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// Copyright 2011 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// This file defines all of the flags. It is separated into different section,
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// for Debug, Release, Logging and Profiling, etc. To add a new flag, find the
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// correct section, and use one of the DEFINE_ macros, without a trailing ';'.
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//
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// This include does not have a guard, because it is a template-style include,
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// which can be included multiple times in different modes. It expects to have
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// a mode defined before it's included. The modes are FLAG_MODE_... below:
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// We want to declare the names of the variables for the header file. Normally
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// this will just be an extern declaration, but for a readonly flag we let the
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// compiler make better optimizations by giving it the value.
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#if defined(FLAG_MODE_DECLARE)
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#define FLAG_FULL(ftype, ctype, nam, def, cmt) \
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extern ctype FLAG_##nam;
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#define FLAG_READONLY(ftype, ctype, nam, def, cmt) \
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static ctype const FLAG_##nam = def;
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#define DEFINE_implication(whenflag, thenflag)
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// We want to supply the actual storage and value for the flag variable in the
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// .cc file. We only do this for writable flags.
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#elif defined(FLAG_MODE_DEFINE)
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#define FLAG_FULL(ftype, ctype, nam, def, cmt) \
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ctype FLAG_##nam = def;
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#define FLAG_READONLY(ftype, ctype, nam, def, cmt)
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#define DEFINE_implication(whenflag, thenflag)
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// We need to define all of our default values so that the Flag structure can
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// access them by pointer. These are just used internally inside of one .cc,
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// for MODE_META, so there is no impact on the flags interface.
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#elif defined(FLAG_MODE_DEFINE_DEFAULTS)
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#define FLAG_FULL(ftype, ctype, nam, def, cmt) \
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static ctype const FLAGDEFAULT_##nam = def;
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#define FLAG_READONLY(ftype, ctype, nam, def, cmt)
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#define DEFINE_implication(whenflag, thenflag)
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// We want to write entries into our meta data table, for internal parsing and
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// printing / etc in the flag parser code. We only do this for writable flags.
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#elif defined(FLAG_MODE_META)
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#define FLAG_FULL(ftype, ctype, nam, def, cmt) \
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{ Flag::TYPE_##ftype, #nam, &FLAG_##nam, &FLAGDEFAULT_##nam, cmt, false },
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#define FLAG_READONLY(ftype, ctype, nam, def, cmt)
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#define DEFINE_implication(whenflag, thenflag)
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// We produce the code to set flags when it is implied by another flag.
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#elif defined(FLAG_MODE_DEFINE_IMPLICATIONS)
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#define FLAG_FULL(ftype, ctype, nam, def, cmt)
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#define FLAG_READONLY(ftype, ctype, nam, def, cmt)
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#define DEFINE_implication(whenflag, thenflag) \
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if (FLAG_##whenflag) FLAG_##thenflag = true;
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#else
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#error No mode supplied when including flags.defs
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#endif
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#ifdef FLAG_MODE_DECLARE
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// Structure used to hold a collection of arguments to the JavaScript code.
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struct JSArguments {
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public:
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JSArguments();
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JSArguments(int argc, const char** argv);
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int argc() const;
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const char** argv();
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const char*& operator[](int idx);
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JSArguments& operator=(JSArguments args);
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private:
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int argc_;
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const char** argv_;
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};
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#endif
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#define DEFINE_bool(nam, def, cmt) FLAG(BOOL, bool, nam, def, cmt)
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#define DEFINE_int(nam, def, cmt) FLAG(INT, int, nam, def, cmt)
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#define DEFINE_float(nam, def, cmt) FLAG(FLOAT, double, nam, def, cmt)
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#define DEFINE_string(nam, def, cmt) FLAG(STRING, const char*, nam, def, cmt)
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#define DEFINE_args(nam, def, cmt) FLAG(ARGS, JSArguments, nam, def, cmt)
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//
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// Flags in all modes.
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//
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#define FLAG FLAG_FULL
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// Flags for experimental language features.
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DEFINE_bool(harmony_typeof, false, "enable harmony semantics for typeof")
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DEFINE_bool(harmony_scoping, false, "enable harmony block scoping")
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DEFINE_bool(harmony_proxies, false, "enable harmony proxies")
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DEFINE_bool(harmony_collections, false,
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"enable harmony collections (sets, maps, and weak maps)")
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DEFINE_bool(harmony, false, "enable all harmony features")
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DEFINE_implication(harmony, harmony_typeof)
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DEFINE_implication(harmony, harmony_scoping)
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DEFINE_implication(harmony, harmony_proxies)
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DEFINE_implication(harmony, harmony_collections)
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// Flags for experimental implementation features.
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DEFINE_bool(unbox_double_arrays, true, "automatically unbox arrays of doubles")
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DEFINE_bool(smi_only_arrays, false, "tracks arrays with only smi values")
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DEFINE_bool(string_slices, true, "use string slices")
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DEFINE_bool(clever_optimizations,
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true,
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"Optimize object size, Array shift, DOM strings and string +")
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// Flags for Crankshaft.
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DEFINE_bool(crankshaft, true, "use crankshaft")
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DEFINE_string(hydrogen_filter, "", "hydrogen use/trace filter")
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DEFINE_bool(use_hydrogen, true, "use generated hydrogen for compilation")
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DEFINE_bool(build_lithium, true, "use lithium chunk builder")
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DEFINE_bool(alloc_lithium, true, "use lithium register allocator")
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DEFINE_bool(use_lithium, true, "use lithium code generator")
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DEFINE_bool(use_range, true, "use hydrogen range analysis")
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DEFINE_bool(eliminate_dead_phis, true, "eliminate dead phis")
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DEFINE_bool(use_gvn, true, "use hydrogen global value numbering")
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DEFINE_bool(use_canonicalizing, true, "use hydrogen instruction canonicalizing")
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DEFINE_bool(use_inlining, true, "use function inlining")
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DEFINE_bool(limit_inlining, true, "limit code size growth from inlining")
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DEFINE_bool(eliminate_empty_blocks, true, "eliminate empty blocks")
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DEFINE_bool(loop_invariant_code_motion, true, "loop invariant code motion")
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DEFINE_bool(collect_megamorphic_maps_from_stub_cache,
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true,
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"crankshaft harvests type feedback from stub cache")
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DEFINE_bool(hydrogen_stats, false, "print statistics for hydrogen")
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DEFINE_bool(trace_hydrogen, false, "trace generated hydrogen to file")
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DEFINE_bool(trace_inlining, false, "trace inlining decisions")
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DEFINE_bool(trace_alloc, false, "trace register allocator")
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DEFINE_bool(trace_all_uses, false, "trace all use positions")
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DEFINE_bool(trace_range, false, "trace range analysis")
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DEFINE_bool(trace_gvn, false, "trace global value numbering")
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DEFINE_bool(trace_representation, false, "trace representation types")
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DEFINE_bool(stress_pointer_maps, false, "pointer map for every instruction")
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DEFINE_bool(stress_environments, false, "environment for every instruction")
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DEFINE_int(deopt_every_n_times,
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0,
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"deoptimize every n times a deopt point is passed")
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DEFINE_bool(trap_on_deopt, false, "put a break point before deoptimizing")
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DEFINE_bool(deoptimize_uncommon_cases, true, "deoptimize uncommon cases")
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DEFINE_bool(polymorphic_inlining, true, "polymorphic inlining")
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DEFINE_bool(use_osr, true, "use on-stack replacement")
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DEFINE_bool(trace_osr, false, "trace on-stack replacement")
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DEFINE_int(stress_runs, 0, "number of stress runs")
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DEFINE_bool(optimize_closures, true, "optimize closures")
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// assembler-ia32.cc / assembler-arm.cc / assembler-x64.cc
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DEFINE_bool(debug_code, false,
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"generate extra code (assertions) for debugging")
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DEFINE_bool(code_comments, false, "emit comments in code disassembly")
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DEFINE_bool(peephole_optimization, true,
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"perform peephole optimizations in assembly code")
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DEFINE_bool(enable_sse2, true,
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"enable use of SSE2 instructions if available")
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DEFINE_bool(enable_sse3, true,
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"enable use of SSE3 instructions if available")
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DEFINE_bool(enable_sse4_1, true,
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"enable use of SSE4.1 instructions if available")
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DEFINE_bool(enable_cmov, true,
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"enable use of CMOV instruction if available")
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DEFINE_bool(enable_rdtsc, true,
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"enable use of RDTSC instruction if available")
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DEFINE_bool(enable_sahf, true,
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"enable use of SAHF instruction if available (X64 only)")
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DEFINE_bool(enable_vfp3, true,
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"enable use of VFP3 instructions if available - this implies "
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"enabling ARMv7 instructions (ARM only)")
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DEFINE_bool(enable_armv7, true,
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"enable use of ARMv7 instructions if available (ARM only)")
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DEFINE_bool(enable_fpu, true,
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"enable use of MIPS FPU instructions if available (MIPS only)")
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// bootstrapper.cc
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DEFINE_string(expose_natives_as, NULL, "expose natives in global object")
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DEFINE_string(expose_debug_as, NULL, "expose debug in global object")
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DEFINE_bool(expose_gc, false, "expose gc extension")
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DEFINE_bool(expose_externalize_string, false,
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"expose externalize string extension")
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DEFINE_int(stack_trace_limit, 10, "number of stack frames to capture")
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DEFINE_bool(builtins_in_stack_traces, false,
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"show built-in functions in stack traces")
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DEFINE_bool(disable_native_files, false, "disable builtin natives files")
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// builtins-ia32.cc
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DEFINE_bool(inline_new, true, "use fast inline allocation")
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// checks.cc
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DEFINE_bool(stack_trace_on_abort, true,
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"print a stack trace if an assertion failure occurs")
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// codegen-ia32.cc / codegen-arm.cc
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DEFINE_bool(trace, false, "trace function calls")
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DEFINE_bool(mask_constants_with_cookie,
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true,
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"use random jit cookie to mask large constants")
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// codegen.cc
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DEFINE_bool(lazy, true, "use lazy compilation")
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DEFINE_bool(trace_opt, false, "trace lazy optimization")
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DEFINE_bool(trace_opt_stats, false, "trace lazy optimization statistics")
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DEFINE_bool(opt, true, "use adaptive optimizations")
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DEFINE_bool(opt_eagerly, false, "be more eager when adaptively optimizing")
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DEFINE_bool(always_opt, false, "always try to optimize functions")
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DEFINE_bool(prepare_always_opt, false, "prepare for turning on always opt")
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DEFINE_bool(deopt, true, "support deoptimization")
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DEFINE_bool(trace_deopt, false, "trace deoptimization")
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// compiler.cc
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DEFINE_int(min_preparse_length, 1024,
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"minimum length for automatic enable preparsing")
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DEFINE_bool(always_full_compiler, false,
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"try to use the dedicated run-once backend for all code")
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DEFINE_bool(trace_bailout, false,
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"print reasons for falling back to using the classic V8 backend")
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// compilation-cache.cc
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DEFINE_bool(compilation_cache, true, "enable compilation cache")
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DEFINE_bool(cache_prototype_transitions, true, "cache prototype transitions")
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// debug.cc
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DEFINE_bool(trace_debug_json, false, "trace debugging JSON request/response")
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DEFINE_bool(debugger_auto_break, true,
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"automatically set the debug break flag when debugger commands are "
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"in the queue")
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DEFINE_bool(enable_liveedit, true, "enable liveedit experimental feature")
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// execution.cc
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DEFINE_int(stack_size, kPointerSize * 128,
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"default size of stack region v8 is allowed to use (in KkBytes)")
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// frames.cc
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DEFINE_int(max_stack_trace_source_length, 300,
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"maximum length of function source code printed in a stack trace.")
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// full-codegen.cc
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DEFINE_bool(always_inline_smi_code, false,
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"always inline smi code in non-opt code")
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// heap.cc
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DEFINE_int(max_new_space_size, 0, "max size of the new generation (in kBytes)")
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DEFINE_int(max_old_space_size, 0, "max size of the old generation (in Mbytes)")
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DEFINE_int(max_executable_size, 0, "max size of executable memory (in Mbytes)")
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DEFINE_bool(gc_global, false, "always perform global GCs")
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DEFINE_int(gc_interval, -1, "garbage collect after <n> allocations")
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DEFINE_bool(trace_gc, false,
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"print one trace line following each garbage collection")
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DEFINE_bool(trace_gc_nvp, false,
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"print one detailed trace line in name=value format "
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"after each garbage collection")
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DEFINE_bool(print_cumulative_gc_stat, false,
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"print cumulative GC statistics in name=value format on exit")
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DEFINE_bool(trace_gc_verbose, false,
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"print more details following each garbage collection")
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DEFINE_bool(trace_fragmentation, false,
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"report fragmentation for old pointer and data pages")
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DEFINE_bool(collect_maps, true,
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"garbage collect maps from which no objects can be reached")
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DEFINE_bool(flush_code, true,
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"flush code that we expect not to use again before full gc")
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DEFINE_bool(incremental_marking, true, "use incremental marking")
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DEFINE_bool(incremental_marking_steps, true, "do incremental marking steps")
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DEFINE_bool(trace_incremental_marking, false,
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"trace progress of the incremental marking")
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// v8.cc
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DEFINE_bool(use_idle_notification, true,
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"Use idle notification to reduce memory footprint.")
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// ic.cc
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DEFINE_bool(use_ic, true, "use inline caching")
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#ifdef LIVE_OBJECT_LIST
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// liveobjectlist.cc
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DEFINE_string(lol_workdir, NULL, "path for lol temp files")
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DEFINE_bool(verify_lol, false, "perform debugging verification for lol")
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#endif
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// macro-assembler-ia32.cc
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DEFINE_bool(native_code_counters, false,
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"generate extra code for manipulating stats counters")
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// mark-compact.cc
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DEFINE_bool(always_compact, false, "Perform compaction on every full GC")
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DEFINE_bool(lazy_sweeping, true,
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"Use lazy sweeping for old pointer and data spaces")
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DEFINE_bool(cleanup_caches_in_maps_at_gc, true,
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"Flush code caches in maps during mark compact cycle.")
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DEFINE_bool(never_compact, false,
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"Never perform compaction on full GC - testing only")
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DEFINE_bool(compact_code_space, false, "Compact code space")
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DEFINE_bool(cleanup_code_caches_at_gc, true,
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"Flush inline caches prior to mark compact collection and "
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"flush code caches in maps during mark compact cycle.")
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|
|
DEFINE_int(random_seed, 0,
|
|
|
|
"Default seed for initializing random generator "
|
|
|
|
"(0, the default, means to use system random).")
|
|
|
|
|
|
|
|
DEFINE_bool(canonicalize_object_literal_maps, true,
|
|
|
|
"Canonicalize maps for object literals.")
|
|
|
|
|
|
|
|
DEFINE_int(max_map_space_pages, MapSpace::kMaxMapPageIndex - 1,
|
|
|
|
"Maximum number of pages in map space which still allows to encode "
|
|
|
|
"forwarding pointers. That's actually a constant, but it's useful "
|
|
|
|
"to control it with a flag for better testing.")
|
|
|
|
|
|
|
|
// mksnapshot.cc
|
|
|
|
DEFINE_bool(h, false, "print this message")
|
|
|
|
DEFINE_bool(new_snapshot, true, "use new snapshot implementation")
|
|
|
|
|
|
|
|
// objects.cc
|
|
|
|
DEFINE_bool(use_verbose_printer, true, "allows verbose printing")
|
|
|
|
|
|
|
|
// parser.cc
|
|
|
|
DEFINE_bool(allow_natives_syntax, false, "allow natives syntax")
|
|
|
|
|
|
|
|
// simulator-arm.cc and simulator-mips.cc
|
|
|
|
DEFINE_bool(trace_sim, false, "Trace simulator execution")
|
|
|
|
DEFINE_bool(check_icache, false,
|
|
|
|
"Check icache flushes in ARM and MIPS simulator")
|
|
|
|
DEFINE_int(stop_sim_at, 0, "Simulator stop after x number of instructions")
|
|
|
|
DEFINE_int(sim_stack_alignment, 8,
|
|
|
|
"Stack alingment in bytes in simulator (4 or 8, 8 is default)")
|
|
|
|
|
|
|
|
// isolate.cc
|
|
|
|
DEFINE_bool(trace_exception, false,
|
|
|
|
"print stack trace when throwing exceptions")
|
|
|
|
DEFINE_bool(preallocate_message_memory, false,
|
|
|
|
"preallocate some memory to build stack traces.")
|
|
|
|
DEFINE_bool(randomize_hashes,
|
|
|
|
true,
|
|
|
|
"randomize hashes to avoid predictable hash collisions "
|
|
|
|
"(with snapshots this option cannot override the baked-in seed)")
|
|
|
|
DEFINE_int(hash_seed,
|
|
|
|
0,
|
|
|
|
"Fixed seed to use to hash property keys (0 means random)"
|
|
|
|
"(with snapshots this option cannot override the baked-in seed)")
|
|
|
|
|
|
|
|
// v8.cc
|
|
|
|
DEFINE_bool(preemption, false,
|
|
|
|
"activate a 100ms timer that switches between V8 threads")
|
|
|
|
|
|
|
|
// Regexp
|
|
|
|
DEFINE_bool(regexp_optimization, true, "generate optimized regexp code")
|
|
|
|
|
|
|
|
// Testing flags test/cctest/test-{flags,api,serialization}.cc
|
|
|
|
DEFINE_bool(testing_bool_flag, true, "testing_bool_flag")
|
|
|
|
DEFINE_int(testing_int_flag, 13, "testing_int_flag")
|
|
|
|
DEFINE_float(testing_float_flag, 2.5, "float-flag")
|
|
|
|
DEFINE_string(testing_string_flag, "Hello, world!", "string-flag")
|
|
|
|
DEFINE_int(testing_prng_seed, 42, "Seed used for threading test randomness")
|
|
|
|
#ifdef WIN32
|
|
|
|
DEFINE_string(testing_serialization_file, "C:\\Windows\\Temp\\serdes",
|
|
|
|
"file in which to testing_serialize heap")
|
|
|
|
#else
|
|
|
|
DEFINE_string(testing_serialization_file, "/tmp/serdes",
|
|
|
|
"file in which to serialize heap")
|
|
|
|
#endif
|
|
|
|
|
|
|
|
//
|
|
|
|
// Dev shell flags
|
|
|
|
//
|
|
|
|
|
|
|
|
DEFINE_bool(help, false, "Print usage message, including flags, on console")
|
|
|
|
DEFINE_bool(dump_counters, false, "Dump counters on exit")
|
|
|
|
|
|
|
|
#ifdef ENABLE_DEBUGGER_SUPPORT
|
|
|
|
DEFINE_bool(debugger, false, "Enable JavaScript debugger")
|
|
|
|
DEFINE_bool(remote_debugger, false, "Connect JavaScript debugger to the "
|
|
|
|
"debugger agent in another process")
|
|
|
|
DEFINE_bool(debugger_agent, false, "Enable debugger agent")
|
|
|
|
DEFINE_int(debugger_port, 5858, "Port to use for remote debugging")
|
|
|
|
#endif // ENABLE_DEBUGGER_SUPPORT
|
|
|
|
|
|
|
|
DEFINE_string(map_counters, "", "Map counters to a file")
|
|
|
|
DEFINE_args(js_arguments, JSArguments(),
|
|
|
|
"Pass all remaining arguments to the script. Alias for \"--\".")
|
|
|
|
|
|
|
|
#if defined(WEBOS__)
|
|
|
|
DEFINE_bool(debug_compile_events, false, "Enable debugger compile events")
|
|
|
|
DEFINE_bool(debug_script_collected_events, false,
|
|
|
|
"Enable debugger script collected events")
|
|
|
|
#else
|
|
|
|
DEFINE_bool(debug_compile_events, true, "Enable debugger compile events")
|
|
|
|
DEFINE_bool(debug_script_collected_events, true,
|
|
|
|
"Enable debugger script collected events")
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
|
|
// GDB JIT integration flags.
|
|
|
|
//
|
|
|
|
|
|
|
|
DEFINE_bool(gdbjit, false, "enable GDBJIT interface (disables compacting GC)")
|
|
|
|
DEFINE_bool(gdbjit_full, false, "enable GDBJIT interface for all code objects")
|
|
|
|
DEFINE_bool(gdbjit_dump, false, "dump elf objects with debug info to disk")
|
|
|
|
DEFINE_string(gdbjit_dump_filter, "",
|
|
|
|
"dump only objects containing this substring")
|
|
|
|
|
|
|
|
// mark-compact.cc
|
|
|
|
DEFINE_bool(force_marking_deque_overflows, false,
|
|
|
|
"force overflows of marking deque by reducing it's size "
|
|
|
|
"to 64 words")
|
|
|
|
|
|
|
|
DEFINE_bool(stress_compaction, false,
|
|
|
|
"stress the GC compactor to flush out bugs (implies "
|
|
|
|
"--force_marking_deque_overflows)")
|
|
|
|
|
|
|
|
//
|
|
|
|
// Debug only flags
|
|
|
|
//
|
|
|
|
#undef FLAG
|
|
|
|
#ifdef DEBUG
|
|
|
|
#define FLAG FLAG_FULL
|
|
|
|
#else
|
|
|
|
#define FLAG FLAG_READONLY
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// checks.cc
|
|
|
|
DEFINE_bool(enable_slow_asserts, false,
|
|
|
|
"enable asserts that are slow to execute")
|
|
|
|
|
|
|
|
// codegen-ia32.cc / codegen-arm.cc
|
|
|
|
DEFINE_bool(trace_codegen, false,
|
|
|
|
"print name of functions for which code is generated")
|
|
|
|
DEFINE_bool(print_source, false, "pretty print source code")
|
|
|
|
DEFINE_bool(print_builtin_source, false,
|
|
|
|
"pretty print source code for builtins")
|
|
|
|
DEFINE_bool(print_ast, false, "print source AST")
|
|
|
|
DEFINE_bool(print_builtin_ast, false, "print source AST for builtins")
|
|
|
|
DEFINE_bool(print_json_ast, false, "print source AST as JSON")
|
|
|
|
DEFINE_bool(print_builtin_json_ast, false,
|
|
|
|
"print source AST for builtins as JSON")
|
|
|
|
DEFINE_string(stop_at, "", "function name where to insert a breakpoint")
|
|
|
|
|
|
|
|
// compiler.cc
|
|
|
|
DEFINE_bool(print_builtin_scopes, false, "print scopes for builtins")
|
|
|
|
DEFINE_bool(print_scopes, false, "print scopes")
|
|
|
|
|
|
|
|
// contexts.cc
|
|
|
|
DEFINE_bool(trace_contexts, false, "trace contexts operations")
|
|
|
|
|
|
|
|
// heap.cc
|
|
|
|
DEFINE_bool(gc_greedy, false, "perform GC prior to some allocations")
|
|
|
|
DEFINE_bool(gc_verbose, false, "print stuff during garbage collection")
|
|
|
|
DEFINE_bool(heap_stats, false, "report heap statistics before and after GC")
|
|
|
|
DEFINE_bool(code_stats, false, "report code statistics after GC")
|
|
|
|
DEFINE_bool(verify_heap, false, "verify heap pointers before and after GC")
|
|
|
|
DEFINE_bool(print_handles, false, "report handles after GC")
|
|
|
|
DEFINE_bool(print_global_handles, false, "report global handles after GC")
|
|
|
|
|
|
|
|
// ic.cc
|
|
|
|
DEFINE_bool(trace_ic, false, "trace inline cache state transitions")
|
|
|
|
|
|
|
|
// objects.cc
|
|
|
|
DEFINE_bool(trace_normalization,
|
|
|
|
false,
|
|
|
|
"prints when objects are turned into dictionaries.")
|
|
|
|
|
|
|
|
// runtime.cc
|
|
|
|
DEFINE_bool(trace_lazy, false, "trace lazy compilation")
|
|
|
|
|
|
|
|
// serialize.cc
|
|
|
|
DEFINE_bool(debug_serialization, false,
|
|
|
|
"write debug information into the snapshot.")
|
|
|
|
|
|
|
|
// spaces.cc
|
|
|
|
DEFINE_bool(collect_heap_spill_statistics, false,
|
|
|
|
"report heap spill statistics along with heap_stats "
|
|
|
|
"(requires heap_stats)")
|
|
|
|
|
|
|
|
DEFINE_bool(trace_isolates, false, "trace isolate state changes")
|
|
|
|
|
|
|
|
// VM state
|
|
|
|
DEFINE_bool(log_state_changes, false, "Log state changes.")
|
|
|
|
|
|
|
|
// Regexp
|
|
|
|
DEFINE_bool(regexp_possessive_quantifier,
|
|
|
|
false,
|
|
|
|
"enable possessive quantifier syntax for testing")
|
|
|
|
DEFINE_bool(trace_regexp_bytecodes, false, "trace regexp bytecode execution")
|
|
|
|
DEFINE_bool(trace_regexp_assembler,
|
|
|
|
false,
|
|
|
|
"trace regexp macro assembler calls.")
|
|
|
|
|
|
|
|
//
|
|
|
|
// Logging and profiling flags
|
|
|
|
//
|
|
|
|
#undef FLAG
|
|
|
|
#define FLAG FLAG_FULL
|
|
|
|
|
|
|
|
// log.cc
|
|
|
|
DEFINE_bool(log, false,
|
|
|
|
"Minimal logging (no API, code, GC, suspect, or handles samples).")
|
|
|
|
DEFINE_bool(log_all, false, "Log all events to the log file.")
|
|
|
|
DEFINE_bool(log_runtime, false, "Activate runtime system %Log call.")
|
|
|
|
DEFINE_bool(log_api, false, "Log API events to the log file.")
|
|
|
|
DEFINE_bool(log_code, false,
|
|
|
|
"Log code events to the log file without profiling.")
|
|
|
|
DEFINE_bool(log_gc, false,
|
|
|
|
"Log heap samples on garbage collection for the hp2ps tool.")
|
|
|
|
DEFINE_bool(log_handles, false, "Log global handle events.")
|
|
|
|
DEFINE_bool(log_snapshot_positions, false,
|
|
|
|
"log positions of (de)serialized objects in the snapshot.")
|
|
|
|
DEFINE_bool(log_suspect, false, "Log suspect operations.")
|
|
|
|
DEFINE_bool(prof, false,
|
|
|
|
"Log statistical profiling information (implies --log-code).")
|
|
|
|
DEFINE_bool(prof_auto, true,
|
|
|
|
"Used with --prof, starts profiling automatically")
|
|
|
|
DEFINE_bool(prof_lazy, false,
|
|
|
|
"Used with --prof, only does sampling and logging"
|
|
|
|
" when profiler is active (implies --noprof_auto).")
|
|
|
|
DEFINE_bool(prof_browser_mode, true,
|
|
|
|
"Used with --prof, turns on browser-compatible mode for profiling.")
|
|
|
|
DEFINE_bool(log_regexp, false, "Log regular expression execution.")
|
|
|
|
DEFINE_bool(sliding_state_window, false,
|
|
|
|
"Update sliding state window counters.")
|
|
|
|
DEFINE_string(logfile, "v8.log", "Specify the name of the log file.")
|
|
|
|
DEFINE_bool(ll_prof, false, "Enable low-level linux profiler.")
|
|
|
|
|
|
|
|
//
|
|
|
|
// Disassembler only flags
|
|
|
|
//
|
|
|
|
#undef FLAG
|
|
|
|
#ifdef ENABLE_DISASSEMBLER
|
|
|
|
#define FLAG FLAG_FULL
|
|
|
|
#else
|
|
|
|
#define FLAG FLAG_READONLY
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// elements.cc
|
|
|
|
DEFINE_bool(trace_elements_transitions, false, "trace elements transitions")
|
|
|
|
|
|
|
|
// code-stubs.cc
|
|
|
|
DEFINE_bool(print_code_stubs, false, "print code stubs")
|
|
|
|
|
|
|
|
// codegen-ia32.cc / codegen-arm.cc
|
|
|
|
DEFINE_bool(print_code, false, "print generated code")
|
|
|
|
DEFINE_bool(print_opt_code, false, "print optimized code")
|
|
|
|
DEFINE_bool(print_unopt_code, false, "print unoptimized code before "
|
|
|
|
"printing optimized code based on it")
|
|
|
|
DEFINE_bool(print_code_verbose, false, "print more information for code")
|
|
|
|
DEFINE_bool(print_builtin_code, false, "print generated code for builtins")
|
|
|
|
|
|
|
|
#ifdef ENABLE_DISASSEMBLER
|
|
|
|
DEFINE_bool(print_all_code, false, "enable all flags related to printing code")
|
|
|
|
DEFINE_implication(print_all_code, print_code)
|
|
|
|
DEFINE_implication(print_all_code, print_opt_code)
|
|
|
|
DEFINE_implication(print_all_code, print_unopt_code)
|
|
|
|
DEFINE_implication(print_all_code, print_code_verbose)
|
|
|
|
DEFINE_implication(print_all_code, print_builtin_code)
|
|
|
|
DEFINE_implication(print_all_code, print_code_stubs)
|
|
|
|
DEFINE_implication(print_all_code, code_comments)
|
|
|
|
#ifdef DEBUG
|
|
|
|
DEFINE_implication(print_all_code, trace_codegen)
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// Cleanup...
|
|
|
|
#undef FLAG_FULL
|
|
|
|
#undef FLAG_READONLY
|
|
|
|
#undef FLAG
|
|
|
|
|
|
|
|
#undef DEFINE_bool
|
|
|
|
#undef DEFINE_int
|
|
|
|
#undef DEFINE_string
|
|
|
|
#undef DEFINE_implication
|
|
|
|
|
|
|
|
#undef FLAG_MODE_DECLARE
|
|
|
|
#undef FLAG_MODE_DEFINE
|
|
|
|
#undef FLAG_MODE_DEFINE_DEFAULTS
|
|
|
|
#undef FLAG_MODE_META
|
|
|
|
#undef FLAG_MODE_DEFINE_IMPLICATIONS
|