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Bug #55231 Unsatisfied symbols __sync_fetch_and_add_4
Submitted: 2011-07-18 08:32 UTC Modified: 2011-07-26 15:05 UTC
From: php at dactar dot ch Assigned: felipe (profile)
Status: Closed Package: *Compile Issues
PHP Version: 5.3.7RC3 OS: HP-UX 11.11
Private report: No CVE-ID: None
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 [2011-07-18 08:32 UTC] php at dactar dot ch
Description:
------------
Hello,

I've compiled PHP 5.3.7 RC3 on HP-UX 11.11 with gcc 4.1.2 and following parameters : 

./configure --with-config-file-path=/path/to/etc/php --with-imap=/path/to/imap --with-imap-ssl=/usr --with-libxml-dir=/path/to/libxml2 --with-gd --with-png-dir=/path/to/libpng --with-jpeg-dir=/path/to/jpeg --with-ldap --prefix=/path/to/php --with-ncurses=/path/to/ncurses --with-freetype-dir=/path/to/freetype

I've this error after make : 

/usr/ccs/bin/ld: Unsatisfied symbols:
   __sync_fetch_and_add_4 (first referenced in ext/standard/php_crypt_r.o) (code)
collect2: ld returned 1 exit status
*** Error exit code 1

It works fine with PHP 5.3.6 but not with PHP 5.3.7 RC3.

The diff between 5.3.6 and PHP 5.3.7 RC3 for ext/standard/php_crypt_r.c is : 

1c1
< /* $Id: php_crypt_r.c 311390 2011-05-24 13:48:04Z pajoye $ */
---
> /* $Id: php_crypt_r.c 306939 2011-01-01 02:19:59Z felipe $ */
97c97
< #elif (defined(__GNUC__) && (__GNUC__ >= 4 && __GNUC_MINOR__ >= 1))
---
> #elif (defined(__GNUC__) && (__GNUC__ >= 4 && __GNUC_MINOR__ >= 2))
200c200
<       dwHashLen = 16;
---
>       dwHashLen = pwl + sl + pwl;

I've resolved the situation by return back for line 97 from 

#elif (defined(__GNUC__) && (__GNUC__ >= 4 && __GNUC_MINOR__ >= 1))
                __sync_fetch_and_add(&initialized, 1);

to

#elif (defined(__GNUC__) && (__GNUC__ >= 4 && __GNUC_MINOR__ >= 2))
                __sync_fetch_and_add(&initialized, 1);



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 [2011-07-18 08:54 UTC] pajoye@php.net
-Status: Open +Status: Feedback
 [2011-07-18 08:54 UTC] pajoye@php.net
Thanks for your feedback.

Please provide a patch (svn diff -u) and add a test for HPUX11 as well as this 
code is perfectly valid on other (almost all) platforms using gcc.
 [2011-07-18 10:42 UTC] php at dactar dot ch
-Status: Feedback +Status: Open
 [2011-07-18 10:42 UTC] php at dactar dot ch
Hello pajoye.

I can't do that because I don't understand why the 97th line has changed on 24 may. I don't have low level system / compiler skills to be exactly sure what I'm doing and how to correct that properly.

I can however test any patch and validate it.

Thanks for your help, 

@++ 
JC
 [2011-07-18 22:05 UTC] felipe@php.net
-Status: Open +Status: Assigned -Assigned To: +Assigned To: felipe
 [2011-07-19 18:11 UTC] felipe@php.net
-Status: Assigned +Status: Feedback
 [2011-07-19 18:11 UTC] felipe@php.net
Please try using this snapshot:

  http://snaps.php.net/php-trunk-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/

Such feature requires GCC >= 4.1.2, I've ajusted the check for the version.

Can you test it? :)
 [2011-07-19 18:12 UTC] felipe@php.net
Automatic comment from SVN on behalf of felipe
Revision: http://svn.php.net/viewvc/?view=revision&amp;revision=313452
Log: - Fixed bug #55231 (Unsatisfied symbols __sync_fetch_and_add_4)
 [2011-07-20 11:33 UTC] php at dactar dot ch
-Status: Feedback +Status: Assigned
 [2011-07-20 11:33 UTC] php at dactar dot ch
Hello, 

Sorry, with : 

#elif (defined(__GNUC__) && (__GNUC__ > 4 || \
    (__GNUC__ == 4 && (__GNUC_MINOR__ > 1 || (__GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ > 1)))))

it doesn't work ( Unresolved symbol: __sync_fetch_and_add_4 (code) )

I don't have the problem with : 


#elif (defined(__GNUC__) && (__GNUC__ >= 4 && __GNUC_MINOR__ >= 2))

Thanks

@++
JC
 [2011-07-22 21:09 UTC] felipe@php.net
-Status: Assigned +Status: Analyzed
 [2011-07-22 21:09 UTC] felipe@php.net
I've added a check for HP-UX, GCC seems not have implemented __sync_fetch_and_add_4 for all targets.
 [2011-07-26 14:47 UTC] php at dactar dot ch
Hello felipe, 

I've tested your additionnal check and it's OK for me :)

Can you merge that for official next php 5.3.7 ?

Thanks :)

@++
JC
 [2011-07-26 14:53 UTC] felipe@php.net
-Status: Analyzed +Status: Closed
 [2011-07-26 14:53 UTC] felipe@php.net
It's already in 5.3 branch.

Thanks.
 [2011-07-26 15:05 UTC] php at dactar dot ch
Perfect, thanks :)
 [2011-09-17 00:01 UTC] felipe@php.net
Automatic comment from SVN on behalf of felipe
Revision: http://svn.php.net/viewvc/?view=revision&amp;revision=316885
Log: - Fixed bug #55231 (Unsatisfied symbols __sync_fetch_and_add_4)
 [2012-04-18 09:48 UTC] laruence@php.net
Automatic comment on behalf of felipe
Revision: http://git.php.net/?p=php-src.git;a=commit;h=ad9c9ed5293cc7805853aff954699a49d4cd5b9f
Log: - Fixed bug #55231 (Unsatisfied symbols __sync_fetch_and_add_4)
 [2012-04-18 09:49 UTC] laruence@php.net
Automatic comment on behalf of felipe
Revision: http://git.php.net/?p=php-src.git;a=commit;h=e97b0d7522aa66decf4ee20dd67f5fac44474dde
Log: - Fixed bug #55231 (Unsatisfied symbols __sync_fetch_and_add_4)
 [2012-07-24 23:39 UTC] rasmus@php.net
Automatic comment on behalf of felipe
Revision: http://git.php.net/?p=php-src.git;a=commit;h=ad9c9ed5293cc7805853aff954699a49d4cd5b9f
Log: - Fixed bug #55231 (Unsatisfied symbols __sync_fetch_and_add_4)
 [2012-07-24 23:40 UTC] rasmus@php.net
Automatic comment on behalf of felipe
Revision: http://git.php.net/?p=php-src.git;a=commit;h=e97b0d7522aa66decf4ee20dd67f5fac44474dde
Log: - Fixed bug #55231 (Unsatisfied symbols __sync_fetch_and_add_4)
 [2013-11-17 09:36 UTC] laruence@php.net
Automatic comment on behalf of felipe
Revision: http://git.php.net/?p=php-src.git;a=commit;h=ad9c9ed5293cc7805853aff954699a49d4cd5b9f
Log: - Fixed bug #55231 (Unsatisfied symbols __sync_fetch_and_add_4)
 [2013-11-17 09:37 UTC] laruence@php.net
Automatic comment on behalf of felipe
Revision: http://git.php.net/?p=php-src.git;a=commit;h=e97b0d7522aa66decf4ee20dd67f5fac44474dde
Log: - Fixed bug #55231 (Unsatisfied symbols __sync_fetch_and_add_4)
 
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