[PATCH 2/5] powerpc/64s: Use .machine power4 around dcbt
Segher Boessenkool
segher at kernel.crashing.org
Fri Mar 1 04:20:25 AEDT 2024
On Thu, Feb 29, 2024 at 11:25:18PM +1100, Michael Ellerman wrote:
> There are multiple decodings for the "dcbt" mnemonic, so the assembler
> has to pick one.
>
> That requires passing -many to the assembler, which is not recommended.
>
> Without -many the clang 14 / binutils 2.38 build fails with:
>
> arch/powerpc/kernel/exceptions-64s.S:2976: Error: junk at end of line: `0b01010'
> clang: error: assembler command failed with exit code 1 (use -v to see invocation)
>
> Fix it by adding .machine directives around the use of dcbt to specify
> which encoding is desired.
>
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
Looks good, thanks!
Acked-by: Segher Boessenkool <segher at kernel.crashing.org>
Segher
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