.IP NODE_DISABLE_COLORS
If set to 1 then colors will not be used in the REPL.
-.IP NODE_USE_UV
-If set to 1 then Node will use the new libuv-based backend.
-
.SH V8 OPTIONS
- --crankshaft (use crankshaft)
+ --harmony_typeof (enable harmony semantics for typeof)
+ type: bool default: false
+ --harmony_proxies (enable harmony proxies)
+ type: bool default: false
+ --harmony_weakmaps (enable harmony weak maps)
+ type: bool default: false
+ --harmony_block_scoping (enable harmony block scoping)
type: bool default: false
+ --unbox_double_arrays (automatically unbox arrays of doubles)
+ type: bool default: true
+ --string_slices (use string slices)
+ type: bool default: false
+ --crankshaft (use crankshaft)
+ type: bool default: true
--hydrogen_filter (hydrogen use/trace filter)
- type: string default:
+ type: string default:
--use_hydrogen (use generated hydrogen for compilation)
type: bool default: true
--build_lithium (use lithium chunk builder)
type: bool default: true
--use_gvn (use hydrogen global value numbering)
type: bool default: true
- --use_peeling (use loop peeling)
- type: bool default: false
--use_canonicalizing (use hydrogen instruction canonicalizing)
type: bool default: true
--use_inlining (use function inlining)
type: bool default: true
--loop_invariant_code_motion (loop invariant code motion)
type: bool default: true
- --time_hydrogen (timing for hydrogen)
+ --hydrogen_stats (print statistics for hydrogen)
type: bool default: false
--trace_hydrogen (trace generated hydrogen to file)
type: bool default: false
type: bool default: false
--trace_alloc (trace register allocator)
type: bool default: false
+ --trace_all_uses (trace all use positions)
+ type: bool default: false
--trace_range (trace range analysis)
type: bool default: false
--trace_gvn (trace global value numbering)
type: bool default: false
--deopt_every_n_times (deoptimize every n times a deopt point is passed)
type: int default: 0
- --process_arguments_object (try to deal with arguments object)
- type: bool default: true
--trap_on_deopt (put a break point before deoptimizing)
type: bool default: false
--deoptimize_uncommon_cases (deoptimize uncommon cases)
type: bool default: true
--polymorphic_inlining (polymorphic inlining)
type: bool default: true
- --aggressive_loop_invariant_motion (aggressive motion of instructions out of loops)
- type: bool default: true
--use_osr (use on-stack replacement)
type: bool default: true
--trace_osr (trace on-stack replacement)
type: bool default: false
--code_comments (emit comments in code disassembly)
type: bool default: false
- --emit_branch_hints (emit branch hints)
- type: bool default: false
--peephole_optimization (perform peephole optimizations in assembly code)
type: bool default: true
- --print_peephole_optimization (print peephole optimizations in assembly code)
- type: bool default: false
--enable_sse2 (enable use of SSE2 instructions if available)
type: bool default: true
--enable_sse3 (enable use of SSE3 instructions if available)
type: bool default: true
--enable_sahf (enable use of SAHF instruction if available (X64 only))
type: bool default: true
- --enable_vfp3 (enable use of VFP3 instructions if available (ARM only))
+ --enable_vfp3 (enable use of VFP3 instructions if available - this implies enabling ARMv7 instructions (ARM only))
type: bool default: true
--enable_armv7 (enable use of ARMv7 instructions if available (ARM only))
type: bool default: true
+ --enable_fpu (enable use of MIPS FPU instructions if available (MIPS only))
+ type: bool default: true
--expose_natives_as (expose natives in global object)
type: string default: NULL
--expose_debug_as (expose debug in global object)
type: bool default: true
--trace (trace function calls)
type: bool default: false
- --defer_negation (defer negation operation)
- type: bool default: true
--mask_constants_with_cookie (use random jit cookie to mask large constants)
type: bool default: true
--lazy (use lazy compilation)
type: bool default: false
--prepare_always_opt (prepare for turning on always opt)
type: bool default: false
- --debug_info (add debug information to compiled functions)
- type: bool default: true
--deopt (support deoptimization)
type: bool default: true
--trace_deopt (trace deoptimization)
type: bool default: false
- --strict (strict error checking)
- type: bool default: false
--min_preparse_length (minimum length for automatic enable preparsing)
type: int default: 1024
- --full_compiler (enable dedicated backend for run-once code)
- type: bool default: true
--always_full_compiler (try to use the dedicated run-once backend for all code)
type: bool default: false
--trace_bailout (print reasons for falling back to using the classic V8 backend)
type: bool default: false
- --safe_int32_compiler (enable optimized side-effect-free int32 expressions.)
- type: bool default: true
- --use_flow_graph (perform flow-graph based optimizations)
- type: bool default: false
--compilation_cache (enable compilation cache)
type: bool default: true
- --loop_peeling (Peel off the first iteration of loops.)
- type: bool default: false
- --remote_debugging (enable remote debugging)
- type: bool default: false
+ --cache_prototype_transitions (cache prototype transitions)
+ type: bool default: true
--trace_debug_json (trace debugging JSON request/response)
type: bool default: false
--debugger_auto_break (automatically set the debug break flag when debugger commands are in the queue)
type: bool default: false
--never_compact (Never perform compaction on full GC - testing only)
type: bool default: false
- --cleanup_ics_at_gc (Flush inline caches prior to mark compact collection.)
- type: bool default: true
- --cleanup_caches_in_maps_at_gc (Flush code caches in maps during mark compact cycle.)
+ --cleanup_code_caches_at_gc (Flush inline caches prior to mark compact collection and flush code caches in maps during mark compact cycle.)
type: bool default: true
--random_seed (Default seed for initializing random generator (0, the default, means to use system random).)
type: int default: 0
type: bool default: false
--strict_mode (allow strict mode directives)
type: bool default: true
- --optimize_ast (optimize the ast)
- type: bool default: true
--trace_sim (Trace simulator execution)
type: bool default: false
--check_icache (Check icache flushes in ARM simulator)
type: bool default: false
--preallocate_message_memory (preallocate some memory to build stack traces.)
type: bool default: false
+ --randomize_hashes (randomize hashes to avoid predictable hash collisions (with snapshots this option cannot override the baked-in seed))
+ type: bool default: true
+ --hash_seed (Fixed seed to use to hash property keys (0 means random)(with snapshots this option cannot override the baked-in seed))
+ type: int default: 0
--preemption (activate a 100ms timer that switches between V8 threads)
type: bool default: false
- --trace_regexps (trace regexp execution)
- type: bool default: false
--regexp_optimization (generate optimized regexp code)
type: bool default: true
--regexp_entry_native (use native code to enter regexp)
--debugger_port (Port to use for remote debugging)
type: int default: 5858
--map_counters (Map counters to a file)
- type: string default: NULL
+ type: string default:
--js_arguments (Pass all remaining arguments to the script. Alias for "--".)
- type: arguments default:
+ type: arguments default:
--debug_compile_events (Enable debugger compile events)
type: bool default: true
--debug_script_collected_events (Enable debugger script collected events)
type: bool default: false
--gdbjit_dump (dump elf objects with debug info to disk)
type: bool default: false
+ --gdbjit_dump_filter (dump only objects containing this substring)
+ type: string default:
+ --enable_slow_asserts (enable asserts that are slow to execute)
+ type: bool default: false
+ --trace_codegen (print name of functions for which code is generated)
+ type: bool default: false
+ --print_source (pretty print source code)
+ type: bool default: false
+ --print_builtin_source (pretty print source code for builtins)
+ type: bool default: false
+ --print_ast (print source AST)
+ type: bool default: false
+ --print_builtin_ast (print source AST for builtins)
+ type: bool default: false
+ --print_json_ast (print source AST as JSON)
+ type: bool default: false
+ --print_builtin_json_ast (print source AST for builtins as JSON)
+ type: bool default: false
+ --stop_at (function name where to insert a breakpoint)
+ type: string default:
+ --verify_stack_height (verify stack height tracing on ia32)
+ type: bool default: false
+ --print_builtin_scopes (print scopes for builtins)
+ type: bool default: false
+ --print_scopes (print scopes)
+ type: bool default: false
+ --trace_contexts (trace contexts operations)
+ type: bool default: false
+ --gc_greedy (perform GC prior to some allocations)
+ type: bool default: false
+ --gc_verbose (print stuff during garbage collection)
+ type: bool default: false
+ --heap_stats (report heap statistics before and after GC)
+ type: bool default: false
+ --code_stats (report code statistics after GC)
+ type: bool default: false
+ --verify_heap (verify heap pointers before and after GC)
+ type: bool default: false
+ --print_handles (report handles after GC)
+ type: bool default: false
+ --print_global_handles (report global handles after GC)
+ type: bool default: false
+ --trace_ic (trace inline cache state transitions)
+ type: bool default: false
+ --trace_normalization (prints when objects are turned into dictionaries.)
+ type: bool default: false
+ --trace_lazy (trace lazy compilation)
+ type: bool default: false
+ --debug_serialization (write debug information into the snapshot.)
+ type: bool default: false
+ --collect_heap_spill_statistics (report heap spill statistics along with heap_stats (requires heap_stats))
+ type: bool default: false
+ --trace_isolates (trace isolate state changes)
+ type: bool default: false
+ --log_state_changes (Log state changes.)
+ type: bool default: false
+ --regexp_possessive_quantifier (enable possessive quantifier syntax for testing)
+ type: bool default: false
+ --trace_regexp_bytecodes (trace regexp bytecode execution)
+ type: bool default: false
+ --trace_regexp_assembler (trace regexp macro assembler calls.)
+ type: bool default: false
--log (Minimal logging (no API, code, GC, suspect, or handles samples).)
type: bool default: false
--log_all (Log all events to the log file.)
type: bool default: false
--log_suspect (Log suspect operations.)
type: bool default: false
- --log_producers (Log stack traces of JS objects allocations.)
- type: bool default: false
--prof (Log statistical profiling information (implies --log-code).)
type: bool default: false
--prof_auto (Used with --prof, starts profiling automatically)
type: string default: v8.log
--ll_prof (Enable low-level linux profiler.)
type: bool default: false
+ --print_code_stubs (print code stubs)
+ type: bool default: false
+ --print_code (print generated code)
+ type: bool default: false
+ --print_opt_code (print optimized code)
+ type: bool default: false
+ --print_unopt_code (print unoptimized code before printing optimized code based on it)
+ type: bool default: false
+ --print_code_verbose (print more information for code)
+ type: bool default: false
+ --print_builtin_code (print generated code for builtins)
+ type: bool default: false
.SH RESOURCES AND DOCUMENTATION
projects / platform / upstream / nodejs.git / commitdiff