Messages in this thread | | | Date | Mon, 22 Apr 2024 11:25:25 +0200 | From | "Arnd Bergmann" <> | Subject | Re: gcc-8: arm64/kvm/pauth.: Error: unknown architectural extension `pauth' |
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On Mon, Apr 22, 2024, at 11:13, Mark Rutland wrote: > On Mon, Apr 22, 2024 at 02:04:43PM +0530, Naresh Kamboju wrote: > Given the minimum supported toolchain comes with an assembler that doesn't > necessarily support ARMv8.3, I reckon we'll either have to make NV pauth > support depend upon AS_HAS_ARMV8_3, or manually assemble the PACGA instruction. > > I suspect the latter is the better option.
The .config linked from the report shows
CONFIG_AS_VERSION=23101 CONFIG_ARM64_PTR_AUTH_KERNEL=y CONFIG_AS_HAS_ARMV8_3=y
So it gets detected as supporting ARMv8.3. Is this the wrong conditional to check, or does it get misdetected for an unsupported assembler?
Arnd
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