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v8/src/flag-definitions.h
deanm@chromium.org 61f3a82506 Remove the ARM jump elimination. This completely removes jump elimination. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@394 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-09-30 09:42:08 +00:00

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// 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 },
#define FLAG_READONLY(ftype, ctype, nam, def, cmt)
#else
#error No mode supplied when including flags.defs
#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)
//
// 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")
// 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")
// 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")
// 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")
// 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
//
// 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")
// code-stubs.cc
DEFINE_bool(print_code_stubs, false, "print code stubs")
// codegen-ia32.cc / codegen-arm.cc
DEFINE_bool(trace_codegen, false,
"print name of functions for which code is generated")
DEFINE_bool(print_builtin_code, false, "print generated code for builtins")
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)")
//
// 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_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(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.")
//
// Disassembler only flags
//
#undef FLAG
#ifdef ENABLE_DISASSEMBLER
#define FLAG FLAG_FULL
#else
#define FLAG FLAG_READONLY
#endif
// codegen-ia32.cc / codegen-arm.cc
DEFINE_bool(print_code, false, "print generated code")
// 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
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