Changeset d441951 in git

Timestamp:

2011-04-10T09:07:58Z (8 years ago)

Author:

Xuefer <xuefer@…>

Branches:

3.0, 3.1, 3.2, master, trunk

Children:

9d6ca98

Parents:

d7a969e

Message:

PHP_6: disassembler/decompiler: fix function static variable

git-svn-id: ​svn://svn.lighttpd.net/xcache/trunk@731 c26eb9a1-5813-0410-bd6c-c2e55f420ca7

Files:

• Decompiler.class.php (modified) (15 diffs)
• phpdop.phpr (modified) (4 diffs)

Decompiler.class.php

@@ -282 +282 @@
                 }
             }
-            if (is_array($v)) {
+            if (is_array(value($v))) {
                 $multiline ++;
             }
@@ -466 +466 @@
     }
     // }}}
-    function &dop_array($op_array, $indent = '') // {{{
-    {
-        $opcodes = &$op_array['opcodes'];
-        $last = count($opcodes) - 1;
-        if ($opcodes[$last]['opcode'] == XC_HANDLE_EXCEPTION) {
-            unset($opcodes[$last]);
-        }
-        $EX['indent'] = '';
+    function &fixOpcode($opcodes, $removeTailing = false) // {{{
+    {
+        if ($removeTailing) {
+            $last = count($opcodes) - 1;
+            if ($opcodes[$last]['opcode'] == XC_HANDLE_EXCEPTION) {
+                unset($opcodes[$last]);
+            }
+        }
         for ($i = 0, $cnt = count($opcodes); $i < $cnt; $i ++) {
             if (function_exists('xcache_get_fixed_opcode')) {
@@ -505 +505 @@
             }
         }
+        return $opcodes;
+    }
+    // }}}
+    function &dop_array($op_array, $indent = '') // {{{
+    {
+        $op_array['opcodes'] = $this->fixOpcode($op_array['opcodes'], true);
+        $opcodes = &$op_array['opcodes'];
+        $EX['indent'] = '';
         // {{{ build jmp array
         for ($i = 0, $cnt = count($opcodes); $i < $cnt; $i ++) {
@@ -757 +765 @@
 
             $resvar = null;
-            if (isset($res['EA.type']) && ($res['EA.type'] & EXT_TYPE_UNUSED) || $res['op_type'] == XC_IS_UNUSED) {
+            if ((ZEND_ENGINE_2_4 ? ($res['op_type'] & EXT_TYPE_UNUSED) : ($res['EA.type'] & EXT_TYPE_UNUSED)) || $res['op_type'] == XC_IS_UNUSED) {
                 $istmpres = false;
             }
@@ -791 +799 @@
                     $EX['called_scope'] = null;
                     $EX['fbc'] = 'new ' . $this->unquoteName($this->getOpVal($op1, $EX));
-                    if (PHP_VERSION < 5) {
+                    if (!ZEND_ENGINE_2) {
                         $resvar = '$new object$';
                     }
@@ -798 +806 @@
                 case XC_FETCH_CLASS: // {{{
                     if ($op2['op_type'] == XC_IS_UNUSED) {
-                        switch ($ext) {
+                        switch (($ext & (defined('ZEND_FETCH_CLASS_MASK') ? ZEND_FETCH_CLASS_MASK : 0xFF))) {
                         case ZEND_FETCH_CLASS_SELF:
                             $class = 'self';
@@ -843 +851 @@
                 case XC_UNSET_VAR:
                     $rvalue = $this->getOpVal($op1, $EX);
-                    $fetchtype = $op2[PHP_VERSION < 5 ? 'fetch_type' : 'EA.type'];
+                    if (defined('ZEND_FETCH_TYPE_MASK')) {
+                        $fetchtype = ($ext & ZEND_FETCH_TYPE_MASK);
+                    }
+                    else {
+                        $fetchtype = $op2[!ZEND_ENGINE_2 ? 'fetch_type' : 'EA.type'];
+                    }
                     switch ($fetchtype) {
                     case ZEND_FETCH_STATIC_MEMBER:
@@ -957 +970 @@
                             switch ($rvalue->fetchType) {
                             case ZEND_FETCH_GLOBAL:
+                            case ZEND_FETCH_GLOBAL_LOCK:
                                 $resvar = 'global ' . $lvalue;
                                 break 2;
@@ -970 +984 @@
                                 unset($statics);
                                 break 2;
+                            default:
                             }
                         }
                     }
+                    // TODO: PHP_6 global
                     $rvalue = str($rvalue);
                     $resvar = "$lvalue = &$rvalue";
@@ -1044 +1060 @@
                     }
 
-                    switch ((PHP_VERSION < 5 ? $op['op2']['var'] /* constant */ : $ext) & (ZEND_ISSET|ZEND_ISEMPTY)) {
+                    switch ((!ZEND_ENGINE_2 ? $op['op2']['var'] /* constant */ : $ext) & (ZEND_ISSET|ZEND_ISEMPTY)) {
                     case ZEND_ISSET:
                         $rvalue = "isset($rvalue)";
@@ -1511 +1527 @@
             default:
                 if ($kk == 'res') {
+                    var_dump($op);
+                    exit;
                     assert(0);
                 }
@@ -1700 +1718 @@
 
                 $mangled = false;
-                if (PHP_VERSION < 5) {
+                if (!ZEND_ENGINE_2) {
                     echo 'var ';
                 }
@@ -1862 +1880 @@
 define('ZEND_ACC_SHADOW', 0x2000);
 
-define('ZEND_FETCH_GLOBAL',           0);
-define('ZEND_FETCH_LOCAL',            1);
-define('ZEND_FETCH_STATIC',           2);
-define('ZEND_FETCH_STATIC_MEMBER',    3);
-define('ZEND_FETCH_GLOBAL_LOCK',      4);
+define('ZEND_ENGINE_2_4', PHP_VERSION >= "5.3.99");
+define('ZEND_ENGINE_2_3', ZEND_ENGINE_2_4 || PHP_VERSION >= "5.3.");
+define('ZEND_ENGINE_2_2', ZEND_ENGINE_2_3 || PHP_VERSION >= "5.2.");
+define('ZEND_ENGINE_2_1', ZEND_ENGINE_2_2 || PHP_VERSION >= "5.1.");
+define('ZEND_ENGINE_2',   ZEND_ENGINE_2_1 || PHP_VERSION >= "5.0.");
+
+if (ZEND_ENGINE_2_4) {
+    define('ZEND_FETCH_GLOBAL',           0x00000000);
+    define('ZEND_FETCH_LOCAL',            0x10000000);
+    define('ZEND_FETCH_STATIC',           0x20000000);
+    define('ZEND_FETCH_STATIC_MEMBER',    0x30000000);
+    define('ZEND_FETCH_GLOBAL_LOCK',      0x40000000);
+    define('ZEND_FETCH_LEXICAL',          0x50000000);
+
+    define('ZEND_FETCH_TYPE_MASK',        0x70000000);
+}
+else {
+    define('ZEND_FETCH_GLOBAL',           0);
+    define('ZEND_FETCH_LOCAL',            1);
+    define('ZEND_FETCH_STATIC',           2);
+    define('ZEND_FETCH_STATIC_MEMBER',    3);
+    define('ZEND_FETCH_GLOBAL_LOCK',      4);
+}
 
 define('ZEND_FETCH_CLASS_DEFAULT',    0);
@@ -1876 +1912 @@
 define('ZEND_FETCH_CLASS_INTERFACE',  6);
 define('ZEND_FETCH_CLASS_STATIC',     7);
+if (ZEND_ENGINE_2_4) {
+    define('ZEND_FETCH_CLASS_TRAIT',     14);
+}
+if (ZEND_ENGINE_2_3) {
+    define('ZEND_FETCH_CLASS_MASK',     0xF);
+}
 
 define('ZEND_EVAL',               (1<<0));
@@ -1885 +1927 @@
 define('ZEND_ISSET',              (1<<0));
 define('ZEND_ISEMPTY',            (1<<1));
-define('EXT_TYPE_UNUSED',         (1<<0));
+if (ZEND_ENGINE_2_4) {
+    define('EXT_TYPE_UNUSED',     (1<<5));
+}
+else {
+    define('EXT_TYPE_UNUSED',     (1<<0));
+}
 
 define('ZEND_FETCH_STANDARD',     0);

phpdop.phpr

@@ -3 +3 @@
 
 $srcdir = dirname(__FILE__);
+require_once("$srcdir/Decompiler.class.php");
 if (file_exists("$srcdir/phpdc.debug.php")) {
     include("$srcdir/phpdc.debug.php");
@@ -11 +12 @@
     switch ($op['op_type']) {
     case 1: // CONST
-        return var_export($op['u.constant'], true);
+        return var_export($op['constant'], true);
 
     case 2: // IS_TMP_VAR
-        return 't@' . $op['u.var'];
+        return 't@' . $op['var'];
 
     case 4:
-        return 'v$' . $op['u.var'];
+        return 'v$' . $op['var'];
 
     case 8: // UNUSED
-        if (isset($op['u.opline_num'])) {
-            return 'l#' . $op['u.opline_num'];
+        if (isset($op['opline_num'])) {
+            return 'l#' . $op['opline_num'];
         }
         else {
@@ -28 +29 @@
 
     default:
-        return $op['op_type'] . $op['u.var'];
+        return $op['op_type'] . $op['var'];
     }
 }
 
-function dump_opcodes($op_array, $indent = '')
+function dump_opcodes($opcodes, $indent = '')
 {
+    global $decompiler;
+
     $types = array('result' => 5, 'op1' => 20, 'op2' => 20);
-    foreach ($op_array as $line => $op) {
+    foreach ($decompiler->fixOpcode($opcodes) as $line => $op) {
         echo $indent;
         echo sprintf("%3d ", $op['lineno']);
@@ -91 +94 @@
     die("Usage: $argv[0] <file>\n");
 }
+$decompiler = new Decompiler();
 $pk = xcache_dasm_file($argv[1]);
 $op_array = $funcs = $classes = null;