Mercurial > hg > truffle
view src/cpu/x86/vm/graalCodeInstaller_x86.cpp @ 16524:a08a58d0736b
[SPARC] Emit compareAndSwap for AtomicInteger and AtomicLong, Removing o7 register from usable ones, as this register is always overwritten, when using Call or JumpAndLink instructions in SPARC, even callee does not overwrite explicitly, implicit exception is defined when doing integer division, parameter constraint narrowed to only register on Unary2Op, Fix SPARCTestOp, as it did a compare instead of an and with condition codes
author | Stefan Anzinger <stefan.anzinger@gmail.com> |
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date | Tue, 15 Jul 2014 19:07:29 -0700 |
parents | 063ec2920d21 |
children | 4e2d34d7715b |
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/* * 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 "graal/graalEnv.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" 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 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_OopData(int pc_offset, oop data) { address pc = _instructions->start() + pc_offset; Handle obj = OopData::object(data); jobject value = JNIHandles::make_local(obj()); if (OopData::compressed(data)) { 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_graal_3("relocating (narrow oop constant) at %p/%p", pc, operand); } 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_graal_3("relocating (oop constant) at %p/%p", pc, operand); } } void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, oop data) { address pc = _instructions->start() + pc_offset; jint offset = DataSectionReference::offset(data); address operand = Assembler::locate_operand(pc, Assembler::disp32_operand); address next_instruction = Assembler::locate_next_instruction(pc); address dest = _constants->start() + 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_graal_3("relocating at %p/%p with destination at %p (%d)", pc, operand, dest, 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_graal_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(HotSpotResolvedJavaMethod::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; } }