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Diffstat (limited to 'v8/src/flag-definitions.h')
| -rw-r--r-- | v8/src/flag-definitions.h | 384 |
1 files changed, 384 insertions, 0 deletions
diff --git a/v8/src/flag-definitions.h b/v8/src/flag-definitions.h new file mode 100644 index 0000000..db49453 --- /dev/null +++ b/v8/src/flag-definitions.h @@ -0,0 +1,384 @@ +// Copyright 2008 the V8 project authors. All rights reserved. +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following +// disclaimer in the documentation and/or other materials provided +// with the distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// This file defines all of the flags. It is separated into different section, +// for Debug, Release, Logging and Profiling, etc. To add a new flag, find the +// correct section, and use one of the DEFINE_ macros, without a trailing ';'. +// +// This include does not have a guard, because it is a template-style include, +// which can be included multiple times in different modes. It expects to have +// a mode defined before it's included. The modes are FLAG_MODE_... below: + +// We want to declare the names of the variables for the header file. Normally +// this will just be an extern declaration, but for a readonly flag we let the +// compiler make better optimizations by giving it the value. +#if defined(FLAG_MODE_DECLARE) +#define FLAG_FULL(ftype, ctype, nam, def, cmt) \ + extern ctype FLAG_##nam; +#define FLAG_READONLY(ftype, ctype, nam, def, cmt) \ + static ctype const FLAG_##nam = def; + +// We want to supply the actual storage and value for the flag variable in the +// .cc file. We only do this for writable flags. +#elif defined(FLAG_MODE_DEFINE) +#define FLAG_FULL(ftype, ctype, nam, def, cmt) \ + ctype FLAG_##nam = def; +#define FLAG_READONLY(ftype, ctype, nam, def, cmt) + +// We need to define all of our default values so that the Flag structure can +// access them by pointer. These are just used internally inside of one .cc, +// for MODE_META, so there is no impact on the flags interface. +#elif defined(FLAG_MODE_DEFINE_DEFAULTS) +#define FLAG_FULL(ftype, ctype, nam, def, cmt) \ + static ctype const FLAGDEFAULT_##nam = def; +#define FLAG_READONLY(ftype, ctype, nam, def, cmt) + + +// We want to write entries into our meta data table, for internal parsing and +// printing / etc in the flag parser code. We only do this for writable flags. +#elif defined(FLAG_MODE_META) +#define FLAG_FULL(ftype, ctype, nam, def, cmt) \ + { Flag::TYPE_##ftype, #nam, &FLAG_##nam, &FLAGDEFAULT_##nam, cmt, false }, +#define FLAG_READONLY(ftype, ctype, nam, def, cmt) + +#else +#error No mode supplied when including flags.defs +#endif + +#ifdef FLAG_MODE_DECLARE +// Structure used to hold a collection of arguments to the JavaScript code. +struct JSArguments { +public: + JSArguments(); + JSArguments(int argc, const char** argv); + int argc() const; + const char** argv(); + const char*& operator[](int idx); + JSArguments& operator=(JSArguments args); +private: + int argc_; + const char** argv_; +}; +#endif + +#define DEFINE_bool(nam, def, cmt) FLAG(BOOL, bool, nam, def, cmt) +#define DEFINE_int(nam, def, cmt) FLAG(INT, int, nam, def, cmt) +#define DEFINE_float(nam, def, cmt) FLAG(FLOAT, double, nam, def, cmt) +#define DEFINE_string(nam, def, cmt) FLAG(STRING, const char*, nam, def, cmt) +#define DEFINE_args(nam, def, cmt) FLAG(ARGS, JSArguments, nam, def, cmt) + +// +// Flags in all modes. +// +#define FLAG FLAG_FULL + +// assembler-ia32.cc / assembler-arm.cc +DEFINE_bool(debug_code, false, + "generate extra code (comments, assertions) for debugging") +DEFINE_bool(emit_branch_hints, false, "emit branch hints") +DEFINE_bool(push_pop_elimination, true, + "eliminate redundant push/pops in assembly code") +DEFINE_bool(print_push_pop_elimination, false, + "print elimination of redundant push/pops in assembly code") + +// bootstrapper.cc +DEFINE_string(expose_natives_as, NULL, "expose natives in global object") +DEFINE_string(expose_debug_as, NULL, "expose debug in global object") +DEFINE_string(natives_file, NULL, "alternative natives file") +DEFINE_bool(expose_gc, false, "expose gc extension") + +// builtins-ia32.cc +DEFINE_bool(inline_new, true, "use fast inline allocation") + +// checks.cc +DEFINE_bool(stack_trace_on_abort, true, + "print a stack trace if an assertion failure occurs") + +// codegen-ia32.cc / codegen-arm.cc +DEFINE_bool(trace, false, "trace function calls") +DEFINE_bool(defer_negation, true, "defer negation operation") +DEFINE_bool(check_stack, true, + "check stack for overflow, interrupt, breakpoint") + +// codegen.cc +DEFINE_bool(lazy, true, "use lazy compilation") +DEFINE_bool(debug_info, true, "add debug information to compiled functions") + +// compiler.cc +DEFINE_bool(strict, false, "strict error checking") +DEFINE_int(min_preparse_length, 1024, + "Minimum length for automatic enable preparsing") + +// debug.cc +DEFINE_bool(remote_debugging, false, "enable remote debugging") +DEFINE_bool(trace_debug_json, false, "trace debugging JSON request/response") +DEFINE_bool(debugger_auto_break, false, + "automatically set the debug break flag when debugger commands are " + "in the queue (experimental)") + +// execution.cc +DEFINE_bool(call_regexp, false, "allow calls to RegExp objects") + +// frames.cc +DEFINE_int(max_stack_trace_source_length, 300, + "maximum length of function source code printed in a stack trace.") + +// heap.cc +DEFINE_int(new_space_size, 0, "size of (each semispace in) the new generation") +DEFINE_int(old_space_size, 0, "size of the old generation") +DEFINE_bool(gc_global, false, "always perform global GCs") +DEFINE_int(gc_interval, -1, "garbage collect after <n> allocations") +DEFINE_bool(trace_gc, false, + "print one trace line following each garbage collection") +DEFINE_bool(collect_maps, true, + "garbage collect maps from which no objects can be reached") + +// ic.cc +DEFINE_bool(use_ic, true, "use inline caching") + +// macro-assembler-ia32.cc +DEFINE_bool(native_code_counters, false, + "generate extra code for manipulating stats counters") + +// mark-compact.cc +DEFINE_bool(always_compact, false, "Perform compaction on every full GC") +DEFINE_bool(never_compact, false, + "Never perform compaction on full GC - testing only") +DEFINE_bool(cleanup_ics_at_gc, true, + "Flush inline caches prior to mark compact collection.") +DEFINE_bool(cleanup_caches_in_maps_at_gc, true, + "Flush code caches in maps during mark compact cycle.") + +DEFINE_bool(canonicalize_object_literal_maps, true, + "Canonicalize maps for object literals.") + +// mksnapshot.cc +DEFINE_bool(h, false, "print this message") + +// parser.cc +DEFINE_bool(allow_natives_syntax, false, "allow natives syntax") + +// rewriter.cc +DEFINE_bool(optimize_ast, true, "optimize the ast") + +// simulator-arm.cc +DEFINE_bool(trace_sim, false, "trace simulator execution") +DEFINE_int(stop_sim_at, 0, "Simulator stop after x number of instructions") + +// top.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.") + +// usage-analyzer.cc +DEFINE_bool(usage_computation, true, "compute variable usage counts") + +// v8.cc +DEFINE_bool(preemption, false, + "activate a 100ms timer that switches between V8 threads") + +// Regexp +DEFINE_bool(trace_regexps, false, "trace regexp execution") +DEFINE_bool(regexp_native, true, + "use native code regexp implementation (IA32 only)") +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") +DEFINE_bool(debugger, true, "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") +DEFINE_string(map_counters, false, "Map counters to a file") +DEFINE_args(js_arguments, JSArguments(), + "Pass all remaining arguments to the script. Alias for \"--\".") + +// +// 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(trace_calls, false, "trace calls") +DEFINE_bool(trace_builtin_calls, false, "trace builtins calls") +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") +DEFINE_bool(print_rset, false, "print remembered sets before 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)") + +// Regexp +DEFINE_bool(trace_regexp_bytecodes, false, "trace regexp bytecode execution") +DEFINE_bool(trace_regexp_assembler, + false, + "trace regexp macro assembler calls.") + +// +// Logging and profiling only flags +// +#undef FLAG +#ifdef ENABLE_LOGGING_AND_PROFILING +#define FLAG FLAG_FULL +#else +#define FLAG FLAG_READONLY +#endif + +// 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_state_changes, false, "Log state changes.") +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(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(oprofile, false, "Enable JIT agent for OProfile.") + +// +// Heap protection flags +// Using heap protection requires ENABLE_LOGGING_AND_PROFILING as well. +// +#ifdef ENABLE_HEAP_PROTECTION +#undef FLAG +#define FLAG FLAG_FULL + +DEFINE_bool(protect_heap, false, + "Protect/unprotect V8's heap when leaving/entring the VM.") + +#endif + +// +// Disassembler only flags +// +#undef FLAG +#ifdef ENABLE_DISASSEMBLER +#define FLAG FLAG_FULL +#else +#define FLAG FLAG_READONLY +#endif + +// 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_builtin_code, false, "print generated code for builtins") + +// Cleanup... +#undef FLAG_FULL +#undef FLAG_READONLY +#undef FLAG + +#undef DEFINE_bool +#undef DEFINE_int +#undef DEFINE_string + +#undef FLAG_MODE_DECLARE +#undef FLAG_MODE_DEFINE +#undef FLAG_MODE_DEFINE_DEFAULTS +#undef FLAG_MODE_META |