| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #ifndef RUNTIME_VM_FLAG_LIST_H_ |
| #define RUNTIME_VM_FLAG_LIST_H_ |
| |
| // Don't use USING_DBC outside of this file. |
| #if defined(TARGET_ARCH_DBC) |
| #define USING_DBC true |
| #else |
| #define USING_DBC false |
| #endif |
| |
| // Don't use USING_MULTICORE outside of this file. |
| #if defined(ARCH_IS_MULTI_CORE) |
| #define USING_MULTICORE true |
| #else |
| #define USING_MULTICORE false |
| #endif |
| |
| // Don't use USING_PRODUCT outside of this file. |
| #if defined(PRODUCT) |
| #define USING_PRODUCT true |
| #else |
| #define USING_PRODUCT false |
| #endif |
| |
| #if defined(DART_PRECOMPILED_RUNTIME) |
| constexpr bool kDartPrecompiledRuntime = true; |
| #else |
| constexpr bool kDartPrecompiledRuntime = false; |
| #endif |
| |
| // List of all flags in the VM. |
| // Flags can be one of three categories: |
| // * P roduct flags: Can be set in any of the deployment modes, including in |
| // production. |
| // * R elease flags: Generally available flags except when building product. |
| // * D ebug flags: Can only be set in debug VMs, which also have C++ assertions |
| // enabled. |
| // * pre C ompile flags: Generally available flags except when building product |
| // or precompiled runtime. |
| // |
| // Usage: |
| // P(name, type, default_value, comment) |
| // R(name, product_value, type, default_value, comment) |
| // D(name, type, default_value, comment) |
| // C(name, precompiled_value, product_value, type, default_value, comment) |
| #define FLAG_LIST(P, R, D, C) \ |
| P(experimental_unsafe_mode_use_at_your_own_risk, bool, false, \ |
| "Omit runtime strong mode type checks and disable optimizations based on " \ |
| "types.") \ |
| P(abort_on_oom, bool, false, \ |
| "Abort if memory allocation fails - use only with --old-gen-heap-size") \ |
| C(async_debugger, false, false, bool, true, \ |
| "Debugger support async functions.") \ |
| P(background_compilation, bool, USING_MULTICORE, \ |
| "Run optimizing compilation in background") \ |
| R(background_compilation_stop_alot, false, bool, false, \ |
| "Stress test system: stop background compiler often.") \ |
| P(causal_async_stacks, bool, !USING_PRODUCT, "Improved async stacks") \ |
| P(collect_code, bool, true, "Attempt to GC infrequently used code.") \ |
| P(collect_dynamic_function_names, bool, true, \ |
| "Collects all dynamic function names to identify unique targets") \ |
| P(compactor_tasks, int, 2, \ |
| "The number of tasks to use for parallel compaction.") \ |
| P(compilation_counter_threshold, int, 10, \ |
| "Function's usage-counter value before interpreted function is compiled, " \ |
| "-1 means never") \ |
| P(concurrent_sweep, bool, USING_MULTICORE, \ |
| "Concurrent sweep for old generation.") \ |
| R(dedup_instructions, true, bool, false, \ |
| "Canonicalize instructions when precompiling.") \ |
| C(deoptimize_alot, false, false, bool, false, \ |
| "Deoptimizes we are about to return to Dart code from native entries.") \ |
| C(deoptimize_every, 0, 0, int, 0, \ |
| "Deoptimize on every N stack overflow checks") \ |
| R(disable_alloc_stubs_after_gc, false, bool, false, "Stress testing flag.") \ |
| R(disassemble, false, bool, false, "Disassemble dart code.") \ |
| R(disassemble_optimized, false, bool, false, "Disassemble optimized code.") \ |
| R(dump_megamorphic_stats, false, bool, false, \ |
| "Dump megamorphic cache statistics") \ |
| R(dump_symbol_stats, false, bool, false, "Dump symbol table statistics") \ |
| P(dwarf_stack_traces, bool, false, \ |
| "Emit DWARF line number and inlining info" \ |
| "in dylib snapshots and don't symbolize stack traces.") \ |
| R(enable_asserts, false, bool, false, "Enable assert statements.") \ |
| P(enable_kernel_expression_compilation, bool, true, \ |
| "Compile expressions with the Kernel front-end.") \ |
| P(enable_mirrors, bool, true, \ |
| "Disable to make importing dart:mirrors an error.") \ |
| R(enable_type_checks, false, bool, false, "Enable type checks.") \ |
| R(error_on_bad_override, false, bool, false, \ |
| "Report error for bad overrides. Ignored in strong mode.") \ |
| R(error_on_bad_type, false, bool, false, \ |
| "Report error for malformed types.") \ |
| P(fields_may_be_reset, bool, false, \ |
| "Don't optimize away static field initialization") \ |
| C(force_clone_compiler_objects, false, false, bool, false, \ |
| "Force cloning of objects needed in compiler (ICData and Field).") \ |
| R(gc_at_alloc, false, bool, false, "GC at every allocation.") \ |
| P(getter_setter_ratio, int, 13, \ |
| "Ratio of getter/setter usage used for double field unboxing heuristics") \ |
| P(guess_icdata_cid, bool, true, \ |
| "Artificially create type feedback for arithmetic etc. operations") \ |
| P(huge_method_cutoff_in_tokens, int, 20000, \ |
| "Huge method cutoff in tokens: Disables optimizations for huge methods.") \ |
| P(idle_timeout_micros, int, 1000 * kMicrosecondsPerMillisecond, \ |
| "Consider thread pool isolates for idle tasks after this long.") \ |
| P(idle_duration_micros, int, 500 * kMicrosecondsPerMillisecond, \ |
| "Allow idle tasks to run for this long.") \ |
| P(interpret_irregexp, bool, USING_DBC, "Use irregexp bytecode interpreter") \ |
| P(lazy_dispatchers, bool, true, "Generate dispatchers lazily") \ |
| P(link_natives_lazily, bool, false, "Link native calls lazily") \ |
| C(load_deferred_eagerly, true, true, bool, false, \ |
| "Load deferred libraries eagerly.") \ |
| R(log_marker_tasks, false, bool, false, \ |
| "Log debugging information for old gen GC marking tasks.") \ |
| P(marker_tasks, int, USING_MULTICORE ? 2 : 0, \ |
| "The number of tasks to spawn during old gen GC marking (0 means " \ |
| "perform all marking on main thread).") \ |
| P(max_polymorphic_checks, int, 4, \ |
| "Maximum number of polymorphic check, otherwise it is megamorphic.") \ |
| P(max_equality_polymorphic_checks, int, 32, \ |
| "Maximum number of polymorphic checks in equality operator,") \ |
| P(new_gen_semi_max_size, int, (kWordSize <= 4) ? 8 : 16, \ |
| "Max size of new gen semi space in MB") \ |
| P(new_gen_semi_initial_size, int, (kWordSize <= 4) ? 1 : 2, \ |
| "Initial size of new gen semi space in MB") \ |
| P(optimization_counter_threshold, int, 30000, \ |
| "Function's usage-counter value before it is optimized, -1 means never") \ |
| P(old_gen_heap_size, int, kDefaultMaxOldGenHeapSize, \ |
| "Max size of old gen heap size in MB, or 0 for unlimited," \ |
| "e.g: --old_gen_heap_size=1024 allows up to 1024MB old gen heap") \ |
| R(pause_isolates_on_start, false, bool, false, \ |
| "Pause isolates before starting.") \ |
| R(pause_isolates_on_exit, false, bool, false, "Pause isolates exiting.") \ |
| R(pause_isolates_on_unhandled_exceptions, false, bool, false, \ |
| "Pause isolates on unhandled exceptions.") \ |
| P(polymorphic_with_deopt, bool, true, \ |
| "Polymorphic calls with deoptimization / megamorphic call") \ |
| P(precompiled_mode, bool, false, "Precompilation compiler mode") \ |
| P(print_snapshot_sizes, bool, false, "Print sizes of generated snapshots.") \ |
| P(print_snapshot_sizes_verbose, bool, false, \ |
| "Print cluster sizes of generated snapshots.") \ |
| P(print_benchmarking_metrics, bool, false, \ |
| "Print additional memory and latency metrics for benchmarking.") \ |
| R(print_ssa_liveranges, false, bool, false, \ |
| "Print live ranges after allocation.") \ |
| R(print_stacktrace_at_api_error, false, bool, false, \ |
| "Attempt to print a native stack trace when an API error is created.") \ |
| C(print_stop_message, false, false, bool, false, "Print stop message.") \ |
| D(print_variable_descriptors, bool, false, \ |
| "Print variable descriptors in disassembly.") \ |
| R(profiler, false, bool, false, "Enable the profiler.") \ |
| R(profiler_native_memory, false, bool, false, \ |
| "Enable native memory statistic collection.") \ |
| P(reify_generic_functions, bool, true, \ |
| "Enable reification of generic functions (not yet supported).") \ |
| P(reorder_basic_blocks, bool, true, "Reorder basic blocks") \ |
| C(stress_async_stacks, false, false, bool, false, \ |
| "Stress test async stack traces") \ |
| P(strong, bool, true, "Enable strong mode.") \ |
| P(sync_async, bool, true, "Start `async` functions synchronously.") \ |
| R(support_disassembler, false, bool, true, "Support the disassembler.") \ |
| R(support_il_printer, false, bool, true, "Support the IL printer.") \ |
| C(support_reload, false, false, bool, true, "Support isolate reload.") \ |
| R(support_service, false, bool, true, "Support the service protocol.") \ |
| R(support_timeline, false, bool, true, "Support timeline.") \ |
| D(trace_cha, bool, false, "Trace CHA operations") \ |
| R(trace_field_guards, false, bool, false, "Trace changes in field's cids.") \ |
| C(trace_irregexp, false, false, bool, false, "Trace irregexps.") \ |
| D(trace_isolates, bool, false, "Trace isolate creation and shut down.") \ |
| D(trace_handles, bool, false, "Traces allocation of handles.") \ |
| D(trace_kernel_binary, bool, false, "Trace Kernel reader/writer.") \ |
| D(trace_optimization, bool, false, "Print optimization details.") \ |
| R(trace_profiler, false, bool, false, "Profiler trace") \ |
| D(trace_profiler_verbose, bool, false, "Verbose profiler trace") \ |
| D(trace_ssa_allocator, bool, false, "Trace register allocation over SSA.") \ |
| P(trace_strong_mode_types, bool, false, \ |
| "Trace optimizations based on strong mode types.") \ |
| D(trace_zones, bool, false, "Traces allocation sizes in the zone.") \ |
| P(truncating_left_shift, bool, true, \ |
| "Optimize left shift to truncate if possible") \ |
| C(use_bytecode_compiler, false, false, bool, false, "Compile from bytecode") \ |
| P(use_compactor, bool, false, "Compact the heap during old-space GC.") \ |
| P(use_cha_deopt, bool, true, \ |
| "Use class hierarchy analysis even if it can cause deoptimization.") \ |
| P(use_field_guards, bool, !USING_DBC, \ |
| "Use field guards and track field types") \ |
| C(use_osr, false, true, bool, true, "Use OSR") \ |
| P(use_strong_mode_types, bool, true, "Optimize based on strong mode types.") \ |
| R(verbose_gc, false, bool, false, "Enables verbose GC.") \ |
| R(verbose_gc_hdr, 40, int, 40, "Print verbose GC header interval.") \ |
| R(verify_after_gc, false, bool, false, \ |
| "Enables heap verification after GC.") \ |
| R(verify_before_gc, false, bool, false, \ |
| "Enables heap verification before GC.") \ |
| D(verify_gc_contains, bool, false, \ |
| "Enables verification of address contains during GC.") \ |
| D(verify_on_transition, bool, false, "Verify on dart <==> VM.") \ |
| P(enable_slow_path_sharing, bool, true, "Enable sharing of slow-path code.") \ |
| P(shared_slow_path_triggers_gc, bool, false, \ |
| "TESTING: slow-path triggers a GC.") \ |
| P(enable_multiple_entrypoints, bool, true, \ |
| "Enable multiple entrypoints per-function and related optimizations.") \ |
| P(enable_testing_pragmas, bool, false, \ |
| "Enable magical pragmas for testing purposes. Use at your own risk!") \ |
| R(eliminate_type_checks, true, bool, true, \ |
| "Eliminate type checks when allowed by static type analysis.") \ |
| P(enable_interpreter, bool, false, "Enable interpreting kernel bytecode.") \ |
| D(support_rr, bool, false, "Support running within RR.") |
| |
| #endif // RUNTIME_VM_FLAG_LIST_H_ |
