Re: [Qemu-devel] [PATCH v7 6/6] tests/tcg/aarch64: Add bti smoke test

[Peter Maydell]

On Sat, 3 Aug 2019 at 22:08, Richard Henderson
<address@hidden> wrote:
>
> This will build with older toolchains, without the upstream support
> for -mbranch-protection.  Such a toolchain will produce a warning
> in such cases,
>
> ld: warning: /tmp/ccyZt0kq.o: unsupported GNU_PROPERTY_TYPE (5) \
> type: 0xc0000000
>
> but the still places the note at the correct location in the binary
> for processing by the runtime loader.

Is there some way to suppress these warnings ? 'make check-tcg'
output includes

  BUILD   TCG tests for aarch64-linux-user
  BUILD   aarch64 guest-tests with aarch64-linux-gnu-gcc
/usr/lib/gcc-cross/aarch64-linux-gnu/7/../../../../aarch64-linux-gnu/bin/ld:
warning: /tmp/cccZ8Fk7.o: unsupported GNU_PROPERTY_TYPE (5) type:
0xc0000000
/usr/lib/gcc-cross/aarch64-linux-gnu/7/../../../../aarch64-linux-gnu/bin/ld:
warning: .note.gnu.build-id section discarded, --build-id ignored.
  RUN     TCG tests for aarch64-linux-user

and these are going to come up in the merge-testing search
for warnings in the build logs...

thanks
-- PMM