be Locked
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   475
  fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM;   // Address of stack location for lock
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diff changeset
   476
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
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diff changeset
   477
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diff changeset
   478
  // create result type (range)
489c9b5090e2 Initial load
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diff changeset
   479
  fields = TypeTuple::fields(0);
489c9b5090e2 Initial load
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diff changeset
   480
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diff changeset
   481
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
489c9b5090e2 Initial load
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diff changeset
   482
489c9b5090e2 Initial load
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diff changeset
   483
  return TypeFunc::make(domain,range);
489c9b5090e2 Initial load
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diff changeset
   484
}
489c9b5090e2 Initial load
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diff changeset
   485
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diff changeset
   486
const TypeFunc* OptoRuntime::flush_windows_Type() {
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diff changeset
   487
  // create input type (domain)
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diff changeset
   488
  const Type** fields = TypeTuple::fields(1);
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parents:
diff changeset
   489
  fields[TypeFunc::Parms+0] = NULL; // void
489c9b5090e2 Initial load
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diff changeset
   490
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields);
489c9b5090e2 Initial load
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diff changeset
   491
489c9b5090e2 Initial load
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parents:
diff changeset
   492
  // create result type
489c9b5090e2 Initial load
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parents:
diff changeset
   493
  fields = TypeTuple::fields(1);
489c9b5090e2 Initial load
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diff changeset
   494
  fields[TypeFunc::Parms+0] = NULL; // void
489c9b5090e2 Initial load
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diff changeset
   495
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
489c9b5090e2 Initial load
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parents:
diff changeset
   496
489c9b5090e2 Initial load
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parents:
diff changeset
   497
  return TypeFunc::make(domain, range);
489c9b5090e2 Initial load
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diff changeset
   498
}
489c9b5090e2 Initial load
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diff changeset
   499
489c9b5090e2 Initial load
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diff changeset
   500
const TypeFunc* OptoRuntime::l2f_Type() {
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parents:
diff changeset
   501
  // create input type (domain)
489c9b5090e2 Initial load
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parents:
diff changeset
   502
  const Type **fields = TypeTuple::fields(2);
489c9b5090e2 Initial load
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parents:
diff changeset
   503
  fields[TypeFunc::Parms+0] = TypeLong::LONG;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
  fields[TypeFunc::Parms+1] = Type::HALF;
489c9b5090e2 Initial load
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diff changeset
   505
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
489c9b5090e2 Initial load
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parents:
diff changeset
   506
489c9b5090e2 Initial load
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parents:
diff changeset
   507
  // create result type (range)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
  fields = TypeTuple::fields(1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
  fields[TypeFunc::Parms+0] = Type::FLOAT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
489c9b5090e2 Initial load
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parents:
diff changeset
   511
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
  return TypeFunc::make(domain, range);
489c9b5090e2 Initial load
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diff changeset
   513
}
489c9b5090e2 Initial load
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diff changeset
   514
489c9b5090e2 Initial load
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   515
const TypeFunc* OptoRuntime::modf_Type() {
489c9b5090e2 Initial load
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diff changeset
   516
  const Type **fields = TypeTuple::fields(2);
489c9b5090e2 Initial load
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parents:
diff changeset
   517
  fields[TypeFunc::Parms+0] = Type::FLOAT;
489c9b5090e2 Initial load
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diff changeset
   518
  fields[TypeFunc::Parms+1] = Type::FLOAT;
489c9b5090e2 Initial load
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diff changeset
   519
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
489c9b5090e2 Initial load
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parents:
diff changeset
   520
489c9b5090e2 Initial load
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parents:
diff changeset
   521
  // create result type (range)
489c9b5090e2 Initial load
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parents:
diff changeset
   522
  fields = TypeTuple::fields(1);
489c9b5090e2 Initial load
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parents:
diff changeset
   523
  fields[TypeFunc::Parms+0] = Type::FLOAT;
489c9b5090e2 Initial load
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parents:
diff changeset
   524
489c9b5090e2 Initial load
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parents:
diff changeset
   525
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
489c9b5090e2 Initial load
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parents:
diff changeset
   526
489c9b5090e2 Initial load
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parents:
diff changeset
   527
  return TypeFunc::make(domain, range);
489c9b5090e2 Initial load
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diff changeset
   528
}
489c9b5090e2 Initial load
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diff changeset
   529
489c9b5090e2 Initial load
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parents:
diff changeset
   530
const TypeFunc *OptoRuntime::Math_D_D_Type() {
489c9b5090e2 Initial load
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parents:
diff changeset
   531
  // create input type (domain)
489c9b5090e2 Initial load
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parents:
diff changeset
   532
  const Type **fields = TypeTuple::fields(2);
489c9b5090e2 Initial load
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parents:
diff changeset
   533
  // symbolOop name of class to be loaded
489c9b5090e2 Initial load
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parents:
diff changeset
   534
  fields[TypeFunc::Parms+0] = Type::DOUBLE;
489c9b5090e2 Initial load
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parents:
diff changeset
   535
  fields[TypeFunc::Parms+1] = Type::HALF;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
489c9b5090e2 Initial load
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parents:
diff changeset
   537
489c9b5090e2 Initial load
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parents:
diff changeset
   538
  // create result type (range)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
  fields = TypeTuple::fields(2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
  fields[TypeFunc::Parms+0] = Type::DOUBLE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
  fields[TypeFunc::Parms+1] = Type::HALF;
489c9b5090e2 Initial load
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parents:
diff changeset
   542
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
489c9b5090e2 Initial load
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parents:
diff changeset
   543
489c9b5090e2 Initial load
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parents:
diff changeset
   544
  return TypeFunc::make(domain, range);
489c9b5090e2 Initial load
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parents:
diff changeset
   545
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
489c9b5090e2 Initial load
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parents:
diff changeset
   547
const TypeFunc* OptoRuntime::Math_DD_D_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
  const Type **fields = TypeTuple::fields(4);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
  fields[TypeFunc::Parms+0] = Type::DOUBLE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
  fields[TypeFunc::Parms+1] = Type::HALF;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
  fields[TypeFunc::Parms+2] = Type::DOUBLE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
  fields[TypeFunc::Parms+3] = Type::HALF;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
  // create result type (range)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
  fields = TypeTuple::fields(2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
  fields[TypeFunc::Parms+0] = Type::DOUBLE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
  fields[TypeFunc::Parms+1] = Type::HALF;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
  return TypeFunc::make(domain, range);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
489c9b5090e2 Initial load
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parents:
diff changeset
   564
//-------------- currentTimeMillis
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
const TypeFunc* OptoRuntime::current_time_millis_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
  // create input type (domain)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
  const Type **fields = TypeTuple::fields(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
  // create result type (range)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  fields = TypeTuple::fields(2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
  fields[TypeFunc::Parms+0] = TypeLong::LONG;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  fields[TypeFunc::Parms+1] = Type::HALF;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
  return TypeFunc::make(domain, range);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
// arraycopy stub variations:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
enum ArrayCopyType {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
  ac_fast,                      // void(ptr, ptr, size_t)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
  ac_checkcast,                 //  int(ptr, ptr, size_t, size_t, ptr)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
  ac_slow,                      // void(ptr, int, ptr, int, int)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  ac_generic                    //  int(ptr, int, ptr, int, int)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
  // create input type (domain)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
  int num_args      = (act == ac_fast ? 3 : 5);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
  int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
  int argcnt = num_args;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
  LP64_ONLY(argcnt += num_size_args); // halfwords for lengths
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
  const Type** fields = TypeTuple::fields(argcnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
  int argp = TypeFunc::Parms;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
  fields[argp++] = TypePtr::NOTNULL;    // src
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
  if (num_size_args == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
    fields[argp++] = TypeInt::INT;      // src_pos
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
  fields[argp++] = TypePtr::NOTNULL;    // dest
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
  if (num_size_args == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
    fields[argp++] = TypeInt::INT;      // dest_pos
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
    fields[argp++] = TypeInt::INT;      // length
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
  while (num_size_args-- > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
    fields[argp++] = TypeX_X;               // size in whatevers (size_t)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
    LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
  if (act == ac_checkcast) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
    fields[argp++] = TypePtr::NOTNULL;  // super_klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
  assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
  const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
  // create result type if needed
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
  int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
  fields = TypeTuple::fields(1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
  if (retcnt == 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
    fields[TypeFunc::Parms+0] = NULL; // void
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
    fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
  const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
  return TypeFunc::make(domain, range);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
const TypeFunc* OptoRuntime::fast_arraycopy_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
  // This signature is simple:  Two base pointers and a size_t.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
  return make_arraycopy_Type(ac_fast);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
  // An extension of fast_arraycopy_Type which adds type checking.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
  return make_arraycopy_Type(ac_checkcast);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
const TypeFunc* OptoRuntime::slow_arraycopy_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
  // This signature is exactly the same as System.arraycopy.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
  // There are no intptr_t (int/long) arguments.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
  return make_arraycopy_Type(ac_slow);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
const TypeFunc* OptoRuntime::generic_arraycopy_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
  // This signature is like System.arraycopy, except that it returns status.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
  return make_arraycopy_Type(ac_generic);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
//------------- Interpreter state access for on stack replacement
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
const TypeFunc* OptoRuntime::osr_end_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
  // create input type (domain)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
  const Type **fields = TypeTuple::fields(1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
  fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
  // create result type
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
  fields = TypeTuple::fields(1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
  // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
  fields[TypeFunc::Parms+0] = NULL; // void
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
  return TypeFunc::make(domain, range);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
//-------------- methodData update helpers
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
const TypeFunc* OptoRuntime::profile_receiver_type_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
  // create input type (domain)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
  const Type **fields = TypeTuple::fields(2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
  fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL;    // methodData pointer
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
  fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM;    // receiver oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
  // create result type
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
  fields = TypeTuple::fields(1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
  fields[TypeFunc::Parms+0] = NULL; // void
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
  return TypeFunc::make(domain,range);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
  if (receiver == NULL) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
  klassOop receiver_klass = receiver->klass();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
  intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
  int empty_row = -1;           // free row, if any is encountered
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
  // ReceiverTypeData* vc = new ReceiverTypeData(mdp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
  for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
    // if (vc->receiver(row) == receiver_klass)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
    int receiver_off = ReceiverTypeData::receiver_cell_index(row);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
    intptr_t row_recv = *(mdp + receiver_off);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
    if (row_recv == (intptr_t) receiver_klass) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
      // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
      int count_off = ReceiverTypeData::receiver_count_cell_index(row);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
      *(mdp + count_off) += DataLayout::counter_increment;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
      return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
    } else if (row_recv == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
      // else if (vc->receiver(row) == NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
      empty_row = (int) row;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
  if (empty_row != -1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
    int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
    // vc->set_receiver(empty_row, receiver_klass);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
    *(mdp + receiver_off) = (intptr_t) receiver_klass;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
    // vc->set_receiver_count(empty_row, DataLayout::counter_increment);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
    int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
    *(mdp + count_off) = DataLayout::counter_increment;
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4637
diff changeset
   709
  } else {
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4637
diff changeset
   710
    // Receiver did not match any saved receiver and there is no empty row for it.
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4637
diff changeset
   711
    // Increment total counter to indicate polimorphic case.
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4637
diff changeset
   712
    intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset()));
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4637
diff changeset
   713
    *count_p += DataLayout::counter_increment;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
//-----------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
// implicit exception support.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
static void report_null_exception_in_code_cache(address exception_pc) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
  CodeBlob* n = CodeCache::find_blob(exception_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
  if (n != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
    tty->print_cr("#");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
    tty->print_cr("# HotSpot Runtime Error, null exception in generated code");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
    tty->print_cr("#");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
    tty->print_cr("# pc where exception happened = " INTPTR_FORMAT, exception_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
    if (n->is_nmethod()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
      methodOop method = ((nmethod*)n)->method();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
      tty->print_cr("# Method where it happened %s.%s ", Klass::cast(method->method_holder())->name()->as_C_string(), method->name()->as_C_string());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
      tty->print_cr("#");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
      if (ShowMessageBoxOnError && UpdateHotSpotCompilerFileOnError) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
        const char* title    = "HotSpot Runtime Error";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
        const char* question = "Do you want to exclude compilation of this method in future runs?";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
        if (os::message_box(title, question)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
          CompilerOracle::append_comment_to_file("");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
          CompilerOracle::append_comment_to_file("Null exception in compiled code resulted in the following exclude");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
          CompilerOracle::append_comment_to_file("");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
          CompilerOracle::append_exclude_to_file(method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
          tty->print_cr("#");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
          tty->print_cr("# %s has been updated to exclude the specified method", CompileCommandFile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
          tty->print_cr("#");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
      fatal("Implicit null exception happened in compiled method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
      n->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
      fatal("Implicit null exception happened in generated stub");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
  fatal("Implicit null exception at wrong place");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
//-------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
// register policy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
  assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
  switch (register_save_policy[reg]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
    case 'C': return false; //SOC
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
    case 'E': return true ; //SOE
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
    case 'N': return false; //NS
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
    case 'A': return false; //AS
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
  ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
//-----------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
// Exceptions
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
// The method is an entry that is always called by a C++ method not
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
// directly from compiled code. Compiled code will call the C++ method following.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
// We can't allow async exception to be installed during  exception processing.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
  // Do not confuse exception_oop with pending_exception. The exception_oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
  // is only used to pass arguments into the method. Not for general
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
  // exception handling.  DO NOT CHANGE IT to use pending_exception, since
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
  // the runtime stubs checks this on exit.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
  assert(thread->exception_oop() != NULL, "exception oop is found");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
  address handler_address = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
  Handle exception(thread, thread->exception_oop());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
  if (TraceExceptions) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
    trace_exception(exception(), thread->exception_pc(), "");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
  // for AbortVMOnException flag
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
  NOT_PRODUCT(Exceptions::debug_check_abort(exception));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
  #ifdef ASSERT
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4564
diff changeset
   798
    if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
      // should throw an exception here
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
      ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
  #endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
  // new exception handling: this method is entered only from adapters
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
  // exceptions from compiled java methods are handled in compiled code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
  // using rethrow node
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
  address pc = thread->exception_pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
  nm = CodeCache::find_nmethod(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
  assert(nm != NULL, "No NMethod found");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
  if (nm->is_native_method()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
    fatal("Native mathod should not have path to exception handling");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
    // we are switching to old paradigm: search for exception handler in caller_frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
    // instead in exception handler of caller_frame.sender()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
4761
bdb7375a1fee 6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents: 4637
diff changeset
   818
    if (JvmtiExport::can_post_on_exceptions()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
      // "Full-speed catching" is not necessary here,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
      // since we're notifying the VM on every catch.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
      // Force deoptimization and the rest of the lookup
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
      // will be fine.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
      deoptimize_caller_frame(thread, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
    // Check the stack guard pages.  If enabled, look for handler in this frame;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
    // otherwise, forcibly unwind the frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
    // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
    bool force_unwind = !thread->reguard_stack();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
    bool deopting = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
    if (nm->is_deopt_pc(pc)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
      deopting = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
      RegisterMap map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
      frame deoptee = thread->last_frame().sender(&map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
      assert(deoptee.is_deoptimized_frame(), "must be deopted");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
      // Adjust the pc back to the original throwing pc
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
      pc = deoptee.pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
    // If we are forcing an unwind because of stack overflow then deopt is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
    // irrelevant sice we are throwing the frame away anyway.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
    if (deopting && !force_unwind) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
      handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
      handler_address =
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
        force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
      if (handler_address == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
        handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
        assert (handler_address != NULL, "must have compiled handler");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
        // Update the exception cache only when the unwind was not forced.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
        if (!force_unwind) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
          nm->add_handler_for_exception_and_pc(exception,pc,handler_address);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
        assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
    thread->set_exception_pc(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
    thread->set_exception_handler_pc(handler_address);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
    thread->set_exception_stack_size(0);
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4030
diff changeset
   866
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4030
diff changeset
   867
    // Check if the exception PC is a MethodHandle call.
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4030
diff changeset
   868
    thread->set_is_method_handle_exception(nm->is_method_handle_return(pc));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
  // Restore correct return pc.  Was saved above.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
  thread->set_exception_oop(exception());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
  return handler_address;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
// We are entering here from exception_blob
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
// If there is a compiled exception handler in this method, we will continue there;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
// otherwise we will unwind the stack and continue at the caller of top frame method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
// Note we enter without the usual JRT wrapper. We will call a helper routine that
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
// will do the normal VM entry. We do it this way so that we can see if the nmethod
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
// we looked up the handler for has been deoptimized in the meantime. If it has been
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
// we must not use the handler and instread return the deopt blob.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
address OptoRuntime::handle_exception_C(JavaThread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
// We are in Java not VM and in debug mode we have a NoHandleMark
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
  SharedRuntime::_find_handler_ctr++;          // find exception handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   891
  debug_only(NoHandleMark __hm;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
  nmethod* nm = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
  address handler_address = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
    // Enter the VM
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
    ResetNoHandleMark rnhm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
    handler_address = handle_exception_C_helper(thread, nm);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
489c9b5090e2 Initial load
duke
parents:
diff changeset
   901
  // Back in java: Use no oops, DON'T safepoint
489c9b5090e2 Initial load
duke
parents:
diff changeset
   902
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
  // Now check to see if the handler we are returning is in a now
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
  // deoptimized frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
  if (nm != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
    RegisterMap map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
    frame caller = thread->last_frame().sender(&map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
    assert(caller.is_compiled_frame(), "must be");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
#endif // ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
    if (caller.is_deoptimized_frame()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
      handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
  return handler_address;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
//------------------------------rethrow----------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
// We get here after compiled code has executed a 'RethrowNode'.  The callee
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
// is either throwing or rethrowing an exception.  The callee-save registers
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
// have been restored, synchronized objects have been unlocked and the callee
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
// stack frame has been removed.  The return address was passed in.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
// Exception oop is passed as the 1st argument.  This routine is then called
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
// from the stub.  On exit, we know where to jump in the caller's code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
// After this C code exits, the stub will pop his frame and end in a jump
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
// (instead of a return).  We enter the caller's default handler.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
// This must be JRT_LEAF:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
//     - caller will not change its state as we cannot block on exit,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
//       therefore raw_exception_handler_for_return_address is all it takes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
//       to handle deoptimized blobs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
// However, there needs to be a safepoint check in the middle!  So compiled
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
// safepoints are completely watertight.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
// Thus, it cannot be a leaf since it contains the No_GC_Verifier.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
// *THIS IS NOT RECOMMENDED PROGRAMMING STYLE*
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
  SharedRuntime::_rethrow_ctr++;               // count rethrows
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
  assert (exception != NULL, "should have thrown a NULLPointerException");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
#ifdef ASSERT
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4564
diff changeset
   947
  if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
    // should throw an exception here
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
    ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
  thread->set_vm_result(exception);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
  // Frame not compiled (handles deoptimization blob)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
  return SharedRuntime::raw_exception_handler_for_return_address(ret_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
const TypeFunc *OptoRuntime::rethrow_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
  // create input type (domain)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
  const Type **fields = TypeTuple::fields(1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   962
  fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
  // create result type (range)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
  fields = TypeTuple::fields(1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
  fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
  return TypeFunc::make(domain, range);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
  // Deoptimize frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
  if (doit) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
    // Called from within the owner thread, so no need for safepoint
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
    RegisterMap reg_map(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
    frame stub_frame = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
    assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
    frame caller_frame = stub_frame.sender(&reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
4761
bdb7375a1fee 6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents: 4637
diff changeset
   983
    // bypass VM_DeoptimizeFrame and deoptimize the frame directly
bdb7375a1fee 6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents: 4637
diff changeset
   984
    Deoptimization::deoptimize_frame(thread, caller_frame.id());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
const TypeFunc *OptoRuntime::register_finalizer_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
  // create input type (domain)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
  const Type **fields = TypeTuple::fields(1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
  fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // oop;          Receiver
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
  // // The JavaThread* is passed to each routine as the last argument
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
  // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL;  // JavaThread *; Executing thread
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
  // create result type (range)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
  fields = TypeTuple::fields(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
  return TypeFunc::make(domain,range);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
//-----------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
// Dtrace support.  entry and exit probes have the same signature
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
  // create input type (domain)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
  const Type **fields = TypeTuple::fields(2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
  fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
  fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;  // methodOop;    Method we are entering
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
  // create result type (range)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
  fields = TypeTuple::fields(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
  return TypeFunc::make(domain,range);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
  // create input type (domain)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
  const Type **fields = TypeTuple::fields(2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
  fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
  fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL;  // oop;    newly allocated object
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
  const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
  // create result type (range)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
  fields = TypeTuple::fields(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
  const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
  return TypeFunc::make(domain,range);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
  assert(obj->is_oop(), "must be a valid oop");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
  assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
  instanceKlass::register_finalizer(instanceOop(obj), CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
//-----------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
NamedCounter * volatile OptoRuntime::_named_counters = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
// dump the collected NamedCounters.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1052
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
void OptoRuntime::print_named_counters() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
  int total_lock_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
  int eliminated_lock_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
  NamedCounter* c = _named_counters;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
  while (c) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
    if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
      int count = c->count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
      if (count > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
        bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
        if (Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
          tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : "");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
        total_lock_count += count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
        if (eliminated) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
          eliminated_lock_count += count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
    } else if (c->tag() == NamedCounter::BiasedLockingCounter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
      BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
      if (blc->nonzero()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1074
        tty->print_cr("%s", c->name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1075
        blc->print_on(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1076
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1077
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1078
    c = c->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1079
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1080
  if (total_lock_count > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1081
    tty->print_cr("dynamic locks: %d", total_lock_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1082
    if (eliminated_lock_count) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
      tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
                    (int)(eliminated_lock_count * 100.0 / total_lock_count));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1087
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1089
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
//  Allocate a new NamedCounter.  The JVMState is used to generate the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1091
//  name which consists of method@line for the inlining tree.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1092
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1093
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
  int max_depth = youngest_jvms->depth();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
  // Visit scopes from youngest to oldest.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
  bool first = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
  stringStream st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
  for (int depth = max_depth; depth >= 1; depth--) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
    JVMState* jvms = youngest_jvms->of_depth(depth);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
    ciMethod* m = jvms->has_method() ? jvms->method() : NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
    if (!first) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
      st.print(" ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
      first = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
    int bci = jvms->bci();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
    if (bci < 0) bci = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
    st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
    // To print linenumbers instead of bci use: m->line_number_from_bci(bci)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
  NamedCounter* c;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
  if (tag == NamedCounter::BiasedLockingCounter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
    c = new BiasedLockingNamedCounter(strdup(st.as_string()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
    c = new NamedCounter(strdup(st.as_string()), tag);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
  // atomically add the new counter to the head of the list.  We only
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
  // add counters so this is safe.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
  NamedCounter* head;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
  do {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
    head = _named_counters;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
    c->set_next(head);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
  } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
  return c;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1130
//-----------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1131
// Non-product code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
int trace_exception_counter = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
static void trace_exception(oop exception_oop, address exception_pc, const char* msg) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
  ttyLocker ttyl;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
  trace_exception_counter++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
  tty->print("%d [Exception (%s): ", trace_exception_counter, msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
  exception_oop->print_value();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
  tty->print(" in ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1141
  CodeBlob* blob = CodeCache::find_blob(exception_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
  if (blob->is_nmethod()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
    ((nmethod*)blob)->method()->print_value();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
  } else if (blob->is_runtime_stub()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
    tty->print("<runtime-stub>");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
    tty->print("<unknown>");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
  tty->print(" at " INTPTR_FORMAT,  exception_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
  tty->print_cr("]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
#endif  // PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
# ifdef ENABLE_ZAP_DEAD_LOCALS
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
// Called from call sites in compiled code with oop maps (actually safepoints)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
// Zaps dead locals in first java frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
// Is entry because may need to lock to generate oop maps
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
// Currently, only used for compiler frames, but someday may be used
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
// for interpreter frames, too.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
int OptoRuntime::ZapDeadCompiledLocals_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1164
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
// avoid pointers to member funcs with these helpers
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1166
static bool is_java_frame(  frame* f) { return f->is_java_frame();   }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1167
static bool is_native_frame(frame* f) { return f->is_native_frame(); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1168
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1169
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
                                                bool (*is_this_the_right_frame_to_zap)(frame*)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
  assert(JavaThread::current() == thread, "is this needed?");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
  if ( !ZapDeadCompiledLocals )  return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
  bool skip = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
       if ( ZapDeadCompiledLocalsFirst  ==  0  ) ; // nothing special
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
  else if ( ZapDeadCompiledLocalsFirst  >  ZapDeadCompiledLocals_count )  skip = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
  else if ( ZapDeadCompiledLocalsFirst  == ZapDeadCompiledLocals_count )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
    warning("starting zapping after skipping");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
       if ( ZapDeadCompiledLocalsLast  ==  -1  ) ; // nothing special
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
  else if ( ZapDeadCompiledLocalsLast  <   ZapDeadCompiledLocals_count )  skip = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
  else if ( ZapDeadCompiledLocalsLast  ==  ZapDeadCompiledLocals_count )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
    warning("about to zap last zap");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
  ++ZapDeadCompiledLocals_count; // counts skipped zaps, too
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
  if ( skip )  return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
  // find java frame and zap it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
  for (StackFrameStream sfs(thread);  !sfs.is_done();  sfs.next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
    if (is_this_the_right_frame_to_zap(sfs.current()) ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
      sfs.current()->zap_dead_locals(thread, sfs.register_map());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
      return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
  warning("no frame found to zap in zap_dead_Java_locals_C");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
  zap_dead_java_or_native_locals(thread, is_java_frame);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
// The following does not work because for one thing, the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
// thread state is wrong; it expects java, but it is native.
2131
98f9cef66a34 6810672: Comment typos
twisti
parents: 1374
diff changeset
  1209
// Also, the invariants in a native stub are different and
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
// I'm not sure it is safe to have a MachCalRuntimeDirectNode
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
// in there.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
// So for now, we do not zap in native stubs.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
  zap_dead_java_or_native_locals(thread, is_native_frame);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
# endif