Bug 2152012

Summary: [RHEL-8][perl] Perl .ph files are broken on rhel8.
Product: Red Hat Enterprise Linux 8 Reporter: Rajesh Dulhani <rdulhani>
Component: perlAssignee: Jitka Plesnikova <jplesnik>
Status: CLOSED ERRATA QA Contact: Martin Kyral <mkyral>
Severity: high Docs Contact:
Priority: unspecified    
Version: 8.6CC: jplesnik, mkyral
Target Milestone: rcKeywords: Triaged
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: perl-5.26.3-422.el8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 2159759 2159760 (view as bug list) Environment:
Last Closed: 2023-05-16 09:11:46 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Rajesh Dulhani 2022-12-08 21:24:13 UTC 
Description of problem:

Perl .ph files are pretty broken on rhel8.  Almost any attempt to use them produces a confusing warning about _FORTIFY_SOURCE and compiling with optimization (even when nothing is being compiled).


Version-Release number of selected component (if applicable):


How reproducible:

Package - perl-5.32.1-471.module+el8.6.0+13324+628a2397.x86_64.rpm


Steps to Reproduce:


rhel8test04.nyc|psc:~[13:53](2093) $ perl -e 'require "features.ph"'
_FORTIFY_SOURCE requires compiling with optimization (-O) at /usr/lib64/perl5/features.ph line 207.

Another reproducer:

rhel8test04.nyc|psc:~[13:55](2095) $ perl -e 'require "sys/ioctl.ph"'
_FORTIFY_SOURCE requires compiling with optimization (-O) at /usr/lib64/perl5/features.ph line 207.


Actual results:

The normal usecase where we encountered this was ...


require "sys/ioctl.ph"; # for TIOCGWINSZ
Lots of .ph files require features.ph, and they are all affected similarly.  Another example is sys/socket.ph.
.ph files are intended to obtain constants (like TIOCGWINSZ) that are defined in C .h headers. So, we think this is a normal usecase.



Additional info:


Perl .ph files are automatic, mechanical translations of C .h files, and are intended to provide access to C constants in Perl code.  The fortify.h header includes a test to ensure that -O is used when compiling with _FORTIFY_SOURCE, and the header looks for OPTIMIZE, which is set by the compiler whenever -O is used.  Perl translates this test to the .ph file, but nothing ever sets OPTIMIZE  when Perl runs, because nothing is being compiled!  This causes a warning for anything that uses features.ph.  


As a hacky workaround, we could patch anything that uses an affected .ph module to set OPTIMIZE. But that could be a good number of scripts.
Comment 1 Jitka Plesnikova 2022-12-12 11:38:32 UTC 
Thanks for the report. I am able to reproduce the issue. I will investigate what is wrong.
Comment 3 Jitka Plesnikova 2023-01-17 15:52:24 UTC 
commit 5359d5631986e29245d617a4a06d3bbb48e1c751 (HEAD -> rhel-8.8.0, origin/rhel-8.8.0)
Author: Jitka Plesnikova <jplesnik>
Date:   Tue Jan 17 13:46:24 2023 +0100

    Resolves: #2152012
Comment 9 errata-xmlrpc 2023-05-16 09:11:46 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (perl bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2023:3043