Hello,
commit e1a50de37860 ("arm64: cputype: Silence Sparse warnings")
introduces "UL" suffix to a hex number, but it causes a build error with gcc-6
series.
I've hit below error with 6.2.1 and 6.4.1. Of course this is resolved by the
latest
stable gcc-7.2.1. But from the compatibility point of view, should we revert it?
AS arch/arm64/kernel/head.o
/home/mhiramat/ksrc/linux/arch/arm64/kernel/head.S: Assembler messages:
/home/mhiramat/ksrc/linux/arch/arm64/kernel/head.S:677: Error: found 'L',
expected: ')'
/home/mhiramat/ksrc/linux/arch/arm64/kernel/head.S:677: Error: found 'L',
expected: ')'
/home/mhiramat/ksrc/linux/arch/arm64/kernel/head.S:677: Error: found 'L',
expected: ')'
/home/mhiramat/ksrc/linux/arch/arm64/kernel/head.S:677: Error: junk at end of
line, first unrecognized character is `L'
/home/mhiramat/ksrc/linux/arch/arm64/kernel/head.S:677: Error: unexpected
characters following instruction at operand 2 -- `movz
x1,:abs_g1_s:0xff00ffffffUL'
/home/mhiramat/ksrc/linux/arch/arm64/kernel/head.S:677: Error: unexpected
characters following instruction at operand 2 -- `movk
x1,:abs_g0_nc:0xff00ffffffUL'
make[2]: *** [/home/mhiramat/ksrc/linux/scripts/Makefile.build:425:
arch/arm64/kernel/head.o] error 1
I've checked with below 2 latest gccs.
http://releases.linaro.org/components/toolchain/binaries/latest-6/aarch64-linux-gnu/gcc-linaro-6.4.1-2017.11-x86_64_aarch64-linux-gnu.tar.xz
http://releases.linaro.org/components/toolchain/binaries/latest-7/aarch64-linux-gnu/gcc-linaro-7.2.1-2017.11-x86_64_aarch64-linux-gnu.tar.xz
Thank you,
--
Masami Hiramatsu <mhira...@kernel.org>
