| /* |
| * Copyright (c) 1997, 2023, 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 "asm/codeBuffer.hpp" |
| #include "asm/macroAssembler.inline.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "oops/access.inline.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "prims/vectorSupport.hpp" |
| #include "runtime/continuation.hpp" |
| #include "runtime/interfaceSupport.inline.hpp" |
| #include "runtime/timerTrace.hpp" |
| #include "runtime/sharedRuntime.hpp" |
| #include "runtime/stubRoutines.hpp" |
| #include "utilities/align.hpp" |
| #include "utilities/copy.hpp" |
| #ifdef COMPILER2 |
| #include "opto/runtime.hpp" |
| #endif |
| |
| UnsafeCopyMemory* UnsafeCopyMemory::_table = nullptr; |
| int UnsafeCopyMemory::_table_length = 0; |
| int UnsafeCopyMemory::_table_max_length = 0; |
| address UnsafeCopyMemory::_common_exit_stub_pc = nullptr; |
| |
| // Implementation of StubRoutines - for a description |
| // of how to extend it, see the header file. |
| |
| // Class Variables |
| |
| BufferBlob* StubRoutines::_initial_stubs_code = nullptr; |
| BufferBlob* StubRoutines::_final_stubs_code = nullptr; |
| BufferBlob* StubRoutines::_compiler_stubs_code = nullptr; |
| BufferBlob* StubRoutines::_continuation_stubs_code = nullptr; |
| |
| address StubRoutines::_call_stub_return_address = nullptr; |
| address StubRoutines::_call_stub_entry = nullptr; |
| |
| address StubRoutines::_catch_exception_entry = nullptr; |
| address StubRoutines::_forward_exception_entry = nullptr; |
| address StubRoutines::_throw_AbstractMethodError_entry = nullptr; |
| address StubRoutines::_throw_IncompatibleClassChangeError_entry = nullptr; |
| address StubRoutines::_throw_NullPointerException_at_call_entry = nullptr; |
| address StubRoutines::_throw_StackOverflowError_entry = nullptr; |
| address StubRoutines::_throw_delayed_StackOverflowError_entry = nullptr; |
| jint StubRoutines::_verify_oop_count = 0; |
| address StubRoutines::_verify_oop_subroutine_entry = nullptr; |
| address StubRoutines::_atomic_xchg_entry = nullptr; |
| address StubRoutines::_atomic_cmpxchg_entry = nullptr; |
| address StubRoutines::_atomic_cmpxchg_long_entry = nullptr; |
| address StubRoutines::_atomic_add_entry = nullptr; |
| address StubRoutines::_fence_entry = nullptr; |
| |
| // Compiled code entry points default values |
| // The default functions don't have separate disjoint versions. |
| address StubRoutines::_jbyte_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy); |
| address StubRoutines::_jshort_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy); |
| address StubRoutines::_jint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy); |
| address StubRoutines::_jlong_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy); |
| address StubRoutines::_oop_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy); |
| address StubRoutines::_oop_arraycopy_uninit = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy_uninit); |
| address StubRoutines::_jbyte_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy); |
| address StubRoutines::_jshort_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy); |
| address StubRoutines::_jint_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy); |
| address StubRoutines::_jlong_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy); |
| address StubRoutines::_oop_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy); |
| address StubRoutines::_oop_disjoint_arraycopy_uninit = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy_uninit); |
| |
| address StubRoutines::_arrayof_jbyte_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy); |
| address StubRoutines::_arrayof_jshort_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy); |
| address StubRoutines::_arrayof_jint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy); |
| address StubRoutines::_arrayof_jlong_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy); |
| address StubRoutines::_arrayof_oop_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy); |
| address StubRoutines::_arrayof_oop_arraycopy_uninit = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy_uninit); |
| address StubRoutines::_arrayof_jbyte_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy); |
| address StubRoutines::_arrayof_jshort_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy); |
| address StubRoutines::_arrayof_jint_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy); |
| address StubRoutines::_arrayof_jlong_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy); |
| address StubRoutines::_arrayof_oop_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy); |
| address StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy_uninit); |
| |
| address StubRoutines::_data_cache_writeback = nullptr; |
| address StubRoutines::_data_cache_writeback_sync = nullptr; |
| |
| address StubRoutines::_checkcast_arraycopy = nullptr; |
| address StubRoutines::_checkcast_arraycopy_uninit = nullptr; |
| address StubRoutines::_unsafe_arraycopy = nullptr; |
| address StubRoutines::_generic_arraycopy = nullptr; |
| |
| address StubRoutines::_jbyte_fill; |
| address StubRoutines::_jshort_fill; |
| address StubRoutines::_jint_fill; |
| address StubRoutines::_arrayof_jbyte_fill; |
| address StubRoutines::_arrayof_jshort_fill; |
| address StubRoutines::_arrayof_jint_fill; |
| |
| address StubRoutines::_aescrypt_encryptBlock = nullptr; |
| address StubRoutines::_aescrypt_decryptBlock = nullptr; |
| address StubRoutines::_cipherBlockChaining_encryptAESCrypt = nullptr; |
| address StubRoutines::_cipherBlockChaining_decryptAESCrypt = nullptr; |
| address StubRoutines::_electronicCodeBook_encryptAESCrypt = nullptr; |
| address StubRoutines::_electronicCodeBook_decryptAESCrypt = nullptr; |
| address StubRoutines::_counterMode_AESCrypt = nullptr; |
| address StubRoutines::_galoisCounterMode_AESCrypt = nullptr; |
| address StubRoutines::_ghash_processBlocks = nullptr; |
| address StubRoutines::_chacha20Block = nullptr; |
| address StubRoutines::_base64_encodeBlock = nullptr; |
| address StubRoutines::_base64_decodeBlock = nullptr; |
| address StubRoutines::_poly1305_processBlocks = nullptr; |
| |
| address StubRoutines::_md5_implCompress = nullptr; |
| address StubRoutines::_md5_implCompressMB = nullptr; |
| address StubRoutines::_sha1_implCompress = nullptr; |
| address StubRoutines::_sha1_implCompressMB = nullptr; |
| address StubRoutines::_sha256_implCompress = nullptr; |
| address StubRoutines::_sha256_implCompressMB = nullptr; |
| address StubRoutines::_sha512_implCompress = nullptr; |
| address StubRoutines::_sha512_implCompressMB = nullptr; |
| address StubRoutines::_sha3_implCompress = nullptr; |
| address StubRoutines::_sha3_implCompressMB = nullptr; |
| |
| address StubRoutines::_updateBytesCRC32 = nullptr; |
| address StubRoutines::_crc_table_adr = nullptr; |
| |
| address StubRoutines::_crc32c_table_addr = nullptr; |
| address StubRoutines::_updateBytesCRC32C = nullptr; |
| address StubRoutines::_updateBytesAdler32 = nullptr; |
| |
| address StubRoutines::_multiplyToLen = nullptr; |
| address StubRoutines::_squareToLen = nullptr; |
| address StubRoutines::_mulAdd = nullptr; |
| address StubRoutines::_montgomeryMultiply = nullptr; |
| address StubRoutines::_montgomerySquare = nullptr; |
| address StubRoutines::_bigIntegerRightShiftWorker = nullptr; |
| address StubRoutines::_bigIntegerLeftShiftWorker = nullptr; |
| |
| address StubRoutines::_vectorizedMismatch = nullptr; |
| |
| address StubRoutines::_dexp = nullptr; |
| address StubRoutines::_dlog = nullptr; |
| address StubRoutines::_dlog10 = nullptr; |
| address StubRoutines::_dpow = nullptr; |
| address StubRoutines::_dsin = nullptr; |
| address StubRoutines::_dcos = nullptr; |
| address StubRoutines::_dlibm_sin_cos_huge = nullptr; |
| address StubRoutines::_dlibm_reduce_pi04l = nullptr; |
| address StubRoutines::_dlibm_tan_cot_huge = nullptr; |
| address StubRoutines::_dtan = nullptr; |
| |
| address StubRoutines::_f2hf = nullptr; |
| address StubRoutines::_hf2f = nullptr; |
| |
| address StubRoutines::_vector_f_math[VectorSupport::NUM_VEC_SIZES][VectorSupport::NUM_SVML_OP] = {{nullptr}, {nullptr}}; |
| address StubRoutines::_vector_d_math[VectorSupport::NUM_VEC_SIZES][VectorSupport::NUM_SVML_OP] = {{nullptr}, {nullptr}}; |
| |
| address StubRoutines::_cont_thaw = nullptr; |
| address StubRoutines::_cont_returnBarrier = nullptr; |
| address StubRoutines::_cont_returnBarrierExc = nullptr; |
| |
| JFR_ONLY(RuntimeStub* StubRoutines::_jfr_write_checkpoint_stub = nullptr;) |
| JFR_ONLY(address StubRoutines::_jfr_write_checkpoint = nullptr;) |
| JFR_ONLY(RuntimeStub* StubRoutines::_jfr_return_lease_stub = nullptr;) |
| JFR_ONLY(address StubRoutines::_jfr_return_lease = nullptr;) |
| |
| // Initialization |
| // |
| // Note: to break cycle with universe initialization, stubs are generated in two phases. |
| // The first one generates stubs needed during universe init (e.g., _handle_must_compile_first_entry). |
| // The second phase includes all other stubs (which may depend on universe being initialized.) |
| |
| extern void StubGenerator_generate(CodeBuffer* code, StubCodeGenerator::StubsKind kind); // only interface to generators |
| |
| void UnsafeCopyMemory::create_table(int max_size) { |
| UnsafeCopyMemory::_table = new UnsafeCopyMemory[max_size]; |
| UnsafeCopyMemory::_table_max_length = max_size; |
| } |
| |
| bool UnsafeCopyMemory::contains_pc(address pc) { |
| for (int i = 0; i < UnsafeCopyMemory::_table_length; i++) { |
| UnsafeCopyMemory* entry = &UnsafeCopyMemory::_table[i]; |
| if (pc >= entry->start_pc() && pc < entry->end_pc()) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| address UnsafeCopyMemory::page_error_continue_pc(address pc) { |
| for (int i = 0; i < UnsafeCopyMemory::_table_length; i++) { |
| UnsafeCopyMemory* entry = &UnsafeCopyMemory::_table[i]; |
| if (pc >= entry->start_pc() && pc < entry->end_pc()) { |
| return entry->error_exit_pc(); |
| } |
| } |
| return nullptr; |
| } |
| |
| |
| static BufferBlob* initialize_stubs(StubCodeGenerator::StubsKind kind, |
| int code_size, int max_aligned_stubs, |
| const char* timer_msg, |
| const char* buffer_name, |
| const char* assert_msg) { |
| ResourceMark rm; |
| TraceTime timer(timer_msg, TRACETIME_LOG(Info, startuptime)); |
| // Add extra space for large CodeEntryAlignment |
| int size = code_size + CodeEntryAlignment * max_aligned_stubs; |
| BufferBlob* stubs_code = BufferBlob::create(buffer_name, size); |
| if (stubs_code == nullptr) { |
| vm_exit_out_of_memory(code_size, OOM_MALLOC_ERROR, "CodeCache: no room for %s", buffer_name); |
| } |
| CodeBuffer buffer(stubs_code); |
| StubGenerator_generate(&buffer, kind); |
| // When new stubs added we need to make sure there is some space left |
| // to catch situation when we should increase size again. |
| assert(code_size == 0 || buffer.insts_remaining() > 200, "increase %s", assert_msg); |
| |
| LogTarget(Info, stubs) lt; |
| if (lt.is_enabled()) { |
| LogStream ls(lt); |
| ls.print_cr("%s\t [" INTPTR_FORMAT ", " INTPTR_FORMAT "] used: %d, free: %d", |
| buffer_name, p2i(stubs_code->content_begin()), p2i(stubs_code->content_end()), |
| buffer.total_content_size(), buffer.insts_remaining()); |
| } |
| return stubs_code; |
| } |
| |
| void StubRoutines::initialize_initial_stubs() { |
| if (_initial_stubs_code == nullptr) { |
| _initial_stubs_code = initialize_stubs(StubCodeGenerator::Initial_stubs, |
| _initial_stubs_code_size, 10, |
| "StubRoutines generation initial stubs", |
| "StubRoutines (initial stubs)", |
| "_initial_stubs_code_size"); |
| } |
| } |
| |
| void StubRoutines::initialize_continuation_stubs() { |
| if (_continuation_stubs_code == nullptr) { |
| _continuation_stubs_code = initialize_stubs(StubCodeGenerator::Continuation_stubs, |
| _continuation_stubs_code_size, 10, |
| "StubRoutines generation continuation stubs", |
| "StubRoutines (continuation stubs)", |
| "_continuation_stubs_code_size"); |
| } |
| } |
| |
| void StubRoutines::initialize_compiler_stubs() { |
| if (_compiler_stubs_code == nullptr) { |
| _compiler_stubs_code = initialize_stubs(StubCodeGenerator::Compiler_stubs, |
| _compiler_stubs_code_size, 100, |
| "StubRoutines generation compiler stubs", |
| "StubRoutines (compiler stubs)", |
| "_compiler_stubs_code_size"); |
| } |
| } |
| |
| void StubRoutines::initialize_final_stubs() { |
| if (_final_stubs_code == nullptr) { |
| _final_stubs_code = initialize_stubs(StubCodeGenerator::Final_stubs, |
| _final_stubs_code_size, 10, |
| "StubRoutines generation final stubs", |
| "StubRoutines (final stubs)", |
| "_final_stubs_code_size"); |
| } |
| } |
| |
| void initial_stubs_init() { StubRoutines::initialize_initial_stubs(); } |
| void continuation_stubs_init() { StubRoutines::initialize_continuation_stubs(); } |
| void final_stubs_init() { StubRoutines::initialize_final_stubs(); } |
| |
| void compiler_stubs_init(bool in_compiler_thread) { |
| if (in_compiler_thread && DelayCompilerStubsGeneration) { |
| // Temporarily revert state of stubs generation because |
| // it is called after final_stubs_init() finished |
| // during compiler runtime initialization. |
| // It is fine because these stubs are only used by |
| // compiled code and compiler is not running yet. |
| StubCodeDesc::unfreeze(); |
| StubRoutines::initialize_compiler_stubs(); |
| StubCodeDesc::freeze(); |
| } else if (!in_compiler_thread && !DelayCompilerStubsGeneration) { |
| StubRoutines::initialize_compiler_stubs(); |
| } |
| } |
| |
| // |
| // Default versions of arraycopy functions |
| // |
| |
| JRT_LEAF(void, StubRoutines::jbyte_copy(jbyte* src, jbyte* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_jbyte_array_copy_ctr++; // Slow-path byte array copy |
| #endif // !PRODUCT |
| Copy::conjoint_jbytes_atomic(src, dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::jshort_copy(jshort* src, jshort* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_jshort_array_copy_ctr++; // Slow-path short/char array copy |
| #endif // !PRODUCT |
| Copy::conjoint_jshorts_atomic(src, dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::jint_copy(jint* src, jint* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_jint_array_copy_ctr++; // Slow-path int/float array copy |
| #endif // !PRODUCT |
| Copy::conjoint_jints_atomic(src, dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::jlong_copy(jlong* src, jlong* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_jlong_array_copy_ctr++; // Slow-path long/double array copy |
| #endif // !PRODUCT |
| Copy::conjoint_jlongs_atomic(src, dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::oop_copy(oop* src, oop* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy |
| #endif // !PRODUCT |
| assert(count != 0, "count should be non-zero"); |
| ArrayAccess<>::oop_arraycopy_raw((HeapWord*)src, (HeapWord*)dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::oop_copy_uninit(oop* src, oop* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy |
| #endif // !PRODUCT |
| assert(count != 0, "count should be non-zero"); |
| ArrayAccess<IS_DEST_UNINITIALIZED>::oop_arraycopy_raw((HeapWord*)src, (HeapWord*)dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::arrayof_jbyte_copy(HeapWord* src, HeapWord* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_jbyte_array_copy_ctr++; // Slow-path byte array copy |
| #endif // !PRODUCT |
| Copy::arrayof_conjoint_jbytes(src, dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::arrayof_jshort_copy(HeapWord* src, HeapWord* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_jshort_array_copy_ctr++; // Slow-path short/char array copy |
| #endif // !PRODUCT |
| Copy::arrayof_conjoint_jshorts(src, dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::arrayof_jint_copy(HeapWord* src, HeapWord* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_jint_array_copy_ctr++; // Slow-path int/float array copy |
| #endif // !PRODUCT |
| Copy::arrayof_conjoint_jints(src, dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::arrayof_jlong_copy(HeapWord* src, HeapWord* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_jlong_array_copy_ctr++; // Slow-path int/float array copy |
| #endif // !PRODUCT |
| Copy::arrayof_conjoint_jlongs(src, dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::arrayof_oop_copy(HeapWord* src, HeapWord* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy |
| #endif // !PRODUCT |
| assert(count != 0, "count should be non-zero"); |
| ArrayAccess<ARRAYCOPY_ARRAYOF>::oop_arraycopy_raw(src, dest, count); |
| JRT_END |
| |
| JRT_LEAF(void, StubRoutines::arrayof_oop_copy_uninit(HeapWord* src, HeapWord* dest, size_t count)) |
| #ifndef PRODUCT |
| SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy |
| #endif // !PRODUCT |
| assert(count != 0, "count should be non-zero"); |
| ArrayAccess<ARRAYCOPY_ARRAYOF | IS_DEST_UNINITIALIZED>::oop_arraycopy_raw(src, dest, count); |
| JRT_END |
| |
| address StubRoutines::select_fill_function(BasicType t, bool aligned, const char* &name) { |
| #define RETURN_STUB(xxx_fill) { \ |
| name = #xxx_fill; \ |
| return StubRoutines::xxx_fill(); } |
| |
| switch (t) { |
| case T_BYTE: |
| case T_BOOLEAN: |
| if (!aligned) RETURN_STUB(jbyte_fill); |
| RETURN_STUB(arrayof_jbyte_fill); |
| case T_CHAR: |
| case T_SHORT: |
| if (!aligned) RETURN_STUB(jshort_fill); |
| RETURN_STUB(arrayof_jshort_fill); |
| case T_INT: |
| case T_FLOAT: |
| if (!aligned) RETURN_STUB(jint_fill); |
| RETURN_STUB(arrayof_jint_fill); |
| case T_DOUBLE: |
| case T_LONG: |
| case T_ARRAY: |
| case T_OBJECT: |
| case T_NARROWOOP: |
| case T_NARROWKLASS: |
| case T_ADDRESS: |
| case T_VOID: |
| // Currently unsupported |
| return nullptr; |
| |
| default: |
| ShouldNotReachHere(); |
| return nullptr; |
| } |
| |
| #undef RETURN_STUB |
| } |
| |
| // constants for computing the copy function |
| enum { |
| COPYFUNC_UNALIGNED = 0, |
| COPYFUNC_ALIGNED = 1, // src, dest aligned to HeapWordSize |
| COPYFUNC_CONJOINT = 0, |
| COPYFUNC_DISJOINT = 2 // src != dest, or transfer can descend |
| }; |
| |
| // Note: The condition "disjoint" applies also for overlapping copies |
| // where an descending copy is permitted (i.e., dest_offset <= src_offset). |
| address |
| StubRoutines::select_arraycopy_function(BasicType t, bool aligned, bool disjoint, const char* &name, bool dest_uninitialized) { |
| int selector = |
| (aligned ? COPYFUNC_ALIGNED : COPYFUNC_UNALIGNED) + |
| (disjoint ? COPYFUNC_DISJOINT : COPYFUNC_CONJOINT); |
| |
| #define RETURN_STUB(xxx_arraycopy) { \ |
| name = #xxx_arraycopy; \ |
| return StubRoutines::xxx_arraycopy(); } |
| |
| #define RETURN_STUB_PARM(xxx_arraycopy, parm) { \ |
| name = parm ? #xxx_arraycopy "_uninit": #xxx_arraycopy; \ |
| return StubRoutines::xxx_arraycopy(parm); } |
| |
| switch (t) { |
| case T_BYTE: |
| case T_BOOLEAN: |
| switch (selector) { |
| case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jbyte_arraycopy); |
| case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jbyte_arraycopy); |
| case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jbyte_disjoint_arraycopy); |
| case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jbyte_disjoint_arraycopy); |
| } |
| case T_CHAR: |
| case T_SHORT: |
| switch (selector) { |
| case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jshort_arraycopy); |
| case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jshort_arraycopy); |
| case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jshort_disjoint_arraycopy); |
| case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jshort_disjoint_arraycopy); |
| } |
| case T_INT: |
| case T_FLOAT: |
| switch (selector) { |
| case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jint_arraycopy); |
| case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jint_arraycopy); |
| case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jint_disjoint_arraycopy); |
| case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jint_disjoint_arraycopy); |
| } |
| case T_DOUBLE: |
| case T_LONG: |
| switch (selector) { |
| case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jlong_arraycopy); |
| case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jlong_arraycopy); |
| case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED: RETURN_STUB(jlong_disjoint_arraycopy); |
| case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED: RETURN_STUB(arrayof_jlong_disjoint_arraycopy); |
| } |
| case T_ARRAY: |
| case T_OBJECT: |
| switch (selector) { |
| case COPYFUNC_CONJOINT | COPYFUNC_UNALIGNED: RETURN_STUB_PARM(oop_arraycopy, dest_uninitialized); |
| case COPYFUNC_CONJOINT | COPYFUNC_ALIGNED: RETURN_STUB_PARM(arrayof_oop_arraycopy, dest_uninitialized); |
| case COPYFUNC_DISJOINT | COPYFUNC_UNALIGNED: RETURN_STUB_PARM(oop_disjoint_arraycopy, dest_uninitialized); |
| case COPYFUNC_DISJOINT | COPYFUNC_ALIGNED: RETURN_STUB_PARM(arrayof_oop_disjoint_arraycopy, dest_uninitialized); |
| } |
| default: |
| ShouldNotReachHere(); |
| return nullptr; |
| } |
| |
| #undef RETURN_STUB |
| #undef RETURN_STUB_PARM |
| } |
| |
| UnsafeCopyMemoryMark::UnsafeCopyMemoryMark(StubCodeGenerator* cgen, bool add_entry, bool continue_at_scope_end, address error_exit_pc) { |
| _cgen = cgen; |
| _ucm_entry = nullptr; |
| if (add_entry) { |
| address err_exit_pc = nullptr; |
| if (!continue_at_scope_end) { |
| err_exit_pc = error_exit_pc != nullptr ? error_exit_pc : UnsafeCopyMemory::common_exit_stub_pc(); |
| } |
| assert(err_exit_pc != nullptr || continue_at_scope_end, "error exit not set"); |
| _ucm_entry = UnsafeCopyMemory::add_to_table(_cgen->assembler()->pc(), nullptr, err_exit_pc); |
| } |
| } |
| |
| UnsafeCopyMemoryMark::~UnsafeCopyMemoryMark() { |
| if (_ucm_entry != nullptr) { |
| _ucm_entry->set_end_pc(_cgen->assembler()->pc()); |
| if (_ucm_entry->error_exit_pc() == nullptr) { |
| _ucm_entry->set_error_exit_pc(_cgen->assembler()->pc()); |
| } |
| } |
| } |
