| /* |
| * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_COMPILER_COMPILEBROKER_HPP |
| #define SHARE_VM_COMPILER_COMPILEBROKER_HPP |
| |
| #include "ci/compilerInterface.hpp" |
| #include "compiler/abstractCompiler.hpp" |
| #include "runtime/perfData.hpp" |
| |
| class nmethod; |
| class nmethodLocker; |
| |
| // CompileTask |
| // |
| // An entry in the compile queue. It represents a pending or current |
| // compilation. |
| class CompileTask : public CHeapObj<mtCompiler> { |
| friend class VMStructs; |
| |
| private: |
| static CompileTask* _task_free_list; |
| #ifdef ASSERT |
| static int _num_allocated_tasks; |
| #endif |
| |
| Monitor* _lock; |
| uint _compile_id; |
| Method* _method; |
| jobject _method_holder; |
| int _osr_bci; |
| bool _is_complete; |
| bool _is_success; |
| bool _is_blocking; |
| int _comp_level; |
| int _num_inlined_bytecodes; |
| nmethodLocker* _code_handle; // holder of eventual result |
| CompileTask* _next, *_prev; |
| bool _is_free; |
| // Fields used for logging why the compilation was initiated: |
| jlong _time_queued; // in units of os::elapsed_counter() |
| Method* _hot_method; // which method actually triggered this task |
| jobject _hot_method_holder; |
| int _hot_count; // information about its invocation counter |
| const char* _comment; // more info about the task |
| const char* _failure_reason; |
| |
| public: |
| CompileTask() { |
| _lock = new Monitor(Mutex::nonleaf+2, "CompileTaskLock"); |
| } |
| |
| void initialize(int compile_id, methodHandle method, int osr_bci, int comp_level, |
| methodHandle hot_method, int hot_count, const char* comment, |
| bool is_blocking); |
| |
| static CompileTask* allocate(); |
| static void free(CompileTask* task); |
| |
| int compile_id() const { return _compile_id; } |
| Method* method() const { return _method; } |
| int osr_bci() const { return _osr_bci; } |
| bool is_complete() const { return _is_complete; } |
| bool is_blocking() const { return _is_blocking; } |
| bool is_success() const { return _is_success; } |
| |
| nmethodLocker* code_handle() const { return _code_handle; } |
| void set_code_handle(nmethodLocker* l) { _code_handle = l; } |
| nmethod* code() const; // _code_handle->code() |
| void set_code(nmethod* nm); // _code_handle->set_code(nm) |
| |
| Monitor* lock() const { return _lock; } |
| |
| void mark_complete() { _is_complete = true; } |
| void mark_success() { _is_success = true; } |
| |
| int comp_level() { return _comp_level;} |
| void set_comp_level(int comp_level) { _comp_level = comp_level;} |
| |
| int num_inlined_bytecodes() const { return _num_inlined_bytecodes; } |
| void set_num_inlined_bytecodes(int n) { _num_inlined_bytecodes = n; } |
| |
| CompileTask* next() const { return _next; } |
| void set_next(CompileTask* next) { _next = next; } |
| CompileTask* prev() const { return _prev; } |
| void set_prev(CompileTask* prev) { _prev = prev; } |
| bool is_free() const { return _is_free; } |
| void set_is_free(bool val) { _is_free = val; } |
| |
| private: |
| static void print_compilation_impl(outputStream* st, Method* method, int compile_id, int comp_level, |
| bool is_osr_method = false, int osr_bci = -1, bool is_blocking = false, |
| const char* msg = NULL, bool short_form = false); |
| |
| public: |
| void print_compilation(outputStream* st = tty, const char* msg = NULL, bool short_form = false); |
| static void print_compilation(outputStream* st, const nmethod* nm, const char* msg = NULL, bool short_form = false) { |
| print_compilation_impl(st, nm->method(), nm->compile_id(), nm->comp_level(), |
| nm->is_osr_method(), nm->is_osr_method() ? nm->osr_entry_bci() : -1, /*is_blocking*/ false, |
| msg, short_form); |
| } |
| |
| static void print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg = NULL); |
| static void print_inlining(ciMethod* method, int inline_level, int bci, const char* msg = NULL) { |
| print_inlining(tty, method, inline_level, bci, msg); |
| } |
| |
| // Redefine Classes support |
| void mark_on_stack(); |
| |
| static void print_inline_indent(int inline_level, outputStream* st = tty); |
| |
| void print(); |
| void print_line(); |
| void print_line_on_error(outputStream* st, char* buf, int buflen); |
| |
| void log_task(xmlStream* log); |
| void log_task_queued(); |
| void log_task_start(CompileLog* log); |
| void log_task_done(CompileLog* log); |
| |
| void set_failure_reason(const char* reason) { |
| _failure_reason = reason; |
| } |
| }; |
| |
| // CompilerCounters |
| // |
| // Per Compiler Performance Counters. |
| // |
| class CompilerCounters : public CHeapObj<mtCompiler> { |
| |
| public: |
| enum { |
| cmname_buffer_length = 160 |
| }; |
| |
| private: |
| |
| char _current_method[cmname_buffer_length]; |
| PerfStringVariable* _perf_current_method; |
| |
| int _compile_type; |
| PerfVariable* _perf_compile_type; |
| |
| PerfCounter* _perf_time; |
| PerfCounter* _perf_compiles; |
| |
| public: |
| CompilerCounters(const char* name, int instance, TRAPS); |
| |
| // these methods should be called in a thread safe context |
| |
| void set_current_method(const char* method) { |
| strncpy(_current_method, method, (size_t)cmname_buffer_length); |
| if (UsePerfData) _perf_current_method->set_value(method); |
| } |
| |
| char* current_method() { return _current_method; } |
| |
| void set_compile_type(int compile_type) { |
| _compile_type = compile_type; |
| if (UsePerfData) _perf_compile_type->set_value((jlong)compile_type); |
| } |
| |
| int compile_type() { return _compile_type; } |
| |
| PerfCounter* time_counter() { return _perf_time; } |
| PerfCounter* compile_counter() { return _perf_compiles; } |
| }; |
| |
| // CompileQueue |
| // |
| // A list of CompileTasks. |
| class CompileQueue : public CHeapObj<mtCompiler> { |
| private: |
| const char* _name; |
| Monitor* _lock; |
| |
| CompileTask* _first; |
| CompileTask* _last; |
| |
| CompileTask* _first_stale; |
| |
| int _size; |
| |
| void purge_stale_tasks(); |
| public: |
| CompileQueue(const char* name, Monitor* lock) { |
| _name = name; |
| _lock = lock; |
| _first = NULL; |
| _last = NULL; |
| _size = 0; |
| _first_stale = NULL; |
| } |
| |
| const char* name() const { return _name; } |
| Monitor* lock() const { return _lock; } |
| |
| void add(CompileTask* task); |
| void remove(CompileTask* task); |
| void remove_and_mark_stale(CompileTask* task); |
| CompileTask* first() { return _first; } |
| CompileTask* last() { return _last; } |
| |
| CompileTask* get(); |
| |
| bool is_empty() const { return _first == NULL; } |
| int size() const { return _size; } |
| |
| |
| // Redefine Classes support |
| void mark_on_stack(); |
| void free_all(); |
| NOT_PRODUCT (void print();) |
| |
| ~CompileQueue() { |
| assert (is_empty(), " Compile Queue must be empty"); |
| } |
| }; |
| |
| // CompileTaskWrapper |
| // |
| // Assign this task to the current thread. Deallocate the task |
| // when the compilation is complete. |
| class CompileTaskWrapper : StackObj { |
| public: |
| CompileTaskWrapper(CompileTask* task); |
| ~CompileTaskWrapper(); |
| }; |
| |
| |
| // Compilation |
| // |
| // The broker for all compilation requests. |
| class CompileBroker: AllStatic { |
| friend class Threads; |
| friend class CompileTaskWrapper; |
| |
| public: |
| enum { |
| name_buffer_length = 100 |
| }; |
| |
| // Compile type Information for print_last_compile() and CompilerCounters |
| enum { no_compile, normal_compile, osr_compile, native_compile }; |
| static int assign_compile_id (methodHandle method, int osr_bci); |
| |
| |
| private: |
| static bool _initialized; |
| static volatile bool _should_block; |
| |
| // This flag can be used to stop compilation or turn it back on |
| static volatile jint _should_compile_new_jobs; |
| |
| // The installed compiler(s) |
| static AbstractCompiler* _compilers[2]; |
| |
| // These counters are used for assigning id's to each compilation |
| static volatile jint _compilation_id; |
| static volatile jint _osr_compilation_id; |
| |
| static int _last_compile_type; |
| static int _last_compile_level; |
| static char _last_method_compiled[name_buffer_length]; |
| |
| static CompileQueue* _c2_compile_queue; |
| static CompileQueue* _c1_compile_queue; |
| |
| static GrowableArray<CompilerThread*>* _compiler_threads; |
| |
| // performance counters |
| static PerfCounter* _perf_total_compilation; |
| static PerfCounter* _perf_native_compilation; |
| static PerfCounter* _perf_osr_compilation; |
| static PerfCounter* _perf_standard_compilation; |
| |
| static PerfCounter* _perf_total_bailout_count; |
| static PerfCounter* _perf_total_invalidated_count; |
| static PerfCounter* _perf_total_compile_count; |
| static PerfCounter* _perf_total_native_compile_count; |
| static PerfCounter* _perf_total_osr_compile_count; |
| static PerfCounter* _perf_total_standard_compile_count; |
| |
| static PerfCounter* _perf_sum_osr_bytes_compiled; |
| static PerfCounter* _perf_sum_standard_bytes_compiled; |
| static PerfCounter* _perf_sum_nmethod_size; |
| static PerfCounter* _perf_sum_nmethod_code_size; |
| |
| static PerfStringVariable* _perf_last_method; |
| static PerfStringVariable* _perf_last_failed_method; |
| static PerfStringVariable* _perf_last_invalidated_method; |
| static PerfVariable* _perf_last_compile_type; |
| static PerfVariable* _perf_last_compile_size; |
| static PerfVariable* _perf_last_failed_type; |
| static PerfVariable* _perf_last_invalidated_type; |
| |
| // Timers and counters for generating statistics |
| static elapsedTimer _t_total_compilation; |
| static elapsedTimer _t_osr_compilation; |
| static elapsedTimer _t_standard_compilation; |
| |
| static int _total_compile_count; |
| static int _total_bailout_count; |
| static int _total_invalidated_count; |
| static int _total_native_compile_count; |
| static int _total_osr_compile_count; |
| static int _total_standard_compile_count; |
| static int _sum_osr_bytes_compiled; |
| static int _sum_standard_bytes_compiled; |
| static int _sum_nmethod_size; |
| static int _sum_nmethod_code_size; |
| static long _peak_compilation_time; |
| |
| static volatile jint _print_compilation_warning; |
| |
| static CompilerThread* make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, AbstractCompiler* comp, TRAPS); |
| static void init_compiler_threads(int c1_compiler_count, int c2_compiler_count); |
| static bool compilation_is_complete (methodHandle method, int osr_bci, int comp_level); |
| static bool compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level); |
| static bool is_compile_blocking (); |
| static void preload_classes (methodHandle method, TRAPS); |
| |
| static CompileTask* create_compile_task(CompileQueue* queue, |
| int compile_id, |
| methodHandle method, |
| int osr_bci, |
| int comp_level, |
| methodHandle hot_method, |
| int hot_count, |
| const char* comment, |
| bool blocking); |
| static void wait_for_completion(CompileTask* task); |
| |
| static void invoke_compiler_on_method(CompileTask* task); |
| static void set_last_compile(CompilerThread *thread, methodHandle method, bool is_osr, int comp_level); |
| static void push_jni_handle_block(); |
| static void pop_jni_handle_block(); |
| static bool check_break_at(methodHandle method, int compile_id, bool is_osr); |
| static void collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task); |
| |
| static void compile_method_base(methodHandle method, |
| int osr_bci, |
| int comp_level, |
| methodHandle hot_method, |
| int hot_count, |
| const char* comment, |
| Thread* thread); |
| static CompileQueue* compile_queue(int comp_level) { |
| if (is_c2_compile(comp_level)) return _c2_compile_queue; |
| if (is_c1_compile(comp_level)) return _c1_compile_queue; |
| return NULL; |
| } |
| static bool init_compiler_runtime(); |
| static void shutdown_compiler_runtime(AbstractCompiler* comp, CompilerThread* thread); |
| |
| public: |
| enum { |
| // The entry bci used for non-OSR compilations. |
| standard_entry_bci = InvocationEntryBci |
| }; |
| |
| static AbstractCompiler* compiler(int comp_level) { |
| if (is_c2_compile(comp_level)) return _compilers[1]; // C2 |
| if (is_c1_compile(comp_level)) return _compilers[0]; // C1 |
| return NULL; |
| } |
| |
| static bool compilation_is_in_queue(methodHandle method); |
| static int queue_size(int comp_level) { |
| CompileQueue *q = compile_queue(comp_level); |
| return q != NULL ? q->size() : 0; |
| } |
| static void compilation_init(); |
| static void init_compiler_thread_log(); |
| static nmethod* compile_method(methodHandle method, |
| int osr_bci, |
| int comp_level, |
| methodHandle hot_method, |
| int hot_count, |
| const char* comment, Thread* thread); |
| |
| static void compiler_thread_loop(); |
| static uint get_compilation_id() { return _compilation_id; } |
| |
| // Set _should_block. |
| // Call this from the VM, with Threads_lock held and a safepoint requested. |
| static void set_should_block(); |
| |
| // Call this from the compiler at convenient points, to poll for _should_block. |
| static void maybe_block(); |
| |
| enum { |
| // Flags for toggling compiler activity |
| stop_compilation = 0, |
| run_compilation = 1, |
| shutdown_compilaton = 2 |
| }; |
| |
| static bool should_compile_new_jobs() { return UseCompiler && (_should_compile_new_jobs == run_compilation); } |
| static bool set_should_compile_new_jobs(jint new_state) { |
| // Return success if the current caller set it |
| jint old = Atomic::cmpxchg(new_state, &_should_compile_new_jobs, 1-new_state); |
| return (old == (1-new_state)); |
| } |
| |
| static void disable_compilation_forever() { |
| UseCompiler = false; |
| AlwaysCompileLoopMethods = false; |
| Atomic::xchg(shutdown_compilaton, &_should_compile_new_jobs); |
| } |
| |
| static bool is_compilation_disabled_forever() { |
| return _should_compile_new_jobs == shutdown_compilaton; |
| } |
| static void handle_full_code_cache(); |
| // Ensures that warning is only printed once. |
| static bool should_print_compiler_warning() { |
| jint old = Atomic::cmpxchg(1, &_print_compilation_warning, 0); |
| return old == 0; |
| } |
| // Return total compilation ticks |
| static jlong total_compilation_ticks() { |
| return _perf_total_compilation != NULL ? _perf_total_compilation->get_value() : 0; |
| } |
| |
| // Redefine Classes support |
| static void mark_on_stack(); |
| |
| // Print a detailed accounting of compilation time |
| static void print_times(); |
| |
| // Debugging output for failure |
| static void print_last_compile(); |
| |
| static void print_compiler_threads_on(outputStream* st); |
| |
| // compiler name for debugging |
| static const char* compiler_name(int comp_level); |
| |
| static int get_total_compile_count() { return _total_compile_count; } |
| static int get_total_bailout_count() { return _total_bailout_count; } |
| static int get_total_invalidated_count() { return _total_invalidated_count; } |
| static int get_total_native_compile_count() { return _total_native_compile_count; } |
| static int get_total_osr_compile_count() { return _total_osr_compile_count; } |
| static int get_total_standard_compile_count() { return _total_standard_compile_count; } |
| static int get_sum_osr_bytes_compiled() { return _sum_osr_bytes_compiled; } |
| static int get_sum_standard_bytes_compiled() { return _sum_standard_bytes_compiled; } |
| static int get_sum_nmethod_size() { return _sum_nmethod_size;} |
| static int get_sum_nmethod_code_size() { return _sum_nmethod_code_size; } |
| static long get_peak_compilation_time() { return _peak_compilation_time; } |
| static long get_total_compilation_time() { return _t_total_compilation.milliseconds(); } |
| }; |
| |
| #endif // SHARE_VM_COMPILER_COMPILEBROKER_HPP |