--- /dev/null 2015-10-08 07:24:45.000000000 -1000 +++ new/src/cpu/sparc/vm/jvmciCodeInstaller_sparc.cpp 2015-10-08 07:24:45.000000000 -1000 @@ -0,0 +1,186 @@ +/* + * Copyright (c) 2013, 2015, 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 "jvmci/jvmciCodeInstaller.hpp" +#include "jvmci/jvmciRuntime.hpp" +#include "jvmci/jvmciCompilerToVM.hpp" +#include "jvmci/jvmciJavaClasses.hpp" +#include "oops/oop.inline.hpp" +#include "runtime/sharedRuntime.hpp" +#include "vmreg_sparc.inline.hpp" + +jint CodeInstaller::pd_next_offset(NativeInstruction* inst, jint pc_offset, oop method) { + if (inst->is_call() || inst->is_jump()) { + return pc_offset + NativeCall::instruction_size; + } else if (inst->is_call_reg()) { + return pc_offset + NativeCallReg::instruction_size; + } else if (inst->is_sethi()) { + return pc_offset + NativeFarCall::instruction_size; + } else { + fatal("unsupported type of instruction for call site"); + return 0; + } +} + +void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle& constant) { + address pc = _instructions->start() + pc_offset; + Handle obj = HotSpotObjectConstantImpl::object(constant); + jobject value = JNIHandles::make_local(obj()); + if (HotSpotObjectConstantImpl::compressed(constant)) { +#ifdef _LP64 + int oop_index = _oop_recorder->find_index(value); + RelocationHolder rspec = oop_Relocation::spec(oop_index); + _instructions->relocate(pc, rspec, 1); +#else + fatal("compressed oop on 32bit"); +#endif + } else { + NativeMovConstReg* move = nativeMovConstReg_at(pc); + move->set_data((intptr_t) value); + + // We need two relocations: one on the sethi and one on the add. + int oop_index = _oop_recorder->find_index(value); + RelocationHolder rspec = oop_Relocation::spec(oop_index); + _instructions->relocate(pc + NativeMovConstReg::sethi_offset, rspec); + _instructions->relocate(pc + NativeMovConstReg::add_offset, rspec); + } +} + +void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) { + address pc = _instructions->start() + pc_offset; + NativeInstruction* inst = nativeInstruction_at(pc); + NativeInstruction* inst1 = nativeInstruction_at(pc + 4); + if(inst->is_sethi() && inst1->is_nop()) { + address const_start = _constants->start(); + address dest = _constants->start() + data_offset; + if(_constants_size > 0) { + _instructions->relocate(pc + NativeMovConstReg::sethi_offset, internal_word_Relocation::spec((address) dest)); + _instructions->relocate(pc + NativeMovConstReg::add_offset, internal_word_Relocation::spec((address) dest)); + } + TRACE_jvmci_3("relocating at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset); + }else { + int const_size = align_size_up(_constants->end()-_constants->start(), CodeEntryAlignment); + NativeMovRegMem* load = nativeMovRegMem_at(pc); + // This offset must match with SPARCLoadConstantTableBaseOp.emitCode + load->set_offset(- (const_size - data_offset + Assembler::min_simm13())); + TRACE_jvmci_3("relocating ld at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset); + } +} + +void CodeInstaller::pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst) { + fatal("CodeInstaller::pd_relocate_CodeBlob - sparc unimp"); +} + +void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) { + address pc = (address) inst; + if (inst->is_call()) { + NativeCall* call = nativeCall_at(pc); + call->set_destination((address) foreign_call_destination); + _instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec()); + } else if (inst->is_sethi()) { + NativeJump* jump = nativeJump_at(pc); + jump->set_jump_destination((address) foreign_call_destination); + _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec()); + } else { + fatal(err_msg("unknown call or jump instruction at " PTR_FORMAT, p2i(pc))); + } + TRACE_jvmci_3("relocating (foreign call) at " PTR_FORMAT, p2i(inst)); +} + +void CodeInstaller::pd_relocate_JavaMethod(oop hotspot_method, jint pc_offset) { +#ifdef ASSERT + Method* method = NULL; + // we need to check, this might also be an unresolved method + if (hotspot_method->is_a(HotSpotResolvedJavaMethodImpl::klass())) { + method = getMethodFromHotSpotMethod(hotspot_method); + } +#endif + switch (_next_call_type) { + case INLINE_INVOKE: + break; + case INVOKEVIRTUAL: + case INVOKEINTERFACE: { + assert(method == NULL || !method->is_static(), "cannot call static method with invokeinterface"); + NativeCall* call = nativeCall_at(_instructions->start() + pc_offset); + call->set_destination(SharedRuntime::get_resolve_virtual_call_stub()); + _instructions->relocate(call->instruction_address(), virtual_call_Relocation::spec(_invoke_mark_pc)); + break; + } + case INVOKESTATIC: { + assert(method == NULL || method->is_static(), "cannot call non-static method with invokestatic"); + NativeCall* call = nativeCall_at(_instructions->start() + pc_offset); + call->set_destination(SharedRuntime::get_resolve_static_call_stub()); + _instructions->relocate(call->instruction_address(), relocInfo::static_call_type); + break; + } + case INVOKESPECIAL: { + assert(method == NULL || !method->is_static(), "cannot call static method with invokespecial"); + NativeCall* call = nativeCall_at(_instructions->start() + pc_offset); + call->set_destination(SharedRuntime::get_resolve_opt_virtual_call_stub()); + _instructions->relocate(call->instruction_address(), relocInfo::opt_virtual_call_type); + break; + } + default: + fatal("invalid _next_call_type value"); + break; + } +} + +void CodeInstaller::pd_relocate_poll(address pc, jint mark) { + switch (mark) { + case POLL_NEAR: + fatal("unimplemented"); + break; + case POLL_FAR: + _instructions->relocate(pc, relocInfo::poll_type); + break; + case POLL_RETURN_NEAR: + fatal("unimplemented"); + break; + case POLL_RETURN_FAR: + _instructions->relocate(pc, relocInfo::poll_return_type); + break; + default: + fatal("invalid mark value"); + break; + } +} + +// convert JVMCI register indices (as used in oop maps) to HotSpot registers +VMReg CodeInstaller::get_hotspot_reg(jint jvmci_reg) { + if (jvmci_reg < RegisterImpl::number_of_registers) { + return as_Register(jvmci_reg)->as_VMReg(); + } else { + jint floatRegisterNumber = jvmci_reg - RegisterImpl::number_of_registers; + floatRegisterNumber += MAX2(0, floatRegisterNumber-32); // Beginning with f32, only every second register is going to be addressed + if (floatRegisterNumber < FloatRegisterImpl::number_of_registers) { + return as_FloatRegister(floatRegisterNumber)->as_VMReg(); + } + ShouldNotReachHere(); + return NULL; + } +} + +bool CodeInstaller::is_general_purpose_reg(VMReg hotspotRegister) { + return !hotspotRegister->is_FloatRegister(); +}