204 lines
8.6 KiB
C++
204 lines
8.6 KiB
C++
/*
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* Copyright (c) 2013, 2017, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include "jvmci/jvmciCodeInstaller.hpp"
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#include "jvmci/jvmciRuntime.hpp"
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#include "jvmci/jvmciCompilerToVM.hpp"
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#include "jvmci/jvmciJavaClasses.hpp"
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#include "oops/oop.inline.hpp"
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#include "runtime/sharedRuntime.hpp"
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#include "utilities/align.hpp"
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#include "vmreg_sparc.inline.hpp"
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jint CodeInstaller::pd_next_offset(NativeInstruction* inst, jint pc_offset, Handle method, TRAPS) {
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if (inst->is_call() || inst->is_jump()) {
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return pc_offset + NativeCall::instruction_size;
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} else if (inst->is_call_reg()) {
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return pc_offset + NativeCallReg::instruction_size;
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} else if (inst->is_sethi()) {
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return pc_offset + NativeFarCall::instruction_size;
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} else {
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JVMCI_ERROR_0("unsupported type of instruction for call site");
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return 0;
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}
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}
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void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle constant, TRAPS) {
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address pc = _instructions->start() + pc_offset;
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Handle obj(THREAD, HotSpotObjectConstantImpl::object(constant));
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jobject value = JNIHandles::make_local(obj());
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if (HotSpotObjectConstantImpl::compressed(constant)) {
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int oop_index = _oop_recorder->find_index(value);
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RelocationHolder rspec = oop_Relocation::spec(oop_index);
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_instructions->relocate(pc, rspec, 1);
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} else {
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NativeMovConstReg* move = nativeMovConstReg_at(pc);
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move->set_data((intptr_t) value);
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// We need two relocations: one on the sethi and one on the add.
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int oop_index = _oop_recorder->find_index(value);
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RelocationHolder rspec = oop_Relocation::spec(oop_index);
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_instructions->relocate(pc + NativeMovConstReg::sethi_offset, rspec);
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_instructions->relocate(pc + NativeMovConstReg::add_offset, rspec);
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}
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}
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void CodeInstaller::pd_patch_MetaspaceConstant(int pc_offset, Handle constant, TRAPS) {
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address pc = _instructions->start() + pc_offset;
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if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
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NativeMovConstReg32* move = nativeMovConstReg32_at(pc);
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narrowKlass narrowOop = record_narrow_metadata_reference(_instructions, pc, constant, CHECK);
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move->set_data((intptr_t)narrowOop);
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TRACE_jvmci_3("relocating (narrow metaspace constant) at " PTR_FORMAT "/0x%x", p2i(pc), narrowOop);
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} else {
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NativeMovConstReg* move = nativeMovConstReg_at(pc);
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void* reference = record_metadata_reference(_instructions, pc, constant, CHECK);
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move->set_data((intptr_t)reference);
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TRACE_jvmci_3("relocating (metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(reference));
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}
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}
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void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset, TRAPS) {
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address pc = _instructions->start() + pc_offset;
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NativeInstruction* inst = nativeInstruction_at(pc);
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NativeInstruction* inst1 = nativeInstruction_at(pc + 4);
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if(inst->is_sethi() && inst1->is_nop()) {
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address const_start = _constants->start();
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address dest = _constants->start() + data_offset;
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if(_constants_size > 0) {
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_instructions->relocate(pc + NativeMovConstReg::sethi_offset, internal_word_Relocation::spec((address) dest));
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_instructions->relocate(pc + NativeMovConstReg::add_offset, internal_word_Relocation::spec((address) dest));
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}
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TRACE_jvmci_3("relocating at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset);
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}else {
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int const_size = align_up(_constants->end()-_constants->start(), CodeEntryAlignment);
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NativeMovRegMem* load = nativeMovRegMem_at(pc);
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// This offset must match with SPARCLoadConstantTableBaseOp.emitCode
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load->set_offset(- (const_size - data_offset + Assembler::min_simm13()));
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TRACE_jvmci_3("relocating ld at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset);
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}
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}
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void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination, TRAPS) {
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address pc = (address) inst;
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if (inst->is_call()) {
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NativeCall* call = nativeCall_at(pc);
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call->set_destination((address) foreign_call_destination);
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_instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec());
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} else if (inst->is_sethi()) {
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NativeJump* jump = nativeJump_at(pc);
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jump->set_jump_destination((address) foreign_call_destination);
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_instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec());
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} else {
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JVMCI_ERROR("unknown call or jump instruction at " PTR_FORMAT, p2i(pc));
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}
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TRACE_jvmci_3("relocating (foreign call) at " PTR_FORMAT, p2i(inst));
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}
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void CodeInstaller::pd_relocate_JavaMethod(CodeBuffer &, Handle hotspot_method, jint pc_offset, TRAPS) {
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#ifdef ASSERT
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Method* method = NULL;
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// we need to check, this might also be an unresolved method
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if (hotspot_method->is_a(HotSpotResolvedJavaMethodImpl::klass())) {
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method = getMethodFromHotSpotMethod(hotspot_method());
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}
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#endif
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switch (_next_call_type) {
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case INLINE_INVOKE:
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break;
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case INVOKEVIRTUAL:
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case INVOKEINTERFACE: {
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assert(method == NULL || !method->is_static(), "cannot call static method with invokeinterface");
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NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
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call->set_destination(SharedRuntime::get_resolve_virtual_call_stub());
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_instructions->relocate(call->instruction_address(), virtual_call_Relocation::spec(_invoke_mark_pc));
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break;
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}
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case INVOKESTATIC: {
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assert(method == NULL || method->is_static(), "cannot call non-static method with invokestatic");
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NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
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call->set_destination(SharedRuntime::get_resolve_static_call_stub());
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_instructions->relocate(call->instruction_address(), relocInfo::static_call_type);
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break;
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}
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case INVOKESPECIAL: {
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assert(method == NULL || !method->is_static(), "cannot call static method with invokespecial");
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NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
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call->set_destination(SharedRuntime::get_resolve_opt_virtual_call_stub());
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_instructions->relocate(call->instruction_address(), relocInfo::opt_virtual_call_type);
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break;
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}
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default:
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JVMCI_ERROR("invalid _next_call_type value");
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break;
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}
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}
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void CodeInstaller::pd_relocate_poll(address pc, jint mark, TRAPS) {
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switch (mark) {
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case POLL_NEAR:
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JVMCI_ERROR("unimplemented");
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break;
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case POLL_FAR:
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_instructions->relocate(pc, relocInfo::poll_type);
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break;
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case POLL_RETURN_NEAR:
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JVMCI_ERROR("unimplemented");
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break;
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case POLL_RETURN_FAR:
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_instructions->relocate(pc, relocInfo::poll_return_type);
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break;
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default:
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JVMCI_ERROR("invalid mark value");
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break;
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}
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}
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// convert JVMCI register indices (as used in oop maps) to HotSpot registers
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VMReg CodeInstaller::get_hotspot_reg(jint jvmci_reg, TRAPS) {
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// JVMCI Registers are numbered as follows:
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// 0..31: Thirty-two General Purpose registers (CPU Registers)
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// 32..63: Thirty-two single precision float registers
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// 64..95: Thirty-two double precision float registers
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// 96..111: Sixteen quad precision float registers
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if (jvmci_reg < 32) {
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return as_Register(jvmci_reg)->as_VMReg();
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} else {
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jint floatRegisterNumber;
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if(jvmci_reg < 64) { // Single precision
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floatRegisterNumber = jvmci_reg - 32;
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} else if(jvmci_reg < 96) {
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floatRegisterNumber = 2 * (jvmci_reg - 64);
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} else if(jvmci_reg < 112) {
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floatRegisterNumber = 4 * (jvmci_reg - 96);
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} else {
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JVMCI_ERROR_NULL("invalid register number: %d", jvmci_reg);
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}
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return as_FloatRegister(floatRegisterNumber)->as_VMReg();
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}
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}
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bool CodeInstaller::is_general_purpose_reg(VMReg hotspotRegister) {
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return !hotspotRegister->is_FloatRegister();
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}
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