Beispiel #1
0
static void zend_init_exception_op(void) /* {{{ */
{
	memset(EG(exception_op), 0, sizeof(EG(exception_op)));
	EG(exception_op)[0].opcode = ZEND_HANDLE_EXCEPTION;
	ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op));
	EG(exception_op)[1].opcode = ZEND_HANDLE_EXCEPTION;
	ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+1);
	EG(exception_op)[2].opcode = ZEND_HANDLE_EXCEPTION;
	ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+2);
}
Beispiel #2
0
static void zend_optimize_op_array(zend_op_array      *op_array,
                                   zend_optimizer_ctx *ctx)
{
	zend_op *opline, *end;

	/* Revert pass_two() */
	opline = op_array->opcodes;
	end = opline + op_array->last;
	while (opline < end) {
		if (opline->op1_type == IS_CONST) {
			ZEND_PASS_TWO_UNDO_CONSTANT(op_array, opline->op1);
		}
		if (opline->op2_type == IS_CONST) {
			ZEND_PASS_TWO_UNDO_CONSTANT(op_array, opline->op2);
		}
		opline++;
	}

	/* Do actual optimizations */
	zend_optimize(op_array, ctx);

	/* Redo pass_two() */
	opline = op_array->opcodes;
	end = opline + op_array->last;
	while (opline < end) {
		if (opline->op1_type == IS_CONST) {
			ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, opline->op1);
		}
		if (opline->op2_type == IS_CONST) {
			ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, opline->op2);
		}
		ZEND_VM_SET_OPCODE_HANDLER(opline);
		opline++;
	}
}
Beispiel #3
0
static void zend_init_call_trampoline_op(void) /* {{{ */
{
	memset(&EG(call_trampoline_op), 0, sizeof(EG(call_trampoline_op)));
	EG(call_trampoline_op).opcode = ZEND_CALL_TRAMPOLINE;
	EG(call_trampoline_op).op1_type = IS_UNUSED;
	EG(call_trampoline_op).op2_type = IS_UNUSED;
	EG(call_trampoline_op).result_type = IS_UNUSED;
	ZEND_VM_SET_OPCODE_HANDLER(&EG(call_trampoline_op));
}
Beispiel #4
0
static void zend_accel_optimize(zend_op_array      *op_array,
                                zend_optimizer_ctx *ctx)
{
	zend_op *opline, *end;

	/* Revert pass_two() */
	opline = op_array->opcodes;
	end = opline + op_array->last;
	while (opline < end) {
		if (opline->op1_type == IS_CONST) {
			ZEND_PASS_TWO_UNDO_CONSTANT(op_array, opline->op1);
		}
		if (opline->op2_type == IS_CONST) {
			ZEND_PASS_TWO_UNDO_CONSTANT(op_array, opline->op2);
		}
		switch (opline->opcode) {
			case ZEND_JMP:
			case ZEND_FAST_CALL:
			case ZEND_DECLARE_ANON_CLASS:
			case ZEND_DECLARE_ANON_INHERITED_CLASS:
				ZEND_PASS_TWO_UNDO_JMP_TARGET(op_array, opline, ZEND_OP1(opline));
				break;
			case ZEND_JMPZNZ:
				/* relative offset into absolute index */
				opline->extended_value = ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, opline->extended_value);
				/* break omitted intentionally */
			case ZEND_JMPZ:
			case ZEND_JMPNZ:
			case ZEND_JMPZ_EX:
			case ZEND_JMPNZ_EX:
			case ZEND_JMP_SET:
			case ZEND_COALESCE:
			case ZEND_NEW:
			case ZEND_FE_RESET_R:
			case ZEND_FE_RESET_RW:
			case ZEND_ASSERT_CHECK:
				ZEND_PASS_TWO_UNDO_JMP_TARGET(op_array, opline, ZEND_OP2(opline));
				break;
			case ZEND_FE_FETCH_R:
			case ZEND_FE_FETCH_RW:
				opline->extended_value = ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, opline->extended_value);
				break;
		}
		opline++;
	}

	/* Do actual optimizations */
	zend_optimize(op_array, ctx);

	/* Redo pass_two() */
	opline = op_array->opcodes;
	end = opline + op_array->last;
	while (opline < end) {
		if (opline->op1_type == IS_CONST) {
			ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, opline->op1);
		}
		if (opline->op2_type == IS_CONST) {
			ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, opline->op2);
		}
		switch (opline->opcode) {
			case ZEND_JMP:
			case ZEND_FAST_CALL:
			case ZEND_DECLARE_ANON_CLASS:
			case ZEND_DECLARE_ANON_INHERITED_CLASS:
				ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, ZEND_OP1(opline));
				break;
			case ZEND_JMPZNZ:
				/* absolute index to relative offset */
				opline->extended_value = ZEND_OPLINE_NUM_TO_OFFSET(op_array, opline, opline->extended_value);
				/* break omitted intentionally */
			case ZEND_JMPZ:
			case ZEND_JMPNZ:
			case ZEND_JMPZ_EX:
			case ZEND_JMPNZ_EX:
			case ZEND_JMP_SET:
			case ZEND_COALESCE:
			case ZEND_NEW:
			case ZEND_FE_RESET_R:
			case ZEND_FE_RESET_RW:
			case ZEND_ASSERT_CHECK:
				ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, ZEND_OP2(opline));
				break;
			case ZEND_FE_FETCH_R:
			case ZEND_FE_FETCH_RW:
				opline->extended_value = ZEND_OPLINE_NUM_TO_OFFSET(op_array, opline, opline->extended_value);
				break;
		}
		ZEND_VM_SET_OPCODE_HANDLER(opline);
		opline++;
	}
}
Beispiel #5
0
static void zend_file_cache_unserialize_op_array(zend_op_array           *op_array,
                                                 zend_persistent_script  *script,
                                                 void                    *buf)
{
	if (op_array->static_variables && !IS_UNSERIALIZED(op_array->static_variables)) {
		HashTable *ht;

		UNSERIALIZE_PTR(op_array->static_variables);
		ht = op_array->static_variables;
		zend_file_cache_unserialize_hash(ht,
				script, buf, zend_file_cache_unserialize_zval, ZVAL_PTR_DTOR);
	}

	if (op_array->literals && !IS_UNSERIALIZED(op_array->literals)) {
		zval *p, *end;

		UNSERIALIZE_PTR(op_array->literals);
		p = op_array->literals;
		end = p + op_array->last_literal;
		while (p < end) {
			zend_file_cache_unserialize_zval(p, script, buf);
			p++;
		}
	}

	if (!IS_UNSERIALIZED(op_array->opcodes)) {
		zend_op *opline, *end;

		UNSERIALIZE_PTR(op_array->opcodes);
		opline = op_array->opcodes;
		end = opline + op_array->last;
		while (opline < end) {
# if ZEND_USE_ABS_CONST_ADDR
			if (opline->op1_type == IS_CONST) {
				UNSERIALIZE_PTR(opline->op1.zv);
			}
			if (opline->op2_type == IS_CONST) {
				UNSERIALIZE_PTR(opline->op2.zv);
			}
# endif
# if ZEND_USE_ABS_JMP_ADDR
			switch (opline->opcode) {
				case ZEND_JMP:
				case ZEND_FAST_CALL:
				case ZEND_DECLARE_ANON_CLASS:
				case ZEND_DECLARE_ANON_INHERITED_CLASS:
					UNSERIALIZE_PTR(opline->op1.jmp_addr);
					break;
				case ZEND_JMPZNZ:
					/* relative extended_value don't have to be changed */
					/* break omitted intentionally */
				case ZEND_JMPZ:
				case ZEND_JMPNZ:
				case ZEND_JMPZ_EX:
				case ZEND_JMPNZ_EX:
				case ZEND_JMP_SET:
				case ZEND_COALESCE:
				case ZEND_NEW:
				case ZEND_FE_RESET_R:
				case ZEND_FE_RESET_RW:
				case ZEND_ASSERT_CHECK:
					UNSERIALIZE_PTR(opline->op2.jmp_addr);
					break;
				case ZEND_FE_FETCH_R:
				case ZEND_FE_FETCH_RW:
					/* relative extended_value don't have to be changed */
					break;
			}
# endif
			ZEND_VM_SET_OPCODE_HANDLER(opline);
			opline++;
		}

		if (op_array->arg_info) {
			zend_arg_info *p, *end;
			UNSERIALIZE_PTR(op_array->arg_info);
			p = op_array->arg_info;
			end = p + op_array->num_args;
			if (op_array->fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {
				p--;
			}
			if (op_array->fn_flags & ZEND_ACC_VARIADIC) {
				end++;
			}
			while (p < end) {
				if (!IS_UNSERIALIZED(p->name)) {
					UNSERIALIZE_STR(p->name);
				}
				if (!IS_UNSERIALIZED(p->class_name)) {
					UNSERIALIZE_STR(p->class_name);
				}
				p++;
			}
		}

		if (op_array->vars) {
			zend_string **p, **end;

			UNSERIALIZE_PTR(op_array->vars);
			p = op_array->vars;
			end = p + op_array->last_var;
			while (p < end) {
				if (!IS_UNSERIALIZED(*p)) {
					UNSERIALIZE_STR(*p);
				}
				p++;
			}
		}

		UNSERIALIZE_STR(op_array->function_name);
		UNSERIALIZE_STR(op_array->filename);
		UNSERIALIZE_PTR(op_array->live_range);
		UNSERIALIZE_PTR(op_array->scope);
		UNSERIALIZE_STR(op_array->doc_comment);
		UNSERIALIZE_PTR(op_array->try_catch_array);
		UNSERIALIZE_PTR(op_array->prototype);
	}
}