php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login
Bug #78714 funcs returning pointer can't use call convention spec
Submitted: 2019-10-21 14:51 UTC Modified: 2019-11-07 10:39 UTC
From: cmb@php.net Assigned: dmitry (profile)
Status: Closed Package: *Extensibility Functions
PHP Version: 7.4Git-2019-10-21 (Git) OS: Windows
Private report: No CVE-ID: None
 [2019-10-21 14:51 UTC] cmb@php.net
Description:
------------
When declaring a function which returns a pointer, any calling
convention specifier is not recognized at the proper position (at
least the proper position for MSVC; not sure about other
compilers).

It appears to be possible to work around that issue by placing the
calling convention specifier between the base type and the `*` (or
even by placing it between `extern` and the base type), but we
should support the proper order as well.

This issue has been found by Alexander Lisachenko.


Test script:
---------------
<?php
$ffi = FFI::cdef(
    'char * __cdecl get_zend_version(void);',
    'php7_debug.dll'
);
echo FFI::string($ffi->get_zend_version());


Expected result:
----------------
Zend Engine v3.4.0-dev, Copyright (c) Zend Technologies

Actual result:
--------------
Fatal error: Uncaught FFI\ParserException: unexpected '__cdecl' at line 1 in %s:4


Patches

Add a Patch

Pull Requests

Add a Pull Request

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2019-11-07 10:39 UTC] nikic@php.net
-Assigned To: +Assigned To: dmitry
 [2019-11-11 09:08 UTC] dmitry@php.net
Automatic comment on behalf of dmitry@zend.com
Revision: http://git.php.net/?p=php-src.git;a=commit;h=ecd0c5b6ad68fb9255c07a96a25f0b7852e882ff
Log: Fixed bug #78714 (funcs returning pointer can't use call convention spec)
 [2019-11-11 09:08 UTC] dmitry@php.net
-Status: Assigned +Status: Closed
 [2019-11-11 09:09 UTC] dmitry@php.net
Automatic comment on behalf of dmitry@zend.com
Revision: http://git.php.net/?p=php-src.git;a=commit;h=ecd0c5b6ad68fb9255c07a96a25f0b7852e882ff
Log: Fixed bug #78714 (funcs returning pointer can't use call convention spec)
 
PHP Copyright © 2001-2019 The PHP Group
All rights reserved.
Last updated: Tue Nov 19 21:01:35 2019 UTC