Bug #81578 [Fbk->NoF]: Conditional jump or move depends on uninitialised value(s)
Edit report at https://bugs.php.net/bug.php?id=81578&edit=1
ID: 81578
Updated by: php-bugs@lists.php.net
Reported by: glash dot gnome at gmail dot com
Summary: Conditional jump or move depends on uninitialised
value(s)
-Status: Feedback
+Status: No Feedback
Type: Bug
Package: Class/Object related
Operating System: Linux
PHP Version: 8.0Git-2021-10-31 (snap)
Assigned To: cmb
Private report: N
New Comment:
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
Previous Comments:
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[2021-11-02 15:22:21] nikic@php.net
Taking a stab in the dark, you're probably trying to treat an internal function as an op_array.
internal functions don't have a doc comment. You need to check the function type for
ZEND_USER_FUNCTION.
------------------------------------------------------------------------
[2021-11-02 15:04:36] cmb@php.net
> but the initialization is partly already done in init_op_array ()
> It's missing a :
> op_array-> doc_comment = NULL;
But that is initialized in init_op_array()[1]. Is it possible
that f->op_array is not initialized?
[1] <https://github.com/php/php-src/blob/php-8.0.12/Zend/zend_opcode.c#L65>
------------------------------------------------------------------------
[2021-10-31 15:55:27] glash dot gnome at gmail dot com
Description:
------------
My custom zend_object look for doc_comment and get an error message from valgrind.
I can fix it with ecalloc insteadof emalloc,
// In Zend/zend_arena.h
static zend_always_inline zend_arena* zend_arena_create(size_t size)
{
//zend_arena *arena = (zend_arena*)emalloc(size);
zend_arena *arena = (zend_arena*)ecalloc(size, 1);
[...]
}
but the initialization is partly already done in init_op_array ()
It's missing a :
op_array-> doc_comment = NULL;
but I don't know where.
Can someone take care of it?
Test script:
---------------
static zend_object*
php_gobject_object_create_object(zend_class_entry *class_type)
{
php_gobject_object *intern = zend_object_alloc(sizeof(php_gobject_object), class_type);
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
// [...]
zend_function *f;
ZEND_HASH_FOREACH_PTR(&class_type->function_table, f) {
if (f->op_array.doc_comment) {
php_printf("\n", f->op_array.doc_comment->val);
}
}ZEND_HASH_FOREACH_END();
}
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=81578&edit=1
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