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srm_oparray.c
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srm_oparray.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) 1997-2016 Derick Rethans |
+----------------------------------------------------------------------+
| This source file is subject to the 2-Clause BSD license which is |
| available through the LICENSE file, or online at |
| http://opensource.org/licenses/bsd-license.php |
+----------------------------------------------------------------------+
| Authors: Derick Rethans <[email protected]> |
| Andrei Zmievski <[email protected]> |
| Marcus Börger <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id: srm_oparray.c,v 1.60 2009-11-25 12:55:40 derick Exp $ */
#include "php.h"
#include "zend_alloc.h"
#include "zend_compile.h"
#include "branchinfo.h"
#include "srm_oparray.h"
#include "ext/standard/url.h"
#include "set.h"
#include "php_vld.h"
#include "helper.h"
ZEND_EXTERN_MODULE_GLOBALS(vld)
#if ZEND_USE_ABS_JMP_ADDR
# define VLD_ZNODE_JMP_LINE(node, opline, base) (int32_t)(((long)((node).jmp_addr) - (long)(base_address)) / sizeof(zend_op))
#else
# define VLD_ZNODE_JMP_LINE(node, opline, base) (int32_t)(((int32_t)((node).jmp_offset) / sizeof(zend_op)) + (opline))
#endif
/* Input zend_compile.h
* And replace [^(...)(#define )([^ \t]+).*$]
* BY [/=* \1 *=/ { "\3", ALL_USED },] REMEMBER to remove the two '=' signs
*/
static const op_usage opcodes[] = {
/* 0 */ { "NOP", NONE_USED },
/* 1 */ { "ADD", ALL_USED },
/* 2 */ { "SUB", ALL_USED },
/* 3 */ { "MUL", ALL_USED },
/* 4 */ { "DIV", ALL_USED },
/* 5 */ { "MOD", ALL_USED },
/* 6 */ { "SL", ALL_USED },
/* 7 */ { "SR", ALL_USED },
/* 8 */ { "CONCAT", ALL_USED },
/* 9 */ { "BW_OR", ALL_USED },
/* 10 */ { "BW_AND", ALL_USED },
/* 11 */ { "BW_XOR", ALL_USED },
/* 12 */ { "BW_NOT", RES_USED | OP1_USED },
/* 13 */ { "BOOL_NOT", RES_USED | OP1_USED },
/* 14 */ { "BOOL_XOR", ALL_USED },
/* 15 */ { "IS_IDENTICAL", ALL_USED },
/* 16 */ { "IS_NOT_IDENTICAL", ALL_USED },
/* 17 */ { "IS_EQUAL", ALL_USED },
/* 18 */ { "IS_NOT_EQUAL", ALL_USED },
/* 19 */ { "IS_SMALLER", ALL_USED },
/* 20 */ { "IS_SMALLER_OR_EQUAL", ALL_USED },
/* 21 */ { "CAST", ALL_USED | EXT_VAL },
/* 22 */ { "QM_ASSIGN", RES_USED | OP1_USED },
/* 23 */ { "ASSIGN_ADD", ALL_USED | EXT_VAL },
/* 24 */ { "ASSIGN_SUB", ALL_USED | EXT_VAL },
/* 25 */ { "ASSIGN_MUL", ALL_USED | EXT_VAL },
/* 26 */ { "ASSIGN_DIV", ALL_USED | EXT_VAL },
/* 27 */ { "ASSIGN_MOD", ALL_USED | EXT_VAL },
/* 28 */ { "ASSIGN_SL", ALL_USED | EXT_VAL },
/* 29 */ { "ASSIGN_SR", ALL_USED | EXT_VAL },
/* 30 */ { "ASSIGN_CONCAT", ALL_USED | EXT_VAL },
/* 31 */ { "ASSIGN_BW_OR", ALL_USED | EXT_VAL },
/* 32 */ { "ASSIGN_BW_AND", ALL_USED | EXT_VAL },
/* 33 */ { "ASSIGN_BW_XOR", ALL_USED | EXT_VAL },
/* 34 */ { "PRE_INC", OP1_USED | RES_USED },
/* 35 */ { "PRE_DEC", OP1_USED | RES_USED },
/* 36 */ { "POST_INC", OP1_USED | RES_USED },
/* 37 */ { "POST_DEC", OP1_USED | RES_USED },
/* 38 */ { "ASSIGN", ALL_USED },
/* 39 */ { "ASSIGN_REF", SPECIAL },
/* 40 */ { "ECHO", OP1_USED },
#if PHP_VERSION_ID < 70000
/* 41 */ { "PRINT", RES_USED | OP1_USED },
#elif PHP_VERSION_ID < 70100
/* 41 */ { "UNKNOWN", ALL_USED },
#else
/* 41 */ { "GENERATOR_CREATE", RES_USED },
#endif
/* 42 */ { "JMP", OP1_USED | OP1_OPLINE },
/* 43 */ { "JMPZ", OP1_USED | OP2_USED | OP2_OPLINE },
/* 44 */ { "JMPNZ", OP1_USED | OP2_USED | OP2_OPLINE },
/* 45 */ { "JMPZNZ", SPECIAL },
/* 46 */ { "JMPZ_EX", ALL_USED | OP2_OPLINE },
/* 47 */ { "JMPNZ_EX", ALL_USED | OP2_OPLINE },
/* 48 */ { "CASE", ALL_USED },
/* 49 */ { "SWITCH_FREE", RES_USED | OP1_USED },
/* 50 */ { "BRK", SPECIAL },
/* 51 */ { "CONT", ALL_USED },
/* 52 */ { "BOOL", RES_USED | OP1_USED },
#if defined(ZEND_ENGINE_3)
/* 53 */ { "FAST_CONCAT", ALL_USED },
/* 54 */ { "ROPE_INIT", ALL_USED | EXT_VAL },
/* 55 */ { "ROPE_ADD", ALL_USED | EXT_VAL },
/* 56 */ { "ROPE_END", ALL_USED | EXT_VAL },
#else
/* 53 */ { "INIT_STRING", RES_USED },
/* 54 */ { "ADD_CHAR", ALL_USED },
/* 55 */ { "ADD_STRING", ALL_USED },
/* 56 */ { "ADD_VAR", ALL_USED },
#endif
/* 57 */ { "BEGIN_SILENCE", ALL_USED },
/* 58 */ { "END_SILENCE", ALL_USED },
/* 59 */ { "INIT_FCALL_BY_NAME", SPECIAL },
/* 60 */ { "DO_FCALL", SPECIAL },
#if defined(ZEND_ENGINE_3)
/* 61 */ { "INIT_FCALL", ALL_USED },
#else
/* 61 */ { "DO_FCALL_BY_NAME", SPECIAL },
#endif
/* 62 */ { "RETURN", OP1_USED },
/* 63 */ { "RECV", RES_USED | OP1_USED },
/* 64 */ { "RECV_INIT", ALL_USED },
/* 65 */ { "SEND_VAL", OP1_USED },
#if defined(ZEND_ENGINE_3)
/* 66 */ { "SEND_VAR_EX", ALL_USED },
#else
/* 66 */ { "SEND_VAR", OP1_USED },
#endif
/* 67 */ { "SEND_REF", ALL_USED },
/* 68 */ { "NEW", SPECIAL },
#if (PHP_MAJOR_VERSION < 5) || (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION < 1)
/* 69 */ { "JMP_NO_CTOR", SPECIAL },
#else
# if (PHP_MAJOR_VERSION > 5) || (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 3)
/* 69 */ { "INIT_NS_FCALL_BY_NAME", SPECIAL },
# else
/* 69 */ { "UNKNOWN", ALL_USED },
# endif
#endif
/* 70 */ { "FREE", OP1_USED },
/* 71 */ { "INIT_ARRAY", ALL_USED },
/* 72 */ { "ADD_ARRAY_ELEMENT", ALL_USED },
/* 73 */ { "INCLUDE_OR_EVAL", ALL_USED | OP2_INCLUDE },
/* 74 */ { "UNSET_VAR", ALL_USED },
#if defined(ZEND_ENGINE_2) || defined(ZEND_ENGINE_3)
/* 75 */ { "UNSET_DIM", ALL_USED },
/* 76 */ { "UNSET_OBJ", ALL_USED },
#else
/* 75 */ { "UNSET_DIM_OBJ", ALL_USED },
/* 76 */ { "ISSET_ISEMPTY", ALL_USED },
#endif
#if defined(ZEND_ENGINE_3)
/* 77 */ { "FE_RESET_R", SPECIAL },
/* 78 */ { "FE_FETCH_R", ALL_USED | EXT_VAL_JMP_REL },
#else
/* 77 */ { "FE_RESET", SPECIAL },
/* 78 */ { "FE_FETCH", ALL_USED | OP2_OPNUM },
#endif
/* 79 */ { "EXIT", ALL_USED },
/* 80 */ { "FETCH_R", RES_USED | OP1_USED | OP_FETCH },
/* 81 */ { "FETCH_DIM_R", ALL_USED },
/* 82 */ { "FETCH_OBJ_R", ALL_USED },
/* 83 */ { "FETCH_W", RES_USED | OP1_USED | OP_FETCH },
/* 84 */ { "FETCH_DIM_W", ALL_USED },
/* 85 */ { "FETCH_OBJ_W", ALL_USED },
/* 86 */ { "FETCH_RW", RES_USED | OP1_USED | OP_FETCH },
/* 87 */ { "FETCH_DIM_RW", ALL_USED },
/* 88 */ { "FETCH_OBJ_RW", ALL_USED },
/* 89 */ { "FETCH_IS", ALL_USED },
/* 90 */ { "FETCH_DIM_IS", ALL_USED },
/* 91 */ { "FETCH_OBJ_IS", ALL_USED },
/* 92 */ { "FETCH_FUNC_ARG", RES_USED | OP1_USED | OP_FETCH },
/* 93 */ { "FETCH_DIM_FUNC_ARG", ALL_USED },
/* 94 */ { "FETCH_OBJ_FUNC_ARG", ALL_USED },
/* 95 */ { "FETCH_UNSET", ALL_USED },
/* 96 */ { "FETCH_DIM_UNSET", ALL_USED },
/* 97 */ { "FETCH_OBJ_UNSET", ALL_USED },
#if defined(ZEND_ENGINE_3)
/* 98 */ { "FETCH_LIST", ALL_USED },
#else
/* 98 */ { "FETCH_DIM_TMP_VAR", ALL_USED },
#endif
/* 99 */ { "FETCH_CONSTANT", ALL_USED },
#if (PHP_MAJOR_VERSION < 5) || (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION < 3)
/* 100 */ { "DECLARE_FUNCTION_OR_CLASS", ALL_USED },
#else
/* 100 */ { "GOTO", ALL_USED | OP1_OPLINE },
#endif
/* 101 */ { "EXT_STMT", ALL_USED },
/* 102 */ { "EXT_FCALL_BEGIN", ALL_USED },
/* 103 */ { "EXT_FCALL_END", ALL_USED },
/* 104 */ { "EXT_NOP", ALL_USED },
/* 105 */ { "TICKS", ALL_USED },
/* 106 */ { "SEND_VAR_NO_REF", ALL_USED | EXT_VAL },
#if PHP_VERSION_ID >= 50000
/* 107 */ { "CATCH", SPECIAL },
/* 108 */ { "THROW", ALL_USED | EXT_VAL },
/* 109 */ { "FETCH_CLASS", SPECIAL },
/* 110 */ { "CLONE", ALL_USED },
#if (PHP_MAJOR_VERSION < 5) || (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION <= 2)
/* 111 */ { "INIT_CTOR_CALL", ALL_USED },
#else
# if PHP_VERSION_ID >= 50400
/* 111 */ { "RETURN_BY_REF", OP1_USED },
# else
/* 111 */ { "UNKNOWN", ALL_USED },
# endif
#endif
/* 112 */ { "INIT_METHOD_CALL", ALL_USED },
/* 113 */ { "INIT_STATIC_METHOD_CALL", ALL_USED },
/* 114 */ { "ISSET_ISEMPTY_VAR", ALL_USED | EXT_VAL },
/* 115 */ { "ISSET_ISEMPTY_DIM_OBJ", ALL_USED | EXT_VAL },
#if defined(ZEND_ENGINE_3)
/* 116 */ { "SEND_VAL_EX", ALL_USED },
/* 117 */ { "SEND_VAR", ALL_USED },
/* 118 */ { "INIT_USER_CALL", ALL_USED | EXT_VAL },
#else
/* 116 */ { "IMPORT_FUNCTION", ALL_USED },
/* 117 */ { "IMPORT_CLASS", ALL_USED },
/* 118 */ { "IMPORT_CONST", ALL_USED },
#endif
/* 119 */ { "UNKNOWN", ALL_USED },
/* 120 */ { "UNKNOWN", ALL_USED },
#if defined(ZEND_ENGINE_3)
/* 121 */ { "STRLEN", ALL_USED },
/* 122 */ { "DEFINED", ALL_USED },
/* 123 */ { "TYPE_CHECK", ALL_USED | EXT_VAL },
/* 124 */ { "VERIFY_RETURN_TYPE", ALL_USED },
/* 125 */ { "FE_RESET_RW", SPECIAL },
/* 126 */ { "FE_FETCH_RW", ALL_USED | EXT_VAL_JMP_REL },
/* 127 */ { "FE_FREE", ALL_USED },
/* 128 */ { "INIT_DYNAMIC_CALL", ALL_USED },
/* 129 */ { "DO_ICALL", ALL_USED },
/* 130 */ { "DO_UCALL", ALL_USED },
/* 131 */ { "DO_FCALL_BY_NAME", SPECIAL },
#else
/* 121 */ { "ASSIGN_ADD_OBJ", ALL_USED },
/* 122 */ { "ASSIGN_SUB_OBJ", ALL_USED },
/* 123 */ { "ASSIGN_MUL_OBJ", ALL_USED },
/* 124 */ { "ASSIGN_DIV_OBJ", ALL_USED },
/* 125 */ { "ASSIGN_MOD_OBJ", ALL_USED },
/* 126 */ { "ASSIGN_SL_OBJ", ALL_USED },
/* 127 */ { "ASSIGN_SR_OBJ", ALL_USED },
/* 128 */ { "ASSIGN_CONCAT_OBJ", ALL_USED },
/* 129 */ { "ASSIGN_BW_OR_OBJ", ALL_USED },
/* 130 */ { "ASSIGN_BW_AND_OBJ", ALL_USED },
/* 131 */ { "ASSIGN_BW_XOR_OBJ", ALL_USED },
#endif
/* 132 */ { "PRE_INC_OBJ", ALL_USED },
/* 133 */ { "PRE_DEC_OBJ", ALL_USED },
/* 134 */ { "POST_INC_OBJ", ALL_USED },
/* 135 */ { "POST_DEC_OBJ", ALL_USED },
/* 136 */ { "ASSIGN_OBJ", ALL_USED },
/* 137 */ { "OP_DATA", ALL_USED },
/* 138 */ { "INSTANCEOF", ALL_USED },
/* 139 */ { "DECLARE_CLASS", ALL_USED },
/* 140 */ { "DECLARE_INHERITED_CLASS", ALL_USED },
/* 141 */ { "DECLARE_FUNCTION", ALL_USED },
/* 142 */ { "RAISE_ABSTRACT_ERROR", ALL_USED },
/* 143 */ { "DECLARE_CONST", OP1_USED | OP2_USED },
/* 144 */ { "ADD_INTERFACE", ALL_USED },
/* 145 */ { "VERIFY_INSTANCEOF", ALL_USED },
/* 146 */ { "VERIFY_ABSTRACT_CLASS", ALL_USED },
/* 147 */ { "ASSIGN_DIM", ALL_USED },
/* 148 */ { "ISSET_ISEMPTY_PROP_OBJ", ALL_USED },
/* 149 */ { "HANDLE_EXCEPTION", NONE_USED },
/* 150 */ { "USER_OPCODE", ALL_USED },
#if defined(ZEND_ENGINE_3)
/* 151 */ { "ASSERT_CHECK", ALL_USED },
#else
/* 151 */ { "UNKNOWN", ALL_USED },
#endif
/* 152 */ { "JMP_SET", ALL_USED | OP2_OPLINE },
/* 153 */ { "DECLARE_LAMBDA_FUNCTION", OP1_USED },
/* 154 */ { "ADD_TRAIT", ALL_USED },
/* 155 */ { "BIND_TRAITS", OP1_USED },
/* 156 */ { "SEPARATE", OP1_USED | RES_USED },
#if defined(ZEND_ENGINE_3)
/* 157 */ { "FETCH_CLASS_NAME", ALL_USED },
#else
/* 157 */ { "QM_ASSIGN_VAR", OP1_USED | RES_USED },
#endif
/* 158 */ { "JMP_SET_VAR", OP1_USED | RES_USED },
/* 159 */ { "DISCARD_EXCEPTION", NONE_USED },
/* 160 */ { "YIELD", ALL_USED },
/* 161 */ { "GENERATOR_RETURN", NONE_USED },
/* 162 */ { "FAST_CALL", SPECIAL },
/* 163 */ { "FAST_RET", SPECIAL },
/* 164 */ { "RECV_VARIADIC", ALL_USED },
/* 165 */ { "SEND_UNPACK", ALL_USED },
/* 166 */ { "POW", ALL_USED },
/* 167 */ { "ASSIGN_POW", ALL_USED },
/* 168 */ { "BIND_GLOBAL", ALL_USED },
/* 169 */ { "COALESCE", ALL_USED },
/* 170 */ { "SPACESHIP", ALL_USED },
#endif
#if PHP_VERSION_ID >= 70100
/* 171 */ { "DECLARE_ANON_CLASS", OP2_USED | RES_USED | RES_CLASS },
/* 172 */ { "DECLARE_ANON_INHERITED_CLASS", OP2_USED | RES_USED | RES_CLASS },
/* 173 */ { "FETCH_STATIC_PROP_R", RES_USED | OP1_USED | OP_FETCH },
/* 174 */ { "FETCH_STATIC_PROP_W", RES_USED | OP1_USED | OP_FETCH },
/* 175 */ { "FETCH_STATIC_PROP_RW", RES_USED | OP1_USED | OP_FETCH },
/* 176 */ { "FETCH_STATIC_PROP_IS", ALL_USED },
/* 177 */ { "FETCH_STATIC_PROP_FUNC_ARG", RES_USED | OP1_USED | OP_FETCH },
/* 178 */ { "FETCH_STATIC_PROP_UNSET", ALL_USED },
/* 179 */ { "UNSET_STATIC_PROP", ALL_USED },
/* 180 */ { "ISSET_ISEMPTY_STATIC_PROP", RES_USED | OP1_USED },
/* 181 */ { "FETCH_CLASS_CONSTANT", ALL_USED },
/* 182 */ { "BIND_LEXICAL", ALL_USED },
/* 183 */ { "BIND_STATIC", ALL_USED },
/* 184 */ { "FETCH_THIS", ALL_USED },
/* 185 */ { "UNKNOWN", ALL_USED },
/* 186 */ { "ISSET_ISEMPTY_THIS", ALL_USED },
#endif
#if PHP_VERSION_ID >= 70200
/* 187 */ { "SWITCH_LONG", OP1_USED | OP2_USED | OP2_JMP_ARRAY | EXT_VAL_JMP_REL },
/* 188 */ { "SWITCH_STRING", OP1_USED | OP2_USED | OP2_JMP_ARRAY | EXT_VAL_JMP_REL },
/* 189 */ { "IN_ARRAY", ALL_USED },
/* 190 */ { "COUNT", ALL_USED },
/* 191 */ { "GET_CLASS", ALL_USED },
/* 192 */ { "GET_CALLED_CLASS", ALL_USED },
/* 193 */ { "GET_TYPE", ALL_USED },
/* 194 */ { "FUNC_NUM_ARGS", ALL_USED },
/* 195 */ { "FUNC_GET_ARGS", ALL_USED },
#endif
};
#if PHP_VERSION_ID < 70000
zend_brk_cont_element* vld_find_brk_cont(int nest_levels, int array_offset, zend_op_array *op_array);
#endif
static inline int vld_dump_zval_null(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "null");
}
static inline int vld_dump_zval_long(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "%ld", value.lval);
}
static inline int vld_dump_zval_double(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "%g", value.dval);
}
static inline int vld_dump_zval_string(ZVAL_VALUE_TYPE value)
{
ZVAL_VALUE_STRING_TYPE *new_str;
#if PHP_VERSION_ID < 70000
int new_len;
#endif
int len;
new_str = php_url_encode(ZVAL_STRING_VALUE(value), ZVAL_STRING_LEN(value) PHP_URLENCODE_NEW_LEN(new_len));
len = vld_printf (stderr, "'%s'", ZSTRING_VALUE(new_str));
efree(new_str);
return len;
}
static inline int vld_dump_zval_array(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<array>");
}
static inline int vld_dump_zval_object(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<object>");
}
static inline int vld_dump_zval_bool(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<bool>");
}
static inline int vld_dump_zval_true(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<true>");
}
static inline int vld_dump_zval_false(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<false>");
}
static inline int vld_dump_zval_resource(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<resource>");
}
static inline int vld_dump_zval_constant(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<const:'%s'>", ZVAL_STRING_VALUE(value));
}
#if PHP_VERSION_ID >= 50600
static inline int vld_dump_zval_constant_ast(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<const ast>");
}
#else
static inline int vld_dump_zval_constant_array(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<const array>");
}
#endif
static inline int vld_dump_zval_undef(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<undef>");
}
static inline int vld_dump_zval_reference(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<reference>");
}
static inline int vld_dump_zval_callable(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<callable>");
}
static inline int vld_dump_zval_indirect(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<indirect>");
}
static inline int vld_dump_zval_ptr(ZVAL_VALUE_TYPE value)
{
return vld_printf (stderr, "<ptr>");
}
int vld_dump_zval (zval val)
{
#if PHP_VERSION_ID >= 70000
switch (val.u1.v.type) {
#else
switch (val.type) {
#endif
case IS_NULL: return vld_dump_zval_null (val.value);
case IS_LONG: return vld_dump_zval_long (val.value);
case IS_DOUBLE: return vld_dump_zval_double (val.value);
case IS_STRING: return vld_dump_zval_string (val.value);
case IS_ARRAY: return vld_dump_zval_array (val.value);
case IS_OBJECT: return vld_dump_zval_object (val.value);
case IS_RESOURCE: return vld_dump_zval_resource (val.value);
case IS_CONSTANT: return vld_dump_zval_constant (val.value);
#if PHP_VERSION_ID >= 50600
case IS_CONSTANT_AST: return vld_dump_zval_constant_ast (val.value);
#else
case IS_CONSTANT_ARRAY: return vld_dump_zval_constant_array (val.value);
#endif
#if PHP_VERSION_ID >= 70000
case IS_UNDEF: return vld_dump_zval_undef (val.value);
case IS_FALSE: return vld_dump_zval_false (val.value);
case IS_TRUE: return vld_dump_zval_true (val.value);
case IS_REFERENCE: return vld_dump_zval_reference (val.value);
case IS_CALLABLE: return vld_dump_zval_callable (val.value);
case IS_INDIRECT: return vld_dump_zval_indirect (val.value);
case IS_PTR: return vld_dump_zval_ptr (val.value);
#else
case IS_BOOL: return vld_dump_zval_bool (val.value);
#endif
}
return vld_printf(stderr, "<unknown>");
}
int vld_dump_znode (int *print_sep, unsigned int node_type, VLD_ZNODE node, unsigned int base_address, zend_op_array *op_array, int opline TSRMLS_DC)
{
int len = 0;
if (node_type != IS_UNUSED && print_sep) {
if (*print_sep) {
len += vld_printf (stderr, ", ");
}
*print_sep = 1;
}
switch (node_type) {
case IS_UNUSED:
VLD_PRINT(3, " IS_UNUSED ");
break;
case IS_CONST: /* 1 */
#if PHP_VERSION_ID >= 70000
VLD_PRINT1(3, " IS_CONST (%d) ", VLD_ZNODE_ELEM(node, var) / sizeof(zval));
#else
VLD_PRINT1(3, " IS_CONST (%d) ", VLD_ZNODE_ELEM(node, var) / sizeof(temp_variable));
#endif
#if PHP_VERSION_ID >= 70300
vld_dump_zval(*RT_CONSTANT((op_array->opcodes) + opline, node));
#elif PHP_VERSION_ID >= 70000
vld_dump_zval(*RT_CONSTANT_EX(op_array->literals, node));
#else
# if PHP_VERSION_ID >= 50399
vld_dump_zval(*node.zv);
# else
vld_dump_zval(node.u.constant);
# endif
#endif
break;
#if defined(ZEND_ENGINE_2) || defined(ZEND_ENGINE_3)
case IS_TMP_VAR: /* 2 */
VLD_PRINT(3, " IS_TMP_VAR ");
len += vld_printf (stderr, "~%d", VAR_NUM(VLD_ZNODE_ELEM(node, var)));
break;
case IS_VAR: /* 4 */
VLD_PRINT(3, " IS_VAR ");
len += vld_printf (stderr, "$%d", VAR_NUM(VLD_ZNODE_ELEM(node, var)));
break;
#if (PHP_MAJOR_VERSION > 5) || (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 1)
case IS_CV: /* 16 */
VLD_PRINT(3, " IS_CV ");
#if PHP_VERSION_ID >= 70000
len += vld_printf (stderr, "!%d", (VLD_ZNODE_ELEM(node, var)-sizeof(zend_execute_data)) / sizeof(zval));
#else
len += vld_printf (stderr, "!%d", VLD_ZNODE_ELEM(node, var));
#endif
break;
#endif
case VLD_IS_OPNUM:
#if PHP_VERSION_ID >= 70000
len += vld_printf (stderr, "->%d", VLD_ZNODE_JMP_LINE(node, opline, base_address));
#else
len += vld_printf (stderr, "->%d", VLD_ZNODE_ELEM(node, opline_num));
#endif
break;
case VLD_IS_OPLINE:
#if PHP_VERSION_ID >= 70000
len += vld_printf (stderr, "->%d", VLD_ZNODE_JMP_LINE(node, opline, base_address));
#else
len += vld_printf (stderr, "->%d", (VLD_ZNODE_ELEM(node, opline_num) - base_address) / sizeof(zend_op));
#endif
break;
case VLD_IS_CLASS:
len += vld_printf (stderr, ":%d", VAR_NUM(VLD_ZNODE_ELEM(node, var)));
break;
# if PHP_VERSION_ID >= 70200
case VLD_IS_JMP_ARRAY: {
zval *array_value;
HashTable *myht;
zend_ulong num;
zend_string *key;
zval *val;
array_value = RT_CONSTANT_EX(op_array->literals, node);
myht = Z_ARRVAL_P(array_value);
len += vld_printf (stderr, "[ ");
ZEND_HASH_FOREACH_KEY_VAL_IND(myht, num, key, val) {
if (key == NULL) {
len += vld_printf (stderr, "%d:->%d, ", num, opline + (val->value.lval / sizeof(zend_op)));
} else {
len += vld_printf (stderr, "'%s':->%d, ", ZSTRING_VALUE(key), opline + (val->value.lval / sizeof(zend_op)));
}
} ZEND_HASH_FOREACH_END();
len += vld_printf (stderr, "]");
}
break;
# endif /* PHP_VERSION_ID */
#else /* ZEND_ENGINE_1 */
case IS_TMP_VAR: /* 2 */
len += vld_printf (stderr, "~%d", node.u.var);
break;
case IS_VAR: /* 4 */
len += vld_printf (stderr, "$%d", node.u.var);
break;
case VLD_IS_OPNUM:
case VLD_IS_OPLINE:
len += vld_printf (stderr, "->%d", node.u.opline_num);
break;
case VLD_IS_CLASS:
len += vld_printf (stderr, ":%d", node.u.var);
break;
#endif
default:
return 0;
}
return len;
}
static unsigned int vld_get_special_flags(const zend_op *op, unsigned int base_address)
{
unsigned int flags = 0;
switch (op->opcode) {
#if PHP_VERSION_ID >= 70000
case ZEND_FE_RESET_R:
case ZEND_FE_RESET_RW:
#else
case ZEND_FE_RESET:
#endif
flags = ALL_USED;
#if (PHP_MAJOR_VERSION > 5) || (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 1)
flags |= OP2_OPNUM;
#elif (PHP_MAJOR_VERSION > 4) || (PHP_MAJOR_VERSION == 4 && PHP_MINOR_VERSION > 3) || (PHP_MAJOR_VERSION == 4 && PHP_MINOR_VERSION == 3 && PHP_RELEASE_VERSION >= 11)
flags |= NOP2_OPNUM;
#endif
break;
case ZEND_ASSIGN_REF:
flags = OP1_USED | OP2_USED;
if (op->VLD_TYPE(result) != IS_UNUSED) {
flags |= RES_USED;
}
break;
#if PHP_VERSION_ID < 70000
case ZEND_DO_FCALL_BY_NAME:
#endif
case ZEND_DO_FCALL:
flags = OP1_USED | RES_USED | EXT_VAL;
/*flags = ALL_USED | EXT_VAL;
op->op2.op_type = IS_CONST;
op->op2.u.constant.type = IS_LONG;*/
break;
case ZEND_INIT_FCALL_BY_NAME:
flags = OP2_USED;
if (op->VLD_TYPE(op1) != IS_UNUSED) {
flags |= OP1_USED;
}
break;
case ZEND_JMPZNZ:
flags = OP1_USED | OP2_USED | EXT_VAL | OP2_OPNUM;
// op->result = op->op1;
break;
#if (PHP_MAJOR_VERSION < 5) || (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION < 1)
case ZEND_JMP_NO_CTOR:
flags = OP2_USED | OP2_OPNUM;
if (op->VLD_TYPE(op1) != IS_UNUSED) {
flags |= OP1_USED;
}
break;
#endif
#if defined(ZEND_ENGINE_2) || defined(ZEND_ENGINE_3)
case ZEND_FETCH_CLASS:
flags = EXT_VAL|RES_USED|OP2_USED|RES_CLASS;
break;
#endif
case ZEND_NEW:
flags = RES_USED|OP1_USED;
#if defined(ZEND_ENGINE_2) || defined(ZEND_ENGINE_3)
flags |= OP1_CLASS;
#endif
break;
case ZEND_BRK:
case ZEND_CONT:
flags = OP2_USED|OP2_BRK_CONT;
break;
#if PHP_VERSION_ID >= 50500
case ZEND_FAST_CALL:
flags = OP1_USED|OP1_OPLINE;
if (op->extended_value) {
flags |= OP2_USED|OP2_OPNUM|EXT_VAL;
}
break;
case ZEND_FAST_RET:
if (op->extended_value) {
flags = OP2_USED|OP2_OPNUM|EXT_VAL;
}
break;
#endif
#if PHP_VERSION_ID >= 50000
case ZEND_CATCH:
flags = ALL_USED;
if (!op->result.num) {
#if PHP_VERSION_ID >= 70100
flags |= EXT_VAL_JMP_REL;
#else
flags |= EXT_VAL_JMP_ABS;
#endif
}
break;
#endif
}
return flags;
}
#define NUM_KNOWN_OPCODES (sizeof(opcodes)/sizeof(opcodes[0]))
void vld_dump_op(int nr, zend_op * op_ptr, unsigned int base_address, int notdead, int entry, int start, int end, zend_op_array *opa TSRMLS_DC)
{
static uint last_lineno = (uint) -1;
int print_sep = 0, len;
char *fetch_type = "";
unsigned int flags, op1_type, op2_type, res_type;
const zend_op op = op_ptr[nr];
if (zend_vm_get_opcode_handler(op_ptr[nr].opcode, &(op_ptr[nr])) != op_ptr[nr].handler)
{
php_printf("Op Number: %d, Op Address: %p: \n", nr, &(op_ptr[nr]));
php_printf("Address of PHP zend handler is %p\n", zend_vm_get_opcode_handler(op_ptr[nr].opcode, &(op_ptr[nr])) );
php_printf("Actual handler for current zend_op is %p\n", op_ptr[nr].handler);
php_printf("JMP to -> %p\n", op_ptr[nr].op1.jmp_addr);
}
// source guardian ops don't have line numbers
// so they're all line 0
if (op.lineno == 0 && !VLD_G(sg_decode)) {
return;
}
if (op.opcode >= NUM_KNOWN_OPCODES) {
flags = ALL_USED;
} else {
flags = opcodes[op.opcode].flags;
}
op1_type = op.VLD_TYPE(op1);
op2_type = op.VLD_TYPE(op2);
res_type = op.VLD_TYPE(result);
if (flags == SPECIAL) {
flags = vld_get_special_flags(&op, base_address);
}
if (flags & OP1_OPLINE) {
op1_type = VLD_IS_OPLINE;
}
if (flags & OP2_OPLINE) {
op2_type = VLD_IS_OPLINE;
}
if (flags & OP1_OPNUM) {
op1_type = VLD_IS_OPNUM;
}
if (flags & OP2_OPNUM) {
op2_type = VLD_IS_OPNUM;
}
if (flags & OP1_CLASS) {
op1_type = VLD_IS_CLASS;
}
if (flags & RES_CLASS) {
res_type = VLD_IS_CLASS;
}
if (flags & OP2_JMP_ARRAY) {
op2_type = VLD_IS_JMP_ARRAY;
}
#if PHP_VERSION_ID >= 50600 && PHP_VERSION_ID < 70100
switch (op.opcode) {
case ZEND_FAST_RET:
if (op.extended_value == ZEND_FAST_RET_TO_FINALLY) {
fetch_type = "to_finally";
} else if (op.extended_value == ZEND_FAST_RET_TO_CATCH) {
fetch_type = "to_catch";
}
break;
case ZEND_FAST_CALL:
if (op.extended_value == ZEND_FAST_CALL_FROM_FINALLY) {
fetch_type = "from_finally";
}
break;
}
#endif
if (flags & OP_FETCH) {
#if defined(ZEND_ENGINE_2) || defined(ZEND_ENGINE_3)
switch (op.VLD_EXTENDED_VALUE(op2)) {
case ZEND_FETCH_GLOBAL:
fetch_type = "global";
break;
case ZEND_FETCH_LOCAL:
fetch_type = "local";
break;
#if PHP_VERSION_ID < 70100
case ZEND_FETCH_STATIC:
fetch_type = "static";
break;
case ZEND_FETCH_STATIC_MEMBER:
fetch_type = "static member";
break;
#endif
#ifdef ZEND_FETCH_GLOBAL_LOCK
case ZEND_FETCH_GLOBAL_LOCK:
fetch_type = "global lock";
break;
#endif
#ifdef ZEND_FETCH_AUTO_GLOBAL
case ZEND_FETCH_AUTO_GLOBAL:
fetch_type = "auto global";
break;
#endif
default:
fetch_type = "unknown";
break;
}
#else /* ZEND_ENGINE_1 */
if (op.op2.u.fetch_type == ZEND_FETCH_GLOBAL) {
fetch_type = "global";
} else if (op.op2.u.fetch_type == ZEND_FETCH_STATIC) {
fetch_type = "static";
}
#endif
}
if (op.lineno == last_lineno) {
vld_printf(stderr, " ");
} else {
vld_printf(stderr, "%4d ", op.lineno);
last_lineno = op.lineno;
}
if (op.opcode >= NUM_KNOWN_OPCODES) {
if (VLD_G(format)) {
vld_printf(stderr, "%5d %s %c %c %c %c %s <%03d>%-23s %s %-14s ", nr, VLD_G(col_sep), notdead ? ' ' : '*', entry ? 'E' : ' ', start ? '>' : ' ', end ? '>' : ' ', VLD_G(col_sep), op.opcode, VLD_G(col_sep), fetch_type);
} else {
vld_printf(stderr, "%5d%c %c %c %c <%03d>%-23s %-14s ", nr, notdead ? ' ' : '*', entry ? 'E' : ' ', start ? '>' : ' ', end ? '>' : ' ', op.opcode, "", fetch_type);
}
} else {
if (VLD_G(format)) {
vld_printf(stderr, "%5d %s %c %c %c %c %s %-28s %s %-14s ", nr, VLD_G(col_sep), notdead ? ' ' : '*', entry ? 'E' : ' ', start ? '>' : ' ', end ? '>' : ' ', VLD_G(col_sep), opcodes[op.opcode].name, VLD_G(col_sep), fetch_type);
} else {
vld_printf(stderr, "%5d%c %c %c %c %-28s %-14s ", nr, notdead ? ' ' : '*', entry ? 'E' : ' ', start ? '>' : ' ', end ? '>' : ' ', opcodes[op.opcode].name, fetch_type);
}
}
if (flags & EXT_VAL) {
vld_printf(stderr, "%3d ", op.extended_value);
} else {
vld_printf(stderr, " ");
}
#if PHP_VERSION_ID >= 70100
if ((flags & RES_USED) && op.result_type != IS_UNUSED) {
#else
if ((flags & RES_USED) && !(op.VLD_EXTENDED_VALUE(result) & EXT_TYPE_UNUSED)) {
#endif
VLD_PRINT(3, " RES[ ");
len = vld_dump_znode (NULL, res_type, op.result, base_address, opa, nr TSRMLS_CC);
VLD_PRINT(3, " ]");
if (VLD_G(format)) {
if (len==0) {
vld_printf(stderr, " ");
}
} else {
vld_printf(stderr, "%*s", 8-len, " ");
}
} else {
vld_printf(stderr, " ");
}
if (flags & OP1_USED) {
VLD_PRINT(3, " OP1[ ");
vld_dump_znode (&print_sep, op1_type, op.op1, base_address, opa, nr TSRMLS_CC);
VLD_PRINT(3, " ]");
}
if (flags & OP2_USED) {
VLD_PRINT(3, " OP2[ ");
if (flags & OP2_INCLUDE) {
if (VLD_G(verbosity) < 3 && print_sep) {
vld_printf(stderr, ", ");
}
#if PHP_VERSION_ID >= 50399
switch (op.extended_value) {
#else
switch (Z_LVAL(op.op2.u.constant)) {
#endif
case ZEND_INCLUDE_ONCE:
vld_printf(stderr, "INCLUDE_ONCE");
break;
case ZEND_REQUIRE_ONCE:
vld_printf(stderr, "REQUIRE_ONCE");
break;
case ZEND_INCLUDE:
vld_printf(stderr, "INCLUDE");
break;
case ZEND_REQUIRE:
vld_printf(stderr, "REQUIRE");
break;
case ZEND_EVAL:
vld_printf(stderr, "EVAL");
break;
default:
vld_printf(stderr, "!!ERROR!!");
break;
}
} else {
vld_dump_znode (&print_sep, op2_type, op.op2, base_address, opa, nr TSRMLS_CC);
}
VLD_PRINT(3, " ]");
}
#if PHP_VERSION_ID < 70000
if (flags & OP2_BRK_CONT) {
long jmp;
zend_brk_cont_element *el;
VLD_PRINT(3, " BRK_CONT[ ");
#if PHP_VERSION_ID >= 50399
el = vld_find_brk_cont(Z_LVAL_P(op.op2.zv), VLD_ZNODE_ELEM(op.op1, opline_num), opa);
#else
el = vld_find_brk_cont(op.op2.u.constant.value.lval, VLD_ZNODE_ELEM(op.op1, opline_num), opa);
#endif
jmp = op.opcode == ZEND_BRK ? el->brk : el->cont;
vld_printf (stderr, ", ->%d", jmp);
VLD_PRINT(3, " ]");
}
#endif
if (flags & EXT_VAL_JMP_ABS) {
VLD_PRINT(3, " EXT_JMP_ABS[ ");
vld_printf (stderr, ", ->%d", op.extended_value);
VLD_PRINT(3, " ]");
}
if (flags & EXT_VAL_JMP_REL) {
VLD_PRINT(3, " EXT_JMP_REL[ ");
#if PHP_VERSION_ID >= 70000
vld_printf (stderr, ", ->%d", nr + ((int) op.extended_value / sizeof(zend_op)));
#else
vld_printf (stderr, ", ->%d", nr + op.extended_value);
#endif
VLD_PRINT(3, " ]");
}
if (flags & NOP2_OPNUM) {
zend_op next_op = op_ptr[nr+1];
vld_dump_znode (&print_sep, VLD_IS_OPNUM, next_op.op2, base_address, opa, nr TSRMLS_CC);
}
vld_printf (stderr, "\n");
}
void vld_analyse_oparray(zend_op_array *opa, vld_set *set, vld_branch_info *branch_info TSRMLS_DC);
void vld_analyse_branch(zend_op_array *opa, unsigned int position, vld_set *set, vld_branch_info *branch_info TSRMLS_DC);
void vld_dump_oparray(zend_op_array *opa TSRMLS_DC)
{
unsigned int i;
int j;
vld_set *set;
vld_branch_info *branch_info;
unsigned int base_address = (unsigned int)(zend_intptr_t)&(opa->opcodes[0]);
set = vld_set_create(opa->last);
branch_info = vld_branch_info_create(opa->last);
if (VLD_G(dump_paths)) {
vld_analyse_oparray(opa, set, branch_info TSRMLS_CC);
}
if (VLD_G(format)) {
vld_printf (stderr, "filename:%s%s\n", VLD_G(col_sep), ZSTRING_VALUE(opa->filename));
vld_printf (stderr, "function name:%s%s\n", VLD_G(col_sep), ZSTRING_VALUE(opa->function_name));
vld_printf (stderr, "number of ops:%s%d\n", VLD_G(col_sep), opa->last);
} else {
vld_printf (stderr, "filename: %s\n", ZSTRING_VALUE(opa->filename));
vld_printf (stderr, "function name: %s\n", ZSTRING_VALUE(opa->function_name));
vld_printf (stderr, "number of ops: %d\n", opa->last);
}
#ifdef IS_CV /* PHP >= 5.1 */
vld_printf (stderr, "compiled vars: ");
for (j = 0; j < opa->last_var; j++) {
vld_printf (stderr, "!%d = $%s%s", j, OPARRAY_VAR_NAME(opa->vars[j]), ((j + 1) == opa->last_var) ? "\n" : ", ");
}
if (!opa->last_var) {
vld_printf(stderr, "none\n");
}
#endif
if (VLD_G(format)) {
vld_printf(stderr, "line%s# *%s%s%sop%sfetch%sext%sreturn%soperands\n",VLD_G(col_sep),VLD_G(col_sep),VLD_G(col_sep),VLD_G(col_sep),VLD_G(col_sep),VLD_G(col_sep),VLD_G(col_sep),VLD_G(col_sep));
} else {
vld_printf(stderr, "line #* E I O op fetch ext return operands\n");
vld_printf(stderr, "-------------------------------------------------------------------------------------\n");
}
for (i = 0; i < opa->last; i++) {
vld_dump_op(i, opa->opcodes, base_address, vld_set_in(set, i), vld_set_in(branch_info->entry_points, i), vld_set_in(branch_info->starts, i), vld_set_in(branch_info->ends, i), opa TSRMLS_CC);
}
vld_printf(stderr, "\n");
if (VLD_G(dump_paths)) {
vld_branch_post_process(opa, branch_info);
vld_branch_find_paths(branch_info);
vld_branch_info_dump(opa, branch_info TSRMLS_CC);
}
vld_set_free(set);
vld_branch_info_free(branch_info);
}
void opt_set_nop (zend_op_array *opa, int nr)
{
opa->opcodes[nr].opcode = ZEND_NOP;
}
#if PHP_VERSION_ID < 70000
zend_brk_cont_element* vld_find_brk_cont(int nest_levels, int array_offset, zend_op_array *op_array)
{
zend_brk_cont_element *jmp_to;
do {
jmp_to = &op_array->brk_cont_array[array_offset];
array_offset = jmp_to->parent;
} while (--nest_levels > 0);
return jmp_to;
}
#endif
int vld_find_jump(zend_op_array *opa, unsigned int position, long *jmp1, long *jmp2)