Mercurial > hg > graal-compiler
view src/cpu/x86/vm/graalCodeInstaller_x86.hpp @ 10953:97e282186b5b
Add heap sanity checker with premature hard crash for debugging write barriers
author | Christos Kotselidis <christos.kotselidis@oracle.com> |
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date | Fri, 02 Aug 2013 19:03:05 +0200 |
parents | 4e1db4c9d4c5 |
children | ce0b00597980 |
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/* * Copyright (c) 2013, 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. */ #ifndef CPU_SPARC_VM_CODEINSTALLER_X86_HPP #define CPU_SPARC_VM_CODEINSTALLER_X86_HPP #include "compiler/disassembler.hpp" #include "runtime/javaCalls.hpp" #include "graal/graalEnv.hpp" #include "graal/graalCompiler.hpp" #include "graal/graalCodeInstaller.hpp" #include "graal/graalJavaAccess.hpp" #include "graal/graalCompilerToVM.hpp" #include "graal/graalRuntime.hpp" #include "asm/register.hpp" #include "classfile/vmSymbols.hpp" #include "code/vmreg.hpp" inline 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); assert((call[0] == 0x40 || call[0] == 0x41) && call[1] == 0xFF, "expected call with rex/rexb prefix byte"); offset += 3; /* prefix byte + 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 { fatal("unsupported type of instruction for call site"); return 0; } } inline void CodeInstaller::pd_site_DataPatch(int pc_offset, oop site) { int alignment = CompilationResult_DataPatch::alignment(site); bool inlined = CompilationResult_DataPatch::inlined(site) == JNI_TRUE; address pc = _instructions->start() + pc_offset; oop constant = CompilationResult_DataPatch::constant(site); char typeChar; if (constant != NULL) { oop kind = Constant::kind(constant); typeChar = Kind::typeChar(kind); } else { assert(!inlined, "cannot inline raw constants"); typeChar = '*'; } switch (typeChar) { case 'z': case 'b': case 's': case 'c': case 'i': fatal("int-sized values not expected in DataPatch"); break; case 'f': case 'j': case 'd': case '*': { if (inlined) { address operand = Assembler::locate_operand(pc, Assembler::imm_operand); *((jlong*) operand) = Constant::primitive(constant); } else { address operand = Assembler::locate_operand(pc, Assembler::disp32_operand); address next_instruction = Assembler::locate_next_instruction(pc); int size = _constants->size(); if (alignment > 0) { guarantee(alignment <= _constants->alignment(), "Alignment inside constants section is restricted by alignment of section begin"); size = align_size_up(size, alignment); } // we don't care if this is a long/double/etc., the primitive field contains the right bits address dest = _constants->start() + size; _constants->set_end(dest); if (constant != NULL) { uint64_t value = Constant::primitive(constant); _constants->emit_int64(value); } else { arrayOop rawConstant = arrayOop(CompilationResult_DataPatch::rawConstant(site)); int8_t *ptr = (int8_t*) rawConstant->base(T_BYTE); for (int i = rawConstant->length(); i > 0; i--, ptr++) { _constants->emit_int8(*ptr); } } 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_graal_3("relocating (%c) at %p/%p with destination at %p (%d)", typeChar, pc, operand, dest, size); } break; } case 'a': { address operand = Assembler::locate_operand(pc, Assembler::imm_operand); Handle obj = Constant::object(constant); jobject value = JNIHandles::make_local(obj()); *((jobject*) operand) = value; _instructions->relocate(pc, oop_Relocation::spec_for_immediate(), Assembler::imm_operand); TRACE_graal_3("relocating (oop constant) at %p/%p", pc, operand); break; } default: fatal(err_msg("unexpected Kind (%d) in DataPatch", typeChar)); break; } } inline 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); } inline void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) { 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((address) (inst)); 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((address) (inst)); mov->set_data((intptr_t) foreign_call_destination); _instructions->relocate(mov->instruction_address(), runtime_call_Relocation::spec(), Assembler::imm_operand); } else { NativeJump* jump = nativeJump_at((address) (inst)); jump->set_jump_destination((address) foreign_call_destination); _instructions->relocate((address)inst, runtime_call_Relocation::spec(), Assembler::call32_operand); } TRACE_graal_3("relocating (foreign call) at %p", inst); } inline 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(HotSpotResolvedJavaMethod::klass())) { method = getMethodFromHotSpotMethod(hotspot_method); } #endif switch (_next_call_type) { case MARK_INLINE_INVOKE: break; case MARK_INVOKEVIRTUAL: case MARK_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 MARK_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 MARK_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; } } inline int32_t* CodeInstaller::pd_locate_operand(address instruction) { return (int32_t*) Assembler::locate_operand(instruction, Assembler::disp32_operand); } #endif // CPU_SPARC_VM_CODEINSTALLER_X86_HPP