truffle: src/cpu/x86/vm/jvmciCodeInstaller

comparison src/cpu/x86/vm/jvmciCodeInstaller_x86.cpp @ 21559:be896a1983c0

recast all Graal native code as JVMCI code (JBS:GRAAL-53)

author	Doug Simon <doug.simon@oracle.com>
date	Thu, 28 May 2015 15:36:48 +0200
parents	src/cpu/x86/vm/graalCodeInstaller_x86.cpp@b8d3f84740c7
children

comparison

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-:d563baeca9df
+:be896a1983c0
+/*
+* Copyright (c) 2013, 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 "compiler/disassembler.hpp"
+#include "runtime/javaCalls.hpp"
+#include "jvmci/jvmciEnv.hpp"
+#include "jvmci/jvmciCodeInstaller.hpp"
+#include "jvmci/jvmciJavaAccess.hpp"
+#include "jvmci/jvmciCompilerToVM.hpp"
+#include "jvmci/jvmciRuntime.hpp"
+#include "asm/register.hpp"
+#include "classfile/vmSymbols.hpp"
+#include "code/vmreg.hpp"
+#include "vmreg_x86.inline.hpp"
+jint CodeInstaller::pd_next_offset(NativeInstruction* inst, jint pc_offset, oop method) {
+if (inst->is_call() || inst->is_jump()) {
+assert(NativeCall::instruction_size == (int)NativeJump::instruction_size, "unexpected size");
+return (pc_offset + NativeCall::instruction_size);
+} else if (inst->is_mov_literal64()) {
+// mov+call instruction pair
+jint offset = pc_offset + NativeMovConstReg::instruction_size;
+u_char* call = (u_char*) (_instructions->start() + offset);
+if (call[0] == Assembler::REX_B) {
+offset += 1; /* prefix byte for extended register R8-R15 */
+call++;
+}
+assert(call[0] == 0xFF, "expected call");
+offset += 2; /* opcode byte + modrm byte */
+return (offset);
+} else if (inst->is_call_reg()) {
+// the inlined vtable stub contains a "call register" instruction
+assert(method != NULL, "only valid for virtual calls");
+return (pc_offset + ((NativeCallReg *) inst)->next_instruction_offset());
+} else if (inst->is_cond_jump()) {
+address pc = (address) (inst);
+return pc_offset + (jint) (Assembler::locate_next_instruction(pc) - pc);
+} 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
+address operand = Assembler::locate_operand(pc, Assembler::narrow_oop_operand);
+int oop_index = _oop_recorder->find_index(value);
+_instructions->relocate(pc, oop_Relocation::spec(oop_index), Assembler::narrow_oop_operand);
+TRACE_jvmci_3("relocating (narrow oop constant) at %p/%p", pc, operand);
+#else
+fatal("compressed oop on 32bit");
+#endif
+} else {
+address operand = Assembler::locate_operand(pc, Assembler::imm_operand);
+*((jobject*) operand) = value;
+_instructions->relocate(pc, oop_Relocation::spec_for_immediate(), Assembler::imm_operand);
+TRACE_jvmci_3("relocating (oop constant) at %p/%p", pc, operand);
+}
+}
+void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) {
+address pc = _instructions->start() + pc_offset;
+address operand = Assembler::locate_operand(pc, Assembler::disp32_operand);
+address next_instruction = Assembler::locate_next_instruction(pc);
+address dest = _constants->start() + data_offset;
+long disp = dest - next_instruction;
+assert(disp == (jint) disp, "disp doesn't fit in 32 bits");
+*((jint*) operand) = (jint) disp;
+_instructions->relocate(pc, section_word_Relocation::spec((address) dest, CodeBuffer::SECT_CONSTS), Assembler::disp32_operand);
+TRACE_jvmci_3("relocating at %p/%p with destination at %p (%d)", pc, operand, dest, data_offset);
+}
+void CodeInstaller::pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst) {
+if (cb->is_nmethod()) {
+nmethod* nm = (nmethod*) cb;
+nativeJump_at((address)inst)->set_jump_destination(nm->verified_entry_point());
+} else {
+nativeJump_at((address)inst)->set_jump_destination(cb->code_begin());
+}
+_instructions->relocate((address)inst, runtime_call_Relocation::spec(), Assembler::call32_operand);
+}
+void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) {
+address pc = (address) inst;
+if (inst->is_call()) {
+// NOTE: for call without a mov, the offset must fit a 32-bit immediate
+//       see also CompilerToVM.getMaxCallTargetOffset()
+NativeCall* call = nativeCall_at(pc);
+call->set_destination((address) foreign_call_destination);
+_instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand);
+} else if (inst->is_mov_literal64()) {
+NativeMovConstReg* mov = nativeMovConstReg_at(pc);
+mov->set_data((intptr_t) foreign_call_destination);
+_instructions->relocate(mov->instruction_address(), runtime_call_Relocation::spec(), Assembler::imm_operand);
+} else if (inst->is_jump()) {
+NativeJump* jump = nativeJump_at(pc);
+jump->set_jump_destination((address) foreign_call_destination);
+_instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand);
+} else if (inst->is_cond_jump()) {
+address old_dest = nativeGeneralJump_at(pc)->jump_destination();
+address disp = Assembler::locate_operand(pc, Assembler::call32_operand);
+*(jint*) disp += ((address) foreign_call_destination) - old_dest;
+_instructions->relocate(pc, runtime_call_Relocation::spec(), Assembler::call32_operand);
+} else {
+fatal("unsupported relocation for foreign call");
+}
+TRACE_jvmci_3("relocating (foreign call)  at %p", 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),
+Assembler::call32_operand);
+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, Assembler::call32_operand);
+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, Assembler::call32_operand);
+break;
+}
+default:
+break;
+}
+}
+static void relocate_poll_near(address pc) {
+NativeInstruction* ni = nativeInstruction_at(pc);
+int32_t* disp = (int32_t*) Assembler::locate_operand(pc, Assembler::disp32_operand);
+int32_t offset = *disp; // The Java code installed the polling page offset into the disp32 operand
+intptr_t new_disp = (intptr_t) (os::get_polling_page() + offset) - (intptr_t) ni;
+*disp = (int32_t)new_disp;
+}
+void CodeInstaller::pd_relocate_poll(address pc, jint mark) {
+switch (mark) {
+case POLL_NEAR: {
+relocate_poll_near(pc);
+_instructions->relocate(pc, relocInfo::poll_type, Assembler::disp32_operand);
+break;
+}
+case POLL_FAR:
+// This is a load from a register so there is no relocatable operand.
+// We just have to ensure that the format is not disp32_operand
+// so that poll_Relocation::fix_relocation_after_move does the right
+// thing (i.e. ignores this relocation record)
+_instructions->relocate(pc, relocInfo::poll_type, Assembler::imm_operand);
+break;
+case POLL_RETURN_NEAR: {
+relocate_poll_near(pc);
+_instructions->relocate(pc, relocInfo::poll_return_type, Assembler::disp32_operand);
+break;
+}
+case POLL_RETURN_FAR:
+// see comment above for POLL_FAR
+_instructions->relocate(pc, relocInfo::poll_return_type, Assembler::imm_operand);
+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;
+if (floatRegisterNumber < XMMRegisterImpl::number_of_registers) {
+return as_XMMRegister(floatRegisterNumber)->as_VMReg();
+}
+ShouldNotReachHere();
+return NULL;
+}
+}
+bool CodeInstaller::is_general_purpose_reg(VMReg hotspotRegister) {
+return !(hotspotRegister->is_FloatRegister() || hotspotRegister->is_XMMRegister());
+}

Mercurial > hg > truffle

comparison src/cpu/x86/vm/jvmciCodeInstaller_x86.cpp @ 21559:be896a1983c0