Re: [build bug] x86_64, -git: Error: unknown pseudo-op: `.cfi_signal_frame'

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On Mon, 2006-10-16 at 08:10 +0200, Ingo Molnar wrote:
> using latest -git i'm getting this build bug on gcc 3.4:
>  arch/x86_64/kernel/entry.S: Assembler messages:
>  arch/x86_64/kernel/entry.S:157: Error: unknown pseudo-op: `.cfi_signal_frame'
>  arch/x86_64/kernel/entry.S:215: Error: unknown pseudo-op: `.cfi_signal_frame'
>  arch/x86_64/kernel/entry.S:333: Error: unknown pseudo-op: `.cfi_signal_frame'
>  arch/x86_64/kernel/entry.S:548: Error: unknown pseudo-op: `.cfi_signal_frame'
>  gcc version 3.4.0 20040129 (Red Hat Linux 3.4.0-0.3)
> using gcc 4.1 it doesnt happen
>  gcc version 4.1.1 20060525 (Red Hat 4.1.1-1)
> this is caused by the following commit:
>  commit adf1423698f00d00b267f7dca8231340ce7d65ef
>  Author: Jan Beulich <[email protected]>
>  Date:   Tue Sep 26 10:52:41 2006 +0200
> reverting that patch solves the build problem and the resulting kernel 
> builds and boots fine.
> 	Ingo

This is a binutils/gas feature; gcc has nothing to do with it. I take it
the gcc 4.1 system is FC5 with binutils and the gcc 3.4
system is something older?

The kernel build system is supposed to detect gas support
for .cfi_signal_frame -- and while the i386 test is obviously broken
(the i386 test for the directive doesn't actually use the directive),
the AMD64 test looks like it should work (assuming as-instr works).

Nicholas Miell <[email protected]>

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