#!/usr/bin/env php | +----------------------------------------------------------------------+ */ const HEADER_TEXT = <<< DATA /* +----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) Zend Technologies Ltd. (http://www.zend.com) | +----------------------------------------------------------------------+ | This source file is subject to version 2.00 of the Zend license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.zend.com/license/2_00.txt. | | If you did not receive a copy of the Zend license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@zend.com so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Authors: Andi Gutmans | | Zeev Suraski | | Dmitry Stogov | +----------------------------------------------------------------------+ */ DATA; /* This script creates zend_vm_execute.h and zend_vm_opcodes.h from existing zend_vm_def.h and zend_vm_execute.skl */ error_reporting(E_ALL); const ZEND_VM_KIND_CALL = 1; const ZEND_VM_KIND_SWITCH = 2; const ZEND_VM_KIND_GOTO = 3; const ZEND_VM_KIND_HYBRID = 4; $vm_op_flags = array( "ZEND_VM_OP_SPEC" => 1<<0, "ZEND_VM_OP_CONST" => 1<<1, "ZEND_VM_OP_TMPVAR" => 1<<2, "ZEND_VM_OP_TMPVARCV" => 1<<3, "ZEND_VM_OP_MASK" => 0xf0, "ZEND_VM_OP_NUM" => 0x10, "ZEND_VM_OP_JMP_ADDR" => 0x20, "ZEND_VM_OP_TRY_CATCH" => 0x30, // unused 0x40 "ZEND_VM_OP_THIS" => 0x50, "ZEND_VM_OP_NEXT" => 0x60, "ZEND_VM_OP_CLASS_FETCH" => 0x70, "ZEND_VM_OP_CONSTRUCTOR" => 0x80, "ZEND_VM_OP_CONST_FETCH" => 0x90, "ZEND_VM_OP_CACHE_SLOT" => 0xa0, "ZEND_VM_EXT_VAR_FETCH" => 1<<16, "ZEND_VM_EXT_ISSET" => 1<<17, "ZEND_VM_EXT_CACHE_SLOT" => 1<<18, "ZEND_VM_EXT_ARRAY_INIT" => 1<<19, "ZEND_VM_EXT_REF" => 1<<20, "ZEND_VM_EXT_FETCH_REF" => 1<<21, "ZEND_VM_EXT_DIM_WRITE" => 1<<22, "ZEND_VM_EXT_MASK" => 0x0f000000, "ZEND_VM_EXT_NUM" => 0x01000000, "ZEND_VM_EXT_LAST_CATCH" => 0x02000000, "ZEND_VM_EXT_JMP_ADDR" => 0x03000000, "ZEND_VM_EXT_OP" => 0x04000000, // unused 0x5000000 // unused 0x6000000 "ZEND_VM_EXT_TYPE" => 0x07000000, "ZEND_VM_EXT_EVAL" => 0x08000000, "ZEND_VM_EXT_TYPE_MASK" => 0x09000000, // unused 0x0a000000, "ZEND_VM_EXT_SRC" => 0x0b000000, // unused 0x0c000000, "ZEND_VM_NO_CONST_CONST" => 0x40000000, "ZEND_VM_COMMUTATIVE" => 0x80000000, ); foreach ($vm_op_flags as $name => $val) { define($name, $val); } $vm_op_decode = array( "ANY" => 0, "CONST" => ZEND_VM_OP_SPEC | ZEND_VM_OP_CONST, "TMP" => ZEND_VM_OP_SPEC, "VAR" => ZEND_VM_OP_SPEC, "UNUSED" => ZEND_VM_OP_SPEC, "CV" => ZEND_VM_OP_SPEC, "TMPVAR" => ZEND_VM_OP_SPEC | ZEND_VM_OP_TMPVAR, "TMPVARCV" => ZEND_VM_OP_SPEC | ZEND_VM_OP_TMPVARCV, "NUM" => ZEND_VM_OP_NUM, "JMP_ADDR" => ZEND_VM_OP_JMP_ADDR, "TRY_CATCH" => ZEND_VM_OP_TRY_CATCH, "THIS" => ZEND_VM_OP_THIS, "NEXT" => ZEND_VM_OP_NEXT, "CLASS_FETCH" => ZEND_VM_OP_CLASS_FETCH, "CONSTRUCTOR" => ZEND_VM_OP_CONSTRUCTOR, "CONST_FETCH" => ZEND_VM_OP_CONST_FETCH, "CACHE_SLOT" => ZEND_VM_OP_CACHE_SLOT, ); $vm_ext_decode = array( "NUM" => ZEND_VM_EXT_NUM, "LAST_CATCH" => ZEND_VM_EXT_LAST_CATCH, "JMP_ADDR" => ZEND_VM_EXT_JMP_ADDR, "OP" => ZEND_VM_EXT_OP, "VAR_FETCH" => ZEND_VM_EXT_VAR_FETCH, "ARRAY_INIT" => ZEND_VM_EXT_ARRAY_INIT, "TYPE" => ZEND_VM_EXT_TYPE, "EVAL" => ZEND_VM_EXT_EVAL, "TYPE_MASK" => ZEND_VM_EXT_TYPE_MASK, "ISSET" => ZEND_VM_EXT_ISSET, "REF" => ZEND_VM_EXT_REF, "FETCH_REF" => ZEND_VM_EXT_FETCH_REF, "SRC" => ZEND_VM_EXT_SRC, "CACHE_SLOT" => ZEND_VM_EXT_CACHE_SLOT, "DIM_WRITE" => ZEND_VM_EXT_DIM_WRITE, ); $vm_kind_name = array( ZEND_VM_KIND_CALL => "ZEND_VM_KIND_CALL", ZEND_VM_KIND_SWITCH => "ZEND_VM_KIND_SWITCH", ZEND_VM_KIND_GOTO => "ZEND_VM_KIND_GOTO", ZEND_VM_KIND_HYBRID => "ZEND_VM_KIND_HYBRID", ); $op_types = array( "ANY", "CONST", "TMP", "VAR", "UNUSED", "CV" ); $op_types_ex = array( "ANY", "CONST", "TMPVARCV", "TMPVAR", "TMP", "VAR", "UNUSED", "CV", ); $prefix = array( "ANY" => "", "TMP" => "_TMP", "VAR" => "_VAR", "CONST" => "_CONST", "UNUSED" => "_UNUSED", "CV" => "_CV", "TMPVAR" => "_TMPVAR", "TMPVARCV" => "_TMPVARCV", ); $commutative_order = array( "ANY" => 0, "TMP" => 1, "VAR" => 2, "CONST" => 0, "UNUSED" => 0, "CV" => 4, "TMPVAR" => 2, "TMPVARCV" => 4, ); $op1_type = array( "ANY" => "opline->op1_type", "TMP" => "IS_TMP_VAR", "VAR" => "IS_VAR", "CONST" => "IS_CONST", "UNUSED" => "IS_UNUSED", "CV" => "IS_CV", "TMPVAR" => "(IS_TMP_VAR|IS_VAR)", "TMPVARCV" => "(IS_TMP_VAR|IS_VAR|IS_CV)", ); $op2_type = array( "ANY" => "opline->op2_type", "TMP" => "IS_TMP_VAR", "VAR" => "IS_VAR", "CONST" => "IS_CONST", "UNUSED" => "IS_UNUSED", "CV" => "IS_CV", "TMPVAR" => "(IS_TMP_VAR|IS_VAR)", "TMPVARCV" => "(IS_TMP_VAR|IS_VAR|IS_CV)", ); $op1_get_zval_ptr = array( "ANY" => "get_zval_ptr(opline->op1_type, opline->op1, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op1.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op1)", "UNUSED" => "NULL", "CV" => "_get_zval_ptr_cv_\\1(opline->op1.var EXECUTE_DATA_CC)", "TMPVAR" => "_get_zval_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "TMPVARCV" => "???", ); $op2_get_zval_ptr = array( "ANY" => "get_zval_ptr(opline->op2_type, opline->op2, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op2.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op2)", "UNUSED" => "NULL", "CV" => "_get_zval_ptr_cv_\\1(opline->op2.var EXECUTE_DATA_CC)", "TMPVAR" => "_get_zval_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "TMPVARCV" => "???", ); $op1_get_zval_ptr_ptr = array( "ANY" => "get_zval_ptr_ptr(opline->op1_type, opline->op1, \\1)", "TMP" => "NULL", "VAR" => "_get_zval_ptr_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "CONST" => "NULL", "UNUSED" => "NULL", "CV" => "_get_zval_ptr_cv_\\1(opline->op1.var EXECUTE_DATA_CC)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op2_get_zval_ptr_ptr = array( "ANY" => "get_zval_ptr_ptr(opline->op2_type, opline->op2, \\1)", "TMP" => "NULL", "VAR" => "_get_zval_ptr_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "CONST" => "NULL", "UNUSED" => "NULL", "CV" => "_get_zval_ptr_cv_\\1(opline->op2.var EXECUTE_DATA_CC)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op1_get_zval_ptr_deref = array( "ANY" => "get_zval_ptr_deref(opline->op1_type, opline->op1, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op1.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var_deref(opline->op1.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op1)", "UNUSED" => "NULL", "CV" => "_get_zval_ptr_cv_deref_\\1(opline->op1.var EXECUTE_DATA_CC)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op2_get_zval_ptr_deref = array( "ANY" => "get_zval_ptr_deref(opline->op2_type, opline->op2, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op2.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var_deref(opline->op2.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op2)", "UNUSED" => "NULL", "CV" => "_get_zval_ptr_cv_deref_\\1(opline->op2.var EXECUTE_DATA_CC)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op1_get_zval_ptr_undef = array( "ANY" => "get_zval_ptr_undef(opline->op1_type, opline->op1, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op1.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op1)", "UNUSED" => "NULL", "CV" => "EX_VAR(opline->op1.var)", "TMPVAR" => "_get_zval_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "TMPVARCV" => "EX_VAR(opline->op1.var)", ); $op2_get_zval_ptr_undef = array( "ANY" => "get_zval_ptr_undef(opline->op2_type, opline->op2, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op2.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op2)", "UNUSED" => "NULL", "CV" => "EX_VAR(opline->op2.var)", "TMPVAR" => "_get_zval_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "TMPVARCV" => "EX_VAR(opline->op2.var)", ); $op1_get_zval_ptr_ptr_undef = array( "ANY" => "get_zval_ptr_ptr_undef(opline->op1_type, opline->op1, \\1)", "TMP" => "NULL", "VAR" => "_get_zval_ptr_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "CONST" => "NULL", "UNUSED" => "NULL", "CV" => "EX_VAR(opline->op1.var)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op2_get_zval_ptr_ptr_undef = array( "ANY" => "get_zval_ptr_ptr_undef(opline->op2_type, opline->op2, \\1)", "TMP" => "NULL", "VAR" => "_get_zval_ptr_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "CONST" => "NULL", "UNUSED" => "NULL", "CV" => "EX_VAR(opline->op2.var)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op1_get_obj_zval_ptr = array( "ANY" => "get_obj_zval_ptr(opline->op1_type, opline->op1, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op1.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op1)", "UNUSED" => "&EX(This)", "CV" => "_get_zval_ptr_cv_\\1(opline->op1.var EXECUTE_DATA_CC)", "TMPVAR" => "_get_zval_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "TMPVARCV" => "???", ); $op2_get_obj_zval_ptr = array( "ANY" => "get_obj_zval_ptr(opline->op2_type, opline->op2, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op2.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op2)", "UNUSED" => "&EX(This)", "CV" => "_get_zval_ptr_cv_\\1(opline->op2.var EXECUTE_DATA_CC)", "TMPVAR" => "_get_zval_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "TMPVARCV" => "???", ); $op1_get_obj_zval_ptr_undef = array( "ANY" => "get_obj_zval_ptr_undef(opline->op1_type, opline->op1, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op1.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op1)", "UNUSED" => "&EX(This)", "CV" => "EX_VAR(opline->op1.var)", "TMPVAR" => "_get_zval_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "TMPVARCV" => "EX_VAR(opline->op1.var)", ); $op2_get_obj_zval_ptr_undef = array( "ANY" => "get_obj_zval_ptr_undef(opline->op2_type, opline->op2, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op2.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op2)", "UNUSED" => "&EX(This)", "CV" => "EX_VAR(opline->op2.var)", "TMPVAR" => "_get_zval_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "TMPVARCV" => "EX_VAR(opline->op2.var)", ); $op1_get_obj_zval_ptr_deref = array( "ANY" => "get_obj_zval_ptr(opline->op1_type, opline->op1, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op1.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var_deref(opline->op1.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op1)", "UNUSED" => "&EX(This)", "CV" => "_get_zval_ptr_cv_deref_\\1(opline->op1.var EXECUTE_DATA_CC)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op2_get_obj_zval_ptr_deref = array( "ANY" => "get_obj_zval_ptr(opline->op2_type, opline->op2, \\1)", "TMP" => "_get_zval_ptr_tmp(opline->op2.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var_deref(opline->op2.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT(opline, opline->op2)", "UNUSED" => "&EX(This)", "CV" => "_get_zval_ptr_cv_deref_\\1(opline->op2.var EXECUTE_DATA_CC)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op1_get_obj_zval_ptr_ptr = array( "ANY" => "get_obj_zval_ptr_ptr(opline->op1_type, opline->op1, \\1)", "TMP" => "NULL", "VAR" => "_get_zval_ptr_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "CONST" => "NULL", "UNUSED" => "&EX(This)", "CV" => "_get_zval_ptr_cv_\\1(opline->op1.var EXECUTE_DATA_CC)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op2_get_obj_zval_ptr_ptr = array( "ANY" => "get_obj_zval_ptr_ptr(opline->op2_type, opline->op2, \\1)", "TMP" => "NULL", "VAR" => "_get_zval_ptr_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "CONST" => "NULL", "UNUSED" => "&EX(This)", "CV" => "_get_zval_ptr_cv_\\1(opline->op2.var EXECUTE_DATA_CC)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op1_get_obj_zval_ptr_ptr_undef = array( "ANY" => "get_obj_zval_ptr_ptr(opline->op1_type, opline->op1, \\1)", "TMP" => "NULL", "VAR" => "_get_zval_ptr_ptr_var(opline->op1.var EXECUTE_DATA_CC)", "CONST" => "NULL", "UNUSED" => "&EX(This)", "CV" => "EX_VAR(opline->op1.var)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op2_get_obj_zval_ptr_ptr_undef = array( "ANY" => "get_obj_zval_ptr_ptr(opline->op2_type, opline->op2, \\1)", "TMP" => "NULL", "VAR" => "_get_zval_ptr_ptr_var(opline->op2.var EXECUTE_DATA_CC)", "CONST" => "NULL", "UNUSED" => "&EX(This)", "CV" => "EX_VAR(opline->op2.var)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op1_free_op = array( "ANY" => "FREE_OP(opline->op1_type, opline->op1.var)", "TMP" => "zval_ptr_dtor_nogc(EX_VAR(opline->op1.var))", "VAR" => "zval_ptr_dtor_nogc(EX_VAR(opline->op1.var))", "CONST" => "", "UNUSED" => "", "CV" => "", "TMPVAR" => "zval_ptr_dtor_nogc(EX_VAR(opline->op1.var))", "TMPVARCV" => "???", ); $op2_free_op = array( "ANY" => "FREE_OP(opline->op2_type, opline->op2.var)", "TMP" => "zval_ptr_dtor_nogc(EX_VAR(opline->op2.var))", "VAR" => "zval_ptr_dtor_nogc(EX_VAR(opline->op2.var))", "CONST" => "", "UNUSED" => "", "CV" => "", "TMPVAR" => "zval_ptr_dtor_nogc(EX_VAR(opline->op2.var))", "TMPVARCV" => "???", ); $op1_free_op_if_var = array( "ANY" => "if (opline->op1_type == IS_VAR) {zval_ptr_dtor_nogc(EX_VAR(opline->op1.var));}", "TMP" => "", "VAR" => "zval_ptr_dtor_nogc(EX_VAR(opline->op1.var))", "CONST" => "", "UNUSED" => "", "CV" => "", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op2_free_op_if_var = array( "ANY" => "if (opline->op2_type == IS_VAR) {zval_ptr_dtor_nogc(EX_VAR(opline->op2.var));}", "TMP" => "", "VAR" => "zval_ptr_dtor_nogc(EX_VAR(opline->op2.var))", "CONST" => "", "UNUSED" => "", "CV" => "", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op1_free_op_var_ptr = array( "ANY" => "if (opline->op1_type == IS_VAR) {zval_ptr_dtor_nogc(EX_VAR(opline->op1.var));}", "TMP" => "", "VAR" => "zval_ptr_dtor_nogc(EX_VAR(opline->op1.var))", "CONST" => "", "UNUSED" => "", "CV" => "", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op2_free_op_var_ptr = array( "ANY" => "if (opline->op2_type == IS_VAR) {zval_ptr_dtor_nogc(EX_VAR(opline->op2.var));}", "TMP" => "", "VAR" => "zval_ptr_dtor_nogc(EX_VAR(opline->op2.var))", "CONST" => "", "UNUSED" => "", "CV" => "", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op_data_type = array( "ANY" => "(opline+1)->op1_type", "TMP" => "IS_TMP_VAR", "VAR" => "IS_VAR", "CONST" => "IS_CONST", "UNUSED" => "IS_UNUSED", "CV" => "IS_CV", "TMPVAR" => "(IS_TMP_VAR|IS_VAR)", "TMPVARCV" => "(IS_TMP_VAR|IS_VAR|IS_CV)", ); $op_data_get_zval_ptr = array( "ANY" => "get_op_data_zval_ptr_r((opline+1)->op1_type, (opline+1)->op1)", "TMP" => "_get_zval_ptr_tmp((opline+1)->op1.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var((opline+1)->op1.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT((opline+1), (opline+1)->op1)", "UNUSED" => "NULL", "CV" => "_get_zval_ptr_cv_\\1((opline+1)->op1.var EXECUTE_DATA_CC)", "TMPVAR" => "_get_zval_ptr_var((opline+1)->op1.var EXECUTE_DATA_CC)", "TMPVARCV" => "???", ); $op_data_get_zval_ptr_deref = array( "ANY" => "get_op_data_zval_ptr_deref_r((opline+1)->op1_type, (opline+1)->op1)", "TMP" => "_get_zval_ptr_tmp((opline+1)->op1.var EXECUTE_DATA_CC)", "VAR" => "_get_zval_ptr_var_deref((opline+1)->op1.var EXECUTE_DATA_CC)", "CONST" => "RT_CONSTANT((opline+1), (opline+1)->op1)", "UNUSED" => "NULL", "CV" => "_get_zval_ptr_cv_deref_\\1((opline+1)->op1.var EXECUTE_DATA_CC)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op_data_get_zval_ptr_ptr = array( "ANY" => "get_zval_ptr_ptr((opline+1)->op1_type, (opline+1)->op1, \\1)", "TMP" => "NULL", "VAR" => "_get_zval_ptr_ptr_var((opline+1)->op1.var EXECUTE_DATA_CC)", "CONST" => "NULL", "UNUSED" => "NULL", "CV" => "_get_zval_ptr_cv_\\1((opline+1)->op1.var EXECUTE_DATA_CC)", "TMPVAR" => "???", "TMPVARCV" => "???", ); $op_data_free_op = array( "ANY" => "FREE_OP((opline+1)->op1_type, (opline+1)->op1.var)", "TMP" => "zval_ptr_dtor_nogc(EX_VAR((opline+1)->op1.var))", "VAR" => "zval_ptr_dtor_nogc(EX_VAR((opline+1)->op1.var))", "CONST" => "", "UNUSED" => "", "CV" => "", "TMPVAR" => "zval_ptr_dtor_nogc(EX_VAR((opline+1)->op1.var))", "TMPVARCV" => "???", ); $op_data_free_op_var_ptr = array( "ANY" => "if ((opline+1)->op1_type == IS_VAR) {zval_ptr_dtor_nogc(EX_VAR((opline+1)->op1.var));}", "TMP" => "", "VAR" => "zval_ptr_dtor_nogc(EX_VAR((opline+1)->op1.var));", "CONST" => "", "UNUSED" => "", "CV" => "", "TMPVAR" => "???", "TMPVARCV" => "???", ); $list = array(); // list of opcode handlers and helpers in original order $opcodes = array(); // opcode handlers by code $helpers = array(); // opcode helpers by name $params = array(); // parameters of helpers $opnames = array(); // opcode name to code mapping $line_no = 1; $used_extra_spec = array(); // Writes $s into resulting executor function out($f, $s) { global $line_no; fputs($f,$s); $line_no += substr_count($s, "\n"); } // Resets #line directives in resulting executor function out_line($f) { global $line_no, $executor_file; fputs($f,"#line ".($line_no+1)." \"".$executor_file."\"\n"); ++$line_no; } function is_hot_helper($name) { global $helpers; if (isset($helpers[$name]["hot"])) { return $helpers[$name]["hot"]; } else { return false; } } // Returns name of specialized helper function helper_name($name, $spec, $op1, $op2, $extra_spec) { global $prefix, $helpers; $extra = ""; if (isset($helpers[$name])) { // If we have no helper with specified specialized operands then // using unspecialized helper if (!isset($helpers[$name]["op1"][$op1])) { if (($op1 == 'TMP' || $op1 == 'VAR') && isset($helpers[$name]["op1"]["TMPVAR"])) { $op1 = "TMPVAR"; } else if (($op1 == 'TMP' || $op1 == 'VAR') && isset($helpers[$name]["op1"]["TMPVARCV"])) { $op1 = "TMPVARCV"; } else if ($op1 == 'CV' && isset($helpers[$name]["op1"]["TMPVARCV"])) { $op1 = "TMPVARCV"; } else if (isset($helpers[$name]["op1"]["ANY"])) { $op1 = "ANY"; } } if (!isset($helpers[$name]["op2"][$op2])) { if (($op2 == 'TMP' || $op2 == 'VAR') && isset($helpers[$name]["op2"]["TMPVAR"])) { $op2 = "TMPVAR"; } else if (($op2 == 'TMP' || $op2 == 'VAR') && isset($helpers[$name]["op2"]["TMPVARCV"])) { $op2 = "TMPVARCV"; } else if ($op2 == 'CV' && isset($helpers[$name]["op2"]["TMPVARCV"])) { $op2 = "TMPVARCV"; } else if (isset($helpers[$name]["op2"]["ANY"])) { $op2 = "ANY"; } } /* forward common specs (e.g. in ZEND_VM_DISPATCH_TO_HELPER) */ if (isset($extra_spec, $helpers[$name]["spec"])) { $extra = extra_spec_name(array_intersect_key($extra_spec, $helpers[$name]["spec"])); } } return $name.($spec?"_SPEC":"").$prefix[$op1].$prefix[$op2].$extra; } function opcode_name($name, $spec, $op1, $op2, $extra_spec) { global $prefix, $opnames, $opcodes; $extra = ""; if (isset($opnames[$name])) { $opcode = $opcodes[$opnames[$name]]; // If we have no helper with specified specialized operands then // using unspecialized helper if (!isset($opcode["op1"][$op1])) { if (($op1 == 'TMP' || $op1 == 'VAR') && isset($opcode["op1"]["TMPVAR"])) { $op1 = "TMPVAR"; } else if (($op1 == 'TMP' || $op1 == 'VAR') && isset($opcode["op1"]["TMPVARCV"])) { $op1 = "TMPVARCV"; } else if ($op1 == 'CV' && isset($opcode["op1"]["TMPVARCV"])) { $op1 = "TMPVARCV"; } else if (isset($opcode["op1"]["ANY"])) { $op1 = "ANY"; } else if ($spec) { /* dispatch to invalid handler from unreachable code */ return "ZEND_NULL"; } } if (!isset($opcode["op2"][$op2])) { if (($op2 == 'TMP' || $op2 == 'VAR') && isset($opcode["op2"]["TMPVAR"])) { $op2 = "TMPVAR"; } else if (($op2 == 'TMP' || $op2 == 'VAR') && isset($opcode["op2"]["TMPVARCV"])) { $op2 = "TMPVARCV"; } else if ($op2 == 'CV' && isset($opcode["op2"]["TMPVARCV"])) { $op2 = "TMPVARCV"; } else if (isset($opcode["op2"]["ANY"])) { $op2 = "ANY"; } else if ($spec) { /* dispatch to unknown handler in unreachable code */ return "ZEND_NULL"; } } /* forward common specs (e.g. in ZEND_VM_DISPATCH_TO_HANDLER) */ if (isset($extra_spec, $opcode["spec"])) { $extra = extra_spec_name(array_intersect_key($extra_spec, $opcode["spec"])); } } return $name.($spec?"_SPEC":"").$prefix[$op1].$prefix[$op2].$extra; } // Formats condition, protecting it by parentheses when needed. function format_condition($condition) { if ($condition === "") { throw new InvalidArgumentException("A non empty string condition was expected."); } if ($condition[0] === "(" && substr($condition, -1) === ")") { return $condition; } return "(".$condition.")"; } // Generates code for opcode handler or helper function gen_code($f, $spec, $kind, $code, $op1, $op2, $name, $extra_spec=null) { global $op1_type, $op2_type, $op1_get_zval_ptr, $op2_get_zval_ptr, $op1_get_zval_ptr_deref, $op2_get_zval_ptr_deref, $op1_get_zval_ptr_undef, $op2_get_zval_ptr_undef, $op1_get_zval_ptr_ptr, $op2_get_zval_ptr_ptr, $op1_get_zval_ptr_ptr_undef, $op2_get_zval_ptr_ptr_undef, $op1_get_obj_zval_ptr, $op2_get_obj_zval_ptr, $op1_get_obj_zval_ptr_undef, $op2_get_obj_zval_ptr_undef, $op1_get_obj_zval_ptr_deref, $op2_get_obj_zval_ptr_deref, $op1_get_obj_zval_ptr_ptr, $op2_get_obj_zval_ptr_ptr, $op1_get_obj_zval_ptr_ptr_undef, $op2_get_obj_zval_ptr_ptr_undef, $op1_free_unfetched, $op2_free_unfetched, $op1_free_op, $op2_free_op, $op1_free_op_if_var, $op2_free_op_if_var, $op1_free_op_var_ptr, $op2_free_op_var_ptr, $prefix, $op_data_type, $op_data_get_zval_ptr, $op_data_get_zval_ptr_deref, $op_data_get_zval_ptr_ptr, $op_data_free_op, $op_data_free_op_var_ptr, $op_data_free_unfetched; // Specializing $specialized_replacements = array( "/OP1_TYPE/" => $op1_type[$op1], "/OP2_TYPE/" => $op2_type[$op2], "/GET_OP1_ZVAL_PTR\(([^)]*)\)/" => $op1_get_zval_ptr[$op1], "/GET_OP2_ZVAL_PTR\(([^)]*)\)/" => $op2_get_zval_ptr[$op2], "/GET_OP1_ZVAL_PTR_DEREF\(([^)]*)\)/" => $op1_get_zval_ptr_deref[$op1], "/GET_OP2_ZVAL_PTR_DEREF\(([^)]*)\)/" => $op2_get_zval_ptr_deref[$op2], "/GET_OP1_ZVAL_PTR_UNDEF\(([^)]*)\)/" => $op1_get_zval_ptr_undef[$op1], "/GET_OP2_ZVAL_PTR_UNDEF\(([^)]*)\)/" => $op2_get_zval_ptr_undef[$op2], "/GET_OP1_ZVAL_PTR_PTR\(([^)]*)\)/" => $op1_get_zval_ptr_ptr[$op1], "/GET_OP2_ZVAL_PTR_PTR\(([^)]*)\)/" => $op2_get_zval_ptr_ptr[$op2], "/GET_OP1_ZVAL_PTR_PTR_UNDEF\(([^)]*)\)/" => $op1_get_zval_ptr_ptr_undef[$op1], "/GET_OP2_ZVAL_PTR_PTR_UNDEF\(([^)]*)\)/" => $op2_get_zval_ptr_ptr_undef[$op2], "/GET_OP1_OBJ_ZVAL_PTR\(([^)]*)\)/" => $op1_get_obj_zval_ptr[$op1], "/GET_OP2_OBJ_ZVAL_PTR\(([^)]*)\)/" => $op2_get_obj_zval_ptr[$op2], "/GET_OP1_OBJ_ZVAL_PTR_UNDEF\(([^)]*)\)/" => $op1_get_obj_zval_ptr_undef[$op1], "/GET_OP2_OBJ_ZVAL_PTR_UNDEF\(([^)]*)\)/" => $op2_get_obj_zval_ptr_undef[$op2], "/GET_OP1_OBJ_ZVAL_PTR_DEREF\(([^)]*)\)/" => $op1_get_obj_zval_ptr_deref[$op1], "/GET_OP2_OBJ_ZVAL_PTR_DEREF\(([^)]*)\)/" => $op2_get_obj_zval_ptr_deref[$op2], "/GET_OP1_OBJ_ZVAL_PTR_PTR\(([^)]*)\)/" => $op1_get_obj_zval_ptr_ptr[$op1], "/GET_OP2_OBJ_ZVAL_PTR_PTR\(([^)]*)\)/" => $op2_get_obj_zval_ptr_ptr[$op2], "/GET_OP1_OBJ_ZVAL_PTR_PTR_UNDEF\(([^)]*)\)/" => $op1_get_obj_zval_ptr_ptr_undef[$op1], "/GET_OP2_OBJ_ZVAL_PTR_PTR_UNDEF\(([^)]*)\)/" => $op2_get_obj_zval_ptr_ptr_undef[$op2], "/FREE_OP1\(\)/" => $op1_free_op[$op1], "/FREE_OP2\(\)/" => $op2_free_op[$op2], "/FREE_OP1_IF_VAR\(\)/" => $op1_free_op_if_var[$op1], "/FREE_OP2_IF_VAR\(\)/" => $op2_free_op_if_var[$op2], "/FREE_OP1_VAR_PTR\(\)/" => $op1_free_op_var_ptr[$op1], "/FREE_OP2_VAR_PTR\(\)/" => $op2_free_op_var_ptr[$op2], "/\!ZEND_VM_SPEC/m" => ($op1!="ANY"||$op2!="ANY")?"0":"1", "/ZEND_VM_SPEC/m" => ($op1!="ANY"||$op2!="ANY")?"1":"0", "/ZEND_VM_C_LABEL\(\s*([A-Za-z_]*)\s*\)/m" => "\\1".(($spec && $kind != ZEND_VM_KIND_CALL)?("_SPEC".$prefix[$op1].$prefix[$op2].extra_spec_name($extra_spec)):""), "/ZEND_VM_C_GOTO\(\s*([A-Za-z_]*)\s*\)/m" => "goto \\1".(($spec && $kind != ZEND_VM_KIND_CALL)?("_SPEC".$prefix[$op1].$prefix[$op2].extra_spec_name($extra_spec)):""), "/^#(\s*)if\s+1\s*\\|\\|.*[^\\\\]$/m" => "#\\1if 1", "/^#(\s*)if\s+0\s*&&.*[^\\\\]$/m" => "#\\1if 0", "/^#(\s*)elif\s+1\s*\\|\\|.*[^\\\\]$/m" => "#\\1elif 1", "/^#(\s*)elif\s+0\s*&&.*[^\\\\]$/m" => "#\\1elif 0", "/OP_DATA_TYPE/" => $op_data_type[isset($extra_spec['OP_DATA']) ? $extra_spec['OP_DATA'] : "ANY"], "/GET_OP_DATA_ZVAL_PTR\(([^)]*)\)/" => $op_data_get_zval_ptr[isset($extra_spec['OP_DATA']) ? $extra_spec['OP_DATA'] : "ANY"], "/GET_OP_DATA_ZVAL_PTR_DEREF\(([^)]*)\)/" => $op_data_get_zval_ptr_deref[isset($extra_spec['OP_DATA']) ? $extra_spec['OP_DATA'] : "ANY"], "/GET_OP_DATA_ZVAL_PTR_PTR\(([^)]*)\)/" => $op_data_get_zval_ptr_ptr[isset($extra_spec['OP_DATA']) ? $extra_spec['OP_DATA'] : "ANY"], "/FREE_OP_DATA\(\)/" => $op_data_free_op[isset($extra_spec['OP_DATA']) ? $extra_spec['OP_DATA'] : "ANY"], "/FREE_OP_DATA_VAR_PTR\(\)/" => $op_data_free_op_var_ptr[isset($extra_spec['OP_DATA']) ? $extra_spec['OP_DATA'] : "ANY"], "/RETURN_VALUE_USED\(opline\)/" => isset($extra_spec['RETVAL']) ? $extra_spec['RETVAL'] : "RETURN_VALUE_USED(opline)", "/arg_num <= MAX_ARG_FLAG_NUM/" => isset($extra_spec['QUICK_ARG']) ? $extra_spec['QUICK_ARG'] : "arg_num <= MAX_ARG_FLAG_NUM", "/ZEND_VM_SMART_BRANCH\(\s*([^,)]*)\s*,\s*([^)]*)\s*\)/" => isset($extra_spec['SMART_BRANCH']) ? ($extra_spec['SMART_BRANCH'] == 1 ? "ZEND_VM_SMART_BRANCH_JMPZ(\\1, \\2)" : ($extra_spec['SMART_BRANCH'] == 2 ? "ZEND_VM_SMART_BRANCH_JMPNZ(\\1, \\2)" : "ZEND_VM_SMART_BRANCH_NONE(\\1, \\2)")) : "ZEND_VM_SMART_BRANCH(\\1, \\2)", "/ZEND_VM_SMART_BRANCH_TRUE\(\s*\)/" => isset($extra_spec['SMART_BRANCH']) ? ($extra_spec['SMART_BRANCH'] == 1 ? "ZEND_VM_SMART_BRANCH_TRUE_JMPZ()" : ($extra_spec['SMART_BRANCH'] == 2 ? "ZEND_VM_SMART_BRANCH_TRUE_JMPNZ()" : "ZEND_VM_SMART_BRANCH_TRUE_NONE()")) : "ZEND_VM_SMART_BRANCH_TRUE()", "/ZEND_VM_SMART_BRANCH_FALSE\(\s*\)/" => isset($extra_spec['SMART_BRANCH']) ? ($extra_spec['SMART_BRANCH'] == 1 ? "ZEND_VM_SMART_BRANCH_FALSE_JMPZ()" : ($extra_spec['SMART_BRANCH'] == 2 ? "ZEND_VM_SMART_BRANCH_FALSE_JMPNZ()" : "ZEND_VM_SMART_BRANCH_FALSE_NONE()")) : "ZEND_VM_SMART_BRANCH_FALSE()", "/opline->extended_value\s*&\s*ZEND_ISEMPTY/" => isset($extra_spec['ISSET']) ? ($extra_spec['ISSET'] == 0 ? "0" : "1") : "\\0", "/opline->extended_value\s*&\s*~\s*ZEND_ISEMPTY/" => isset($extra_spec['ISSET']) ? ($extra_spec['ISSET'] == 0 ? "\\0" : "opline->extended_value") : "\\0", ); $code = preg_replace(array_keys($specialized_replacements), array_values($specialized_replacements), $code); if (0 && strpos($code, '{') === 0) { $code = "{\n\tfprintf(stderr, \"$name\\n\");\n" . substr($code, 1); } // Updating code according to selected threading model switch($kind) { case ZEND_VM_KIND_HYBRID: $code = preg_replace_callback( array( "/EXECUTE_DATA(?=[^_])/m", "/ZEND_VM_DISPATCH_TO_HANDLER\(\s*([A-Z_]*)\s*\)/m", "/ZEND_VM_DISPATCH_TO_HELPER\(\s*([A-Za-z_]*)\s*(,[^)]*)?\)/m", ), function($matches) use ($spec, $prefix, $op1, $op2, $extra_spec) { if (strncasecmp($matches[0], "EXECUTE_DATA", strlen("EXECUTE_DATA")) == 0) { return "execute_data"; } else if (strncasecmp($matches[0], "ZEND_VM_DISPATCH_TO_HANDLER", strlen("ZEND_VM_DISPATCH_TO_HANDLER")) == 0) { global $opcodes, $opnames; $name = $matches[1]; $opcode = $opcodes[$opnames[$name]]; return "goto " . opcode_name($name, $spec, $op1, $op2, $extra_spec) . "_LABEL"; } else { // ZEND_VM_DISPATCH_TO_HELPER if (is_hot_helper($matches[1])) { if (isset($matches[2])) { // extra args $args = preg_replace("/,\s*([A-Za-z0-9_]*)\s*,\s*([^,)\s]*)\s*/", "$1 = $2; ", $matches[2]); return $args . "goto " . helper_name($matches[1], $spec, $op1, $op2, $extra_spec) . "_LABEL"; } return "goto " . helper_name($matches[1], $spec, $op1, $op2, $extra_spec) . "_LABEL"; } if (isset($matches[2])) { // extra args $args = substr(preg_replace("/,\s*[A-Za-z0-9_]*\s*,\s*([^,)\s]*)\s*/", ", $1", $matches[2]), 2); return "ZEND_VM_TAIL_CALL(" . helper_name($matches[1], $spec, $op1, $op2, $extra_spec) . "(" . $args. " ZEND_OPCODE_HANDLER_ARGS_PASSTHRU_CC))"; } return "ZEND_VM_TAIL_CALL(" . helper_name($matches[1], $spec, $op1, $op2, $extra_spec) . "(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU))"; } }, $code); break; case ZEND_VM_KIND_CALL: $code = preg_replace_callback( array( "/EXECUTE_DATA(?=[^_])/m", "/ZEND_VM_DISPATCH_TO_HANDLER\(\s*([A-Z_]*)\s*\)/m", "/ZEND_VM_DISPATCH_TO_HELPER\(\s*([A-Za-z_]*)\s*(,[^)]*)?\)/m", ), function($matches) use ($spec, $prefix, $op1, $op2, $extra_spec, $name) { if (strncasecmp($matches[0], "EXECUTE_DATA", strlen("EXECUTE_DATA")) == 0) { return "execute_data"; } else if (strncasecmp($matches[0], "ZEND_VM_DISPATCH_TO_HANDLER", strlen("ZEND_VM_DISPATCH_TO_HANDLER")) == 0) { global $opcodes, $opnames; $handler = $matches[1]; $opcode = $opcodes[$opnames[$handler]]; $inline = ZEND_VM_KIND == ZEND_VM_KIND_HYBRID && isset($opcode["use"]) && is_hot_handler($opcode["hot"], $op1, $op2, $extra_spec) && is_hot_handler($opcodes[$opnames[$name]]["hot"], $op1, $op2, $extra_spec) ? "_INLINE" : ""; return "ZEND_VM_TAIL_CALL(" . opcode_name($handler, $spec, $op1, $op2, $extra_spec) . $inline . "_HANDLER(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU))"; } else { // ZEND_VM_DISPATCH_TO_HELPER if (isset($matches[2])) { // extra args $args = substr(preg_replace("/,\s*[A-Za-z0-9_]*\s*,\s*([^,)\s]*)\s*/", ", $1", $matches[2]), 2); return "ZEND_VM_TAIL_CALL(" . helper_name($matches[1], $spec, $op1, $op2, $extra_spec) . "(" . $args. " ZEND_OPCODE_HANDLER_ARGS_PASSTHRU_CC))"; } return "ZEND_VM_TAIL_CALL(" . helper_name($matches[1], $spec, $op1, $op2, $extra_spec) . "(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU))"; } }, $code); break; case ZEND_VM_KIND_SWITCH: $code = preg_replace_callback( array( "/EXECUTE_DATA(?=[^_])/m", "/ZEND_VM_DISPATCH_TO_HANDLER\(\s*([A-Z_]*)\s*\)/m", "/ZEND_VM_DISPATCH_TO_HELPER\(\s*([A-Za-z_]*)\s*(,[^)]*)?\)/m", ), function($matches) use ($spec, $prefix, $op1, $op2, $extra_spec) { if (strncasecmp($matches[0], "EXECUTE_DATA", strlen("EXECUTE_DATA")) == 0) { return "execute_data"; } else if (strncasecmp($matches[0], "ZEND_VM_DISPATCH_TO_HANDLER", strlen("ZEND_VM_DISPATCH_TO_HANDLER")) == 0) { return "goto " . opcode_name($matches[1], $spec, $op1, $op2, $extra_spec) . "_LABEL"; } else { // ZEND_VM_DISPATCH_TO_HELPER if (isset($matches[2])) { // extra args $args = preg_replace("/,\s*([A-Za-z0-9_]*)\s*,\s*([^,)\s]*)\s*/", "$1 = $2; ", $matches[2]); return $args . "goto " . helper_name($matches[1], $spec, $op1, $op2, $extra_spec); } return "goto " . helper_name($matches[1], $spec, $op1, $op2, $extra_spec); } }, $code); break; case ZEND_VM_KIND_GOTO: $code = preg_replace_callback( array( "/EXECUTE_DATA(?=[^_])/m", "/ZEND_VM_DISPATCH_TO_HANDLER\(\s*([A-Z_]*)\s*\)/m", "/ZEND_VM_DISPATCH_TO_HELPER\(\s*([A-Za-z_]*)\s*(,[^)]*)?\)/m", ), function($matches) use ($spec, $prefix, $op1, $op2, $extra_spec) { if (strncasecmp($matches[0], "EXECUTE_DATA", strlen("EXECUTE_DATA")) == 0) { return "execute_data"; } else if (strncasecmp($matches[0], "ZEND_VM_DISPATCH_TO_HANDLER", strlen("ZEND_VM_DISPATCH_TO_HANDLER")) == 0) { return "goto " . opcode_name($matches[1], $spec, $op1, $op2, $extra_spec) . "_LABEL"; } else { // ZEND_VM_DISPATCH_TO_HELPER if (isset($matches[2])) { // extra args $args = preg_replace("/,\s*([A-Za-z0-9_]*)\s*,\s*([^,)\s]*)\s*/", "$1 = $2; ", $matches[2]); return $args . "goto " . helper_name($matches[1], $spec, $op1, $op2, $extra_spec); } return "goto " . helper_name($matches[1], $spec, $op1, $op2, $extra_spec); } }, $code); break; } /* Remove unnecessary ';' */ $code = preg_replace('/^\s*;\s*$/m', '', $code); /* Remove WS */ $code = preg_replace('/[ \t]+\n/m', "\n", $code); out($f, $code); } function skip_extra_spec_function($op1, $op2, $extra_spec) { global $commutative_order; if (isset($extra_spec["NO_CONST_CONST"]) && $op1 == "CONST" && $op2 == "CONST") { // Skip useless constant handlers return true; } if (isset($extra_spec["COMMUTATIVE"]) && $commutative_order[$op1] < $commutative_order[$op2]) { // Skip duplicate commutative handlers return true; } return false; } function is_hot_handler($hot, $op1, $op2, $extra_spec) { if (isset($extra_spec["SMART_BRANCH"]) && $extra_spec["SMART_BRANCH"] == 0) { return false; } if ($hot === 'HOT_' || $hot === 'INLINE_') { return true; } else if ($hot === 'HOT_NOCONST_') { return ($op1 !== 'CONST'); } else if ($hot === 'HOT_NOCONSTCONST_') { return (($op1 !== 'CONST') || ($op2 !== 'CONST')) ; } else if ($hot === 'HOT_OBJ_') { return (($op1 === 'UNUSED') || ($op1 === 'CV')) && ($op2 === 'CONST'); } else if ($hot === 'HOT_SEND_') { return !empty($extra_spec["QUICK_ARG"]); } else { return false; } } function is_cold_handler($hot, $op1, $op2, $extra_spec) { if ($hot === 'COLD_') { return true; } else if ($hot === 'COLD_CONST_') { return ($op1 === 'CONST'); } else if ($hot === 'COLD_CONSTCONST_') { return ($op1 === 'CONST' && $op2 === 'CONST'); } else if ($hot === 'HOT_OBJ_') { return ($op1 === 'CONST'); } else if ($hot === 'HOT_NOCONST_') { return ($op1 === 'CONST'); } else if ($hot === 'HOT_NOCONSTCONST_') { return ($op1 === 'CONST' && $op2 === 'CONST'); } else { return false; } } function is_inline_hybrid_handler($name, $hot, $op1, $op2, $extra_spec) { return ($hot === 'INLINE_'); } // Generates opcode handler function gen_handler($f, $spec, $kind, $name, $op1, $op2, $use, $code, $lineno, $opcode, $extra_spec = null, &$switch_labels = array()) { global $definition_file, $prefix, $opnames, $gen_order; if (isset($opcode['alias']) && ($spec || $kind != ZEND_VM_KIND_SWITCH)) { return; } if ($spec && skip_extra_spec_function($op1, $op2, $extra_spec)) { return; } /* Skip SMART_BRANCH specialization for "cold" CONST_CONST instructions */ if (isset($extra_spec["SMART_BRANCH"])) { if ($opcode["hot"] === 'HOT_NOCONSTCONST_' || $opcode["hot"] === 'COLD_CONSTCONST_') { if (($op1 === 'CONST') && ($op2 === 'CONST')) { if ($extra_spec["SMART_BRANCH"] == 0) { unset($extra_spec["SMART_BRANCH"]); } else { return; } } } } /* Skip QUICK_ARG specialization for named parameters */ if (isset($extra_spec["QUICK_ARG"])) { if ($op2 === "CONST") { if ($extra_spec["QUICK_ARG"] == 0) { unset($extra_spec["QUICK_ARG"]); } else { return; } } } if (ZEND_VM_LINES) { out($f, "#line $lineno \"$definition_file\"\n"); } // Generate opcode handler's entry point according to selected threading model $additional_func = false; $spec_name = $name.($spec?"_SPEC":"").$prefix[$op1].$prefix[$op2].($spec?extra_spec_name($extra_spec):""); switch($kind) { case ZEND_VM_KIND_HYBRID: if (is_inline_hybrid_handler($name, $opcode["hot"], $op1, $op2, $extra_spec)) { $out = fopen('php://memory', 'w+'); gen_code($out, $spec, $kind, $code, $op1, $op2, $name, $extra_spec); rewind($out); $code = "\t\t\tHYBRID_CASE({$spec_name}):\n" . "\t\t\t\tVM_TRACE($spec_name)\n" . stream_get_contents($out); fclose($out); } else { $inline = isset($opcode["use"]) && is_hot_handler($opcode["hot"], $op1, $op2, $extra_spec) ? "_INLINE" : ""; $code = "\t\t\tHYBRID_CASE({$spec_name}):\n" . "\t\t\t\tVM_TRACE($spec_name)\n" . "\t\t\t\t{$spec_name}{$inline}_HANDLER(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU);\n" . "\t\t\t\tHYBRID_BREAK();\n"; } if (is_array($gen_order)) { $gen_order[$spec_name] = $code; } else { out($f, $code); } return; case ZEND_VM_KIND_CALL: if ($opcode["hot"] && ZEND_VM_KIND == ZEND_VM_KIND_HYBRID && is_hot_handler($opcode["hot"], $op1, $op2, $extra_spec)) { if (isset($opcode["use"])) { out($f,"static zend_always_inline ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL {$spec_name}_INLINE_HANDLER(ZEND_OPCODE_HANDLER_ARGS)\n"); $additional_func = true; } else { out($f,"static ZEND_VM_HOT ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL {$spec_name}_HANDLER(ZEND_OPCODE_HANDLER_ARGS)\n"); } } else if ($opcode["hot"] && is_cold_handler($opcode["hot"], $op1, $op2, $extra_spec)) { out($f,"static ZEND_VM_COLD ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL {$spec_name}_HANDLER(ZEND_OPCODE_HANDLER_ARGS)\n"); } else { out($f,"static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL {$spec_name}_HANDLER(ZEND_OPCODE_HANDLER_ARGS)\n"); } break; case ZEND_VM_KIND_SWITCH: if ($spec) { $cur = $switch_labels ? end($switch_labels) + 1 : 0; out($f,"case $cur: /* $spec_name */"); $switch_labels[$spec_name] = $cur; } else { out($f,"case ".$name.":"); } if ($use) { // This handler is used by other handlers. We will add label to call it. out($f," {$spec_name}_LABEL:\n"); } else { out($f,"\n"); } break; case ZEND_VM_KIND_GOTO: out($f,"{$spec_name}_LABEL: ZEND_VM_GUARD($spec_name);\n"); break; } // Generate opcode handler's code gen_code($f, $spec, $kind, $code, $op1, $op2, $name, $extra_spec); if ($additional_func) { out($f,"static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL {$spec_name}_HANDLER(ZEND_OPCODE_HANDLER_ARGS)\n"); out($f,"{\n"); out($f,"\tZEND_VM_TAIL_CALL({$spec_name}_INLINE_HANDLER(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU));\n"); out($f,"}\n"); out($f,"\n"); } } // Generates helper function gen_helper($f, $spec, $kind, $name, $op1, $op2, $param, $code, $lineno, $inline, $cold = false, $hot = false, $extra_spec = null) { global $definition_file, $prefix; if ($kind == ZEND_VM_KIND_HYBRID && !$hot) { return; } if ($spec && skip_extra_spec_function($op1, $op2, $extra_spec)) { return; } if (ZEND_VM_LINES) { out($f, "#line $lineno \"$definition_file\"\n"); } $spec_name = $name.($spec?"_SPEC":"").$prefix[$op1].$prefix[$op2].($spec?extra_spec_name($extra_spec):""); // Generate helper's entry point according to selected threading model switch($kind) { case ZEND_VM_KIND_HYBRID: out($f, $spec_name . "_LABEL:\n"); break; case ZEND_VM_KIND_CALL: if ($inline) { $zend_attributes = " zend_always_inline"; $zend_fastcall = ""; } else { if ($cold) { $zend_attributes = " zend_never_inline ZEND_COLD"; } else { $zend_attributes = " zend_never_inline"; } $zend_fastcall = " ZEND_FASTCALL"; } if ($param == null) { // Helper without parameters out($f, "static$zend_attributes ZEND_OPCODE_HANDLER_RET$zend_fastcall $spec_name(ZEND_OPCODE_HANDLER_ARGS)\n"); } else { // Helper with parameter out($f, "static$zend_attributes ZEND_OPCODE_HANDLER_RET$zend_fastcall $spec_name($param ZEND_OPCODE_HANDLER_ARGS_DC)\n"); } break; case ZEND_VM_KIND_SWITCH: out($f, "$spec_name:\n"); break; case ZEND_VM_KIND_GOTO: out($f, "$spec_name:\n"); break; } // Generate helper's code gen_code($f, $spec, $kind, $code, $op1, $op2, $name, $extra_spec); } function gen_null_label($f, $kind, $prolog) { switch ($kind) { case ZEND_VM_KIND_CALL: out($f,$prolog."ZEND_NULL_HANDLER,\n"); break; case ZEND_VM_KIND_SWITCH: out($f,$prolog."(void*)(uintptr_t)-1,\n"); break; case ZEND_VM_KIND_GOTO: out($f,$prolog."(void*)&&ZEND_NULL_LABEL,\n"); break; } } // Generates array of opcode handlers (specialized or unspecialized) function gen_labels($f, $spec, $kind, $prolog, &$specs, $switch_labels = array()) { global $opcodes, $opnames, $op_types, $prefix, $op_types_ex; $list = []; $next = 0; $label = 0; if ($spec) { // Emit labels for specialized executor // For each opcode in opcode number order foreach($opcodes as $num => $dsc) { if (isset($dsc['alias'])) { $specs[$num] = $specs[$opnames[$dsc['alias']]]; continue; } $specs[$num] = "$label"; $spec_op1 = $spec_op2 = $spec_extra = false; $def_op1_type = $def_op2_type = "ANY"; $next = $num + 1; if (isset($dsc["op1"]) && !isset($dsc["op1"]["ANY"])) { $count = 0; foreach ($op_types_ex as $t) { if (isset($dsc["op1"][$t])) { $def_op1_type = $t; $count++; } } if ($count > 1) { $spec_op1 = true; $specs[$num] .= " | SPEC_RULE_OP1"; $def_op1_type = "ANY"; } } if (isset($dsc["op2"]) && !isset($dsc["op2"]["ANY"])) { $count = 0; foreach ($op_types_ex as $t) { if (isset($dsc["op2"][$t])) { $def_op2_type = $t; $count++; } } if ($count > 1) { $spec_op2 = true; $specs[$num] .= " | SPEC_RULE_OP2"; $def_op2_type = "ANY"; } } $spec_extra = call_user_func_array("array_merge", extra_spec_handler($dsc) ?: array(array())); $flags = extra_spec_flags($spec_extra); if ($flags) { $specs[$num] .= " | " . implode(" | ", $flags); } if ($num >= 256) { $opcodes[$num]['spec_code'] = $specs[$num]; unset($specs[$num]); } $foreach_op1 = function($do) use ($dsc, $op_types) { return function($_, $op2) use ($do, $dsc, $op_types) { // For each op1.op_type except ANY foreach($op_types as $op1) { if ($op1 != "ANY") { if (!isset($dsc["op1"][$op1])) { if ($op1 == "TMP" || $op1 == "VAR") { if (isset($dsc["op1"]["TMPVAR"])) { $op1 = "TMPVAR"; } else if (isset($dsc["op1"]["TMPVARCV"])) { $op1 = "TMPVARCV"; } else { $op1 = "ANY"; } } else if ($op1 == "CV" && isset($dsc["op1"]["TMPVARCV"])) { $op1 = "TMPVARCV"; } else { // Try to use unspecialized handler $op1 = "ANY"; } } $do($op1, $op2); } } }; }; $foreach_op2 = function($do) use ($dsc, $op_types) { return function($op1, $_) use ($do, $dsc, $op_types) { // For each op2.op_type except ANY foreach($op_types as $op2) { if ($op2 != "ANY") { if (!isset($dsc["op2"][$op2])) { if ($op2 == "TMP" || $op2 == "VAR") { if (isset($dsc["op2"]["TMPVAR"])) { $op2 = "TMPVAR"; } else if (isset($dsc["op2"]["TMPVARCV"])) { $op2 = "TMPVARCV"; } else { $op2 = "ANY"; } } else if ($op2 == "CV" && isset($dsc["op2"]["TMPVARCV"])) { $op2 = "TMPVARCV"; } else { // Try to use unspecialized handler $op2 = "ANY"; } } $do($op1, $op2); } } }; }; $foreach_op_data = function($do) use ($dsc, $op_types) { return function($op1, $op2, $extra_spec = array()) use ($do, $dsc, $op_types) { // For each op_data.op_type except ANY foreach($op_types as $op_data) { if ($op_data != "ANY") { if (!isset($dsc["spec"]["OP_DATA"][$op_data])) { if ($op_data == "TMP" || $op_data == "VAR") { if (isset($dsc["spec"]["OP_DATA"]["TMPVAR"])) { $op_data = "TMPVAR"; } else if (isset($dsc["spec"]["OP_DATA"]["TMPVARCV"])) { $op_data = "TMPVARCV"; } else { // Try to use unspecialized handler $op_data = "ANY"; } } else if ($op_data == "CV" && isset($dsc["OP_DATA"]["TMPVARCV"])) { $op_data = "TMPVARCV"; } else { // Try to use unspecialized handler $op_data = "ANY"; } } $do($op1, $op2, array("OP_DATA" => $op_data) + $extra_spec); } } }; }; $foreach_extra_spec = function($do, $spec) use ($dsc) { return function($op1, $op2, $extra_spec = array()) use ($do, $spec, $dsc) { foreach ($dsc["spec"][$spec] as $val) { $do($op1, $op2, array($spec => $val) + $extra_spec); } }; }; $generate = function ($op1, $op2, $extra_spec = array()) use ($f, $kind, $dsc, $prefix, $prolog, $num, $switch_labels, &$label, &$list) { global $commutative_order; // Check if specialized handler is defined /* TODO: figure out better way to signal "specialized and not defined" than an extra lookup */ if (isset($dsc["op1"][$op1]) && isset($dsc["op2"][$op2]) && (!isset($extra_spec["OP_DATA"]) || isset($dsc["spec"]["OP_DATA"][$extra_spec["OP_DATA"]]))) { if (skip_extra_spec_function($op1, $op2, $extra_spec)) { gen_null_label($f, $kind, $prolog); $list[$label] = null; $label++; return; } /* Skip SMART_BRANCH specialization for "cold" CONST_CONST instructions */ if (isset($extra_spec["SMART_BRANCH"])) { if ($dsc["hot"] === 'HOT_NOCONSTCONST_' || $dsc["hot"] === 'COLD_CONSTCONST_') { if (($op1 === 'CONST') && ($op2 === 'CONST')) { unset($extra_spec["SMART_BRANCH"]); } } } /* Skip QUICK_ARG specialization for named parameters */ if (isset($extra_spec["QUICK_ARG"])) { if ($op2 === "CONST") { unset($extra_spec["QUICK_ARG"]); } } // Emit pointer to specialized handler $spec_name = $dsc["op"]."_SPEC".$prefix[$op1].$prefix[$op2].extra_spec_name($extra_spec); switch ($kind) { case ZEND_VM_KIND_CALL: out($f,"$prolog{$spec_name}_HANDLER,\n"); break; case ZEND_VM_KIND_SWITCH: out($f,$prolog."(void*)(uintptr_t)$switch_labels[$spec_name],\n"); break; case ZEND_VM_KIND_GOTO: out($f,$prolog."(void*)&&{$spec_name}_LABEL,\n"); break; } $list[$label] = $spec_name; $label++; } else { // Emit pointer to handler of undefined opcode gen_null_label($f, $kind, $prolog); $list[$label] = null; $label++; } }; $do = $generate; if ($spec_extra) { foreach ($spec_extra as $extra => $devnull) { if ($extra == "OP_DATA") { $do = $foreach_op_data($do); } else { $do = $foreach_extra_spec($do, $extra); } } } if ($spec_op2) { $do = $foreach_op2($do); } if ($spec_op1) { $do = $foreach_op1($do); } $do($def_op1_type, $def_op2_type); } } else { // Emit labels for unspecialized executor // For each opcode in opcode number order foreach($opcodes as $num => $dsc) { while ($next != $num) { // If some opcode numbers are not used then fill hole with pointers // to handler of undefined opcode switch ($kind) { case ZEND_VM_KIND_CALL: out($f,$prolog."ZEND_NULL_HANDLER,\n"); break; case ZEND_VM_KIND_SWITCH: out($f,$prolog."(void*)(uintptr_t)-1,\n"); break; case ZEND_VM_KIND_GOTO: out($f,$prolog."(void*)&&ZEND_NULL_LABEL,\n"); break; } $next++; } if ($num >= 256) { continue; } $next = $num+1; if (isset($dsc['alias']) && $kind != ZEND_VM_KIND_SWITCH) { // Emit pointer to unspecialized handler switch ($kind) { case ZEND_VM_KIND_CALL: out($f,$prolog.$dsc['alias']."_HANDLER,\n"); break; case ZEND_VM_KIND_GOTO: out($f,$prolog."(void*)&&".$dsc['alias']."_LABEL,\n"); break; } $list[] = $dsc["op"]; } else if ($dsc["code"]) { //ugly trick for ZEND_VM_DEFINE_OP // Emit pointer to unspecialized handler switch ($kind) { case ZEND_VM_KIND_CALL: out($f,$prolog.$dsc["op"]."_HANDLER,\n"); break; case ZEND_VM_KIND_SWITCH: out($f,$prolog."(void*)(uintptr_t)".((string)$num).",\n"); break; case ZEND_VM_KIND_GOTO: out($f,$prolog."(void*)&&".$dsc["op"]."_LABEL,\n"); break; } $list[] = $dsc["op"]; } else { switch ($kind) { case ZEND_VM_KIND_CALL: out($f,$prolog."ZEND_NULL_HANDLER,\n"); break; case ZEND_VM_KIND_SWITCH: out($f,$prolog."(void*)(uintptr_t)-1,\n"); break; case ZEND_VM_KIND_GOTO: out($f,$prolog."(void*)&&ZEND_NULL_LABEL,\n"); break; } $list[] = null; } } } // Emit last handler's label (undefined opcode) switch ($kind) { case ZEND_VM_KIND_CALL: out($f,$prolog."ZEND_NULL_HANDLER\n"); break; case ZEND_VM_KIND_SWITCH: out($f,$prolog."(void*)(uintptr_t)-1\n"); break; case ZEND_VM_KIND_GOTO: out($f,$prolog."(void*)&&ZEND_NULL_LABEL\n"); break; } $specs[$num + 1] = "$label"; $l = fopen(__DIR__ . "/zend_vm_handlers.h", "w+") or die("ERROR: Cannot create zend_vm_handlers.h\n"); out($l, "#define VM_HANDLERS(_) \\\n"); foreach ($list as $n => $name) { if (!is_null($name)) { out($l, "\t_($n, $name) \\\n"); } } out($l, "\t_($n+1, ZEND_NULL)\n"); fclose($l); } // Generates specialized offsets function gen_specs($f, $prolog, $specs) { $lastdef = array_pop($specs); $last = 0; foreach ($specs as $num => $def) { while (++$last < $num) { out($f, "$prolog$lastdef,\n"); } $last = $num; out($f, "$prolog$def,\n"); } out($f, "$prolog$lastdef\n"); } // Generates handler for undefined opcodes (CALL threading model) function gen_null_handler($f) { static $done = 0; // New and all executors with CALL threading model can use the same handler // for undefined opcodes, do we emit code for it only once if (!$done) { $done = 1; out($f,"static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_NULL_HANDLER(ZEND_OPCODE_HANDLER_ARGS)\n"); out($f,"{\n"); out($f,"\tUSE_OPLINE\n"); out($f,"\n"); out($f,"\tzend_error_noreturn(E_ERROR, \"Invalid opcode %d/%d/%d.\", OPLINE->opcode, OPLINE->op1_type, OPLINE->op2_type);\n"); out($f,"\tZEND_VM_NEXT_OPCODE(); /* Never reached */\n"); out($f,"}\n\n"); } } function extra_spec_name($extra_spec) { global $prefix; $s = ""; if (isset($extra_spec["OP_DATA"])) { $s .= "_OP_DATA" . $prefix[$extra_spec["OP_DATA"]]; } if (isset($extra_spec["RETVAL"])) { $s .= "_RETVAL_".($extra_spec["RETVAL"] ? "USED" : "UNUSED"); } if (isset($extra_spec["QUICK_ARG"])) { if ($extra_spec["QUICK_ARG"]) { $s .= "_QUICK"; } } if (isset($extra_spec["SMART_BRANCH"])) { if ($extra_spec["SMART_BRANCH"] == 1) { $s .= "_JMPZ"; } else if ($extra_spec["SMART_BRANCH"] == 2) { $s .= "_JMPNZ"; } } if (isset($extra_spec["ISSET"])) { if ($extra_spec["ISSET"] == 0) { $s .= "_SET"; } else { $s .= "_EMPTY"; } } return $s; } function extra_spec_flags($extra_spec) { $s = array(); if (isset($extra_spec["OP_DATA"])) { $s[] = "SPEC_RULE_OP_DATA"; } if (isset($extra_spec["RETVAL"])) { $s[] = "SPEC_RULE_RETVAL"; } if (isset($extra_spec["QUICK_ARG"])) { $s[] = "SPEC_RULE_QUICK_ARG"; } if (isset($extra_spec["SMART_BRANCH"])) { $s[] = "SPEC_RULE_SMART_BRANCH"; } if (isset($extra_spec["COMMUTATIVE"])) { $s[] = "SPEC_RULE_COMMUTATIVE"; } if (isset($extra_spec["ISSET"])) { $s[] = "SPEC_RULE_ISSET"; } return $s; } function extra_spec_handler($dsc) { global $op_types_ex; if (!isset($dsc["spec"])) { return array(array()); } $specs = $dsc["spec"]; if (isset($specs["OP_DATA"])) { $op_data_specs = $specs["OP_DATA"]; $specs["OP_DATA"] = array(); foreach($op_types_ex as $op_data) { if (isset($dsc["spec"]["OP_DATA"][$op_data])) { $specs["OP_DATA"][] = $op_data; } } } $f = function($specs) use (&$f) { $spec = key($specs); $top = array_shift($specs); if ($specs) { $next = $f($specs); } else { $next = array(array()); } $ret = array(); foreach ($next as $existing) { foreach ($top as $mode) { $ret[] = array($spec => $mode) + $existing; } } return $ret; }; return $f($specs); } function read_order_file($fn) { $f = fopen($fn, "r"); if (!is_resource($f)) { return false; } $order = []; while (!feof($f)) { $op = trim(fgets($f)); if ($op !== "") { $order[$op] = null; } } fclose($f); return $order; } // Generates all opcode handlers and helpers (specialized or unspecialized) function gen_executor_code($f, $spec, $kind, $prolog, &$switch_labels = array()) { global $list, $opcodes, $helpers, $op_types_ex, $gen_order; if ($spec) { // Produce specialized executor $op1t = $op_types_ex; // for each op1.op_type foreach($op1t as $op1) { $op2t = $op_types_ex; // for each op2.op_type foreach($op2t as $op2) { // for each handlers in helpers in original order foreach ($list as $lineno => $dsc) { if (isset($dsc["handler"])) { $num = $dsc["handler"]; foreach (extra_spec_handler($opcodes[$num]) as $extra_spec) { // Check if handler accepts such types of operands (op1 and op2) if (isset($opcodes[$num]["op1"][$op1]) && isset($opcodes[$num]["op2"][$op2])) { // Generate handler code gen_handler($f, 1, $kind, $opcodes[$num]["op"], $op1, $op2, isset($opcodes[$num]["use"]), $opcodes[$num]["code"], $lineno, $opcodes[$num], $extra_spec, $switch_labels); } } } else if (isset($dsc["helper"])) { $num = $dsc["helper"]; foreach (extra_spec_handler($helpers[$num]) as $extra_spec) { // Check if handler accepts such types of operands (op1 and op2) if (isset($helpers[$num]["op1"][$op1]) && isset($helpers[$num]["op2"][$op2])) { // Generate helper code gen_helper($f, 1, $kind, $num, $op1, $op2, $helpers[$num]["param"], $helpers[$num]["code"], $lineno, $helpers[$num]["inline"], $helpers[$num]["cold"], $helpers[$num]["hot"], $extra_spec); } } } else { var_dump($dsc); die("??? $kind:$num\n"); } } } } } else { // Produce unspecialized executor // for each handlers in helpers in original order foreach ($list as $lineno => $dsc) { if (isset($dsc["handler"])) { $num = $dsc["handler"]; // Generate handler code if ($num < 256) { gen_handler($f, 0, $kind, $opcodes[$num]["op"], "ANY", "ANY", isset($opcodes[$num]["use"]), $opcodes[$num]["code"], $lineno, $opcodes[$num]); } } else if (isset($dsc["helper"])) { $num = $dsc["helper"]; // Generate helper code gen_helper($f, 0, $kind, $num, "ANY", "ANY", $helpers[$num]["param"], $helpers[$num]["code"], $lineno, $helpers[$num]["inline"], $helpers[$num]["cold"], $helpers[$num]["hot"]); } else { var_dump($dsc); die("??? $kind:$num\n"); } } } if (is_array($gen_order)) { foreach ($gen_order as $txt) { if ($txt !== null) { out($f, $txt); } } } if (ZEND_VM_LINES) { // Reset #line directives out_line($f); } // Generate handler for undefined opcodes switch ($kind) { case ZEND_VM_KIND_CALL: gen_null_handler($f); break; case ZEND_VM_KIND_SWITCH: out($f,"default: ZEND_NULL_LABEL:\n"); out($f,"\tzend_error_noreturn(E_ERROR, \"Invalid opcode %d/%d/%d.\", OPLINE->opcode, OPLINE->op1_type, OPLINE->op2_type);\n"); out($f,"\tZEND_VM_NEXT_OPCODE(); /* Never reached */\n"); break; case ZEND_VM_KIND_GOTO: out($f,"ZEND_NULL_LABEL:\n"); out($f,"\tzend_error_noreturn(E_ERROR, \"Invalid opcode %d/%d/%d.\", OPLINE->opcode, OPLINE->op1_type, OPLINE->op2_type);\n"); out($f,"\tZEND_VM_NEXT_OPCODE(); /* Never reached */\n"); break; case ZEND_VM_KIND_HYBRID: out($f,"\t\t\tHYBRID_CASE(HYBRID_HALT):\n"); out($f,"#ifdef ZEND_VM_FP_GLOBAL_REG\n"); out($f,"\t\t\t\texecute_data = orig_execute_data;\n"); out($f,"#endif\n"); out($f,"#ifdef ZEND_VM_IP_GLOBAL_REG\n"); out($f,"\t\t\t\topline = orig_opline;\n"); out($f,"#endif\n"); out($f,"\t\t\t\treturn;\n"); out($f,"\t\t\tHYBRID_DEFAULT:\n"); out($f,"\t\t\t\tVM_TRACE(ZEND_NULL)\n"); out($f,"\t\t\t\tZEND_NULL_HANDLER(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU);\n"); out($f,"\t\t\t\tHYBRID_BREAK(); /* Never reached */\n"); break; } } function skip_blanks($f, $prolog, $epilog) { if (trim($prolog) != "" || trim($epilog) != "") { out($f, $prolog.$epilog); } } // Generates executor from skeleton file and definition (specialized or unspecialized) function gen_executor($f, $skl, $spec, $kind, $executor_name, $initializer_name) { global $params, $skeleton_file, $line_no, $gen_order; if ($kind == ZEND_VM_KIND_HYBRID && file_exists(__DIR__ . "/zend_vm_order.txt")) { $gen_order = read_order_file(__DIR__ . "/zend_vm_order.txt"); } else { $gen_order = null; } $switch_labels = array(); $lineno = 0; foreach ($skl as $line) { // Skeleton file contains special markers in form %NAME% those are // substituted by custom code if (preg_match("/(.*)[{][%]([A-Z_]*)[%][}](.*)/", $line, $m)) { switch ($m[2]) { case "DEFINES": out($f,"#define SPEC_START_MASK 0x0000ffff\n"); out($f,"#define SPEC_EXTRA_MASK 0xfffc0000\n"); out($f,"#define SPEC_RULE_OP1 0x00010000\n"); out($f,"#define SPEC_RULE_OP2 0x00020000\n"); out($f,"#define SPEC_RULE_OP_DATA 0x00040000\n"); out($f,"#define SPEC_RULE_RETVAL 0x00080000\n"); out($f,"#define SPEC_RULE_QUICK_ARG 0x00100000\n"); out($f,"#define SPEC_RULE_SMART_BRANCH 0x00200000\n"); out($f,"#define SPEC_RULE_COMMUTATIVE 0x00800000\n"); out($f,"#define SPEC_RULE_ISSET 0x01000000\n"); out($f,"\n"); out($f,"static const uint32_t *zend_spec_handlers;\n"); out($f,"static const void * const *zend_opcode_handlers;\n"); out($f,"static int zend_handlers_count;\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); out($f,"static const void * const * zend_opcode_handler_funcs;\n"); out($f,"static zend_op hybrid_halt_op;\n"); out($f,"#endif\n"); } out($f,"#if (ZEND_VM_KIND != ZEND_VM_KIND_HYBRID) || !ZEND_VM_SPEC\n"); out($f,"static const void *zend_vm_get_opcode_handler(zend_uchar opcode, const zend_op* op);\n"); out($f,"#endif\n\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); out($f,"static const void *zend_vm_get_opcode_handler_func(zend_uchar opcode, const zend_op* op);\n"); out($f,"#else\n"); out($f,"# define zend_vm_get_opcode_handler_func zend_vm_get_opcode_handler\n"); out($f,"#endif\n\n"); } out($f,"#ifndef VM_TRACE\n"); if (is_array($gen_order)) { out($f,"# define VM_TRACE(op) ZEND_VM_GUARD(op);\n"); } else { out($f,"# define VM_TRACE(op)\n"); } out($f,"#endif\n"); out($f,"#ifndef VM_TRACE_START\n"); out($f,"# define VM_TRACE_START()\n"); out($f,"#endif\n"); out($f,"#ifndef VM_TRACE_END\n"); out($f,"# define VM_TRACE_END()\n"); out($f,"#endif\n"); switch ($kind) { case ZEND_VM_KIND_HYBRID: out($f,"#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); out($f,"#define HYBRID_NEXT() goto *(void**)(OPLINE->handler)\n"); out($f,"#define HYBRID_SWITCH() HYBRID_NEXT();\n"); out($f,"#define HYBRID_CASE(op) op ## _LABEL\n"); out($f,"#define HYBRID_BREAK() HYBRID_NEXT()\n"); out($f,"#define HYBRID_DEFAULT ZEND_NULL_LABEL\n"); out($f,"#endif\n"); case ZEND_VM_KIND_CALL: out($f,"\n"); out($f,"#ifdef ZEND_VM_FP_GLOBAL_REG\n"); out($f,"# define ZEND_OPCODE_HANDLER_ARGS void\n"); out($f,"# define ZEND_OPCODE_HANDLER_ARGS_PASSTHRU\n"); out($f,"# define ZEND_OPCODE_HANDLER_ARGS_DC\n"); out($f,"# define ZEND_OPCODE_HANDLER_ARGS_PASSTHRU_CC\n"); out($f,"#else\n"); out($f,"# define ZEND_OPCODE_HANDLER_ARGS zend_execute_data *execute_data\n"); out($f,"# define ZEND_OPCODE_HANDLER_ARGS_PASSTHRU execute_data\n"); out($f,"# define ZEND_OPCODE_HANDLER_ARGS_DC , ZEND_OPCODE_HANDLER_ARGS\n"); out($f,"# define ZEND_OPCODE_HANDLER_ARGS_PASSTHRU_CC , ZEND_OPCODE_HANDLER_ARGS_PASSTHRU\n"); out($f,"#endif\n"); out($f,"\n"); out($f,"#if defined(ZEND_VM_FP_GLOBAL_REG) && defined(ZEND_VM_IP_GLOBAL_REG)\n"); out($f,"# define ZEND_OPCODE_HANDLER_RET void\n"); out($f,"# define ZEND_VM_TAIL_CALL(call) call; return\n"); out($f,"# ifdef ZEND_VM_TAIL_CALL_DISPATCH\n"); out($f,"# define ZEND_VM_CONTINUE() ((opcode_handler_t)OPLINE->handler)(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU); return\n"); out($f,"# else\n"); out($f,"# define ZEND_VM_CONTINUE() return\n"); out($f,"# endif\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"# if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); out($f,"# define ZEND_VM_RETURN() opline = &hybrid_halt_op; return\n"); out($f,"# define ZEND_VM_HOT zend_always_inline ZEND_COLD ZEND_OPT_SIZE\n"); out($f,"# define ZEND_VM_COLD ZEND_COLD ZEND_OPT_SIZE\n"); out($f,"# else\n"); out($f,"# define ZEND_VM_RETURN() opline = NULL; return\n"); out($f,"# define ZEND_VM_HOT\n"); out($f,"# define ZEND_VM_COLD ZEND_COLD ZEND_OPT_SIZE\n"); out($f,"# endif\n"); } else { out($f,"# define ZEND_VM_RETURN() opline = NULL; return\n"); out($f,"# define ZEND_VM_COLD ZEND_COLD ZEND_OPT_SIZE\n"); } out($f,"#else\n"); out($f,"# define ZEND_OPCODE_HANDLER_RET int\n"); out($f,"# define ZEND_VM_TAIL_CALL(call) return call\n"); out($f,"# define ZEND_VM_CONTINUE() return 0\n"); out($f,"# define ZEND_VM_RETURN() return -1\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"# define ZEND_VM_HOT\n"); } out($f,"# define ZEND_VM_COLD ZEND_COLD ZEND_OPT_SIZE\n"); out($f,"#endif\n"); out($f,"\n"); out($f,"typedef ZEND_OPCODE_HANDLER_RET (ZEND_FASTCALL *opcode_handler_t) (ZEND_OPCODE_HANDLER_ARGS);\n"); out($f,"\n"); out($f,"#define DCL_OPLINE\n"); out($f,"#ifdef ZEND_VM_IP_GLOBAL_REG\n"); out($f,"# define OPLINE opline\n"); out($f,"# define USE_OPLINE\n"); out($f,"# define LOAD_OPLINE() opline = EX(opline)\n"); out($f,"# define LOAD_OPLINE_EX()\n"); out($f,"# define LOAD_NEXT_OPLINE() opline = EX(opline) + 1\n"); out($f,"# define SAVE_OPLINE() EX(opline) = opline\n"); out($f,"# define SAVE_OPLINE_EX() SAVE_OPLINE()\n"); out($f,"#else\n"); out($f,"# define OPLINE EX(opline)\n"); out($f,"# define USE_OPLINE const zend_op *opline = EX(opline);\n"); out($f,"# define LOAD_OPLINE()\n"); out($f,"# define LOAD_OPLINE_EX()\n"); out($f,"# define LOAD_NEXT_OPLINE() ZEND_VM_INC_OPCODE()\n"); out($f,"# define SAVE_OPLINE()\n"); out($f,"# define SAVE_OPLINE_EX()\n"); out($f,"#endif\n"); out($f,"#define HANDLE_EXCEPTION() ZEND_ASSERT(EG(exception)); LOAD_OPLINE(); ZEND_VM_CONTINUE()\n"); out($f,"#define HANDLE_EXCEPTION_LEAVE() ZEND_ASSERT(EG(exception)); LOAD_OPLINE(); ZEND_VM_LEAVE()\n"); out($f,"#if defined(ZEND_VM_FP_GLOBAL_REG)\n"); out($f,"# define ZEND_VM_ENTER_EX() ZEND_VM_INTERRUPT_CHECK(); ZEND_VM_CONTINUE()\n"); out($f,"# define ZEND_VM_ENTER() execute_data = EG(current_execute_data); LOAD_OPLINE(); ZEND_VM_ENTER_EX()\n"); out($f,"# define ZEND_VM_LEAVE() ZEND_VM_CONTINUE()\n"); out($f,"#elif defined(ZEND_VM_IP_GLOBAL_REG)\n"); out($f,"# define ZEND_VM_ENTER_EX() return 1\n"); out($f,"# define ZEND_VM_ENTER() opline = EG(current_execute_data)->opline; ZEND_VM_ENTER_EX()\n"); out($f,"# define ZEND_VM_LEAVE() return 2\n"); out($f,"#else\n"); out($f,"# define ZEND_VM_ENTER_EX() return 1\n"); out($f,"# define ZEND_VM_ENTER() return 1\n"); out($f,"# define ZEND_VM_LEAVE() return 2\n"); out($f,"#endif\n"); out($f,"#define ZEND_VM_INTERRUPT() ZEND_VM_TAIL_CALL(zend_interrupt_helper".($spec?"_SPEC":"")."(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU));\n"); out($f,"#define ZEND_VM_LOOP_INTERRUPT() zend_interrupt_helper".($spec?"_SPEC":"")."(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU);\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#define ZEND_VM_DISPATCH(opcode, opline) ZEND_VM_TAIL_CALL(((opcode_handler_t)zend_vm_get_opcode_handler_func(opcode, opline))(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU));\n"); } else { out($f,"#define ZEND_VM_DISPATCH(opcode, opline) ZEND_VM_TAIL_CALL(((opcode_handler_t)zend_vm_get_opcode_handler(opcode, opline))(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU));\n"); } out($f,"\n"); out($f,"static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL zend_interrupt_helper".($spec?"_SPEC":"")."(ZEND_OPCODE_HANDLER_ARGS);\n"); out($f,"static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_NULL_HANDLER(ZEND_OPCODE_HANDLER_ARGS);\n"); out($f,"\n"); break; case ZEND_VM_KIND_SWITCH: out($f,"\n"); out($f,"#define OPLINE opline\n"); out($f,"#ifdef ZEND_VM_IP_GLOBAL_REG\n"); out($f,"# define DCL_OPLINE register const zend_op *opline __asm__(ZEND_VM_IP_GLOBAL_REG);\n"); out($f,"#else\n"); out($f,"# define DCL_OPLINE const zend_op *opline;\n"); out($f,"#endif\n"); out($f,"#define USE_OPLINE\n"); out($f,"#define LOAD_OPLINE() opline = EX(opline)\n"); out($f,"# define LOAD_OPLINE_EX() LOAD_OPLINE()\n"); out($f,"#define LOAD_NEXT_OPLINE() opline = EX(opline) + 1\n"); out($f,"#define SAVE_OPLINE() EX(opline) = opline\n"); out($f,"#define SAVE_OPLINE_EX()\n"); out($f,"#define HANDLE_EXCEPTION() ZEND_ASSERT(EG(exception)); LOAD_OPLINE(); ZEND_VM_CONTINUE()\n"); out($f,"#define HANDLE_EXCEPTION_LEAVE() ZEND_ASSERT(EG(exception)); LOAD_OPLINE(); ZEND_VM_LEAVE()\n"); out($f,"#define ZEND_VM_CONTINUE() goto zend_vm_continue\n"); out($f,"#define ZEND_VM_RETURN() return\n"); out($f,"#define ZEND_VM_ENTER_EX() ZEND_VM_INTERRUPT_CHECK(); ZEND_VM_CONTINUE()\n"); out($f,"#define ZEND_VM_ENTER() execute_data = EG(current_execute_data); LOAD_OPLINE(); ZEND_VM_ENTER_EX()\n"); out($f,"#define ZEND_VM_LEAVE() ZEND_VM_CONTINUE()\n"); out($f,"#define ZEND_VM_INTERRUPT() goto zend_interrupt_helper".($spec?"_SPEC":"").";\n"); out($f,"#define ZEND_VM_LOOP_INTERRUPT() goto zend_interrupt_helper".($spec?"_SPEC":"").";\n"); out($f,"#define ZEND_VM_DISPATCH(opcode, opline) dispatch_handler = zend_vm_get_opcode_handler(opcode, opline); goto zend_vm_dispatch;\n"); out($f,"\n"); break; case ZEND_VM_KIND_GOTO: out($f,"\n"); out($f,"#define OPLINE opline\n"); out($f,"#ifdef ZEND_VM_IP_GLOBAL_REG\n"); out($f,"# define DCL_OPLINE register const zend_op *opline __asm__(ZEND_VM_IP_GLOBAL_REG);\n"); out($f,"#else\n"); out($f,"# define DCL_OPLINE const zend_op *opline;\n"); out($f,"#endif\n"); out($f,"#define USE_OPLINE\n"); out($f,"#define LOAD_OPLINE() opline = EX(opline)\n"); out($f,"#define LOAD_OPLINE_EX() LOAD_OPLINE()\n"); out($f,"#define LOAD_NEXT_OPLINE() opline = EX(opline) + 1\n"); out($f,"#define SAVE_OPLINE() EX(opline) = opline\n"); out($f,"#define SAVE_OPLINE_EX()\n"); if (ZEND_VM_SPEC) { out($f,"#define HANDLE_EXCEPTION() ZEND_ASSERT(EG(exception)); goto ZEND_HANDLE_EXCEPTION_SPEC_LABEL\n"); out($f,"#define HANDLE_EXCEPTION_LEAVE() ZEND_ASSERT(EG(exception)); goto ZEND_HANDLE_EXCEPTION_SPEC_LABEL\n"); } else { out($f,"#define HANDLE_EXCEPTION() ZEND_ASSERT(EG(exception)); goto ZEND_HANDLE_EXCEPTION_LABEL\n"); out($f,"#define HANDLE_EXCEPTION_LEAVE() ZEND_ASSERT(EG(exception)); goto ZEND_HANDLE_EXCEPTION_LABEL\n"); } out($f,"#define ZEND_VM_CONTINUE() goto *(void**)(OPLINE->handler)\n"); out($f,"#define ZEND_VM_RETURN() return\n"); out($f,"#define ZEND_VM_ENTER_EX() ZEND_VM_INTERRUPT_CHECK(); ZEND_VM_CONTINUE()\n"); out($f,"#define ZEND_VM_ENTER() execute_data = EG(current_execute_data); LOAD_OPLINE(); ZEND_VM_ENTER_EX()\n"); out($f,"#define ZEND_VM_LEAVE() ZEND_VM_CONTINUE()\n"); out($f,"#define ZEND_VM_INTERRUPT() goto zend_interrupt_helper".($spec?"_SPEC":"").";\n"); out($f,"#define ZEND_VM_LOOP_INTERRUPT() goto zend_interrupt_helper".($spec?"_SPEC":"").";\n"); out($f,"#define ZEND_VM_DISPATCH(opcode, opline) goto *(void**)(zend_vm_get_opcode_handler(opcode, opline));\n"); out($f,"\n"); break; } if ($kind == ZEND_VM_KIND_HYBRID) { gen_executor_code($f, $spec, ZEND_VM_KIND_CALL, $m[1]); out($f,"\n"); out($f,"#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); out($f,"# undef ZEND_VM_TAIL_CALL\n"); out($f,"# undef ZEND_VM_CONTINUE\n"); out($f,"# undef ZEND_VM_RETURN\n"); // out($f,"# undef ZEND_VM_INTERRUPT\n"); out($f,"\n"); out($f,"# define ZEND_VM_TAIL_CALL(call) call; ZEND_VM_CONTINUE()\n"); out($f,"# define ZEND_VM_CONTINUE() HYBRID_NEXT()\n"); out($f,"# define ZEND_VM_RETURN() goto HYBRID_HALT_LABEL\n"); // out($f,"# define ZEND_VM_INTERRUPT() goto zend_interrupt_helper_SPEC_LABEL\n"); out($f,"#endif\n\n"); } break; case "EXECUTOR_NAME": out($f, $m[1].$executor_name.$m[3]."\n"); break; case "HELPER_VARS": if ($kind == ZEND_VM_KIND_SWITCH) { out($f,$m[1]."const void *dispatch_handler;\n"); } if ($kind != ZEND_VM_KIND_CALL && count($params)) { if ($kind == ZEND_VM_KIND_HYBRID) { out($f, "#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); } // Emit local variables those are used for helpers' parameters foreach ($params as $param => $x) { out($f,$m[1].$param.";\n"); } if ($kind == ZEND_VM_KIND_HYBRID) { out($f, "#endif\n"); } } if ($kind != ZEND_VM_KIND_CALL && $kind != ZEND_VM_KIND_HYBRID) { out($f,"#ifdef ZEND_VM_FP_GLOBAL_REG\n"); out($f,$m[1]."register zend_execute_data *execute_data __asm__(ZEND_VM_FP_GLOBAL_REG) = ex;\n"); out($f,"#else\n"); out($f,$m[1]."zend_execute_data *execute_data = ex;\n"); out($f,"#endif\n"); } else { out($f,"#ifdef ZEND_VM_IP_GLOBAL_REG\n"); out($f,$m[1]."const zend_op *orig_opline = opline;\n"); out($f,"#endif\n"); out($f,"#ifdef ZEND_VM_FP_GLOBAL_REG\n"); out($f,$m[1]."zend_execute_data *orig_execute_data = execute_data;\n"); out($f,$m[1]."execute_data = ex;\n"); out($f,"#else\n"); out($f,$m[1]."zend_execute_data *execute_data = ex;\n"); out($f,"#endif\n"); } break; case "INTERNAL_LABELS": if ($kind == ZEND_VM_KIND_GOTO || $kind == ZEND_VM_KIND_HYBRID) { // Emit array of labels of opcode handlers and code for // zend_opcode_handlers initialization if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); } $prolog = $m[1]; out($f,$prolog."if (UNEXPECTED(execute_data == NULL)) {\n"); out($f,$prolog."\tstatic const void * const labels[] = {\n"); gen_labels($f, $spec, ($kind == ZEND_VM_KIND_HYBRID) ? ZEND_VM_KIND_GOTO : $kind, $prolog."\t\t", $specs); out($f,$prolog."\t};\n"); out($f,$prolog."\tzend_opcode_handlers = (const void **) labels;\n"); out($f,$prolog."\tzend_handlers_count = sizeof(labels) / sizeof(void*);\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,$prolog."\tmemset(&hybrid_halt_op, 0, sizeof(hybrid_halt_op));\n"); out($f,$prolog."\thybrid_halt_op.handler = (void*)&&HYBRID_HALT_LABEL;\n"); out($f,$prolog."\tgoto HYBRID_HALT_LABEL;\n"); } else { out($f,$prolog."\treturn;\n"); } out($f,$prolog."}\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#endif\n"); } } else { skip_blanks($f, $m[1], $m[3]); } break; case "ZEND_VM_CONTINUE_LABEL": if ($kind == ZEND_VM_KIND_CALL || $kind == ZEND_VM_KIND_HYBRID) { // Only SWITCH dispatch method use it out($f,"#if !defined(ZEND_VM_FP_GLOBAL_REG) || !defined(ZEND_VM_IP_GLOBAL_REG)\n"); out($f,$m[1]."\tint ret;".$m[3]."\n"); out($f,"#endif\n"); } else if ($kind == ZEND_VM_KIND_SWITCH) { // Only SWITCH dispatch method use it out($f,"zend_vm_continue:".$m[3]."\n"); } else { skip_blanks($f, $m[1], $m[3]); } break; case "ZEND_VM_DISPATCH": // Emit code that dispatches to opcode handler switch ($kind) { case ZEND_VM_KIND_SWITCH: out($f, $m[1]."dispatch_handler = OPLINE->handler;\nzend_vm_dispatch:\n".$m[1]."switch ((int)(uintptr_t)dispatch_handler)".$m[3]."\n"); break; case ZEND_VM_KIND_GOTO: out($f, $m[1]."goto *(void**)(OPLINE->handler);".$m[3]."\n"); break; case ZEND_VM_KIND_HYBRID: out($f,"#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); out($f, $m[1]."HYBRID_SWITCH()".$m[3]."\n"); out($f,"#else\n"); case ZEND_VM_KIND_CALL: out($f,"#if defined(ZEND_VM_FP_GLOBAL_REG) && defined(ZEND_VM_IP_GLOBAL_REG)\n"); out($f, $m[1]."((opcode_handler_t)OPLINE->handler)(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU);\n"); out($f, $m[1]."if (UNEXPECTED(!OPLINE))".$m[3]."\n"); out($f,"#else\n"); out($f, $m[1]."if (UNEXPECTED((ret = ((opcode_handler_t)OPLINE->handler)(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU)) != 0))".$m[3]."\n"); out($f,"#endif\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#endif\n"); } break; } break; case "INTERNAL_EXECUTOR": if ($kind != ZEND_VM_KIND_CALL) { // Emit executor code if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); } gen_executor_code($f, $spec, $kind, $m[1], $switch_labels); } if ($kind == ZEND_VM_KIND_CALL || $kind == ZEND_VM_KIND_HYBRID) { // Executor is defined as a set of functions if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#else\n"); } out($f, "#ifdef ZEND_VM_FP_GLOBAL_REG\n" . $m[1]."execute_data = orig_execute_data;\n" . "# ifdef ZEND_VM_IP_GLOBAL_REG\n" . $m[1]."opline = orig_opline;\n" . "# endif\n" . $m[1]."return;\n" . "#else\n" . $m[1]."if (EXPECTED(ret > 0)) {\n" . $m[1]."\texecute_data = EG(current_execute_data);\n". $m[1]."\tZEND_VM_LOOP_INTERRUPT_CHECK();\n". $m[1]."} else {\n" . "# ifdef ZEND_VM_IP_GLOBAL_REG\n" . $m[1]."\topline = orig_opline;\n" . "# endif\n". $m[1]."\treturn;\n". $m[1]."}\n". "#endif\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#endif\n"); } } break; case "EXTERNAL_EXECUTOR": if ($kind == ZEND_VM_KIND_CALL) { gen_executor_code($f, $spec, $kind, $m[1]); } break; case "INITIALIZER_NAME": out($f, $m[1].$initializer_name.$m[3]."\n"); break; case "EXTERNAL_LABELS": // Emit code that initializes zend_opcode_handlers array $prolog = $m[1]; if ($kind == ZEND_VM_KIND_GOTO) { // Labels are defined in the executor itself, so we call it // with execute_data NULL and it sets zend_opcode_handlers array out($f,$prolog."static const uint32_t specs[] = {\n"); gen_specs($f, $prolog."\t", $specs); out($f,$prolog."};\n"); out($f,$prolog."zend_spec_handlers = specs;\n"); out($f,$prolog.$executor_name."_ex(NULL);\n"); } else { out($f,$prolog."static const void * const labels[] = {\n"); gen_labels($f, $spec, ($kind == ZEND_VM_KIND_HYBRID) ? ZEND_VM_KIND_CALL : $kind, $prolog."\t", $specs, $switch_labels); out($f,$prolog."};\n"); out($f,$prolog."static const uint32_t specs[] = {\n"); gen_specs($f, $prolog."\t", $specs); out($f,$prolog."};\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); out($f,$prolog."zend_opcode_handler_funcs = labels;\n"); out($f,$prolog."zend_spec_handlers = specs;\n"); out($f,$prolog.$executor_name."_ex(NULL);\n"); out($f,"#else\n"); } out($f,$prolog."zend_opcode_handlers = labels;\n"); out($f,$prolog."zend_handlers_count = sizeof(labels) / sizeof(void*);\n"); out($f,$prolog."zend_spec_handlers = specs;\n"); if ($kind == ZEND_VM_KIND_HYBRID) { out($f,"#endif\n"); } } break; default: die("ERROR: Unknown keyword ".$m[2]." in skeleton file.\n"); } } else { // Copy the line as is out($f, $line); } } } function parse_operand_spec($def, $lineno, $str, &$flags) { global $vm_op_decode; $flags = 0; $a = explode("|",$str); foreach($a as $val) { if (isset($vm_op_decode[$val])) { $flags |= $vm_op_decode[$val]; } else { die("ERROR ($def:$lineno): Wrong operand type '$str'\n"); } } if (!($flags & ZEND_VM_OP_SPEC)) { if (count($a) != 1) { die("ERROR ($def:$lineno): Wrong operand type '$str'\n"); } $a = array("ANY"); } return array_flip($a); } function parse_ext_spec($def, $lineno, $str) { global $vm_ext_decode; $flags = 0; $a = explode("|",$str); foreach($a as $val) { if (isset($vm_ext_decode[$val])) { $flags |= $vm_ext_decode[$val]; } else { die("ERROR ($def:$lineno): Wrong extended_value type '$str'\n"); } } return $flags; } function parse_spec_rules($def, $lineno, $str) { global $used_extra_spec; $ret = array(); $a = explode(",", $str); foreach($a as $rule) { $n = strpos($rule, "="); if ($n !== false) { $id = trim(substr($rule, 0, $n)); $val = trim(substr($rule, $n+1)); switch ($id) { case "OP_DATA": $ret["OP_DATA"] = parse_operand_spec($def, $lineno, $val, $devnull); break; default: die("ERROR ($def:$lineno): Wrong specialization rules '$str'\n"); } $used_extra_spec[$id] = 1; } else { switch ($rule) { case "RETVAL": $ret["RETVAL"] = array(0, 1); break; case "QUICK_ARG": $ret["QUICK_ARG"] = array(0, 1); break; case "SMART_BRANCH": $ret["SMART_BRANCH"] = array(0, 1, 2); break; case "NO_CONST_CONST": $ret["NO_CONST_CONST"] = array(1); break; case "COMMUTATIVE": $ret["COMMUTATIVE"] = array(1); break; case "ISSET": $ret["ISSET"] = array(0, 1); break; default: die("ERROR ($def:$lineno): Wrong specialization rules '$str'\n"); } $used_extra_spec[$rule] = 1; } } return $ret; } function gen_vm($def, $skel) { global $definition_file, $skeleton_file, $executor_file, $op_types, $list, $opcodes, $helpers, $params, $opnames, $vm_op_flags, $used_extra_spec; // Load definition file $in = @file($def); if (!$in) { die("ERROR: Can not open definition file '$def'\n"); } // We need absolute path to definition file to use it in #line directives $definition_file = realpath($def); // Load skeleton file $skl = @file($skel); if (!$skl) { die("ERROR: Can not open skeleton file '$skel'\n"); } // We need absolute path to skeleton file to use it in #line directives $skeleton_file = realpath($skel); // Parse definition file into tree $lineno = 0; $handler = null; $helper = null; $max_opcode_len = 0; $max_opcode = 0; $extra_num = 256; foreach ($in as $line) { ++$lineno; if (strpos($line,"ZEND_VM_HANDLER(") === 0 || strpos($line,"ZEND_VM_INLINE_HANDLER(") === 0 || strpos($line,"ZEND_VM_HOT_HANDLER(") === 0 || strpos($line,"ZEND_VM_HOT_NOCONST_HANDLER(") === 0 || strpos($line,"ZEND_VM_HOT_NOCONSTCONST_HANDLER(") === 0 || strpos($line,"ZEND_VM_HOT_SEND_HANDLER(") === 0 || strpos($line,"ZEND_VM_HOT_OBJ_HANDLER(") === 0 || strpos($line,"ZEND_VM_COLD_HANDLER(") === 0 || strpos($line,"ZEND_VM_COLD_CONST_HANDLER(") === 0 || strpos($line,"ZEND_VM_COLD_CONSTCONST_HANDLER(") === 0) { // Parsing opcode handler's definition if (preg_match( "/^ZEND_VM_(HOT_|INLINE_|HOT_OBJ_|HOT_SEND_|HOT_NOCONST_|HOT_NOCONSTCONST_|COLD_|COLD_CONST_|COLD_CONSTCONST_)?HANDLER\(\s*([0-9]+)\s*,\s*([A-Z_]+)\s*,\s*([A-Z_|]+)\s*,\s*([A-Z_|]+)\s*(,\s*([A-Z_|]+)\s*)?(,\s*SPEC\(([A-Z_|=,]+)\)\s*)?\)/", $line, $m) == 0) { die("ERROR ($def:$lineno): Invalid ZEND_VM_HANDLER definition.\n"); } $hot = !empty($m[1]) ? $m[1] : false; $code = (int)$m[2]; $op = $m[3]; $len = strlen($op); $op1 = parse_operand_spec($def, $lineno, $m[4], $flags1); $op2 = parse_operand_spec($def, $lineno, $m[5], $flags2); $flags = $flags1 | ($flags2 << 8); if (!empty($m[7])) { $flags |= parse_ext_spec($def, $lineno, $m[7]); } if ($len > $max_opcode_len) { $max_opcode_len = $len; } if ($code > $max_opcode) { $max_opcode = $code; } if (isset($opcodes[$code])) { die("ERROR ($def:$lineno): Opcode with code '$code' is already defined.\n"); } if (isset($opnames[$op])) { die("ERROR ($def:$lineno): Opcode with name '$op' is already defined.\n"); } $opcodes[$code] = array("op"=>$op,"op1"=>$op1,"op2"=>$op2,"code"=>"","flags"=>$flags,"hot"=>$hot); if (isset($m[9])) { $opcodes[$code]["spec"] = parse_spec_rules($def, $lineno, $m[9]); if (isset($opcodes[$code]["spec"]["NO_CONST_CONST"])) { $opcodes[$code]["flags"] |= $vm_op_flags["ZEND_VM_NO_CONST_CONST"]; } if (isset($opcodes[$code]["spec"]["COMMUTATIVE"])) { $opcodes[$code]["flags"] |= $vm_op_flags["ZEND_VM_COMMUTATIVE"]; } } $opnames[$op] = $code; $handler = $code; $helper = null; $list[$lineno] = array("handler"=>$handler); } else if (strpos($line,"ZEND_VM_TYPE_SPEC_HANDLER(") === 0 || strpos($line,"ZEND_VM_INLINE_TYPE_SPEC_HANDLER(") === 0 || strpos($line,"ZEND_VM_HOT_TYPE_SPEC_HANDLER(") === 0 || strpos($line,"ZEND_VM_HOT_NOCONST_TYPE_SPEC_HANDLER(") === 0 || strpos($line,"ZEND_VM_HOT_NOCONSTCONST_TYPE_SPEC_HANDLER(") === 0 || strpos($line,"ZEND_VM_HOT_SEND_TYPE_SPEC_HANDLER(") === 0 || strpos($line,"ZEND_VM_HOT_OBJ_TYPE_SPEC_HANDLER(") === 0) { // Parsing opcode handler's definition if (preg_match( "/^ZEND_VM_(HOT_|INLINE_|HOT_OBJ_|HOT_SEND_|HOT_NOCONST_|HOT_NOCONSTCONST_)?TYPE_SPEC_HANDLER\(\s*([A-Z_|]+)\s*,\s*((?:[^(,]|\([^()]*|(?R)*\))*),\s*([A-Za-z_]+)\s*,\s*([A-Z_|]+)\s*,\s*([A-Z_|]+)\s*(,\s*([A-Z_|]+)\s*)?(,\s*SPEC\(([A-Z_|=,]+)\)\s*)?\)/", $line, $m) == 0) { die("ERROR ($def:$lineno): Invalid ZEND_VM_TYPE_HANDLER_HANDLER definition.\n"); } $hot = !empty($m[1]) ? $m[1] : false; $orig_op_list = $m[2]; $code = $extra_num++; foreach (explode('|', $orig_op_list) as $orig_op) { if (!isset($opnames[$orig_op])) { die("ERROR ($def:$lineno): Opcode with name '$orig_op' is not defined.\n"); } $orig_code = $opnames[$orig_op]; $condition = $m[3]; $opcodes[$orig_code]['type_spec'][$code] = $condition; } $op = $m[4]; $op1 = parse_operand_spec($def, $lineno, $m[5], $flags1); $op2 = parse_operand_spec($def, $lineno, $m[6], $flags2); $flags = $flags1 | ($flags2 << 8); if (!empty($m[8])) { $flags |= parse_ext_spec($def, $lineno, $m[8]); } if (isset($opcodes[$code])) { die("ERROR ($def:$lineno): Opcode with name '$code' is already defined.\n"); } $used_extra_spec["TYPE"] = 1; $opcodes[$code] = array("op"=>$op,"op1"=>$op1,"op2"=>$op2,"code"=>"","flags"=>$flags,"hot"=>$hot,"is_type_spec"=>true); if (isset($m[10])) { $opcodes[$code]["spec"] = parse_spec_rules($def, $lineno, $m[10]); if (isset($opcodes[$code]["spec"]["NO_CONST_CONST"])) { $opcodes[$code]["flags"] |= $vm_op_flags["ZEND_VM_NO_CONST_CONST"]; } if (isset($opcodes[$code]["spec"]["COMMUTATIVE"])) { $opcodes[$code]["flags"] |= $vm_op_flags["ZEND_VM_COMMUTATIVE"]; } } $opnames[$op] = $code; $handler = $code; $helper = null; $list[$lineno] = array("handler"=>$handler); } else if (strpos($line,"ZEND_VM_HELPER(") === 0 || strpos($line,"ZEND_VM_INLINE_HELPER(") === 0 || strpos($line,"ZEND_VM_COLD_HELPER(") === 0 || strpos($line,"ZEND_VM_HOT_HELPER(") === 0) { // Parsing helper's definition if (preg_match( "/^ZEND_VM(_INLINE|_COLD|_HOT)?_HELPER\(\s*([A-Za-z_]+)\s*,\s*([A-Z_|]+)\s*,\s*([A-Z_|]+)\s*(?:,\s*SPEC\(([A-Z_|=,]+)\)\s*)?(?:,\s*([^)]*)\s*)?\)/", $line, $m) == 0) { die("ERROR ($def:$lineno): Invalid ZEND_VM_HELPER definition.\n"); } $inline = !empty($m[1]) && $m[1] === "_INLINE"; $cold = !empty($m[1]) && $m[1] === "_COLD"; $hot = !empty($m[1]) && $m[1] === "_HOT"; $helper = $m[2]; $op1 = parse_operand_spec($def, $lineno, $m[3], $flags1); $op2 = parse_operand_spec($def, $lineno, $m[4], $flags2); $param = isset($m[6]) ? $m[6] : null; if (isset($helpers[$helper])) { die("ERROR ($def:$lineno): Helper with name '$helper' is already defined.\n"); } // Store parameters if (ZEND_VM_KIND == ZEND_VM_KIND_GOTO || ZEND_VM_KIND == ZEND_VM_KIND_SWITCH || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID && $hot)) { foreach (explode(",", $param) as $p) { $p = trim($p); if ($p !== "") { $params[$p] = 1; } } } $helpers[$helper] = array("op1"=>$op1,"op2"=>$op2,"param"=>$param,"code"=>"","inline"=>$inline,"cold"=>$cold,"hot"=>$hot); if (!empty($m[5])) { $helpers[$helper]["spec"] = parse_spec_rules($def, $lineno, $m[5]); } $handler = null; $list[$lineno] = array("helper"=>$helper); } else if (strpos($line,"ZEND_VM_DEFINE_OP(") === 0) { if (preg_match( "/^ZEND_VM_DEFINE_OP\(\s*([0-9]+)\s*,\s*([A-Z_]+)\s*\);/", $line, $m) == 0) { die("ERROR ($def:$lineno): Invalid ZEND_VM_DEFINE_OP definition.\n"); } $code = (int)$m[1]; $op = $m[2]; $len = strlen($op); if ($len > $max_opcode_len) { $max_opcode_len = $len; } if ($code > $max_opcode) { $max_opcode = $code; } if (isset($opcodes[$code])) { die("ERROR ($def:$lineno): Opcode with code '$code' is already defined.\n"); } if (isset($opnames[$op])) { die("ERROR ($def:$lineno): Opcode with name '$op' is already defined.\n"); } $opcodes[$code] = array("op"=>$op,"code"=>""); $opnames[$op] = $code; } else if ($handler !== null) { // Add line of code to current opcode handler $opcodes[$handler]["code"] .= $line; } else if ($helper !== null) { // Add line of code to current helper $helpers[$helper]["code"] .= $line; } } ksort($opcodes); // Search for opcode handlers those are used by other opcode handlers foreach ($opcodes as $dsc) { if (preg_match("/^\s*{\s*ZEND_VM_DISPATCH_TO_HANDLER\(\s*([A-Z_]*)\s*\)\s*;\s*}\s*/", $dsc["code"], $m)) { $op = $m[1]; if (!isset($opnames[$op])) { die("ERROR ($def:$lineno): Opcode with name '$op' is not defined.\n"); } $opcodes[$opnames[$dsc['op']]]['alias'] = $op; if (!ZEND_VM_SPEC && ZEND_VM_KIND == ZEND_VM_KIND_SWITCH) { $code = $opnames[$op]; $opcodes[$code]['use'] = 1; } } else if (preg_match_all("/ZEND_VM_DISPATCH_TO_HANDLER\(\s*([A-Z_]*)\s*\)/m", $dsc["code"], $mm, PREG_SET_ORDER)) { foreach ($mm as $m) { $op = $m[1]; if (!isset($opnames[$op])) { die("ERROR ($def:$lineno): Opcode with name '$op' is not defined.\n"); } $code = $opnames[$op]; $opcodes[$code]['use'] = 1; } } } // Generate opcode #defines (zend_vm_opcodes.h) $code_len = strlen((string)$max_opcode); $f = fopen(__DIR__ . "/zend_vm_opcodes.h", "w+") or die("ERROR: Cannot create zend_vm_opcodes.h\n"); // Insert header out($f, HEADER_TEXT); fputs($f, "#ifndef ZEND_VM_OPCODES_H\n#define ZEND_VM_OPCODES_H\n\n"); fputs($f, "#define ZEND_VM_SPEC\t\t" . ZEND_VM_SPEC . "\n"); fputs($f, "#define ZEND_VM_LINES\t\t" . ZEND_VM_LINES . "\n"); fputs($f, "#define ZEND_VM_KIND_CALL\t" . ZEND_VM_KIND_CALL . "\n"); fputs($f, "#define ZEND_VM_KIND_SWITCH\t" . ZEND_VM_KIND_SWITCH . "\n"); fputs($f, "#define ZEND_VM_KIND_GOTO\t" . ZEND_VM_KIND_GOTO . "\n"); fputs($f, "#define ZEND_VM_KIND_HYBRID\t" . ZEND_VM_KIND_HYBRID . "\n"); if ($GLOBALS["vm_kind_name"][ZEND_VM_KIND] === "ZEND_VM_KIND_HYBRID") { fputs($f, "/* HYBRID requires support for computed GOTO and global register variables*/\n"); fputs($f, "#if (defined(__GNUC__) && defined(HAVE_GCC_GLOBAL_REGS))\n"); fputs($f, "# define ZEND_VM_KIND\t\tZEND_VM_KIND_HYBRID\n"); fputs($f, "#else\n"); fputs($f, "# define ZEND_VM_KIND\t\tZEND_VM_KIND_CALL\n"); fputs($f, "#endif\n"); } else { fputs($f, "#define ZEND_VM_KIND\t\t" . $GLOBALS["vm_kind_name"][ZEND_VM_KIND] . "\n"); } fputs($f, "\n"); foreach($vm_op_flags as $name => $val) { fprintf($f, "#define %-24s 0x%08x\n", $name, $val); } fputs($f, "#define ZEND_VM_OP1_FLAGS(flags) (flags & 0xff)\n"); fputs($f, "#define ZEND_VM_OP2_FLAGS(flags) ((flags >> 8) & 0xff)\n"); fputs($f, "\n"); fputs($f, "BEGIN_EXTERN_C()\n\n"); fputs($f, "ZEND_API const char* ZEND_FASTCALL zend_get_opcode_name(zend_uchar opcode);\n"); fputs($f, "ZEND_API uint32_t ZEND_FASTCALL zend_get_opcode_flags(zend_uchar opcode);\n\n"); fputs($f, "END_EXTERN_C()\n\n"); foreach ($opcodes as $code => $dsc) { $code = str_pad((string)$code,$code_len," ",STR_PAD_LEFT); $op = str_pad($dsc["op"],$max_opcode_len); if ($code <= $max_opcode) { fputs($f,"#define $op $code\n"); } } $code = str_pad((string)$max_opcode,$code_len," ",STR_PAD_LEFT); $op = str_pad("ZEND_VM_LAST_OPCODE",$max_opcode_len); fputs($f,"\n#define $op $code\n"); fputs($f, "\n#endif\n"); fclose($f); echo "zend_vm_opcodes.h generated successfully.\n"; // zend_vm_opcodes.c $f = fopen(__DIR__ . "/zend_vm_opcodes.c", "w+") or die("ERROR: Cannot create zend_vm_opcodes.c\n"); // Insert header out($f, HEADER_TEXT); fputs($f,"#include \n"); fputs($f,"#include \n"); fputs($f,"#include \n\n"); fputs($f,"static const char *zend_vm_opcodes_names[".($max_opcode + 1)."] = {\n"); for ($i = 0; $i <= $max_opcode; $i++) { fputs($f,"\t".(isset($opcodes[$i]["op"])?'"'.$opcodes[$i]["op"].'"':"NULL").",\n"); } fputs($f, "};\n\n"); fputs($f,"static uint32_t zend_vm_opcodes_flags[".($max_opcode + 1)."] = {\n"); for ($i = 0; $i <= $max_opcode; $i++) { fprintf($f, "\t0x%08x,\n", isset($opcodes[$i]["flags"]) ? $opcodes[$i]["flags"] : 0); } fputs($f, "};\n\n"); fputs($f, "ZEND_API const char* ZEND_FASTCALL zend_get_opcode_name(zend_uchar opcode) {\n"); fputs($f, "\tif (UNEXPECTED(opcode > ZEND_VM_LAST_OPCODE)) {\n"); fputs($f, "\t\treturn NULL;\n"); fputs($f, "\t}\n"); fputs($f, "\treturn zend_vm_opcodes_names[opcode];\n"); fputs($f, "}\n"); fputs($f, "ZEND_API uint32_t ZEND_FASTCALL zend_get_opcode_flags(zend_uchar opcode) {\n"); fputs($f, "\tif (UNEXPECTED(opcode > ZEND_VM_LAST_OPCODE)) {\n"); fputs($f, "\t\topcode = ZEND_NOP;\n"); fputs($f, "\t}\n"); fputs($f, "\treturn zend_vm_opcodes_flags[opcode];\n"); fputs($f, "}\n"); fclose($f); echo "zend_vm_opcodes.c generated successfully.\n"; // Generate zend_vm_execute.h $f = fopen(__DIR__ . "/zend_vm_execute.h", "w+") or die("ERROR: Cannot create zend_vm_execute.h\n"); $executor_file = realpath(__DIR__ . "/zend_vm_execute.h"); // Insert header out($f, HEADER_TEXT); out($f, "#ifdef ZEND_WIN32\n"); // Suppress free_op1 warnings on Windows out($f, "# pragma warning(disable : 4101)\n"); if (ZEND_VM_SPEC) { // Suppress ( || ) warnings on windows out($f, "# pragma warning(once : 6235)\n"); // Suppress ( && ) warnings on windows out($f, "# pragma warning(once : 6237)\n"); // Suppress ( && ) warnings on windows out($f, "# pragma warning(once : 6239)\n"); // Suppress ( && ) warnings on windows out($f, "# pragma warning(once : 6240)\n"); // Suppress ( || ) warnings on windows out($f, "# pragma warning(once : 6285)\n"); // Suppress ( || ) warnings on windows out($f, "# pragma warning(once : 6286)\n"); // Suppress constant with constant comparison warnings on windows out($f, "# pragma warning(once : 6326)\n"); } out($f, "#endif\n"); // Support for ZEND_USER_OPCODE out($f, "static user_opcode_handler_t zend_user_opcode_handlers[256] = {\n"); for ($i = 0; $i < 255; ++$i) { out($f, "\t(user_opcode_handler_t)NULL,\n"); } out($f, "\t(user_opcode_handler_t)NULL\n};\n\n"); out($f, "static zend_uchar zend_user_opcodes[256] = {"); for ($i = 0; $i < 255; ++$i) { if ($i % 16 == 1) out($f, "\n\t"); out($f, "$i,"); } out($f, "255\n};\n\n"); // Generate specialized executor gen_executor($f, $skl, ZEND_VM_SPEC, ZEND_VM_KIND, "execute", "zend_vm_init"); out($f, "\n"); // Generate zend_vm_get_opcode_handler() function out($f, "static uint32_t ZEND_FASTCALL zend_vm_get_opcode_handler_idx(uint32_t spec, const zend_op* op)\n"); out($f, "{\n"); if (!ZEND_VM_SPEC) { out($f, "\treturn spec;\n"); } else { out($f, "\tstatic const int zend_vm_decode[] = {\n"); out($f, "\t\t_UNUSED_CODE, /* 0 = IS_UNUSED */\n"); out($f, "\t\t_CONST_CODE, /* 1 = IS_CONST */\n"); out($f, "\t\t_TMP_CODE, /* 2 = IS_TMP_VAR */\n"); out($f, "\t\t_UNUSED_CODE, /* 3 */\n"); out($f, "\t\t_VAR_CODE, /* 4 = IS_VAR */\n"); out($f, "\t\t_UNUSED_CODE, /* 5 */\n"); out($f, "\t\t_UNUSED_CODE, /* 6 */\n"); out($f, "\t\t_UNUSED_CODE, /* 7 */\n"); out($f, "\t\t_CV_CODE /* 8 = IS_CV */\n"); out($f, "\t};\n"); out($f, "\tuint32_t offset = 0;\n"); out($f, "\tif (spec & SPEC_RULE_OP1) offset = offset * 5 + zend_vm_decode[op->op1_type];\n"); out($f, "\tif (spec & SPEC_RULE_OP2) offset = offset * 5 + zend_vm_decode[op->op2_type];\n"); if (isset($used_extra_spec["OP_DATA"]) || isset($used_extra_spec["RETVAL"]) || isset($used_extra_spec["QUICK_ARG"]) || isset($used_extra_spec["SMART_BRANCH"]) || isset($used_extra_spec["ISSET"])) { $else = ""; out($f, "\tif (spec & SPEC_EXTRA_MASK) {\n"); if (isset($used_extra_spec["RETVAL"])) { out($f, "\t\t{$else}if (spec & SPEC_RULE_RETVAL) {\n"); out($f, "\t\t\toffset = offset * 2 + (op->result_type != IS_UNUSED);\n"); $else = "} else "; } if (isset($used_extra_spec["QUICK_ARG"])) { out($f, "\t\t{$else}if (spec & SPEC_RULE_QUICK_ARG) {\n"); out($f, "\t\t\toffset = offset * 2 + (op->op2.num <= MAX_ARG_FLAG_NUM);\n"); $else = "} else "; } if (isset($used_extra_spec["OP_DATA"])) { out($f, "\t\t{$else}if (spec & SPEC_RULE_OP_DATA) {\n"); out($f, "\t\t\toffset = offset * 5 + zend_vm_decode[(op + 1)->op1_type];\n"); $else = "} else "; } if (isset($used_extra_spec["ISSET"])) { out($f, "\t\t{$else}if (spec & SPEC_RULE_ISSET) {\n"); out($f, "\t\t\toffset = offset * 2 + (op->extended_value & ZEND_ISEMPTY);\n"); $else = "} else "; } if (isset($used_extra_spec["SMART_BRANCH"])) { out($f, "\t\t{$else}if (spec & SPEC_RULE_SMART_BRANCH) {\n"); out($f, "\t\t\toffset = offset * 3;\n"); out($f, "\t\t\tif (op->result_type == (IS_SMART_BRANCH_JMPZ|IS_TMP_VAR)) {\n"); out($f, "\t\t\t\toffset += 1;\n"); out($f, "\t\t\t} else if (op->result_type == (IS_SMART_BRANCH_JMPNZ|IS_TMP_VAR)) {\n"); out($f, "\t\t\t\toffset += 2;\n"); out($f, "\t\t\t}\n"); $else = "} else "; } if ($else !== "") { out($f, "\t\t}\n"); } out($f, "\t}\n"); } out($f, "\treturn (spec & SPEC_START_MASK) + offset;\n"); } out($f, "}\n\n"); out($f, "#if (ZEND_VM_KIND != ZEND_VM_KIND_HYBRID) || !ZEND_VM_SPEC\n"); out($f, "static const void *zend_vm_get_opcode_handler(zend_uchar opcode, const zend_op* op)\n"); out($f, "{\n"); if (!ZEND_VM_SPEC) { out($f, "\treturn zend_opcode_handlers[zend_vm_get_opcode_handler_idx(opcode, op)];\n"); } else { out($f, "\treturn zend_opcode_handlers[zend_vm_get_opcode_handler_idx(zend_spec_handlers[opcode], op)];\n"); } out($f, "}\n"); out($f, "#endif\n\n"); if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID) { // Generate zend_vm_get_opcode_handler_func() function out($f, "#if ZEND_VM_KIND == ZEND_VM_KIND_HYBRID\n"); out($f,"static const void *zend_vm_get_opcode_handler_func(zend_uchar opcode, const zend_op* op)\n"); out($f, "{\n"); out($f, "\tuint32_t spec = zend_spec_handlers[opcode];\n"); if (!ZEND_VM_SPEC) { out($f, "\treturn zend_opcode_handler_funcs[spec];\n"); } else { out($f, "\treturn zend_opcode_handler_funcs[zend_vm_get_opcode_handler_idx(spec, op)];\n"); } out($f, "}\n\n"); out($f, "#endif\n\n"); } // Generate zend_vm_get_opcode_handler() function out($f, "ZEND_API void ZEND_FASTCALL zend_vm_set_opcode_handler(zend_op* op)\n"); out($f, "{\n"); out($f, "\tzend_uchar opcode = zend_user_opcodes[op->opcode];\n"); if (!ZEND_VM_SPEC) { out($f, "\top->handler = zend_opcode_handlers[zend_vm_get_opcode_handler_idx(opcode, op)];\n"); } else { out($f, "\n"); out($f, "\tif (zend_spec_handlers[op->opcode] & SPEC_RULE_COMMUTATIVE) {\n"); out($f, "\t\tif (op->op1_type < op->op2_type) {\n"); out($f, "\t\t\tzend_swap_operands(op);\n"); out($f, "\t\t}\n"); out($f, "\t}\n"); out($f, "\top->handler = zend_opcode_handlers[zend_vm_get_opcode_handler_idx(zend_spec_handlers[opcode], op)];\n"); } out($f, "}\n\n"); // Generate zend_vm_set_opcode_handler_ex() function out($f, "ZEND_API void ZEND_FASTCALL zend_vm_set_opcode_handler_ex(zend_op* op, uint32_t op1_info, uint32_t op2_info, uint32_t res_info)\n"); out($f, "{\n"); out($f, "\tzend_uchar opcode = zend_user_opcodes[op->opcode];\n"); if (!ZEND_VM_SPEC) { out($f, "\top->handler = zend_opcode_handlers[zend_vm_get_opcode_handler_idx(opcode, op)];\n"); } else { out($f, "\tuint32_t spec = zend_spec_handlers[opcode];\n"); if (isset($used_extra_spec["TYPE"])) { out($f, "\tswitch (opcode) {\n"); foreach($opcodes as $code => $dsc) { if (isset($dsc['type_spec'])) { $orig_op = $dsc['op']; out($f, "\t\tcase $orig_op:\n"); if (isset($dsc["spec"]["COMMUTATIVE"])) { out($f, "\t\t\tif (op->op1_type < op->op2_type) {\n"); out($f, "\t\t\t\tzend_swap_operands(op);\n"); out($f, "\t\t\t}\n"); } $first = true; foreach($dsc['type_spec'] as $code => $condition) { $condition = format_condition($condition); if ($first) { out($f, "\t\t\tif $condition {\n"); $first = false; } else { out($f, "\t\t\t} else if $condition {\n"); } $spec_dsc = $opcodes[$code]; if (isset($spec_dsc["spec"]["NO_CONST_CONST"])) { out($f, "\t\t\t\tif (op->op1_type == IS_CONST && op->op2_type == IS_CONST) {\n"); out($f, "\t\t\t\t\tbreak;\n"); out($f, "\t\t\t\t}\n"); } out($f, "\t\t\t\tspec = ${spec_dsc['spec_code']};\n"); if (isset($spec_dsc["spec"]["COMMUTATIVE"]) && !isset($dsc["spec"]["COMMUTATIVE"])) { out($f, "\t\t\t\tif (op->op1_type < op->op2_type) {\n"); out($f, "\t\t\t\t\tzend_swap_operands(op);\n"); out($f, "\t\t\t\t}\n"); } } if (!$first) { out($f, "\t\t\t}\n"); } out($f, "\t\t\tbreak;\n"); } } $has_commutative = false; foreach($opcodes as $code => $dsc) { if (!isset($dsc['is_type_spec']) && !isset($dsc['type_spec']) && isset($dsc["spec"]["COMMUTATIVE"])) { $orig_op = $dsc['op']; out($f, "\t\tcase $orig_op:\n"); $has_commutative = true; } } if ($has_commutative) { out($f, "\t\t\tif (op->op1_type < op->op2_type) {\n"); out($f, "\t\t\t\tzend_swap_operands(op);\n"); out($f, "\t\t\t}\n"); out($f, "\t\t\tbreak;\n"); out($f, "\t\tcase ZEND_USER_OPCODE:\n"); out($f, "\t\t\tif (zend_spec_handlers[op->opcode] & SPEC_RULE_COMMUTATIVE) {\n"); out($f, "\t\t\t\tif (op->op1_type < op->op2_type) {\n"); out($f, "\t\t\t\t\tzend_swap_operands(op);\n"); out($f, "\t\t\t\t}\n"); out($f, "\t\t\t}\n"); out($f, "\t\t\tbreak;\n"); } out($f, "\t\tdefault:\n"); out($f, "\t\t\tbreak;\n"); out($f, "\t}\n"); } out($f, "\top->handler = zend_opcode_handlers[zend_vm_get_opcode_handler_idx(spec, op)];\n"); } out($f, "}\n\n"); // Generate zend_vm_call_opcode_handler() function if (ZEND_VM_KIND == ZEND_VM_KIND_CALL || ZEND_VM_KIND == ZEND_VM_KIND_HYBRID) { out($f, "ZEND_API int ZEND_FASTCALL zend_vm_call_opcode_handler(zend_execute_data* ex)\n"); out($f, "{\n"); if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID) { out($f,"#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); out($f, "\topcode_handler_t handler;\n"); out($f,"#endif\n"); } out($f, "\tint ret;\n"); out($f, "#ifdef ZEND_VM_IP_GLOBAL_REG\n"); out($f, "\tconst zend_op *orig_opline = opline;\n"); out($f, "#endif\n"); out($f, "#ifdef ZEND_VM_FP_GLOBAL_REG\n"); out($f, "\tzend_execute_data *orig_execute_data = execute_data;\n"); out($f, "\texecute_data = ex;\n"); out($f, "#else\n"); out($f, "\tzend_execute_data *execute_data = ex;\n"); out($f, "#endif\n"); out($f, "\n"); out($f, "\tLOAD_OPLINE();\n"); out($f,"#if defined(ZEND_VM_FP_GLOBAL_REG) && defined(ZEND_VM_IP_GLOBAL_REG)\n"); if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID) { out($f,"#if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID)\n"); out($f, "\thandler = (opcode_handler_t)zend_vm_get_opcode_handler_func(zend_user_opcodes[opline->opcode], opline);\n"); out($f, "\thandler(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU);\n"); out($f, "\tif (EXPECTED(opline != &hybrid_halt_op)) {\n"); out($f,"#else\n"); } out($f, "\t((opcode_handler_t)OPLINE->handler)(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU);\n"); if (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID) { out($f, "\tif (EXPECTED(opline)) {\n"); out($f,"#endif\n"); } else { out($f, "\tif (EXPECTED(opline)) {\n"); } out($f, "\t\tret = execute_data != ex ? (int)(execute_data->prev_execute_data != ex) + 1 : 0;\n"); out($f, "\t\tSAVE_OPLINE();\n"); out($f, "\t} else {\n"); out($f, "\t\tret = -1;\n"); out($f, "\t}\n"); out($f, "#else\n"); out($f, "\tret = ((opcode_handler_t)OPLINE->handler)(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU);\n"); out($f, "\tSAVE_OPLINE();\n"); out($f, "#endif\n"); out($f, "#ifdef ZEND_VM_FP_GLOBAL_REG\n"); out($f, "\texecute_data = orig_execute_data;\n"); out($f, "#endif\n"); out($f, "#ifdef ZEND_VM_IP_GLOBAL_REG\n"); out($f, "\topline = orig_opline;\n"); out($f, "#endif\n"); out($f, "\treturn ret;\n"); out($f, "}\n\n"); } else { out($f, "ZEND_API int ZEND_FASTCALL zend_vm_call_opcode_handler(zend_execute_data* ex)\n"); out($f, "{\n"); out($f, "\tzend_error_noreturn(E_CORE_ERROR, \"zend_vm_call_opcode_handler() is not supported\");\n"); out($f, "\treturn 0;\n"); out($f, "}\n\n"); } fclose($f); echo "zend_vm_execute.h generated successfully.\n"; } function usage() { echo("\nUsage: php zend_vm_gen.php [options]\n". "\nOptions:". "\n --with-vm-kind=CALL|SWITCH|GOTO|HYBRID - select threading model (default is HYBRID)". "\n --without-specializer - disable executor specialization". "\n --with-lines - enable #line directives". "\n\n"); } // Parse arguments for ($i = 1; $i < $argc; $i++) { if (strpos($argv[$i],"--with-vm-kind=") === 0) { $kind = substr($argv[$i], strlen("--with-vm-kind=")); switch ($kind) { case "CALL": define("ZEND_VM_KIND", ZEND_VM_KIND_CALL); break; case "SWITCH": define("ZEND_VM_KIND", ZEND_VM_KIND_SWITCH); break; case "GOTO": define("ZEND_VM_KIND", ZEND_VM_KIND_GOTO); break; case "HYBRID": define("ZEND_VM_KIND", ZEND_VM_KIND_HYBRID); break; default: echo("ERROR: Invalid vm kind '$kind'\n"); usage(); die(); } } else if ($argv[$i] == "--without-specializer") { // Disabling specialization define("ZEND_VM_SPEC", 0); } else if ($argv[$i] == "--with-lines") { // Enabling debugging using original zend_vm_def.h define("ZEND_VM_LINES", 1); } else if ($argv[$i] == "--help") { usage(); exit(); } else { echo("ERROR: Invalid option '".$argv[$i]."'\n"); usage(); die(); } } // Using defaults if (!defined("ZEND_VM_KIND")) { // Using CALL threading by default define("ZEND_VM_KIND", ZEND_VM_KIND_HYBRID); } if (!defined("ZEND_VM_SPEC")) { // Using specialized executor by default define("ZEND_VM_SPEC", 1); } if (!defined("ZEND_VM_LINES")) { // Disabling #line directives define("ZEND_VM_LINES", 0); } gen_vm(__DIR__ . "/zend_vm_def.h", __DIR__ . "/zend_vm_execute.skl");