Re: [PATCH v8 3/5] Cleanup ISA string setting

[Guenter Roeck]

Hi Alan,

On 10/14/2018 04:46 PM, Alan Kao wrote:
> Hi Guenter,
>
> On Sat, Oct 13, 2018 at 05:02:05PM -0700, Guenter Roeck wrote:
> > Hi,
> >
> > With this patch in -next applied, I get the following error
> > when building riscv:defconfig.
>
> I guess what you meant was this commit:
> commit 0a5bee05fc67ce2044b8d91a18abbf14042da531

Yes, sorry, I just blindly assumed that the last version I found must have caused
the problem. You are right, v8 actually fixes it (as suggested below).

> The modification in Makefile was
>
> -endif
> -
> -KBUILD_AFLAGS += -march=$(KBUILD_MARCH)$(KBUILD_ARCH_A)fd$(KBUILD_ARCH_C)
> +# ISA string setting
> +riscv-march-$(CONFIG_ARCH_RV32I)       := rv32im
> +riscv-march-$(CONFIG_ARCH_RV64I)       := rv64im
> +riscv-march-$(CONFIG_RISCV_ISA_A)      := $(riscv-march-y)aj
> +riscv-march-y                          := fd
> +riscv-march-$(CONFIG_RISCV_ISA_C)      := $(riscv-march-y)c
>
> and the ":= fd" line was wrong.  It should have been
>
> +riscv-march-y                          := $(riscv-march-y)fd
>
> > What am I missing ? Does RISC-V now require a new non-upstream compiler ?
> > Or a special version of make ? I am currently using GNU Make 4.1.
>
> So I sent the v8 to fix this problem.
> Sorry for the inconvinience.

No worries. At least this problem was (is going to be) easy to fix.
And, yes, I confirmed that the one-line change above fixes the problem.

Guenter

> > Thanks,
> > Guenter
> >
> > ---
>
> And Palmer, it seems that the patch that causes this build error has been
> pulled into linux-next.  Any idea how to fix that one?
>
> Many thanks,
> Alan