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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.
179 lines
8.6 KiB
C
179 lines
8.6 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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#ifndef ZEND_VM_OPCODES_H
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#define ZEND_VM_OPCODES_H
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ZEND_API const char *zend_get_opcode_name(zend_uchar opcode);
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#define ZEND_NOP 0
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#define ZEND_ADD 1
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#define ZEND_SUB 2
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#define ZEND_MUL 3
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#define ZEND_DIV 4
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#define ZEND_MOD 5
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#define ZEND_SL 6
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#define ZEND_SR 7
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#define ZEND_CONCAT 8
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#define ZEND_BW_OR 9
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#define ZEND_BW_AND 10
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#define ZEND_BW_XOR 11
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#define ZEND_BW_NOT 12
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#define ZEND_BOOL_NOT 13
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#define ZEND_BOOL_XOR 14
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#define ZEND_IS_IDENTICAL 15
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#define ZEND_IS_NOT_IDENTICAL 16
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#define ZEND_IS_EQUAL 17
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#define ZEND_IS_NOT_EQUAL 18
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#define ZEND_IS_SMALLER 19
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#define ZEND_IS_SMALLER_OR_EQUAL 20
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#define ZEND_CAST 21
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#define ZEND_QM_ASSIGN 22
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#define ZEND_ASSIGN_ADD 23
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#define ZEND_ASSIGN_SUB 24
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#define ZEND_ASSIGN_MUL 25
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#define ZEND_ASSIGN_DIV 26
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#define ZEND_ASSIGN_MOD 27
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#define ZEND_ASSIGN_SL 28
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#define ZEND_ASSIGN_SR 29
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#define ZEND_ASSIGN_CONCAT 30
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#define ZEND_ASSIGN_BW_OR 31
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#define ZEND_ASSIGN_BW_AND 32
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#define ZEND_ASSIGN_BW_XOR 33
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#define ZEND_PRE_INC 34
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#define ZEND_PRE_DEC 35
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#define ZEND_POST_INC 36
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#define ZEND_POST_DEC 37
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#define ZEND_ASSIGN 38
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#define ZEND_ASSIGN_REF 39
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#define ZEND_ECHO 40
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#define ZEND_PRINT 41
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#define ZEND_JMP 42
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#define ZEND_JMPZ 43
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#define ZEND_JMPNZ 44
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#define ZEND_JMPZNZ 45
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#define ZEND_JMPZ_EX 46
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#define ZEND_JMPNZ_EX 47
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#define ZEND_CASE 48
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#define ZEND_SWITCH_FREE 49
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#define ZEND_BRK 50
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#define ZEND_CONT 51
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#define ZEND_BOOL 52
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#define ZEND_INIT_STRING 53
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#define ZEND_ADD_CHAR 54
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#define ZEND_ADD_STRING 55
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#define ZEND_ADD_VAR 56
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#define ZEND_BEGIN_SILENCE 57
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#define ZEND_END_SILENCE 58
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#define ZEND_INIT_FCALL_BY_NAME 59
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#define ZEND_DO_FCALL 60
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#define ZEND_INIT_FCALL 61
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#define ZEND_RETURN 62
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#define ZEND_RECV 63
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#define ZEND_RECV_INIT 64
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#define ZEND_SEND_VAL 65
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#define ZEND_SEND_VAR 66
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#define ZEND_SEND_REF 67
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#define ZEND_NEW 68
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#define ZEND_INIT_NS_FCALL_BY_NAME 69
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#define ZEND_FREE 70
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#define ZEND_INIT_ARRAY 71
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#define ZEND_ADD_ARRAY_ELEMENT 72
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#define ZEND_INCLUDE_OR_EVAL 73
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#define ZEND_UNSET_VAR 74
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#define ZEND_UNSET_DIM 75
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#define ZEND_UNSET_OBJ 76
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#define ZEND_FE_RESET 77
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#define ZEND_FE_FETCH 78
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#define ZEND_EXIT 79
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#define ZEND_FETCH_R 80
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#define ZEND_FETCH_DIM_R 81
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#define ZEND_FETCH_OBJ_R 82
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#define ZEND_FETCH_W 83
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#define ZEND_FETCH_DIM_W 84
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#define ZEND_FETCH_OBJ_W 85
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#define ZEND_FETCH_RW 86
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#define ZEND_FETCH_DIM_RW 87
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#define ZEND_FETCH_OBJ_RW 88
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#define ZEND_FETCH_IS 89
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#define ZEND_FETCH_DIM_IS 90
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#define ZEND_FETCH_OBJ_IS 91
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#define ZEND_FETCH_FUNC_ARG 92
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#define ZEND_FETCH_DIM_FUNC_ARG 93
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#define ZEND_FETCH_OBJ_FUNC_ARG 94
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#define ZEND_FETCH_UNSET 95
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#define ZEND_FETCH_DIM_UNSET 96
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#define ZEND_FETCH_OBJ_UNSET 97
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#define ZEND_FETCH_DIM_TMP_VAR 98
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#define ZEND_FETCH_CONSTANT 99
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#define ZEND_GOTO 100
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#define ZEND_EXT_STMT 101
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#define ZEND_EXT_FCALL_BEGIN 102
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#define ZEND_EXT_FCALL_END 103
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#define ZEND_EXT_NOP 104
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#define ZEND_TICKS 105
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#define ZEND_SEND_VAR_NO_REF 106
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#define ZEND_CATCH 107
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#define ZEND_THROW 108
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#define ZEND_FETCH_CLASS 109
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#define ZEND_CLONE 110
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#define ZEND_RETURN_BY_REF 111
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#define ZEND_INIT_METHOD_CALL 112
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#define ZEND_INIT_STATIC_METHOD_CALL 113
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#define ZEND_ISSET_ISEMPTY_VAR 114
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#define ZEND_ISSET_ISEMPTY_DIM_OBJ 115
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#define ZEND_PRE_INC_OBJ 132
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#define ZEND_PRE_DEC_OBJ 133
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#define ZEND_POST_INC_OBJ 134
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#define ZEND_POST_DEC_OBJ 135
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#define ZEND_ASSIGN_OBJ 136
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#define ZEND_INSTANCEOF 138
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#define ZEND_DECLARE_CLASS 139
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#define ZEND_DECLARE_INHERITED_CLASS 140
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#define ZEND_DECLARE_FUNCTION 141
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#define ZEND_RAISE_ABSTRACT_ERROR 142
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#define ZEND_DECLARE_CONST 143
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#define ZEND_ADD_INTERFACE 144
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#define ZEND_DECLARE_INHERITED_CLASS_DELAYED 145
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#define ZEND_VERIFY_ABSTRACT_CLASS 146
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#define ZEND_ASSIGN_DIM 147
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#define ZEND_ISSET_ISEMPTY_PROP_OBJ 148
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#define ZEND_HANDLE_EXCEPTION 149
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#define ZEND_USER_OPCODE 150
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#define ZEND_JMP_SET 152
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#define ZEND_DECLARE_LAMBDA_FUNCTION 153
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#define ZEND_ADD_TRAIT 154
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#define ZEND_BIND_TRAITS 155
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#define ZEND_SEPARATE 156
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#define ZEND_QM_ASSIGN_VAR 157
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#define ZEND_JMP_SET_VAR 158
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#define ZEND_DISCARD_EXCEPTION 159
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#define ZEND_YIELD 160
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#define ZEND_GENERATOR_RETURN 161
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#define ZEND_FAST_CALL 162
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#define ZEND_FAST_RET 163
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#define ZEND_RECV_VARIADIC 164
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#define ZEND_SEND_UNPACK 165
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#define ZEND_POW 166
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#define ZEND_ASSIGN_POW 167
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#define ZEND_BIND_GLOBAL 168
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#endif
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