On 2021-01-15, Anders Roxell wrote:
On Fri, 15 Jan 2021 at 20:28, Nathan Chancellor natechancellor@gmail.com wrote:
On Fri, Jan 15, 2021 at 08:13:30PM +0100, Anders Roxell wrote:
When building mips tinyconifg the following warning show up
make --silent --keep-going --jobs=8 O=/home/anders/src/kernel/next/out/builddir ARCH=mips CROSS_COMPILE=mips-linux-gnu- HOSTCC=clang CC=clang /srv/src/kernel/next/arch/mips/vdso/elf.S:14:1: warning: DWARF2 only supports one section per compilation unit .pushsection .note.Linux, "a",@note ; .balign 4 ; .long 2f - 1f ; .long 4484f - 3f ; .long 0 ; 1:.asciz "Linux" ; 2:.balign 4 ; 3: ^ /srv/src/kernel/next/arch/mips/vdso/elf.S:34:2: warning: DWARF2 only supports one section per compilation unit .section .mips_abiflags, "a" ^
Rework so the mips vdso Makefile adds flag '-no-integrated-as' unless LLVM_IAS is defined.
Link: https://github.com/ClangBuiltLinux/linux/issues/1256 Cc: stable@vger.kernel.org # v4.19+ Suggested-by: Nick Desaulniers ndesaulniers@google.com Signed-off-by: Anders Roxell anders.roxell@linaro.org
I believe this is the better solution:
https://lore.kernel.org/r/20210115192622.3828545-1-natechancellor@gmail.com/
Yes, I agree.
Cheers, Anders
http://lore.kernel.org/r/20201202010850.jibrjpyu6xgkff5p@google.com Personally I'd drop DWARF v2 as an option.