Re: [PATCH] arm64: Fix compilation error while accessing MPIDR_HWID_BITMASK from .S files

From: Catalin Marinas
Date: Mon Feb 19 2018 - 07:13:22 EST


On Mon, Feb 19, 2018 at 11:19:07AM +0000, Will Deacon wrote:
> > >>On 19/02/2018 06:39, Bhupesh Sharma wrote:
> > >>>Since commit e1a50de37860b3a93a9d643b09638db5aff47650 (arm64: cputype:
> > >>>Silence Sparse warnings), compilation of arm64 architecture is broken
> > >>>with the following error messages:
> > >>>
> > >>> AR arch/arm64/kernel/built-in.o
> > >>> arch/arm64/kernel/head.S: Assembler messages:
> > >>> arch/arm64/kernel/head.S:677: Error: found 'L', expected: ')'
> > >>> arch/arm64/kernel/head.S:677: Error: found 'L', expected: ')'
> > >>> arch/arm64/kernel/head.S:677: Error: found 'L', expected: ')'
> > >>> arch/arm64/kernel/head.S:677: Error: junk at end of line, first
> > >>> unrecognized character is `L'
> > >>> arch/arm64/kernel/head.S:677: Error: unexpected characters following
> > >>> instruction at operand 2 -- `movz x1,:abs_g1_s:0xff00ffffffUL'
> > >>> arch/arm64/kernel/head.S:677: Error: unexpected characters following
> > >>> instruction at operand 2 -- `movk x1,:abs_g0_nc:0xff00ffffffUL'
> > >>>
> > >>>This patch fixes the same by using the UL() macro correctly for
> > >>>assigning the MPIDR_HWID_BITMASK macro value.
> > >>>
> > >>>Signed-off-by: Bhupesh Sharma <bhsharma@xxxxxxxxxx>
[...]
> Thanks for the clarification; Catalin -- can you pick this up for -rc3 please?

Done. Strange that it builds fine with newer toolchains.

--
Catalin