Re: [bug in php5.3 cvs] op2 of OP_DATA which after INIT_NS_FCALL_BY_NAME is uninitialized

From: Date: Fri, 28 Dec 2007 09:47:37 +0000
Subject: Re: [bug in php5.3 cvs] op2 of OP_DATA which after INIT_NS_FCALL_BY_NAME is uninitialized
References: 1  Groups: php.internals 
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Thanks for catching this. Committed. Dmitry. phpxcache wrote:
http://bugs.php.net/bug.php?id=43696 Description: ------------ as you can see in zend_compile.c
        opline->opcode = ZEND_INIT_NS_FCALL_BY_NAME;
ZEND_INIT_NS_FCALL_BY_NAME's op1 is initialized, so is op2 .........
        opline->opcode = ZEND_OP_DATA;
ZEND_OP_DATA's op1 is initialized here but op2 is not it may not cause problem in zend executor but may in opcode optimizers/cachers suggested fix: Index: zend_compile.c =================================================================== RCS file: /repository/ZendEngine2/zend_compile.c,v retrieving revision 1.647.2.27.2.41.2.32 diff -u -r1.647.2.27.2.41.2.32 zend_compile.c --- zend_compile.c 27 Dec 2007 13:52:05 -0000 1.647.2.27.2.41.2.32 +++ zend_compile.c 28 Dec 2007 08:56:41 -0000 @@ -1504,6 +1504,7 @@
        Z_TYPE(opline->op1.u.constant) = IS_STRING;
        Z_STRLEN(opline->op1.u.constant) =
Z_STRLEN(function_name->u.constant) - prefix_len;
        Z_STRVAL(opline->op1.u.constant) =
zend_str_tolower_dup(Z_STRVAL(function_name->u.constant) + prefix_len, Z_STRLEN(opline->op1.u.constant));
+       SET_UNUSED(opline->op2);
        opline->extended_value =
zend_hash_func(Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant) + 1);
    } else {
        opline->opcode = ZEND_INIT_FCALL_BY_NAME;


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