Edit report at http://bugs.php.net/bug.php?id=52725&edit=1
ID: 52725
Updated by: f...@php.net
Reported by: fedora at famillecollet dot com
-Summary: undefined reference to
`__sync_bool_compare_and_swap_4'
+Summary: gcc builtin atomic functions are sometimes used when
they are not available
-Status: Assigned
+Status: Analyzed
Type: Bug
Package: FPM related
Operating System: GNU/Linux (RHEL 5.5)
PHP Version: 5.3SVN-2010-08-28 (snap)
Assigned To: fat
Block user comment: N
Previous Comments:
------------------------------------------------------------------------
[2010-08-30 18:19:34] fedora at famillecollet dot com
Try build of latest snapshot (201008301430) with your patch
Fedora 13 x86_64 - gcc 4.4.4 : BUILD OK
$ grep HAVE_BUILTIN_ATOMIC build-fpm/main/php_config.h
#define HAVE_BUILTIN_ATOMIC 1
Enterprise Linux 5 i386 - gcc 4.1.2 : BUILD OK
$ grep HAVE_BUILTIN_ATOMIC build-fpm/main/php_config.h
/* #undef HAVE_BUILTIN_ATOMIC */
So, the patch seems fine to me.
Thanks for taking care of this.
------------------------------------------------------------------------
[2010-08-30 15:47:11] f...@php.net
Not enough information was provided for us to be able
to handle this bug. Please re-read the instructions at
http://bugs.php.net/how-to-report.php
If you can provide more information, feel free to add it
to this bug and change the status back to "Open".
Thank you for your interest in PHP.
Can you please try the following patch ?
Don't forget to run ./buildconf before executing ./configure
--enable-fpm && make.
Thanks
------------------------------------------------------------------------
[2010-08-30 15:45:55] f...@php.net
The following patch has been added/updated:
Patch Name: fpm_builtin_atomic.patch
Revision: 1283175955
URL:
http://bugs.php.net/patch-display.php?bug=52725&patch=fpm_builtin_atomic.patch&revision=1283175955
------------------------------------------------------------------------
[2010-08-28 22:37:23] fedora at famillecollet dot com
Description:
------------
Build fails on RHEL/Centos 5 (gcc-4.1.2)
sapi/fpm/fpm/fpm_shm_slots.o: In function `fpm_spinlock':
/builddir/build/BUILD/php5.3-201008281230/sapi/fpm/fpm/fpm_atomic.h:148:
undefined reference to `__sync_bool_compare_and_swap_4'
/builddir/build/BUILD/php5.3-201008281230/sapi/fpm/fpm/fpm_atomic.h:143:
undefined reference to `__sync_bool_compare_and_swap_4'
This seems linked to commit 302600
http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/sapi/fpm/fpm/fpm_atomic.h?r1=299794&r2=302600
Changing the test fixes the issue
#if (__GNUC__) && (__GNUC__ >= 4 && __GNUC_MINOR__ >= 2)
I don't know which is the correct value.
Build ok on fedora 12 (gcc-4.4.4) and fedora 13 (gcc-4.4.4)
------------------------------------------------------------------------
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