Mercurial > hg > icedtea8-forest > hotspot
view src/share/vm/runtime/registerMap.hpp @ 10905:f57189b7648d
8257192: Integrate AArch64 JIT port into 8u
7009641: Don't fail VM when CodeCache is full
8073108: [AArch64] Use x86 and SPARC CPU instructions for GHASH acceleration
8130309: Need to bailout cleanly if creation of stubs fails when codecache is out of space (AArch64 changes)
8131779: AARCH64: add Montgomery multiply intrinsic
8132875: AArch64: Fix error introduced into AArch64 CodeCache by commit for 8130309
8135018: AARCH64: Missing memory barriers for CMS collector
8145320: Create unsafe_arraycopy and generic_arraycopy for AArch64
8148328: aarch64: redundant lsr instructions in stub code.
8148783: aarch64: SEGV running SpecJBB2013
8148948: aarch64: generate_copy_longs calls align() incorrectly
8149080: AArch64: Recognise disjoint array copy in stub code
8149365: aarch64: memory copy does not prefetch on backwards copy
8149907: aarch64: use load/store pair instructions in call_stub
8150038: aarch64: make use of CBZ and CBNZ when comparing narrow pointer with zero
8150045: arraycopy causes segfaults in SATB during garbage collection
8150082: aarch64: optimise small array copy
8150229: aarch64: pipeline class for several instructions is not set correctly
8150313: aarch64: optimise array copy using SIMD instructions
8150394: aarch64: add support for 8.1 LSE CAS instructions
8150652: Remove unused code in AArch64 back end
8151340: aarch64: prefetch the destination word for write prior to ldxr/stxr loops.
8151502: optimize pd_disjoint_words and pd_conjoint_words
8151775: aarch64: add support for 8.1 LSE atomic operations
8152537: aarch64: Make use of CBZ and CBNZ when comparing unsigned values with zero.
8152840: aarch64: improve _unsafe_arraycopy stub routine
8153172: aarch64: hotspot crashes after the 8.1 LSE patch is merged
8153713: aarch64: improve short array clearing using store pair
8153797: aarch64: Add Arrays.fill stub code
8154413: AArch64: Better byte behaviour
8154537: AArch64: some integer rotate instructions are never emitted
8154739: AArch64: TemplateTable::fast_xaccess loads in wrong mode
8155015: Aarch64: bad assert in spill generation code
8155100: AArch64: Relax alignment requirement for byte_map_base
8155612: Aarch64: vector nodes need to support misaligned offset
8155617: aarch64: ClearArray does not use DC ZVA
8155627: Enable SA on AArch64
8155653: TestVectorUnalignedOffset.java not pushed with 8155612
8156731: aarch64: java/util/Arrays/Correct.java fails due to _generic_arraycopy stub routine
8157841: aarch64: prefetch ignores cache line size
8157906: aarch64: some more integer rotate instructions are never emitted
8158913: aarch64: SEGV running Spark terasort
8159052: aarch64: optimise unaligned copies in pd_disjoint_words and pd_conjoint_words
8159063: aarch64: optimise unaligned array copy long
8160748: [AArch64] Inconsistent types for ideal_reg
8161072: AArch64: jtreg compiler/uncommontrap/TestDeoptOOM failure
8161190: AArch64: Fix overflow in immediate cmp instruction
8164113: AArch64: follow-up the fix for 8161598
8165673: AArch64: Fix JNI floating point argument handling
8167200: AArch64: Broken stack pointer adjustment in interpreter
8167421: AArch64: in one core system, fatal error: Illegal threadstate encountered
8167595: AArch64: SEGV in stub code cipherBlockChaining_decryptAESCrypt
8168699: Validate special case invocations [AArch64 support]
8168888: Port 8160591: Improve internal array handling to AArch64.
8170100: AArch64: Crash in C1-compiled code accessing References
8170188: jtreg test compiler/types/TestMeetIncompatibleInterfaceArrays.java causes JVM crash
8170873: PPC64/aarch64: Poor StrictMath performance due to non-optimized compilation
8171537: aarch64: compiler/c1/Test6849574.java generates guarantee failure in C1
8172881: AArch64: assertion failure: the int pressure is incorrect
8173472: AArch64: C1 comparisons with null only use 32-bit instructions
8176100: [AArch64] [REDO][REDO] G1 Needs pre barrier on dereference of weak JNI handles
8177661: Correct ad rule output register types from iRegX to iRegXNoSp
8179954: AArch64: C1 and C2 volatile accesses are not sequentially consistent
8182581: aarch64: fix for crash caused by earlyret of compiled method
8183925: [AArch64] Decouple crash protection from watcher thread
8186325: AArch64: jtreg test hotspot/test/gc/g1/TestJNIWeakG1/TestJNIWeakG1.java SEGV
8187224: aarch64: some inconsistency between aarch64_ad.m4 and aarch64.ad
8189170: [AArch64] Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
8193133: Assertion failure because 0xDEADDEAD can be in-heap
8195685: AArch64 port of 8174962: Better interface invocations
8195859: AArch64: vtableStubs gtest fails after 8174962
8196136: AArch64: Correct register use in patch for JDK-8194686
8196221: AArch64: Mistake in committed patch for JDK-8195859
8199712: [AArch64] Flight Recorder
8203481: Incorrect constraint for unextended_sp in frame:safe_for_sender
8203699: java/lang/invoke/SpecialInterfaceCall fails with SIGILL on aarch64
8205421: AARCH64: StubCodeMark should be placed after alignment
8206163: AArch64: incorrect code generation for StoreCM
8207345: Trampoline generation code reads from uninitialized memory
8207838: AArch64: Float registers incorrectly restored in JNI call
8209413: AArch64: NPE in clhsdb jstack command
8209414: [AArch64] method handle invocation does not respect JVMTI interp_only mode
8209415: Fix JVMTI test failure HS202
8209420: Track membars for volatile accesses so they can be properly optimized
8209835: Aarch64: elide barriers on all volatile operations
8210425: [AArch64] sharedRuntimeTrig/sharedRuntimeTrans compiled without optimization
8211064: [AArch64] Interpreter and c1 don't correctly handle jboolean results in native calls
8211233: MemBarNode::trailing_membar() and MemBarNode::leading_membar() need to handle dying subgraphs better
8213134: AArch64: vector shift failed with MaxVectorSize=8
8213419: [AArch64] C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
8214857: "bad trailing membar" assert failure at memnode.cpp:3220
8215951: AArch64: jtreg test vmTestbase/nsk/jvmti/PopFrame/popframe005 segfaults
8215961: jdk/jfr/event/os/TestCPUInformation.java fails on AArch64
8216350: AArch64: monitor unlock fast path not called
8216989: CardTableBarrierSetAssembler::gen_write_ref_array_post_barrier() does not check for zero length on AARCH64
8217368: AArch64: C2 recursive stack locking optimisation not triggered
8218185: aarch64: missing LoadStore barrier in TemplateTable::putfield_or_static
8219011: Implement MacroAssembler::warn method on AArch64
8219635: aarch64: missing LoadStore barrier in TemplateTable::fast_storefield
8221220: AArch64: Add StoreStore membar explicitly for Volatile Writes in TemplateTable
8221658: aarch64: add necessary predicate for ubfx patterns
8224671: AArch64: mauve System.arraycopy test failure
8224828: aarch64: rflags is not correct after safepoint poll
8224851: AArch64: fix warnings and errors with Clang and GCC 8.3
8224880: AArch64: java/javac error with AllocatePrefetchDistance
8228400: Remove built-in AArch64 simulator
8228406: Superfluous change in chaitin.hpp
8228593: Revert explicit JDK 7 support additions
8228716: Revert InstanceKlass::print_on debug additions
8228718: Revert incorrect backport of JDK-8129757 to 8-aarch64
8228725: AArch64: Purge method call format support
8228747: Revert "unused" attribute from test_arraycopy_func
8228767: Revert ResourceMark additions
8228770: Revert development hsdis changes
8229123: Revert build fixes for aarch64/zero
8229124: Revert disassembler.cpp changes
8229145: Revert TemplateTable::bytecode() visibility change
8233839: aarch64: missing memory barrier in NewObjectArrayStub and NewTypeArrayStub
8237512: AArch64: aarch64TestHook leaks a BufferBlob
8246482: Build failures with +JFR -PCH
8247979: aarch64: missing side effect of killing flags for clearArray_reg_reg
8248219: aarch64: missing memory barrier in fast_storefield and fast_accessfield
Reviewed-by: shade, aph
author | andrew |
---|---|
date | Mon, 01 Feb 2021 03:48:36 +0000 |
parents | 1d1603768966 |
children |
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/* * Copyright (c) 2002, 2011, 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 SHARE_VM_RUNTIME_REGISTERMAP_HPP #define SHARE_VM_RUNTIME_REGISTERMAP_HPP #include "code/vmreg.hpp" #include "utilities/globalDefinitions.hpp" #ifdef TARGET_ARCH_x86 # include "register_x86.hpp" #endif #ifdef TARGET_ARCH_aarch64 # include "register_aarch64.hpp" #endif #ifdef TARGET_ARCH_sparc # include "register_sparc.hpp" #endif #ifdef TARGET_ARCH_zero # include "register_zero.hpp" #endif #ifdef TARGET_ARCH_arm # include "register_arm.hpp" #endif #ifdef TARGET_ARCH_ppc # include "register_ppc.hpp" #endif class JavaThread; // // RegisterMap // // A companion structure used for stack traversal. The RegisterMap contains // misc. information needed in order to do correct stack traversal of stack // frames. Hence, it must always be passed in as an argument to // frame::sender(RegisterMap*). // // In particular, // 1) It provides access to the thread for which the stack belongs. The // thread object is needed in order to get sender of a deoptimized frame. // // 2) It is used to pass information from a callee frame to its caller // frame about how the frame should be traversed. This is used to let // the caller frame take care of calling oops-do of out-going // arguments, when the callee frame is not instantiated yet. This // happens, e.g., when a compiled frame calls into // resolve_virtual_call. (Hence, it is critical that the same // RegisterMap object is used for the entire stack walk. Normally, // this is hidden by using the StackFrameStream.) This is used when // doing follow_oops and oops_do. // // 3) The RegisterMap keeps track of the values of callee-saved registers // from frame to frame (hence, the name). For some stack traversal the // values of the callee-saved registers does not matter, e.g., if you // only need the static properies such as frame type, pc, and such. // Updating of the RegisterMap can be turned off by instantiating the // register map as: RegisterMap map(thread, false); class RegisterMap : public StackObj { public: typedef julong LocationValidType; enum { reg_count = ConcreteRegisterImpl::number_of_registers, location_valid_type_size = sizeof(LocationValidType)*8, location_valid_size = (reg_count+location_valid_type_size-1)/location_valid_type_size }; private: intptr_t* _location[reg_count]; // Location of registers (intptr_t* looks better than address in the debugger) LocationValidType _location_valid[location_valid_size]; bool _include_argument_oops; // Should include argument_oop marked locations for compiler JavaThread* _thread; // Reference to current thread bool _update_map; // Tells if the register map need to be // updated when traversing the stack #ifdef ASSERT void check_location_valid(); #else void check_location_valid() {} #endif public: debug_only(intptr_t* _update_for_id;) // Assert that RegisterMap is not updated twice for same frame RegisterMap(JavaThread *thread, bool update_map = true); RegisterMap(const RegisterMap* map); address location(VMReg reg) const { int index = reg->value() / location_valid_type_size; assert(0 <= reg->value() && reg->value() < reg_count, "range check"); assert(0 <= index && index < location_valid_size, "range check"); if (_location_valid[index] & ((LocationValidType)1 << (reg->value() % location_valid_type_size))) { return (address) _location[reg->value()]; } else { return pd_location(reg); } } void set_location(VMReg reg, address loc) { int index = reg->value() / location_valid_type_size; assert(0 <= reg->value() && reg->value() < reg_count, "range check"); assert(0 <= index && index < location_valid_size, "range check"); assert(_update_map, "updating map that does not need updating"); _location[reg->value()] = (intptr_t*) loc; _location_valid[index] |= ((LocationValidType)1 << (reg->value() % location_valid_type_size)); check_location_valid(); } // Called by an entry frame. void clear(); bool include_argument_oops() const { return _include_argument_oops; } void set_include_argument_oops(bool f) { _include_argument_oops = f; } JavaThread *thread() const { return _thread; } bool update_map() const { return _update_map; } void print_on(outputStream* st) const; void print() const; // the following contains the definition of pd_xxx methods #ifdef TARGET_ARCH_x86 # include "registerMap_x86.hpp" #endif #ifdef TARGET_ARCH_aarch64 # include "registerMap_aarch64.hpp" #endif #ifdef TARGET_ARCH_sparc # include "registerMap_sparc.hpp" #endif #ifdef TARGET_ARCH_zero # include "registerMap_zero.hpp" #endif #ifdef TARGET_ARCH_arm # include "registerMap_arm.hpp" #endif #ifdef TARGET_ARCH_ppc # include "registerMap_ppc.hpp" #endif }; #endif // SHARE_VM_RUNTIME_REGISTERMAP_HPP