/* | |
* Copyright (C) 2008, 2009 Apple Inc. All rights reserved. | |
* Copyright (C) 2008 Cameron Zwarich <cwzwarich@uwaterloo.ca> | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. 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. | |
* 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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. | |
*/ | |
#ifndef Opcode_h | |
#define Opcode_h | |
#include <algorithm> | |
#include <string.h> | |
#include <wtf/Assertions.h> | |
namespace JSC { | |
#define FOR_EACH_OPCODE_ID(macro) \ | |
macro(op_enter, 1) \ | |
macro(op_enter_with_activation, 2) \ | |
macro(op_init_arguments, 1) \ | |
macro(op_create_arguments, 1) \ | |
macro(op_convert_this, 2) \ | |
\ | |
macro(op_new_object, 2) \ | |
macro(op_new_array, 4) \ | |
macro(op_new_regexp, 3) \ | |
macro(op_mov, 3) \ | |
\ | |
macro(op_not, 3) \ | |
macro(op_eq, 4) \ | |
macro(op_eq_null, 3) \ | |
macro(op_neq, 4) \ | |
macro(op_neq_null, 3) \ | |
macro(op_stricteq, 4) \ | |
macro(op_nstricteq, 4) \ | |
macro(op_less, 4) \ | |
macro(op_lesseq, 4) \ | |
\ | |
macro(op_pre_inc, 2) \ | |
macro(op_pre_dec, 2) \ | |
macro(op_post_inc, 3) \ | |
macro(op_post_dec, 3) \ | |
macro(op_to_jsnumber, 3) \ | |
macro(op_negate, 3) \ | |
macro(op_add, 5) \ | |
macro(op_mul, 5) \ | |
macro(op_div, 5) \ | |
macro(op_mod, 4) \ | |
macro(op_sub, 5) \ | |
\ | |
macro(op_lshift, 4) \ | |
macro(op_rshift, 4) \ | |
macro(op_urshift, 4) \ | |
macro(op_bitand, 5) \ | |
macro(op_bitxor, 5) \ | |
macro(op_bitor, 5) \ | |
macro(op_bitnot, 3) \ | |
\ | |
macro(op_instanceof, 5) \ | |
macro(op_typeof, 3) \ | |
macro(op_is_undefined, 3) \ | |
macro(op_is_boolean, 3) \ | |
macro(op_is_number, 3) \ | |
macro(op_is_string, 3) \ | |
macro(op_is_object, 3) \ | |
macro(op_is_function, 3) \ | |
macro(op_in, 4) \ | |
\ | |
macro(op_resolve, 3) \ | |
macro(op_resolve_skip, 4) \ | |
macro(op_resolve_global, 6) \ | |
macro(op_get_scoped_var, 4) \ | |
macro(op_put_scoped_var, 4) \ | |
macro(op_get_global_var, 4) \ | |
macro(op_put_global_var, 4) \ | |
macro(op_resolve_base, 3) \ | |
macro(op_resolve_with_base, 4) \ | |
macro(op_get_by_id, 8) \ | |
macro(op_get_by_id_self, 8) \ | |
macro(op_get_by_id_self_list, 8) \ | |
macro(op_get_by_id_proto, 8) \ | |
macro(op_get_by_id_proto_list, 8) \ | |
macro(op_get_by_id_chain, 8) \ | |
macro(op_get_by_id_generic, 8) \ | |
macro(op_get_array_length, 8) \ | |
macro(op_get_string_length, 8) \ | |
macro(op_put_by_id, 8) \ | |
macro(op_put_by_id_transition, 8) \ | |
macro(op_put_by_id_replace, 8) \ | |
macro(op_put_by_id_generic, 8) \ | |
macro(op_del_by_id, 4) \ | |
macro(op_get_by_val, 4) \ | |
macro(op_get_by_pname, 7) \ | |
macro(op_put_by_val, 4) \ | |
macro(op_del_by_val, 4) \ | |
macro(op_put_by_index, 4) \ | |
macro(op_put_getter, 4) \ | |
macro(op_put_setter, 4) \ | |
\ | |
macro(op_jmp, 2) \ | |
macro(op_jtrue, 3) \ | |
macro(op_jfalse, 3) \ | |
macro(op_jeq_null, 3) \ | |
macro(op_jneq_null, 3) \ | |
macro(op_jneq_ptr, 4) \ | |
macro(op_jnless, 4) \ | |
macro(op_jnlesseq, 4) \ | |
macro(op_jless, 4) \ | |
macro(op_jmp_scopes, 3) \ | |
macro(op_loop, 2) \ | |
macro(op_loop_if_true, 3) \ | |
macro(op_loop_if_false, 3) \ | |
macro(op_loop_if_less, 4) \ | |
macro(op_loop_if_lesseq, 4) \ | |
macro(op_switch_imm, 4) \ | |
macro(op_switch_char, 4) \ | |
macro(op_switch_string, 4) \ | |
\ | |
macro(op_new_func, 3) \ | |
macro(op_new_func_exp, 3) \ | |
macro(op_call, 5) \ | |
macro(op_call_eval, 5) \ | |
macro(op_call_varargs, 5) \ | |
macro(op_load_varargs, 3) \ | |
macro(op_tear_off_activation, 2) \ | |
macro(op_tear_off_arguments, 1) \ | |
macro(op_ret, 2) \ | |
macro(op_method_check, 1) \ | |
\ | |
macro(op_construct, 7) \ | |
macro(op_construct_verify, 3) \ | |
macro(op_strcat, 4) \ | |
macro(op_to_primitive, 3) \ | |
\ | |
macro(op_get_pnames, 6) \ | |
macro(op_next_pname, 7) \ | |
\ | |
macro(op_push_scope, 2) \ | |
macro(op_pop_scope, 1) \ | |
macro(op_push_new_scope, 4) \ | |
\ | |
macro(op_catch, 2) \ | |
macro(op_throw, 2) \ | |
macro(op_new_error, 4) \ | |
\ | |
macro(op_jsr, 3) \ | |
macro(op_sret, 2) \ | |
\ | |
macro(op_debug, 4) \ | |
macro(op_profile_will_call, 2) \ | |
macro(op_profile_did_call, 2) \ | |
\ | |
macro(op_end, 2) // end must be the last opcode in the list | |
#define OPCODE_ID_ENUM(opcode, length) opcode, | |
typedef enum { FOR_EACH_OPCODE_ID(OPCODE_ID_ENUM) } OpcodeID; | |
#undef OPCODE_ID_ENUM | |
const int numOpcodeIDs = op_end + 1; | |
#define OPCODE_ID_LENGTHS(id, length) const int id##_length = length; | |
FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTHS); | |
#undef OPCODE_ID_LENGTHS | |
#define OPCODE_LENGTH(opcode) opcode##_length | |
#define OPCODE_ID_LENGTH_MAP(opcode, length) length, | |
const int opcodeLengths[numOpcodeIDs] = { FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTH_MAP) }; | |
#undef OPCODE_ID_LENGTH_MAP | |
#define VERIFY_OPCODE_ID(id, size) COMPILE_ASSERT(id <= op_end, ASSERT_THAT_JS_OPCODE_IDS_ARE_VALID); | |
FOR_EACH_OPCODE_ID(VERIFY_OPCODE_ID); | |
#undef VERIFY_OPCODE_ID | |
#if HAVE(COMPUTED_GOTO) | |
#if COMPILER(RVCT) || COMPILER(INTEL) | |
typedef void* Opcode; | |
#else | |
typedef const void* Opcode; | |
#endif | |
#else | |
typedef OpcodeID Opcode; | |
#endif | |
#if ENABLE(OPCODE_SAMPLING) || ENABLE(CODEBLOCK_SAMPLING) || ENABLE(OPCODE_STATS) | |
#define PADDING_STRING " " | |
#define PADDING_STRING_LENGTH static_cast<unsigned>(strlen(PADDING_STRING)) | |
extern const char* const opcodeNames[]; | |
inline const char* padOpcodeName(OpcodeID op, unsigned width) | |
{ | |
unsigned pad = width - strlen(opcodeNames[op]); | |
pad = std::min(pad, PADDING_STRING_LENGTH); | |
return PADDING_STRING + PADDING_STRING_LENGTH - pad; | |
} | |
#undef PADDING_STRING_LENGTH | |
#undef PADDING_STRING | |
#endif | |
#if ENABLE(OPCODE_STATS) | |
struct OpcodeStats { | |
OpcodeStats(); | |
~OpcodeStats(); | |
static long long opcodeCounts[numOpcodeIDs]; | |
static long long opcodePairCounts[numOpcodeIDs][numOpcodeIDs]; | |
static int lastOpcode; | |
static void recordInstruction(int opcode); | |
static void resetLastInstruction(); | |
}; | |
#endif | |
} // namespace JSC | |
#endif // Opcode_h |