/* * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "asm/macroAssembler.hpp" #include "interpreter/bytecodeHistogram.hpp" #include "interpreter/interpreter.hpp" #include "interpreter/interpreterGenerator.hpp" #include "interpreter/interpreterRuntime.hpp" #include "interpreter/interp_masm.hpp" #include "interpreter/templateTable.hpp" #include "oops/arrayOop.hpp" #include "oops/methodData.hpp" #include "oops/method.hpp" #include "oops/oop.inline.hpp" #include "prims/jvmtiExport.hpp" #include "prims/jvmtiThreadState.hpp" #include "prims/methodHandles.hpp" #include "runtime/arguments.hpp" #include "runtime/deoptimization.hpp" #include "runtime/frame.inline.hpp" #include "runtime/sharedRuntime.hpp" #include "runtime/stubRoutines.hpp" #include "runtime/synchronizer.hpp" #include "runtime/timer.hpp" #include "runtime/vframeArray.hpp" #include "utilities/debug.hpp" #ifdef COMPILER1 #include "c1/c1_Runtime1.hpp" #endif #define __ _masm-> //------------------------------------------------------------------------------------------------------------------------ address AbstractInterpreterGenerator::generate_slow_signature_handler() { address entry = __ pc(); // rbx,: method // rcx: temporary // rdi: pointer to locals // rsp: end of copied parameters area __ mov(rcx, rsp); __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::slow_signature_handler), rbx, rdi, rcx); __ ret(0); return entry; } address InterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) { // rbx,: Method* // rcx: scratrch // rsi: sender sp if (!InlineIntrinsics) return NULL; // Generate a vanilla entry address entry_point = __ pc(); // These don't need a safepoint check because they aren't virtually // callable. We won't enter these intrinsics from compiled code. // If in the future we added an intrinsic which was virtually callable // we'd have to worry about how to safepoint so that this code is used. // mathematical functions inlined by compiler // (interpreter must provide identical implementation // in order to avoid monotonicity bugs when switching // from interpreter to compiler in the middle of some // computation) // // stack: [ ret adr ] <-- rsp // [ lo(arg) ] // [ hi(arg) ] // // Note: For JDK 1.2 StrictMath doesn't exist and Math.sin/cos/sqrt are // native methods. Interpreter::method_kind(...) does a check for // native methods first before checking for intrinsic methods and // thus will never select this entry point. Make sure it is not // called accidentally since the SharedRuntime entry points will // not work for JDK 1.2. // // We no longer need to check for JDK 1.2 since it's EOL'ed. // The following check existed in pre 1.6 implementation, // if (Universe::is_jdk12x_version()) { // __ should_not_reach_here(); // } // Universe::is_jdk12x_version() always returns false since // the JDK version is not yet determined when this method is called. // This method is called during interpreter_init() whereas // JDK version is only determined when universe2_init() is called. // Note: For JDK 1.3 StrictMath exists and Math.sin/cos/sqrt are // java methods. Interpreter::method_kind(...) will select // this entry point for the corresponding methods in JDK 1.3. // get argument __ fld_d(Address(rsp, 1*wordSize)); switch (kind) { case Interpreter::java_lang_math_sin : __ trigfunc('s'); break; case Interpreter::java_lang_math_cos : __ trigfunc('c'); break; case Interpreter::java_lang_math_tan : __ trigfunc('t'); break; case Interpreter::java_lang_math_sqrt: __ fsqrt(); break; case Interpreter::java_lang_math_abs: __ fabs(); break; case Interpreter::java_lang_math_log: __ flog(); // Store to stack to convert 80bit precision back to 64bits __ push_fTOS(); __ pop_fTOS(); break; case Interpreter::java_lang_math_log10: __ flog10(); // Store to stack to convert 80bit precision back to 64bits __ push_fTOS(); __ pop_fTOS(); break; case Interpreter::java_lang_math_pow: __ fld_d(Address(rsp, 3*wordSize)); // second argument __ pow_with_fallback(0); // Store to stack to convert 80bit precision back to 64bits __ push_fTOS(); __ pop_fTOS(); break; case Interpreter::java_lang_math_exp: __ subptr(rsp, 2*wordSize); __ fstp_d(Address(rsp, 0)); if (VM_Version::supports_sse2()) { __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::dexp()))); } else { __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::dexp))); } __ addptr(rsp, 2*wordSize); break; default : ShouldNotReachHere(); } // return double result in xmm0 for interpreter and compilers. if (UseSSE >= 2) { __ subptr(rsp, 2*wordSize); __ fstp_d(Address(rsp, 0)); __ movdbl(xmm0, Address(rsp, 0)); __ addptr(rsp, 2*wordSize); } // done, result in FPU ST(0) or XMM0 __ pop(rdi); // get return address __ mov(rsp, rsi); // set sp to sender sp __ jmp(rdi); return entry_point; } void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) { // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in // the days we had adapter frames. When we deoptimize a situation where a // compiled caller calls a compiled caller will have registers it expects // to survive the call to the callee. If we deoptimize the callee the only // way we can restore these registers is to have the oldest interpreter // frame that we create restore these values. That is what this routine // will accomplish. // At the moment we have modified c2 to not have any callee save registers // so this problem does not exist and this routine is just a place holder. assert(f->is_interpreted_frame(), "must be interpreted"); }