Bug 532044

Summary: php fails to build on ARM because of an alignment error
Product: [Fedora] Fedora Reporter: Kedar Sovani <kedars>
Component: phpAssignee: Joe Orton <jorton>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 12CC: fedora, jitesh.1337, jorton, rpm
Target Milestone: ---   
Target Release: ---   
Hardware: arm9   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-12-03 22:36:02 EST Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On:    
Bug Blocks: 245418    
Description Flags
proposed fix none

Description Kedar Sovani 2009-10-30 08:49:32 EDT
When the "php" binary is executed to create phar.php, an alignment error is encountered thus causing the build to fail.
Comment 1 Kedar Sovani 2009-10-30 08:52:10 EDT
Created attachment 366794 [details]
proposed fix

proposed fix
Comment 2 Joe Orton 2009-10-30 09:48:46 EDT
-	(z)->value = (v)->value; \
+	memcpy(&(z)->value, &(v)->value, sizeof((z)->value)); \

those are logically equivalent in C, surely?  Where's the alignment issue occurring with the use of this macro?
Comment 3 Jitesh Shah 2009-10-30 11:51:08 EDT
If (z)->value or (v)->value is improperly aligned, the first statement will fault. But, memcpy falls back to a byte-by-byte copy, thus, eliminating any unaligned accesses.
Comment 4 Kedar Sovani 2009-10-30 12:07:46 EDT

ARM expects pointers/words are aligned on word boundary. The pointer values that are passed to this assignment are now aligned on such a boundary, thus causing the problems. 

Here is the failed log:

Here is the successful build after applying this patch:
Comment 5 Bug Zapper 2009-11-16 09:41:04 EST
This bug appears to have been reported against 'rawhide' during the Fedora 12 development cycle.
Changing version to '12'.

More information and reason for this action is here:
Comment 6 Bug Zapper 2010-11-04 02:58:50 EDT
This message is a reminder that Fedora 12 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 12.  It is Fedora's policy to close all
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Comment 7 Bug Zapper 2010-12-03 22:36:02 EST
Fedora 12 changed to end-of-life (EOL) status on 2010-12-02. Fedora 12 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.