| /* |
| * Copyright (c) 2013, 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 "ci/ciMethodData.hpp" |
| #include "ci/ciReplay.hpp" |
| #include "ci/ciSymbol.hpp" |
| #include "ci/ciKlass.hpp" |
| #include "ci/ciUtilities.inline.hpp" |
| #include "classfile/javaClasses.hpp" |
| #include "classfile/symbolTable.hpp" |
| #include "classfile/systemDictionary.hpp" |
| #include "compiler/compilationPolicy.hpp" |
| #include "compiler/compileBroker.hpp" |
| #include "compiler/compilerDefinitions.inline.hpp" |
| #include "interpreter/linkResolver.hpp" |
| #include "jvm.h" |
| #include "memory/allocation.inline.hpp" |
| #include "memory/oopFactory.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "oops/constantPool.hpp" |
| #include "oops/cpCache.inline.hpp" |
| #include "oops/fieldStreams.inline.hpp" |
| #include "oops/klass.inline.hpp" |
| #include "oops/method.inline.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "prims/jvmtiExport.hpp" |
| #include "prims/methodHandles.hpp" |
| #include "runtime/fieldDescriptor.inline.hpp" |
| #include "runtime/globals_extension.hpp" |
| #include "runtime/handles.inline.hpp" |
| #include "runtime/java.hpp" |
| #include "runtime/jniHandles.inline.hpp" |
| #include "runtime/threads.hpp" |
| #include "utilities/copy.hpp" |
| #include "utilities/macros.hpp" |
| #include "utilities/utf8.hpp" |
| |
| // ciReplay |
| |
| typedef struct _ciMethodDataRecord { |
| const char* _klass_name; |
| const char* _method_name; |
| const char* _signature; |
| |
| int _state; |
| int _invocation_counter; |
| |
| intptr_t* _data; |
| char* _orig_data; |
| Klass** _classes; |
| Method** _methods; |
| int* _classes_offsets; |
| int* _methods_offsets; |
| int _data_length; |
| int _orig_data_length; |
| int _classes_length; |
| int _methods_length; |
| } ciMethodDataRecord; |
| |
| typedef struct _ciMethodRecord { |
| const char* _klass_name; |
| const char* _method_name; |
| const char* _signature; |
| |
| int _instructions_size; |
| int _interpreter_invocation_count; |
| int _interpreter_throwout_count; |
| int _invocation_counter; |
| int _backedge_counter; |
| } ciMethodRecord; |
| |
| typedef struct _ciInstanceKlassRecord { |
| const InstanceKlass* _klass; |
| jobject _java_mirror; // Global handle to java mirror to prevent unloading |
| } ciInstanceKlassRecord; |
| |
| typedef struct _ciInlineRecord { |
| const char* _klass_name; |
| const char* _method_name; |
| const char* _signature; |
| |
| int _inline_depth; |
| int _inline_bci; |
| bool _inline_late; |
| } ciInlineRecord; |
| |
| class CompileReplay; |
| static CompileReplay* replay_state; |
| |
| class CompileReplay : public StackObj { |
| private: |
| FILE* _stream; |
| Thread* _thread; |
| Handle _protection_domain; |
| bool _protection_domain_initialized; |
| Handle _loader; |
| int _version; |
| |
| GrowableArray<ciMethodRecord*> _ci_method_records; |
| GrowableArray<ciMethodDataRecord*> _ci_method_data_records; |
| GrowableArray<ciInstanceKlassRecord*> _ci_instance_klass_records; |
| |
| // Use pointer because we may need to return inline records |
| // without destroying them. |
| GrowableArray<ciInlineRecord*>* _ci_inline_records; |
| |
| const char* _error_message; |
| |
| char* _bufptr; |
| char* _buffer; |
| int _buffer_length; |
| |
| // "compile" data |
| ciKlass* _iklass; |
| Method* _imethod; |
| int _entry_bci; |
| int _comp_level; |
| |
| public: |
| CompileReplay(const char* filename, TRAPS) { |
| _thread = THREAD; |
| _loader = Handle(_thread, SystemDictionary::java_system_loader()); |
| _protection_domain = Handle(); |
| _protection_domain_initialized = false; |
| |
| _stream = os::fopen(filename, "rt"); |
| if (_stream == nullptr) { |
| fprintf(stderr, "ERROR: Can't open replay file %s\n", filename); |
| } |
| |
| _ci_inline_records = nullptr; |
| _error_message = nullptr; |
| |
| _buffer_length = 32; |
| _buffer = NEW_RESOURCE_ARRAY(char, _buffer_length); |
| _bufptr = _buffer; |
| |
| _imethod = nullptr; |
| _iklass = nullptr; |
| _entry_bci = 0; |
| _comp_level = 0; |
| _version = 0; |
| |
| test(); |
| } |
| |
| ~CompileReplay() { |
| if (_stream != nullptr) fclose(_stream); |
| } |
| |
| void test() { |
| strcpy(_buffer, "1 2 foo 4 bar 0x9 \"this is it\""); |
| _bufptr = _buffer; |
| assert(parse_int("test") == 1, "what"); |
| assert(parse_int("test") == 2, "what"); |
| assert(strcmp(parse_string(), "foo") == 0, "what"); |
| assert(parse_int("test") == 4, "what"); |
| assert(strcmp(parse_string(), "bar") == 0, "what"); |
| assert(parse_intptr_t("test") == 9, "what"); |
| assert(strcmp(parse_quoted_string(), "this is it") == 0, "what"); |
| } |
| |
| bool had_error() { |
| return _error_message != nullptr || _thread->has_pending_exception(); |
| } |
| |
| bool can_replay() { |
| return !(_stream == nullptr || had_error()); |
| } |
| |
| void report_error(const char* msg) { |
| _error_message = msg; |
| } |
| |
| int parse_int(const char* label) { |
| if (had_error()) { |
| return 0; |
| } |
| |
| int v = 0; |
| int read; |
| if (sscanf(_bufptr, "%i%n", &v, &read) != 1) { |
| report_error(label); |
| } else { |
| _bufptr += read; |
| } |
| return v; |
| } |
| |
| intptr_t parse_intptr_t(const char* label) { |
| if (had_error()) { |
| return 0; |
| } |
| |
| intptr_t v = 0; |
| int read; |
| if (sscanf(_bufptr, INTPTR_FORMAT "%n", &v, &read) != 1) { |
| report_error(label); |
| } else { |
| _bufptr += read; |
| } |
| return v; |
| } |
| |
| void skip_ws() { |
| // Skip any leading whitespace |
| while (*_bufptr == ' ' || *_bufptr == '\t') { |
| _bufptr++; |
| } |
| } |
| |
| // Ignore the rest of the line |
| void skip_remaining() { |
| _bufptr = &_bufptr[strlen(_bufptr)]; // skip ahead to terminator |
| } |
| |
| char* scan_and_terminate(char delim) { |
| char* str = _bufptr; |
| while (*_bufptr != delim && *_bufptr != '\0') { |
| _bufptr++; |
| } |
| if (*_bufptr != '\0') { |
| *_bufptr++ = '\0'; |
| } |
| if (_bufptr == str) { |
| // nothing here |
| return nullptr; |
| } |
| return str; |
| } |
| |
| char* parse_string() { |
| if (had_error()) return nullptr; |
| |
| skip_ws(); |
| return scan_and_terminate(' '); |
| } |
| |
| char* parse_quoted_string() { |
| if (had_error()) return nullptr; |
| |
| skip_ws(); |
| |
| if (*_bufptr == '"') { |
| _bufptr++; |
| return scan_and_terminate('"'); |
| } else { |
| return scan_and_terminate(' '); |
| } |
| } |
| |
| char* parse_escaped_string() { |
| char* result = parse_quoted_string(); |
| if (result != nullptr) { |
| unescape_string(result); |
| } |
| return result; |
| } |
| |
| // Look for the tag 'tag' followed by an |
| bool parse_tag_and_count(const char* tag, int& length) { |
| const char* t = parse_string(); |
| if (t == nullptr) { |
| return false; |
| } |
| |
| if (strcmp(tag, t) != 0) { |
| report_error(tag); |
| return false; |
| } |
| length = parse_int("parse_tag_and_count"); |
| return !had_error(); |
| } |
| |
| // Parse a sequence of raw data encoded as bytes and return the |
| // resulting data. |
| char* parse_data(const char* tag, int& length) { |
| int read_size = 0; |
| if (!parse_tag_and_count(tag, read_size)) { |
| return nullptr; |
| } |
| |
| int actual_size = sizeof(MethodData::CompilerCounters); |
| char *result = NEW_RESOURCE_ARRAY(char, actual_size); |
| int i = 0; |
| if (read_size != actual_size) { |
| tty->print_cr("Warning: ciMethodData parsing sees MethodData size %i in file, current is %i", read_size, |
| actual_size); |
| // Replay serializes the entire MethodData, but the data is at the end. |
| // If the MethodData instance size has changed, we can pad or truncate in the beginning |
| int padding = actual_size - read_size; |
| if (padding > 0) { |
| // pad missing data with zeros |
| tty->print_cr("- Padding MethodData"); |
| for (; i < padding; i++) { |
| result[i] = 0; |
| } |
| } else if (padding < 0) { |
| // drop some data |
| tty->print_cr("- Truncating MethodData"); |
| for (int j = 0; j < -padding; j++) { |
| int val = parse_int("data"); |
| // discard val |
| } |
| } |
| } |
| |
| assert(i < actual_size, "At least some data must remain to be copied"); |
| for (; i < actual_size; i++) { |
| int val = parse_int("data"); |
| result[i] = val; |
| } |
| length = actual_size; |
| return result; |
| } |
| |
| // Parse a standard chunk of data emitted as: |
| // 'tag' <length> # # ... |
| // Where each # is an intptr_t item |
| intptr_t* parse_intptr_data(const char* tag, int& length) { |
| if (!parse_tag_and_count(tag, length)) { |
| return nullptr; |
| } |
| |
| intptr_t* result = NEW_RESOURCE_ARRAY(intptr_t, length); |
| for (int i = 0; i < length; i++) { |
| skip_ws(); |
| intptr_t val = parse_intptr_t("data"); |
| result[i] = val; |
| } |
| return result; |
| } |
| |
| // Parse a possibly quoted version of a symbol into a symbolOop |
| Symbol* parse_symbol() { |
| const char* str = parse_escaped_string(); |
| if (str != nullptr) { |
| Symbol* sym = SymbolTable::new_symbol(str); |
| return sym; |
| } |
| return nullptr; |
| } |
| |
| bool parse_terminator() { |
| char* terminator = parse_string(); |
| if (terminator != nullptr && strcmp(terminator, ";") == 0) { |
| return true; |
| } |
| return false; |
| } |
| |
| // Parse a special hidden klass location syntax |
| // syntax: @bci <klass> <name> <signature> <bci> <location>* ; |
| // syntax: @cpi <klass> <cpi> <location>* ; |
| Klass* parse_cp_ref(TRAPS) { |
| JavaThread* thread = THREAD; |
| oop obj = nullptr; |
| char* ref = parse_string(); |
| if (strcmp(ref, "bci") == 0) { |
| Method* m = parse_method(CHECK_NULL); |
| if (m == nullptr) { |
| return nullptr; |
| } |
| |
| InstanceKlass* ik = m->method_holder(); |
| const constantPoolHandle cp(Thread::current(), ik->constants()); |
| |
| // invokedynamic or invokehandle |
| |
| methodHandle caller(Thread::current(), m); |
| int bci = parse_int("bci"); |
| if (m->validate_bci(bci) != bci) { |
| report_error("bad bci"); |
| return nullptr; |
| } |
| |
| ik->link_class(CHECK_NULL); |
| |
| Bytecode_invoke bytecode = Bytecode_invoke_check(caller, bci); |
| if (!Bytecodes::is_defined(bytecode.code()) || !bytecode.is_valid()) { |
| report_error("no invoke found at bci"); |
| return nullptr; |
| } |
| bytecode.verify(); |
| int index = bytecode.index(); |
| |
| ConstantPoolCacheEntry* cp_cache_entry = nullptr; |
| CallInfo callInfo; |
| Bytecodes::Code bc = bytecode.invoke_code(); |
| LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, bc, CHECK_NULL); |
| |
| // ResolvedIndyEntry and ConstantPoolCacheEntry must currently coexist. |
| // To address this, the variables below contain the values that *might* |
| // be used to avoid multiple blocks of similar code. When CPCE is obsoleted |
| // these can be removed |
| oop appendix = nullptr; |
| Method* adapter_method = nullptr; |
| int pool_index = 0; |
| |
| if (bytecode.is_invokedynamic()) { |
| index = cp->decode_invokedynamic_index(index); |
| cp->cache()->set_dynamic_call(callInfo, index); |
| |
| appendix = cp->resolved_reference_from_indy(index); |
| adapter_method = cp->resolved_indy_entry_at(index)->method(); |
| pool_index = cp->resolved_indy_entry_at(index)->constant_pool_index(); |
| } else if (bytecode.is_invokehandle()) { |
| #ifdef ASSERT |
| Klass* holder = cp->klass_ref_at(index, bytecode.code(), CHECK_NULL); |
| Symbol* name = cp->name_ref_at(index, bytecode.code()); |
| assert(MethodHandles::is_signature_polymorphic_name(holder, name), ""); |
| #endif |
| cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index)); |
| cp_cache_entry->set_method_handle(cp, callInfo); |
| |
| appendix = cp_cache_entry->appendix_if_resolved(cp); |
| adapter_method = cp_cache_entry->f1_as_method(); |
| pool_index = cp_cache_entry->constant_pool_index(); |
| } else { |
| report_error("no dynamic invoke found"); |
| return nullptr; |
| } |
| char* dyno_ref = parse_string(); |
| if (strcmp(dyno_ref, "<appendix>") == 0) { |
| obj = appendix; |
| } else if (strcmp(dyno_ref, "<adapter>") == 0) { |
| if (!parse_terminator()) { |
| report_error("no dynamic invoke found"); |
| return nullptr; |
| } |
| Method* adapter = adapter_method; |
| if (adapter == nullptr) { |
| report_error("no adapter found"); |
| return nullptr; |
| } |
| return adapter->method_holder(); |
| } else if (strcmp(dyno_ref, "<bsm>") == 0) { |
| BootstrapInfo bootstrap_specifier(cp, pool_index, index); |
| obj = cp->resolve_possibly_cached_constant_at(bootstrap_specifier.bsm_index(), CHECK_NULL); |
| } else { |
| report_error("unrecognized token"); |
| return nullptr; |
| } |
| } else { |
| // constant pool ref (MethodHandle) |
| if (strcmp(ref, "cpi") != 0) { |
| report_error("unexpected token"); |
| return nullptr; |
| } |
| |
| Klass* k = parse_klass(CHECK_NULL); |
| if (k == nullptr) { |
| return nullptr; |
| } |
| InstanceKlass* ik = InstanceKlass::cast(k); |
| const constantPoolHandle cp(Thread::current(), ik->constants()); |
| |
| int cpi = parse_int("cpi"); |
| |
| if (cpi >= cp->length()) { |
| report_error("bad cpi"); |
| return nullptr; |
| } |
| if (!cp->tag_at(cpi).is_method_handle()) { |
| report_error("no method handle found at cpi"); |
| return nullptr; |
| } |
| ik->link_class(CHECK_NULL); |
| obj = cp->resolve_possibly_cached_constant_at(cpi, CHECK_NULL); |
| } |
| if (obj == nullptr) { |
| report_error("null cp object found"); |
| return nullptr; |
| } |
| Klass* k = nullptr; |
| skip_ws(); |
| // loop: read fields |
| char* field = nullptr; |
| do { |
| field = parse_string(); |
| if (field == nullptr) { |
| report_error("no field found"); |
| return nullptr; |
| } |
| if (strcmp(field, ";") == 0) { |
| break; |
| } |
| // raw Method* |
| if (strcmp(field, "<vmtarget>") == 0) { |
| Method* vmtarget = java_lang_invoke_MemberName::vmtarget(obj); |
| k = (vmtarget == nullptr) ? nullptr : vmtarget->method_holder(); |
| if (k == nullptr) { |
| report_error("null vmtarget found"); |
| return nullptr; |
| } |
| if (!parse_terminator()) { |
| report_error("missing terminator"); |
| return nullptr; |
| } |
| return k; |
| } |
| obj = ciReplay::obj_field(obj, field); |
| // array |
| if (obj != nullptr && obj->is_objArray()) { |
| objArrayOop arr = (objArrayOop)obj; |
| int index = parse_int("index"); |
| if (index >= arr->length()) { |
| report_error("bad array index"); |
| return nullptr; |
| } |
| obj = arr->obj_at(index); |
| } |
| } while (obj != nullptr); |
| if (obj == nullptr) { |
| report_error("null field found"); |
| return nullptr; |
| } |
| k = obj->klass(); |
| return k; |
| } |
| |
| // Parse a valid klass name and look it up |
| // syntax: <name> |
| // syntax: <constant pool ref> |
| Klass* parse_klass(TRAPS) { |
| skip_ws(); |
| // check for constant pool object reference (for a dynamic/hidden class) |
| bool cp_ref = (*_bufptr == '@'); |
| if (cp_ref) { |
| ++_bufptr; |
| Klass* k = parse_cp_ref(CHECK_NULL); |
| if (k != nullptr && !k->is_hidden()) { |
| report_error("expected hidden class"); |
| return nullptr; |
| } |
| return k; |
| } |
| char* str = parse_escaped_string(); |
| Symbol* klass_name = SymbolTable::new_symbol(str); |
| if (klass_name != nullptr) { |
| Klass* k = nullptr; |
| if (_iklass != nullptr) { |
| k = (Klass*)_iklass->find_klass(ciSymbol::make(klass_name->as_C_string()))->constant_encoding(); |
| } else { |
| k = SystemDictionary::resolve_or_fail(klass_name, _loader, _protection_domain, true, THREAD); |
| } |
| if (HAS_PENDING_EXCEPTION) { |
| oop throwable = PENDING_EXCEPTION; |
| java_lang_Throwable::print(throwable, tty); |
| tty->cr(); |
| report_error(str); |
| if (ReplayIgnoreInitErrors) { |
| CLEAR_PENDING_EXCEPTION; |
| _error_message = nullptr; |
| } |
| return nullptr; |
| } |
| return k; |
| } |
| return nullptr; |
| } |
| |
| // Lookup a klass |
| Klass* resolve_klass(const char* klass, TRAPS) { |
| Symbol* klass_name = SymbolTable::new_symbol(klass); |
| return SystemDictionary::resolve_or_fail(klass_name, _loader, _protection_domain, true, THREAD); |
| } |
| |
| // Parse the standard tuple of <klass> <name> <signature> |
| Method* parse_method(TRAPS) { |
| InstanceKlass* k = (InstanceKlass*)parse_klass(CHECK_NULL); |
| if (k == nullptr) { |
| report_error("Can't find holder klass"); |
| return nullptr; |
| } |
| Symbol* method_name = parse_symbol(); |
| Symbol* method_signature = parse_symbol(); |
| Method* m = k->find_method(method_name, method_signature); |
| if (m == nullptr) { |
| report_error("Can't find method"); |
| } |
| return m; |
| } |
| |
| int get_line(int c) { |
| int buffer_pos = 0; |
| while(c != EOF) { |
| if (buffer_pos + 1 >= _buffer_length) { |
| int new_length = _buffer_length * 2; |
| // Next call will throw error in case of OOM. |
| _buffer = REALLOC_RESOURCE_ARRAY(char, _buffer, _buffer_length, new_length); |
| _buffer_length = new_length; |
| } |
| if (c == '\n') { |
| c = getc(_stream); // get next char |
| break; |
| } else if (c == '\r') { |
| // skip LF |
| } else { |
| _buffer[buffer_pos++] = c; |
| } |
| c = getc(_stream); |
| } |
| // null terminate it, reset the pointer |
| _buffer[buffer_pos] = '\0'; // NL or EOF |
| _bufptr = _buffer; |
| return c; |
| } |
| |
| // Process each line of the replay file executing each command until |
| // the file ends. |
| void process(TRAPS) { |
| int line_no = 1; |
| int c = getc(_stream); |
| while(c != EOF) { |
| c = get_line(c); |
| process_command(false, THREAD); |
| if (had_error()) { |
| int pos = _bufptr - _buffer + 1; |
| tty->print_cr("Error while parsing line %d at position %d: %s\n", line_no, pos, _error_message); |
| if (ReplayIgnoreInitErrors) { |
| CLEAR_PENDING_EXCEPTION; |
| _error_message = nullptr; |
| } else { |
| return; |
| } |
| } |
| line_no++; |
| } |
| reset(); |
| } |
| |
| void process_command(bool is_replay_inline, TRAPS) { |
| char* cmd = parse_string(); |
| if (cmd == nullptr) { |
| return; |
| } |
| if (strcmp("#", cmd) == 0) { |
| // comment line, print or ignore |
| if (Verbose) { |
| tty->print_cr("# %s", _bufptr); |
| } |
| skip_remaining(); |
| } else if (strcmp("version", cmd) == 0) { |
| _version = parse_int("version"); |
| if (_version < 0 || _version > REPLAY_VERSION) { |
| tty->print_cr("# unrecognized version %d, expected 0 <= version <= %d", _version, REPLAY_VERSION); |
| } |
| } else if (strcmp("compile", cmd) == 0) { |
| process_compile(CHECK); |
| } else if (!is_replay_inline) { |
| if (strcmp("ciMethod", cmd) == 0) { |
| process_ciMethod(CHECK); |
| } else if (strcmp("ciMethodData", cmd) == 0) { |
| process_ciMethodData(CHECK); |
| } else if (strcmp("staticfield", cmd) == 0) { |
| process_staticfield(CHECK); |
| } else if (strcmp("ciInstanceKlass", cmd) == 0) { |
| process_ciInstanceKlass(CHECK); |
| } else if (strcmp("instanceKlass", cmd) == 0) { |
| process_instanceKlass(CHECK); |
| #if INCLUDE_JVMTI |
| } else if (strcmp("JvmtiExport", cmd) == 0) { |
| process_JvmtiExport(CHECK); |
| #endif // INCLUDE_JVMTI |
| } else { |
| report_error("unknown command"); |
| } |
| } else { |
| report_error("unknown command"); |
| } |
| if (!had_error() && *_bufptr != '\0') { |
| report_error("line not properly terminated"); |
| } |
| } |
| |
| // validation of comp_level |
| bool is_valid_comp_level(int comp_level) { |
| const int msg_len = 256; |
| char* msg = nullptr; |
| if (!is_compile(comp_level)) { |
| msg = NEW_RESOURCE_ARRAY(char, msg_len); |
| jio_snprintf(msg, msg_len, "%d isn't compilation level", comp_level); |
| } else if (is_c1_compile(comp_level) && !CompilerConfig::is_c1_enabled()) { |
| msg = NEW_RESOURCE_ARRAY(char, msg_len); |
| jio_snprintf(msg, msg_len, "compilation level %d requires C1", comp_level); |
| } else if (is_c2_compile(comp_level) && !CompilerConfig::is_c2_enabled()) { |
| msg = NEW_RESOURCE_ARRAY(char, msg_len); |
| jio_snprintf(msg, msg_len, "compilation level %d requires C2", comp_level); |
| } |
| if (msg != nullptr) { |
| report_error(msg); |
| return false; |
| } |
| return true; |
| } |
| |
| // compile <klass> <name> <signature> <entry_bci> <comp_level> inline <count> (<depth> <bci> <klass> <name> <signature>)* |
| void* process_inline(ciMethod* imethod, Method* m, int entry_bci, int comp_level, TRAPS) { |
| _imethod = m; |
| _iklass = imethod->holder(); |
| _entry_bci = entry_bci; |
| _comp_level = comp_level; |
| int line_no = 1; |
| int c = getc(_stream); |
| while(c != EOF) { |
| c = get_line(c); |
| process_command(true, CHECK_NULL); |
| if (had_error()) { |
| tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message); |
| tty->print_cr("%s", _buffer); |
| return nullptr; |
| } |
| if (_ci_inline_records != nullptr && _ci_inline_records->length() > 0) { |
| // Found inlining record for the requested method. |
| return _ci_inline_records; |
| } |
| line_no++; |
| } |
| return nullptr; |
| } |
| |
| // compile <klass> <name> <signature> <entry_bci> <comp_level> inline <count> (<depth> <bci> <inline_late> <klass> <name> <signature>)* |
| void process_compile(TRAPS) { |
| Method* method = parse_method(CHECK); |
| if (had_error()) return; |
| int entry_bci = parse_int("entry_bci"); |
| int comp_level = parse_int("comp_level"); |
| if (!is_valid_comp_level(comp_level)) { |
| return; |
| } |
| if (_imethod != nullptr) { |
| // Replay Inlining |
| if (entry_bci != _entry_bci || comp_level != _comp_level) { |
| return; |
| } |
| const char* iklass_name = _imethod->method_holder()->name()->as_utf8(); |
| const char* imethod_name = _imethod->name()->as_utf8(); |
| const char* isignature = _imethod->signature()->as_utf8(); |
| const char* klass_name = method->method_holder()->name()->as_utf8(); |
| const char* method_name = method->name()->as_utf8(); |
| const char* signature = method->signature()->as_utf8(); |
| if (strcmp(iklass_name, klass_name) != 0 || |
| strcmp(imethod_name, method_name) != 0 || |
| strcmp(isignature, signature) != 0) { |
| return; |
| } |
| } |
| int inline_count = 0; |
| if (parse_tag_and_count("inline", inline_count)) { |
| // Record inlining data |
| _ci_inline_records = new GrowableArray<ciInlineRecord*>(); |
| for (int i = 0; i < inline_count; i++) { |
| int depth = parse_int("inline_depth"); |
| int bci = parse_int("inline_bci"); |
| if (had_error()) { |
| break; |
| } |
| int inline_late = 0; |
| if (_version >= 2) { |
| inline_late = parse_int("inline_late"); |
| if (had_error()) { |
| break; |
| } |
| } |
| |
| Method* inl_method = parse_method(CHECK); |
| if (had_error()) { |
| break; |
| } |
| new_ciInlineRecord(inl_method, bci, depth, inline_late); |
| } |
| } |
| if (_imethod != nullptr) { |
| return; // Replay Inlining |
| } |
| InstanceKlass* ik = method->method_holder(); |
| ik->initialize(THREAD); |
| if (HAS_PENDING_EXCEPTION) { |
| oop throwable = PENDING_EXCEPTION; |
| java_lang_Throwable::print(throwable, tty); |
| tty->cr(); |
| if (ReplayIgnoreInitErrors) { |
| CLEAR_PENDING_EXCEPTION; |
| ik->set_init_state(InstanceKlass::fully_initialized); |
| } else { |
| return; |
| } |
| } |
| // Make sure the existence of a prior compile doesn't stop this one |
| CompiledMethod* nm = (entry_bci != InvocationEntryBci) ? method->lookup_osr_nmethod_for(entry_bci, comp_level, true) : method->code(); |
| if (nm != nullptr) { |
| nm->make_not_entrant(); |
| } |
| replay_state = this; |
| CompileBroker::compile_method(methodHandle(THREAD, method), entry_bci, comp_level, |
| methodHandle(), 0, CompileTask::Reason_Replay, THREAD); |
| replay_state = nullptr; |
| } |
| |
| // ciMethod <klass> <name> <signature> <invocation_counter> <backedge_counter> <interpreter_invocation_count> <interpreter_throwout_count> <instructions_size> |
| void process_ciMethod(TRAPS) { |
| Method* method = parse_method(CHECK); |
| if (had_error()) return; |
| ciMethodRecord* rec = new_ciMethod(method); |
| rec->_invocation_counter = parse_int("invocation_counter"); |
| rec->_backedge_counter = parse_int("backedge_counter"); |
| rec->_interpreter_invocation_count = parse_int("interpreter_invocation_count"); |
| rec->_interpreter_throwout_count = parse_int("interpreter_throwout_count"); |
| rec->_instructions_size = parse_int("instructions_size"); |
| } |
| |
| // ciMethodData <klass> <name> <signature> <state> <invocation_counter> orig <length> <byte>* data <length> <ptr>* oops <length> (<offset> <klass>)* methods <length> (<offset> <klass> <name> <signature>)* |
| void process_ciMethodData(TRAPS) { |
| Method* method = parse_method(CHECK); |
| if (had_error()) return; |
| /* just copied from Method, to build interpret data*/ |
| |
| // To be properly initialized, some profiling in the MDO needs the |
| // method to be rewritten (number of arguments at a call for instance) |
| method->method_holder()->link_class(CHECK); |
| assert(method->method_data() == nullptr, "Should only be initialized once"); |
| ClassLoaderData* loader_data = method->method_holder()->class_loader_data(); |
| MethodData* method_data = MethodData::allocate(loader_data, methodHandle(THREAD, method), CHECK); |
| method->set_method_data(method_data); |
| |
| // collect and record all the needed information for later |
| ciMethodDataRecord* rec = new_ciMethodData(method); |
| rec->_state = parse_int("state"); |
| if (_version < 1) { |
| parse_int("current_mileage"); |
| } else { |
| rec->_invocation_counter = parse_int("invocation_counter"); |
| } |
| |
| rec->_orig_data = parse_data("orig", rec->_orig_data_length); |
| if (rec->_orig_data == nullptr) { |
| return; |
| } |
| rec->_data = parse_intptr_data("data", rec->_data_length); |
| if (rec->_data == nullptr) { |
| return; |
| } |
| if (!parse_tag_and_count("oops", rec->_classes_length)) { |
| return; |
| } |
| rec->_classes = NEW_RESOURCE_ARRAY(Klass*, rec->_classes_length); |
| rec->_classes_offsets = NEW_RESOURCE_ARRAY(int, rec->_classes_length); |
| for (int i = 0; i < rec->_classes_length; i++) { |
| int offset = parse_int("offset"); |
| if (had_error()) { |
| return; |
| } |
| Klass* k = parse_klass(CHECK); |
| rec->_classes_offsets[i] = offset; |
| rec->_classes[i] = k; |
| } |
| |
| if (!parse_tag_and_count("methods", rec->_methods_length)) { |
| return; |
| } |
| rec->_methods = NEW_RESOURCE_ARRAY(Method*, rec->_methods_length); |
| rec->_methods_offsets = NEW_RESOURCE_ARRAY(int, rec->_methods_length); |
| for (int i = 0; i < rec->_methods_length; i++) { |
| int offset = parse_int("offset"); |
| if (had_error()) { |
| return; |
| } |
| Method* m = parse_method(CHECK); |
| rec->_methods_offsets[i] = offset; |
| rec->_methods[i] = m; |
| } |
| } |
| |
| // instanceKlass <name> |
| // instanceKlass <constant pool ref> # <original hidden class name> |
| // |
| // Loads and initializes the klass 'name'. This can be used to |
| // create particular class loading environments |
| void process_instanceKlass(TRAPS) { |
| // just load the referenced class |
| Klass* k = parse_klass(CHECK); |
| |
| if (_version >= 1) { |
| if (!_protection_domain_initialized && k != nullptr) { |
| assert(_protection_domain() == nullptr, "must be uninitialized"); |
| // The first entry is the holder class of the method for which a replay compilation is requested. |
| // Use the same protection domain to load all subsequent classes in order to resolve all classes |
| // in signatures of inlinees. This ensures that inlining can be done as stated in the replay file. |
| _protection_domain = Handle(_thread, k->protection_domain()); |
| } |
| |
| _protection_domain_initialized = true; |
| } |
| |
| if (k == nullptr) { |
| return; |
| } |
| const char* comment = parse_string(); |
| bool is_comment = comment != nullptr && strcmp(comment, "#") == 0; |
| if (k->is_hidden() != is_comment) { |
| report_error("hidden class with comment expected"); |
| return; |
| } |
| // comment, print or ignore |
| if (is_comment) { |
| if (Verbose) { |
| const char* hidden = parse_string(); |
| tty->print_cr("Found %s for %s", k->name()->as_quoted_ascii(), hidden); |
| } |
| skip_remaining(); |
| } |
| } |
| |
| // ciInstanceKlass <name> <is_linked> <is_initialized> <length> tag* |
| // |
| // Load the klass 'name' and link or initialize it. Verify that the |
| // constant pool is the same length as 'length' and make sure the |
| // constant pool tags are in the same state. |
| void process_ciInstanceKlass(TRAPS) { |
| InstanceKlass* k = (InstanceKlass*)parse_klass(CHECK); |
| if (k == nullptr) { |
| skip_remaining(); |
| return; |
| } |
| int is_linked = parse_int("is_linked"); |
| int is_initialized = parse_int("is_initialized"); |
| int length = parse_int("length"); |
| if (is_initialized) { |
| k->initialize(THREAD); |
| if (HAS_PENDING_EXCEPTION) { |
| oop throwable = PENDING_EXCEPTION; |
| java_lang_Throwable::print(throwable, tty); |
| tty->cr(); |
| if (ReplayIgnoreInitErrors) { |
| CLEAR_PENDING_EXCEPTION; |
| k->set_init_state(InstanceKlass::fully_initialized); |
| } else { |
| return; |
| } |
| } |
| } else if (is_linked) { |
| k->link_class(CHECK); |
| } |
| new_ciInstanceKlass(k); |
| ConstantPool* cp = k->constants(); |
| if (length != cp->length()) { |
| report_error("constant pool length mismatch: wrong class files?"); |
| return; |
| } |
| |
| int parsed_two_word = 0; |
| for (int i = 1; i < length; i++) { |
| int tag = parse_int("tag"); |
| if (had_error()) { |
| return; |
| } |
| switch (cp->tag_at(i).value()) { |
| case JVM_CONSTANT_UnresolvedClass: { |
| if (tag == JVM_CONSTANT_Class) { |
| tty->print_cr("Resolving klass %s at %d", cp->klass_name_at(i)->as_utf8(), i); |
| Klass* k = cp->klass_at(i, CHECK); |
| } |
| break; |
| } |
| case JVM_CONSTANT_Long: |
| case JVM_CONSTANT_Double: |
| parsed_two_word = i + 1; |
| |
| case JVM_CONSTANT_ClassIndex: |
| case JVM_CONSTANT_StringIndex: |
| case JVM_CONSTANT_String: |
| case JVM_CONSTANT_UnresolvedClassInError: |
| case JVM_CONSTANT_Fieldref: |
| case JVM_CONSTANT_Methodref: |
| case JVM_CONSTANT_InterfaceMethodref: |
| case JVM_CONSTANT_NameAndType: |
| case JVM_CONSTANT_Utf8: |
| case JVM_CONSTANT_Integer: |
| case JVM_CONSTANT_Float: |
| case JVM_CONSTANT_MethodHandle: |
| case JVM_CONSTANT_MethodType: |
| case JVM_CONSTANT_Dynamic: |
| case JVM_CONSTANT_InvokeDynamic: |
| if (tag != cp->tag_at(i).value()) { |
| report_error("tag mismatch: wrong class files?"); |
| return; |
| } |
| break; |
| |
| case JVM_CONSTANT_Class: |
| if (tag == JVM_CONSTANT_UnresolvedClass) { |
| Klass* k = cp->klass_at(i, CHECK); |
| tty->print_cr("Warning: entry was unresolved in the replay data: %s", k->name()->as_utf8()); |
| } else if (tag != JVM_CONSTANT_Class) { |
| report_error("Unexpected tag"); |
| return; |
| } |
| break; |
| |
| case 0: |
| if (parsed_two_word == i) continue; |
| |
| default: |
| fatal("Unexpected tag: %d", cp->tag_at(i).value()); |
| break; |
| } |
| |
| } |
| } |
| |
| // staticfield <klass> <name> <signature> <value> |
| // |
| // Initialize a class and fill in the value for a static field. |
| // This is useful when the compile was dependent on the value of |
| // static fields but it's impossible to properly rerun the static |
| // initializer. |
| void process_staticfield(TRAPS) { |
| InstanceKlass* k = (InstanceKlass *)parse_klass(CHECK); |
| |
| if (k == nullptr || ReplaySuppressInitializers == 0 || |
| (ReplaySuppressInitializers == 2 && k->class_loader() == nullptr)) { |
| skip_remaining(); |
| return; |
| } |
| |
| assert(k->is_initialized(), "must be"); |
| |
| const char* field_name = parse_escaped_string(); |
| const char* field_signature = parse_string(); |
| fieldDescriptor fd; |
| Symbol* name = SymbolTable::new_symbol(field_name); |
| Symbol* sig = SymbolTable::new_symbol(field_signature); |
| if (!k->find_local_field(name, sig, &fd) || |
| !fd.is_static() || |
| fd.has_initial_value()) { |
| report_error(field_name); |
| return; |
| } |
| |
| oop java_mirror = k->java_mirror(); |
| if (field_signature[0] == JVM_SIGNATURE_ARRAY) { |
| int length = parse_int("array length"); |
| oop value = nullptr; |
| |
| if (field_signature[1] == JVM_SIGNATURE_ARRAY) { |
| // multi dimensional array |
| ArrayKlass* kelem = (ArrayKlass *)parse_klass(CHECK); |
| if (kelem == nullptr) { |
| return; |
| } |
| int rank = 0; |
| while (field_signature[rank] == JVM_SIGNATURE_ARRAY) { |
| rank++; |
| } |
| jint* dims = NEW_RESOURCE_ARRAY(jint, rank); |
| dims[0] = length; |
| for (int i = 1; i < rank; i++) { |
| dims[i] = 1; // These aren't relevant to the compiler |
| } |
| value = kelem->multi_allocate(rank, dims, CHECK); |
| } else { |
| if (strcmp(field_signature, "[B") == 0) { |
| value = oopFactory::new_byteArray(length, CHECK); |
| } else if (strcmp(field_signature, "[Z") == 0) { |
| value = oopFactory::new_boolArray(length, CHECK); |
| } else if (strcmp(field_signature, "[C") == 0) { |
| value = oopFactory::new_charArray(length, CHECK); |
| } else if (strcmp(field_signature, "[S") == 0) { |
| value = oopFactory::new_shortArray(length, CHECK); |
| } else if (strcmp(field_signature, "[F") == 0) { |
| value = oopFactory::new_floatArray(length, CHECK); |
| } else if (strcmp(field_signature, "[D") == 0) { |
| value = oopFactory::new_doubleArray(length, CHECK); |
| } else if (strcmp(field_signature, "[I") == 0) { |
| value = oopFactory::new_intArray(length, CHECK); |
| } else if (strcmp(field_signature, "[J") == 0) { |
| value = oopFactory::new_longArray(length, CHECK); |
| } else if (field_signature[0] == JVM_SIGNATURE_ARRAY && |
| field_signature[1] == JVM_SIGNATURE_CLASS) { |
| parse_klass(CHECK); // eat up the array class name |
| Klass* kelem = resolve_klass(field_signature + 1, CHECK); |
| value = oopFactory::new_objArray(kelem, length, CHECK); |
| } else { |
| report_error("unhandled array staticfield"); |
| } |
| } |
| java_mirror->obj_field_put(fd.offset(), value); |
| } else { |
| const char* string_value = parse_escaped_string(); |
| if (strcmp(field_signature, "I") == 0) { |
| int value = atoi(string_value); |
| java_mirror->int_field_put(fd.offset(), value); |
| } else if (strcmp(field_signature, "B") == 0) { |
| int value = atoi(string_value); |
| java_mirror->byte_field_put(fd.offset(), value); |
| } else if (strcmp(field_signature, "C") == 0) { |
| int value = atoi(string_value); |
| java_mirror->char_field_put(fd.offset(), value); |
| } else if (strcmp(field_signature, "S") == 0) { |
| int value = atoi(string_value); |
| java_mirror->short_field_put(fd.offset(), value); |
| } else if (strcmp(field_signature, "Z") == 0) { |
| int value = atoi(string_value); |
| java_mirror->bool_field_put(fd.offset(), value); |
| } else if (strcmp(field_signature, "J") == 0) { |
| jlong value; |
| if (sscanf(string_value, JLONG_FORMAT, &value) != 1) { |
| fprintf(stderr, "Error parsing long: %s\n", string_value); |
| return; |
| } |
| java_mirror->long_field_put(fd.offset(), value); |
| } else if (strcmp(field_signature, "F") == 0) { |
| float value = atof(string_value); |
| java_mirror->float_field_put(fd.offset(), value); |
| } else if (strcmp(field_signature, "D") == 0) { |
| double value = atof(string_value); |
| java_mirror->double_field_put(fd.offset(), value); |
| } else if (strcmp(field_signature, "Ljava/lang/String;") == 0) { |
| Handle value = java_lang_String::create_from_str(string_value, CHECK); |
| java_mirror->obj_field_put(fd.offset(), value()); |
| } else if (field_signature[0] == JVM_SIGNATURE_CLASS) { |
| Klass* k = resolve_klass(string_value, CHECK); |
| oop value = InstanceKlass::cast(k)->allocate_instance(CHECK); |
| java_mirror->obj_field_put(fd.offset(), value); |
| } else { |
| report_error("unhandled staticfield"); |
| } |
| } |
| } |
| |
| #if INCLUDE_JVMTI |
| // JvmtiExport <field> <value> |
| void process_JvmtiExport(TRAPS) { |
| const char* field = parse_string(); |
| bool value = parse_int("JvmtiExport flag") != 0; |
| if (strcmp(field, "can_access_local_variables") == 0) { |
| JvmtiExport::set_can_access_local_variables(value); |
| } else if (strcmp(field, "can_hotswap_or_post_breakpoint") == 0) { |
| JvmtiExport::set_can_hotswap_or_post_breakpoint(value); |
| } else if (strcmp(field, "can_post_on_exceptions") == 0) { |
| JvmtiExport::set_can_post_on_exceptions(value); |
| } else { |
| report_error("Unrecognized JvmtiExport directive"); |
| } |
| } |
| #endif // INCLUDE_JVMTI |
| |
| // Create and initialize a record for a ciMethod |
| ciMethodRecord* new_ciMethod(Method* method) { |
| ciMethodRecord* rec = NEW_RESOURCE_OBJ(ciMethodRecord); |
| rec->_klass_name = method->method_holder()->name()->as_utf8(); |
| rec->_method_name = method->name()->as_utf8(); |
| rec->_signature = method->signature()->as_utf8(); |
| _ci_method_records.append(rec); |
| return rec; |
| } |
| |
| // Lookup data for a ciMethod |
| ciMethodRecord* find_ciMethodRecord(Method* method) { |
| const char* klass_name = method->method_holder()->name()->as_utf8(); |
| const char* method_name = method->name()->as_utf8(); |
| const char* signature = method->signature()->as_utf8(); |
| for (int i = 0; i < _ci_method_records.length(); i++) { |
| ciMethodRecord* rec = _ci_method_records.at(i); |
| if (strcmp(rec->_klass_name, klass_name) == 0 && |
| strcmp(rec->_method_name, method_name) == 0 && |
| strcmp(rec->_signature, signature) == 0) { |
| return rec; |
| } |
| } |
| return nullptr; |
| } |
| |
| // Create and initialize a record for a ciInstanceKlass which was present at replay dump time. |
| void new_ciInstanceKlass(const InstanceKlass* klass) { |
| ciInstanceKlassRecord* rec = NEW_RESOURCE_OBJ(ciInstanceKlassRecord); |
| rec->_klass = klass; |
| oop java_mirror = klass->java_mirror(); |
| Handle h_java_mirror(_thread, java_mirror); |
| rec->_java_mirror = JNIHandles::make_global(h_java_mirror); |
| _ci_instance_klass_records.append(rec); |
| } |
| |
| // Check if a ciInstanceKlass was present at replay dump time for a klass. |
| ciInstanceKlassRecord* find_ciInstanceKlass(const InstanceKlass* klass) { |
| for (int i = 0; i < _ci_instance_klass_records.length(); i++) { |
| ciInstanceKlassRecord* rec = _ci_instance_klass_records.at(i); |
| if (klass == rec->_klass) { |
| // ciInstanceKlass for this klass was resolved. |
| return rec; |
| } |
| } |
| return nullptr; |
| } |
| |
| // Create and initialize a record for a ciMethodData |
| ciMethodDataRecord* new_ciMethodData(Method* method) { |
| ciMethodDataRecord* rec = NEW_RESOURCE_OBJ(ciMethodDataRecord); |
| rec->_klass_name = method->method_holder()->name()->as_utf8(); |
| rec->_method_name = method->name()->as_utf8(); |
| rec->_signature = method->signature()->as_utf8(); |
| _ci_method_data_records.append(rec); |
| return rec; |
| } |
| |
| // Lookup data for a ciMethodData |
| ciMethodDataRecord* find_ciMethodDataRecord(Method* method) { |
| const char* klass_name = method->method_holder()->name()->as_utf8(); |
| const char* method_name = method->name()->as_utf8(); |
| const char* signature = method->signature()->as_utf8(); |
| for (int i = 0; i < _ci_method_data_records.length(); i++) { |
| ciMethodDataRecord* rec = _ci_method_data_records.at(i); |
| if (strcmp(rec->_klass_name, klass_name) == 0 && |
| strcmp(rec->_method_name, method_name) == 0 && |
| strcmp(rec->_signature, signature) == 0) { |
| return rec; |
| } |
| } |
| return nullptr; |
| } |
| |
| // Create and initialize a record for a ciInlineRecord |
| ciInlineRecord* new_ciInlineRecord(Method* method, int bci, int depth, int inline_late) { |
| ciInlineRecord* rec = NEW_RESOURCE_OBJ(ciInlineRecord); |
| rec->_klass_name = method->method_holder()->name()->as_utf8(); |
| rec->_method_name = method->name()->as_utf8(); |
| rec->_signature = method->signature()->as_utf8(); |
| rec->_inline_bci = bci; |
| rec->_inline_depth = depth; |
| rec->_inline_late = inline_late; |
| _ci_inline_records->append(rec); |
| return rec; |
| } |
| |
| // Lookup inlining data for a ciMethod |
| ciInlineRecord* find_ciInlineRecord(Method* method, int bci, int depth) { |
| if (_ci_inline_records != nullptr) { |
| return find_ciInlineRecord(_ci_inline_records, method, bci, depth); |
| } |
| return nullptr; |
| } |
| |
| static ciInlineRecord* find_ciInlineRecord(GrowableArray<ciInlineRecord*>* records, |
| Method* method, int bci, int depth) { |
| if (records != nullptr) { |
| const char* klass_name = method->method_holder()->name()->as_utf8(); |
| const char* method_name = method->name()->as_utf8(); |
| const char* signature = method->signature()->as_utf8(); |
| for (int i = 0; i < records->length(); i++) { |
| ciInlineRecord* rec = records->at(i); |
| if ((rec->_inline_bci == bci) && |
| (rec->_inline_depth == depth) && |
| (strcmp(rec->_klass_name, klass_name) == 0) && |
| (strcmp(rec->_method_name, method_name) == 0) && |
| (strcmp(rec->_signature, signature) == 0)) { |
| return rec; |
| } |
| } |
| } |
| return nullptr; |
| } |
| |
| const char* error_message() { |
| return _error_message; |
| } |
| |
| void reset() { |
| _error_message = nullptr; |
| _ci_method_records.clear(); |
| _ci_method_data_records.clear(); |
| } |
| |
| // Take an ascii string contain \u#### escapes and convert it to utf8 |
| // in place. |
| static void unescape_string(char* value) { |
| char* from = value; |
| char* to = value; |
| while (*from != '\0') { |
| if (*from != '\\') { |
| *from++ = *to++; |
| } else { |
| switch (from[1]) { |
| case 'u': { |
| from += 2; |
| jchar value=0; |
| for (int i=0; i<4; i++) { |
| char c = *from++; |
| switch (c) { |
| case '0': case '1': case '2': case '3': case '4': |
| case '5': case '6': case '7': case '8': case '9': |
| value = (value << 4) + c - '0'; |
| break; |
| case 'a': case 'b': case 'c': |
| case 'd': case 'e': case 'f': |
| value = (value << 4) + 10 + c - 'a'; |
| break; |
| case 'A': case 'B': case 'C': |
| case 'D': case 'E': case 'F': |
| value = (value << 4) + 10 + c - 'A'; |
| break; |
| default: |
| ShouldNotReachHere(); |
| } |
| } |
| UNICODE::convert_to_utf8(&value, 1, to); |
| to++; |
| break; |
| } |
| case 't': *to++ = '\t'; from += 2; break; |
| case 'n': *to++ = '\n'; from += 2; break; |
| case 'r': *to++ = '\r'; from += 2; break; |
| case 'f': *to++ = '\f'; from += 2; break; |
| default: |
| ShouldNotReachHere(); |
| } |
| } |
| } |
| *from = *to; |
| } |
| }; |
| |
| void ciReplay::replay(TRAPS) { |
| int exit_code = replay_impl(THREAD); |
| |
| Threads::destroy_vm(); |
| |
| vm_exit(exit_code); |
| } |
| |
| bool ciReplay::no_replay_state() { |
| return replay_state == nullptr; |
| } |
| |
| void* ciReplay::load_inline_data(ciMethod* method, int entry_bci, int comp_level) { |
| if (FLAG_IS_DEFAULT(InlineDataFile)) { |
| tty->print_cr("ERROR: no inline replay data file specified (use -XX:InlineDataFile=inline_pid12345.txt)."); |
| return nullptr; |
| } |
| |
| VM_ENTRY_MARK; |
| // Load and parse the replay data |
| CompileReplay rp(InlineDataFile, THREAD); |
| if (!rp.can_replay()) { |
| tty->print_cr("ciReplay: !rp.can_replay()"); |
| return nullptr; |
| } |
| void* data = rp.process_inline(method, method->get_Method(), entry_bci, comp_level, THREAD); |
| if (HAS_PENDING_EXCEPTION) { |
| Handle throwable(THREAD, PENDING_EXCEPTION); |
| CLEAR_PENDING_EXCEPTION; |
| java_lang_Throwable::print_stack_trace(throwable, tty); |
| tty->cr(); |
| return nullptr; |
| } |
| |
| if (rp.had_error()) { |
| tty->print_cr("ciReplay: Failed on %s", rp.error_message()); |
| return nullptr; |
| } |
| return data; |
| } |
| |
| int ciReplay::replay_impl(TRAPS) { |
| HandleMark hm(THREAD); |
| ResourceMark rm(THREAD); |
| |
| if (ReplaySuppressInitializers > 2) { |
| // ReplaySuppressInitializers > 2 means that we want to allow |
| // normal VM bootstrap but once we get into the replay itself |
| // don't allow any initializers to be run. |
| ReplaySuppressInitializers = 1; |
| } |
| |
| if (FLAG_IS_DEFAULT(ReplayDataFile)) { |
| tty->print_cr("ERROR: no compiler replay data file specified (use -XX:ReplayDataFile=replay_pid12345.txt)."); |
| return 1; |
| } |
| |
| // Load and parse the replay data |
| CompileReplay rp(ReplayDataFile, THREAD); |
| int exit_code = 0; |
| if (rp.can_replay()) { |
| rp.process(THREAD); |
| } else { |
| exit_code = 1; |
| return exit_code; |
| } |
| |
| if (HAS_PENDING_EXCEPTION) { |
| Handle throwable(THREAD, PENDING_EXCEPTION); |
| CLEAR_PENDING_EXCEPTION; |
| java_lang_Throwable::print_stack_trace(throwable, tty); |
| tty->cr(); |
| exit_code = 2; |
| } |
| |
| if (rp.had_error()) { |
| tty->print_cr("Failed on %s", rp.error_message()); |
| exit_code = 1; |
| } |
| return exit_code; |
| } |
| |
| void ciReplay::initialize(ciMethodData* m) { |
| if (no_replay_state()) { |
| return; |
| } |
| |
| ASSERT_IN_VM; |
| ResourceMark rm; |
| |
| Method* method = m->get_MethodData()->method(); |
| ciMethodDataRecord* rec = replay_state->find_ciMethodDataRecord(method); |
| if (rec == nullptr) { |
| // This indicates some mismatch with the original environment and |
| // the replay environment though it's not always enough to |
| // interfere with reproducing a bug |
| tty->print_cr("Warning: requesting ciMethodData record for method with no data: "); |
| method->print_name(tty); |
| tty->cr(); |
| } else { |
| m->_state = rec->_state; |
| m->_invocation_counter = rec->_invocation_counter; |
| if (rec->_data_length != 0) { |
| assert(m->_data_size + m->_extra_data_size == rec->_data_length * (int)sizeof(rec->_data[0]) || |
| m->_data_size == rec->_data_length * (int)sizeof(rec->_data[0]), "must agree"); |
| |
| // Write the correct ciObjects back into the profile data |
| ciEnv* env = ciEnv::current(); |
| for (int i = 0; i < rec->_classes_length; i++) { |
| Klass *k = rec->_classes[i]; |
| // In case this class pointer is is tagged, preserve the tag bits |
| intptr_t status = 0; |
| if (k != nullptr) { |
| status = ciTypeEntries::with_status(env->get_metadata(k)->as_klass(), rec->_data[rec->_classes_offsets[i]]); |
| } |
| rec->_data[rec->_classes_offsets[i]] = status; |
| } |
| for (int i = 0; i < rec->_methods_length; i++) { |
| Method *m = rec->_methods[i]; |
| *(ciMetadata**)(rec->_data + rec->_methods_offsets[i]) = |
| env->get_metadata(m); |
| } |
| // Copy the updated profile data into place as intptr_ts |
| #ifdef _LP64 |
| Copy::conjoint_jlongs_atomic((jlong *)rec->_data, (jlong *)m->_data, rec->_data_length); |
| #else |
| Copy::conjoint_jints_atomic((jint *)rec->_data, (jint *)m->_data, rec->_data_length); |
| #endif |
| } |
| |
| // copy in the original header |
| Copy::conjoint_jbytes(rec->_orig_data, (char*)&m->_orig, rec->_orig_data_length); |
| } |
| } |
| |
| |
| bool ciReplay::should_not_inline(ciMethod* method) { |
| if (no_replay_state()) { |
| return false; |
| } |
| VM_ENTRY_MARK; |
| // ciMethod without a record shouldn't be inlined. |
| return replay_state->find_ciMethodRecord(method->get_Method()) == nullptr; |
| } |
| |
| bool ciReplay::should_inline(void* data, ciMethod* method, int bci, int inline_depth, bool& should_delay) { |
| if (data != nullptr) { |
| GrowableArray<ciInlineRecord*>* records = (GrowableArray<ciInlineRecord*>*)data; |
| VM_ENTRY_MARK; |
| // Inline record are ordered by bci and depth. |
| ciInlineRecord* record = CompileReplay::find_ciInlineRecord(records, method->get_Method(), bci, inline_depth); |
| if (record == nullptr) { |
| return false; |
| } |
| should_delay = record->_inline_late; |
| return true; |
| } else if (replay_state != nullptr) { |
| VM_ENTRY_MARK; |
| // Inline record are ordered by bci and depth. |
| ciInlineRecord* record = replay_state->find_ciInlineRecord(method->get_Method(), bci, inline_depth); |
| if (record == nullptr) { |
| return false; |
| } |
| should_delay = record->_inline_late; |
| return true; |
| } |
| return false; |
| } |
| |
| bool ciReplay::should_not_inline(void* data, ciMethod* method, int bci, int inline_depth) { |
| if (data != nullptr) { |
| GrowableArray<ciInlineRecord*>* records = (GrowableArray<ciInlineRecord*>*)data; |
| VM_ENTRY_MARK; |
| // Inline record are ordered by bci and depth. |
| return CompileReplay::find_ciInlineRecord(records, method->get_Method(), bci, inline_depth) == nullptr; |
| } else if (replay_state != nullptr) { |
| VM_ENTRY_MARK; |
| // Inline record are ordered by bci and depth. |
| return replay_state->find_ciInlineRecord(method->get_Method(), bci, inline_depth) == nullptr; |
| } |
| return false; |
| } |
| |
| void ciReplay::initialize(ciMethod* m) { |
| if (no_replay_state()) { |
| return; |
| } |
| |
| ASSERT_IN_VM; |
| ResourceMark rm; |
| |
| Method* method = m->get_Method(); |
| ciMethodRecord* rec = replay_state->find_ciMethodRecord(method); |
| if (rec == nullptr) { |
| // This indicates some mismatch with the original environment and |
| // the replay environment though it's not always enough to |
| // interfere with reproducing a bug |
| tty->print_cr("Warning: requesting ciMethod record for method with no data: "); |
| method->print_name(tty); |
| tty->cr(); |
| } else { |
| EXCEPTION_CONTEXT; |
| // m->_instructions_size = rec->_instructions_size; |
| m->_inline_instructions_size = -1; |
| m->_interpreter_invocation_count = rec->_interpreter_invocation_count; |
| m->_interpreter_throwout_count = rec->_interpreter_throwout_count; |
| MethodCounters* mcs = method->get_method_counters(CHECK_AND_CLEAR); |
| guarantee(mcs != nullptr, "method counters allocation failed"); |
| mcs->invocation_counter()->_counter = rec->_invocation_counter; |
| mcs->backedge_counter()->_counter = rec->_backedge_counter; |
| } |
| } |
| |
| void ciReplay::initialize(ciInstanceKlass* ci_ik, InstanceKlass* ik) { |
| assert(!no_replay_state(), "must have replay state"); |
| |
| ASSERT_IN_VM; |
| ciInstanceKlassRecord* rec = replay_state->find_ciInstanceKlass(ik); |
| assert(rec != nullptr, "ciInstanceKlass must be whitelisted"); |
| ci_ik->_java_mirror = CURRENT_ENV->get_instance(JNIHandles::resolve(rec->_java_mirror)); |
| } |
| |
| bool ciReplay::is_loaded(Method* method) { |
| if (no_replay_state()) { |
| return true; |
| } |
| |
| ASSERT_IN_VM; |
| ResourceMark rm; |
| |
| ciMethodRecord* rec = replay_state->find_ciMethodRecord(method); |
| return rec != nullptr; |
| } |
| |
| bool ciReplay::is_klass_unresolved(const InstanceKlass* klass) { |
| if (no_replay_state()) { |
| return false; |
| } |
| |
| // Check if klass is found on whitelist. |
| ciInstanceKlassRecord* rec = replay_state->find_ciInstanceKlass(klass); |
| return rec == nullptr; |
| } |
| |
| oop ciReplay::obj_field(oop obj, Symbol* name) { |
| InstanceKlass* ik = InstanceKlass::cast(obj->klass()); |
| |
| do { |
| if (!ik->has_nonstatic_fields()) { |
| ik = ik->java_super(); |
| continue; |
| } |
| |
| for (JavaFieldStream fs(ik); !fs.done(); fs.next()) { |
| if (fs.access_flags().is_static()) { |
| continue; |
| } |
| if (fs.name() == name) { |
| int offset = fs.offset(); |
| #ifdef ASSERT |
| fieldDescriptor fd = fs.field_descriptor(); |
| assert(fd.offset() == ik->field_offset(fd.index()), "!"); |
| #endif |
| oop f = obj->obj_field(offset); |
| return f; |
| } |
| } |
| |
| ik = ik->java_super(); |
| } while (ik != nullptr); |
| return nullptr; |
| } |
| |
| oop ciReplay::obj_field(oop obj, const char *name) { |
| Symbol* fname = SymbolTable::probe(name, (int)strlen(name)); |
| if (fname == nullptr) { |
| return nullptr; |
| } |
| return obj_field(obj, fname); |
| } |
