Re: [patch 00/2] improve .text size on gcc 4.0 and newer compilers

Ingo Molnar <[email protected]> writes:

>> Remember the above gcc miscompiles the x86-32 kernel with -Os:
>> 
>> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=173764
>
> i'm not sure what the point is.

Nothing special, just a side note.

> There was no sudden rush of -Os related 
> bugs when Fedora switched to it for the kernel,

I found 'ip route add' was broken with -Os. I use FC4s but the kernel
is usually a mutated version of the Linus' tree so I can't check it.

> and the 35% code-size 
> savings were certainly worth it in terms of icache footprint.

Sure.

Good to hear gcc 4.1 is fixed.
-- 
Krzysztof Halasa
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• References:
  • [patch 00/2] improve .text size on gcc 4.0 and newer compilers
    • From: Ingo Molnar <[email protected]>
  • Re: [patch 00/2] improve .text size on gcc 4.0 and newer compilers
    • From: Linus Torvalds <[email protected]>
  • Re: [patch 00/2] improve .text size on gcc 4.0 and newer compilers
    • From: Arjan van de Ven <[email protected]>
  • Re: [patch 00/2] improve .text size on gcc 4.0 and newer compilers
    • From: Linus Torvalds <[email protected]>
  • Re: [patch 00/2] improve .text size on gcc 4.0 and newer compilers
    • From: Ingo Molnar <[email protected]>
  • Re: [patch 00/2] improve .text size on gcc 4.0 and newer compilers
    • From: Ingo Molnar <[email protected]>
  • Re: [patch 00/2] improve .text size on gcc 4.0 and newer compilers
    • From: Krzysztof Halasa <[email protected]>
  • Re: [patch 00/2] improve .text size on gcc 4.0 and newer compilers
    • From: Ingo Molnar <[email protected]>

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