Bug 164041

Summary: External module won't compile by earlier gcc versions
Product: [Fedora] Fedora Reporter: Alexey Chentsov <chentsov>
Component: kernelAssignee: Dave Jones <davej>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 4CC: pfrields, wtogami
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2005-08-30 01:52:36 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
proposed patch none

Description Alexey Chentsov 2005-07-23 07:52:42 UTC 
Description of problem:
During extended compilation with earlier gcc version like gcc-3.2 there's a 
compilation error 'cc1: Invalid option tune=pentium4'.

Version-Release number of selected component (if applicable):
kernel-devel-2.6.11-1.1369_FC4

How reproducible:
every time

Steps to Reproduce:
1.Make sure you have an older compiler version and some module source with path 
module_path
2.cd module_path
3.make M=`pwd` CC=gcc-older-version -C /lib/modules/`uname -r`/build/
  
Actual results:
Compilation error
cc1: Invalid option tune=pentium4

Expected results:


Additional info:
Comment 1 Alexey Chentsov 2005-07-23 07:57:55 UTC 
Created attachment 117098 [details]
proposed patch

File in question is arch/i386/Makefile
Comment 2 Pete Zaitcev 2005-07-23 14:22:32 UTC 
The patch looks reasonable, but please remember that it's completely wrong
to attempt to build an external module with a compiler different than one
used for the kernel. You must not override CC setting.
Comment 3 Alexey Chentsov 2005-07-23 23:06:46 UTC 
There could be many circumstances and it is not necessarily critical to 
recompile the kernel every now and then. Some minor compiler update might 
happen. Or Binutils. Some binaries used by module could be precompiled by 
different compiler. So what. There's another posibility if one gets FC4 kernel 
for a ride/component test. It should be clear that there are cases when using 
different compiler in not completely wrong.

Whatever. It's irrelevant to the bug itself. I could restate the problem as one 
wouldn't be able to compile FC4 kernel source by older compilers.
Comment 4 Dave Jones 2005-07-28 07:32:02 UTC 
fixed in cvs