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Re: [PATCH] fix UML on x86-64

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To: Ulrich Drepper <drepper@...>
Cc: <linux-kernel@...>, <user-mode-linux-devel@...>, <akpm@...>, <mingo@...>, <tglx@...>
Date: Tuesday, May 6, 2008 - 7:27 pm

On Tue, 6 May 2008, Ulrich Drepper wrote:

It breaks things how?

Because on x86, the cut-off is gcc4 vs pre-4. See arch/x86/Makefile:

        KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
                echo $(call cc-option,-fno-unit-at-a-time); fi ;)

and it's a bit distressing that these compiler flags are set two different 
ways (in fact, I was already bothered by the fact that UML sets it totally 
independently of x86 in the first place).

So what is the UML failure behaviour with gcc-4.1.2?

			Linus
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Messages in current thread:
[PATCH] fix UML on x86-64, Ulrich Drepper, (Tue May 6, 7:04 pm)
Re: [uml-devel] [PATCH] fix UML on x86-64, Jeff Dike, (Wed May 7, 12:00 am)
Re: [PATCH] fix UML on x86-64, Linus Torvalds, (Tue May 6, 7:27 pm)
Re: [PATCH] fix UML on x86-64, Ulrich Drepper, (Tue May 6, 7:38 pm)
Re: [uml-devel] [PATCH] fix UML on x86-64, Jeff Dike, (Tue May 6, 11:26 pm)
Re: [PATCH] fix UML on x86-64, Jeff Dike, (Tue May 6, 9:31 pm)
Re: [PATCH] fix UML on x86-64, Linus Torvalds, (Tue May 6, 8:06 pm)
Re: [PATCH] fix UML on x86-64, Jeff Dike, (Tue May 6, 9:48 pm)
Re: [PATCH] fix UML on x86-64, Linus Torvalds, (Tue May 6, 8:15 pm)
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