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b7715c7e8a
In PHP-5.6 and below each argument passed to user function was copies on VM stack twice.
Now we always have ZEND_INIT_FCALL (or simular) opcode that pushes "call frame" on top of VM stack.
"Call frame" is actually the same zend_execute_data structure.
All the following ZEND_SEND instructions push arguments on top of the stack in a way that they directly comes into corresponding CV variables of the called frame. Extra arguments are copied at the end of stack frame (after all CV and TMP variables) on function enterance.
There are two minor incompatibilities:
1) It's not allowed to decalre functions redefining arguments e.g. "function foo($a,$a) {}".
2) func_get_arg() and func_get args() return the current value of argument and not the original value that was sent.
198 lines
4.5 KiB
C
198 lines
4.5 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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| Dmitry Stogov <dmitry@zend.com> |
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+----------------------------------------------------------------------+
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*/
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#include <stdio.h>
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#include <zend.h>
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const char *zend_vm_opcodes_map[169] = {
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"ZEND_NOP",
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"ZEND_ADD",
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"ZEND_SUB",
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"ZEND_MUL",
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"ZEND_DIV",
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"ZEND_MOD",
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"ZEND_SL",
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"ZEND_SR",
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"ZEND_CONCAT",
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"ZEND_BW_OR",
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"ZEND_BW_AND",
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"ZEND_BW_XOR",
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"ZEND_BW_NOT",
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"ZEND_BOOL_NOT",
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"ZEND_BOOL_XOR",
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"ZEND_IS_IDENTICAL",
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"ZEND_IS_NOT_IDENTICAL",
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"ZEND_IS_EQUAL",
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"ZEND_IS_NOT_EQUAL",
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"ZEND_IS_SMALLER",
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"ZEND_IS_SMALLER_OR_EQUAL",
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"ZEND_CAST",
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"ZEND_QM_ASSIGN",
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"ZEND_ASSIGN_ADD",
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"ZEND_ASSIGN_SUB",
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"ZEND_ASSIGN_MUL",
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"ZEND_ASSIGN_DIV",
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"ZEND_ASSIGN_MOD",
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"ZEND_ASSIGN_SL",
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"ZEND_ASSIGN_SR",
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"ZEND_ASSIGN_CONCAT",
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"ZEND_ASSIGN_BW_OR",
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"ZEND_ASSIGN_BW_AND",
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"ZEND_ASSIGN_BW_XOR",
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"ZEND_PRE_INC",
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"ZEND_PRE_DEC",
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"ZEND_POST_INC",
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"ZEND_POST_DEC",
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"ZEND_ASSIGN",
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"ZEND_ASSIGN_REF",
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"ZEND_ECHO",
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"ZEND_PRINT",
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"ZEND_JMP",
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"ZEND_JMPZ",
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"ZEND_JMPNZ",
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"ZEND_JMPZNZ",
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"ZEND_JMPZ_EX",
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"ZEND_JMPNZ_EX",
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"ZEND_CASE",
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"ZEND_SWITCH_FREE",
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"ZEND_BRK",
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"ZEND_CONT",
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"ZEND_BOOL",
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"ZEND_INIT_STRING",
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"ZEND_ADD_CHAR",
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"ZEND_ADD_STRING",
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"ZEND_ADD_VAR",
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"ZEND_BEGIN_SILENCE",
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"ZEND_END_SILENCE",
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"ZEND_INIT_FCALL_BY_NAME",
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"ZEND_DO_FCALL",
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"ZEND_INIT_FCALL",
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"ZEND_RETURN",
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"ZEND_RECV",
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"ZEND_RECV_INIT",
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"ZEND_SEND_VAL",
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"ZEND_SEND_VAR",
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"ZEND_SEND_REF",
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"ZEND_NEW",
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"ZEND_INIT_NS_FCALL_BY_NAME",
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"ZEND_FREE",
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"ZEND_INIT_ARRAY",
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"ZEND_ADD_ARRAY_ELEMENT",
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"ZEND_INCLUDE_OR_EVAL",
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"ZEND_UNSET_VAR",
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"ZEND_UNSET_DIM",
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"ZEND_UNSET_OBJ",
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"ZEND_FE_RESET",
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"ZEND_FE_FETCH",
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"ZEND_EXIT",
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"ZEND_FETCH_R",
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"ZEND_FETCH_DIM_R",
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"ZEND_FETCH_OBJ_R",
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"ZEND_FETCH_W",
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"ZEND_FETCH_DIM_W",
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"ZEND_FETCH_OBJ_W",
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"ZEND_FETCH_RW",
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"ZEND_FETCH_DIM_RW",
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"ZEND_FETCH_OBJ_RW",
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"ZEND_FETCH_IS",
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"ZEND_FETCH_DIM_IS",
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"ZEND_FETCH_OBJ_IS",
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"ZEND_FETCH_FUNC_ARG",
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"ZEND_FETCH_DIM_FUNC_ARG",
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"ZEND_FETCH_OBJ_FUNC_ARG",
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"ZEND_FETCH_UNSET",
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"ZEND_FETCH_DIM_UNSET",
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"ZEND_FETCH_OBJ_UNSET",
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"ZEND_FETCH_DIM_TMP_VAR",
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"ZEND_FETCH_CONSTANT",
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"ZEND_GOTO",
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"ZEND_EXT_STMT",
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"ZEND_EXT_FCALL_BEGIN",
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"ZEND_EXT_FCALL_END",
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"ZEND_EXT_NOP",
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"ZEND_TICKS",
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"ZEND_SEND_VAR_NO_REF",
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"ZEND_CATCH",
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"ZEND_THROW",
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"ZEND_FETCH_CLASS",
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"ZEND_CLONE",
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"ZEND_RETURN_BY_REF",
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"ZEND_INIT_METHOD_CALL",
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"ZEND_INIT_STATIC_METHOD_CALL",
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"ZEND_ISSET_ISEMPTY_VAR",
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"ZEND_ISSET_ISEMPTY_DIM_OBJ",
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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"ZEND_PRE_INC_OBJ",
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"ZEND_PRE_DEC_OBJ",
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"ZEND_POST_INC_OBJ",
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"ZEND_POST_DEC_OBJ",
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"ZEND_ASSIGN_OBJ",
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NULL,
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"ZEND_INSTANCEOF",
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"ZEND_DECLARE_CLASS",
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"ZEND_DECLARE_INHERITED_CLASS",
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"ZEND_DECLARE_FUNCTION",
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"ZEND_RAISE_ABSTRACT_ERROR",
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"ZEND_DECLARE_CONST",
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"ZEND_ADD_INTERFACE",
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"ZEND_DECLARE_INHERITED_CLASS_DELAYED",
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"ZEND_VERIFY_ABSTRACT_CLASS",
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"ZEND_ASSIGN_DIM",
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"ZEND_ISSET_ISEMPTY_PROP_OBJ",
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"ZEND_HANDLE_EXCEPTION",
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"ZEND_USER_OPCODE",
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NULL,
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"ZEND_JMP_SET",
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"ZEND_DECLARE_LAMBDA_FUNCTION",
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"ZEND_ADD_TRAIT",
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"ZEND_BIND_TRAITS",
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"ZEND_SEPARATE",
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"ZEND_QM_ASSIGN_VAR",
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"ZEND_JMP_SET_VAR",
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"ZEND_DISCARD_EXCEPTION",
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"ZEND_YIELD",
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"ZEND_GENERATOR_RETURN",
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"ZEND_FAST_CALL",
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"ZEND_FAST_RET",
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"ZEND_RECV_VARIADIC",
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"ZEND_SEND_UNPACK",
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"ZEND_POW",
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"ZEND_ASSIGN_POW",
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"ZEND_BIND_GLOBAL",
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};
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ZEND_API const char* zend_get_opcode_name(zend_uchar opcode) {
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return zend_vm_opcodes_map[opcode];
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}
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